Patent Application
20220320983
The present invention claims priority under 35 U.S.C. § 119 to Chinese Application No. 202110346143.8 filed on Mar. 31, 2021 the entire content of which is incorporated herein by reference.
An example of the present application relates to the mechanical and electrical field, and particularly to a motor and an electrical product.
In a conventional motor structure, a detector and a rotor are positioned in a radial direction, but the positioning in an axial direction is not performed. When the motor rotates at a high speed or is subjected to an impact, a vibration in the axial direction of a detection portion of the detector is likely to occur, which leads to an influence on the detection performance.
It should be noted that the above description of the technical background only describes the technical solution of the present application clearly and thoroughly and facilitates the understanding of those skilled in the art. The above technical solution should not be considered known to those skilled in the art solely because these solutions are described in the related art part of the present application.
One aspect of the example of the present application provides a motor, including:
a rotor that is arranged in a rotatable manner centered on a central axis and has a shaft and a rotor core arranged around the shaft;
a stator arranged so as to face the rotor in a radial direction;
a detector in which at least a portion is located on one side of the rotor core in an axial direction; and
a housing that accommodates the rotor, the stator, and the detector;
wherein the detector has a tubular fixed portion fixed to the rotor and an extending portion extending from an upper side of the fixed portion in the axial direction toward an outer side of the fixed portion in the radial direction; and
the extending portion is located on one side of the rotor core in the axial direction, and at least a portion of the extending portion and the rotor are in contact with each other in the axial direction.
Another aspect of the example of the present application provides an electrical product having the motor according to any one of the above examples.
The above and other elements, features, steps, characteristics and advantages of the present disclosure will become more apparent from the following detailed description of the preferred embodiments with reference to the attached drawings.
The appended drawings are used to provide a further understanding on an example of the present application, and are used to constitute a part of the specification, illustrate an exemplary embodiment of the present application, and explain the principles of the present application along with text description. Obviously, the drawings in the following description are only some examples of the present application, and those skilled in the art may obtain other drawings based on these drawings even without creative labor. In the drawings,
With reference to the drawings, the above-described features and other features of the present application are clarified by the following specification. An exemplary embodiment of the present application, which represents some exemplary embodiments in which the principles of the present application may be adopted, is specifically disclosed in the specification and drawings. It should be understood that the present application is not limited to the described exemplary embodiment, and the present application includes all modifications, variations, and equivalents that fall within the scope of the attached claims.
In the example of the present application, the expression “and/or” includes any one or all combinations of one type or plural types of terms listed in connection therewith. The expression such as “contain”, “include”, “have” and the like refer to the existence of the stated feature, element, component part, or assembly, but do not exclude the presence or addition of one or a plurality of other features, elements, component parts, or assemblies.
In the example of the present application, the singular form such as “one”, “this” or the like may include the plural form. For example, “one kind of” or “one type of” should be broadly understood and is not limited to the meaning of “one”. In addition, the expression “the . . . mentioned above” should be understood to include both the singular form and the plural form unless otherwise specified before and after. Also, the expression “according to” should be understood as “at least partially . . . according to” and the term “based on” should be understood as “at least partially . . . based on” unless otherwise stated before and after.
Note that, in the following description of the present application, for convenience of description, a direction extending along a central axis O of a motor or a direction parallel to the central axis O is referred to as “axial direction”; a direction oriented to an opening of a motor housing from the bottom of the motor housing is referred to as “above”, “upper side”, “upper side in the axial direction” or “one side in the axial direction”; a direction oriented to the bottom of the motor housing from the opening of the motor housing is referred to as “below”, “lower side”, “lower side in the axial direction” or “the other side in the axial direction”; a radius direction centered on the central axis O is referred to as “radial direction”; a direction of getting close to the central axis O is referred to as “inner side in the radial direction”; a direction of getting away from the central axis O is referred to as “outer side in the radial direction”; and a direction surrounding the central axis O is referred to as “circumferential direction”. However, it is worth noting that these are only used for convenience of description and do not limit the orientation of the motor during use and manufacture.
Hereinafter, the embodiment of the example of the present application is described with reference to the drawings.
The example of the present application provides a motor.
According to the example of the present application, by bringing at least a portion of the extending portion of the detector into contact with the rotor in the axial direction, the detector is positioned in the axial direction, the vibration of the detector in the axial direction is avoided, and the stability of the detector is improved.
In the above example, the fixed portion 31 is fixed to the rotor core 12 of the rotor 10, as shown in
In some examples, as shown in
Thereby, the stability of the detector is improved.
In some examples, as shown in
In some examples, as shown in
In some examples, although not shown in the drawing, a lower surface of the rotor core 12 in the axial direction has a second concave portion recessed upward in the axial direction, and the second concave portion and the first concave portion 121 face each other in the axial direction. Besides, a depth of the second concave portion may be set to be the same as a depth of the first concave portion 121. Thereby, the weight of the motor is reduced, and additionally, when the rotor core 12 is arranged, it is not necessary to distinguish between the upper side and the lower side of the rotor core 12, which further facilitates manufacture and installation and saves man-hours.
In some examples, as shown in
In some examples, as shown in
a connection portion 33 extending from the outer side of the extending portion 32 in the radial direction toward one side of the extending portion 32 in the axial direction; and
a detection portion 34 extending from one side of the connection portion 33 in the axial direction toward the outer side of the connection portion 33 in the radial direction, and having a plurality of gaps distributed at equal intervals in a circumferential direction.
In the above example, as shown in
It is worth noting that the above description is only an exemplary description of the configuration of the motor related to the present application, the present application is not limited thereto, and appropriate variations may be made based on each of the above examples. In addition, the above description is only an exemplary description of each member, the present application is not limited thereto, and related techniques may be referred to for the specific contents of each member. In addition, members not shown in
According to the example of the present application, by bringing at least a portion of the extending portion of the detector into contact with the rotor in the axial direction, the detector is positioned in the axial direction, the vibration of the detector in the axial direction is avoided, and the stability of the detector is improved.
An example of the present application provides an electrical product having the motor described in the example of the first aspect. The structure of the motor is described in detail in the example of the first aspect, the contents thereof are incorporated here, and thus the description thereof is omitted here.
In the example of the present application, the electrical product may be any electrical equipment in which a motor is installed For example, the electrical product may be a household electrical appliance such as an indoor unit of an air conditioner, an outdoor unit of an air conditioner, a water supply machine, a washing machine, a vacuum cleaner, a compressor, a blower, and a mixer, may be industrial equipment such as a pump, a conveyor, an elevator, a standard industrial general-purpose mounter, a wind generator, a grinder, a traction motor, or various information processing equipment, and may be each member of an automobile such as an electric power steering system of an automobile, a sunroof adjuster of an automobile, a seat adjuster, a transmission, and a brake device.
Although the present application has been described above in association with the exemplary embodiment, those skilled in the art should understand that these descriptions are all exemplary and are not restrictions on the scope of protection of the present application. Those skilled in the art may make various variations and modifications to the present application based on the gist and principle of the present application, and these variations and modifications are also within the scope of the present application.
The exemplary embodiments of the present application have been described above with reference to the drawings. Many features and advantages of these exemplary embodiments are obvious according to the detailed specification. Therefore, the attached claims are to cover all those features and advantages of these exemplary embodiments that fall within the true gist and scope. Moreover, because those skilled in the art are able to easily conceive of many modifications and changes, the exemplary embodiments of the present application are not limited to the precise structures and operations as illustrated and described, and encompass all suitable modifications and equivalents that fall within the scope thereof.
Features of the above-described preferred embodiments and the modifications thereof may be combined appropriately as long as no conflict arises. While preferred embodiments of the present disclosure have been described above, it is to be understood that variations and modifications will be apparent to those skilled in the art without departing from the scope and spirit of the present disclosure. The scope of the present disclosure, therefore, is to be determined solely by the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202110346143.8 | Mar 2021 | CN | national |
