CN113078768A

CN113078768A - Motor assembly and electrical equipment

Info

Publication number: CN113078768A
Application number: CN202110394739.5A
Authority: CN
Inventors: 吴兴鑫; 吴超; 陈生
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-07-06

Abstract

The application relates to a motor assembly and electrical equipment. This motor element includes: the motor and the mounting assembly used for mounting the motor on the bearing body, wherein the mounting assembly comprises a first acting piece, the first acting piece is configured on one of the motor or the bearing body and is controlled to generate a first acting force for driving the motor to be connected to the bearing body in a suspending way. When the motor starts to operate, the motor is connected to the bearing body in a suspending mode through the first acting force generated by the first acting piece. At the moment, the motor is not directly connected with the bearing body, and the vibration generated when the motor operates can not be transmitted to the bearing body, so that the bearing body and the motor are prevented from resonating. Thus, the noise generated by the motor assembly during operation is greatly reduced. Compared with the prior art, can be through being connected motor and bearing body suspension, the unable transmission of vibration to the bearing body that produces when the motor is in the operation avoids the noise because of motor and bearing body resonance arouse, provides user's travelling comfort greatly.

Description

Motor assembly and electrical equipment

Technical Field

The application relates to the technical field of household appliances, in particular to a motor assembly and electrical equipment.

Background

The motor in the conventional courtyard machine is installed in an inverted mode, the motor is directly installed on a machine set bottom plate in the courtyard machine through a support, and when the machine set and the motor are both in an operating state, the motor and the machine set are easy to resonate, so that the noise of the courtyard machine is large.

Disclosure of Invention

This application is directed against the big problem of current courtyard machine noise, has provided a motor element and electrical equipment, and this motor element and electrical equipment have the little technological effect of running noise.

An electric machine assembly comprising: the mounting assembly comprises a first acting piece, the first acting piece is arranged on one of the motor or the bearing body and is controlled to generate a first acting force for driving the motor to be connected to the bearing body in a suspending way.

In one embodiment, the first acting element is adapted to provide a levitation signal and/or a levitation medium to one of the motor and the load bearing body that enables the motor to levitate the load bearing body.

In one embodiment, the first acting element comprises a first magnetic part and a second magnetic part, the first magnetic part is configured on the motor, the second magnetic part is configured on the bearing body, and at least one of the first magnetic part and the second magnetic part comprises an electromagnet;

when the first magnetic part and/or the second magnetic part are electrified, a first repulsive force enabling the motor to be connected to the bearing body in a floating mode can be generated between the first magnetic part and the second magnetic part.

In one embodiment, the mounting assembly further includes a mounting leg fixedly connected to the motor and movably connected to the load-bearing body, and the first magnetic part is disposed on the mounting leg;

when the first magnetic part and/or the second magnetic part are/is electrified, the first repulsive force which enables the mounting foot to be connected to the bearing body in a floating mode can be generated.

In one embodiment, the mounting assembly further comprises a mounting post for movably connecting the mounting foot, the mounting post is configured on the bearing body, and the second magnetic part is configured on the mounting post;

when the first magnetic part and/or the second magnetic part are electrified, the first repulsive force which enables the mounting foot to be connected to the mounting column in a suspending mode can be generated.

In one embodiment, one of the mounting leg and the mounting post has a mounting hole penetrating along the axial direction thereof and a supporting end penetrated by the mounting hole, and the other has a rod part movably penetrating through the mounting hole, the rod part has a first end and a second end oppositely arranged along the axial direction thereof, the second end is provided with a limiting part, and the mounting hole is located between the limiting part and the first end;

when the first magnetic part and/or the second magnetic part are/is electrified, the first repulsive force which enables the supporting end to be separated from the limiting part can be generated.

In one embodiment, the motor is configured such that its own central axis is arranged along a preset axis;

the motor assembly further includes a second acting member configured to one of the motor or the weight bearing body and controlled to generate a second acting force that drives the motor to move in any plane perpendicular to the preset axis such that a central axis of the motor is located on the preset axis.

In one embodiment, the second acting element comprises a third magnetic part and a fourth magnetic part, the third magnetic part is configured on the motor, the fourth magnetic part is configured on the bearing body, at least one of the third magnetic part and the fourth magnetic part comprises an electromagnet, and the other comprises an electromagnet or a permanent magnet;

when the third magnetic part and/or the fourth magnetic part are electrified, a second repulsive force which enables the motor to move in any plane perpendicular to the preset axis can be generated.

