CN212210635U - Hollow cup type coil winding and stator assembly of brushless motor - Google Patents
Hollow cup type coil winding and stator assembly of brushless motor Download PDFInfo
- Publication number
- CN212210635U CN212210635U CN202020788199.XU CN202020788199U CN212210635U CN 212210635 U CN212210635 U CN 212210635U CN 202020788199 U CN202020788199 U CN 202020788199U CN 212210635 U CN212210635 U CN 212210635U
- Authority
- CN
- China
- Prior art keywords
- iron core
- annular
- coil winding
- brushless motor
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Windings For Motors And Generators (AREA)
Abstract
The utility model discloses a brushless motor hollow cup type coil winding, including the winding body, this winding body is hollow tube-shape, the both ends of winding body are equipped with the annular portion that turns up respectively. The stator assembly comprises a cylindrical iron core and any one of the brushless motor hollow cup type coil windings, the cylindrical iron core is coated outside the brushless motor hollow cup type coil windings, and the annular part is located on the outer side of the end part of the cylindrical iron core. The utility model has the effects that the performances such as equal specification motor efficiency can be improved.
Description
Technical Field
The utility model relates to a motor, concretely relates to motor accessory.
Background
The application of the inner rotor brushless motor in the field of medical handheld structures is gradually increased, and the requirements of customers on the efficiency and the heating of the brushless motor are higher and higher. At present, an inner rotor brushless motor in the market adopts a traditional coil winding, the highest efficiency hardly breaks through 85% due to structural reasons, and the heat productivity of the motor is increased indirectly during operation. The main hollow cup type coil winding in the current market has the following structures:
(1) the winding type-oblique line section + straight line section are combined;
(2) an oblique winding type diagonal segment of-90 degrees or 180 degrees;
(3) rhombus-upper and lower equilateral oblique line segments;
the hollow cup type coil windings have some disadvantages in designing a high-power brushless direct-current motor, such as:
a. the coil winding slot fullness rate is too high, so that the reliability is reduced, and the complexity of the manufacturing process is increased;
b. the oblique line section of the coil winding has a large proportion, and the value of a torque constant generated by the motor is relatively low;
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a hollow cup type coil winding of brushless motor, which comprises the following technical solutions:
the utility model provides a brushless motor coreless coil winding, includes the winding body, and this winding body is hollow tube-shape, and its key lies in: and two ends of the winding body are respectively provided with an outward-turning annular part.
As a preferred technical scheme, the winding body is composed of at least two coil units which are sequentially connected in an annular overlapped mode, and each coil unit is formed by winding a strand of conducting wire.
Preferably, the winding body includes a straight cylinder portion, the annular portions are provided at both ends of the straight cylinder portion, an inner ring wall of the annular portion is flush with an inner wall of the straight cylinder portion, and an outer ring diameter of the annular portion is larger than an outer ring diameter of the straight cylinder portion.
Preferably, the lead wire of the straight cylinder portion is arranged along the axial direction thereof.
The utility model discloses a second aim at provides a stator module, its technical scheme as follows:
the stator assembly is characterized in that: the brushless motor hollow cup type coil winding comprises a cylindrical iron core and any one of the brushless motor hollow cup type coil windings, wherein the cylindrical iron core is coated outside the brushless motor hollow cup type coil windings, and the annular part is positioned on the outer side of the end part of the cylindrical iron core.
Preferably, annular insulating end pieces are respectively arranged on the end faces of the two ends of the cylindrical iron core.
As a preferred technical scheme, a casing is further sleeved outside the cylindrical iron core, the outer wall of the cylindrical iron core is fixed to the inner wall of the casing, and the outer ring wall of the annular part is attached to the inner wall of the casing.
Drawings
FIG. 1 is a schematic structural view of example 1;
fig. 2 is a schematic structural view of embodiment 2.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
Example 1:
a hollow cup type coil winding of a brushless motor comprises a winding body 7, wherein the winding body 7 is in a hollow cylinder shape, and two ends of the winding body 7 are respectively provided with an outwards-turned annular part 72.
The winding body 7 is composed of at least two coil units which are sequentially connected in an annular overlapped mode, and each coil unit is formed by winding a strand of conducting wire.
The winding body 7 includes a straight tube portion 71, the annular portions 72 are provided at both ends of the straight tube portion 71, an inner wall of the annular portion 72 is flush with an inner wall of the straight tube portion 71, and an outer diameter of the annular portion 72 is larger than an outer diameter of the straight tube portion 71.
The lead wires of the straight tube portion 71 are arranged along the axial direction thereof.
The conductive wire of the annular portion 72 may be a straight line segment (parallel to the conductive wire of the straight portion 71) or an oblique line segment; and may also be circumferentially disposed.
Example 2:
a stator assembly comprises a cylindrical iron core 8 and the brushless motor hollow cup type coil winding of embodiment 1, wherein the cylindrical iron core 8 is coated outside the brushless motor hollow cup type coil winding, the outer wall of the straight cylinder part 71 is attached to the inner cylinder wall of the cylindrical iron core 8, the annular part 72 is positioned outside the end part of the cylindrical iron core 8, and annular insulating end pieces 10 are respectively arranged on the end surfaces of two ends of the cylindrical iron core 8.
