CN219592254U - Light permanent magnet generator for automobile - Google Patents

Abstract

The utility model discloses a lightweight permanent magnet generator for automobiles, which comprises a casing, a front end cover, a rear end cover, a rotating shaft, a rotor iron core, permanent magnet steel, a stator iron core and a stator winding. The end covers are respectively arranged at the front end and the rear end of the casing, and the rotating shaft is arranged inside the casing, the front end cover and the rear end cover and extends to the outside of the front end cover; There are a plurality of closed first hollow slots and second hollow slots, and the stator core and rotor core are hollowed out, which can reduce the weight of the product, save materials, save costs, reduce the amount of materials used, and reduce the overall weight. At the same time, the generator shell is made of aluminum material, which is light in weight and high in strength as the shell of the motor, which realizes the lightweight design of the automotive permanent magnet generator and ensures that the generator as a whole can meet the use requirements It can function normally and has the characteristics of light weight.

Description

A lightweight permanent magnet generator for automobiles

technical field

The utility model relates to the technical field of automobile generators, in particular to a lightweight permanent magnet generator for automobiles.

Background technique

At present, with the improvement of automotive electrical equipment and the increasing power consumption, generators, as the key components of automotive power systems, have become a hot research direction. The permanent magnet generator is mainly composed of a permanent magnet rotor, a stator, front and rear end covers, and a casing. It has the characteristics of low copper consumption and high reliability, and has attracted extensive attention from the industry.

The existing Chinese patent publication number is CN104617699A, which discloses a 200kW lightweight generator, which mainly includes a front end cover, a stator, a rotor, a rear end cover and an exciter stator; The rotor is installed on the front end cover and the rear end cover; the front end cover and the rear end cover are made of cast aluminum alloy, the stator core of the exciter with windings and the rear end cover form the exciter stator, and the span of the stator winding is 3/4 knots The pitch and coil type adopt double-layer stacked windings with unequal turns. The generator has no box and is a single support structure. The technical effects of the invention are: simple structure, convenient manufacture, suitable for 200kW lightweight generators, and reducing the weight of the generator while satisfying the performance. In the actual use of the above-mentioned generator, the purpose of light weight is achieved by fixing the front and rear end covers on the stator and omitting the casing. However, the working environment of the generator for automobiles is harsh, and this method may cause serious magnetic flux leakage and failure. High rate and other consequences, do not meet the needs of use.

For this reason, we propose a lightweight permanent magnet generator for automobiles.

Utility model content

In order to make up for the above deficiencies, the utility model provides a lightweight permanent magnet generator for automobiles which overcomes the above-mentioned technical problems or at least partially solves the above-mentioned problems.

In order to solve the above technical problems, the utility model provides the following technical solutions: a lightweight permanent magnet generator for automobiles, including a casing, a front end cover, a rear end cover, a rotating shaft, a rotor core, permanent magnet steel, a stator core and The stator winding, the front end cover and the rear end cover are respectively arranged at the front end and the rear end of the casing, the rotating shaft is arranged inside the casing, the front end cover and the rear end cover and extends to the outside of the front end cover, and the rotor core sleeve Set on the rotating shaft, the permanent magnet steel is embedded on the outer wall of the rotor core, the stator core is set on the inner wall of the casing, the stator winding is embedded inside the stator core, the rotor iron The inside of the core and the stator core are respectively opened with a closed first hollow slot and a second hollow slot, and the front end and the rear end of the rotor core are respectively connected with a front connecting plate and a rear connecting plate, and the front connecting plate and the A plurality of weight-reducing grooves are equally spaced on the rear connecting plate.

As a preferred technical solution of a lightweight permanent magnet generator for automobiles of the present invention, a plurality of grooves are opened on the outer wall of the rotor core, and each permanent magnet steel is embedded in a corresponding groove .

As a preferred technical solution of a light-weight permanent magnet generator for automobiles of the present invention, an inlay groove is opened inside the stator core, and the stator winding is arranged inside the inlay groove.

As a preferred technical solution of a light-weight permanent magnet generator for automobiles of the present utility model, a plurality of thin frames are evenly spaced and equidistantly distributed on the front connection plate and the rear connection plate, and the front connection plate and the rear connection plate Axis center holes are opened at the center corresponding to the rotating shaft, and a plurality of positioning holes are equidistantly distributed on the front connecting plate and the rear connecting plate.

As a preferred technical solution of a light-weight permanent magnet generator for automobiles of the present invention, both sides of the bottom of the casing are connected to organic bases, and a bottom groove is opened at the bottom of each of the bases, and each of the machine bases The bases are all provided with hollow grooves, and each of the bases is provided with mounting holes.

As a preferred technical solution of a light-weight permanent magnet generator for automobiles of the present invention, the casing, the front end cover and the rear end cover are all made of aluminum-type materials.

As a preferred technical solution of a light-weight permanent magnet generator for automobiles of the present invention, a plurality of cooling grooves are equally spaced on the rear end cover, and a plurality of fan blades are connected to the rotating shaft in the rear end cover. .