In one embodiment, the suspension device further comprises a controller and a position sensor, wherein the controller is electrically connected with the position sensor, the position sensor is used for detecting the suspension distance between the motor and the bearing body, and the controller is used for controlling the magnitude of the first acting force generated by the first acting element according to the suspension distance.

In one embodiment, the position sensor is further configured to detect an eccentric distance between an axis of the motor and the preset axis, and to make a central axis of the motor be located on the preset axis according to a magnitude of the second acting force generated by the second acting element from the eccentric distance.

In addition, the embodiment of the application also provides electrical equipment, which comprises a bearing body and the motor assembly provided by any one of the above embodiments.

When the motor assembly is actually operated, when the motor starts to operate, the motor is connected to the bearing body in a suspending way by utilizing the first acting force generated by the first acting piece. At the moment, the motor is not directly connected with the bearing body, and the vibration generated when the motor operates can not be transmitted to the bearing body, so that the bearing body and the motor are prevented from resonating. Thus, the noise generated by the motor in operation is greatly reduced. Compared with the prior art, can be through being connected motor and bearing body suspension, the unable transmission of vibration to the bearing body that produces when the motor is in the operation avoids the noise because of motor and bearing body resonance arouse, provides user's travelling comfort greatly.

Drawings

FIG. 1 is a schematic assembled view of a motor assembly according to an embodiment of the present application;

FIG. 2 is a perspective view of the motor assembly shown in FIG. 1;

FIG. 3 is a schematic view of an embodiment of the present application illustrating the assembly of a mounting foot and a mounting post;

FIG. 4 is a schematic view of a mounting post and a load bearing body according to an embodiment of the present application;

fig. 5 is a schematic view of an arrangement of a fourth magnetic part on a mounting post in an embodiment of the present application.

Description of reference numerals:

a mounting foot 10; a mounting hole 11; a support end 12; a first magnetic part 13; a third magnetic part 14; a mounting post 20; a stopper portion 21; a second magnetic part 22; a fourth magnetic portion 23; a motor 30; a weight body 40; a position sensor 50; a signal receiving section 51; a signal transmitting section 52.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "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 present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

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 at least one such feature. In the description of the present application, "plurality" means a plurality, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, 2, 3 and 4, in an embodiment of the present application, a motor assembly is provided, which includes a motor 30, and a mounting assembly for mounting the motor 30 on a bearing body 40, wherein the mounting assembly includes a first acting element, and the first acting element is configured on one of the motor 30 or the bearing body 40 and is controlled to generate a first acting force for driving the motor 30 to be suspended and connected to the bearing body 40.

In the motor assembly, when the motor 30 starts to operate in actual operation, the motor 30 is connected to the bearing body 40 in a floating manner by using the first acting force generated by the first acting member. At this time, the motor 30 is not directly connected to the bearing body 40, and the vibration generated when the motor 30 operates is not transmitted to the bearing body 40, thereby preventing the bearing body 40 and the motor 30 from resonating. In this way, noise generated by the motor 30 during operation is greatly reduced.

Compared with the prior art, the motor 30 and the bearing body 40 can be connected in a suspension mode, vibration generated when the motor 30 operates can not be transmitted to the bearing body 40, noise caused by resonance of the motor 30 and the bearing body 40 is avoided, and comfort of a user is greatly improved.

Wherein, the bearing body 40 can be the ground, the wall surface, or the machine set of the raise boring machine, etc.

In some embodiments, the first acting element is used to provide one of the motor 30 and the load bearing body 40 with a levitation signal and/or a levitation medium that enables the motor 30 to levitate in connection with the load bearing body 40. The suspension signal can be an electromagnetic signal, a permanent magnetic signal or a high-frequency sound signal, the motor 30 is connected to the bearing body 40 in a magnetic suspension manner under the action of a magnetic force generated by the electromagnetic signal and the permanent magnetic signal, and the motor 30 is connected to the bearing body 40 in an acoustic suspension manner under the action of the high-frequency sound signal. The suspension medium may be suspended particles or air (refer to gas suspension technology and particle beam suspension technology), and the suspension medium enables the motor 30 to be connected to the bearing body 40 in a suspended manner when flowing at a high speed.

In some embodiments, referring to fig. 3, the first acting element includes a first magnetic part 13 and a second magnetic part 22, the first magnetic part 13 is configured to the motor 30, the second magnetic part 22 is configured to the load bearing body 40, and at least one of the first magnetic part 13 and the second magnetic part 22 includes an electromagnet. When the first magnetic part 13 and/or the second magnetic part 22 are energized, a first repulsive force that causes the motor 30 to be levitated and connected to the load bearing body 40 can be generated between the first magnetic part 13 and the second magnetic part 22.

