CN217508386U - Water-cooling permanent magnet motor rotor punching sheet structure and built-in permanent magnet motor rotor - Google Patents
Water-cooling permanent magnet motor rotor punching sheet structure and built-in permanent magnet motor rotor Download PDFInfo
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- CN217508386U CN217508386U CN202122103494.4U CN202122103494U CN217508386U CN 217508386 U CN217508386 U CN 217508386U CN 202122103494 U CN202122103494 U CN 202122103494U CN 217508386 U CN217508386 U CN 217508386U
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- permanent magnet
- piece body
- punching sheet
- fixing hole
- magnet motor
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model belongs to the technical field of permanent magnet motor equipment, a water-cooling permanent magnet motor rotor punching sheet structure and built-in permanent magnet motor rotor are related to, including towards the piece body, set up the magnetic steel groove towards piece body outer lane, set up the shaft hole towards the center of piece body, the excircle of piece body is the equipartition of interval each other and is set up a plurality of circular arc bellying, is connected through the horizontal part between two adjacent circular arc bellying; the punching sheet body is also provided with a fixing hole. Built-in water-cooling permanent-magnet machine rotor is used for water-cooling permanent-magnet machine, can effectively improve motor work efficiency at the during operation, takes away the heat that the rotor produced to can reduce the noise and the vibration of motor during operation.
Description
Technical Field
The utility model belongs to the technical field of permanent-magnet machine equipment, a water-cooling permanent-magnet machine rotor punching sheet structure and built-in permanent-magnet machine rotor are related to.
Background
In the existing built-in permanent magnet motor, a rotor punching sheet is generally in a full circle type, and a permanent magnet groove and a magnetic isolation magnetic bridge are arranged on the punching sheet. Most of the current industrial permanent magnet motor rotor magnetic circuits are air gap magnetic fields with equal air gap length. The square wave air gap magnetic field contains a large amount of odd harmonics, and the elimination and reduction of the odd harmonics mainly use skewed slots and use stator short-distance windings. But skewed slots and short-pitch windings do not completely eliminate motor odd harmonics. The permanent magnet motor has cogging torque between a stator and a rotor, and the cogging torque directly influences the vibration and the electromagnetic noise of the motor. How to reduce the harmonic wave and the cogging torque of the permanent magnet motor again becomes the goal pursued by various enterprises.
Disclosure of Invention
The utility model aims at the above problem, a water-cooling permanent-magnet machine rotor is towards sheet structure is provided, this towards sheet structure can effectively reduce permanent-magnet machine tooth's socket torque and harmonic to improve motor efficiency, reduce motor noise and vibration simultaneously.
According to the technical scheme of the utility model: the utility model provides a water-cooling permanent-magnet machine rotor punching structure, includes towards the piece body, sets up the magnetic steel groove towards piece body outer lane, sets up the shaft hole towards the center of piece body, its characterized in that: the outer circle of the punching sheet body is uniformly provided with a plurality of arc-shaped convex parts at intervals, and every two adjacent arc-shaped convex parts are connected through a horizontal part;
the punching sheet body is also provided with a fixing hole.
As a further improvement, the circle center of each arc convex part is positioned on the same circumference.
As a further improvement of the present invention, the fixing hole includes a first fixing hole and a second fixing hole, wherein the first fixing hole is located outside the second fixing hole in the radial direction.
The utility model also provides a built-in water-cooling permanent-magnet machine rotor, including foretell towards the piece body, a plurality of screw rods of wearing to establish in the fixed orifices towards the mutual correspondence of piece body, the end plate is established to the both ends of screw rod cover respectively to it is fixed to screw up through the nut, towards the installation axle in the shaft hole of piece body, magnetic steel inslot installation magnet steel.
The utility model provides a built-in water-cooling permanent magnet motor rotor, built-in water-cooling permanent magnet motor rotor is used for water-cooling permanent magnet motor, can effectively improve motor work efficiency at the during operation, takes away the heat that the rotor produced to can reduce the noise and the vibration of motor during operation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the rotor structure of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 and 2 include a screw 1, a nut 2, a rotor core 3, an end plate 4, a punching sheet body 10, an arc-shaped protrusion 11, a horizontal portion 12, a first fixing hole 13, a second fixing hole 14, a vent hole 15, a shaft hole 16, a magnetic steel groove 17, and the like.
