A rotor and electric machine

Abstract

The application provides a rotor and a motor, which comprise a rotating shaft, a core is sleeved on the rotating shaft, first and second baffle plates are arranged at the two ends of the core respectively, the core is provided with a through hole penetrating the core in the axial direction, a magnetic steel is accommodated in the through hole, a blocking piece is arranged between the core and the first baffle plate, and an opening corresponding to the through hole is arranged on the first baffle plate; in the projection of the rotor in the axial direction, the magnetic steel is completely located in the range of the opening; when the blocking piece is located at a first position, in the projection of the rotor in the axial direction, the blocking piece at least partially overlaps the magnetic steel; when the blocking piece is located at a second position, in the projection of the rotor in the axial direction, the blocking piece is completely staggered with the magnetic steel, so that the technical problem that the magnetic steel is easily ejected from the core during glue pouring in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electric machines, and particularly relates to a rotor and an electric machine. BACKGROUND

[0002] The structure of the electric machine mainly comprises a rotor, a rotor, a shaft, a machine shell and front and rear end covers, and the rotor is composed of silicon steel sheets and magnetic steels. At present, the rotor of the electric machine is mostly matched with a baffle to ensure the stacking coefficient of the rotor and limit the axial displacement of the magnetic steels and the silicon steel sheets. When the magnetic steels are installed, the magnetic steels need to be moved relative to the iron core. In order to ensure that the magnetic steels can be firmly installed, in the prior art, magnetic steel glue is generally used to fix the magnetic steels and the iron core. The magnetic steel glue is applied to the magnetic steels before the magnetic steels are assembled into the iron core, and then the magnetic steels and the iron core are stuck together so as to prevent relative movement. This method has high flexibility and is suitable for small-batch orders or prototype production. However, the solidified magnetic steel glue will cause poor cleanliness of the surface of the iron core, and a glue cleaning process is needed, and the cost of the magnetic steel glue is high, so the method is rarely used in mass production processes.

[0003] In order to improve the cleanliness of the surface of the iron core and reduce the production process, an improved method is to first assemble the magnetic steels into the iron core, fill the gap between the rotor iron core and the magnetic steels with flowing glue, then install the rotor baffle, and wait for the glue to solidify to ensure the fixation of the rotor iron core and the magnetic steels. However, in this improved method, the magnetic steels will be bounced out of the rotor iron core due to the repulsion effect between the magnetic steels during glue filling, resulting in failure of the rotor glue filling and thus reducing the yield of the entire rotor.

[0004] How to avoid the magnetic steels from being bounced out of the iron core during glue filling and improve the yield of the rotor is a technical problem to be solved at present. SUMMARY

[0005] The application provides a rotor and an electric machine, which can solve the technical problem that the magnetic steels are easily bounced out of the iron core during glue filling in the prior art.

[0006] In one aspect, the application provides a rotor, which comprises a rotating shaft, an iron core sleeved on the rotating shaft, first and second baffles arranged at the two ends of the iron core respectively, a through hole axially penetrating through the iron core, a magnetic steel accommodated in the through hole, a blocking piece arranged between the iron core and the first baffle, and an opening arranged on the first baffle and corresponding to the position of the through hole; in the projection of the rotor in the axial direction, the magnetic steel is completely located within the range of the opening; when the blocking piece is located at a first position, the blocking piece at least partially overlaps the magnetic steel in the projection of the rotor in the axial direction; and when the blocking piece is located at a second position, the blocking piece is completely staggered with the magnetic steel in the projection of the rotor in the axial direction.

[0007] In some embodiments, a limiting plate is arranged between the first baffle and the iron core, and a sliding groove is arranged on the limiting plate, the blocking piece slides in the sliding groove to switch between the first position and the second position.

[0008] In some embodiments, a groove is arranged on one side of the first baffle facing the iron core, and the blocking piece slides in the groove to switch between the first position and the second position.

[0009] In some embodiments, the blocking piece is provided with a clamping part, when the blocking piece is in the first position, the clamping part is in the first state and cooperates with the opening to fix the blocking piece, and when the blocking piece is in the second position, the clamping part is separated from the opening and is in the second state.