It is understood that the first magnetic part 13 and the second magnetic part 22 may be both electromagnets at the same time, and when both are energized, both ends of each electromagnet can form magnetic poles, and the generation of the first repulsive force is achieved by making the same magnetic poles of the first magnetic part 13 and the second magnetic part 22 opposite. Alternatively, one of the first magnetic part 13 and the second magnetic part 22 is an electromagnet, and the other is a permanent magnet, and when the electromagnet is energized, magnetic poles are formed at two ends of the electromagnet, and the electromagnet and the permanent magnet are arranged oppositely, a first repulsive force can be generated.

At this time, the two magnetic portions generate the first repulsive force to enable the motor 30 to be connected to the bearing body 40 in a floating manner, which facilitates the simplification of the structure of the motor assembly and the reduction of the cost compared with other pair of floating technologies (e.g., air flow floating technology). At least one electromagnet of the two magnetic parts can control the size of the repulsive force generated by the two magnetic parts by the size of the current connected into the electromagnet, so that the suspension height of the motor 30 can be conveniently controlled.

It can be understood that, when the first magnetic part 13 and the second magnetic part 22 are not powered, the motor 30 is directly supported on the load bearing body 40 under the self-gravity effect. When the first magnetic part 13 or the second magnetic part 22 is a permanent magnet, it is in a non-energized state.

In the present embodiment, it is not excluded that both the first magnetic part 13 and the second magnetic part 22 are permanent magnets.

Further, the first magnetic part 13 and the second magnetic part 22 are uniformly arranged around the central axis of the motor 30. At this time, a first magnetic part 13 and a second magnetic part 22 are matched to generate a repulsive force, the first magnetic parts 13 and the second magnetic parts 22 are arranged in a one-to-one correspondence manner to generate a plurality of repulsive forces, and each repulsive force acts on a plurality of positions of the motor 30 or the bearing body 40, so that the motor 30 is more stable during suspension.

In an embodiment, referring to fig. 1, 2 and 3, the mounting assembly further includes a mounting leg 10, the mounting leg 10 is fixedly connected to the motor 30 and movably connected to the load-bearing body 40, the first magnetic portion 13 is disposed on the mounting leg 10, and when the first magnetic portion 13 and/or the second magnetic portion 22 are powered on, a first repulsive force for levitating the mounting leg 10 to the load-bearing body 40 can be generated.

At this time, the motor 30 is movably connected to the load bearing body 40 through the mounting leg 10, and when the first magnetic part 13 and/or the second magnetic part 22 are energized, a first repulsive force generated between the first magnetic part 13 and the second magnetic part 22 repels the mounting leg 10 and the load bearing body 40, so that the mounting leg 10 is suspended, and further, the motor 30 is suspended. Therefore, only one mounting foot 10 needs to be arranged on the motor 30, structural improvement on the motor 30 is not needed, and only structural design is needed to be carried out on the mounting foot 10 to connect the motor 30 and the bearing body 40, so that development cost is reduced.

The movable connection between the mounting foot 10 and the bearing body 40 is not limited, as long as the mounting foot 10 can connect the bearing body 40 and the motor 30, and the mounting foot 10 can have a suspension space with respect to the bearing body 40. Optionally, a groove is provided on the load bearing body 40, the mounting foot 10 can be movably connected in the groove, when the first magnetic part 13 and/or the second magnetic part 22 is powered on, the mounting foot 10 floats in the groove to enable the motor 30 to float, and when the first magnetic part 13 and the second magnetic part 22 are powered off, the mounting foot 10 falls in the groove to connect the motor 30 and the load bearing body 40, so that the motor 30 is supported on the load bearing body 40. Of course, the following embodiments may be adopted.

In a specific embodiment, referring to fig. 3 and 4, the mounting assembly further includes a mounting post 20 for movably connecting the mounting foot 10, the mounting post 20 is configured on the bearing body 40, the second magnetic part 22 is configured with the mounting post 20, and when the first magnetic part 13 and/or the second magnetic part 22 is powered on, a first repulsive force enabling the mounting foot 10 to be connected to the mounting post 20 in a floating manner can be generated.

