CN201466812U - An electronic power supply device for horizontally axially rotating components - Google Patents

Abstract

The utility model discloses an electronic power supply device for horizontal and axial rotating parts, which comprises a shell assembly, a three-phase permanent magnet alternator and an eccentric stator weight assembly, and the shell assembly is an inner part of the shell of the three-phase permanent magnet alternator. Waterproof and airtight. The three-phase permanent magnet alternator includes a rotor, a stator shaft and an eccentric weight, the stator shaft passes through the rotor from the center of the rotor, and an eccentric weight is set on the stator shaft; the eccentric stator weight assembly is arranged on the rotating part The central part of the eccentric stator weight assembly does not rotate with the rotating parts; the rotor and the housing assembly are integrated, and the rotor and the housing assembly rotate together with the rotating parts. The beneficial effect is: the generator has simple structure, high reliability, strong environmental adaptability, small size, light weight, better performance than high, medium and low speed generators with the same power, and it can be used as a tire pressure monitoring device for wheels It can also be used for power supply of advertising, lighting and other devices on large rotating parts.

Description

An electronic power supply device for horizontally axially rotating components

technical field

The utility model relates to an electronic power supply device for rotating components, in particular to a three-phase permanent magnet alternating current generator for electronic power supply for horizontally axially rotating components.

Background technique

A generator is a mechanical device that converts other forms of energy into electrical energy. It is driven by a water turbine, steam turbine, diesel engine or other power machinery, and converts the energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and transmits it to the generator. Converted to electrical energy by a generator. Generators are widely used in industrial and agricultural production, national defense, science and technology and daily life.

There are many forms of generators, but their working principles are all based on the law of electromagnetic induction and the law of electromagnetic force. Therefore, its structure is generally: magnetic and conductive materials are used to form a magnetic circuit and a circuit for mutual electromagnetic induction to generate electromagnetic power and achieve the purpose of energy conversion.

Generators are usually composed of stators, rotors, end covers, bearings and other components. The stator is composed of stator core, wire wrap winding, frame and other structural parts that fix these parts. The rotor is composed of rotor core (or magnetic pole, magnetic yoke) winding, guard ring, center ring, slip ring, fan and shaft and other components. The stator and the rotor of the generator are connected and assembled by the bearing and the end cover, so that the rotor can rotate in the stator and do the movement of cutting the magnetic force line, thereby generating an induced potential, which is drawn out through the terminal and connected to the circuit to generate a current.

In order to monitor the technical status of rotating parts in real time, sensors are installed on many rotating parts. When the information of these sensors needs to be sent, an information transmitting device should be installed on the rotating parts. Therefore, these devices require a certain power supply to ensure their reliable operation. The traditional solution to this problem is to use rechargeable batteries or rechargeable battery packs. However, this kind of device has the following disadvantages: the capacity of the rechargeable battery is limited, and the battery needs to be frequently charged or replaced, which brings a lot of inconvenience.

Contents of the invention

The technical problem to be solved by the utility model is to provide a three-phase permanent magnet alternator for electronic power supply on a horizontal axial rotating component.

The technical solution adopted by the utility model is: an electronic power supply device for horizontal and axial rotating components, including a shell assembly, a three-phase permanent magnet alternator and an eccentric stator weight assembly of the three-phase permanent magnet alternator , the casing assembly waterproofs and seals the casing inner parts of the three-phase permanent magnet alternator.

The three-phase permanent magnet alternator includes an eccentric stator weight assembly and a rotor; the eccentric stator weight assembly includes a stator shaft and an eccentric weight, and the stator shaft starts from the center of the rotor Through the rotor, an eccentric weight is set on the stator shaft; the eccentric stator weight assembly is arranged in the center of the rotating part, and the eccentric stator weight assembly does not rotate with the rotating part; the rotor and the housing assembly are integrated , the rotor and housing assembly rotate together with the rotating parts.

Under the condition of the highest rotational speed of the rotating component, the eccentric gravity moment of the eccentric stator weight assembly is greater than the magnetic moment of the rotor.

The three-phase permanent magnet alternator on the rotating part is installed at the center of the rotating part, and the rotation center of the three-phase permanent magnet alternator coincides with the rotation center of the rotating part.

The beneficial effects of the utility model are: the generator has simple structure, high reliability, strong environmental adaptability, small size, light weight, better performance than high, medium and low speed generators of the same power, and it can be used for The power supply of the air pressure monitoring device can also be used for the power supply of advertising, lighting and other devices on large rotating parts.