Still the cover is equipped with casing 9 outside tube-shape iron core 8, tube-shape iron core 8's outer wall is fixed casing 9's inner wall, the outer lane wall of annular portion 72 with casing 9's inner wall laminating.
Alternative assembly methods are: firstly, winding a lead into a straight cylinder shape, then inserting the straight cylinder-shaped winding into the cylinder-shaped iron core 8, finally turning over the two ends of the straight cylinder shape radially outwards to form the winding body 7,
the straight cylinder part 71 and the annular part 72 are formed by winding the same wire, the wire at the straight cylinder part 71 is tighter, and the wire at the annular part 72 is relatively loose. The control motor and the test motor are arranged, the control motor and the test motor are different only in the winding mode of coils, wherein the stator coil of the control motor adopts the winding mode of an inclined line segment and a straight line segment, the stator coil of the test motor adopts the mode of the embodiment 1, and the performance test results of the control motor and the test motor are as follows:
the utility model has the effects that the performances such as equal specification motor efficiency can be improved.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (7)
1. The utility model provides a brushless motor coreless coil winding, includes winding body (7), and this winding body (7) are hollow tube-shape, its characterized in that: two ends of the winding body (7) are respectively provided with an outward-turning annular part (72).
2. The brushless electric machine coreless coil winding of claim 1, wherein: the winding body (7) is composed of at least two coil units which are sequentially connected in an annular overlapped mode.
3. The brushless electric machine coreless coil winding of claim 1, wherein: the winding body (7) comprises a straight cylinder part (71), the annular parts (72) are respectively arranged at two ends of the straight cylinder part (71), the inner ring wall of the annular part (72) is flush with the inner wall of the straight cylinder part (71), and the outer ring diameter of the annular part (72) is larger than that of the straight cylinder part (71).
4. The brushless electric machine coreless coil winding of claim 3, wherein: the lead wire of the straight tube part (71) is arranged along the axial direction thereof.
5. A stator assembly, characterized by: the brushless motor hollow cup type coil winding comprises a cylindrical iron core (8) and the brushless motor hollow cup type coil winding as claimed in any one of claims 1 to 4, wherein the cylindrical iron core (8) is coated outside the brushless motor hollow cup type coil winding, and the annular part (72) is positioned outside the end part of the cylindrical iron core (8).
6. The stator assembly of claim 5, wherein: and annular insulating end plates (10) are respectively arranged on the end faces of the two ends of the cylindrical iron core (8).
7. The stator assembly of claim 5, wherein: still the cover is equipped with casing (9) outside tube-shape iron core (8), the outer wall of tube-shape iron core (8) is fixed the inner wall of casing (9), the outer lane wall of annular portion (72) with the inner wall laminating of casing (9).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020139013 | 2020-01-21 | ||
| CN2020201390138 | 2020-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212210635U true CN212210635U (en) | 2020-12-22 |
Family
ID=73814544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020788199.XU Active CN212210635U (en) | 2020-01-21 | 2020-05-13 | Hollow cup type coil winding and stator assembly of brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212210635U (en) |
-
2020
- 2020-05-13 CN CN202020788199.XU patent/CN212210635U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102163885B (en) | Motor and its stator connector | |
| US9079603B2 (en) | Motor for an electric power steering apparatus | |
| CN101483361B (en) | Stator winding construction and winding method for slotless motor stator winding, and stator construction with the winding construction | |
| CN202906595U (en) | Motor | |
| CN105406629A (en) | Motor stator and permanent magnet generator | |
| CN205509812U (en) | High -efficient brushless DC motor | |
| CN107465279A (en) | Motor and compressor | |
| US10291087B2 (en) | Electric motor | |
| CN104104170B (en) | Motor and its rotor | |
| JP2020522226A (en) | Electric motor and compressor | |
| CN212210635U (en) | Hollow cup type coil winding and stator assembly of brushless motor | |
| CN107017709A (en) | Motor stator, magneto and compressor | |
| US8847459B2 (en) | Coil for slotless electric motors having compact radial heads | |
| CN107124055B (en) | Rotor of compressor, permanent magnet motor and compressor | |
| CN104836361A (en) | Efficient high-speed motor | |
| CN205489835U (en) | Stator is towards piece, stator core , stator and motor | |
| CN205178690U (en) | Motor stator , permanent magnet generator | |
| TWI389427B (en) | A motor with a radial gas gap and a stator | |
| CN114244051A (en) | High-efficiency permanent magnet synchronous motor | |
| US11418081B2 (en) | Motor stator for compressor, permanent magnet motor, and compressor | |
| CN205986356U (en) | Modular motor stator structure | |
| CA2645192C (en) | Stator winding for a slotless motor | |
| CN206865253U (en) | Rotor, magneto, the compressor of compressor | |
| CN105262246A (en) | Long strip-shaped silicon steel punching sheet of brushless DC motor and stator comprising same | |
| CN110311484A (en) | A kind of high-speed permanent magnet motor water cooling short stator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220923 Address after: Room 603, 501, 5th Floor, Ruihui Building, Watch Base, Mashantou Community, Matian Street, Guangming District, Shenzhen, Guangdong Province Patentee after: Shenzhen dedaxing Drive Technology Co.,Ltd. Address before: Room A701, Tianan science and Technology Pioneer Park building, chegongmiao, Futian District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN CANGXINGDA TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |