CN112271851A - Coreless frameless winding motor - Google Patents
Coreless frameless winding motor Download PDFInfo
- Publication number
- CN112271851A CN112271851A CN202011222361.2A CN202011222361A CN112271851A CN 112271851 A CN112271851 A CN 112271851A CN 202011222361 A CN202011222361 A CN 202011222361A CN 112271851 A CN112271851 A CN 112271851A
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- CN
- China
- Prior art keywords
- motor
- stator assembly
- stator
- coils
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 title claims abstract description 37
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims description 3
- 229910000828 alnico Inorganic materials 0.000 claims description 3
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- UFNIBRDIUNVOMX-UHFFFAOYSA-N 2,4'-dichlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1Cl UFNIBRDIUNVOMX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010999 medical injection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/47—Air-gap windings, i.e. iron-free windings
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
- H02K1/2733—Annular magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/0094—Structural association with other electrical or electronic devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
A coreless frameless winding motor includes a housing, a stator assembly, a rotor assembly, and an end cap. The stator assembly is composed of a formed circular ring winding coil, and the stator assembly is sleeved in the shell and directly supported and fixed by taking the motor shell as a frame. In stator module's ring was located to the rotor subassembly cover, the rotor subassembly included: the shaft core is inserted into the permanent magnet, the positioning rings are sleeved at two ends of the shaft core, the positioning ring at the upper end of the shaft core is matched with a positioning hole at the top of the stator assembly, and the positioning ring is used for fixing the axial size; the end cover is arranged on the top of the stator assembly. The stator coil of the motor is fixed by the aid of the iron-free core, each turn of coil is arranged into a closed ring, and the multiple groups of coils form a cylindrical winding, so that the winding coils can be simply fixed, and the space occupied by the iron core is directly reduced, so that the outer diameter of the motor can be reduced, the cost of the motor is reduced, and the miniaturization of the motor is realized.
Description
Technical Field
The application relates to the technical field of motors, in particular to a coreless frameless winding motor.
Background
The existing hollow cup brushless motor utilizes a frame mode to fix a cup-shaped coil, is difficult to miniaturize in a space structure, and has certain limitation on the outer diameter of the motor. The motor without the frame and the iron core and with small radial size is designed, and the motor runs stably and has high efficiency. Compared with a motor with an iron core, the motor has the characteristics of small volume, light weight, compact structure, high reliability and durability. The hollow cup motor is generally applied to medical instruments and communication equipment, such as medical injection pumps, medical tooth grinding machines, monitoring cameras and the like, so that the hollow cup motor has a wide application field.
Disclosure of Invention
The application provides a coreless frameless winding motor, which aims to reduce the diameter of the motor and reduce the cost of the motor.
The application provides a coreless frameless winding motor, comprising:
the outer shell is provided with a plurality of grooves,
the stator assembly is formed by a formed circular winding coil, is sleeved in the shell and is directly supported and fixed by taking the motor shell as a frame;
the stator subassembly is located to the rotor subassembly cover, the rotor subassembly cover includes in the ring of stator module: the shaft core is inserted into the permanent magnet, the positioning rings are sleeved at two ends of the shaft core, and the positioning ring at the upper end is matched with a positioning hole at the top of the stator assembly;
and the end cover is arranged at the top of the stator assembly.
In some embodiments, the stator assembly circular winding coils are composed of multiple groups of coils, and two groups of coils can form a stator of a two-phase motor, or 3n groups of coils form a three-phase motor, or 4n groups of coils form a 4-phase motor.
In some embodiments, the outer wall of the winding coil can be insulated and protected by painting, or wound by high-temperature gummed paper, or plated with an insulating layer on the inner wall of the shell.
In some embodiments, the outer wall of the winding coil is formed by glue auxiliary molding in a manner of flattening and rounding.
In some embodiments, the stator assembly further comprises a PCB board or PCBA disposed on an upper portion of the toroidal winding coil.
In some embodiments, the PCB is a hard board or a soft board FPC, and the IC and the electronic component are disposed on the hard board or the soft board FPC to form a PCBA.
In some embodiments, the housing is a multi-stage cup-shaped structure, and the bottom of the housing may be provided with bearings.
In some embodiments, the end cap is made of plastic or metal, and a bearing can be arranged on the top of the end cap; the rubber cover is integrally formed and fixed with the oil-retaining bearing by using an injection molding mode.
In some embodiments, the permanent magnet is in a ring structure, the shaft core is inserted into an inner hole of the permanent magnet, and the permanent magnet is fixedly connected with the shaft core.
In some embodiments, the permanent magnet uses alnico, samarium cobalt, neodymium iron boron.