[0010] In some embodiments, the clamping part is a spring, a first end of the spring is tangentially connected to the blocking piece, and the blocking piece is provided with a receiving groove, when the spring is in the first state, a second end of the spring protrudes from the blocking piece and is located in the opening, and when the spring is in the second state, the spring is located in the receiving groove.

[0011] In some embodiments, a direction from the first end of the spring to the second end of the spring is a first direction, and a direction opposite to the first direction is a second direction; when the spring is located in the receiving groove, the spring can slide to the second position in the first direction, and the blocking piece can slide to the first position in the second direction.

[0012] In some embodiments, a direction from the first end of the spring to the second end of the spring is a third direction, and a direction opposite to the third direction is a fourth direction; the blocking piece can slide to the second position in the fourth direction, and the blocking piece can slide to the first position in the third direction.

[0013] In some embodiments, the blocking piece is provided with a glue pouring port, and a gap is formed between the magnet steel and the through hole, when the blocking piece is in the first position, the glue pouring port at least partially overlaps with the gap in the projection in the axial direction of the rotor.

[0014] In some embodiments, the rotating shaft is provided with a blocking part, the second baffle abuts against the blocking part, and the first baffle is interference-fitted on the rotating shaft.

[0015] In another aspect, the application also provides an electric machine comprising the rotor.

[0016] The rotor provided by the application blocks the magnetic steel through the slidable blocking piece, when the magnetic steel does not need to be filled with glue in the iron core, only the blocking piece is needed to realize the fixation of the magnetic steel; when the glue needs to be filled, the glue filling work is carried out from the glue filling opening on the blocking piece, since the magnetic steel has been fixed by the blocking piece, the magnetic steel cannot be bounced out from the through hole, and the stability and quickness of the rotor glue filling are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. The drawings in the following description are only exemplary, and other embodiments can be derived from the provided drawings without paying creative labor for those skilled in the art.

[0018] Figure 1 is an exploded view of the rotor of the embodiment of the present application except the rotating shaft;

[0019] Figure 2 is a schematic view of the limiting plate of the embodiment of the present application;

[0020] Figure 3 is a schematic view of the first baffle of the embodiment of the present application;

[0021] Figure 4 is a schematic view of the blocking piece of the embodiment of the present application when the spring piece of the blocking piece is located in the accommodating groove;

[0022] Figure 5 is a schematic view of the blocking piece of the embodiment of the present application when the spring piece of the blocking piece is bounced out of the accommodating groove;

[0023] Figure 6 is a schematic view of the second baffle of the embodiment of the present application;

[0024] Figure 7 is an axial schematic view of the rotor of the embodiment of the present application;

[0025] Figure 8 is an enlarged view of A in Figure 7 of the embodiment of the present application;

[0026] Figure 9 is an enlarged view of B in Figure 7 of the embodiment of the present application;

[0027] Figure 10 is a schematic view of Figure 7 of the embodiment of the present application after removing the first baffle;

[0028] Figure 11 is an enlarged view of C in Figure 10 of the embodiment of the present application;

[0029] Figure 12 is a radial sectional view of a rotor of an embodiment of the present application when a second end of a spring piece faces an inner side of the rotor; Figure 10 is an enlarged view of D in FIG. 1;

[0030] Figure 13 is a radial sectional view of a rotor of an embodiment of the present application when a second end of a spring piece faces an outer side of the rotor;

[0031] Figure 14 is an enlarged view of E in FIG. 1; Figure 13

[0032] Figure 15 is an enlarged view of F in FIG. 1; Figure 13

[0033] Figure 16 is a radial sectional view of a rotor of an embodiment of the present application when a second end of a spring piece faces an outer side of the rotor;

[0034] Figure 17 is an enlarged view of G in FIG. 1; Figure 16

[0035] Figure 18 is a schematic view of a prior art method of locking an iron core on a rotating shaft by a nut;

[0036] Figure 19 is a schematic view of a prior art method of fixing an iron core on a rotating shaft by welding.

