CN111756127A - Stator module, motor and washing machine - Google Patents
Stator module, motor and washing machine Download PDFInfo
- Publication number
- CN111756127A CN111756127A CN201910245482.XA CN201910245482A CN111756127A CN 111756127 A CN111756127 A CN 111756127A CN 201910245482 A CN201910245482 A CN 201910245482A CN 111756127 A CN111756127 A CN 111756127A
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- China
- Prior art keywords
- stator
- stator assembly
- winding
- end plate
- wire
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- 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
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
-
- 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
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- 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
- H02K3/52—Fastening salient pole windings or connections thereto
- H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
- H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
Abstract
The invention discloses a stator assembly, a motor and a washing machine, wherein the stator assembly comprises: a stator formed by a plurality of subunits spliced together, each of the subunits comprising: the tooth part extends along the radial direction of the stator and is provided with two winding interfaces; the coil is wound on the tooth part, and two ends of an electromagnetic wire of the coil are respectively connected into the two winding interfaces; a yoke extending in a circumferential direction of the stator, the yoke being connected to inner ends of the teeth; the insulating end plate is located the terminal surface of stator and lid are established a plurality ofly at least some of subunit, insulating end plate has buried the wire underground and has a plurality of intercommunication interfaces, the wire inserts a plurality ofly respectively the intercommunication interface, and is a plurality of the intercommunication interface is respectively with a plurality of subunit the wire winding interface one-to-one cooperates so that the coil with the wire electricity is connected. The stator assembly disclosed by the invention is simple in process, low in cost and good in adaptability.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a stator assembly, a motor with the stator assembly and a washing machine with the motor.
Background
In the external rotor motor (including DD motor, DDM motor) of the washing machine in the related art, especially the DDM motor for the pulsator, because the radius is small and the curvature is large, the stator lamination cannot adopt a double-row winding mode, and no matter the lamination is typeset by adopting a split stator core or a single-row winding mode, the typesetting utilization rate of the material is not high, which may cause the material waste of the stator lamination. Therefore, each tooth of the stator of the DDM motor can be used as a single punching sheet, and the single punching sheet is inserted and typeset, so that the utilization rate can be improved by using a double-row winding typesetting mode on the basis of a mode of dividing the stator core.
However, the above-mentioned method still adopts the original stator structure and manufacturing process, that is, after each stator punching needs to be spliced one by one to form the whole stator core, the insulating layer is added, and then the winding machine is used for winding, thereby forming the usable stator. Thus, as the stator is divided too much, the number of processes is increased in the installation process, and even if the cost is reduced at the material level, other costs are still increased, and the expected economic target cannot be completely realized; and, when the rotor pole changes, the electric connection mode of winding is different, and the suitability is poor.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the stator assembly has the advantages of simple process, low cost, good adaptability and the like.
The invention also provides a motor with the stator assembly.
The invention also provides a washing machine with the motor.
The stator assembly according to an embodiment of the first aspect of the invention comprises: a stator formed by a plurality of subunits spliced together, each of the subunits comprising: the tooth part extends along the radial direction of the stator and is provided with two winding interfaces; the coil is wound on the tooth part, and two ends of an electromagnetic wire of the coil are respectively connected into the two winding interfaces; a yoke extending in a circumferential direction of the stator, the yoke being connected to inner ends of the teeth; the insulating end plate is located the terminal surface of stator and lid are established a plurality ofly at least some of subunit, insulating end plate has buried the wire underground and has a plurality of intercommunication interfaces, the wire inserts a plurality ofly respectively the intercommunication interface, and is a plurality of the intercommunication interface is respectively with a plurality of subunit the wire winding interface one-to-one cooperates so that the coil with the wire electricity is connected.
