CN219513895U - Rotor structure and motor using same - Google Patents
Rotor structure and motor using same Download PDFInfo
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- CN219513895U CN219513895U CN202320435421.1U CN202320435421U CN219513895U CN 219513895 U CN219513895 U CN 219513895U CN 202320435421 U CN202320435421 U CN 202320435421U CN 219513895 U CN219513895 U CN 219513895U
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- motor shaft
- injection molding
- elastic piece
- rotor structure
- inner sleeve
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a rotor structure and a motor using the rotor structure, comprising: a motor shaft; the middle part of the injection molding body penetrates through the motor shaft, and two ends of the motor shaft protrude out of the injection molding body; the magnetic ring is connected to the outer wall of the injection molding body; further comprises: the elastic piece is sleeved on the motor shaft and is arranged in an inner concave cavity formed between the middle part of the injection molding body and the motor shaft, and when the elastic piece is not compressed, one end of the elastic piece protrudes out of the inner concave cavity; the sliding cover body is inserted into the injection molding body along the motor shaft, one end of the sliding cover body is limited by the clamping part on the injection molding body, the sliding cover body abuts against the elastic piece, and when the other end of the sliding cover body is stressed, the sliding cover body moves along the motor shaft and the clamping part to compress the elastic piece; the technical problems that when the rotor rotates, the relative motion friction exists between the gasket and the spring piece, abrasion is easy to cause, noise generated by friction is large, and the effect of adjusting the gap can be influenced after abrasion are solved.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a rotor structure and a motor using the same.
Background
The motor is commonly called a motor, and is an electromagnetic device for converting or transmitting electric energy according to an electromagnetic induction law, and the motor is mainly used for generating driving torque to be used as a power source of an electric appliance or various machines;
the structure of an electric machine generally comprises: the shell comprises a shell seat, a front end cover, a front bearing, a rear end cover, a rear bearing, a stator, a rotor, a cooling fan, a shield and the like;
the existing motor is realized through the gasket and the spring piece when the axial gap of the rotor is adjusted, and in the structure, when the rotor rotates, the gasket and the spring piece have relative motion friction, abrasion is easy to occur, noise generated by friction is large, and the effect of adjusting the gap can be affected after abrasion.
Disclosure of Invention
Aiming at the defects in the related art, the purpose is to provide a rotor structure and a motor using the rotor structure, so as to solve the technical problems that when the rotor in the related art rotates, relative motion friction exists between a gasket and a spring piece, abrasion is easy to cause, noise generated by the friction is large, and the effect of adjusting a gap can be influenced after the abrasion.
The technical scheme for realizing the purpose is as follows: a rotor structure comprising: a motor shaft; the middle part of the injection molding body penetrates through the motor shaft, and two ends of the motor shaft protrude out of the injection molding body; the magnetic ring is connected to the outer wall of the injection molding body and is arranged at intervals with the motor shaft; further comprises:
the elastic piece is sleeved on the motor shaft and is arranged in an inner concave cavity formed between the middle part of the injection molding body and the motor shaft, and when the elastic piece is not compressed, one end of the elastic piece protrudes out of the inner concave cavity;
and the sliding cover body is inserted into the injection molding body along the motor shaft, one end of the sliding cover body is limited by the two clamping parts on the injection molding body, the sliding cover body abuts against the elastic piece, and when the other end of the sliding cover body is stressed, the sliding cover body moves along the motor shaft and the clamping parts to compress the elastic piece.
Further: the injection molding body comprises: an inner sleeve penetrating the motor shaft, wherein the inner concave cavity body is arranged between the inner sleeve and the motor shaft, and the clamping part is arranged on the outer wall of the inner sleeve; an outer sleeve surrounds the inner sleeve, a circular space is arranged between the outer sleeve and the inner sleeve, and the outer wall of the outer sleeve is connected with the magnetic ring; and the two connecting supports are symmetrically arranged in the annular space and separate the annular space, the connecting supports are used for connecting the inner sleeve and the outer sleeve, and the connecting supports and the clamping parts are arranged at intervals.
Further: the length dimension of the inner sleeve is smaller than that of the outer sleeve, and the inner sleeve is inwards concave in the annular space;
the length dimension of the connecting support is smaller than that of the inner sleeve, and the connecting support is concave in the annular space.
Further: the elastic piece is a cylindrical spring.
Further: the section of the concave cavity body is of a circular ring structure and is used for accommodating part of the elastic piece.