[0037] Reference signs are:

[0038] 1, first baffle; 101, opening; 2, second baffle; 201, thimble hole; 3, limiting plate; 301, sliding groove; 4, iron core; 401, through hole; 5, blocking piece; 501, spring piece; 502, accommodating groove; 503, glue pouring port; 504, notch; 6, magnetic steel; 701, stop washer; 702, locking nut; 703, welding ring; 801, first direction 801; 802, second direction 802; 803, third direction 803; 804, fourth direction 804. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative in nature and by no means as any limitation to the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0040] ​​​In the description of the present application, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or positional relationship is generally based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0041] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0042] In addition, it needs to be pointed out that the use of "first", "second" and the like to define parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore it cannot be understood as a limitation on the scope of protection of the present application.

[0043] For reference Figures 1-17 As shown in the drawings, the rotor provided by the present application comprises a rotating shaft, an iron core 4 is sleeved on the rotating shaft, first and second baffles 1 and 2 are respectively arranged at two ends of the iron core 4, the iron core 4 is provided with a through hole 401 penetrating through itself in the axial direction, a magnetic steel 6 is accommodated in the through hole 401, a blocking piece 5 is arranged between the iron core 4 and the first baffle 1, and an opening 101 corresponding to the position of the through hole 401 is arranged on the first baffle 1; in the projection of the rotor in the axial direction, the magnetic steel 6 is completely located within the range of the opening 101; when the blocking piece 5 is located at a first position, in the projection of the rotor in the axial direction, the blocking piece 5 at least partially overlaps with the magnetic steel 6; when the blocking piece 5 is located at a second position, in the projection of the rotor in the axial direction, the blocking piece 5 is completely staggered with the magnetic steel 6.

[0044] A blocking piece 5 is arranged between the iron core 4 and the first baffle 1, the first baffle 1 is provided with an opening 101 corresponding to the through hole 401, the opening 101 is used for inserting the magnetic steel 6 and pouring glue; in the projection of the rotor in the axial direction, the magnetic steel 6 is completely located in the range of the opening 101, so that the magnetic steel 6 can be inserted into the through hole 401 from the opening 101; when the blocking piece 5 is in the second position, in the projection of the rotor in the axial direction, the blocking piece 5 is completely staggered with the magnetic steel 6; in this way, the blocking piece 5 is moved to the second position first, which facilitates the insertion of the magnetic steel 6; after the magnetic steel 6 is inserted, the blocking piece 5 is moved to the first position, in the projection of the rotor in the axial direction, the blocking piece 5 at least partially overlaps with the magnetic steel 6, so that the blocking piece 5 can prevent the magnetic steel 6 from being ejected from the iron core 4. When the rotor is small, the above-mentioned magnetic steel 6 installation and fixing mode is adopted, without pouring glue, the magnetic steel 6 is quickly installed and fixed, and the production efficiency of the rotor is improved. When the rotor is large, due to the blocking of the blocking piece 5, the magnetic steel 6 cannot be ejected from the through hole 401 during the pouring process, the efficiency and stability of the pouring are improved, and the yield of the rotor assembly is improved.

[0045] The "axial direction" of the present application refers to the axial direction of the rotor.

[0046] The magnetic steel 6 is limited by the blocking piece 5, which is convenient and fast; only the blocking piece 5 is needed to fix the magnetic steel 6, and the cost is low.

[0047] Preferably, as shown in Figure 1 , Figures 13-17 The first baffle 1 and the iron core 4 are provided with a limiting plate 3, the limiting plate 3 is provided with a sliding groove 301, and the blocking piece 5 slides in the sliding groove 301 to switch between the first position and the second position.

[0048] By arranging the limiting plate 3, the convenience of sliding the blocking piece 5 between the first position and the second position is improved. Different limiting plates 3 are replaced for different sizes of iron cores 4, which facilitates modular production and improves efficiency.

[0049] Further, as shown in Figure 2 The sliding groove 301 is rectangular, and the blocking piece 5 is a rectangular structure as a whole, and the opposite two sides of the sliding groove 301 limit and guide the blocking piece 5,

[0050] Further, the iron core 4 is composed of silicon steel sheets, and the limiting plate 3 is also a silicon steel sheet.

[0051] In order to facilitate the sliding of the blocking piece 5, a notch 504 for pushing the blocking piece 5 to slide is arranged on the blocking piece 5, and a rod-shaped tool is used to push the notch 504 to make the blocking piece 5 slide.

