CN112260425B - Linear flat motor stator, linear flat motor, linear cylinder motor stator and linear cylinder motor - Google Patents
Linear flat motor stator, linear flat motor, linear cylinder motor stator and linear cylinder motor Download PDFInfo
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- CN112260425B CN112260425B CN202011221569.2A CN202011221569A CN112260425B CN 112260425 B CN112260425 B CN 112260425B CN 202011221569 A CN202011221569 A CN 202011221569A CN 112260425 B CN112260425 B CN 112260425B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 127
- 239000010959 steel Substances 0.000 claims abstract description 127
- 230000004888 barrier function Effects 0.000 claims description 49
- 238000004804 winding Methods 0.000 claims description 28
- 230000005284 excitation Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/12—Machines characterised by the modularity of some components
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Linear Motors (AREA)
Abstract
On one hand, the invention provides a linear flat motor stator with high magnetic steel utilization rate, and the second vertical magnetic conduction structures respectively belonging to the first magnetic conduction block and the second magnetic conduction block of two adjacent stator modules also form stator convex teeth, so that magnetic steel is placed in the middle of all stator teeth. On the other hand, the invention provides a linear cylinder motor stator with high magnetic steel utilization rate, and the second radial magnetic conduction structures respectively belonging to the third magnetic conduction block and the fourth magnetic conduction block of two adjacent stator modules also form stator convex teeth, so that the magnetic steel is placed in the middle of all stator teeth.
Description
Technical Field
The invention belongs to the technical field of linear motors, and particularly relates to a linear flat motor stator, a linear flat motor, a linear cylinder motor stator and a linear cylinder motor.
Background
A traditional linear motor lays magnetic steel at a primary guide rail, and the usage amount of the long magnetic steel of the guide rail is large. The traditional magnetic steel switching motor is provided with magnetic steel in each stator convex tooth, so that the usage amount is large. The utilization rate of the magnetic steel is low in both cases.
Disclosure of Invention
The invention aims to solve the problem of low utilization rate of magnetic steel of a linear motor and provides a linear flat motor stator with high utilization rate of magnetic steel and a linear cylinder motor stator with high utilization rate of magnetic steel.
In a first aspect, the present invention provides a linear flat motor stator, including a combination of two or more stator modules of a first stator module, a second stator module, and a third stator module; the first stator module comprises a first magnetic conduction block, first magnetic steel and a second magnetic conduction block which are sequentially connected from left to right, and the excitation direction of the first magnetic steel is left; the second stator module comprises a first magnetic conduction block, second magnetic steel and a second magnetic conduction block which are sequentially connected from left to right, and the excitation direction of the second magnetic steel is rightward; the third stator module comprises a first magnetic conduction block, a first magnetic barrier and a second magnetic conduction block which are sequentially connected from left to right, wherein the first magnetic barrier is made of a non-magnetic conduction material; the first magnetic conduction block and the second magnetic conduction block comprise a first vertical magnetic conduction structure, a second vertical magnetic conduction structure and a transverse magnetic conduction structure, wherein the first vertical magnetic conduction structure is attached with the first magnetic steel or the second magnetic steel or the first magnetic barrier in the left-right direction, the second vertical magnetic conduction structure is far away from the first magnetic steel or the second magnetic steel or the first magnetic barrier in the left-right direction, and the transverse magnetic conduction structure is connected with the first vertical magnetic conduction structure and the second vertical magnetic conduction structure; when the combination is formed by two of the first stator module, the second stator module and the third stator module, the two stator modules are alternately arranged from left to right, and the two adjacent stator modules are connected with each other; when the combination is formed by a first stator module, a second stator module and a third stator module, the first stator module and the second stator module are alternately arranged from left to right, a third stator module is arranged between the first stator module and the second stator module adjacent to the first stator module, and the two adjacent stator modules are connected with each other.
In a first possible implementation manner of the first aspect, left and right ends of the transverse magnetic conductive structure are connected to lower ends of the first vertical magnetic conductive structure and the second vertical magnetic conductive structure; the stator modules are bilaterally symmetrical; the upper side of the transverse magnetic conduction structure of the first stator module is provided with a centralized winding surrounding the first magnetic steel; the upper side of the transverse magnetic conduction structure of the second stator module is provided with a centralized winding surrounding the second magnetic steel; the upper side of the transverse magnetic conduction structure of the third stator module is provided with a centralized winding surrounding the first magnetic barrier.
In a second possible implementation manner of the first aspect, the left and right ends of the transverse magnetic conductive structure are connected at an intermediate position in the up-down direction of the first vertical magnetic conductive structure and the second vertical magnetic conductive structure.
