CN221081001U - Miniature brushless motor excitation sheet - Google Patents
Miniature brushless motor excitation sheet Download PDFInfo
- Publication number
- CN221081001U CN221081001U CN202322825512.9U CN202322825512U CN221081001U CN 221081001 U CN221081001 U CN 221081001U CN 202322825512 U CN202322825512 U CN 202322825512U CN 221081001 U CN221081001 U CN 221081001U
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- excitation
- limiting plate
- brushless motor
- sheets
- installation
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- 230000005284 excitation Effects 0.000 title claims abstract description 79
- 238000009434 installation Methods 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 abstract description 31
- 239000011229 interlayer Substances 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 229910000976 Electrical steel Inorganic materials 0.000 description 8
- 239000003292 glue Substances 0.000 description 7
- 230000035699 permeability Effects 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Brushless Motors (AREA)
Abstract
The utility model relates to the field of brushless motor excitation sheets, in particular to a miniature brushless motor excitation sheet which comprises an installation limiting and fixing mechanism, wherein the installation limiting and fixing mechanism comprises an upper installation limiting plate, a lower installation limiting plate and a side installation fixing plate, a plurality of excitation sheets are glued between the upper installation limiting plate and the lower installation limiting plate at equal distances, and a magnetic conduction block is arranged in the middle of the top of the upper installation limiting plate. According to the utility model, the plurality of excitation sheets are glued, so that the number of the excitation sheets is increased, the magnetic flux density of the excitation sheets is increased, the magnetic resistance is reduced, the working efficiency of the miniature brushless motor is improved, the corrosion resistance of the excitation sheets is improved through the rust-proof layer and the insulating layer, the service life of the excitation sheets is prolonged, and meanwhile, the excitation sheets have higher interlayer resistivity, and the interlayer power loss of the excitation sheets is reduced.
Description
Technical Field
The utility model relates to the technical field of brushless motor excitation sheets, in particular to a miniature brushless motor excitation sheet.
Background
The brushless motor is composed of a motor main body and a driver, and is a typical electromechanical integrated product. Because the brushless motor operates in an automatic control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under heavy load under variable frequency speed regulation, and oscillation and step-out can not be generated when the load is suddenly changed.
Excitation is a machine that supplies a stator power to a generator or a synchronous motor stator, and supplies an operating magnetic field to a generator or the like (electric equipment operating on the principle of electromagnetic induction). The excitation has the functions of maintaining the voltage of the generator terminal at a given value, and when the load of the generator changes, the voltage of the generator terminal is constant by adjusting the intensity of a magnetic field, and the stability of a power system is improved, including static stability, transient stability, dynamic stability and the like.
Most of the prior brushless motors rely on copper windings to conduct current, but generate magnetic fields when current is generated, and the magnetic fields are conducted close to single air, so that the magnetic permeability is low, and then magnetic conduction is conducted by using a magnetic excitation sheet, but the magnetic conduction of the prior single excitation sheet is weak, and the corrosion resistance of the prior excitation sheet is weak.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides a miniature brushless motor excitation sheet.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The miniature brushless motor excitation sheet comprises an installation limiting and fixing mechanism, wherein the installation limiting and fixing mechanism comprises an upper installation limiting plate, a lower installation limiting plate and a side installation fixing plate, the side installation fixing plate is in a semicircular arc shape, the upper installation limiting plate is installed above one side in the side installation fixing plate, and the lower installation limiting plate is installed below one side in the side installation fixing plate;
A plurality of excitation sheets are glued between the upper installation limiting plate and the lower installation limiting plate at equal intervals, and a magnetic conduction block is arranged in the middle of the top of the upper installation limiting plate.
In addition, the structure is preferable, the top of the upper installation limiting plate and the top of the lower installation limiting plate are respectively provided with a first limiting through hole.
In addition, the top of the upper installation limiting plate and the lower installation limiting plate and the outside of the first limiting through holes are equidistantly separated from the first through holes, and a plurality of first through holes are formed in the first limiting through holes.
In addition, the excitation plate preferably comprises a base layer, a rust-proof layer and an insulating layer, wherein the rust-proof layer is arranged on the upper surface of the base layer, and the insulating layer is arranged on the upper surface of the rust-proof layer.
In addition, the preferred structure is, the middle part at the top of excitation piece is located corresponding first spacing through hole department and has seted up the spacing through hole of second, and the middle part at the top of excitation piece is located corresponding first through hole department and has all seted up the second through hole.
In addition, the preferred structure is that the magnetic conduction block is cylindrical, and the middle part at the top of the magnetic conduction block is located at the corresponding limiting through hole and provided with a through hole.