[0052] Further, in order to facilitate the sliding of the blocking piece 5, the opening 101 is provided with a notch, so that the opening 101 and the notch form a "convex" shape as a whole. Figures 7-9 As shown, when the tool moves against the notch 504, the tool enters the notch, and the blocking piece 5 can be moved more conveniently.

[0053] Preferably, as shown in Figure 1 , Figures 13-17 , one side of the first baffle 1 towards the core 4 is provided with a groove, and the blocking piece 5 slides in the groove to switch between the first position and the second position.

[0054] By providing the groove on the first baffle 1, the blocking piece 5 can slide in a specific range without the need for an additional limiting plate 3, which simplifies the structure of the rotor and is conducive to improving efficiency and realizing the miniaturization of the rotor.

[0055] Preferably, as shown in Figure 4 and Figure 5 , Figures 7-17 , the blocking piece 5 is provided with a clamping portion, when the blocking piece 5 is in the first position, the clamping portion is in the first state and cooperates with the opening 101 to fix the blocking piece 5; when the blocking piece 5 is in the second position, the clamping portion is separated from the opening 101 and is in the second state.

[0056] When the blocking piece 5 is in the first position, the magnetic steel 6 is blocked to prevent the magnetic steel 6 from being ejected from the through hole 401. By providing the clamping portion and cooperating with the opening 101 in the first state, the blocking piece 5 can be fixed, so that the blocking piece 5 can stably limit the magnetic steel 6; the opening 101 can be used to insert the magnetic steel 6 and the pot glue, and can also cooperate with the clamping portion to fix and limit the blocking piece 5. When the blocking piece 5 is in the second position, the clamping portion is separated from the opening 101 and is in the second state, at this time, the blocking piece 5 does not limit the magnetic steel 6.

[0057] Preferably, as shown in Figure 4 and Figure 5 , the clamping portion is a spring 501, the first end of the spring 501 is tangentially connected with the blocking piece 5, and the blocking piece 5 is provided with a receiving groove 502, when the spring 501 is in the first state, the second end of the spring 501 protrudes from the blocking piece 5 and is located in the opening 101, when the spring 501 is in the second state, the spring 501 is located in the receiving groove 502.

[0058] By setting the clamping portion as the elastic piece 501, the clamping portion can automatically pop out from the accommodating groove 502 into the opening 101 and cooperate with the opening 101 to fix and limit the blocking piece 5. The first end of the elastic piece 501 is tangent to the blocking piece 5, which enables the blocking piece 5 to smoothly slide without being stuck.

[0059] Preferably, as shown in Figures 13-15 the direction along the first end of the elastic piece 501 to the second end of the elastic piece 501 is a first direction 801, and the direction opposite to the first direction 801 is a second direction 802; when the elastic piece 501 is accommodated in the accommodating groove 502, the elastic piece 501 can slide to a second position towards the first direction 801, and the blocking piece 5 can slide to a first position towards the second direction 802.

[0060] When the blocking piece 5 slides to the first position, the second end of the elastic piece 501 enters the opening 101 under the action of its own elasticity.

[0061] As shown in Figure 14 the above setting, when the second end of the elastic piece 501 is located in the opening 101, the position where the second end of the elastic piece 501 abuts against the inner wall of the opening 101 is close to the second direction 802, so that the elastic piece 501 completely clamps the blocking piece 5, and the blocking piece 5 cannot move towards the first direction 801 when the elastic piece 501 is not subjected to external force to retract into the accommodating groove 502. In this way, the blocking piece 5 is fixed and limited, and the fixation is relatively firm. Correspondingly, since the direction along the first end of the elastic piece 501 to the second end of the elastic piece 501 is the first direction 801, and the direction opposite to the first direction 801 is the second direction 802, and the first end of the elastic piece 501 is tangent to the blocking piece 5, when the blocking piece 5 slides to the first position towards the second direction 802, the elastic piece 501 can automatically pop out from the accommodating groove 502 into the opening 101, at this time, it can be determined that the blocking piece 5 slides to a predetermined appropriate position, which is accurate and convenient. Since the second end of the elastic piece 501 is towards the second direction 802, the elastic piece 501 can be clamped in the opening 101 to prevent the blocking piece 5 from sliding towards the second position.

