CN204408056U - A kind of low-temperature-rise high power generation machine - Google Patents

Abstract

The utility model provides a kind of low-temperature-rise high power generation machine, comprises rotor and stator, and rotor inner arc is evenly arranged alternately with S pole magnetite and N pole magnetite, and wherein adjacent S pole magnetite and N pole magnetite are a pair magnetic pole; Stator possesses stator core, is evenly provided with some groups of three-phases around pole unit outside stator core, often organize three-phase around pole unit comprise three adjacent configurations around pole, the adjacent angle around pole is identical, forms intermediate symmetry structure; Stator coil at three-phase around three of pole unit around extremely going up continuous coiling, three-phase is in pole unit, and the coil winding direction that middle spaced winding is extremely gone up is contrary around the coiling direction of extremely going up coil with adjacent both sides; The logarithm of magnetic pole be 5:9 around number of poles matching ratio.Low-temperature-rise high power generation machine of the present utility model, can realize low-temperature-rise, high power generation machine batch production and meet the need of market, simplify coil winding technique and difficulty of processing, reduce the material costs such as winding enamelled wire consumption, improve production efficiency.

Description

A low-temperature power generator

technical field

The utility model relates to a permanent magnet generator, in particular to a low-temperature high-power generator.

Background technique

Fig. 1 is a structural diagram of a magneto rotor (flywheel) in the prior art. As shown in the figure, a number of magnets are uniformly and alternately arranged on the inner arc of the flywheel. Reference numeral 1 is an S pole magnet, and reference numeral 2 is an N pole magnet. . Adjacent S-pole magnets and N-pole magnets are a pair, that is, there are 6 pairs of magnets evenly distributed on the rotor of a general magneto. Fig. 2 is a stator structure diagram of a magnetic motor in the prior art. In the prior art, there are 18 winding poles evenly distributed on the stator core 3', that is, the angle between each winding pole is 20°, and every three The winding poles form a group. Fig. 3 is a structure diagram of a stator coil winding in the prior art, wherein the reference numerals a1-a18 are evenly distributed winding poles, the reference numeral 4' is the insulating core of the winding poles, and 5' is the winding on the winding pole a5, In the prior art, on each set of winding poles in the figure, the coil is wound clockwise from the winding head (a, b, c) and finally reaches the corresponding winding end (a', b', c').

However, the existing magneto has the problem that the output power of the stator is insufficient when the rotor is at a low speed, and the working temperature of the stator coil is extremely high at a high speed. With the continuous development of permanent magnet generator products in the direction of popularization, miniaturization and light weight, on the premise of continuously improving energy conversion rate and ensuring product quality and high reliability, higher requirements are put forward for product cost and environmental protection. Require. In the design and manufacture of general permanent magnet generators, it is difficult to achieve a design structure with certain operating temperature reliability and high power output within a limited structural space. With the requirement of sustainable energy development in the world, it is extremely important to rationally utilize limited resources and realize efficient energy conversion.

Utility model content

In order to solve the above-mentioned technical problems, the utility model makes technical improvements on the basis of the existing magneto, and provides a low-temperature high-power generator.

The utility model provides a low-temperature rising power generator, which includes a rotor and a stator.

S-pole magnets and N-pole magnets are uniformly and alternately arranged in the inner arc of the rotor, wherein adjacent S-pole magnets and N-pole magnets are a pair of magnetic poles;

The stator has a stator core, and several sets of three-phase pole-wound units are evenly arranged on the outer side of the stator core, and each set of three-phase pole-wound units includes three adjacently arranged pole-wounds, and the included angles between adjacent pole-wounds are the same , forming an intermediate symmetrical structure;

Stator coils, the stator coils are continuously wound on the three poles of the three-phase pole-wound unit, and, in the three-phase pole-wound unit, the winding direction of the coil on the middle pole is the same as that on the adjacent two sides The winding direction of the coil on the pole is opposite;

The matching ratio of the logarithm of the magnetic poles to the number of winding poles is 2:3 or 4:9 or 5:9 or 6:9.

Preferably, the matching ratio of the logarithm of the magnetic poles to the number of winding poles is 5:9.

Preferably, the number of pairs of magnetic poles is 10 pairs, and the number of winding poles is 18, forming 6 sets of three-phase pole winding units.

Preferably, in each set of three-phase pole-wound units, the included angle between adjacent pole-wound poles is 18 degrees.

The low-temperature power generator of the utility model has a simple structure and is easy to implement. It solves the design problem of a magneto with small volume and high power output, reduces the cost including the amount of coil winding enameled wire, and makes full and reasonable use of multi-pole uniformly distributed magnetic field and conversion frequency. Induction laws for multi-pole stator coils. Compared with the ratio structure of the number of magnetic pole pairs of the general magneto and the number of stator coil poles, it can solve the structural contradiction problem that the stator output power is insufficient when the rotor is at low speed, and the working temperature of the stator coil is extremely high at high speed, thereby ensuring The power demand of the magneto at different speeds, and the working life of the stator coil is extended.

