CN216390623U

CN216390623U - Structure improved motor rotor punching sheet structure

Info

Publication number: CN216390623U
Application number: CN202122997628.1U
Authority: CN
Inventors: 蔡锦杰
Original assignee: TAIZHOU YANGCHUN ELECTRIC MOTOR CO Ltd
Current assignee: TAIZHOU YANGCHUN ELECTRIC MOTOR CO Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-26
Anticipated expiration: 2031-11-30

Abstract

The utility model provides a motor rotor punching sheet structure with an improved structure, and belongs to the technical field of motors. It has solved the current not good problem of rotor punching radial strength. The structure-improved motor rotor punching sheet structure is an integrated structure and comprises a ring body and a circle of sheet bodies arranged outside the ring body, wherein each sheet body comprises an inner end and an outer end which are distributed along the radial direction of the ring body; the connecting bodies and the strip bodies are alternately distributed along the circumferential direction of the ring body; the outer ends of two adjacent connectors are connected through a connecting strip arranged between the two connectors. This structurally improved motor rotor punching structure is high in radial compressive strength.

Description

Structure improved motor rotor punching sheet structure

Technical Field

The utility model belongs to the technical field of motors, and relates to a motor rotor punching sheet, in particular to a structure of the motor rotor punching sheet with an improved structure.

Background

The existing motor generally comprises a machine shell, a stator arranged in the machine shell, a rotor shaft arranged in the stator in a penetrating mode and a rotor arranged between the stator and the rotor shaft, and the rotor is fixedly connected with the rotor shaft. The rotor is generally formed by stacking a plurality of rotor sheets.

The existing rotor punching sheet is as disclosed in Chinese patent library, such as a rotor punching sheet, a rotor and a motor (application number: 201711010295.0), the rotor punching sheet comprises a plurality of rotor poles distributed along the circumferential direction, the radial inner ends between every two adjacent rotor poles are connected and the radial outer ends are disconnected, permanent magnet mounting grooves are arranged between the connected radial inner ends and the disconnected radial outer ends, wherein the rotor poles are divided into a plurality of groups, the pole arc coefficients of the rotor poles in the same group are the same, and the pole arc coefficients of the rotor poles in different groups are different from each other.

In the rotor punching sheet, a plurality of rotor poles are mutually independent, and each rotor pole is connected with the inner ring of the rotor punching sheet only through the straight-line-shaped strip, so that the radial compressive strength of the rotor poles is weaker, and the rotor poles are easy to break.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a structurally improved motor rotor punching sheet structure with high radial compressive strength.

The purpose of the utility model can be realized by the following technical scheme: the structure-improved motor rotor punching sheet structure is an integrated structure and comprises a ring body and a circle of sheet bodies arranged outside the ring body, wherein each sheet body comprises an inner end and an outer end which are distributed along the radial direction of the ring body; the connecting bodies and the strip bodies are alternately distributed along the circumferential direction of the ring body; the outer ends of two adjacent connectors are connected through a connecting strip arranged between the two connectors.

The outer ends of all the sheet bodies are connected into a whole through the connecting strips, so that mutual support is formed between every two adjacent sheet bodies, and the radial compressive strength of the stamped sheet is effectively improved;

secondly, the connector that is triangle-shaped itself possesses higher radial compressive strength to set up connector and the alternative distribution of the body of strip along ring body circumference, not causing under the obvious influence prerequisite to magnetic flux of passing through, make the lamellar body of being connected with the connector carry out powerful support to the lamellar body of being connected with the body of strip, effectively strengthen the radial compressive strength of all lamellar bodies, thereby further strengthen the radial compressive strength of towards the piece.

In foretell improved structure's motor rotor towards piece structure, the transversal isosceles triangle that personally submits of connector, and the apex angle of connector sets up towards the lamellar body to bear radial effort better, improve towards the radial compressive strength of towards piece.

In foretell improved structure's motor rotor towards piece structure, foretell connector middle part is equipped with and runs through the through-hole that sets up along the ring body axial, under the prerequisite that does not influence connector intensity, multiplicable towards piece fretwork area improves and passes through the magnetic volume.