As shown in fig. 1 and 2, the utility model relates to a water-cooling permanent magnet motor rotor punching sheet structure, including towards piece body 10, towards piece body 10 adopts the well-known material preparation in this field to form, such as silicon steel sheet etc. the utility model discloses a 50WW350 cold rolled silicon steel sheets punch out towards piece body 10 on the punch press, and towards piece body 10 outer lane sets up magnetic steel groove 17, and towards piece body 10 center sets up shaft hole 16, the excircle of piece body 10 is the interval equipartition each other and is set up a plurality of circular arc protruding portions 11, connects through horizontal part 12 between two adjacent circular arc protruding portions 11; the punching sheet body 10 is further provided with a fixing hole. The outer ring of the punching sheet body 10 is formed into an unequal circle structure by the convex part 11 and the horizontal part 12. According to the specification model towards piece body 10, corresponding quantity can be set to bellying 11 and horizontal part 12, the utility model discloses bellying 11 and horizontal part 12 are provided with 12 groups in the product.
The circle centers of the arc convex parts are positioned on the same circumference. The utility model discloses a towards piece body 10 when actual production, can produce corresponding specification model as required, the utility model provides a specification does, is 7.5mm with the distance L1 of vertical central line near the centre of a circle of the left circular arc bellying of vertical central line 11 in figure 1, is 29mm apart from the distance L2 of horizontal central line. The horizontal portion L4 and the shaft hole 16 were separated by a distance L4 of 192mm from each other, and the horizontal portion L3 was separated by a width of 32 mm.
The fixing holes include a first fixing hole 13, a second fixing hole 14, wherein the first fixing hole 13 is located outside the second fixing hole 14 in the radial direction. The utility model provides an embodiment, two ventilation holes 15 of second fixed orifices 14 interval set up one, and the radial outside of every second fixed orifices 14 sets up a first fixed orifices 13 respectively to set up a first fixed orifices again between two above-mentioned adjacent first fixed orifices 13.
The utility model discloses the product still provides a built-in water-cooling permanent-magnet machine rotor, including a plurality of foretell towards piece body 10, a plurality of fixed orificess that correspond each other towards piece body 10 wear to establish screw rod 1, and end plate 4 is established to screw up fixedly respectively at screw rod 1's both ends to through nut 2, install the magnet steel towards installation axle in the shaft hole of piece body 10, magnet steel groove 17.
The utility model discloses the product can effectively reduce permanent-magnet machine tooth's socket torque and harmonic in practical application to improve motor efficiency, reduce motor noise and vibration simultaneously.
Claims (1)
1. The utility model provides a permanent-magnet machine rotor punching structure, includes towards piece body (10), sets up magnetic steel groove (17) towards piece body (10) outer lane, sets up shaft hole (16), its characterized in that towards the center of piece body (10): the punching sheet is characterized in that a plurality of circular arc convex parts (11) are uniformly distributed at intervals on the excircle of the punching sheet body (10), two adjacent circular arc convex parts (11) are connected through a horizontal part (12), 12 groups of circular arc convex parts (11) and the horizontal part (12) are arranged, the circle center of each circular arc convex part (11) is positioned on the same circumference, the distance L1 between the circle center of the circular arc convex part (11) close to the left side of the vertical central line of the punching sheet body (10) and the vertical central line is 7.5mm, and the distance L2 from the horizontal central line is 29 mm; the central distance L4 between the horizontal part (12) and the shaft hole (16) is 192mm, and the width of the horizontal part (12) is 32 mm;
the punching sheet body (10) is also provided with a fixing hole;
the fixing holes comprise a first fixing hole (13) and a second fixing hole (14), wherein the first fixing hole (13) is positioned on the outer side of the second fixing hole (14) in the radial direction; the second fixing hole (14) is arranged at an interval of two vent holes (15);
the circle centers of the arc convex parts are positioned on the same circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122103494.4U CN217508386U (en) | 2021-09-01 | 2021-09-01 | Water-cooling permanent magnet motor rotor punching sheet structure and built-in permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122103494.4U CN217508386U (en) | 2021-09-01 | 2021-09-01 | Water-cooling permanent magnet motor rotor punching sheet structure and built-in permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217508386U true CN217508386U (en) | 2022-09-27 |
Family
ID=83338230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122103494.4U Active CN217508386U (en) | 2021-09-01 | 2021-09-01 | Water-cooling permanent magnet motor rotor punching sheet structure and built-in permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217508386U (en) |
-
2021
- 2021-09-01 CN CN202122103494.4U patent/CN217508386U/en active Active
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