With reference to the second possible implementation manner, in a third possible implementation manner of the first aspect, the stator module is symmetric left and right; the stator modules are vertically symmetrical; the upper side and the lower side of the transverse magnetic conduction structure of the first stator module are provided with concentrated windings surrounding the first magnetic steel; the upper side and the lower side of the transverse magnetic conduction structure of the second stator module are provided with concentrated windings surrounding the second magnetic steel; and the upper side and the lower side of the transverse magnetic conduction structure of the third stator module are provided with concentrated windings surrounding the first magnetic barrier.
With reference to the foregoing possible embodiments, in a fourth possible embodiment, the first magnetic steel, the second magnetic steel, and the first magnetic barrier are rectangular parallelepiped, and the dimensions of the first magnetic steel, the second magnetic steel, and the first magnetic barrier are the same; the first vertical magnetic conduction structure, the second vertical magnetic conduction structure and the transverse magnetic conduction structure are cuboid, and the magnetic conduction structures of the first stator module, the second stator module and the third stator module are identical; the size of the first vertical magnetic conduction structure in the left-right direction is larger than the sizes of the first magnetic steel, the second magnetic steel and the first magnetic barrier in the left-right direction; the left end face and the right end face of two adjacent stator modules are mutually attached; adjacent two stator modules are connected through gluing.
In a second aspect, the present invention provides a linear flat motor, including the linear flat motor stator in the third possible implementation manner or the fourth possible implementation manner provided in the first aspect, and the mover of the linear flat motor includes two linear flat motor guide rails respectively disposed on the upper and lower sides of the linear flat motor stator.
In a possible implementation manner of the second aspect, the shape of the linear flat motor guide rails on the upper side and the lower side is the same; the linear flat motor guide rail is provided with rotor convex teeth; the size of the top of the rotor convex stage tooth in the left-right direction is larger than that of the first vertical magnetic conduction structure in the left-right direction; the positions of the convex teeth of the rotor on the upper side and the lower side are staggered in the left-right direction; five-phase coils are arranged on the stator of the linear flat motor.
In a third aspect, the present invention provides a linear cylindrical motor stator, comprising a combination of two or more stator modules of a fourth stator module, a fifth stator module, and a sixth stator module; the fourth stator module comprises a third magnetic conduction block, a third magnetic steel and a fourth magnetic conduction block which are sequentially connected along the axial direction, the fifth stator module comprises a third magnetic conduction block, a fourth magnetic steel and a fourth magnetic conduction block which are sequentially connected along the axial direction, the excitation directions of the third magnetic steel and the fourth magnetic steel are parallel to the axial direction, and the excitation directions of the third magnetic steel and the fourth magnetic steel are opposite; the sixth stator module comprises a third magnetic conduction block, a second magnetic barrier and a fourth magnetic conduction block which are sequentially connected along the axial direction, wherein the second magnetic barrier is made of a non-magnetic conduction material; the third magnetic conduction block and the fourth magnetic conduction block comprise a first radial magnetic conduction structure, a second radial magnetic conduction structure and an axial magnetic conduction structure, wherein the first radial magnetic conduction structure is attached to the third magnetic steel or the fourth magnetic steel or the second magnetic barrier, the second radial magnetic conduction structure is far away from the third magnetic steel or the fourth magnetic steel or the second magnetic barrier, and the axial magnetic conduction structure is connected with the first radial magnetic conduction structure and the second radial magnetic conduction structure; when the combination is formed by two of the fourth stator module, the fifth stator module and the sixth stator module, the fourth stator module, the fifth stator module and the sixth stator module are alternately arranged along the axial direction, and the adjacent two stator modules are connected with each other; when the combination is formed by a fourth stator module, a fifth stator module and a sixth stator module, the fourth stator module and the fifth stator module are alternately arranged along the axial direction, a third stator module is arranged between the fourth stator module and the fifth stator module adjacent to the fourth stator module, and the two adjacent stator modules are connected with each other.
In a first possible implementation manner of the third aspect, the axially magnetically permeable structure is provided with windings on an inner side.
In a second possible implementation manner of the third aspect, the axial magnetically permeable structure is provided with windings on both inner and outer sides. With reference to the possible embodiments, the stator module is a rotating body; the third magnetic steel, the fourth magnetic steel and the second magnetic barrier are rotating bodies with rectangular sections, and the first radial magnetic conduction structure, the second radial magnetic conduction structure and the axial magnetic conduction structure are rotating bodies with rectangular sections;
In a fourth aspect, the present invention provides a linear cylinder motor, including the linear cylinder motor stator in the second possible implementation manner of the third aspect, where the mover of the linear cylinder motor includes two linear cylinder motor rails disposed on inner and outer sides of the linear cylinder motor stator, respectively.