In foretell improved structure's motor rotor towards piece structure, the through-hole cross section is isosceles triangle, and both cross sections of through-hole and connector are similar and the apex angle orientation is unanimous, can not only receive the force better like this, and the through-hole can be used to triangle-shaped magnet steel location installation moreover, promptly in this application, the triangle-shaped through-hole possesses the dual-purpose effect of an thing, when simplifying the structure, the processing of being convenient for again.

In the structure-improved motor rotor punching sheet structure, the connecting strip is in the shape of a circular arc coaxial with the ring body, and two ends of the connecting strip are respectively connected with the two corresponding sheet bodies, so that better support is formed between the two sheet bodies.

In foretell improved structure's motor rotor towards piece structure, the outer end terminal surface of lamellar body is the arc surface that matches with the connecting strip, and level and smooth transition between connecting strip lateral surface and the arc surface, makes towards piece surface not have undulation unsmooth to form a complete and smooth periphery, effectively reduces lamellar body and external contact, thereby reduces the atress time, prolongs then towards the piece life-span.

In foretell improved structure's motor rotor towards piece structure, the connector all adopts the circular arc transition along the both sides that ring body circumference distributes and between the corresponding lamellar body, effectively strengthens the joint strength of lamellar body and connector to further strengthen towards piece radial compressive strength.

In the structure of the motor rotor punching sheet with the improved structure, the punching sheet is made of a silicon steel sheet material and is formed at one time in a punching mode.

Compared with the prior art, this institutional advancement's motor rotor towards piece structure has following advantage:

1. the outer ends of all the sheet bodies are connected into a whole through the connecting strips, so that mutual support is formed between every two adjacent sheet bodies, and the radial compressive strength of the stamped sheet is effectively improved; secondly, the connector that is isosceles triangle itself possesses higher radial compressive strength to set up connector and the alternative distribution of the body of strip along ring body circumference, not causing under the obvious influence prerequisite to magnetic flux that passes through, make the lamellar body of being connected with the connector carry out powerful support to the lamellar body of being connected with the body of strip, effectively strengthen the radial compressive strength of all lamellar bodies, thereby further strengthen towards the radial compressive strength of piece.

2. Through-hole and both cross sections of connector are similar and the apex angle orientation unanimous, guaranteeing under radial compressive strength prerequisite, both the through-hole increases to improve the magnetic flux that passes through towards piece fretwork area, can be used to triangle-shaped magnet steel location installation again when actual assembly, promptly in this application, the triangle-shaped through-hole possesses a dual-purpose effect of thing, when simplifying the structure, is convenient for again process.

Drawings

Fig. 1 is a schematic perspective structure diagram of a structure-improved motor rotor punching sheet structure.

Fig. 2 is a schematic view of a structure of a motor rotor punching sheet with an improved structure.

Fig. 3 is an enlarged schematic view of a structure at a in fig. 2.

Fig. 4 is a side view structure diagram of a structure-improved motor rotor punching sheet structure.

In the figure, 1, a ring body; 2. a sheet body; 2a, an inner end; 2b, an outer end; 3. a strip body; 4. a linker; 4a, a through hole; 5. and (4) connecting strips.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in figure 1, the motor rotor punching sheet with the improved structure is of an integrated structure, and during machining, the punching sheet is made of a silicon steel sheet material and is formed at one time in a punching mode.

In particular, the present invention relates to a method for producing,

rotor punching includes ring body 1 and locates the outer round lamellar body 2 of ring body 1, and 1 circumference interval equipartition of ring body is followed to round lamellar body 2. In this embodiment, the sheet 2 is trapezoidal, and the top surface of the sheet 2 faces the ring 1. As shown in fig. 1, the sheet body 2 includes an inner end 2a and an outer end 2b distributed along the radial direction of the ring body 1, wherein the inner end 2a of one part of the sheet body 2 is connected with the ring body 1 through a strip body 3 in a shape of a Chinese character 'yi', and the inner end 2a of the other part of the sheet body 2 is connected with the ring body 1 through a connecting body 4.