According to the stator assembly provided by the embodiment of the invention, the wires are pre-buried in the insulating end plate, so that the stator and the insulating end plate can be simultaneously manufactured, namely, after the teeth of each subunit are wound, a plurality of subunits are spliced into the stator, the wires are injected into the insulating end plate, then, the winding interfaces are butted with the communication interfaces, and the electric connection between the coils and the wires is realized, so that the manufacturing process of the stator assembly is simplified, the cost is reduced, and when the rotor pole is changed, the winding of each tooth is not changed, and only different electric connection modes of the wires in the insulating end plate need to be adapted.
In addition, the stator assembly according to the embodiment of the invention has the following additional technical characteristics:
according to some embodiments of the invention, the two winding interfaces in each of the subunits are respectively located on both sides of the tooth portion in the circumferential direction of the stator and are disposed adjacent to the yoke portion.
According to some embodiments of the present invention, an insulator is disposed on the tooth portion, the coil is wound around the insulator, and the winding port is disposed on the insulator.
According to some embodiments of the invention, a plurality of the communication ports are arranged at intervals along a circumferential direction of the insulating end plate, and each of the communication ports extends along the circumferential direction of the insulating end plate.
According to some embodiments of the present invention, the number of the conducting wires is multiple, and two ends of each conducting wire are respectively connected to different communication interfaces.
According to some embodiments of the invention, the lead comprises a lead wire, one end of the lead wire is connected into the communication interface, and the other end of the lead wire extends out of the insulating end plate.
According to some embodiments of the invention, a groove is provided on the yoke of one of the two adjacent subunits and a protrusion is provided on the yoke of the other, the protrusion fitting within the groove.
Further, the protrusions of the plurality of sub-units protrude toward the same direction in the circumferential direction of the stator.
According to some embodiments of the invention, the insulating end plate is ring-shaped and covers the yoke portions of the plurality of sub-units.
According to some embodiments of the present invention, the number of the insulating end plates is two, and the insulating end plates are respectively located at two axial sides of the stator, and the conductive wires are embedded in at least one of the insulating end plates.
An electrical machine according to an embodiment of the second aspect of the invention comprises a stator assembly according to an embodiment of the first aspect of the invention.
According to the motor provided by the embodiment of the invention, the stator assembly is utilized, so that the process is simple, the cost is low, and the adaptability is good.
A washing machine according to an embodiment of the third aspect of the present invention includes the motor according to the embodiment of the second aspect of the present invention.
According to the washing machine provided by the embodiment of the invention, the motor is utilized, the process is simple, the cost is low, and the adaptability is good.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a stator assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an insulation end plate of a stator assembly according to an embodiment of the present invention.
Reference numerals:
Insulating end plate 200, wire 201, communication interface 202, lead-out wire 203.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A stator assembly according to an embodiment of the first aspect of the invention is described below with reference to the drawings.
As shown in fig. 1 and 2, a stator assembly according to an embodiment of the present invention includes: a stator 100 and an insulating end plate 200.
Specifically, the stator 100 is formed by splicing a plurality of sub-units 110, that is, the plurality of sub-units 110 are arranged along the circumferential direction of the stator 100 and connected to each other. Each subunit 110 includes: a tooth portion 111 extending in the radial direction of the stator 100, a coil 112, and a yoke portion 113 extending in the circumferential direction of the stator 100. The teeth 111 are provided with two winding interfaces 101. The coil 112 is wound around the tooth 111, and both ends of the electromagnetic wire of the coil 112 are connected to the two winding ports 101, respectively. Yoke portions 113 are connected to inner ends of the tooth portions 111, for example, the yoke portions 113 are arc-shaped, and the yoke portions 113 of two adjacent subunits 110 are spliced together.
It should be noted that, in the description of the present invention, the "inner end" refers to an end toward the center of the stator 100, and similarly, the "outer end" refers to an end away from the center of the stator 100.