In the linear flat motor stator provided by the invention, the first vertical magnetic conduction structure and the first magnetic steel or the second magnetic steel or the first magnetic barrier in the stator module form the stator convex teeth, and after the adjacent stator modules are connected, the first magnetic conduction blocks and the second vertical magnetic conduction structures respectively belonging to the two adjacent stator modules also form the stator convex teeth, so that the magnetic steel acts as a redundant tooth, and is placed at intervals in all the stator convex teeth. By the design of the redundant teeth, the individual modules are also independent of each other on the stator side magnetic path, and damage to one module does not affect the magnetic paths of the other modules. Thus, reliability is improved.
The linear flat motor provided by the invention has the advantages that the stator of the flat motor provided by the invention is adopted, the dosage of magnetic steel is reduced, and the utilization rate of the magnetic steel is improved.
In the linear cylinder motor stator provided by the invention, the first radial magnetic conduction structure and the third magnetic steel or the fourth magnetic steel or the second magnetic barrier in the stator module form the stator convex teeth, and after the adjacent stator modules are connected, the second radial magnetic conduction structures of the third magnetic conduction block and the fourth magnetic conduction block respectively belonging to the two adjacent stator modules also form the stator convex teeth, and the stator convex teeth are used as redundant teeth to play a role, so that the magnetic steels are placed at intervals in all the stator convex teeth, and compared with a traditional magnetic flux switching motor, the magnetic steel consumption is reduced by half. By the design of the redundant teeth, the individual modules are also independent of each other on the stator side magnetic path, and damage to one module does not affect the magnetic paths of the other modules. Thus, reliability is improved.
The linear cylinder motor provided by the invention has the advantages that the stator of the cylinder motor provided by the invention reduces the dosage of magnetic steel, improves the utilization rate of the magnetic steel, and is especially suitable for low-cost occasions.
Drawings
FIG. 1 is a schematic diagram of one embodiment of a first stator module, a second stator module, and a third stator module provided by the present invention;
FIG. 2 is a schematic structural view of another embodiment of a first stator module, a second stator module, and a third stator module provided by the present invention;
Fig. 3 is a schematic structural diagram of a first stator module combination of a stator of a linear flat motor according to the present invention;
fig. 4 is a schematic structural diagram of a second stator module combination mode of the stator of the linear flat motor provided by the invention;
Fig. 5 is a schematic structural diagram of a third stator module combination mode of a stator of a linear flat motor according to the present invention;
fig. 6 is a schematic structural diagram of a fourth stator module combination of a stator of a linear flat motor according to the present invention;
FIG. 7 is a schematic view of a linear flat motor according to an embodiment of the present invention;
FIG. 8 shows five-phase back EMF voltages generated by one embodiment of a linear flat motor provided by the present invention;
FIG. 9 shows the detent torque on two rails in one embodiment of the linear flat motor provided by the present invention;
FIG. 10 illustrates the final output of one embodiment of a linear flat motor provided by the present invention;
FIG. 11 is a schematic structural view of one embodiment of a fourth stator module, a fifth stator module, and a sixth stator module provided by the present invention;
FIG. 12 is a schematic view of a stator module assembly of a linear cylindrical motor stator according to the present invention;
FIG. 13 is a schematic view of a linear cylinder motor according to an embodiment of the present invention;
reference numerals illustrate:
100. A first stator module; 110. a first magnetic steel; 200. a second stator module; 210. a second magnetic steel; 300. a third stator module; 310. a first magnetic barrier; 400. a fourth stator module; 410. a third magnetic steel; 500. a fifth stator module; 510. fourth magnetic steel; 600. a sixth stator module; 610. a second magnetic barrier; 710. a first magnetic conductive block; 711. a first vertical magnetic conductive structure; 712. a second vertical magnetic conductive structure; 713. a transverse magnetic conduction structure; 720. a second magnetic conductive block; 730. a third magnetic conductive block; 731. a first radial magnetic conductive structure; 732. a second radial magnetic conductive structure; 733. an axial magnetic conduction structure; 740. a fourth magnetic conductive block; 800. a linear flat motor guide rail; 900. linear cylinder motor guide rail
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be understood that the detailed description is intended to illustrate the invention, but not to limit the invention. Terms such as first, second, etc. herein are used solely to distinguish one entity (or action) from another entity (or action) without necessarily implying any relationship or order between such entities (or actions); in addition, terms herein such as up, down, left, right, front, back, etc. denote a direction or orientation, but merely denote a relative direction or orientation, not an absolute direction or orientation. Without additional limitations, elements defined by the term "comprising" do not exclude the presence of other elements in a process, method, article, or apparatus that comprises the element.