Further: the slidable cap includes: the cover part is in a cylindrical structure, a stepped through hole is formed in the middle of the cover part, and a first bevel angle is formed in one side wall of the cover part; the two convex edges are symmetrically connected to the side wall of the other side of the cover part, and the convex edges and the cover part are provided with through sliding grooves;
the cover part and the convex edge move along the motor shaft and the clamping part, the cover part abuts against the elastic piece, and the penetrating sliding groove and the clamping part are limited.
Further: a clearance space is formed between the abutting part of the cover part and the elastic piece and between the cover part and the inner sleeve.
Further: the convex edge is provided with a second oblique angle.
Further: the engagement portion includes: the plane is arranged on the inner sleeve and is arranged at intervals with the connecting support and is used for being contacted with the cover part and the convex edge, and the cover part and the convex edge slide along the plane; and the clamping boss is connected to the plane and used for clamping with the through sliding groove, limiting the slidable cover body, and the clamping boss is provided with a third oblique angle.
An electric machine, comprising: the rotor structure is used.
By adopting the technical scheme, the method has the following beneficial effects: compared with the related art, the motor is provided with a motor shaft, an injection molding body, a magnetic ring, an elastic piece, an inner concave cavity body, a slidable cover body and a clamping part; the elastic piece is arranged in an inner concave cavity formed between the middle part of the injection molding body and the motor shaft, the slidable cover body is spliced with the injection molding body along the motor shaft, one end of the slidable cover body is limited by two clamping parts on the injection molding body, the slidable cover body abuts against the elastic piece, a clearance space is formed between the slidable cover body and the injection molding body, when the other end of the slidable cover body is stressed, the slidable cover body moves along the motor shaft and the clamping parts to compress the elastic piece, the purpose of adjusting the clearance is realized, and the elastic piece and the slidable cover body rotate along with the motor shaft, the injection molding body and the magnetic ring, so that the abrasion is relatively small, and the generated noise is relatively small; therefore, the technical problems that when the rotor rotates, the relative motion friction exists between the gasket and the spring piece, abrasion is easy to occur, noise generated by the friction is large, and the effect of adjusting the gap can be influenced after the abrasion are solved, the abrasion is difficult to occur when the rotor rotates, the generated noise is relatively small, the technical effect of adjusting the gap can not be influenced, and the gap adjusting device has practicability.
Drawings
FIG. 1 is a general sectional view of an electric machine;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1;
FIG. 3 is a schematic view of the structure of the motor shaft, injection molded body, magnetic ring, elastic member, slidable cap, inner cavity and engaging portion;
FIG. 4 is a schematic view of one of the structures of the female cavity, the engaging portion, the motor shaft, the injection molding body and the magnetic ring;
FIG. 5 is a second schematic view of the structure of the female cavity, the engaging portion, the motor shaft, the injection molding body and the magnetic ring;
FIG. 6 is a front view of FIG. 5;
FIG. 7 is a schematic view of a slidable cap;
FIG. 8 is a second schematic view of a slidable cap;
fig. 9 is a schematic diagram of a prior art motor;
FIG. 10 is a partially enlarged schematic illustration of portion B of FIG. 9;
in the figure: 10. the device comprises an elastic piece, 20, a concave cavity body, 30, a slidable cover body, 31, a cover part, 311, a stepped through hole, 312, a first bevel angle, 313, a clearance space, 32, a convex edge, 321, a through chute, 322, a second bevel angle, 40, a clamping part, 41, a plane, 42, a clamping boss, 421, a third bevel angle, 100, a gasket, 200, a spring piece, 300, a motor shaft, 400, an injection molding body, 401, an inner sleeve, 402, an outer sleeve, 403, a connecting support and 500, a magnetic ring.