[0062] Preferably, as shown in Figures 16-17 the direction along the first end of the elastic piece 501 to the second end of the elastic piece 501 is a third direction 803, and the direction opposite to the third direction 803 is a fourth direction 804; the blocking piece 5 can slide to a second position towards the fourth direction 804, and the blocking piece 5 can slide to a first position towards the third direction 803.

[0063] As shown in Figure 17As shown, the direction along the first end of the elastic sheet 501 to the second end of the elastic sheet 501 is a third direction 803, and the direction opposite to the third direction 803 is a fourth direction 804; the blocking sheet 5 can slide towards the third direction 803 to the first position, which makes it unnecessary to press the elastic sheet 501 into the accommodating groove 502 by external force when the blocking sheet 5 slides towards the second position, and the elastic sheet 501 can automatically return into the accommodating groove 502 under the extrusion of the first baffle 1 when the blocking sheet 5 slides towards the second position, without additional extrusion force to extrude the elastic sheet 501, which is very convenient.

[0064] Further, as shown in Figure 17 As shown, the opening 101 of the first baffle 1 is provided with a chute, and the bottom surface of the chute is a slope surface, which faces the iron core 4 and is opposite to the elastic sheet 501; when the blocking sheet 5 is completely located at the first position, the part of the elastic sheet 501 close to the first end enters the chute after the second end of the elastic sheet 501 pops out of the accommodating groove 502, which has the following effects: on the one hand, the elastic sheet 501 is in the chute, and the chute has a guiding effect on the blocking sheet 5, so that the blocking sheet 5 can move stably; on the other hand, the elastic sheet 501 interacts with the first baffle 1 in the chute, so that the first baffle 1 forms a limiting effect on the elastic sheet 501, which prevents the blocking sheet 5 from moving towards the second position, and further realizes the limiting and fixing of the blocking sheet 5.

[0065] Preferably, as shown in Figure 4 , Figure 5 , Figures 9-12 As shown, the blocking sheet 5 is provided with a glue pouring port 503, and a gap is formed between the magnetic steel 6 and the through hole 401; when the blocking sheet 5 is at the first position, the glue pouring port 503 at least partially overlaps with the gap in the projection on the axial direction of the rotor.

[0066] On the one hand, the blocking sheet 5 blocks the magnetic steel 6 to prevent the magnetic steel 6 from popping out of the through hole 401, and fixes the magnetic steel 6. On the other hand, if the magnetic steel 6 needs to be further sealed and fixed by glue pouring, the glue pouring port 503 is provided and partially overlaps with the gap, so that the glue pouring port 503 can be directly used for glue pouring; since the magnetic steel 6 is blocked by the blocking sheet 5, the magnetic steel 6 will not pop out of the through hole 401 during the glue pouring process, which improves the efficiency and stability of the glue pouring.

[0067] The second baffle 2 is provided with a thimble hole 201 opposite to the magnetic steel 6; when the magnetic steel 6 needs to be removed from the through hole 401, the magnetic steel 6 can be pushed out from the thimble hole 201 of the second baffle 2 by a tool, which is simple and convenient for disassembling the magnetic steel 6, such as when the magnetic pole of the magnetic steel 6 is installed incorrectly, the magnetic steel 6 can be conveniently pushed out through the thimble hole 201 for reinstallation.

[0068] Further, as shown in Figure 4 andFigure 5 As shown, the blocking piece 5 is in the shape of an I, with the solid portion in the middle being used to block the magnetic steel 6 , and the gaps on both sides being the glue injection ports 503 .

[0069] Preferably, the rotating shaft is provided with a blocking portion, the second baffle 2 abuts against the blocking portion, and the first baffle 1 is interference-fitted on the rotating shaft.

[0070] Furthermore, the blocking portion is a step on the shaft, and the second baffle 2 abuts against the step; the first baffle 1 is interference fit with the shaft, thus achieving the fixation of the rotor and the shaft. Compared with the prior art, there is no need to use welding, nuts (such as Figure 18 As shown, it is fixed with a locking washer 701 and a locking nut; Figure 19 As shown, a welding ring is provided and fixed by welding) to fix the iron core 4 on the rotating shaft, thereby saving the internal space of the motor.

[0071] The present invention also provides a motor, comprising a rotor and the rotor.