Referring to fig. 1 to 6, in a first aspect, the present invention provides a linear flat motor stator, which is characterized by comprising a combination of two or more stator modules among a first stator module 100, a second stator module 200 and a third stator module 300;
The first stator module 100 comprises a first magnetic conduction block 710, a first magnetic steel 110 and a second magnetic conduction block 720 which are sequentially connected from left to right, wherein the excitation direction of the first magnetic steel 110 is left; the second stator module 200 includes a first magnetic conductive block 710, a second magnetic steel 210, and a second magnetic conductive block 720 sequentially connected from left to right, and an excitation direction of the second magnetic steel 210 is rightward; the third stator module 300 includes a first magnetic conductive block 710, a first magnetic barrier 310 and a second magnetic conductive block 720 sequentially connected from left to right, the first magnetic barrier 310 being composed of a non-magnetic conductive material;
The first magnetic conductive block 710 and the second magnetic conductive block 720 each include a first vertical magnetic conductive structure 711 attached to the first magnetic steel 110 or the second magnetic steel 210 or the first magnetic barrier 310 in the left-right direction, a second vertical magnetic conductive structure 712 far away from the first magnetic steel 110 or the second magnetic steel 210 or the first magnetic barrier 310 in the left-right direction, and a horizontal magnetic conductive structure 713 connecting the first vertical magnetic conductive structure 711 and the second vertical magnetic conductive structure 712;
Referring to fig. 3 to 5, when the combination is made up of two of the first stator module 100, the second stator module 200 and the third stator module 300, the two are alternately arranged from left to right, and the adjacent two stator modules are connected to each other;
Referring to fig. 6, when the combination is formed by the first stator module 100, the second stator module 200 and the third stator module 300, the first stator module 100 and the second stator module 200 are alternately arranged from left to right, a third stator module is disposed between the first stator module 100 and the second stator module 200 adjacent to the first stator module 100, and the two adjacent stator modules are connected with each other.
In the linear flat motor stator provided by the invention, the first vertical magnetic conduction structure 711 and the first magnetic steel 110 or the second magnetic steel 210 or the first magnetic barrier 310 in the stator module form stator convex teeth, and after the adjacent stator modules are connected, the first magnetic conduction block 710 and the second vertical magnetic conduction structure 712 of the second magnetic conduction block 720 respectively belonging to two adjacent stator modules also form stator convex teeth (for example, a first stator module 100 and a second stator module 200 are adjacent, wherein the first stator module 100 is positioned at the left side of the second stator module 200, and after the two stator modules are connected, the second vertical magnetic conduction structure 712 of the second magnetic conduction block 720 of the first stator module 100 and the second vertical magnetic conduction structure 712 of the first magnetic conduction block 710 of the second stator module 200 form a convex tooth), and act as redundant teeth, so that the magnetic steels are arranged at intervals in all stator teeth, and compared with the traditional magnetic flux switching motor, the magnetic steel consumption is reduced by half. By the design of the redundant teeth, the individual modules are also independent of each other on the stator side magnetic path, and damage to one module does not affect the magnetic paths of the other modules. Thus, reliability is improved.
The right-left direction herein refers to a moving direction of a mover of the linear flat motor.
The left and right ends of the stator of the linear flat motor can be a first stator module 100, a second stator module 200 or a third stator module 300; the stator modules at the two ends can be the same or different.
Referring to fig. 1, in a first alternative embodiment, left and right ends of the transverse magnetic conductive structure 713 are connected to lower ends of the first vertical magnetic conductive structure 711 and the second vertical magnetic conductive structure 712; the stator modules are bilaterally symmetrical; the upper side of the transverse magnetic conductive structure 713 of the first stator module is provided with a centralized winding surrounding the first magnetic steel 110; the upper side of the transverse magnetic conductive structure 713 of the second stator module is provided with a concentrated winding surrounding the second magnetic steel 210; the upper side of the transverse magnetically permeable structure 713 of the third stator module is provided with concentrated windings around the first flux barriers 310.
A barrier is formed between two adjacent winding coils through the structure of the redundant teeth, so that the isolation effect on the circuit is achieved, and the reliability of the motor is improved.