Detailed Description
In order that the contents may be more readily understood, a further detailed description is provided below, according to specific embodiments, in conjunction with the accompanying drawings;
the utility model provides a rotor structure and use this rotor structure's motor, when having solved the rotor among the correlation technique and rotatory, there is the relative motion frictional condition between gasket and the spring leaf, causes wearing and tearing easily, the noise that the friction produced is great to can influence the technical problem of the effect of adjustment clearance after wearing and tearing, can be made and use, when having reached the rotor and rotatory, be difficult to cause wearing and tearing, the noise that produces is less relatively, and can not influence the positive effect of the effect of adjustment clearance, the overall thinking is as follows:
one embodiment is:
as shown in fig. 1, 2, 3, 4, 5, 6, 9, and 10; a rotor structure and a motor using the same, the rotor structure comprising: a motor shaft 300; an injection molding body 400 having a middle portion penetrating the motor shaft 300, and both ends of the motor shaft 300 protruding outside the injection molding body 400; and a magnetic ring 500 connected to the outer wall of the injection molding body 400 and spaced apart from the motor shaft 300; characterized by further comprising:
an elastic member 10 which is sleeved on the motor shaft 300 and is arranged in the inner concave cavity 20 formed between the middle part of the injection molding body 400 and the motor shaft 300, wherein when the elastic member 10 is not compressed, one end of the elastic member 10 protrudes out of the inner concave cavity 20;
the slidable cover 30 is inserted into the injection molding body 400 along the motor shaft 300, one end of the slidable cover 30 is limited by the two clamping parts 40 on the injection molding body 400, the slidable cover 30 abuts against the elastic member 10, and when the other end of the slidable cover 30 is stressed, the slidable cover 30 moves along the motor shaft 300 and the clamping parts 40 to compress the elastic member 10;
the motor includes: using the rotor structure;
specifically, in practice, a motor shaft 300, an injection molding body 400, a magnetic ring 500, an elastic member 10, an inner cavity body 20, a slidable cover body 30 and an engaging portion 40 are provided; the elastic piece 10 is arranged in the inner concave cavity 20 formed between the middle part of the injection molding body 400 and the motor shaft 300, the slidable cover body 30 is spliced with the injection molding body 400 along the motor shaft 300, one end of the slidable cover body 30 is limited by the two clamping parts 40 on the injection molding body 400, the slidable cover body 30 abuts against the elastic piece 10, a clearance space is formed between the slidable cover body 30 and the injection molding body 400, when the other end of the slidable cover body 30 is stressed, the slidable cover body 30 moves along the motor shaft 300 and the clamping parts 40 to compress the elastic piece 10, the purpose of adjusting the clearance is realized, and the elastic piece 10 and the slidable cover body 30 rotate along with the motor shaft 300, the injection molding body 400 and the magnetic ring 500, so that abrasion is relatively small, and generated noise is relatively small;
another embodiment is:
as shown in fig. 1, 2 and 3; in practice, the elastic member 10 is a cylindrical spring, the elastic member 10 is limited at the inner cavity 20, one end of the elastic member 10 contacts the inner sleeve 401, the other end contacts the slidable cap 30, when the elastic member 10 is compressed, an elastic support is formed, which is favorable for supporting the slidable cap 30, the position between the slidable cap 30 and other components (such as an end cap) can be adjusted, the purpose of adjusting the gap is achieved, and meanwhile, when the slidable cap 30 is worn locally, the elastic force formed by the elastic member 10 can push the slidable cap 30 to be always attached to the other components (such as the end cap), so that the gap adjusting effect is relatively good;
another embodiment is:
as shown in fig. 1, 2, 3, 4, 5, and 6; in practice, the cross section of the concave cavity 20 is in a circular ring structure, and accommodates part of the elastic member 10; the concave cavity body 20 is arranged, so that the elastic piece 10 is conveniently assembled and accommodated, and the limiting guide function is realized, so that the elastic piece 10 is always along a straight line direction when being compressed, the probability of twisting the elastic piece 10 is reduced, and the compression and rebound effects of the elastic piece 10 are relatively good;
another embodiment is:
as shown in fig. 1, 2, 3, 4, 5, 6, 7, 8; in practice, the slidable cap 30 comprises: the cover part 31 is in a cylindrical shape, a stepped through hole 311 is formed in the middle part, and a first bevel angle 312 is formed on one side wall of the cover part 31; two convex edges 32 are symmetrically connected to the side wall of the other side of the cover part 31, and the convex edges 32 and the cover part 31 are provided with a through chute 321;
the cover 31 and the flange 32 move along the motor shaft 300 and the engaging portion 40, the cover 31 abuts against the elastic member 10, and the through chute 321 is limited by the engaging portion 40;
the cover 31 and the flange 32 are integrally formed; a stepped through hole 311 is provided to facilitate the movement of the position along the motor shaft 300 and the injection body 400, and to accommodate the elastic member 10; the provision of the first bevel 312 reduces the contact area of the cover portion 31 with other components (e.g., end caps), has relatively low frictional resistance, and reduces wear;
a gap space 313 is formed between the abutting part of the cover part 31 and the elastic member 10 and the inner sleeve 401; a clearance space 313 is provided, when the other end of the slidable cover body 30 is stressed, the slidable cover body 30 moves along the motor shaft 300 and the clamping part 40, and the elastic piece 10 is compressed, so that the purpose of adjusting the clearance is realized;