At this time, when the first magnetic part 13 and/or the second magnetic part 22 are energized, the first repulsive force generated by the first magnetic part 13 and the second magnetic part 22 makes the mounting leg 10 connect to the mounting post 20 in a floating manner, so that the motor 30 floats relative to the load-bearing body 40. When the first magnetic part 13 and the second magnetic part 22 are not energized, the mounting foot 10 is directly supported on the mounting post 20, so that the motor 30 is supported on the load-bearing body 40. In this way, by disposing the mounting post 20 on the load bearing body 40 and disposing the mounting foot 10 movably connected to the mounting post 20, it is not necessary to provide a structure such as the above-mentioned groove on the load bearing body 40, so that the motor assembly can be applied to various load bearing bodies 40.

In the embodiment, referring to fig. 3, one of the mounting leg 10 and the mounting post 20 has a mounting hole 11 penetrating along its axial direction and a supporting end 12 penetrated through by the mounting hole 11, and the other has a rod movably penetrating through the mounting hole 11, the rod has a first end and a second end opposite to each other along its axial direction, the second end is provided with a limiting portion 21, and the mounting hole 11 is located between the limiting portion 21 and the first end. When the first magnetic part 13 and/or the second magnetic part 22 are energized, a first repulsive force that separates the support end 12 from the stopper part 21 can be generated.

In practical operation, when the first magnetic part 13 and/or the second magnetic part 22 are energized, the first repulsive force generated by the first magnetic part 13 and the second magnetic part 22 separates the support end 12 from the limiting part 21, so that the mounting leg 10 is connected to the mounting post 20 in a floating manner, and the motor 30 is connected to the bearing body 40 in a floating manner. When the first magnetic part 13 and the second magnetic part 22 are not powered on, the supporting end 12 is supported on the limiting part 21, so that the mounting foot 10 is directly connected with the mounting post 20, the motor 30 is further directly connected with the bearing body 40, and the motor 30 is supported on the bearing body 40.

Illustratively, the mounting foot 10 has a mounting hole 11 and a supporting end 12, the mounting post 20 has a limiting portion 21 and a first end, the first end of the mounting post 20 is fixed to the bearing body 40, and the motor 30 is suspended from the bearing body 40 through the mounting assembly. When the first magnetic part 13 and the second magnetic part 22 are not energized and the first repulsive force is not generated, the support end 12 of the mounting leg 10 is pressed against the limiting part 21 under the self-weight of the motor 30, the mounting leg 10 is not separated from the mounting post 20 under the limitation of the limiting part 21, and the motor 30 can be suspended from the load bearing body 40. When the first magnetic part 13 and/or the second magnetic part 22 are energized, the first repulsive force separates the support end 12 from the limiting part 21, the rod part of the mounting post 20 axially moves in the mounting hole 11, and the motor 30 is driven to axially move and suspend.

Of course, in other embodiments, the second end of the mounting post 20 may be fixedly connected to the bearing body 40, the mounting foot 10 is limited between the first end and the limiting portion 21, and the motor 30 is mounted above the bearing body 40 through a mounting assembly, which is not described in detail.

Further, when the mounting leg 10 has the support end 12 and the mounting post 20 has the stopper portion 21, the first magnetic portion 13 is disposed at the support end 12 of the mounting leg 10, and the second magnetic portion 22 is disposed at the stopper portion 21 of the mounting post 20. When the mounting post 20 has the support end 12 and the mounting leg 10 has the stopper 21, the first magnetic part 13 is disposed at the stopper 21 of the mounting leg 10 and the second magnetic part 22 is disposed at the support end 12 of the mounting post 20.

Wherein, the position-limiting part 21 can be hollow, and the magnetic part is located in the position-limiting part 21. The support end 12 has a recess in which the magnetic portion is located. The stopper 21 may be in the form of a block, a plate, or the like, and is not particularly limited.

Further, the first magnetic parts 13 are uniformly arranged in plurality along the central axis of the mounting foot 10, the second magnetic parts 22 are uniformly arranged in plurality along the central axis of the mounting column 20, and the plurality of first magnetic parts 13 and the plurality of second magnetic parts 22 are arranged in one-to-one correspondence.

In actual operation, each first magnetic portion 13 and/or each second magnetic portion 22 are simultaneously powered on or powered off, so that each first magnetic portion 13 and the corresponding second magnetic portion 22 respectively generate a repulsive force to enable the support end 12 to leave the limiting portion 21. At this time, the respective repulsive forces are uniformly distributed so that the intervals between the support ends 12 and the stopper portions 21 are equal everywhere. In this way, the suspension height of the motor 30 is uniform, which helps to improve the stability of the magnetic suspension connection between the motor 30 and the bearing body 40 and maintain the position stability of the motor 30.

