阅读说明：本技术 一种小型的永磁发电机 (Small permanent magnet generator ) 是由 刘忠福 朱正东 于 2019-08-26 设计创作，主要内容包括：本发明公开了一种小型的永磁发电机,包括外壳,外壳的左侧固接有前端盖,外壳的右侧内腔固接有后端盖,外壳的右侧固接有罩壳,外壳的内腔中心插接有转动轴,转动轴的后侧套接有固定套,固定套上固接有风扇叶片,风扇叶片通过内六角螺栓与固定套紧固连接,固定套与转动轴之间插接有平键,转动轴的外壁套接有轴套,外壳的内腔侧壁固接有定子线圈,外壳的顶部固接有第一接线盒和第二接线盒,转动轴与前端盖和后端盖的连接处均设置有转动轴承。本发明解决发电机在实际工作中会占有空间大,永磁发电机的磁路结构多种多样,漏磁路十分复杂而且漏磁通占的比例较大,铁磁材料部分又比较容易饱和的问题。(The invention discloses a small permanent magnet generator which comprises a shell, wherein a front end cover is fixedly connected to the left side of the shell, a rear end cover is fixedly connected to a right inner cavity of the shell, a housing is fixedly connected to the right side of the shell, a rotating shaft is inserted into the center of the inner cavity of the shell, a fixing sleeve is sleeved on the rear side of the rotating shaft, fan blades are fixedly connected to the fixing sleeve and are fixedly connected with the fixing sleeve through hexagon socket head bolts, a flat key is inserted between the fixing sleeve and the rotating shaft, a shaft sleeve is sleeved on the outer wall of the rotating shaft, a stator coil is fixedly connected to the side wall of the inner cavity of the shell, a first junction box and a second junction box are fixedly connected to the top. The invention solves the problems that the generator occupies large space in actual work, the magnetic circuit structures of the permanent magnet generator are various, the leakage magnetic circuit is very complex, the proportion of the leakage magnetic flux is large, and the ferromagnetic material part is easy to saturate.)

1. A miniature permanent magnet generator comprising a housing (1), characterized in that: the left side rigid coupling of shell (1) has front end housing (2), the right side inner chamber rigid coupling of shell (1) has rear end housing (3), the right side rigid coupling of shell (1) has housing (4), the inner chamber center of shell (1) is pegged graft and is had axis of rotation (13), and the left side of axis of rotation (4) runs through the center of front end housing (2), the rear side of axis of rotation (13) has cup jointed fixed cover (5), the rigid coupling has fan blade (6) on fixed cover (5), fan blade (6) are through interior hexagon bolt (7) and fixed cover (5) fastening connection, it has parallel key (8) to peg graft between fixed cover (5) and axis of rotation (13), the outer wall of axis of rotation (4) has cup jointed axle sleeve (9), the inner chamber lateral wall rigid coupling of shell (1) has stator coil (10), the top rigid coupling of shell (1) has first terminal box (11) and second terminal box (12), and rotary bearings (14) are arranged at the joints of the rotary shaft (13) and the front end cover (2) and the rear end cover (3).

2. a miniature permanent magnet generator according to claim 1, wherein: the rotor (901) is fixedly connected to the shaft sleeve (9), and the rotor (901) is fixedly connected with the shaft sleeve (9) through a fastening bolt (902).

3. A miniature permanent magnet generator according to claim 1, wherein: the first junction box (11) is provided with one, the second junction boxes (12) are three, the three second junction boxes (12) are arranged side by side at equal intervals, and waterproof joints (1201) are arranged in inner cavities of the first junction box (11) and the second junction boxes (12).

4. A miniature permanent magnet generator according to claim 2, wherein: the rotor (901) is embedded with magnetic steel, the magnetic steel is in one of a diamond shape, a tile shape, a square shape or a cylindrical shape, and the magnetic steel is made of an aluminum-nickel-cobalt alloy material.

5. A miniature permanent magnet generator according to claim 1, wherein: and a mounting groove (1301) is formed in the left side of the rotating shaft (13).

6. A miniature permanent magnet generator according to claim 1, wherein: the right side wall inner chamber of housing (4) is opened there is the ventilation hole, the ventilation hole is opened there is the multiunit, and the ventilation hole is circumference array form setting along the right side wall center of housing (4).

