CN212012297U - High-efficiency high-bearing unbalanced load permanent magnet synchronous generator device - Google Patents
High-efficiency high-bearing unbalanced load permanent magnet synchronous generator device Download PDFInfo
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- CN212012297U CN212012297U CN202020780778.XU CN202020780778U CN212012297U CN 212012297 U CN212012297 U CN 212012297U CN 202020780778 U CN202020780778 U CN 202020780778U CN 212012297 U CN212012297 U CN 212012297U
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Abstract
The utility model discloses a high-efficiency high-bearing unbalanced load permanent magnet synchronous generator device, which comprises a rotating shaft, wherein the left end and the right end of the rotating shaft are respectively connected with a front end cover and a rear end cover through a front rolling bearing and a rear rolling bearing; the rotor assembly is connected to the rotating shaft, the stator assembly is connected to the inner wall of the heat dissipation shell, the rotor punching sheet comprises a rotor punching sheet body, the left side and the right side of the rotating shaft are respectively connected with a front damping plate and a rear damping plate, and damping strips are respectively arranged on the front damping plate and the rear damping plate. The utility model has simple structure, the motor completely compensates the defect of too large voltage change when the phase-lacking operation is carried out when the phase-lacking load or the phase-lacking load is carried out, and when the phase-lacking load is extremely carried out, the voltage regulation rate is only 5 percent, thus completely meeting the use requirement; the damping bars and the damping plates are added in the pole arc wrap angles of the V-shaped magnetic circuit, so that the influence of voltage sudden change and armature reaction during open-phase operation is effectively inhibited.
Description
Technical Field
The utility model relates to an energy technical field especially involves a high-efficient high unbalance loading permanent magnet synchronous generator device that bears.
Background
At present, a three-phase synchronous generator cannot bear the phase-lack operation when a one-phase or two-phase load is lacked, and particularly when the applied single-phase load is a load half of the rated power, the voltage of the generator is extremely unbalanced, so that the generator cannot be used satisfactorily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide a simple structure, convenient operation, practical high-efficient high unbalance loading permanent magnet synchronous generator device of bearing.
The utility model discloses a realize through following mode:
a high-efficiency high-bearing unbalanced load permanent magnet synchronous generator device comprises a rotating shaft, wherein the left end and the right end of the rotating shaft are respectively connected with a front end cover and a rear end cover through a front rolling bearing and a rear rolling bearing; a heat dissipation shell is connected between the front end cover and the rear end cover; the rotating shaft is connected with a rotor assembly, and the rotor assembly is formed by overlapping a plurality of rotor punching sheets; the inner wall of the heat dissipation shell is connected with a stator assembly matched with the rotor assembly, and a winding wire of the stator assembly is electrically connected with a wiring board in a wiring box arranged on the heat dissipation shell;
the rotor punching sheet comprises a rotor punching sheet body, wherein a mounting hole matched with a rotating shaft is formed in the rotor punching sheet body, a plurality of magnetic steel groove groups for mounting magnetic steel are formed in the rotor punching sheet body in an annular array mode, and each magnetic steel groove group consists of two magnetic steel grooves;
a plurality of damping strip mounting groove groups are formed on the rotor punching sheet body in an annular array mode; each group of damping strip mounting groove group consists of five damping strip mounting grooves which are arranged at intervals;
the left side and the right side of the rotating shaft are respectively connected with a front damping plate and a rear damping plate, and the front damping plate and the rear damping plate are respectively provided with a front damping strip connecting hole and a rear damping strip connecting hole which are matched with the damping strip mounting grooves; and damping strips penetrate through the front damping strip connecting holes, the damping strip mounting grooves and the rear damping strip connecting holes.
Furthermore, a limiting groove is formed on the mounting hole.
Furthermore, the two magnetic steel grooves are V-shaped, and an included angle of 160 degrees is formed between the two magnetic steel grooves.
Furthermore, the shortest distance between the two magnetic steel grooves is 2 mm; and the distance between the outer end of the magnetic steel groove and the outer ring of the rotor punching sheet body is 1.6 mm.
Further, the angle between two adjacent damping strip mounting grooves is 11 degrees.
Furthermore, each damping strip mounting groove is provided with a 1.5 mm wide open groove for reducing the gear harmonic.