Referring to fig. 2, in a second alternative embodiment, the left and right ends of the transverse magnetic conductive structure 713 are connected to the middle positions of the first vertical magnetic conductive structure 711 and the second vertical magnetic conductive structure 712 in the up-down direction.
With the second alternative embodiment, the stator convex teeth may be formed on both the upper and lower sides, and in the motor using the stator, the stator convex teeth may be matched with the mover guide rails disposed on both the upper and lower sides.
Alternatively, the first, second and third stator modules 100, 200 and 300 may have a left-right symmetrical structure.
Specifically, the first magnetic steel 110, the second magnetic steel 210 and the first magnetic barrier 310 are cuboid, and the sizes of the first magnetic steel 110, the second magnetic steel 210 and the first magnetic barrier 310 are the same;
The first vertical magnetic conductive structure 711, the second vertical magnetic conductive structure 712, and the horizontal magnetic conductive structure 713 are rectangular, and the magnetic conductive structures of the first stator module 100, the second stator module 200, and the third stator module are the same.
The interval between every two adjacent stator teeth in the left-right direction is the same.
Optionally, the upper and lower sides of the transverse magnetic conductive structure 713 of the first stator module are provided with concentrated windings surrounding the first magnetic steel 110; the upper side and the lower side of the transverse magnetic conductive structure 713 of the second stator module are provided with concentrated windings surrounding the second magnetic steel 210; the third stator module has concentrated windings around the first flux barriers 310 on both the upper and lower sides of the transverse flux structure 713.
With the above specific structure, the first stator module 100 can be used as the second stator module 200 after being rotated.
Optionally, the dimension of the first vertical magnetic conductive structure 711 in the left-right direction is greater than the dimension of the first magnetic steel 110, the second magnetic steel 210, and the first magnetic barrier 310 in the left-right direction.
Optionally, the left and right end surfaces of two adjacent stator modules are mutually attached.
Optionally, two adjacent stator modules are connected by gluing.
Referring to fig. 7, in a second aspect, the present invention provides a linear flat motor, including a linear flat motor stator according to the second possible embodiment; the mover of the linear flat motor includes two linear flat motor guide rails 800 respectively provided at the upper and lower sides of the stator of the linear flat motor.
Under the condition that coils of the concentrated windings on the upper side and the lower side are connected in parallel, if one side winding or the guide rail fails, the other side winding can still continue to operate, and the reliability of the motor is improved.
Referring to fig. 8, optionally, a five-phase coil is disposed on the stator of the linear flat motor. The output of each phase voltage also fluctuates due to sinusoidal fluctuations in each phase voltage. By arranging the five-phase coils, the output fluctuation of each phase coil to the rotor can be more counteracted, and the total torque pulsation is reduced.
Alternatively, the linear flat motor guide 800 on the upper and lower sides has the same shape.
Optionally, mover convex teeth are arranged on the linear flat motor guide rail 800, and no magnetic steel is placed. The motor structure is simpler and more reliable, and the processing cost is reduced.
Optionally, the dimension of the top of the mover convex tooth in the left-right direction is greater than the dimension of the first vertical magnetic conductive structure 711 in the left-right direction.
Alternatively, the positions of the convex teeth of the rotor on the upper side and the lower side are staggered in the left-right direction. Specifically, the distance of the rotor convex stage teeth on the upper side and the lower side, which are staggered in the left-right direction, is half of the spacing distance of the rotor convex stage teeth in the left-right direction.
Referring to fig. 9, in the case that the stator module is symmetric vertically and laterally, the positional deviation between the upper and lower linear flat motor guide rails 800 causes the positioning moments of the upper and lower linear flat motor guide rails 800 to differ by 180 ° and the phases to be opposite, and the two are partially offset after being overlapped to form a lower total positioning moment.
Torque pulsation can be reduced by the staggered rotor convex stage teeth.
Referring to fig. 10, in the case of using the stator modules which are vertically symmetrical, the upper and lower mover guide rails which are identical in structure and are staggered, and the five-phase windings, the total torque ripple is maintained at a low level.
