CN209844657U - Novel motor stator and motor - Google Patents
Novel motor stator and motor Download PDFInfo
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- CN209844657U CN209844657U CN201920329470.0U CN201920329470U CN209844657U CN 209844657 U CN209844657 U CN 209844657U CN 201920329470 U CN201920329470 U CN 201920329470U CN 209844657 U CN209844657 U CN 209844657U
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Abstract
The utility model relates to the technical field of motor correlation, in particular to a novel motor stator and a motor, wherein the novel motor stator comprises a stator core and a plurality of stator coils; the stator core is a hollow cylinder and is provided with a plurality of coil slots arranged along the long axis of the stator core, the plurality of coil slots are distributed at equal intervals along the circumferential direction of the stator core, and the cross section of each coil slot is trapezoidal; stator coil along stator core's circumference evenly distributed, every stator coil include first winding and the second winding that links to each other with first winding, and first winding and second winding set up respectively in two adjacent coil slots, and first winding and second winding cross section all are trapezoidal, two adjacent stator coil interconnect, the motor includes the aforesaid novel motor stator. The utility model discloses can the maximize utilize the effective groove area of motor, improve the effective groove fullness rate and the power density of motor.
Description
Technical Field
The utility model relates to a relevant technical field of motor, in particular to novel motor stator and motor.
Background
With the development of economy and the progress of society, people pay more and more attention to the environment of living at one's side and have stronger and stronger awareness of protecting the environment, so that the reasonable use of a plurality of environment-friendly energy sources and clean energy sources is paid more and more attention to and arranged on a schedule; china also has more and more policies, and encourages the research and development of new energy automobiles, particularly the requirement of the new energy automobiles on the drive motor is higher and higher in research and development.
In the market, most of motors adopt enameled round copper wires as coils to be applied to driving motors, the enameled round copper wires are difficult to meet the density requirement of driving electric power, and the performance of the enameled round copper wires reaches the bottleneck, so that the concept that the slot filling rate of the motors is more and the winding density is higher under the condition of mass production is proposed. Compared with the round copper wire, the square conductor enameled wire can be far superior to the enameled round copper wire as the motor of coil on the full rate of groove, the resistance of winding is reduced, and then the copper loss of motor is effectively reduced and heating is improved, thereby the working efficiency of motor is improved, the square conductor motor on the current market, in order to adapt to batch production, the cross section is often used as the enameled wire or the film covered wire of rectangle form, the manufacture is simpler, thereby the batch manufacture can be carried out more easily through equipment.
In order to improve the groove filling factor of motor on the market, the common motor winding that adopts square conductor enameled wire walks the line mode, so with sacrificing partial motor performance as the cost, thereby improve production efficiency, wherein mainly refer to the parallel teeth scheme of enamelled round copper wire motor by reference, can improve the effective groove area of motor, reduce the line resistance of motor under the same groove filling factor, the motor of square conductor enameled wire is in order to adapt to current technology, also adopt the parallel groove scheme, though effectively reduce the effective groove area of motor, the groove filling factor that reaches the motor of square conductor enameled wire is superior to the motor of enamelled round copper wire, but because the reduction of effective groove area, make the effective groove filling factor of square conductor enameled wire have not showing improvement than round copper wire motor.
Therefore, a novel motor stator is required to be developed at present, the effective slot area of the motor can be reduced, the slot fullness rate of the motor is improved, the power density of the motor is increased, the responsibility of a coil winding is reduced, and the mass production manufacturability of the novel motor stator is improved.
SUMMERY OF THE UTILITY MODEL
In view of the above problems in the prior art, an object of the present invention is to provide a novel motor stator and a motor, which employs trapezoidal coil slots and stator coils, thereby reducing the effective slot area of the motor, effectively utilizing the slot area of the motor, further improving the effective slot fullness rate of the motor, and improving the power density of the motor; the complexity of batch production equipment of the novel motor stator is reduced, and the manufacturability of batch production of the novel motor stator is increased.
In order to solve the problems, the utility model provides a novel motor stator, which comprises a stator core and a plurality of stator coils; the stator core is a hollow cylinder and is provided with a plurality of coil slots arranged along the long axis of the stator core, the plurality of coil slots are distributed at equal intervals along the circumferential direction of the stator core, and the cross section of each coil slot is trapezoidal; the stator coils are uniformly distributed along the circumferential direction of the stator core, each stator coil comprises a first winding and a second winding connected with the first winding, the first winding and the second winding are respectively arranged in two adjacent coil slots, the cross sections of the first winding and the second winding are trapezoidal, and the two adjacent stator coils are connected with each other.
Further, the coil slots are gradually increased from the inner surface of the stator core to the outside of the outer surface of the stator core.
Further, the cross-sectional areas of the first winding and the second winding are increased from the inner surface of the stator core to the outer surface of the stator core.
Further, the first winding and the second winding are made of a number of conductors in a loop.
Further, each conductor all includes leading-out terminal, turn portion and connecting portion, leading-out terminal with connecting portion pass through turn portion connects, connecting portion are located the coil groove.