Furthermore, the right end of the rotating shaft is connected with a fan blade through a check ring for a shaft; the heat dissipation shell is connected with a fan cover, and the fan cover covers the fan blades in the heat dissipation shell.
Further, the front damping plate, the rear damping plate and the damping strips are all made of aluminum materials.
The beneficial effects of the utility model reside in that: the motor completely compensates the defect of phase-lacking operation when one-phase or two-phase load is absent, and the voltage odd-change rate is only 5% when one-phase load is absent extremely, so that the use requirement is completely met; the damping bars and the damping plates are added in the pole arc wrap angles of the V-shaped magnetic circuit, so that the influence of voltage sudden change and armature reaction during open-phase operation is effectively inhibited.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the rotor sheet structure of the present invention;
FIG. 3 is a schematic diagram of a front damping plate structure of the present invention;
fig. 4 is a schematic diagram of the structure of the rear damping plate of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
a high-efficiency high-bearing unbalanced load permanent magnet synchronous generator device is shown in figures 1-4 and comprises a rotating shaft 34, wherein the left end and the right end of the rotating shaft 34 are respectively connected with a front end cover 1 and a rear end cover 20 through a front rolling bearing 6 and a rear rolling bearing 21; a heat dissipation shell 35 is connected between the front end cover 1 and the rear end cover 20; the left end and the right end of the rotating shaft 34 respectively extend to the outer sides of the front end cover 1 and the rear end cover 20; the right end of the rotating shaft 34 is connected with a fan blade 24 through a shaft retainer ring 25; in order to prevent the fan blades 24 from damaging the objects during operation, the heat dissipation shell 35 is connected with a fan housing 22, and the fan housing 22 covers the fan blades 24; the rotating shaft 34 is connected with a rotor assembly 19, and the rotor assembly 19 is formed by overlapping a plurality of rotor sheets 191; the inner wall of the heat dissipation shell 35 is connected with a stator assembly 16 matched with the rotor assembly 19, the stator assembly 16 is a common technology in the field, and the structure of the stator assembly is not described in detail; the winding wires of the stator assembly 16 are electrically connected to the terminal block 11 in the terminal box provided on the heat-dissipating case 35.
Specifically, the rotor punching sheet 191 comprises a rotor punching sheet body 1911, a mounting hole 1912 matched with the rotating shaft 34 is formed in the rotor punching sheet body 1911, and a limiting groove 1913 is formed in the mounting hole 1912; a plurality of magnetic steel groove groups 1914 for mounting magnetic steel are formed on the rotor punching sheet body 1911 in an annular array manner, and the magnetic steel groove groups 1914 are four groups; each magnetic steel groove group 1914 consists of two magnetic steel grooves 1915, the two magnetic steel grooves 1915 are in a V shape, and an included angle of 160 degrees is formed between the two magnetic steel grooves 1915; the shortest distance between the two magnetic steel grooves 1915 is 2 mm; the distance between the outer end of the magnetic steel groove 1915 and the outer ring of the rotor punching sheet body 1911 is 1.6 mm.
Specifically, a plurality of damping strip mounting groove groups 1916 are formed on the rotor punching sheet body 1911 in an annular array manner; the damping strip mounting groove group 1916 is located in the pole arc wrap angle of the magnetic steel groove group 1914; the damping strip mounting groove groups 1916 are four groups, and each damping strip mounting groove group 1916 consists of five damping strip mounting grooves 1917 arranged at intervals; the angle between two adjacent damping strip mounting grooves 1917 is 11 degrees; each damping strip mounting groove 1917 is opened with a 1.5 mm wide open groove 1918 that reduces the gear harmonic.
Specifically, the left side and the right side of the rotating shaft 34 are respectively connected with a front damping plate 33 and a rear damping plate 31, and the front damping plate 33 and the rear damping plate 31 are respectively provided with a front damping bar connecting hole 331 and a rear damping bar connecting hole 311 which are matched with the damping bar mounting groove 1917; damping strips 32 penetrate through the front damping strip connecting holes 331, the damping strip mounting grooves 1917 and the rear damping strip connecting holes 311; the front damping plate 33, the rear damping plate 31 and the damping strips 32 are all made of aluminum materials.