It should be noted that "a plurality" includes "two" in the embodiments of the present application.

Wherein, the plurality of first magnetic parts 13 can be arranged in a circumferential array or a matrix array around the central axis of the mounting foot 10, and the gravity center of the plurality of first magnetic parts 13 is located at the central axis of the mounting foot 10. The plurality of second magnetic parts 22 may be arranged in a circumferential array or a matrix array around the central axis of the mounting post 20, with the center of gravity of the plurality of second magnetic parts 22 located at the central axis of the mounting post 20.

It is understood that, since the mounting foot 10 is movably connected to the mounting post 20, that is, since there may be a position deviation when the motor 30 vibrates, the central axis of the mounting foot 10 and the central axis of the mounting post 20 may be parallel, coincident, or intersecting when the motor 30 is operated.

In the embodiment, referring to fig. 2 and 4, the number of the mounting feet 10 and the mounting posts 20 is multiple, and the plurality of mounting feet 10 and the plurality of mounting posts 20 are mounted in a one-to-one correspondence manner. The plurality of mounting feet 10 are configured to be evenly arranged about a central axis of the motor 30 and the plurality of mounting posts 20 are configured to be evenly arranged about the central axis of the motor 30.

At this time, the motor 30 and the load bearing body 40 are connected by the plurality of mounting legs 10 and the plurality of mounting posts 20, so that the connection of the motor 30 and the load bearing body 40 is more stable. Meanwhile, when the sum of the repulsive forces generated by the cooperation of the first electromagnets of the mounting feet 10 and the mounting posts 20 and the first permanent magnets is greater than or equal to the gravity of the motor 30, the motor 30 can be magnetically suspended and connected to the bearing body 40, and at this time, the magnetic suspension connection is realized by utilizing the repulsive forces generated by the energization of the plurality of first electromagnets, compared with the stress concentration of the motor 30 when the magnetic suspension connection is realized by utilizing the repulsive forces generated by the energization of one first electromagnet, the stress of the motor 30 in the magnetic suspension state is dispersed and uniform, so that the motor 30 is supported in the magnetic suspension state more stably and more energy-saving.

The plurality of mounting feet 10 may be arranged in a circumferential array or a matrix array around the first axis, and the center of gravity of the plurality of mounting feet 10 is located at the central axis of the motor 30, so as to ensure the positional stability of the motor 30. The plurality of mounting posts 20 may be arranged in a circumferential array or a matrix array around the central axis of the mounting posts 20, and the center of gravity of the plurality of mounting posts 20 is located at the central axis of the motor 30 to ensure the positional stability of the motor 30.

In other embodiments, it is not excluded that the mounting assembly comprises only one mounting foot 10 and one mounting post 20, thereby achieving the connection between the motor 30 and the load-bearing body 40.

Optionally, the mounting assembly further comprises a first mounting plate, the plurality of mounting posts 20 are mounted on the first mounting plate, and the plurality of mounting posts 20 are fixedly arranged on the load bearing body 40 through the first mounting plate. Thus, the disassembly and assembly can be accelerated. The signal emitting portion 52 or the signal receiving portion 51, which is configured to be fixedly disposed with respect to the mounting post 20 as mentioned in the subsequent embodiments, may be directly disposed on the first mounting plate.

Optionally, the mounting assembly further comprises a second mounting plate, the plurality of mounting feet 10 are mounted on the second mounting plate, and the plurality of mounting feet 10 are fixedly arranged on the motor 30 through the second mounting column 20. Thus, the disassembly and assembly can be accelerated. The signal emitting portion 52 or the signal receiving portion 51, which is configured to be fixedly disposed with respect to the mounting post 20 as mentioned in the subsequent embodiments, may be directly disposed on the second mounting plate.

In some embodiments, the motor 30 is configured such that its own central axis is arranged along a preset axis. The motor assembly further includes a second acting member disposed on one of the motor 30 or the load bearing body 40 and controlled to generate a second acting force for driving the motor 30 to move in any plane perpendicular to the predetermined axis such that the central axis of the motor 30 is located on the predetermined axis.