Wherein the content of the first and second substances,

the connecting bodies 4 and the strip bodies 3 are alternately distributed along the circumferential direction of the ring body 1;

the two sides of the strip body 3 distributed along the circumferential direction of the ring body 1 are in arc transition with the corresponding sheet body 2;

the thickness of the connecting body 4 extends along the axial direction of the ring body 1, and the cross section of the connecting body 4 is triangular. The cross section of the preferred connector 4 is isosceles triangle, the vertex angle of the connector 4 is set towards the sheet body 2, the connector 4 is in circular arc transition along the two sides of the circumferential distribution of the ring body 1 and between the corresponding sheet bodies 2, the connection strength of the sheet bodies 2 and the connector 4 is effectively enhanced, and the radial compression strength of the punching sheet is enhanced.

As shown in figure 1, the outer ends 2b of two adjacent connectors 4 are connected through the connecting strip 5 arranged between the two connectors, so that the outer ends 2b of all the sheet bodies 2 are connected to form a whole, mutual support is formed between the two adjacent sheet bodies 2, and the radial compressive strength of the punching sheet is effectively improved.

Further, as shown in fig. 1, 2 and 4, the ring body 1 is circular, the connecting strip 5 is circular arc coaxial with the ring body 1, and two ends of the connecting strip 5 are respectively connected with the two corresponding sheet bodies 2, so that a better support is formed between the two sheet bodies 2. The outer end 2b end face of the preferable sheet body 2 is an arc face matched with the connecting strip 5, and smooth transition is formed between the outer side face of the connecting strip 5 and the arc face, so that the outer surface of the punching sheet is not fluctuated and concave-convex, a complete and smooth circumferential face is formed, the contact between the sheet body 2 and the outside is effectively reduced, the stress time is reduced, and the service life of the punching sheet is prolonged.

As shown in fig. 2 and 3, the middle of the connecting body 4 is provided with a through hole 4a which is arranged along the axial direction of the ring body 1 in a penetrating manner, so that the hollow area of the punching sheet can be increased and the magnetic permeability can be improved on the premise of not influencing the strength of the connecting body 4. The cross section of the through hole 4a is preferably isosceles triangle, the cross sections of the through hole 4a and the connecting body 4 are similar, the vertex angle orientation is consistent, and therefore the stress can be better improved, and the through hole 4a can be used for positioning and mounting the triangular magnetic steel, namely, in the application, the triangular through hole 4a has a dual-purpose effect, and is convenient to process while the structure is simplified.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. Structure improvement's motor rotor punching structure, formula structure as an organic whole, including ring body (1) and the round lamellar body (2) of locating outside ring body (1), lamellar body (2) include along inner (2a) and outer end (2b) of ring body (1) radial distribution, wherein inner (2a) of some lamellar body (2) are connected with ring body (1) through strip (3) that are "one" font, inner (2a) of another part lamellar body (2) are connected with ring body (1) through connector (4), its characterized in that, the thickness of connector (4) extends along ring body (1) axial, and the cross-section of connector (4) is triangle-shaped; the connecting bodies (4) and the strip bodies (3) are alternately distributed along the circumferential direction of the ring body (1); the outer ends (2b) of two adjacent connectors (4) are connected through a connecting strip (5) arranged between the two connectors.

2. The structure-improved motor rotor punching structure as recited in claim 1, wherein the cross section of the connecting body (4) is an isosceles triangle, and the vertex angle of the connecting body (4) is arranged toward the sheet body (2).

3. The structure-improved motor rotor punching structure as claimed in claim 2, wherein a through hole (4a) is formed in the middle of the connecting body (4) and axially penetrates through the ring body (1).

4. The structure-improved motor rotor punching structure as recited in claim 3, wherein the cross section of the through hole (4a) is isosceles triangle, the cross sections of the through hole (4a) and the connecting body (4) are similar, and the vertex angles are consistent in orientation.

5. The structurally improved motor rotor punching structure as claimed in claim 1, 2, 3 or 4, wherein the connecting bar (5) is in the shape of an arc coaxial with the ring body (1), and two ends of the connecting bar (5) are respectively connected with the two corresponding sheet bodies (2).

6. The structure-improved motor rotor punching structure as recited in claim 5, characterized in that the end surface of the outer end (2b) of the sheet body (2) is a circular arc surface matched with the connecting strip (5), and the outer side surface of the connecting strip (5) is in smooth transition with the circular arc surface.

7. The structure-improved motor rotor punching structure as recited in claim 2, wherein the two sides of the connector (4) circumferentially distributed along the ring body (1) and the corresponding sheet body (2) are all in arc transition.