Technical Field

The invention relates to the technical field of generators, in particular to a small permanent magnet generator.

Background

The generator is mechanical equipment which converts other forms of energy into electric energy, is driven by a water turbine, a steam turbine, a diesel engine or other power machines, converts energy generated by water flow, air flow, fuel combustion or nuclear fission into mechanical energy and transmits the mechanical energy to the generator, and then the generator converts the mechanical energy into electric energy.

The generator has wide application in industrial and agricultural production, national defense, science and technology and daily life. The generator has many forms, but the working principle is based on the law of electromagnetic induction and the law of electromagnetic force. Appropriate magnetic conductive and electric conductive materials are used to form a magnetic circuit and a circuit which mutually perform electromagnetic induction so as to generate electromagnetic power and achieve the purpose of energy conversion.

The generator can occupy a large space in actual work, the magnetic circuit structure of the permanent magnet generator is various, the leakage magnetic circuit is very complex, the proportion of the leakage magnetic flux is large, and the ferromagnetic material part is easy to saturate. For this reason, we have designed a small permanent magnet generator.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a small permanent magnet generator, which solves the problems that the generator occupies a large space in the actual work, the magnetic circuit structures of the permanent magnet generator are various, the leakage magnetic circuit is very complex, the proportion of the leakage magnetic flux is large, and the ferromagnetic material part is easy to saturate.

In order to achieve the purpose, the invention adopts the technical scheme that:

The utility model provides a miniature permanent magnet generator, includes the shell, the left side rigid coupling of shell has the front end housing, the right side inner chamber rigid coupling of shell has the rear end cap, the right side rigid coupling of shell has the housing, peg graft at the inner chamber center of shell has the axis of rotation, and the left side of axis of rotation runs through the center of front end housing, the rear side of axis of rotation has cup jointed fixed cover, the fixed rigid coupling that sheathes in has the fan blade, the fan blade passes through hexagon socket head cap bolt and fixed cover fastening connection, it has the parallel key to peg graft between fixed cover and the axis of rotation, the axle sleeve has been cup jointed to the outer wall of axis of rotation, the inner chamber lateral wall rigid coupling of shell has stator coil, the top rigid coupling of shell has first terminal box and second terminal box, the junction.

In the foregoing small permanent magnet generator, the shaft sleeve is fixedly connected with the rotor, and the rotor is tightly connected with the shaft sleeve through a fastening bolt.

in the miniature permanent magnet generator, the number of the first junction boxes is one, the number of the second junction boxes is three, the three second junction boxes are arranged side by side at equal intervals, and the inner cavities of the first junction box and the second junction box are provided with waterproof joints.

In the small permanent magnet generator, the rotor is embedded with the magnetic steel, the magnetic steel is in one of a diamond shape, a tile shape, a square shape or a cylindrical shape, and the magnetic steel is made of an alnico alloy material.

In the foregoing small permanent magnet generator, the left side of the rotating shaft is provided with a mounting groove.

In the small permanent magnet generator, the inner cavity of the right side wall of the housing is provided with the plurality of groups of ventilation holes, and the ventilation holes are arranged in a circumferential array along the center of the right side wall of the housing.

The invention has the beneficial effects that: the first junction box is provided with one, the second junction box is provided with three, the three second junction boxes are arranged side by side at equal intervals, the inner cavities of the first junction box and the second junction box are provided with waterproof joints, the waterproof joints can prevent water and increase the waterproofness of the generator, the rotor is embedded with magnetic steel which is one of diamond, tile-shaped, square or cylindrical, the magnetic steel is made of aluminum-nickel-cobalt alloy materials, the saturation degree of a magnetic material part is increased, the proportion of magnetic leakage flux is reduced, the axial size of a rotating shaft is reduced, fan blades and the input end of the rotating shaft are integrated at one end, the shaft sleeve on the rotating shaft is fixedly connected with the rotor, the rotor is fixedly connected with the shaft sleeve through fastening bolts to drive the rotor to rotate and cut magnetic lines, induced electromotive force is generated in a stator coil to generate power generation output, the magnetic leakage path is, induced draft from housing tip wind gap and dispel the heat to the electric elements of generator inner chamber, it is mobile to increase the air, takes away the heat, has both reduced the volume and has guaranteed whole radiating effect again to reach this permanent magnet generator's high reliability, realize the on-vehicle installation, it is big to solve the generator and can occupy the space in the actual work, permanent magnet generator's magnetic structure is various, the magnetic leakage way is very complicated and the great problem of proportion that the magnetic leakage flux accounted for.