The insulating end plate 200 is disposed on an end surface of the stator 100, the insulating end plate 200 covers at least a portion of the plurality of sub-units 110, for example, the insulating end plate 200 has a ring shape, and the insulating end plate 200 covers the yoke portions 113 of the plurality of sub-units 110, thereby achieving better insulation. The insulating end plate 200 has a plurality of communication ports 202 embedded therein, the insulating end plate 200 has the plurality of communication ports 202, the wires 201 are respectively connected to the plurality of communication ports 202, and the plurality of communication ports 202 are respectively matched with the winding ports 101 of the plurality of sub-units 110 in a one-to-one correspondence manner so as to electrically connect the coils 112 to the wires 201. That is, each communication port 202 mates with two winding ports 101 of one subunit 110, and the two winding ports 101 of each subunit 110 mate with one communication port 202.
Therefore, when each subunit 110 is formed and the insulating end plate 200 is molded, the winding interface 101 of each subunit 110 can be directly butted with the communication interface 202 of the insulating end plate 200, and the communication interface 202 is electrically connected with the lead 201, and the winding interface 101 is electrically connected with the coil 112, so that the coil 112 and the lead 201 can be electrically connected.
According to the stator assembly of the embodiment of the invention, the conducting wires 201 are embedded in the insulating end plate 200, so that the stator 100 and the insulating end plate 200 can be manufactured at the same time without waiting, namely, the manufacture of the stator 100 and the manufacture of the insulating end plate 200 can be independent and do not interfere with each other. Specifically, after the teeth 111 of each subunit 110 are wound, the subunits 110 are spliced into the stator 100, the wires 201 are injected into the insulating end plate 200, and then the winding interfaces 101 are butted with the communication interfaces 202 to electrically connect the coils 112 with the wires 201, so that the manufacturing process of the stator assembly is simplified, the cost is reduced, and when the rotor pole is changed, the winding of each tooth 111 is not changed, and only different electrical connection modes of the wires 201 in the insulating end plate 200 need to be adapted (namely, only the arrangement of the wires 201 is changed, and the winding mode of the winding machine does not need to be changed).
According to some embodiments of the present invention, as shown in fig. 1, two winding interfaces 101 of each subunit 110 are respectively located at both sides of the tooth 111 and adjacent to the yoke portion 113 in the circumferential direction of the stator 100, and thus, the docking of the winding interfaces 101 with the communication interface 202 is facilitated.
According to some embodiments of the present invention, as shown in fig. 1, the tooth 111 is provided with an insulator 114, the coil 112 is wound around the insulator 114, and the winding interface 101 is provided on the insulator 114, so as to improve insulation reliability and facilitate connection of the magnet wire to the winding interface 101.
As shown in fig. 1, the subunit 110 further includes: and pole shoes 115 extending along the circumferential direction of the stator 100, and the middle portions of the pole shoes 115 are connected to the outer ends of the tooth portions 111, so that the pole shoes 115 and the tooth portions 111 are configured into a general "T" shape together, thereby facilitating uniform magnetic field distribution.
According to some embodiments of the present invention, as shown in fig. 2, a plurality of communication interfaces 202 are arranged at intervals along the circumference of the insulating end plate 200, and each communication interface 202 extends along the circumference of the insulating end plate 200, so as to facilitate the connection of the wires 201 with the communication interfaces 202 and the butt joint of the communication interfaces 202 with the winding interfaces 101. For example, the communication interface 202 may be linear or arc, and both ends of the communication interface 202 may be respectively provided with a protruding point or an access hole, into which the wire 201 may be accessed.
According to some embodiments of the present invention, as shown in fig. 2, there are a plurality of wires 201, and two ends of each wire 201 are respectively connected to different communication interfaces 202, so that the plurality of wires 201 and the coils 112 of the plurality of subunits 110 together form a complete loop.
According to some embodiments of the present invention, as shown in fig. 2, the lead 201 includes a lead 203, and one end of the lead 203 is connected to the communication interface 202 and the other end extends out of the insulating end plate 200 to achieve connection with the circuit.
