CN215528725U - Rotor segmented skewed pole structure of permanent magnet synchronous motor - Google Patents
Rotor segmented skewed pole structure of permanent magnet synchronous motor Download PDFInfo
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- CN215528725U CN215528725U CN202120874664.6U CN202120874664U CN215528725U CN 215528725 U CN215528725 U CN 215528725U CN 202120874664 U CN202120874664 U CN 202120874664U CN 215528725 U CN215528725 U CN 215528725U
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- pole structure
- skewed pole
- threaded
- permanent magnet
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a rotor sectional skewed pole structure of a permanent magnet synchronous motor, which comprises: a rotor core and a fixing ring; the channel steel is arranged on the rotor iron core; the rotor magnetic steels are all arranged on the fixing ring; the fixing rings are fixedly connected with threaded pieces, the inner parts of the threaded pieces are connected with screw rods through threaded threads, and one ends of the screw rods are fixedly connected with screwing pieces; three threaded holes are formed in the channel steel. According to the rotor segmented skewed pole structure of the permanent magnet synchronous motor, the twelve pairs of rotor magnetic steels can be arranged inside the channel steel at one time through the arranged fixing rings, the trouble of installing the rotor magnetic steels one by one is avoided, the operation is simple, the use is convenient, the workload of assembling the segmented skewed poles is greatly reduced, and the rotor segmented skewed pole structure is worthy of being popularized and used in a large range.
Description
Technical Field
The utility model relates to the technical field of permanent magnet synchronous motors, in particular to a rotor segmented skewed pole structure of a permanent magnet synchronous motor.
Background
The permanent magnet synchronous motor is composed of a stator, a rotor, an end cover and the like. The stator is basically the same as a common induction motor, and a lamination structure is adopted to reduce iron loss during the operation of the motor. The rotor can be made into solid or laminated by lamination. The armature winding can adopt a concentrated whole-pitch winding, and can also adopt a distributed short-pitch winding and an unconventional winding.
When the permanent magnet synchronous motor rotor is of a segmented oblique pole structure, the cogging torque of the motor can be effectively reduced, the control precision and the torque stability of the motor are improved, and the NVH performance of the whole vehicle is improved.
In the correlation technique, in the assembling process of segmenting the oblique pole, the rotor magnetic steel is required to be installed in a channel steel groove of a rotor core according to the specified magnetic pole direction, the rotor magnetic steel magnetic poles of six sections of rotor cores are guaranteed to be distributed the same, wherein, when the rotor magnetic steel is installed on the six sections of rotor cores, the rotor magnetic steel is required to be installed one by one, and because the number of the rotor magnetic steel is more, when the rotor magnetic steel is installed on the six sections of rotor cores, the assembly is time-consuming and labor-consuming.
Therefore, it is necessary to provide a rotor segmented skewed pole structure of a permanent magnet synchronous motor to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotor segmented skewed pole structure of a permanent magnet synchronous motor, which solves the technical problem that assembly is time-consuming and labor-consuming when rotor magnetic steels are installed on six sections of rotor cores due to the fact that the number of rotor magnetic steels is large.
In order to solve the above technical problem, the present invention provides a rotor segmented skewed pole structure of a permanent magnet synchronous motor, comprising: a rotor core and a fixing ring;
the channel steel is arranged on the rotor iron core;
the rotor magnetic steel, a plurality of the rotor magnetic steel all set up in gu fixed ring is last.
Preferably, the fixing ring is fixedly connected with a threaded part, the threaded part is connected with a screw rod through a thread, and one end of the screw rod is fixedly connected with a screwing part.
Preferably, three threaded holes are formed in the channel steel, and one end of the screw rod penetrates through the threaded holes and extends into the threaded holes.
Preferably, the number of pairs of the rotor magnetic steels is twelve, and the twelve pairs of the rotor magnetic steels are annularly distributed on the outer surface of the fixed ring.
Preferably, the rotor core is provided with a first positioning key, a second positioning key and a third positioning key respectively.
Preferably, the ratio of the thickness of the fixing ring to the thickness of the screw is 1: 1.
Preferably, a rotating part is arranged between the two rotor magnetic steels, and one side of the rotating part is in threaded connection with the inside of the fixing ring.
