CN117767618A - High-power variable frequency motor rotor punching sheet - Google Patents
High-power variable frequency motor rotor punching sheet Download PDFInfo
- Publication number
- CN117767618A CN117767618A CN202311836327.8A CN202311836327A CN117767618A CN 117767618 A CN117767618 A CN 117767618A CN 202311836327 A CN202311836327 A CN 202311836327A CN 117767618 A CN117767618 A CN 117767618A
- Authority
- CN
- China
- Prior art keywords
- rotor punching
- punching sheet
- variable frequency
- frequency motor
- power variable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004080 punching Methods 0.000 title claims abstract description 114
- 238000009423 ventilation Methods 0.000 claims abstract description 51
- 230000000694 effects Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to the technical field of variable frequency motors and discloses a high-power variable frequency motor rotor punching sheet, wherein first key grooves are symmetrically formed in the inner side of a shaft hole, circular first vent holes are symmetrically formed in the outer side of the shaft hole in the outer side of a rotor punching sheet main body, four first rotor punching sheet grooves are symmetrically formed in the outer side of the first vent holes in the outer side of the rotor punching sheet main body, and fixing grooves are formed among the four first rotor punching sheet grooves; the inside of shaft hole still can symmetrically set up the second keyway, the outside of rotor punching main part has set up quadrilateral second ventilation hole in the outside symmetry of shaft hole, the connection piece is installed to the inside symmetry of second ventilation hole, the edge of rotor punching main part has evenly seted up the second rotor punching groove along circumference. According to the invention, through the arrangement of the vent holes with different shapes, the ventilation effect can be improved, and the ventilation and heat dissipation of the high-power variable frequency motor during working are facilitated.
Description
Technical Field
The invention relates to the technical field of variable frequency motors, in particular to a high-power variable frequency motor rotor punching sheet.
Background
The variable frequency motor is a motor which continuously operates within the rated speed range of 10% -100% with 100% rated load under the standard environmental condition, the temperature rise of the variable frequency motor does not exceed the rated allowable value of the motor, the variable frequency motor comprises a rotor and a stator, the rotor is a rotating part in the motor, and the variable frequency motor is formed by stacking silicon steel sheets (rotor punching sheets).
The rotor punching sheets are key parts of the motor, are metal sheets fixed on the motor rotor and are usually made of high-conductivity materials (such as copper and aluminum) and are arranged at the connecting part of the motor rotor for conducting current and bearing electromagnetic force, the punching sheets serve as core elements for improving the efficiency of the motor, the precision and the quality of the punching sheets are directly related to the performance and the stability of the motor, and the high-quality rotor punching sheets can provide good current conduction and heat resistance, reduce the heat effect and the loss inside the motor, and further prolong the service life of the motor.
The Chinese patent discloses a high-power variable frequency motor and a special rotor punching sheet (grant publication No. CN 215221849U) thereof, and the technology of the patent ensures that the motor has higher starting torque by designing a rotor punching sheet groove with a specific structure, ensures that the motor can be started at low frequency, can weaken the influence of higher harmonic waves of a frequency converter on the motor vibration, and can reduce the motor noise; in addition, be equipped with the ventilation hole on the rotor punching, can accelerate the ventilation heat dissipation of motor when high, low frequency, effectively reduce the temperature rise of motor, increase the life of motor.
However, there is still a disadvantage in view of the patent, and although the purpose of ventilation and heat dissipation can be achieved in the patent, as can be seen from the accompanying drawings of the patent, the ventilation holes of the patent are formed only in a circular shape, so that the effect of ventilation and heat dissipation is poor, and the number of punching grooves is large, so that the rigidity is poor, the vibration effect is poor, and the work of the motor is affected. Therefore, a person skilled in the art provides a rotor punching sheet of a high-power variable frequency motor to solve the problems in the background art.