Further, the leading-out end of the first winding is connected with the leading-out end of the second winding.
Further, the connection portions of the first windings are connected to the connection portions of the adjacent second windings in a staggered manner.
Further, the conductor is an enameled wire conductor, and the enameled wire conductor is in a flat wire shape.
The utility model discloses another aspect has protected a motor, include novel motor stator.
Because of the technical scheme, the utility model discloses following beneficial effect has:
1) the utility model discloses a novel motor stator and motor adopts trapezoidal coil groove and stator coil, reduces the effective groove area of motor, effectively utilizes the groove area of motor, further improves the effective groove fullness rate of motor, improves the power density of motor.
2) The utility model discloses a novel motor stator and motor adopts trapezoidal coil slot and stator coil, reduces the complicacy of novel motor stator's batch production equipment, increases novel motor stator batch production's manufacturability.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a novel motor stator provided by an embodiment of the present invention.
In the figure: 1-stator core, 11-coil slot, 2-stator coil, 21-first winding, 22-second winding.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present 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. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Example one
As shown in fig. 1, the first embodiment provides a novel motor stator, which includes a stator core 1 and a plurality of stator coils 2, wherein the stator core 1 is cylindrical and has a hollow structure, the stator core 1 has a plurality of coil slots 11 disposed along a long axis of the stator core 1, the plurality of coil slots are equidistantly distributed along a circumferential direction of the stator core 1, the plurality of coil slots 11 are equidistantly distributed along the stator core 1, the number of coil slots 11 is greater than or equal to 4, each coil slot 11 penetrates through the stator core 1 along the stator core 1, each coil slot 11 is trapezoidal, each coil slot 11 is disposed along an inner circle of the stator core 1, each coil slot 11 is gradually increased from an outer surface of the stator core 1 facing an inner surface of the stator core 1, and an effective slot area of the novel motor stator can be reduced, the effective slot filling rate of the motor is improved.
As shown in fig. 1, each of the stator coils 2 includes a first winding 21 and a second winding 22, the first winding 21 and the second winding 22 each have a trapezoidal cross section, and increase from the inner surface of the stator core 1 to the outer surface of the stator core 1, the first winding 21 is formed by surrounding a plurality of conductors, the second winding 22 is also formed by surrounding a plurality of conductors, and the first winding 21 and the second winding 22 are connected.
Specifically, each conductor is an enameled wire conductor, and the enameled wire conductor is in a flat wire shape. Each conductor comprises a leading-out end, a turning part and a connecting part, the leading-out end is connected with the connecting part through the turning part, and the connecting part is positioned in the coil slot 11.
Specifically, the leading end of the first winding 21 is connected with the leading end of the second winding 22 by welding.
As shown in fig. 1, the first winding 21 and the second winding 22 are respectively disposed in the adjacent coil slots 11, the connecting portion of the first winding 21 extends into the coil slot 11, the connecting portion of the first winding 21 is attached to the inner wall of the coil slot 11, the connecting portion of the second winding 22 extends into the adjacent coil slot 11, and the connecting portion of the second winding 22 is attached to the inner wall of the coil slot 11.
Specifically, the first winding 21 of each stator coil 2 and the adjacent second winding 22 of each stator coil 2 are disposed in the same coil slot 11, each stator coil 2 is provided with the connecting portion of the first winding 21 and the adjacent connecting portion of the second winding 22 in each stator coil 2, the connecting manner is welding connection, and so on, and each stator coil 2 is inserted into each coil slot 11 and can be used in cooperation with the stator core 1, thereby reducing the complexity of the batch production equipment of the novel motor stator and increasing the manufacturability of the batch production of the novel motor stator.
This embodiment one provides a novel motor stator, can adopt trapezoidal coil slot and stator coil, reduces the effective groove area of motor, effectively utilizes the groove area of motor, further improves the effective groove fullness rate of motor, reduces the complicacy of novel motor stator's batch production equipment, increases novel motor stator batch production's manufacturability.
Example two
The second embodiment provides an electric motor, including the above-mentioned novel electric motor stator, the novel electric motor stator includes a stator core 1 and a plurality of stator coils 2, the stator core 1 is cylindrical and has a hollow structure, the stator core 1 has a plurality of coil slots 11 disposed along a long axis of the stator core 1, the plurality of coil slots are equidistantly distributed along a circumferential direction of the stator core 1, the plurality of coil slots 11 are equidistantly distributed along the stator core 1, the number of the coil slots 11 is greater than or equal to 4, each coil slot 11 penetrates through the stator core 1 along the stator core 1, each coil slot 11 is trapezoidal, each coil slot 11 is disposed along an inner circle of the stator core 1, each coil slot 11 is gradually increased from an inner surface of the stator core 1 to an outer surface of the stator core 1, the effective slot area of the novel motor stator can be reduced, and the effective slot fullness rate of the motor is improved.
