CN210156984U - Mounting structure of rotor core and magnet steel - Google Patents
Mounting structure of rotor core and magnet steel Download PDFInfo
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- CN210156984U CN210156984U CN201920782944.7U CN201920782944U CN210156984U CN 210156984 U CN210156984 U CN 210156984U CN 201920782944 U CN201920782944 U CN 201920782944U CN 210156984 U CN210156984 U CN 210156984U
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Abstract
The utility model discloses a mounting structure of rotor core and magnet steel. It includes magnet steel and the rotor core who is stamped the piece stack by the rotor, its characterized in that: through holes are uniformly distributed in the rotor punching sheets, after the rotor core is formed by laminating the rotor punching sheets, the corresponding through holes form a magnetic steel mounting hole, the magnetic steel is inserted into the magnetic steel mounting hole, and the side face where the N pole/S pole of the magnetic steel is located is matched with the side face where the N pole/S pole of the magnetic steel mounting hole is located through a concave-convex structure. The utility model relates to a rationally, the lug and the open slot of through-hole play the location to the magnet steel, the guide effect, in the magnet steel leading-in magnet steel mounting hole of being convenient for, simultaneously, the through-hole passes through the unsmooth cooperation of the recess of sand grip and magnet steel, the installation direction of the utmost point of the N utmost point/S of restriction magnet steel prevents magnet steel magnetic pole direction mistake dress, the installation effectiveness of magnet steel has been improved, the cost of preparation magnet steel installation frock has also been saved, lug and the arc design in a wretched state of concave groove do benefit to the assembly, moreover, the.
Description
Technical Field
The utility model relates to the technical field of electric machines, specifically relate to a mounting structure of rotor core and magnet steel.
Background
In the manufacturing process of the motor, the magnetic steel is put into the rotor core, which always troubles the workshop production. Under the strong magnetic force, not only the magnetic steel can be completely guided into the rotor core notch, but also the N, S poles of the magnetic steel can be correctly oriented in the rotor. This problem affects the production efficiency of the workshop and also brings inconvenience to the operation of workers. In order to solve the problems, a plurality of motor manufacturers can only manufacture tools corresponding to the punching sheets in various shapes so that workers can guide the magnetic steel into the notches of the rotor core, the manufacturing cost of the tools is increased, meanwhile, the efficiency is not improved, and further improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rotor core and magnet steel' S mounting structure that magnet steel is leading-in easy, and the magnet steel N utmost point S is extremely difficult for mistake dress.
The purpose of the utility model is realized like this.
The utility model provides a mounting structure of rotor core and magnet steel, includes magnet steel and the rotor core who is pressed by rotor punching piece stack, its characterized in that: through holes are uniformly distributed in the rotor punching sheets, after the rotor core is formed by laminating the rotor punching sheets, the corresponding through holes form a magnetic steel mounting hole, the magnetic steel is inserted into the magnetic steel mounting hole, and the side face where the N pole/S pole of the magnetic steel is located is matched with the side face where the N pole/S pole of the magnetic steel mounting hole is located through a concave-convex structure.
The technical scheme can be further perfected as follows.
More specifically, a convex block is arranged on one side of an N pole/S pole of a through hole in the rotor punching sheet, after the rotor core is formed by laminating the rotor punching sheets, a long-strip-shaped convex strip is formed by the corresponding convex block, a groove is formed in the side face where the N pole/S pole of the magnetic steel is located, and the long-strip-shaped convex strip is inserted into the groove to form the concave-convex structure matching.
More specifically, an open slot is further formed in one side of the through hole, the magnetic steel is arranged in the open slot, and U-shaped grooves are formed in two ends of the bottom of the open slot respectively.
More specifically, the width of the open slot is equal to that of the magnetic steel, and the distance from the slot bottom of the open slot to the side face of the through hole opposite to the open slot is equal to the thickness of the magnetic steel.
More specifically, two through holes are used as one group, the through holes are in a trapezoidal shape, and the through holes in each group are arranged in a bilateral symmetry mode and form a V shape.
More specifically, the bumps of two adjacent groups of through holes are arranged in opposite positions.
More specifically, the through hole is trapezoidal, and the open slot sets up on the bottom under the through hole.
More specifically, the convex block is an arc-shaped convex block, and the groove corresponding to the magnetic steel is an arc-shaped groove.
The utility model relates to a rationally, the lug and the open slot of through-hole play the location to the magnet steel, the guide effect, in the magnet steel leading-in magnet steel mounting hole of being convenient for, simultaneously, the through-hole passes through the unsmooth cooperation of the recess of sand grip and magnet steel, the installation direction of the utmost point of the N utmost point/S of restriction magnet steel prevents magnet steel magnetic pole direction mistake dress, the installation effectiveness of magnet steel has been improved, the cost of preparation magnet steel installation frock has also been saved, lug and the arc design in a wretched state of concave groove do benefit to the assembly, moreover, the.
Drawings
Fig. 1 is a schematic structural diagram of a rotor core and magnetic steel (rotor laminations are already laminated into the rotor core).
Fig. 2 is a schematic structural diagram of a rotor sheet.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic structural diagram of a set of through holes.
Fig. 5 is a schematic structural diagram of magnetic steel.
Fig. 6 is a schematic view of magnetic poles of magnetic steel (the groove is on the N-pole side of the magnetic steel).