Referring to fig. 11 and 12, in a third aspect, the present invention provides a linear cylinder motor stator, comprising a combination of two or more stator modules of a fourth stator module 400, a fifth stator module 500 and a sixth stator module 600;
The fourth stator module 400 includes a third magnetic conductive block 730, a third magnetic steel 410, and a fourth magnetic conductive block 740 sequentially connected in an axial direction, and the fifth stator module 500 includes the third magnetic conductive block 730, the fourth magnetic steel 510, and the fourth magnetic conductive block 740 sequentially connected in the axial direction, and the excitation directions of the third magnetic steel 410 and the fourth magnetic steel 510 are parallel to the axial direction, and the excitation directions of the third magnetic steel 410 and the fourth magnetic steel 510 are opposite; the sixth stator module 600 includes a third magnetic conductive block 730, a second magnetic barrier 610, and a fourth magnetic conductive block 740 connected in sequence in an axial direction, the second magnetic barrier 610 being composed of a non-magnetic conductive material;
The third magnetic conduction block 730 and the fourth magnetic conduction block 740 comprise a first radial magnetic conduction structure 731 attached to the third magnetic steel 410 or the fourth magnetic steel 510 or the second magnetic barrier 610, a second radial magnetic conduction structure 732 far away from the third magnetic steel 410 or the fourth magnetic steel 510 or the second magnetic barrier 610, and an axial magnetic conduction structure 733 connected with the first radial magnetic conduction structure 731 and the second radial magnetic conduction structure 732;
When the combination is made up of two of the fourth stator module 400, the fifth stator module 500, and the sixth stator module 600, the two are alternately arranged in the axial direction, and the adjacent two stator modules are connected to each other;
When the combination is formed by the fourth stator module 400, the fifth stator module 500 and the sixth stator module 600, the fourth stator module 400 and the fifth stator module 500 are alternately arranged along the axial direction, a third stator module is arranged between the fourth stator module 400 and the fifth stator module 500 adjacent to the fourth stator module 400, and the two adjacent stator modules are connected with each other.
In the linear cylinder motor stator provided by the invention, the first radial magnetic conduction structure 731 and the third magnetic steel 410 or the fourth magnetic steel 510 or the second magnetic barrier 610 in the stator module form stator convex teeth, and after adjacent stator modules are connected, the second radial magnetic conduction structures 732 respectively belonging to the third magnetic conduction block 730 and the fourth magnetic conduction block 740 of two adjacent stator modules also form stator convex teeth, and the stator convex teeth act as redundant teeth, so that the magnetic steels are placed at intervals in all stator teeth, and compared with the traditional magnetic flux switching motor, the magnetic steel consumption is reduced by half. By the design of the redundant teeth, the individual modules are also independent of each other on the stator side magnetic path, and damage to one module does not affect the magnetic paths of the other modules. Thus, reliability is improved.
Optionally, the fourth stator module 400, the fifth stator module 500, and the sixth stator module 600 are rotating bodies;
Optionally, the third magnetic steel 410, the fourth magnetic steel 510 and the second magnetic barrier 610 are rotating bodies with rectangular cross sections, and the first radial magnetic conductive structure 731, the second radial magnetic conductive structure 732 and the axial magnetic conductive structure 733 are rotating bodies with rectangular cross sections;
In a first possible implementation manner of the third aspect, two ends of the axial magnetic conductive structure 733 in the axial direction are connected to one of inner ends and outer ends of the first radial magnetic conductive structure 731 and the second radial magnetic conductive structure 732. Correspondingly, windings are arranged on the inner side or the outer side of the axial magnetic conduction mechanism 733.
In a second possible implementation manner of the third aspect, two ends of the axial magnetic conductive structure 733 in the axial direction are connected to intermediate positions of the first radial magnetic conductive structure 731 and the second radial magnetic conductive structure 732 in the radial direction, and both inner and outer sides of the axial magnetic conductive structure 733 are provided with windings.
Optionally, the fourth stator module 400, the fifth stator module 500 and the sixth stator module 600 are axially symmetric.
Specifically, two axial end surfaces of two adjacent stator modules are mutually attached.
Referring to fig. 13, in a fourth aspect, the present invention provides a linear cylinder motor, including the above-mentioned linear cylinder motor stator, wherein the mover of the linear cylinder motor includes two linear cylinder motor guide rails 900 respectively disposed on the inner and outer sides of the linear cylinder motor stator.
The linear cylinder motor provided by the invention has the advantages that the stator of the cylinder motor provided by the invention is adopted, so that the dosage of magnetic steel is reduced.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.