Specifically, each stator coil 2 includes a first winding 21 and a second winding 22, the first winding 21 and the second winding 22 each have a trapezoidal cross section, and the cross section increases from the inner surface of the stator core 1 to the outer surface of the stator core 1, the first winding 21 is formed by surrounding a plurality of conductors, the second winding 22 is also formed by surrounding a plurality of conductors, and the first winding 21 and the second winding 22 are connected.
Specifically, each conductor is an enameled wire conductor, and the enameled wire conductor is in a flat wire shape. Each conductor comprises a leading-out end, a turning part and a connecting part, the leading-out end is connected with the connecting part through the turning part, and the connecting part is positioned in the coil slot 11.
Specifically, the leading end of the first winding 21 is connected with the leading end of the second winding 22 by welding.
Specifically, the first winding 21 and the second winding 22 are respectively disposed in the adjacent coil slots 11, the connecting portion of the first winding 21 extends into the coil slot 11, the connecting portion of the first winding 21 is attached to the inner wall of the coil slot 11, the connecting portion of the second winding 22 extends into the adjacent coil slot 11, and the connecting portion of the second winding 22 is attached to the inner wall of the coil slot 11.
Specifically, the first winding 21 of each stator coil 2 and the adjacent second winding 22 of each stator coil 2 are disposed in the same coil slot 11, each stator coil 2 is provided with the connecting portion of the first winding 21 and the adjacent connecting portion of the second winding 22 in each stator coil 2, the connecting manner is welding connection, and so on, and each stator coil 2 is inserted into each coil slot 11 and can be used in cooperation with the stator core 1, thereby reducing the complexity of the batch production equipment of the novel motor stator and increasing the manufacturability of the batch production of the novel motor stator.
This embodiment two provides a motor, can adopt trapezoidal coil slot and stator coil, reduces the effective slot area of motor, effectively utilizes the slot area of motor, further improves the effective slot fullness rate of motor, improves the power density of motor, reduces the complicacy of novel motor stator's batch production equipment, increases novel motor stator batch production's manufacturability.
The foregoing description has disclosed fully the embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the claims of the present invention. Accordingly, the scope of the claims of the present invention is not to be limited to the specific embodiments described above.
Claims (9)
1. The novel motor stator is characterized by comprising a stator core (1) and a plurality of stator coils (2);
the stator core (1) is a hollow cylinder, the stator core (1) is provided with a plurality of coil slots (11) arranged along the long axis of the stator core (1), the plurality of coil slots (11) are distributed equidistantly along the circumferential direction of the stator core (1), and the cross section of each coil slot (11) is trapezoidal;
the stator coils (2) are uniformly distributed along the circumferential direction of the stator core (1), each stator coil (2) comprises a first winding (21) and a second winding (22) connected with the first winding (21), the first winding (21) and the second winding (22) are respectively arranged in two adjacent coil slots (11), the cross sections of the first winding (21) and the second winding (22) are trapezoidal, and two adjacent stator coils (2) are connected with each other.
2. A new type of electric machine stator according to claim 1, characterized in that the coil slots (11) are gradually enlarged from the inner surface of the stator core (1) to the outer surface of the stator core (1).
3. The new stator of an electric machine according to claim 1, characterized in that the cross-sectional areas of the first winding (21) and the second winding (22) are each increased from the inner surface of the stator core (1) to the outer surface of the stator core (1).
4. A new stator according to claim 3, characterized in that said first winding (21) and said second winding (22) are made of several conductors around them.
5. The novel motor stator as claimed in claim 4, wherein each conductor comprises a leading end, a turning part and a connecting part, the leading end and the connecting part are connected through the turning part, and the connecting part is located in the coil slot (11).
6. The novel stator of an electric machine according to claim 4, characterized in that the leading-out end of the first winding (21) is connected with the leading-out end of the second winding (22).
7. The new stator of electric machine according to claim 1, characterized in that the connection of the first winding (21) is interleaved with the connection of the adjacent second winding (22).
8. The novel motor stator as claimed in claim 4, wherein the conductor is a wire-coated conductor, and the wire-coated conductor is in a flat wire shape.
9. An electrical machine comprising a novel electrical machine stator according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920329470.0U CN209844657U (en) | 2019-03-15 | 2019-03-15 | Novel motor stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920329470.0U CN209844657U (en) | 2019-03-15 | 2019-03-15 | Novel motor stator and motor |
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| Publication Number | Publication Date |
|---|---|
| CN209844657U true CN209844657U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920329470.0U Active CN209844657U (en) | 2019-03-15 | 2019-03-15 | Novel motor stator and motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087109A (en) * | 2020-09-17 | 2020-12-15 | 安徽省电机产品及零部件质量监督检验中心 | Novel motor winding temperature measurement sensor |
-
2019
- 2019-03-15 CN CN201920329470.0U patent/CN209844657U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087109A (en) * | 2020-09-17 | 2020-12-15 | 安徽省电机产品及零部件质量监督检验中心 | Novel motor winding temperature measurement sensor |
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