Disclosure of Invention
The invention aims to provide a high-power variable frequency motor rotor punching sheet so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the rotor punching sheet of the high-power variable frequency motor comprises a rotor punching sheet main body, wherein a shaft hole for installing a rotating shaft is formed in the middle of the rotor punching sheet main body, first key grooves are symmetrically formed in the inner side of the shaft hole, circular first vent holes are symmetrically formed in the outer side of the shaft hole in the outer side of the rotor punching sheet main body, four first rotor punching sheet grooves are symmetrically formed in the outer side of the first vent holes in the outer side of the rotor punching sheet main body, and fixing grooves are formed among the four first rotor punching sheet grooves;
the inside of shaft hole still can symmetrically set up the second keyway, the outside of rotor punching main part has set up quadrilateral second ventilation hole in the outside symmetry of shaft hole, the connection piece is installed to the inside symmetry of second ventilation hole, the edge of rotor punching main part has evenly seted up the second rotor punching groove along circumference.
As still further aspects of the invention: the top radius R1 of the first rotor punching slot is 2.5mm, and the bottom radius R2 of the first rotor punching slot is 4.5mm.
As still further aspects of the invention: the center of the top of the first rotor punching sheet groove and the center of the bottom of the first rotor punching sheet groove are positioned on the same vertical line, and the height of the first rotor punching sheet groove is 30mm.
As still further aspects of the invention: the first ventilation holes are formed in round holes, and the diameter of each first ventilation hole is 12mm.
As still further aspects of the invention: eight first ventilation holes are symmetrically arranged at least on the outer portion of the rotor punching sheet main body, and circle centers of the first ventilation holes are distributed on the circumference with the diameter of 30mm.
As still further aspects of the invention: the radius R1 of the top of the fixed groove is 1.5mm, and the radius R2 of the bottom of the first rotor punching groove is 3.5mm.
As still further aspects of the invention: the center of the top of the fixed groove and the center of the bottom of the fixed groove are on the same vertical line, and the height of the fixed groove is 16mm.
As still further aspects of the invention: the inner radius R1 of the second ventilation hole is 12mm, the outer radius R1 of the second ventilation hole is 20mm, and the inner circle center of the second ventilation hole is the same as the outer circle center of the second ventilation hole and the circle center of the shaft hole.
As still further aspects of the invention: the inner radius R1 of the second rotor punching sheet groove is 40mm, the outer radius R2 of the second rotor punching sheet groove is 60mm, and the inner circle center of the second rotor punching sheet groove is the same as the outer circle center of the second rotor punching sheet groove.
As still further aspects of the invention: the second rotor punching grooves are symmetrically formed in the outer portion of the rotor punching main body at least, and the height H1 of the second rotor punching grooves is 30mm.
Compared with the prior art, the invention has the beneficial effects that: the rotor punching sheet has the advantages of less raw material consumption, low manufacturing cost and convenient processing and manufacturing, can improve the ventilation effect by arranging the ventilation holes with different shapes, is beneficial to ventilation and heat dissipation of the high-power variable frequency motor during working, can improve the service life of the motor, ensures the rotor punching sheet main body to have very high torque and strong rigidity by arranging the first rotor punching sheet groove and the second rotor punching sheet groove with different shapes, ensures the quick starting of the motor, can reduce the influence of motor vibration, can reduce noise and improve the service life of the motor rotor punching sheet.
Drawings
FIG. 1 is a schematic structural diagram of a rotor sheet of a high-power variable frequency motor;
FIG. 2 is a schematic diagram of a first rotor sheet slot in a rotor sheet of a high-power variable frequency motor;
FIG. 3 is a schematic structural view of a fixed slot in a rotor sheet of a high-power variable frequency motor;
fig. 4 is a schematic structural diagram of a rotor punching body of a rotor punching of a high-power variable-frequency motor;
FIG. 5 is a schematic diagram of a second rotor sheet slot in a rotor sheet of a high-power variable frequency motor;
fig. 6 is a schematic structural diagram of a second ventilation hole in a rotor sheet of a high-power variable frequency motor.