In the embodiment, the influence of voltage abrupt change and armature reaction in open-phase operation is effectively inhibited by adding the damping strips and the damping plates in the pole arc wrap angles of the V-shaped magnetic circuit.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high-efficient high unbalance loading permanent magnet synchronous generator device that bears which characterized in that: the device comprises a rotating shaft (34), wherein the left end and the right end of the rotating shaft (34) are respectively connected with a front end cover (1) and a rear end cover (20) through a front rolling bearing (6) and a rear rolling bearing (21); a heat dissipation shell (35) is connected between the front end cover (1) and the rear end cover (20); the rotating shaft (34) is connected with a rotor assembly (19), and the rotor assembly (19) is formed by overlapping a plurality of rotor punching sheets (191); the inner wall of the heat dissipation shell (35) is connected with a stator assembly (16) matched with the rotor assembly (19), and a winding wire of the stator assembly (16) is electrically connected with a wiring board (11) arranged in a wiring box on the heat dissipation shell (35);
the rotor punching sheet (191) comprises a rotor punching sheet body (1911), mounting holes (1912) matched with a rotating shaft (34) are formed in the rotor punching sheet body (1911), a plurality of magnetic steel groove groups (1914) used for mounting magnetic steel are formed in the rotor punching sheet body (1911) in an annular array mode, and each magnetic steel groove group (1914) is composed of two magnetic steel grooves (1915);
a plurality of damping strip mounting groove groups (1916) are formed on the rotor punching sheet body (1911) in an annular array mode; each group of damping strip mounting groove group (1916) consists of five damping strip mounting grooves (1917) arranged at intervals;
the left side and the right side of the rotating shaft (34) are respectively connected with a front damping plate (33) and a rear damping plate (31), and the front damping plate (33) and the rear damping plate (31) are respectively provided with a front damping bar connecting hole (331) and a rear damping bar connecting hole (311) which are matched with the damping bar mounting groove (1917); and damping strips (32) penetrate through the front damping strip connecting holes (331), the damping strip mounting grooves (1917) and the rear damping strip connecting holes (311).
2. The high efficiency high unbalance load bearing permanent magnet synchronous generator device according to claim 1, wherein: the mounting hole (1912) is formed with a limiting groove (1913).
3. The high efficiency high unbalance load bearing permanent magnet synchronous generator device according to claim 1, wherein: the two magnetic steel grooves (1915) are V-shaped, and an included angle of 160 degrees is formed between the two magnetic steel grooves (1915).
4. The high efficiency high unbalance load bearing permanent magnet synchronous generator device according to claim 1, wherein: the shortest distance between the two magnetic steel grooves (1915) is 2 mm; the distance between the outer end of the magnetic steel groove (1915) and the outer ring of the rotor punching sheet body (1911) is 1.6 millimeters.
5. The high efficiency high unbalance load bearing permanent magnet synchronous generator device according to claim 1, wherein: the angle between two adjacent damping strip mounting grooves (1917) is 11 degrees.
6. The high efficiency high unbalance load bearing permanent magnet synchronous generator device according to claim 1, wherein: each damping strip mounting groove (1917) is provided with a 1.5 mm wide open groove (1918) for reducing a harmonic.
7. The high efficiency high unbalance load bearing permanent magnet synchronous generator device according to claim 1, wherein: the right end of the rotating shaft (34) is connected with a fan blade (24) through a shaft retainer ring (25); the heat dissipation shell (35) is connected with a fan cover (22), and the fan blades (24) are covered in the fan cover (22).
8. The high efficiency high unbalance load bearing permanent magnet synchronous generator device according to claim 1, wherein: the front damping plate (33), the rear damping plate (31) and the damping strips (32) are all made of aluminum materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020780778.XU CN212012297U (en) | 2020-05-12 | 2020-05-12 | High-efficiency high-bearing unbalanced load permanent magnet synchronous generator device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020780778.XU CN212012297U (en) | 2020-05-12 | 2020-05-12 | High-efficiency high-bearing unbalanced load permanent magnet synchronous generator device |
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| CN212012297U true CN212012297U (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111478471A (en) * | 2020-05-12 | 2020-07-31 | 宁德时代电机科技有限公司 | High-efficiency high-bearing unbalanced load permanent magnet synchronous generator device |
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- 2020-05-12 CN CN202020780778.XU patent/CN212012297U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111478471A (en) * | 2020-05-12 | 2020-07-31 | 宁德时代电机科技有限公司 | High-efficiency high-bearing unbalanced load permanent magnet synchronous generator device |
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