According to the embodiment, the stator coil is fixed without an iron core, each turn of the coil is arranged into a closed ring, the coil and the coil are fixed with each other by glue to form a cylindrical winding, the outer ring of the winding is directly sleeved into the shell after being wound by high-temperature glue paper, the winding coil can be simply fixed by using the mode, and the space occupied by the iron core is directly reduced, so that the outer diameter of the motor can be reduced, the cost of the motor is reduced, and the miniaturization of the motor can be realized.
Drawings
FIG. 1 is an exploded view of an embodiment of a coreless frameless winding motor;
FIG. 2 is a cross-sectional view of an embodiment of a coreless, frameless winding machine;
FIG. 3 is a schematic view of a rotor assembly of an embodiment of a coreless frameless winding machine;
FIG. 4 is a stator assembly and housing schematic of an embodiment of a coreless, frameless winding machine;
figure 5 is an expanded view of a stator assembly circular winding coil according to one embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The terms "connected" and "coupled" when used herein, unless otherwise indicated, include both direct and indirect connections (couplings).
Referring to fig. 1-5, the present application provides a coreless frameless winding machine comprising a housing 1, a stator assembly, a rotor assembly, and an end cap 2.
The stator assembly is composed of a formed circular ring winding coil 7, and the stator assembly is sleeved in the shell 1 and directly supported and fixed by taking the motor shell 1 as a frame. In stator module's ring was located to the rotor subassembly cover, the rotor subassembly included: permanent magnet 4, axle core 3 and position circle 6, in the axle core 3 inserts permanent magnet 4, 3 both ends of axle core are located to the position circle 6 cover, and the position circle 6 of 3 upper ends of axle core cooperatees with the locating hole at stator module top, and position circle 6 is used for fixed axial size. The end cover 2 is arranged on the top of the stator assembly.
The stator assembly of the brushless direct current motor is composed of the formed circular winding coil, the stator assembly is directly supported and fixed by taking the motor shell 1 as a frame, and the motor does not adopt a silicon steel sheet iron core used by a traditional motor, so that the structure is simplified, the size is reduced, the cost is reduced, and the minimum diameter of the brushless direct current motor can be 7mm or even smaller.
In some embodiments, the circular winding coil 7 is composed of a plurality of groups of coils, and two groups of coils can be used to form a stator of a two-phase motor, or 3n groups of coils can be used to form a three-phase motor, or 4n groups of coils can be used to form a 4-phase motor. The copper wire of the coil is small in wire diameter and wound neatly, gaps among the wires are reduced, the thickness of the winding is reduced, and the diameter of the motor can be reduced.
In some embodiments, the outer wall of the circular winding coil 7 may be insulated and protected by painting, or wound by high temperature adhesive paper, or plated with an insulating layer on the inner wall of the casing.
In some embodiments, the outer wall of the circular winding coil 7 is formed by means of glue auxiliary in a manner of flattening and rounding.
In some embodiments, the stator assembly further comprises a PCB board 8 or PCBA disposed on top of the toroid winding coil 7. Specifically, the PCB 8 is a hard board or a soft board FPC, and the hard board or the soft board FPC is provided with an IC and an electronic component to constitute a PCBA. The rear end of the winding is connected with a PCB wiring board and pressed into the shell together, the PCB wiring board is tightly matched with the shell, the three-phase line is welded on the PCB firstly, and then the three-phase line is led out, so that the coil is prevented from being broken in the use process of the motor.
In some embodiments, the housing 1 is a multi-stage cup-shaped structure, and the bottom of the housing 1 can be provided with a bearing 5.
In some embodiments, the end cap 2 is made of plastic or metal, and the bearing 5 can be arranged on the top of the end cap 2; the rubber cover is integrally formed and fixed with the oil-retaining bearing by using a mode of injection molding, so that the motor assembling procedures are reduced, and the motor processing cost is reduced.
In some embodiments, the permanent magnet 4 is of a circular ring structure, the shaft core is inserted into an inner hole of the permanent magnet, the inner hole is directly and tightly matched with the shaft core 3, two ends of the shaft core 3 are limited by the positioning rings 6, the structure is simple, the motor assembling procedures can be reduced, and the labor cost is reduced. The permanent magnet 4 can be fixedly connected with the shaft core 3 by glue.