Description of drawings

Fig. 1 is the prior art magneto rotor magnetic field distribution structural diagram;

Fig. 2 is the stator core structural diagram of magneto in the prior art;

Fig. 3 is the structural diagram of the stator coil winding in the prior art;

Fig. 4 is the structure drawing of the rotor magnetic field distribution of the low temperature power generator of the present invention;

Fig. 5 is the structure diagram of the stator core of the low-temperature rising power generator of the present invention;

Fig. 6 is the structural diagram of the stator coil winding of the low-temperature rising power generator of the present invention;

Fig. 7 is a wiring diagram of the low temperature power generator of the present invention.

Detailed ways

Below in conjunction with the accompanying drawings, the low temperature power generator of the present utility model will be described in detail. The low-temperature raised power generator of the present invention includes a rotor and a stator. The rotor is equipped with a magnet, and the stator is provided with a stator coil winding. Specifically, Fig. 4 is the rotor magnetic field distribution structure of the low-temperature raised power generator of the present invention Figure, compared with the existing magneto (Fig. 1), in this embodiment, the number of magnets is adjusted to 20 poles alternately evenly distributed in the inner arc of the rotor, wherein adjacent N pole magnets 1 and S pole magnets 2 mark is 1 pair, therefore, the number of magnetic pole pairs in this embodiment is 10 pairs.

Fig. 5 is a structural diagram of the stator core of the low-temperature power generator of the present invention. Compared with Fig. 2, the present invention adjusts the 18 winding poles uniformly distributed in the prior art to a non-uniformly distributed structure, and the magnetic pole pairs The matching ratio of the number and the pole winding is 5:9. Specifically, there are 6 groups of three-phase pole winding units X evenly distributed outside the stator core 3, and each group of three-phase pole winding units X includes three adjacently arranged winding poles. poles, the included angles between adjacent poles are the same, both are 18°, thus forming a symmetrical structure in the middle, and the axis of symmetry is the axis of the middle poles;

Fig. 6 is a structural diagram of the stator coil winding of the low-temperature increased power generator of the present invention. Compared with Fig. 3, this embodiment adopts a group winding method. In the figure, the winding poles b1-b3 are a group of three Phase winding pole unit X, winding poles b4-b6, b7-b9, b10-b12, b13-b15 and b16-b17 constitute a group of three-phase pole winding units X respectively, and coil 5 is connected from the first end a' of phase A to winding After counterclockwise winding at the lower end of pole b1, it goes through clockwise winding from the lower end of pole b2, and then winds counterclockwise from the lower end of pole b3, so that the winding direction of the intermediate coil is opposite to that of the adjacent two poles and the end to end The connected structure is the same as that of the other three-phase pole-wound units X. Where a is the end of the A-phase winding, b' is the beginning of the B-phase winding, b is the end of the B-phase winding, c' is the beginning of the C-phase winding, and c is the end of the C-phase winding. With this structure, the total length of wires passing between windings is reduced.

Fig. 7 is a wiring diagram of the low-temperature power generator of the present invention, the tail ends of which the three-phase boundaries are not pressed are respectively connected with the external load Y, thereby realizing the function of the magneto.

The utility model has a simple structure and is easy to implement. It solves the design problem of a magneto with small volume and high power output, reduces the cost including the amount of coil winding enameled wire, and makes full and reasonable use of multi-pole uniformly distributed magnetic field and conversion frequency. Induction laws for multi-pole stator coils. Compared with the ratio structure of the number of magnetic pole pairs of the general magneto and the number of stator coil poles, it can solve the structural contradiction problem that the stator output power is insufficient when the rotor is at low speed, and the working temperature of the stator coil is extremely high at high speed, thereby ensuring The power demand of the magneto at different speeds, and the working life of the stator coil is extended.

In addition, the utility model has other modified examples, for example, it can be used in other single-phase output motors, three-phase output motors and multiple output motors. In addition, the number of pairs of magnetic poles and the number of winding poles are not limited to those described in this embodiment. 5:9 ratio, under the premise that the ratio of the number of magnetic pole pairs and the number of winding poles satisfies (2:3) or (4:9) or (5:9) or (6:9), the corresponding magnetic pole can be selected Logarithms and number of winding poles.

Claims (4)

1. a low-temperature-rise high power generation machine, comprises rotor and stator, it is characterized in that,

Described rotor inner arc is evenly arranged alternately with S pole magnetite and N pole magnetite, and wherein adjacent S pole magnetite and N pole magnetite are a pair magnetic pole;

Described stator possesses stator core, is evenly provided with some groups of three-phases around pole unit outside described stator core, often organize three-phase around pole unit comprise three adjacent configurations around pole, the adjacent angle around pole is identical, forms intermediate symmetry structure;

Stator coil, described stator coil at described three-phase around three of pole unit around extremely going up continuous coiling, and described three-phase is in pole unit, and the coil winding direction that middle spaced winding is extremely gone up is contrary around the coiling direction of extremely going up coil with adjacent both sides;

The logarithm of described magnetic pole and described around number of poles matching ratio be 2:3 or 4:9 or 5:9 or 6:9.

2. as claimed in claim 1, wherein low-temperature-rise high power generation machine, is characterized in that, the logarithm of described magnetic pole and described around number of poles matching ratio be 5:9.

3. the low-temperature-rise high power generation machine described in claim 2, is characterized in that, described magnetic pole logarithm is 10 right, and described is 18 around number of poles, forms 6 groups of three-phases around pole unit.

4. the low-temperature-rise high power generation machine described in claim 3, is characterized in that, often organizes described three-phase in pole unit, and the adjacent angle around pole is 18 degree.