Description of drawings

Fig. 1 is a schematic diagram of the three-phase permanent magnet alternator on the horizontal axial rotating part of the utility model. In the picture:

1: Stator shaft 2: Rotor 3: Rotating parts 4: Eccentric weight.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Fig. 1 is a schematic diagram of the three-phase permanent magnet alternator on the horizontal axial rotating part of the utility model. As shown in Figure 1, the electronic power supply device for horizontal axially rotating parts of the utility model includes a three-phase permanent magnet alternator and an eccentric stator weight assembly of the three-phase permanent magnet alternator, and the shell assembly is The internal parts of the shell of the three-phase permanent magnet alternator are waterproof and sealed. The three-phase permanent magnet alternator includes an eccentric stator weight assembly and a rotor 2; the eccentric stator weight assembly includes a stator shaft 1 and an eccentric weight 4, and the stator shaft 1 Pass through the rotor from the center of the rotor 2, and can run relative to each other. The stator shaft 1 is equipped with an eccentric weight 4; the eccentric stator weight assembly is arranged at the center of the rotating part, and the eccentric stator weight The assembly does not rotate with the rotating part 3; the rotor 2 is integrated with the housing assembly, and the rotor 2 and the housing assembly rotate together with the rotating part 3. Under the condition of the highest rotational speed of the rotating part 3, the eccentric gravity moment of the eccentric stator weight assembly is greater than the magnetic moment of the rotor. The three-phase permanent magnet alternator on the rotating part 3 is installed at the center of the rotating part, and the rotation center of the three-phase permanent magnet alternator coincides with the rotation center of the rotating part 3 .

The three-phase permanent magnet alternator on the horizontal axial rotating part is composed of three parts, the first part is the three-phase permanent magnet alternator, the second part is the eccentric stator weight assembly, and the third part is the shell assembly.

The casing of the three-phase permanent magnet alternator is fixed on the rotating part, and its rotation center coincides with the rotating part. In order to improve strength, the shell is made of metal material, and in order to reduce weight, the bottom plate is made of synthetic material. The shell cover and the bottom plate form a tight space, which seals the three-phase permanent magnet alternator in a closed room, so that the three-phase permanent magnet alternator can operate under wet (even in water) or muddy harsh conditions.

The working principle of the three-phase permanent magnet alternator on the horizontal axial rotating part of the utility model is:

Usually, the rotor power of the generator is input from the outside, while the stator is fixed, and the relative movement between the rotor and the stator is easy to realize. However, if the generator is installed on the rotating part, since there is no fixed object to support the stator, the relative movement between the stator and the rotor cannot be realized, and the rotor will not cut the magnetic field lines, so power generation cannot be realized.

The stator of the three-phase permanent magnet alternator is a neodymium iron boron magnet, and the rotor is a three-phase winding. When the three-phase winding rotates, there will be relative motion between the stator and the rotor, and the rotor will cut the magnetic force line, and a sinusoidal alternating current with the same frequency and equal amplitude will be generated in the three-phase winding.

The stator shaft of the utility model passes through the rotor from the center of the rotor. An eccentric weight is arranged on the stator shaft. The center of gravity of the eccentric weight is always vertical to the center of the earth due to the action of gravity. The eccentric moment generated by the eccentric weight must be guaranteed at At the highest rotational speed of the rotating parts, the eccentric stator weight assembly always overcomes the magnetic moment of the rotor and does not rotate with the rotor.

The rotor is fixed on the rotating part and rotates together with the rotating part; the stator shaft is equipped with an eccentric weight to form an eccentric stator weight assembly, which does not rotate with the rotating part. When the rotating part rotates, the eccentric stator weight When the block assembly and the rotor move relative to each other, the rotor will cut the magnetic lines of force, thereby generating corresponding induced currents on the three-phase windings.

The three-phase windings are welded on the support plate, the support plate is connected to the casing of the generator, the casing of the three-phase permanent magnet alternator is installed at the center of the rotating part, and the eccentric stator weight assembly does not rotate with the rotating part; The casing and rotor of a phase permanent magnet alternator turn with the rotating parts.

The generator has the characteristics of simple structure, high reliability, strong environmental adaptability, small size, light weight, high specific power, good medium and low speed power generation performance, and can adopt silicon controlled rectification and voltage stabilization technology.

It is worth pointing out that the scope of protection of the utility model is not limited to the above-mentioned specific examples. According to the basic technical concept of the utility model, as long as those of ordinary skill in the art do not need to go through creative work, the implementation modes that can be associated with it all belong to Protection scope of the present utility model.

Claims (4)

1. An electronic power supply device for horizontally axially rotating components, comprising a housing assembly, characterized in that it also includes a three-phase permanent magnet alternator and an eccentric stator weight assembly of the three-phase permanent magnet alternator, The housing assembly waterproofs and seals housing inner components of the three-phase permanent magnet alternator. 2. An electronic power supply device for horizontal axially rotating components according to claim 1, wherein the three-phase permanent magnet alternator includes an eccentric stator weight assembly and a rotor (2); The eccentric stator weight assembly includes a stator shaft (1) and an eccentric weight (4), the stator shaft (1) passes through the rotor from the center of the rotor (2), and the stator shaft (1 ) is set with an eccentric weight (4); the eccentric stator weight assembly is arranged at the center of the rotating part, and the eccentric stator weight assembly does not rotate with the rotating part; the rotor (2) is integrated with the shell assembly, and the The rotor (2) and the housing assembly rotate together with the rotating parts. 3. The electronic power supply device for horizontal axial rotating parts according to claim 2, characterized in that, under the condition of the highest rotational speed of the rotating parts (3), the eccentric weight of the eccentric stator weight assembly The torque is greater than the magnetic torque of the rotor. 4. An electronic power supply device for horizontally axially rotating parts according to claim 3, characterized in that the three-phase permanent magnet alternator on the rotating part (3) is installed on the rotating part (3) The center position of the three-phase permanent magnet alternator coincides with the rotation center of the rotating component (3).

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