Detailed Description
The invention will be further described with reference to the following drawings and examples:
an embodiment I, refer to and show in fig. 1-6, a mounting structure of rotor core and magnet steel, include magnet steel 2 and the rotor core 1 that is laminated by rotor punching 3, the equipartition has a plurality of through-holes 4 on the rotor punching 3, and through-hole 4 is the annular setting on 3 neighboring edges of rotor punching, and through-hole 4 is similar isosceles trapezoid shape, and through-hole 4 uses two to be a set of, and the through-hole 4 bilateral symmetry in every group sets up to constitute the V style of calligraphy, set up open slot 6 on the bottom under the through-hole 4, open slot 6 bottom both ends are equipped with U-shaped groove 61 respectively, rotor punching 3 the rotor core 1 back that is laminated, magnet steel mounting hole 20 is constituteed to corresponding through-hole 4, magnet steel 2 inserts in the magnet steel mounting hole 20.
The width b1 of the open slot 6 is equal to the width b2 of the magnetic steel 2, the distance h1 from the slot bottom of the open slot 6 to the side face of the through hole 4 opposite to the opening is equal to the thickness h2 of the magnetic steel 2, and the magnetization direction of the magnetic steel 2 is radial magnetization. In the actual manufacturing process, the width b1 of the open slot 6 is equal to the nominal value of the width b2 of the magnetic steel 2, the distance h1 between the slot bottom of the open slot 6 and the side surface of the through hole 4 opposite to the opening of the open slot is equal to the nominal value of the thickness h2 of the magnetic steel 2, and the tolerance fit needs to be clearance fit.
In this embodiment, a bump 5 is disposed on one side of the N pole of each through hole 4, and after the rotor core 1 is laminated by the rotor punching sheets 3, the corresponding bumps 5 form a strip-shaped convex strip, and due to the installation requirement of the motor magnetic steel 2, the two adjacent sets of through holes 4 and the bumps 5 of the through holes 4 are disposed in opposite positions, that is, the N pole and the S pole of the two adjacent sets of magnetic steel 2 are disposed in opposite directions, and a groove 21 is disposed on the side where the N pole of the magnetic steel 2 is located. Therefore, part of the convex blocks 5 are arranged on the through holes 4 opposite to the center of the notch of the open slot 6, the other part of the convex blocks 5 are arranged on the middle part of the bottom of the open slot 6, moreover, the convex blocks 5 are arc-shaped convex blocks 5, the corresponding grooves 21 of the magnetic steel 2 are arc-shaped grooves, and all the edges of the magnetic steel 2 are blunted.
After the rotor core 1 is formed by laminating the rotor punching sheets 3, the groove 21 of the magnetic steel 2 is aligned with the strip-shaped convex strip of the rotor core 1, and the magnetic steel 2 is guided into the magnetic steel mounting hole 20 of the rotor core 1 by external force.
In this embodiment, the shape of each through hole 4 and the shape of each group of through holes 4 are only an optimal solution, and can be changed according to different topological structures of the rotor.
Claims (8)
1. The utility model provides a mounting structure of rotor core and magnet steel, includes magnet steel and the rotor core who is pressed by rotor punching piece stack, its characterized in that: through holes are uniformly distributed in the rotor punching sheets, after the rotor core is formed by laminating the rotor punching sheets, the corresponding through holes form a magnetic steel mounting hole, the magnetic steel is inserted into the magnetic steel mounting hole, and the side face where the N pole/S pole of the magnetic steel is located is matched with the side face where the N pole/S pole of the magnetic steel mounting hole is located through a concave-convex structure.
2. The structure for mounting a rotor core and magnetic steel according to claim 1, wherein: the rotor punching sheet is characterized in that a convex block is arranged on one side of the N pole/S pole of the through hole in the rotor punching sheet, after the rotor core is formed by laminating the rotor punching sheets, the corresponding convex block forms a long-strip-shaped convex strip, a concave groove is formed in the side face where the N pole/S pole of the magnetic steel is located, and the long-strip-shaped convex strip is inserted into the concave groove to form concave-convex structure matching.
3. The structure for mounting a rotor core and magnetic steel according to claim 1, wherein: an open slot is further formed in one side of the through hole, the magnetic steel is arranged in the open slot, and U-shaped grooves are formed in two ends of the bottom of the open slot respectively.
4. The structure of claim 3, wherein: the width of the open slot is equal to that of the magnetic steel, and the distance from the slot bottom of the open slot to the side face of the through hole opposite to the open slot is equal to the thickness of the magnetic steel.
5. The structure for mounting a rotor core and magnetic steel according to claim 2, wherein: the through-holes are divided into two groups, the through-holes are trapezoidal, the through-holes in each group are arranged in bilateral symmetry and form a V shape.
6. The structure of claim 4, wherein: the lugs of the through holes are arranged in opposite positions of the two adjacent groups of through holes.
7. The structure for mounting a rotor core and magnetic steel according to claim 2, wherein: the through hole is isosceles trapezoid shape, and the open slot setting is on the bottom under the through hole.
8. The structure for mounting a rotor core and magnetic steel according to claim 2, wherein: the convex block is an arc convex block, and the groove corresponding to the magnetic steel is an arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920782944.7U CN210156984U (en) | 2019-05-28 | 2019-05-28 | Mounting structure of rotor core and magnet steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920782944.7U CN210156984U (en) | 2019-05-28 | 2019-05-28 | Mounting structure of rotor core and magnet steel |
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| Publication Number | Publication Date |
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| CN210156984U true CN210156984U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920782944.7U Active CN210156984U (en) | 2019-05-28 | 2019-05-28 | Mounting structure of rotor core and magnet steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224513A (en) * | 2019-05-28 | 2019-09-10 | 佛山市顺德区金泰德胜电机有限公司 | A kind of mounting structure of rotor core and magnet steel |
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2019
- 2019-05-28 CN CN201920782944.7U patent/CN210156984U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224513A (en) * | 2019-05-28 | 2019-09-10 | 佛山市顺德区金泰德胜电机有限公司 | A kind of mounting structure of rotor core and magnet steel |
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