Compared with the prior art, the beneficial effects that the utility model can achieve are:

1. By opening a plurality of closed first hollow slots and second hollow slots inside the stator core and rotor core of the generator, the hollow design of the stator core and rotor core can reduce the weight of the product. It saves materials and costs, reduces the amount of materials used, and reduces the overall weight. At the same time, the generator casing is made of aluminum-shaped materials. Aluminum-shaped materials are used as the casing of the motor with light weight and high strength, realizing permanent magnet power generation in automobiles. The lightweight design of the generator ensures that the generator as a whole can operate normally under the premise of meeting the use requirements, and has the characteristics of lightweight;

2. By setting the front connection plate and the rear connection plate thinner, with multiple weight-reducing grooves, and using thin frames for reinforcement, the structure is stronger, which can effectively reduce the weight of the front connection plate and the rear connection plate, and meet the requirements of power generation. It further realizes the lightweight design of automotive permanent magnet generators.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram one of the present utility model;

Fig. 2 is the three-dimensional structure schematic diagram two of the present utility model;

Fig. 3 is the schematic diagram of the front view section structure of the utility model;

Fig. 4 is a schematic diagram of the three-dimensional structure of the rear connecting plate of the present invention.

Among them: 1. Shell; 2. Front end cover; 3. Rear end cover; 4. Rotary shaft; 5. Machine base; 6. Rotor core; 7. Groove; 8. Permanent magnet steel; 9. Stator core; 10. Stator winding; 11. Mosaic groove; 12. First hollow groove; 13. Second hollow groove; 14. Front connecting plate; 15. Rear connecting plate; Thin frame; 19, positioning hole; 20, bottom groove; 21, installation hole; 22, cooling groove; 23, fan blade; 24, hollow groove.

Detailed ways

In order to make the technical means, creative features, goals and effects of the utility model realized easy to understand, the utility model will be further elaborated below in conjunction with specific examples, but the following examples are only preferred embodiments of the utility model, not all . Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present utility model. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial sources.

Example:

Please refer to Figures 1-4, a lightweight permanent magnet generator for automobiles, including a housing 1, a front end cover 2, a rear end cover 3, a rotating shaft 4, a rotor core 6, a permanent magnet steel 8, and a stator core 9 and the stator winding 10, the front end cover 2 and the rear end cover 3 are respectively arranged at the front end and the rear end of the casing 1, and the rotating shaft 4 is arranged inside the casing 1, the front end cover 2 and the rear end cover 3 and extends to the outside of the front end cover 2, The rotor core 6 is set on the rotating shaft 4, the permanent magnet steel 8 is embedded on the outer wall of the rotor core 6, the stator core 9 is set on the inner wall of the casing 1, and the stator winding 10 is embedded in the stator core 9. Inside, the interior of the rotor core 6 and the stator core 9 are respectively opened with a closed first hollow slot 12 and a second hollow slot 13, and the front end and rear end of the rotor core 6 are respectively connected with a front connection plate 14 and a rear connection plate. The plate 15, the front connecting plate 14 and the rear connecting plate 15 are all equidistantly provided with a plurality of weight reducing grooves 17.

In other embodiments, a plurality of grooves 7 are formed on the outer wall of the rotor core 6 , and each permanent magnet steel 8 is embedded in a corresponding groove 7 , and the permanent magnet steel 8 is connected by the grooves 7 .

In other embodiments, the inside of the stator core 9 is provided with an inlaid groove 11, and the stator winding 10 is arranged inside the inlaid groove 11, and the inlaid groove 11 is provided so that the stator winding 10 is embedded in the inside of the stator core 9, reducing the overall volume .

In other embodiments, a plurality of thin frames 18 are evenly spaced and equidistantly distributed on the front connecting plate 14 and the rear connecting plate 15, and the centers of the front connecting plate 14 and the rear connecting plate 15 are provided with shaft centers corresponding to the rotating shafts 4. The hole 16, the front connection plate 14 and the rear connection plate 15 are equidistantly distributed with a plurality of positioning holes 19, and the positioning holes 19 are used to cooperate with screws to connect with the rotor core 6.

In other embodiments, both sides of the bottom of the shell 1 are connected to the organic base 5, and the bottom of each base 5 is provided with a bottom groove 20, and each base 5 is provided with a hollow groove 24, and each base 5 Mounting holes 21 are provided on the top, and the housing 1 is supported by the machine base 5 . At the same time, the design of the bottom groove 20 and the hollow groove 24 reduces the weight of the machine base 5 .

In other embodiments, the casing 1, the front end cover 2 and the rear end cover 3 are all made of aluminum-type materials, the generator casing 1 is made of aluminum-type materials, and the aluminum-type materials are used as the casing of the generator with light weight and high strength, realizing The lightweight design of the automotive permanent magnet generator ensures that the generator as a whole can operate normally under the premise of meeting the use requirements, and has the characteristics of lightweight.