Drawings

FIG. 1 is a schematic structural view of the present invention;

Fig. 2 is a side view of the present invention.

In the figure: 1. the motor comprises a shell, 2, a front end cover, 3, a rear end cover, 4, a housing, 5, a fixing sleeve, 6, fan blades, 7, inner hexagon bolts, 8, a flat key, 9, a shaft sleeve, 901, a rotor, 902, a fastening bolt, 10, a stator coil, 11, a first junction box, 12, a second junction box, 1201, a waterproof joint, 13, a rotating shaft, 1301, a groove, 14 and a rotating bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to FIGS. 1-2: a small permanent magnet generator comprises a shell 1, a front end cover 2 is fixedly connected to the left side of the shell 1, a rear end cover 3 is fixedly connected to the right side inner cavity of the shell 1, a housing 4 is fixedly connected to the right side of the shell 1, vent holes are formed in the right side inner cavity of the housing 4, a plurality of groups of vent holes are formed, the vent holes are arranged in a circumferential array along the center of the right side wall of the housing 4, a rotating shaft 13 is inserted into the center of the inner cavity of the shell 1, the left side of the rotating shaft 4 penetrates through the center of the front end cover 2, a mounting groove 1301 is formed in the left side of the rotating shaft 13, a fixing sleeve 5 is sleeved on the rear side of the rotating shaft 13, fan blades 6 are fixedly connected to the fixing sleeve 5, the fan blades 6 are fixedly connected to the fixing sleeve 5 through hexagon socket head bolts 7, a flat key 8 is inserted between the fixing sleeve 5 and the rotating, the magnetic steel is one of diamond, tile shape, square or cylinder shape, the magnetic steel is made of alnico alloy, the rotor 901 is fastened with the shaft sleeve 9 through fastening bolts 902, the inner cavity side wall of the housing 1 is fixedly connected with a stator coil 10, the top of the housing 1 is fixedly connected with a first junction box 11 and a second junction box 12, the first junction box 11 is provided with one, the second junction box 12 is provided with three, and the three second junction boxes 12 are arranged side by side at equal intervals, the inner cavities of the first junction box 11 and the second junction box 12 are both provided with waterproof joints 1201, and the joints of the rotating shaft 13, the front end cover 2 and the rear end cover 3 are both provided with rotating bearings 14.

In summary, when the invention is used, one first junction box 11 is provided, three second junction boxes 12 are provided, and three second junction boxes 12 are arranged side by side at equal intervals, the inner cavities of the first junction box 11 and the second junction box 12 are both provided with the waterproof joints 1201, the waterproof joints 1201 can prevent water, the waterproof performance of the generator is improved, the rotor 901 is embedded with magnetic steel, the magnetic steel is one of diamond, tile and square or cylindrical, the magnetic steel is made of alnico alloy material, the saturation of the magnetic material part is improved, the proportion of leakage flux is reduced, the axial size of the rotating shaft 13 is reduced, the fan blades 6 and the input end of the rotating shaft 13 are integrated at one end, the shaft sleeve 9 on the rotating shaft 13 is fixedly connected with the rotor 901, the rotor 901 is fixedly connected with the shaft sleeve through the fastening bolts 902, the rotor is driven to rotate and cut magnetic lines, induced electromotive force is, make the magnetic leakage way obtain simplifying, and the magnetic leakage rate reduces, drive fan blade rotation simultaneously, induced draft from housing tip wind gap and dispel the heat to the electric elements of generator inner chamber, it is mobile to increase the air, take away the heat, both reduced volume has guaranteed whole radiating effect again, thereby reach this permanent magnet generator's high reliability, realize the on-vehicle installation, it is big to solve the generator and can occupy the space in actual work, permanent magnet generator's magnetic structure is various, the magnetic leakage way is very complicated and the great problem of proportion that the magnetic leakage flux accounted for.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.