The beneficial effects of the utility model are as follows:
According to the utility model, the plurality of excitation sheets are glued, so that the number of the excitation sheets is increased, the magnetic flux density of the excitation sheets is increased, the magnetic resistance is reduced, the working efficiency of the miniature brushless motor is improved, the corrosion resistance of the excitation sheets is improved through the rust-proof layer and the insulating layer, the service life of the excitation sheets is prolonged, and meanwhile, the excitation sheets have higher interlayer resistivity, and the interlayer power loss of the excitation sheets is reduced.
Drawings
FIG. 1 is a schematic diagram of a miniature brushless motor excitation sheet according to the present utility model;
Fig. 2 is a schematic diagram of a split structure of a excitation sheet of a micro brushless motor according to the present utility model;
Fig. 3 is a schematic cross-sectional view of a magnetic field plate of a miniature brushless motor according to the present utility model.
In the figure: the magnetic field excitation plate comprises a 1-mounting limiting and fixing mechanism, a 11-mounting limiting plate, a 12-lower-mounting limiting plate, a 13-side-mounting fixing plate, a 14 first limiting through hole, a2 first through hole, a 3 magnetic conduction block, a 4 excitation plate, a 41 base layer, a 42 antirust layer, a 43 insulating layer, a 44 second limiting through hole, a 5 second through hole and a 6 through hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-3, a miniature brushless motor excitation sheet comprises an installation limiting and fixing mechanism 1, wherein the installation limiting and fixing mechanism 1 comprises an upper installation limiting plate 11, a lower installation limiting plate 12 and a side installation fixing plate 13, the side installation fixing plate 13 is in a semicircular arc shape, the upper installation limiting plate 11 is installed above one side in the side installation fixing plate 13, and the lower installation limiting plate 12 is installed below one side in the side installation fixing plate 13.
Wherein, go up and install spacing board 11, down and install equidistant gluing between the spacing board 12 have a plurality of excitation sheet 4, wherein the gluing agent is thomas silicon steel sheet structural adhesive, thomas silicon steel sheet structural adhesive intensity is high, surface finish is good, the temperature resistance is good, glue pot life is long, easy and simple to handle, thereby make between the excitation sheet 4 gluing more firm, its excitation sheet 4 thickness is 0.35mm simultaneously, wherein carry out gluing through a plurality of excitation sheet 4, thereby when increasing the quantity of its excitation sheet 4, to the magnetic flux density that has promoted excitation sheet 4, and reduced the magnetic resistance, thereby promoted micro brushless motor's work efficiency.
And the middle part at the top of the upper mounting limiting plate 11 is provided with a magnetic conduction block 3, wherein the top of the upper mounting limiting plate 11 and the top of the lower mounting limiting plate 12 are provided with first limiting through holes 14, and the top of the upper mounting limiting plate 11 and the top of the lower mounting limiting plate 12 are provided with a plurality of first through holes 2 in an equidistant manner outside the first limiting through holes 14.
Meanwhile, the excitation sheet 4 comprises a base layer 41, a rust-proof layer 42 and an insulating layer 43, wherein the rust-proof layer 42 is arranged on the upper surface of the base layer 41, the insulating layer 43 is arranged on the upper surface of the rust-proof layer 42, the base layer 41 is made of silicon steel, and the silicon steel is made of a magnetic material with very strong magnetic permeability, so that very large magnetic induction intensity can be generated in an electrified coil, and when the miniature brushless motor can be enabled to pass through a copper winding to be electrified and generate a magnetic field through the base layer 41, the magnetic field is conducted, however, the rust-proof layer 42 is used for improving the corrosion resistance of the excitation sheet 4, and the insulating layer 43 enables the excitation sheet 4 to have higher interlayer resistivity, so that the interlayer power loss of the excitation sheet 4 is reduced, the corrosion resistance of the excitation sheet 4 is improved, and the service life of the excitation sheet 4 is prolonged.
And, the middle part at the top of the excitation plate 4 is located at the corresponding first spacing through hole 14 and is provided with a second spacing through hole 44, and the middle part at the top of the excitation plate 4 is located at the corresponding first through hole 2 and is provided with a second through hole 5.
Further, the magnetic conduction block 3 is cylindrical, and the through hole 7 is formed in the middle of the top of the magnetic conduction block 3 and located at the corresponding limiting through hole 6, and the magnetic permeability of the magnetic sheet 4 can be increased through the magnetic conduction block 3.