In other embodiments, a plurality of cooling grooves 22 are equally spaced on the rear end cover 3, and a plurality of fan blades 23 are connected to the rotating shaft 4 inside the rear end cover 3, and the rotating shaft 4 is used to drive the plurality of fan blades 23 to Rotate to discharge the heat generated in the casing 1.

When the utility model is used, the running of the automobile drives the generator rotor iron core 6 to rotate, thereby making the rotor iron core 6, the permanent magnet steel 8, the front connection disc 14 and the rear connection disc 15 rotate, and the rotor iron core 6 and the permanent magnet steel 8 The rotation of the stator generates a spatial rotating magnetic field, and the stator winding 10 generates a three-phase alternating current under the action of the spatial rotating magnetic field. Through the adjustment of the voltage regulator controller, the three-phase alternating current is converted into direct current, and the output direct current is used to charge the power supply and vehicle electrical appliances Power supply, by opening a plurality of closed first hollow slots 12 and second hollow slots 13 inside the rotor core 6 and stator core 9 of the generator, hollowing out the interior of the rotor core 6 and stator core 9 , can reduce the weight of the product, save materials, save costs, reduce the amount of materials used, and reduce the overall weight. At the same time, the generator shell 1 is made of aluminum material, which is light in weight and strong in strength as the shell of the generator High, realizes the lightweight design of the automobile permanent magnet generator, ensures that the generator as a whole can operate normally under the premise of meeting the use requirements, and has the characteristics of light weight. At the same time, by setting the front connecting plate 14 and the rear connecting plate 15 relatively Thin, with multiple weight-reducing grooves 17, and reinforced by thin frames 18, the structure is stronger, which can effectively reduce the weight of the front connection plate and the rear connection plate, meet the functional requirements of the generator, and further realize the permanent magnet power generation of automobiles Lightweight design of the machine.

In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the utility model Under the premise of the spirit and scope, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (8)

1. A lightweight permanent magnet generator for automobiles, comprising a casing (1), a front end cover (2), a rear end cover (3), a rotating shaft (4), a rotor core (6), a permanent magnet steel (8 ), the stator core (9) and the stator winding (10), are characterized in that: the front end cover (2) and the rear end cover (3) are respectively arranged on the front end and the rear end of the housing (1), and the rotating shaft (4) Set inside the shell (1), front end cover (2) and rear end cover (3) and extend to the outside of the front end cover (2), the rotor core (6) is sleeved on the rotating shaft (4) Above, the permanent magnet steel (8) is embedded on the outer wall of the rotor core (6), the stator core (9) is set on the inner wall of the casing (1), and the stator winding (10) is embedded Inside the stator core (9), the inside of the rotor core (6) and the stator core (9) are respectively opened with a closed first hollow slot (12) and a second hollow slot (13), so The front end and the rear end of the rotor core (6) are respectively connected with a front connection plate (14) and a rear connection plate (15), and multiple a weight-reducing groove (17); a plurality of grooves (7) are provided on the outer wall of the rotor core (6), and each permanent magnet steel (8) is embedded in a corresponding groove (7) Inside; both sides of the bottom of the shell (1) are connected to organic bases (5), and the bottom of each of the bases (5) is provided with a bottom groove (20), and each of the bases (5) Hollow slots (24) are provided, and mounting holes (21) are provided on each of the bases (5). 2. A lightweight permanent magnet generator for automobiles according to claim 1, characterized in that: the inside of the stator core (9) is provided with a mosaic groove (11), and the stator winding (10) is set Inside the mosaic groove (11). 3. A kind of lightweight permanent magnet generator for automobiles according to claim 1 or 2, characterized in that: the front connection plate (14) and the rear connection plate (15) are evenly spaced and equidistantly distributed with a plurality of Thin frame (18), the corresponding rotating shaft (4) place at the center of described front connecting plate (14) and rear connecting plate (15) all has axis hole (16), described front connecting plate (14) and A plurality of positioning holes (19) are equidistantly distributed on the rear connecting plate (15). 4. A lightweight permanent magnet generator for automobiles according to claim 1 or 2, characterized in that: the casing (1), the front end cover (2) and the rear end cover (3) are all made of aluminum type materials production. 5. A lightweight permanent magnet generator for automobiles according to claim 3, characterized in that: the housing (1), the front end cover (2) and the rear end cover (3) are all made of aluminum materials . 6. A kind of lightweight permanent magnet generator for automobile according to claim 1, 2 or 5, characterized in that: the rear end cover (3) is equidistantly provided with a plurality of cooling grooves (22), so A plurality of fan blades (23) are connected to the rotating shaft (4) in the rear end cover (3). 7. A kind of lightweight permanent magnet generator for automobiles according to claim 3, characterized in that: the rear end cover (3) is equidistantly provided with a plurality of cooling grooves (22), and the rotating shaft ( 4) A plurality of fan blades (23) are connected in the rear end cover (3). 8. A kind of lightweight permanent magnet generator for automobiles according to claim 4, characterized in that: said rear end cover (3) is equidistantly provided with a plurality of cooling grooves (22), said rotating shaft ( 4) A plurality of fan blades (23) are connected in the rear end cover (3).