According to some embodiments of the present invention, as shown in fig. 1, a yoke portion 113 of one of two adjacent subunits 110 is provided with a groove and a yoke portion 113 of the other is provided with a protrusion 102, and the protrusion 102 is fitted in the groove, so that the yoke portions 113 of two adjacent subunits 110 are spliced together, thereby realizing splicing of two adjacent subunits 110.
Further, as shown in fig. 1, the protrusions 102 of the plurality of sub-units 110 protrude in the same direction along the circumferential direction of the stator 100, thereby facilitating the splicing operation and facilitating automation.
According to some embodiments of the present invention, two insulating end plates 200 are respectively located at two axial sides of the stator 100, and the conducting wires 201 are embedded in at least one insulating end plate 200, so that two end surfaces of the stator 100 can be insulated, and reliability is higher.
A stator assembly according to one embodiment of the present invention is described below with reference to the accompanying drawings.
The single tooth of the stator 100 is a single sub-unit 110 formed by stacking in the axial direction, after the insulating member 114 is added to the tooth 111 of each sub-unit 110, winding is performed on each sub-unit 110 in the same manner, and both ends of the magnet wire are respectively connected to two fixed winding interfaces 101 on the insulating member 114, where the winding interfaces 101 may be holes or protrusions. Thus, a plurality of sub-units 110 are formed, the sub-units 110 are substantially one-N times of the stator 100, and a stator 100 can be formed by the N sub-units 110, in this case, the stator 100 lacks the insulating material of the yoke portion and the connecting wires for connecting the coils 112 in the winding compared with the complete assembly in the related art.
Meanwhile, the wires 201 connected according to the preset electrical connection relationship are directly embedded (for example, conductive material is injected) in the insulating end plate 200, a communication interface 202 is further provided at a position corresponding to the winding interface 101, the communication interface 202 can be electrically connected with the winding structure, and after the insulating end plate 200 is connected with the stator 100, the coils 112 are conducted with each other through the wires 201 in the insulating end plate 200, so that a complete winding loop is formed.
It is understood that the above-described fabrication process of the stator 100 and the fabrication process of the insulating end plate 200 may be separately performed.
Therefore, according to the stator assembly provided by the embodiment of the invention, the problem of high process difficulty of the split stator 100 core in the related art is solved; the adaptability to the rotor can be increased, namely, when the rotor pole is changed, the winding rule of the winding is not changed, only different insulation end plates 200 are needed to be adapted, and the electric connection mode of the wires 201 in the insulation end plates 200 is changed.
An electrical machine according to an embodiment of the second aspect of the invention comprises a stator assembly according to an embodiment of the first aspect of the invention.
According to the motor provided by the embodiment of the invention, the stator assembly is utilized, so that the process is simple, the cost is low, and the adaptability is good.
Other constructions and operations of the motor according to embodiments of the invention are known to those skilled in the art and will not be described in detail here.
A washing machine according to an embodiment of the third aspect of the present invention includes the motor according to the embodiment of the second aspect of the present invention.
According to the washing machine provided by the embodiment of the invention, the motor is utilized, the process is simple, the cost is low, and the adaptability is good.
Other configurations and operations of the washing machine according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. The first feature being "on," "over" and "above" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific embodiment," "an example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A stator assembly, comprising:
a stator formed by a plurality of subunits spliced together, each of the subunits comprising:
the tooth part extends along the radial direction of the stator and is provided with two winding interfaces;
the coil is wound on the tooth part, and two ends of an electromagnetic wire of the coil are respectively connected into the two winding interfaces;
a yoke extending in a circumferential direction of the stator, the yoke being connected to inner ends of the teeth;
the insulating end plate is located the terminal surface of stator and lid are established a plurality ofly at least some of subunit, insulating end plate has buried the wire underground and has a plurality of intercommunication interfaces, the wire inserts a plurality ofly respectively the intercommunication interface, and is a plurality of the intercommunication interface is respectively with a plurality of subunit the wire winding interface one-to-one cooperates so that the coil with the wire electricity is connected.