the convex edge 32 is provided with a second bevel 322, the second bevel 322 is a C0.2 chamfer, and when contacting with a third bevel 421 (which is a 45 degree chamfer), the bevel forms a guide, so that the through chute 321 on the slidable cover 30 can be smoothly clamped and limited with the clamping part 40;
the engagement portion 40 includes: a flat surface 41 disposed on the inner case 401 and spaced apart from the connection support 403 for contacting the cover 31 and the flange 32, the cover 31 and the flange 32 being slidably positioned along the flat surface 41; the locking boss 42 is connected to the plane 41 and is used for locking with the through chute 321 to limit the slidable cover 30, and the locking boss 42 is provided with a third bevel 421;
the flat surface 41 forms a guide to facilitate the sliding of the cover 30 along the displacement position;
after the clamping boss 42 is matched with the through sliding groove 321, a limit is formed, so that the clamping boss 42 cannot be separated when the slidable cover body 30 is supported by the elastic force of the elastic piece 10, and the reliability of the structure is good;
the third bevel 421 is a 45-degree chamfer, and the bevel forms a guide, so that the penetrating chute 321 on the slidable cover body 30 can be smoothly clamped and limited with the clamping part 40;
another embodiment is:
as shown in fig. 1, 2, 3, 4, 5, and 6; in practice, the motor shaft 300 is a segment of a circular shaft;
the injection molded body 400 includes: an inner sleeve 401 penetrating the motor shaft 300, the inner cavity 20 being provided between the inner sleeve and the motor shaft 300, the outer wall being provided with the engaging portion 40; an outer sleeve 402 surrounding the inner sleeve 401, wherein a circular space is arranged between the outer sleeve 401 and the outer sleeve 402, and the outer wall of the outer sleeve 402 is connected with the magnetic ring 500; and two connection supports 403 symmetrically disposed in the annular space to partition the annular space, wherein the connection supports 403 are used for connecting the inner sleeve 401 and the outer sleeve 402, and the connection supports 403 are disposed at intervals from the engaging portion 40;
the length dimension of the inner sleeve 401 is smaller than that of the outer sleeve 402, and the inner sleeve 401 is concave in the annular space; the length dimension of the connection support 403 is smaller than that of the inner sleeve 401, and the connection support 403 is concave in the annular space;
the connection support 403 includes: sector 403-1; and two strip-shaped blocks 403-2, which are symmetrically connected to the sector-shaped block 403-1 at intervals;
the combination of the inner sleeve 401, the outer sleeve 402 and the connecting support 403, and the control of the length dimension form a reliable support structure, which is beneficial to connecting and arranging other components;
the magnetic ring 500 has a circular ring-shaped structure, the middle part is arranged in a concave space on the outer wall of the outer sleeve 402, and the outer circle protrudes outside the outer sleeve 402, so that the magnetic ring is relatively attractive;
defects of the prior art:
as shown in fig. 9 and 10; the gasket 100 and the spring piece 200 are commonly used structures in the prior art, after the disclosure is seen, a person skilled in the art can directly and unambiguously know how to arrange the gasket 100 and the spring piece 200, and the inventive labor is not required, and excessive tests are not required, because the relative movement friction condition exists between the gasket 100 and the spring piece 200 when the rotor rotates, abrasion is easy to cause, noise generated by the friction is larger, and the gap adjusting effect is influenced after the abrasion, therefore, a rotor structure and a motor using the rotor structure are required;
the working principle is as follows: the elastic piece 10 is arranged in the inner concave cavity 20 formed between the middle part of the injection molding body 400 and the motor shaft 300, the slidable cover body 30 is spliced with the injection molding body 400 along the motor shaft 300, one end of the slidable cover body 30 is limited by the two clamping parts 40 on the injection molding body 400, the slidable cover body 30 abuts against the elastic piece 10, a clearance space is formed between the slidable cover body 30 and the injection molding body 400, when the other end of the slidable cover body 30 is stressed, the slidable cover body 30 moves along the motor shaft 300 and the clamping parts 40 to compress the elastic piece 10, the purpose of adjusting the clearance is realized, and the elastic piece 10 and the slidable cover body 30 rotate along with the motor shaft 300, the injection molding body 400 and the magnetic ring 500, so that abrasion is relatively small, and generated noise is relatively small;
in the description, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate orientations or positional relationships based on the positional relationships described in the drawings, and are merely for convenience of description or simplification of description, and do not indicate a specific orientation that must be possessed; the operation process described in the embodiment is not an absolute use step, and can be adjusted correspondingly in actual use;
unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art; the terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, and likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one of the components, and the terms "a" or "an" and the like, as appropriate for the context of the embodiments;
the above description is only of the preferred embodiments, but the protection scope is not limited thereto, and any person skilled in the art should be able to apply equivalent substitutions or alterations to the disclosed technical solution and the inventive concept thereof within the scope of protection.