In this embodiment, a plurality of excitation sheets 4 are glued between the upper mounting limiting plate 11 and the lower mounting limiting plate 12 at equal intervals, wherein the glue is Thomas silicon steel sheet structural glue, the Thomas silicon steel sheet structural glue has high adhesive strength, good surface finish, excellent temperature resistance, long glue pot life and simple operation, so that the glue between the excitation sheets 4 is firmer, and meanwhile, the thickness of the excitation sheets 4 is 0.35mm, wherein the glue is performed through the plurality of excitation sheets 4, so that the magnetic flux density of the excitation sheets 4 is improved while the number of the excitation sheets 4 is increased, and the magnetic resistance is reduced, so that the working efficiency of the miniature brushless motor is improved.
The base layer 41 is made of silicon steel, and the silicon steel is a magnetic material with strong magnetic permeability, so that a large magnetic induction intensity can be generated in the electrified coil, and when the miniature brushless motor is electrified by means of a copper winding and generates a magnetic field through the base layer 41, the magnetic field is conducted, however, the antirust layer 42 is used for improving the corrosion resistance of the excitation sheet 4, and the insulating layer 43 enables the excitation sheet 4 to have high interlayer resistivity, so that the interlayer power loss of the excitation sheet 4 is reduced, the corrosion resistance of the excitation sheet 4 is improved, the service life of the excitation sheet 4 is prolonged, and the magnetic permeability of the magnetic sheet 4 can be increased through the magnetic conduction block 3.
In the utility model, the plurality of excitation sheets 4 are glued, so that the number of the excitation sheets 4 is increased, the magnetic flux density of the excitation sheets 4 is increased, the magnetic resistance is reduced, the working efficiency of the miniature brushless motor is improved, the corrosion resistance of the excitation sheets 4 is improved through the rust-proof layer 42 and the insulating layer 43, the service life of the excitation sheets 4 is prolonged, and meanwhile, the excitation sheets 4 have higher interlayer resistivity, and the interlayer power loss of the excitation sheets 4 is reduced.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The miniature brushless motor excitation sheet comprises an installation limiting and fixing mechanism (1), and is characterized in that the installation limiting and fixing mechanism (1) comprises an upper installation limiting plate (11), a lower installation limiting plate (12) and a side installation fixing plate (13), wherein the side installation fixing plate (13) is in a semicircular arc shape, the upper installation limiting plate (11) is arranged above one side in the side installation fixing plate (13), and the lower installation limiting plate (12) is arranged below one side in the side installation fixing plate (13);
A plurality of excitation sheets (4) are glued between the upper installation limiting plate (11) and the lower installation limiting plate (12) at equal intervals, and a magnetic conduction block (3) is arranged in the middle of the top of the upper installation limiting plate (11).
2. The miniature brushless motor excitation sheet according to claim 1, wherein the tops of the upper mounting limiting plate (11) and the lower mounting limiting plate (12) are respectively provided with a first limiting through hole (14).
3. A miniature brushless motor excitation sheet according to claim 2, wherein the top of the upper mounting limiting plate (11) and the lower mounting limiting plate (12) are positioned outside the first limiting through holes (14) and are equidistantly separated from the first through holes (2).
4. The miniature brushless motor excitation sheet according to claim 1, wherein the excitation sheet (4) comprises a base layer (41), a rust-proof layer (42) and an insulating layer (43), the rust-proof layer (42) is arranged on the upper surface of the base layer (41), and the insulating layer (43) is arranged on the upper surface of the rust-proof layer (42).
5. The miniature brushless motor excitation sheet according to claim 4, wherein the middle part of the top of the excitation sheet (4) is located at a corresponding first limiting through hole (14) and is provided with a second limiting through hole (44), and the middle part of the top of the excitation sheet (4) is located at a corresponding first through hole (2) and is provided with a second through hole (5).
6. The miniature brushless motor excitation sheet according to claim 1, wherein the magnetic conductive block (3) is in a cylindrical shape, and a through hole (7) is formed in the middle of the top of the magnetic conductive block (3) at the corresponding limiting through hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322825512.9U CN221081001U (en) | 2023-10-20 | 2023-10-20 | Miniature brushless motor excitation sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322825512.9U CN221081001U (en) | 2023-10-20 | 2023-10-20 | Miniature brushless motor excitation sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221081001U true CN221081001U (en) | 2024-06-04 |
Family
ID=91267819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322825512.9U Active CN221081001U (en) | 2023-10-20 | 2023-10-20 | Miniature brushless motor excitation sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221081001U (en) |
-
2023
- 2023-10-20 CN CN202322825512.9U patent/CN221081001U/en active Active
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