[0072] In the first step, the second baffle 2 is first installed on the rotating shaft and abutted against the blocking part; in the second step, the iron core 4 is installed, and the through hole 401 on the iron core 4 is opposite to the ejector hole 201 on the second baffle 2; in the third step, the limit plate 3 is installed, and the sliding groove 301 is opposite to the through hole 401; in the fourth step, the blocking piece 5 is placed in the sliding groove 301, and the blocking piece 5 does not block the through hole 401; in the fifth step, the first baffle 1 is installed with interference fit, and the opening 101 on the first baffle 1 is opposite to the through hole 401; in the sixth step, the magnetic steel 6 is installed; in the seventh step, the blocking piece 5 is pushed to the first position; in the seventh step, glue is poured from the glue filling port 503 (if the rotor is large and glue filling is required, glue is poured from the glue filling port 503).

[0073] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0074] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A rotor, comprising a rotating shaft, wherein an iron core (4) is sleeved on the rotating shaft, a first baffle (1) and a second baffle (2) are respectively provided at both ends of the iron core (4), the iron core (4) is provided with a through hole (401) axially penetrating the iron core (4), and a magnetic steel (6) is accommodated in the through hole (401), characterized in that: A blocking plate (5) is provided between the iron core (4) and the first baffle (1), and an opening (101) corresponding to the position of the through hole (401) is provided on the first baffle (1); in the projection in the axial direction of the rotor, the magnetic steel (6) is completely located within the range of the opening (101); when the blocking plate (5) is located in the first position, in the projection in the axial direction of the rotor, the blocking plate (5) and the magnetic steel (6) at least partially overlap; when the blocking plate (5) is located in the second position, in the projection in the axial direction of the rotor, the blocking plate (5) and the magnetic steel (6) are completely staggered; The blocking piece (5) is provided with a glue injection port (503), and a gap is formed between the magnetic steel (6) and the through hole (401); when the blocking piece (5) is in the first position, the glue injection port (503) and the gap at least partially overlap in a projection in the axial direction of the rotor.

2. The rotor according to claim 1, characterized in that A limiting plate (3) is provided between the first baffle (1) and the iron core (4), and a sliding groove (301) is provided on the limiting plate (3), and the blocking piece (5) slides in the sliding groove (301) to switch between the first position and the second position.

3. The rotor according to claim 1, characterized in that A groove is provided on a side of the first baffle (1) facing the iron core (4), and the blocking piece (5) slides in the groove to switch between the first position and the second position.

4. The rotor according to claim 1, characterized in that The blocking piece (5) is provided with a clamping portion. When the blocking piece (5) is located in the first position, the clamping portion is in a first state and cooperates with the opening (101) to fix the blocking piece (5); when the blocking piece (5) is located in the second position, the clamping portion is separated from the opening (101) and is in a second state.

5. The rotor according to claim 4, characterized in that The clamping portion is a spring sheet (501), a first end of the spring sheet (501) is tangentially connected to the blocking sheet (5), and the blocking sheet (5) is provided with a receiving groove (502). When the spring sheet (501) is in the first state, the second end of the spring sheet (501) protrudes from the blocking sheet (5) and is located in the opening (101); when the spring sheet (501) is in the second state, the spring sheet (501) is located in the receiving groove (502).

6. The rotor according to claim 5, characterized in that The direction from the first end of the spring sheet (501) to the second end of the spring sheet (501) is a first direction, and the direction opposite to the first direction is a second direction; when the spring sheet (501) is accommodated in the accommodation groove (502), it can slide toward the first direction to the second position, and the blocking sheet (5) can slide toward the second direction to the first position.

7. The rotor according to claim 5, characterized in that The direction from the first end of the spring sheet (501) to the second end of the spring sheet (501) is the third direction, and the direction opposite to the third direction is the fourth direction; the blocking sheet (5) can slide toward the fourth direction to the second position, and the blocking sheet (5) can slide toward the third direction to the first position.

8. The rotor according to any one of claims 1 to 7, characterized in that: The rotating shaft is provided with a blocking portion, the second baffle (2) abuts against the blocking portion, and the first baffle (1) is interference-fitted on the rotating shaft.

9. A motor, characterized in that: The invention comprises a rotor and the rotor according to any one of claims 1 to 8.

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