CN213185652U

CN213185652U - Linear motor stator and linear motor

Info

Publication number: CN213185652U
Application number: CN202021832725.4U
Authority: CN
Inventors: 陈振富
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-05-11
Anticipated expiration: 2030-08-28

Abstract

The utility model belongs to the technical field of the motor, especially, relate to a linear electric motor stator and contain its linear electric motor. A linear motor stator comprises a stator body and a stainless steel pipe, wherein the stator body is formed by bonding a plurality of N-pole magnets and S-pole magnets on two contact surfaces in turn by adopting an adhesive to form a long bar shape, the stainless steel pipe is sleeved on the stator body, and at least one hole is formed in the stainless steel pipe. Compared with the prior art, the utility model discloses the periphery cladding at original linear electric motor stator has the nonrust steel pipe of trompil, has increased former linear electric motor stator's intensity, has guaranteed the straightness accuracy, does not influence motor stator's magnetic flux simultaneously, does not influence the performance of motor.

Description

Linear motor stator and linear motor

Technical Field

The utility model belongs to the technical field of the motor, especially, relate to a linear electric motor stator and contain its linear electric motor.

Background

The cylindrical linear motor stator (magnetic bar) adopts N and S pole cylindrical or ring-shaped magnets, and two contact surfaces are sequentially and alternately bonded into a long bar shape by adopting an adhesive. The stator with the structure has the following disadvantages: 1. the whole length is limited by only supporting by two contact surfaces and the adhesive; 2. if the whole straightness needs to be ensured, a corresponding forming die is needed, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a linear electric motor stator in not enough to above-mentioned prior art, can guarantee the stator straightness accuracy. Based on this purpose, the utility model discloses a technical scheme as follows:

a linear motor stator comprises a stator body and a stainless steel pipe, wherein the stator body is formed by bonding a plurality of N-pole magnets and S-pole magnets on two contact surfaces in turn by adopting an adhesive to form a long bar shape, the stainless steel pipe is sleeved on the stator body, and at least one hole is formed in the stainless steel pipe.

Further, the holes in the stainless steel pipe are integrated holes distributed in a spiral line mode.

Furthermore, the holes are strip-shaped and distributed on the stainless steel pipe in an array manner.

Furthermore, a positioning groove is formed in one of two surfaces of two adjacent magnets in the stator body, and a positioning protrusion is arranged on the surface bonded with the positioning groove.

Furthermore, the holes are a plurality of and are uniformly arranged into at least 4 rows along the axial direction of the stainless steel pipe, and the holes are distributed in a staggered manner between every two adjacent rows.

Furthermore, the holes are distributed on the stainless steel pipe in a spiral line manner.

Furthermore, one end of the stainless steel pipe is closed, and the other end of the stainless steel pipe is tightly pressed with the stator body in a side-jacking mode.

Further, the magnet is a cylindrical or ring magnet.

The invention also provides a linear motor, which comprises the linear motor stator.

Compared with the prior art, the utility model discloses the periphery cladding at original linear electric motor stator has the nonrust steel pipe of trompil, has increased former linear electric motor stator's intensity, has guaranteed the straightness accuracy, does not influence motor stator's magnetic flux simultaneously, does not influence the performance of motor.

Drawings

FIG. 1 is a prior art motor stator;

fig. 2 is a schematic structural view of a stator of a motor according to a first embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of a stainless steel pipe according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of a stator of a motor according to a second embodiment of the present invention;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;

FIG. 7 is a schematic structural view of a stainless steel pipe according to a second embodiment of the present invention;

fig. 8 is a schematic structural view of a third embodiment of the present invention;

fig. 9 is a schematic structural view of a fourth embodiment of the present invention;

in the figure, 1-stator body, 2-stainless steel tube, 21-hole.

Detailed Description

Example 1

As shown in fig. 2 and 3, a linear motor stator comprises a stator body 1 and a stainless steel tube 2, wherein the stator body 1 is formed by sequentially and alternately adhering two contact surfaces of a plurality of cylindrical or annular magnets N and S-pole magnets by using an adhesive to form a long-strip rod shape, the stainless steel tube 2 is sleeved on the stator body 1, and at least one hole 21 is formed in the stainless steel tube 2.

Specifically, as shown in fig. 4, the holes 21 of the stainless steel pipe 2 are integrated holes distributed in a spiral line. The spiral line distributed holes are formed in the inner wall of the stainless steel pipe, so that the straightness of the stator can be protected, and magnetic flux is not influenced.

Specifically, one of two surfaces of two adjacent magnets in the stator body 1 is provided with a positioning groove, and a positioning protrusion is arranged on the surface bonded with the positioning groove. In order to ensure the performance of the stator and the performance of the motor, two adjacent magnets are required to be positioned on the same axis when being pasted, and the accurate position of the magnets when being pasted is ensured through the positioning groove and the positioning bulge.