Claims (10)
1. The linear flat motor stator is characterized by comprising a first stator module (100), a second stator module (200) and a third stator module (300);
The first stator module (100) comprises a first magnetic conduction block (710), first magnetic steel (110) and a second magnetic conduction block (720) which are sequentially connected from left to right, and the excitation direction of the first magnetic steel (110) is leftward; the second stator module (200) comprises a first magnetic conduction block (710), second magnetic steel (210) and a second magnetic conduction block (720) which are sequentially connected from left to right, and the excitation direction of the second magnetic steel (210) is rightward; the third stator module (300) comprises a first magnetic conduction block (710), a first magnetic barrier (310) and a second magnetic conduction block (720) which are sequentially connected from left to right, wherein the first magnetic barrier (310) is made of a non-magnetic conduction material;
The first magnetic conduction block (710) and the second magnetic conduction block (720) comprise a first vertical magnetic conduction structure (711) which is attached to the first magnetic steel (110) or the second magnetic steel (210) or the first magnetic barrier (310) in the left-right direction, a second vertical magnetic conduction structure (712) which is far away from the first magnetic steel (110) or the second magnetic steel (210) or the first magnetic barrier (310) in the left-right direction, and a transverse magnetic conduction structure (713) which is connected with the first vertical magnetic conduction structure (711) and the second vertical magnetic conduction structure (712);
When the combination is formed by the first stator module (100), the second stator module (200) and the third stator module (300), the first stator module (100) and the second stator module (200) are alternately arranged from left to right, one third stator module is arranged between the first stator module (100) and the second stator module (200) adjacent to the first stator module, and the adjacent two stator modules are connected with each other.
2. The linear flat motor stator according to claim 1, wherein the left and right ends of the transverse magnetic conductive structure (713) are connected to the lower ends of the first vertical magnetic conductive structure (711) and the second vertical magnetic conductive structure (712);
The stator modules are bilaterally symmetrical;
A centralized winding surrounding the first magnetic steel (110) is arranged on the upper side of the transverse magnetic conduction structure (713) of the first stator module; a centralized winding surrounding the second magnetic steel (210) is arranged on the upper side of the transverse magnetic conduction structure (713) of the second stator module; the upper side of the transverse magnetically permeable structure (713) of the third stator module is provided with a concentrated winding around the first magnetic barrier (310).
3. The linear-slab motor stator according to claim 1, wherein the left and right ends of the transverse magnetic conductive structure (713) are connected at intermediate positions in the up-down direction of the first vertical magnetic conductive structure (711) and the second vertical magnetic conductive structure (712).
4. A linear flat motor stator according to claim 3, wherein the stator modules are side-to-side symmetric; the stator modules are vertically symmetrical;
The upper side and the lower side of the transverse magnetic conduction structure (713) of the first stator module are provided with concentrated windings surrounding the first magnetic steel (110); the upper side and the lower side of the transverse magnetic conduction structure (713) of the second stator module are provided with concentrated windings surrounding the second magnetic steel (210); both the upper and lower sides of the transverse magnetically permeable structure (713) of the third stator module are provided with concentrated windings around the first magnetic barrier (310).
5. The linear-slab-motor stator of any one of claims 1-4, wherein the first magnetic steel (110), the second magnetic steel (210), and the first magnetic barrier (310) are rectangular parallelepiped, and the first magnetic steel (110), the second magnetic steel (210), and the first magnetic barrier (310) are the same size;
the first vertical magnetic conduction structure (711), the second vertical magnetic conduction structure (712) and the transverse magnetic conduction structure (713) are cuboid, and the magnetic conduction structures of the first stator module (100), the second stator module (200) and the third stator module are the same;
the size of the first vertical magnetic conduction structure (711) in the left-right direction is larger than the sizes of the first magnetic steel (110), the second magnetic steel (210) and the first magnetic barrier (310) in the left-right direction;
the left end face and the right end face of two adjacent stator modules are mutually attached;
And two adjacent stator modules are connected through gluing.
6. Linear flat motor comprising a linear flat motor stator according to claim 3 or 4; the mover of the linear flat motor comprises two linear flat motor guide rails (800) which are respectively arranged on the upper side and the lower side of the stator of the linear flat motor.
7. The linear flat motor of claim 6, wherein the linear flat motor guide rails on the upper and lower sides have the same shape;
the linear flat motor guide rail is provided with rotor convex teeth;
the size of the top of the rotor convex tooth in the left-right direction is larger than that of the first vertical magnetic conduction structure (711);
The positions of the convex teeth of the rotor on the upper side and the lower side are staggered in the left-right direction;
five-phase coils are arranged on the linear flat motor stator.