In the figure: 1. a rotor punching body; 101a, a first vent; 102a, a first rotor punching slot; 103a, a fixing groove; 104a, a first keyway;
101b, a second ventilation hole; 101b1, a connecting piece; 102b, a second rotor punching slot; 104b, second keyway.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The utility model provides a high-power variable frequency motor rotor punching, includes rotor punching main part 1, and rotor punching main part 1's middle part is equipped with the shaft hole that is used for installing the pivot, and first keyway 104a has been seted up to the inboard symmetry in shaft hole, and circular shape first ventilation hole 101a has been seted up to the outside of rotor punching main part 1 in the outside symmetry in shaft hole, and four first rotor punching grooves 102a have been seted up to the outside of rotor punching main part 1 in the outside symmetry in first ventilation hole 101a, are provided with fixed slot 103a between four first rotor punching grooves 102 a;
wherein, the top radius R1 of the first rotor punching slot 102a is 2.5mm, and the bottom radius R2 of the first rotor punching slot 102a is 4.5mm;
further, the center of the top of the first rotor punching slot 102a and the center of the bottom of the first rotor punching slot 102a are on the same vertical line, and the height of the first rotor punching slot 102a is 30mm;
wherein the first ventilation hole 101a is formed by a round hole, and the diameter of the first ventilation hole 101a is 12mm;
further, at least eight first ventilation holes 101a are symmetrically formed in the outer portion of the rotor punching main body 1, and circle centers of the first ventilation holes 101a are distributed on the circumference with the diameter of 30mm;
wherein, the top radius R1 of the fixed slot 103a is 1.5mm, and the bottom radius R2 of the first rotor punching slot 102a is 3.5mm;
further, the center of the top of the fixed slot 103a is on the same vertical line with the center of the bottom of the fixed slot 103a, and the height of the fixed slot 103a is 16mm.
Example two
The inner side of the shaft hole can be symmetrically provided with a second key groove 104b, the outer side of the rotor punching main body 1 is symmetrically provided with a quadrilateral second ventilation hole 101b, the inner side of the second ventilation hole 101b is symmetrically provided with a connecting sheet 101b1, and the edge of the rotor punching main body 1 is uniformly provided with a second rotor punching groove 102b along the circumferential direction.
Wherein, the inner radius R1 of the second ventilation hole 101b is 12mm, the outer radius R1 of the second ventilation hole 101b is 20mm, and the inner circle center of the second ventilation hole 101b is the same as the outer circle center of the second ventilation hole 101b and the circle center of the shaft hole;
further, the inner radius R1 of the second rotor sheet slot 102b is 40mm, the outer radius R2 of the second rotor sheet slot 102b is 60mm, and the inner center of the second rotor sheet slot 102b is the same as the outer center of the second rotor sheet slot 102 b;
the second rotor punching slots 102b are at least eight symmetrically arranged outside the rotor punching main body 1, and the height H1 of the second rotor punching slots 102b is 30mm.
The rotor punching sheet has the advantages of less raw material consumption, low manufacturing cost and convenient processing and manufacturing, can improve the ventilation effect by arranging the ventilation holes with different shapes, is beneficial to ventilation and heat dissipation of the high-power variable frequency motor during working, can improve the service life of the motor, ensures the rotor punching sheet main body to have very high torque and strong rigidity by arranging the first rotor punching sheet groove and the second rotor punching sheet groove with different shapes, ensures the quick starting of the motor, can reduce the influence of motor vibration, can reduce noise and improve the service life of the motor rotor punching sheet.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The utility model provides a high-power variable frequency motor rotor punching, includes rotor punching main part (1), its characterized in that, the middle part of rotor punching main part (1) is equipped with the shaft hole that is used for installing the pivot, first keyway (104 a) have been seted up to the inboard symmetry in shaft hole, circular shape first ventilation hole (101 a) have been seted up to the outside symmetry in shaft hole of rotor punching main part (1), and four first rotor punching grooves (102 a) have been seted up to the outside symmetry in first ventilation hole (101 a) of rotor punching main part (1), are provided with fixed slot (103 a) between four first rotor punching grooves (102 a);
the inside of shaft hole still can symmetrically set up second keyway (104 b), quadrilateral second ventilation hole (101 b) have been seted up to the outside of rotor punching main part (1) in the outside symmetry in shaft hole, connection piece (101 b 1) are installed to the inside symmetry in second ventilation hole (101 b), second rotor punching groove (102 b) have evenly been seted up along circumference to the edge of rotor punching main part (1).