Specifically, one end of the stainless steel tube 2 is closed, and the other end is pressed against the stator body 1 in a side-top manner.

Because of adopting closed steel pipe, can direct influence magnetic flux to influence the motor performance, so adopt the steel pipe of local trompil, trompil size and length all design according to actual demand.

Example 2

As shown in fig. 5 and 6, is a schematic structural diagram of a second embodiment of the present invention. The difference from embodiment 1 is that in this embodiment, a plurality of holes 21 are distributed in a spiral on the steel pipe 2. The same parts as those in embodiment 1 are abbreviated or not in this embodiment.

The utility model provides a linear electric motor stator, includes stator body 1 and nonrust steel pipe 2, and stator body 1 adopts the bonding agent to adhere into rectangular bar-like shape by a plurality of cylindrical or ring shape magnet N and S utmost point magnet two contact surfaces in turn, and nonrust steel pipe 2 cover is established on stator body 1. As shown in fig. 7, a plurality of holes 21 are formed in the stainless steel pipe 2, and the holes are spirally distributed in the stainless steel pipe 2.

Example 3

The utility model provides a linear electric motor stator, includes stator body 1 and nonrust steel pipe 2, and stator body 1 adopts the adhesive to adhere into rectangular bar-like shape by a plurality of cylindrical or ring shape magnet N and S utmost point magnet two contact surfaces in turn, and nonrust steel pipe 2 cover is established on stator body 1, has seted up at least one hole 21 on nonrust steel pipe 2.

As shown in fig. 8, the holes 21 are elongated holes and are distributed in an array on the stainless steel tube 2.

Example 4

The utility model provides a linear electric motor stator, includes stator body 1 and nonrust steel pipe 2, and stator body 1 adopts the bonding agent to adhere into rectangular bar-like shape by a plurality of cylindrical or ring shape magnet N and S pole magnet two contact surfaces in turn, and nonrust steel pipe 2 cover is established on stator body 1, has seted up at least one hole 21 on nonrust steel pipe 2.

As shown in fig. 9, the holes 21 are plural and are uniformly arranged in at least 4 rows along the axial direction of the stainless steel tube 2, and the holes 21 are distributed in a staggered manner between two adjacent rows.

Example 5

The embodiment provides a linear electric motor, and this linear electric motor includes the linear electric motor stator, and this linear electric motor stator includes stator body 1 and nonrust steel pipe 2, and stator body 1 adopts the bonding agent to adhere into rectangular bar-shaped by a plurality of cylindrical or ring shape magnet N and S utmost point magnet two contact surfaces in turn, and nonrust steel pipe 2 cover is established on stator body 1, has seted up at least one hole 21 on nonrust steel pipe 2.

Finally, it should be noted that: the above embodiments are only used for illustrating the present invention and do not limit the technical solution described in the present invention; thus, while the present invention has been described in detail with reference to the various embodiments thereof, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and within the scope and spirit of the following claims.

Claims

1. A linear motor stator, characterized by: the permanent magnet motor stator comprises a stator body (1) and a stainless steel pipe (2), wherein the stator body (1) is formed by sequentially and alternately bonding two contact surfaces of a plurality of N-pole magnets and S-pole magnets into a long bar shape by using an adhesive, the stainless steel pipe (2) is sleeved on the stator body (1), and at least one hole (21) is formed in the stainless steel pipe (2).

2. The linear motor stator according to claim 1, characterized in that the holes (21) of the stainless steel tube (2) are helical distributed integrated holes.

3. The linear motor stator as claimed in claim 1, wherein: the holes (21) are long-strip-shaped and distributed on the stainless steel pipe (2) in an array manner.

4. The linear motor stator as claimed in claim 1, wherein: one of the two surfaces of two adjacent magnets in the stator body (1) is provided with a positioning groove, and a positioning bulge is arranged on the surface bonded with the positioning groove.

5. The linear motor stator as claimed in claim 1, wherein: the holes (21) are a plurality of and are uniformly arranged into at least 4 rows along the axial direction of the stainless steel pipe (2), and the holes (21) are distributed in a staggered manner between every two adjacent rows.

6. The linear motor stator as claimed in claim 1, wherein: the holes (21) are distributed on the stainless steel pipe (2) in a spiral line manner.

7. The linear motor stator as claimed in claim 1, wherein: one end of the stainless steel tube (2) is closed, and the other end of the stainless steel tube is tightly pressed with the stator body (1) in a side-jacking mode.

8. The linear motor stator as claimed in claim 1, wherein: the magnet is a cylindrical or ring-shaped magnet.

9. A linear electric motor characterized by: a linear motor stator comprising a stator according to any one of claims 1 to 8.