Compared with the related art, the rotor segmented skewed pole structure of the permanent magnet synchronous motor provided by the utility model has the following beneficial effects:
the utility model provides a rotor segmented skewed pole structure of a permanent magnet synchronous motor, which can install twelve pairs of rotor magnetic steels in channel steel at one time through the arranged fixing rings without the trouble of installing the rotor magnetic steels one by one, so that the operation is simple, the use is convenient, the workload of assembling the segmented skewed poles is greatly reduced, and the rotor segmented skewed pole structure is worthy of being popularized and used in a large range.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a rotor segmented skewed pole structure of a permanent magnet synchronous motor provided by the utility model;
FIG. 2 is a schematic structural view of the retaining ring shown in FIG. 1 after disassembly;
FIG. 3 is a schematic perspective view of the retaining ring shown in FIG. 1;
FIG. 4 is a schematic view of a backside structure of the retaining ring shown in FIG. 3;
FIG. 5 is an enlarged partial view of the structure at A shown in FIG. 4;
fig. 6 is a schematic structural diagram of a rotor segmented skewed pole structure of a permanent magnet synchronous motor according to a second embodiment of the present invention;
fig. 7 is a partially enlarged structural view of a portion B shown in fig. 6.
Reference numbers in the figures: 1. rotor core, 2, solid fixed ring, 3, channel-section steel, 4, rotor magnet steel, 5, screw, 6, lead screw, 7, revolve and twist the piece, 8, screw hole, 9, first navigation key, 10, second navigation key, 11, third navigation key, 12, rotating member.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
First embodiment
Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is a schematic structural diagram of a first embodiment of a rotor segmented skewed pole structure of a permanent magnet synchronous motor according to the present invention; FIG. 2 is a schematic structural view of the retaining ring shown in FIG. 1 after disassembly; FIG. 3 is a schematic perspective view of the retaining ring shown in FIG. 1; FIG. 4 is a schematic view of a backside structure of the retaining ring shown in FIG. 3; fig. 5 is a partially enlarged schematic view of a portion a shown in fig. 4. Permanent magnet synchronous machine rotor segmentation oblique polar structure includes:
a rotor core 1 and a stator ring 2;
the channel steel 3 is arranged on the rotor iron core 1;
The fixing rings 2 are fixedly connected with threaded pieces 5, the interiors of the threaded pieces 5 are connected with screw rods 6 through threaded threads, and one ends of the screw rods 6 are fixedly connected with screwing pieces 7;
through the lead screw 6 that sets up and revolve wrong piece 7, can install solid fixed ring 2 for rotor magnet steel 4 on solid fixed ring 2 installs in channel-section steel 3.
Three threaded holes 8 are formed in the channel steel 3, and one end of the screw rod 6 penetrates through the threaded holes 8 and extends into the threaded holes 8;
the threaded hole 8 is matched with the screw rod 6.
The number of pairs of the rotor magnetic steels 4 is twelve, and twelve pairs of the rotor magnetic steels 4 are annularly distributed on the outer surface of the fixed ring 2;
the number of pairs of the rotor magnetic steel 4 can be increased or decreased according to specific use requirements.
A first positioning key 9, a second positioning key 10 and a third positioning key 11 are respectively arranged on the rotor iron core 1;
referring to fig. 1, three positioning keys with angles of 118 °, 120 °, and 122 ° are disposed at an inner circle of a rotor core 1, the three positioning keys have the same structure, and a visible surface of the three positioning keys, which is clockwise distributed according to 118 °, 120 °, and 122 °, is defined as a front surface, the three positioning keys are respectively defined as a first positioning key 9, a second positioning key 10, and a third positioning key 11 according to an increasing order of angles, the front surface of the first positioning key 9 is labeled "1/6", the back surface of the second positioning key 10 is labeled "3/4", and the front surface of the third positioning key 11 is labeled "2/5".
The ratio of the thickness of the fixing ring 2 to the thickness of the screw member 5 is 1: 1;
after the fixing ring 2 is arranged on the rotor core 1, the situation that the threaded part 5 exceeds the thickness of the fixing ring 2 is avoided, and therefore the next section of the rotor core 1 is inconvenient to install;
when the fixing ring 2 is mounted on the rotor core 1, the fixing ring 2 is made flush with the rotor core 1.