Claims (10)
1. A rotor structure comprising: a motor shaft; the middle part of the injection molding body penetrates through the motor shaft, and two ends of the motor shaft protrude out of the injection molding body; the magnetic ring is connected to the outer wall of the injection molding body and is arranged at intervals with the motor shaft; characterized by further comprising:
the elastic piece is sleeved on the motor shaft and is arranged in an inner concave cavity formed between the middle part of the injection molding body and the motor shaft, and when the elastic piece is not compressed, one end of the elastic piece protrudes out of the inner concave cavity;
and the sliding cover body is inserted into the injection molding body along the motor shaft, one end of the sliding cover body is limited by the two clamping parts on the injection molding body, the sliding cover body abuts against the elastic piece, and when the other end of the sliding cover body is stressed, the sliding cover body moves along the motor shaft and the clamping parts to compress the elastic piece.
2. A rotor structure according to claim 1, wherein: the injection molding body comprises: an inner sleeve penetrating the motor shaft, wherein the inner concave cavity body is arranged between the inner sleeve and the motor shaft, and the clamping part is arranged on the outer wall of the inner sleeve; an outer sleeve surrounds the inner sleeve, a circular space is arranged between the outer sleeve and the inner sleeve, and the outer wall of the outer sleeve is connected with the magnetic ring; and the two connecting supports are symmetrically arranged in the annular space and separate the annular space, the connecting supports are used for connecting the inner sleeve and the outer sleeve, and the connecting supports and the clamping parts are arranged at intervals.
3. A rotor structure according to claim 2, characterized in that: the length dimension of the inner sleeve is smaller than that of the outer sleeve, and the inner sleeve is inwards concave in the annular space;
the length dimension of the connecting support is smaller than that of the inner sleeve, and the connecting support is concave in the annular space.
4. A rotor structure according to claim 1, wherein: the elastic piece is a cylindrical spring.
5. A rotor structure according to claim 4, wherein: the section of the concave cavity body is of a circular ring structure and is used for accommodating part of the elastic piece.
6. A rotor structure according to claim 3, wherein: the slidable cap includes: the cover part is in a cylindrical structure, a stepped through hole is formed in the middle of the cover part, and a first bevel angle is formed in one side wall of the cover part; the two convex edges are symmetrically connected to the side wall of the other side of the cover part, and the convex edges and the cover part are provided with through sliding grooves;
the cover part and the convex edge move along the motor shaft and the clamping part, the cover part abuts against the elastic piece, and the penetrating sliding groove and the clamping part are limited.
7. A rotor structure according to claim 6, wherein: a clearance space is formed between the abutting part of the cover part and the elastic piece and between the cover part and the inner sleeve.
8. A rotor structure according to claim 6, wherein: the convex edge is provided with a second oblique angle.
9. A rotor structure according to claim 6, wherein: the engagement portion includes: the plane is arranged on the inner sleeve and is arranged at intervals with the connecting support and is used for being contacted with the cover part and the convex edge, and the cover part and the convex edge slide along the plane; and the clamping boss is connected to the plane and used for clamping with the through sliding groove, limiting the slidable cover body, and the clamping boss is provided with a third oblique angle.
10. An electric motor, characterized in that: comprising the following steps: use of a rotor structure according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320435421.1U CN219513895U (en) | 2023-03-09 | 2023-03-09 | Rotor structure and motor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320435421.1U CN219513895U (en) | 2023-03-09 | 2023-03-09 | Rotor structure and motor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219513895U true CN219513895U (en) | 2023-08-11 |
Family
ID=87526739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320435421.1U Active CN219513895U (en) | 2023-03-09 | 2023-03-09 | Rotor structure and motor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219513895U (en) |
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2023
- 2023-03-09 CN CN202320435421.1U patent/CN219513895U/en active Active
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