2. The stator assembly of claim 1, wherein the two winding interfaces in each of the subunits are respectively located on both sides of the tooth portion in a circumferential direction of the stator and are disposed adjacent to the yoke portion.
3. The stator assembly of claim 1, wherein an insulator is disposed on the teeth, the coil is wound around the insulator, and the winding port is disposed on the insulator.
4. The stator assembly of claim 1, wherein a plurality of the communication ports are spaced circumferentially along the insulating end plate, each of the communication ports extending circumferentially along the insulating end plate.
5. The stator assembly of claim 1, wherein the plurality of wires are connected to different communication ports at two ends of each wire.
6. The stator assembly of claim 1, wherein the wires comprise lead-out wires having one end that is connected to the communication interface and another end that extends out of the insulating end plate.
7. The stator assembly of claim 1, wherein a groove is provided on the yoke portion of one of the adjacent two sub-units and a protrusion is provided on the yoke portion of the other, the protrusion fitting within the groove.
8. The stator assembly of claim 7 wherein the lobes of a plurality of the subunits project in the same direction in the circumferential direction of the stator.
9. The stator assembly of claim 1, wherein the insulating end plate is ring-shaped and covers the yoke portions of a plurality of the subunits.
10. The stator assembly of any of claims 1-9, wherein the number of the insulation end plates is two and located on each axial side of the stator, and the wires are embedded in at least one of the insulation end plates.
11. An electrical machine comprising a stator assembly according to any of claims 1-10.
12. A washing machine characterized by comprising the motor according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910245482.XA CN111756127B (en) | 2019-03-28 | 2019-03-28 | Stator module, motor and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910245482.XA CN111756127B (en) | 2019-03-28 | 2019-03-28 | Stator module, motor and washing machine |
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| Publication Number | Publication Date |
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| CN111756127A true CN111756127A (en) | 2020-10-09 |
| CN111756127B CN111756127B (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910245482.XA Active CN111756127B (en) | 2019-03-28 | 2019-03-28 | Stator module, motor and washing machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100033044A1 (en) * | 2008-08-08 | 2010-02-11 | Mitsubishi Electric Corporation | Motor for an electric power steering apparatus |
| CN102738970A (en) * | 2011-04-15 | 2012-10-17 | 阿斯莫有限公司 | Bus bar device, stator, motor and manufacturing method for stator |
| CN205647087U (en) * | 2016-03-24 | 2016-10-12 | 天津市神龙自动化机械股份有限公司 | Novel motor stator winding end of a thread connecting row |
| CN208479317U (en) * | 2018-07-06 | 2019-02-05 | 广东帕尔福电机股份有限公司 | Brshless DC motor, motor stator and its conflux disk |
| CN109391066A (en) * | 2017-08-10 | 2019-02-26 | 德昌电机(深圳)有限公司 | A kind of motor |
-
2019
- 2019-03-28 CN CN201910245482.XA patent/CN111756127B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100033044A1 (en) * | 2008-08-08 | 2010-02-11 | Mitsubishi Electric Corporation | Motor for an electric power steering apparatus |
| CN102738970A (en) * | 2011-04-15 | 2012-10-17 | 阿斯莫有限公司 | Bus bar device, stator, motor and manufacturing method for stator |
| CN205647087U (en) * | 2016-03-24 | 2016-10-12 | 天津市神龙自动化机械股份有限公司 | Novel motor stator winding end of a thread connecting row |
| CN109391066A (en) * | 2017-08-10 | 2019-02-26 | 德昌电机(深圳)有限公司 | A kind of motor |
| CN208479317U (en) * | 2018-07-06 | 2019-02-05 | 广东帕尔福电机股份有限公司 | Brshless DC motor, motor stator and its conflux disk |
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| Publication number | Publication date |
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| CN111756127B (en) | 2022-03-25 |
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