2. The high-power variable frequency motor rotor punching sheet according to claim 1, characterized in that a top radius R1 of the first rotor punching sheet groove (102 a) is 2.5mm, and a bottom radius R2 of the first rotor punching sheet groove (102 a) is 4.5mm.
3. The high-power variable frequency motor rotor punching sheet according to claim 1, wherein the top circle center of the first rotor punching sheet groove (102 a) and the bottom circle center of the first rotor punching sheet groove (102 a) are on the same vertical line, and the height of the first rotor punching sheet groove (102 a) is 30mm.
4. The rotor punching sheet of a high-power variable frequency motor according to claim 1, wherein the first ventilation hole (101 a) is formed as a round hole, and the diameter of the first ventilation hole (101 a) is 12mm.
5. The rotor punching sheet of the high-power variable frequency motor according to claim 1, wherein at least eight first ventilation holes (101 a) are symmetrically formed in the outer portion of the rotor punching sheet main body (1), and circle centers of the first ventilation holes (101 a) are distributed on the circumference with the diameter of 30mm.
6. A high power variable frequency motor rotor punching according to claim 1, characterized in that the top radius R1 of the fixed slot (103 a) is 1.5mm and the bottom radius R2 of the first rotor punching slot (102 a) is 3.5mm.
7. The high-power variable frequency motor rotor punching sheet according to claim 1, wherein the top circle center of the fixed groove (103 a) and the bottom circle center of the fixed groove (103 a) are on the same vertical line, and the height of the fixed groove (103 a) is 16mm.
8. The rotor punching sheet of a high-power variable frequency motor according to claim 1, wherein the inner radius R1 of the second ventilation hole (101 b) is 12mm, the outer radius R1 of the second ventilation hole (101 b) is 20mm, and the inner center of the second ventilation hole (101 b) is identical to the outer center of the second ventilation hole (101 b) and the center of the shaft hole.
9. The rotor punching sheet of the high-power variable frequency motor according to claim 1, wherein the inner radius R1 of the second rotor punching sheet groove (102 b) is 40mm, the outer radius R2 of the second rotor punching sheet groove (102 b) is 60mm, and the inner circle center of the second rotor punching sheet groove (102 b) is the same as the outer circle center of the second rotor punching sheet groove (102 b).
10. The rotor punching sheet of the high-power variable frequency motor according to claim 1, wherein at least eight second rotor punching sheet grooves (102 b) are symmetrically formed in the outer portion of the rotor punching sheet main body (1), and the height H1 of the second rotor punching sheet grooves (102 b) is 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311836327.8A CN117767618A (en) | 2023-12-28 | 2023-12-28 | High-power variable frequency motor rotor punching sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311836327.8A CN117767618A (en) | 2023-12-28 | 2023-12-28 | High-power variable frequency motor rotor punching sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117767618A true CN117767618A (en) | 2024-03-26 |
Family
ID=90318069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311836327.8A Pending CN117767618A (en) | 2023-12-28 | 2023-12-28 | High-power variable frequency motor rotor punching sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117767618A (en) |
-
2023
- 2023-12-28 CN CN202311836327.8A patent/CN117767618A/en active Pending
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