8. A linear cylindrical motor stator characterized by comprising a fourth stator module (400), a fifth stator module (500) and a sixth stator module (600);
The fourth stator module (400) comprises a third magnetic conduction block (730), a third magnetic steel (410) and a fourth magnetic conduction block (740) which are sequentially connected along the axial direction, the fifth stator module (500) comprises the third magnetic conduction block (730), the fourth magnetic steel (510) and the fourth magnetic conduction block (740) which are sequentially connected along the axial direction, the excitation directions of the third magnetic steel (410) and the fourth magnetic steel (510) are parallel to the axial direction, and the excitation directions of the third magnetic steel (410) and the fourth magnetic steel (510) are opposite; the sixth stator module (600) comprises a third magnetic conduction block (730), a second magnetic barrier (610) and a fourth magnetic conduction block (740) which are sequentially connected along the axial direction, wherein the second magnetic barrier (610) is made of a non-magnetic conduction material;
The third magnetic conduction block (730) and the fourth magnetic conduction block (740) comprise a first radial magnetic conduction structure (731) which is attached to the third magnetic steel (410) or the fourth magnetic steel (510) or the second magnetic barrier (610), a second radial magnetic conduction structure (732) which is far away from the third magnetic steel (410) or the fourth magnetic steel (510) or the second magnetic barrier (610) and an axial magnetic conduction structure (733) which is connected with the first radial magnetic conduction structure (731) and the second radial magnetic conduction structure (732);
When the combination is formed by the fourth stator module (400), the fifth stator module (500) and the sixth stator module (600), the fourth stator module (400) and the fifth stator module (500) are alternately arranged along the axial direction, one third stator module is arranged between the fourth stator module (400) and the fifth stator module (500) adjacent to the fourth stator module, and the adjacent two stator modules are connected with each other.
9. The linear cylindrical motor stator of claim 8, wherein the stator module is a rotating body;
the third magnetic steel (410), the fourth magnetic steel (510) and the second magnetic barrier (610) are rotating bodies with rectangular cross sections, and the first radial magnetic conduction structure (731), the second radial magnetic conduction structure (732) and the axial magnetic conduction structure (733) are rotating bodies with rectangular cross sections;
Windings are arranged on the inner side and the outer side of the axial magnetic conduction structure (733).
10. Linear cylinder motor, characterized in that it comprises a linear cylinder motor stator according to claim 8 or 9, the mover of which comprises two linear cylinder motor guide rails (900) provided on the inner and outer sides of the linear cylinder motor stator, respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011221569.2A CN112260425B (en) | 2020-11-05 | 2020-11-05 | Linear flat motor stator, linear flat motor, linear cylinder motor stator and linear cylinder motor |
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| CN202011221569.2A CN112260425B (en) | 2020-11-05 | 2020-11-05 | Linear flat motor stator, linear flat motor, linear cylinder motor stator and linear cylinder motor |
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| CN112260425B true CN112260425B (en) | 2024-06-04 |
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|---|---|---|---|---|
| CN103490574A (en) * | 2013-09-27 | 2014-01-01 | 江苏大学 | Magnetic circuit series double-stator cylindrical linear motor |
| CN107070165A (en) * | 2017-02-27 | 2017-08-18 | 华中科技大学 | A kind of flux-reversal type permanent-magnetism linear motor and its application |
| CN208489780U (en) * | 2018-05-29 | 2019-02-12 | 南京航空航天大学金城学院 | A kind of two-sided permanent magnet straight line flux switch motor |
| CN110957876A (en) * | 2019-12-05 | 2020-04-03 | 石家庄铁道大学 | Bilateral Flux Switching Permanent Magnet Linear Motor |
| CN213906392U (en) * | 2020-11-05 | 2021-08-06 | 厦门钨业股份有限公司 | Linear flat motor stator and linear flat motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101065613B1 (en) * | 2009-04-13 | 2011-09-20 | 한국전기연구원 | Linear and rotary electric machine structure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490574A (en) * | 2013-09-27 | 2014-01-01 | 江苏大学 | Magnetic circuit series double-stator cylindrical linear motor |
| CN107070165A (en) * | 2017-02-27 | 2017-08-18 | 华中科技大学 | A kind of flux-reversal type permanent-magnetism linear motor and its application |
| CN208489780U (en) * | 2018-05-29 | 2019-02-12 | 南京航空航天大学金城学院 | A kind of two-sided permanent magnet straight line flux switch motor |
| CN110957876A (en) * | 2019-12-05 | 2020-04-03 | 石家庄铁道大学 | Bilateral Flux Switching Permanent Magnet Linear Motor |
| CN213906392U (en) * | 2020-11-05 | 2021-08-06 | 厦门钨业股份有限公司 | Linear flat motor stator and linear flat motor |
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