In some embodiments, alnico, samarium cobalt, neodymium iron boron is used for the permanent magnets 4.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. A coreless frameless winding motor, comprising:
the outer shell is provided with a plurality of grooves,
the stator assembly is formed by a formed circular winding coil, is sleeved in the shell and is directly supported and fixed by taking the motor shell as a frame;
the stator subassembly is located to the rotor subassembly cover, the rotor subassembly cover includes in the ring of stator module: the shaft core is inserted into the permanent magnet, the positioning rings are sleeved at two ends of the shaft core, and the positioning ring at the upper end is matched with a positioning hole at the top of the stator assembly;
and the end cover is arranged at the top of the stator assembly.
2. The motor of claim 1, wherein the stator assembly circular winding coils are composed of a plurality of sets of coils, and two sets of coils can be used to form a stator of a two-phase motor, or 3n sets of coils can be used to form a three-phase motor, or 4n sets of coils can be used to form a 4-phase motor.
3. The motor of claim 1, wherein the outer wall of the winding coil is insulated and protected by painting, or is wound by high temperature gummed paper, or is plated with an insulating layer on the inner wall of the housing.
4. The motor of claim 1, wherein the outer wall of the winding coil is formed by glue-assisted molding in a flattened round manner.
5. The electric machine of claim 1, wherein the stator assembly further comprises a PCB board or PCBA disposed on an upper portion of the toroidal winding coil.
6. An electric machine according to claim 4, wherein the PCB is a rigid or flexible FPC on which the ICs and electronic components are mounted to form a PCBA.
7. The motor of claim 1, wherein said housing is a multi-stage cup-shaped structure, and said housing is configured with bearings at a bottom thereof.
8. The motor of claim 1, wherein the end cover is made of plastic or metal, and a bearing can be arranged on the top of the end cover; the rubber cover is integrally formed and fixed with the oil-retaining bearing by using an injection molding mode.
9. The motor of claim 1, wherein the permanent magnet is a ring structure, the shaft core is inserted into the inner hole of the permanent magnet, and the permanent magnet is fixedly connected with the shaft core.
10. The motor of claim 1 wherein said permanent magnets are alnico, samarium cobalt, neodymium iron boron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011222361.2A CN112271851A (en) | 2020-11-05 | 2020-11-05 | Coreless frameless winding motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011222361.2A CN112271851A (en) | 2020-11-05 | 2020-11-05 | Coreless frameless winding motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112271851A true CN112271851A (en) | 2021-01-26 |
Family
ID=74345626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011222361.2A Pending CN112271851A (en) | 2020-11-05 | 2020-11-05 | Coreless frameless winding motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112271851A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4334160A (en) * | 1979-04-27 | 1982-06-08 | The Garrett Corporation | Rotating electrical machine |
| CN101527493A (en) * | 2009-04-27 | 2009-09-09 | 青岛同日电机有限公司 | Moving magnet-type cylindrical linear motor |
| CN102859316A (en) * | 2010-04-30 | 2013-01-02 | 瑞尼斯豪公司 | Metrology apparatus |
| CN106160287A (en) * | 2016-07-29 | 2016-11-23 | 精进电动科技（北京）有限公司 | The generating integrated motor of integrated starting and a kind of hybrid powertrain system |
| CN106877539A (en) * | 2017-04-16 | 2017-06-20 | 朱幕松 | Iron-core-free brushless gearless big hub motor |
| CN107516956A (en) * | 2017-09-18 | 2017-12-26 | 温州赫驰科技有限公司 | A kind of novel permanent magnetic iron core brushless electric machine |
| CN213782997U (en) * | 2020-11-05 | 2021-07-23 | 深圳市恒驱电机股份有限公司 | Coreless frameless winding motor |
-
2020
- 2020-11-05 CN CN202011222361.2A patent/CN112271851A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4334160A (en) * | 1979-04-27 | 1982-06-08 | The Garrett Corporation | Rotating electrical machine |
| CN101527493A (en) * | 2009-04-27 | 2009-09-09 | 青岛同日电机有限公司 | Moving magnet-type cylindrical linear motor |
| CN102859316A (en) * | 2010-04-30 | 2013-01-02 | 瑞尼斯豪公司 | Metrology apparatus |
| CN106160287A (en) * | 2016-07-29 | 2016-11-23 | 精进电动科技（北京）有限公司 | The generating integrated motor of integrated starting and a kind of hybrid powertrain system |
| CN106877539A (en) * | 2017-04-16 | 2017-06-20 | 朱幕松 | Iron-core-free brushless gearless big hub motor |
| CN107516956A (en) * | 2017-09-18 | 2017-12-26 | 温州赫驰科技有限公司 | A kind of novel permanent magnetic iron core brushless electric machine |
| CN213782997U (en) * | 2020-11-05 | 2021-07-23 | 深圳市恒驱电机股份有限公司 | Coreless frameless winding motor |
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