The working principle of the rotor segmented skewed pole structure of the permanent magnet synchronous motor provided by the utility model is as follows:
when installing rotor magnet steel 4 on rotor core 1, at first, align the one end of lead screw 6 with screw hole 8 respectively, then through revolving wrong piece of twisting, the one end of drive lead screw 6 is rotatory and then arrives the inside of screw hole 8 for solid fixed ring 2 can fixed mounting on rotor magnet steel 4, and solid fixed ring 2 on the rotor magnet steel 4 can be fixed in the inside of channel-section steel 3, thereby accomplish the installation to rotor magnet steel 4.
Compared with the related art, the rotor segmented skewed pole structure of the permanent magnet synchronous motor provided by the utility model has the following beneficial effects:
through the solid fixed ring 2 that sets up, can once only install twelve pairs of rotor magnet steel 4 in the inside of channel-section steel 3, need not to install the trouble of rotor magnet steel 4 one by one for easy operation, convenient to use, and alleviateed the work load when the oblique utmost point of assembly segmentation greatly, be worth using widely on a large scale.
Second embodiment
Referring to fig. 6 to 7, based on the rotor segmented skewed pole structure of the permanent magnet synchronous motor provided in the first embodiment of the present application, a second embodiment of the present application provides another rotor segmented skewed pole structure of the permanent magnet synchronous motor. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the difference of the rotor segmented skewed pole structure of the permanent magnet synchronous motor provided by the second embodiment of the present application lies in: a rotating part 12 is arranged between the two rotor magnetic steels 4, and one side of the rotating part 12 is in threaded connection with the inside of the fixed ring 2;
an external thread is arranged on the rotating part 12, an internal thread is arranged in the fixed ring 2, and the rotating part 12 rotates to enter the fixed ring 2, so that the rotor magnetic steel 4 is installed and fixed;
the rotor magnetic steel 4 can be disassembled through the arranged rotating piece 12, so that the number of the rotor magnetic steel 4 can be flexibly adjusted, and the use is convenient;
when rotor magnetic steel 4 in the fixed ring 2 is damaged, the rotor magnetic steel 4 is detached through the rotation of the rotating piece 12.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a permanent magnet synchronous motor rotor segmentation skewed pole structure which characterized in that includes:
a rotor core and a fixing ring;
the channel steel is arranged on the rotor iron core;
the rotor magnetic steel, a plurality of the rotor magnetic steel all set up in gu fixed ring is last.
2. The rotor segmented skewed pole structure of the PMSM according to claim 1, wherein each of the fixing rings is fixedly connected with a threaded member, the interior of the threaded member is connected with a lead screw through a threaded thread, and one end of the lead screw is fixedly connected with a screwing member.
3. The rotor segmented skewed pole structure of the PMSM according to claim 2, wherein three threaded holes are formed in the channel steel, and one end of the lead screw penetrates through the threaded holes and extends into the threaded holes.
4. The rotor segmented skewed pole structure of claim 1, wherein the number of pairs of rotor magnets is twelve, and the twelve pairs of rotor magnets are annularly distributed on the outer surface of the stator ring.
5. The rotor segmented skewed pole structure of claim 1, wherein the rotor core has a first positioning key, a second positioning key, and a third positioning key.
6. The rotor segmented skewed pole structure of claim 2, wherein the ratio of the thickness of said retaining ring to the thickness of said threaded member is 1: 1.
7. The rotor segmented skewed pole structure of PMSM according to claim 1, wherein a rotating member is arranged between two said rotor magnetic steels, and one side of said rotating member is threaded inside said fixed ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120874664.6U CN215528725U (en) | 2021-04-26 | 2021-04-26 | Rotor segmented skewed pole structure of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120874664.6U CN215528725U (en) | 2021-04-26 | 2021-04-26 | Rotor segmented skewed pole structure of permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215528725U true CN215528725U (en) | 2022-01-14 |
Family
ID=79802862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120874664.6U Expired - Fee Related CN215528725U (en) | 2021-04-26 | 2021-04-26 | Rotor segmented skewed pole structure of permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215528725U (en) |
-
2021
- 2021-04-26 CN CN202120874664.6U patent/CN215528725U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |