CN213341797U - Motor and electric product - Google Patents
Motor and electric product Download PDFInfo
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- CN213341797U CN213341797U CN202022152843.7U CN202022152843U CN213341797U CN 213341797 U CN213341797 U CN 213341797U CN 202022152843 U CN202022152843 U CN 202022152843U CN 213341797 U CN213341797 U CN 213341797U
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Abstract
The embodiment of the application provides a motor and electric product, this motor includes rotor and stator, and the stator includes: a stator core, an insulator covering the plurality of teeth of the stator core; a plurality of coils wound around the plurality of teeth portions with an insulating member interposed therebetween; and a bus bar located at one axial side of the stator core, the bus bar having a plurality of claw portions electrically connected to the plurality of coils, the plurality of claw portions being equally divided in a circumferential direction and located at positions of the same radial length; each coil is composed of 1 wire, and two end parts of the wire are positioned on the same side in the radial direction of a tooth part wound by the coil; the insulating part is provided with positioning grooves for guiding two end parts of each wire, each positioning groove comprises a leading-in positioning groove and a leading-out positioning groove, the central angle formed by the circumferential positions of the leading-in positioning groove and the leading-out positioning groove is 180/n, n is the number of the tooth parts, and each claw part and the end part of each coil are positioned on the same radial direction. Therefore, circumferential equal division of the coil terminal is realized through the insulating piece, and the coil terminal is conveniently and electrically connected with each claw part of the bus bar.
Description
Technical Field
The embodiment of the application relates to the field of electromechanics, in particular to a motor and an electric product.
Background
In a conventional motor structure, a coil is wound around each tooth of a stator core, each coil is formed by winding 1 wire, and both ends (lead-in end and lead-out end) of the coil are led out from the same side in the radial direction of the tooth through an insulating member. This results in that the ends of the two coils located in the same slot are closer and the ends of the two coil lead-out wires of the coils wound on the same tooth are further, resulting in that the ends of the coil lead-out wires are not equally divided in the circumferential direction. On the other hand, the claw portions of the bus bar are equally arranged in the circumferential direction, and therefore, when the end portion of the coil and the claw portions of the bus bar are connected, the end portion of the coil needs to be pulled to the claw portions of the bus bar for electrical connection, which is disadvantageous for automation work.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, embodiments of the present invention provide a motor and an electric product, in which a positioning groove is formed in an insulator covering a tooth portion of a stator core, the coil end portion is equally divided in a circumferential direction by arranging coil lead-out wires in the positioning groove, and a bus bar is arranged on one side of the stator in the axial direction, so that claw portions of the bus bar equally divided in the circumferential direction and the coil lead-out wires are located at substantially the same circumferential position, thereby completing electrical connection between the two through an automated operation.
According to an aspect of an embodiment of the present application, there is provided a motor including a rotor rotating centering on a central axis and a stator diametrically opposed to the rotor, the stator including:
a stator core including a core back portion having a ring shape and a plurality of teeth portions extending in a radial direction from the core back portion;
an insulator covering the plurality of teeth;
a plurality of coils wound around the plurality of teeth via the insulator; and
a bus bar located on one side of the stator core in an axial direction, the bus bar having a plurality of claw portions electrically connected to the plurality of coils, the plurality of claw portions being equally divided in a circumferential direction and located at positions of the same radial length;
wherein:
each coil is composed of 1 wire, and two ends of the wire are positioned on the same radial side of a tooth part wound by the coil;
the insulating part is provided with positioning grooves for guiding the two end parts of each lead, each positioning groove comprises an introducing positioning groove and a leading-out positioning groove, the central angle formed by the circumferential positions of the introducing positioning groove and the leading-out positioning groove is 180/n, n is the number of the tooth parts, and each claw part and the end part of each coil are positioned in the same radial direction.
In some embodiments, there is an introduction groove between the introduction positioning groove and the extraction positioning groove, the introduction groove penetrating in a radial direction.
In some embodiments, between the tooth portion and the introducing positioning groove, in the axial direction, there is further a catch groove that extends in the circumferential direction toward a direction close to the introducing positioning groove and axially communicates with the introducing groove, and a width of the catch groove is larger than a width of the introducing groove.
In some embodiments, the lead-in positioning groove extends in an axial direction, is located on an axially upper side of at least a portion of the wire hanging groove, and opens toward a radially outer side.
In some embodiments, a radially outer side of the insulator is formed with a notch that is axially opposite the wire hanging groove.
In some embodiments, the opening of the axially lower side of the introduction positioning groove is enlarged in diameter toward the axially lower side.
In some embodiments, the opening of the axially upper side of the introduction positioning groove is enlarged in diameter toward the axially upper side.
In some embodiments, the edges of the radial opening of the exit detent and/or the entry detent, respectively, are of a slanted configuration such that the radial opening of the exit detent and/or the entry detent tapers towards the interior of the entry detent and/or the exit detent.
In some embodiments, the circumferential width of the introduction groove is tapered from an axially upper side to an axially lower side.
According to another aspect of embodiments of the present application, there is provided an electric product having the motor of any of the embodiments of the foregoing aspect.
One of the beneficial effects of the embodiment of the application lies in: according to the embodiment of the application, the circumferential equal division of the coil terminal is realized through the insulating piece, and the electric connection with each claw part of the bus bar is convenient.
Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of one example of a motor of an embodiment of the present application;
FIG. 2 is an exploded schematic view of the motor shown in FIG. 1;
FIG. 3 is a schematic view of the insulator after winding of the coil;
FIG. 4 is a schematic view of the insulator without the coil wound;
FIG. 5 is an enlarged partial view of the insulator viewed from the radially outer side;
fig. 6 is an enlarged partial view of the insulator viewed from the radially inner side;
fig. 7 is another enlarged partial view of the insulator.
Detailed Description
The foregoing and other features of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the application are disclosed in detail as being indicative of some of the embodiments in which the principles of the application may be employed, it being understood that the application is not limited to the described embodiments, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims.
In embodiments of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.
In the embodiments of the present application, the singular forms "a", "an", and the like may include the plural forms and should be interpreted broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.
In addition, in the following description of the present application, a direction extending along the central axis O of the motor or a direction parallel thereto is referred to as an "axial direction" for convenience of description; a direction from the bottom of the motor toward the cover of the motor is referred to as "upper" or "upper side" or "axially one side"; a direction from the cover portion of the motor toward the bottom portion of the motor is referred to as "lower" or "lower side" or "axially other side"; a radial direction centered on the central axis O is referred to as a "radial direction"; the direction close to the central axis O is referred to as "radially inward"; the direction away from the central axis O is referred to as "radially outward"; the direction around the center axis O is referred to as "circumferential direction". It should be noted that these are for convenience of illustration only and do not limit the orientation of the motor during use and manufacture.
Embodiments of the present application will be described below with reference to the drawings.
Embodiments of the first aspect
The embodiment of the application provides a motor.
Fig. 1 is a schematic view of an example of a motor according to an embodiment of the present application, and fig. 2 is an exploded schematic view of the motor shown in fig. 1, which includes a rotor (not shown) that rotates about a central axis O and a stator that is radially opposite to the rotor, as shown in fig. 1 and 2, the stator including:
a stator core 10 including a core back 11 having a ring shape and a plurality of teeth (not shown in fig. 1 and 2) extending radially from the core back 11;
an insulator 20 covering the plurality of teeth;
a plurality of coils 30 wound around the plurality of teeth via the insulator 20; and
and a bus bar 40 positioned on one axial side of the stator core 10, the bus bar 40 having a plurality of claw portions 41 connected to the plurality of coils 30. For convenience of explanation, only one pawl portion 41 is indicated by reference numerals in fig. 1 and 2, and the plurality of pawl portions 41 are equally divided in the circumferential direction (that is, the plurality of pawl portions 41 are arranged at equal intervals in the circumferential direction) and are located at the same radial length position (that is, the plurality of pawl portions 41 have the same distance from the central axis).
In the present embodiment, each coil 30 is constituted by 1 wire, and both ends (E1 and E2) of the wire are located on the same radial side of the tooth portion around which the coil is wound, for example, both ends are located on the radially outer side or the radially inner side of the tooth portion around which the coil 30 is wound.
Fig. 3 is a schematic view of the insulator 20 after the coil 30 is wound, fig. 4 is a schematic view of the insulator 20 without the coil 30 being wound, fig. 5 is a partially enlarged schematic view of the insulator 20 as viewed from the radially outer side, and fig. 6 is a partially enlarged schematic view of the insulator 20 as viewed from the radially inner side. As shown in fig. 4 to 6, in the present embodiment, the insulating member 20 has positioning grooves for guiding both end portions of each wire, including a lead-in positioning groove 21 and a lead-out positioning groove 22. As shown in fig. 2, the central angle formed by the circumferential positions of the lead-in positioning groove 21 and the lead-out positioning groove 22 is 180/n, n is the number of teeth, and each claw portion 41 is located in the same radial direction as the end portion of each coil 30.
With this structure, the circumferential equal division of the end portion of the coil 30 is achieved by the insulator 30, and the electrical connection between the end portion of the coil 30 and each claw portion 41 of the bus bar 40 is facilitated.
In some embodiments, as shown in fig. 5 and 6, there is an introduction groove 23 between the introduction positioning groove 21 and the exit positioning groove 22, the introduction groove 23 penetrating in the radial direction. From this structure, the inlet wire is convenient for.
In some embodiments, as shown in fig. 5 and 6, there is also a wire hanging groove 24 between the tooth portion and the lead-in positioning groove 21 in the axial direction, the wire hanging groove 24 extends in the circumferential direction toward the direction close to the lead-out positioning groove 22 (the arrow direction shown in fig. 5 and 6) and is in axial communication with the lead-in groove 23, and the width of the wire hanging groove 24 is larger than the width of the lead-in groove 23. That is, the thread hanging groove 24 is located at an axially lower side of the introduction positioning groove 21 and at an axially upper side of the tooth portion, that is, in the axial direction, a gap between the tooth portion and the introduction positioning groove 21 constitutes the thread hanging groove 24, thereby being structured to facilitate the thread hanging at the time of winding.
Fig. 7 is another partially enlarged view of the insulating member 20, showing a state where the wire is hung while the wire constituting the coil 30 is wound through the lead-in positioning groove 21 and the wire hanging groove 24.
In some embodiments, as shown in fig. 5, the lead-in positioning groove 21 extends in the axial direction, is located on the axially upper side of at least a part of the wire hanging groove 24, and opens toward the radially outer side. With this structure, it is convenient to position the lead-in E1 of the coil 30 to the insulator 20.
In some embodiments, as shown in fig. 5 to 7, the radially outer side of the insulator 20 is formed with a notch 25, and the notch 25 is axially opposed to the wire hanging groove 24. With this structure, the lead-in end E1 of the coil 30 is easily disposed in the lead-in positioning groove 21.
In some embodiments, as shown in fig. 5, the opening of the axially lower side of the introduction positioning groove 21 is enlarged in diameter toward the axially lower side, as indicated by the broken-line arrow in the lower side in fig. 5, that is, the axially lower side of the introduction positioning groove 21 is formed in the shape of a trumpet opening. With this structure, the introduction end E1 of the coil 30 is facilitated to enter the introduction positioning groove 21.
In some embodiments, as shown in fig. 5, the opening of the axially upper side of the introduction positioning groove 21 is expanded in diameter toward the axially upper side, as indicated by the dotted arrow of the upper side in fig. 5, that is, the axially upper side of the introduction positioning groove 21 is formed in the shape of a bell mouth. With this structure, the end E1 of the lead-in wire and the end of the lead-out wire of the lead wire constituting the coil 30 are connected to the claw portion 41 of the bus bar 40.
In some embodiments, as shown in fig. 5, the edge ED1 of the radial opening of the introduction positioning slot 21 is of an inclined configuration such that the radial opening of the introduction positioning slot 21 tapers toward the interior of the introduction positioning slot. With this structure, it is convenient to push the end of the coil 30 into the introduction positioning groove 21.
In some embodiments, as shown in fig. 6, the edge ED2 of the radial opening of the exit positioning slot 22 is of a slanted configuration such that the radial opening of the exit positioning slot 22 tapers toward the interior of the exit positioning slot 22. With this structure, the end of the coil 30 is conveniently pushed into the lead-out positioning groove 22.
In some embodiments, both the introducing positioning groove 21 and the extracting positioning groove 22 may have the above-described inclined structure, or only the introducing positioning groove 21 may have the above-described inclined structure, or only the extracting positioning groove 22 may have the above-described inclined structure.
It is to be noted that the above merely exemplifies the structure of the motor related to the present application, but the present application is not limited thereto, and appropriate modifications may be made on the basis of the above respective embodiments. In addition, the above is only an exemplary description of each component, but the present application is not limited thereto, and the specific content of each component may also refer to the related art; it is also possible to add components not shown in fig. 1 to 7 or to reduce one or more components in fig. 1 to 7. Regarding other configurations and structures of the motor, reference may be made to the related art, and description thereof is omitted here.
According to the embodiment of the application, the positioning grooves of the coil end parts which are equally divided in the axial direction are arranged on the insulating piece covering the tooth parts of the stator core, the coil leading-out wires are arranged in the positioning grooves, so that the coil end parts are equally divided in the circumferential direction, the bus bars are arranged on one side of the stator in the axial direction, the claw parts of the bus bars which are equally divided in the circumferential direction and the coil leading-out wires are located at the same circumferential position, and therefore the coil and the coil can be electrically connected through automatic operation.
Embodiments of the second aspect
Embodiments of the present application provide an electrical product having a motor as described in embodiments of the first aspect. Since the structure of the motor has been described in detail in the embodiment of the first aspect, the contents thereof are incorporated herein, and the description thereof is omitted here.
In the embodiment of the present invention, the electric product may be any electric device provided with a motor, for example, an indoor unit of an air conditioner, an outdoor unit of an air conditioner, a water dispenser, a washing machine, a sweeper, a compressor, a blower, a mixer, or other household appliances, or an industrial device such as a pump, a conveyor, an elevator, a standard industrial universal machine, a wind power generator, a grinding machine, a traction motor, or various information processing devices, or may be various parts of an automobile, such as an automobile electric power steering system, an automobile sunroof adjusting part, a seat adjusting part, a transmission, a brake device, or the like.
The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the spirit and principles of the application and are within the scope of the application.
Preferred embodiments of the present application are described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments that fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the present application to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
Claims (10)
1. A motor including a rotor that rotates centering on a center axis and a stator that is diametrically opposed to the rotor, the stator comprising:
a stator core including a core back portion having a ring shape and a plurality of teeth portions extending in a radial direction from the core back portion;
an insulator covering the plurality of teeth;
a plurality of coils wound around the plurality of teeth via the insulator; and
a bus bar located on one side of the stator core in an axial direction, the bus bar having a plurality of claw portions electrically connected to the plurality of coils, the plurality of claw portions being equally divided in a circumferential direction and located at positions of the same radial length;
the method is characterized in that:
each coil is composed of 1 wire, and two ends of the wire are positioned on the same radial side of a tooth part wound by the coil;
the insulating part is provided with positioning grooves for guiding the two end parts of each lead, each positioning groove comprises an introducing positioning groove and a leading-out positioning groove, the central angle formed by the circumferential positions of the introducing positioning groove and the leading-out positioning groove is 180/n, n is the number of the tooth parts, and each claw part and the end part of each coil are positioned in the same radial direction.
2. The motor of claim 1,
an introduction groove is provided between the introduction positioning groove and the extraction positioning groove, and the introduction groove penetrates in the radial direction.
3. The motor of claim 2,
between the tooth portion and the lead-in positioning groove in the axial direction, there is further a catch groove that extends in the circumferential direction toward a direction close to the lead-out positioning groove and axially communicates with the lead-in groove, and that has a width greater than that of the lead-in groove.
4. The motor of claim 3,
the lead-in positioning groove extends in the axial direction, is located on the axial upper side of at least one part of the wire hanging groove and is opened towards the radial outer side.
5. The motor of claim 3,
a notch is formed in the radial outer side of the insulating piece, and the notch is opposite to the wire hanging groove in the axial direction.
6. The motor of claim 4,
the opening of the axial lower side of the introduction positioning groove is expanded in diameter toward the axial lower side.
7. The motor of claim 1,
the opening of the axial upper side of the lead-in positioning groove expands in diameter towards the axial upper side.
8. The motor of claim 2,
the edge of the radial opening of the leading-out positioning groove and/or the leading-in positioning groove is of an inclined structure respectively, so that the radial opening of the leading-out positioning groove and/or the leading-in positioning groove is gradually reduced towards the inside of the leading-in positioning groove and/or the leading-out positioning groove.
9. The motor of claim 2,
the circumferential width of the introduction groove is gradually reduced from the axially upper side to the axially lower side.
10. An electrical product, characterized in that the electrical product has a motor according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022152843.7U CN213341797U (en) | 2020-09-27 | 2020-09-27 | Motor and electric product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022152843.7U CN213341797U (en) | 2020-09-27 | 2020-09-27 | Motor and electric product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213341797U true CN213341797U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022152843.7U Active CN213341797U (en) | 2020-09-27 | 2020-09-27 | Motor and electric product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213341797U (en) |
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- 2020-09-27 CN CN202022152843.7U patent/CN213341797U/en active Active
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