In practical operation, when the motor 30 is running, the gravity center of the motor 30 may be deflected by the wind field, and at this time, the motor 30 is moved in any plane perpendicular to the preset axis by the acting force generated by the second acting member, so as to correct the position of the gravity center of the motor 30. Therefore, the running stability of the motor 30 can be improved, and the phenomenon that when the center of gravity of the motor 30 deviates and interferes with the bearing body 40 or other structures, the vibration of the motor 30 is transmitted to the bearing body 40 or other structures and resonates to generate noise can be avoided.

Wherein the second force is used to provide one of the motor 30 and the load bearing body 40 with a movement signal and/or a moving medium that enables the motor 30 to move in any plane perpendicular to the predetermined axis. The movement signal may be an electromagnetic signal, a permanent magnetic signal or a high frequency acoustic signal. The suspension medium may be suspended particles or air (refer to gas suspension technology and particle beam suspension technology).

In particular, in the embodiment, referring to fig. 3, the second acting element includes a third magnetic part 14 and a fourth magnetic part 23, the third magnetic part 14 is disposed on the motor 30, the fourth magnetic part 23 is disposed on the load bearing body 40, at least one of the third magnetic part 14 and the fourth magnetic part 23 includes an electromagnet, and the other includes an electromagnet or a permanent magnet. When the third magnetic part 14 and/or the fourth magnetic part 23 are energized, a second repulsive force that causes the motor 30 to move in any plane perpendicular to the preset axis can be generated.

It is understood that the third magnetic part 14 and the fourth magnetic part 23 may be both electromagnets at the same time, and when both are energized, both ends of each electromagnet can form magnetic poles, and the generation of the second repulsive force is realized by arranging the same magnetic poles of the third magnetic part 14 and the fourth magnetic part 23 oppositely. Alternatively, one of the third magnetic part 14 and the fourth magnetic part 23 is an electromagnet, and the other is a permanent magnet, and when the electromagnet is energized, magnetic poles are formed at two ends of the electromagnet, and the electromagnet and the permanent magnet are arranged oppositely, a second repulsive force can be generated.

At this time, the two magnetic portions generate the second repulsive force, so that the motor 30 can move in the plane perpendicular to the predetermined axis, which facilitates to simplify the structure of the motor assembly and reduce the cost compared to other pair of levitation technologies (e.g., air levitation technology). At least one electromagnet of the two magnetic parts can control the size of the repulsive force generated by the two magnetic parts by the size of the current connected into the electromagnet, so that the moving distance of the motor 30 can be conveniently controlled.

In a specific embodiment, referring to fig. 3, the third magnetic part 14 is disposed on the wall of the mounting hole 11 of the mounting leg 10, and the fourth magnetic part 23 is disposed in the shaft of the mounting post 20 and is disposed corresponding to the third magnetic part 14.

In actual operation, when the first magnetic part 13 and/or the second magnetic part 22 are energized, the support end 12 of the mounting leg 10 is separated from the stopper 21, and at this time, the axial peripheral wall of the rod portion of the mounting post 20 may contact the hole wall of the mounting hole 11, and vibration generated when the motor 30 is operated may be transmitted to the load bearing body 40 through the hole wall of the mounting hole 11 and the mounting post 20, thereby generating noise. At this time, when the third magnetic part 14 and/or the fourth magnetic part 23 is energized, the second repulsive force is generated until the hole wall of the mounting hole 11 is separated from the axial circumferential wall of the rod part of the mounting post 20, thereby completely cutting off the vibration transmission path between the motor 30 and the load bearing body 40 and avoiding the noise generated by the resonance of the motor 30 and the load bearing body 40. The magnitude of the second repulsive force can be controlled by controlling the magnitude of the current when the third magnetic part 14 and/or the fourth magnetic part 23 are electrified, so that the gravity center of the motor 30 is ensured not to deviate.

In an embodiment, referring to fig. 3 and 5, the number of the third magnetic portions 14 and the number of the fourth magnetic portions 23 are multiple, the multiple third magnetic portions 14 are uniformly distributed on the hole wall of the mounting hole 11 around the central axis of the mounting foot 10, the multiple fourth magnetic portions 23 are uniformly distributed in the rod portion around the central axis of the mounting post 20, and the multiple third magnetic portions 14 correspond to the multiple fourth magnetic portions 23 one to one.

In actual operation, the third magnetic parts 14 and the fourth magnetic parts 23 are simultaneously powered on or powered off, so that when each group of the third magnetic parts 14 and the fourth magnetic parts 23 generate repulsive forces from each direction to separate the axial peripheral wall of the rod part of the mounting post 20 from the hole wall of the mounting hole 11, each repulsive force is uniformly distributed, and the interval between the axial peripheral wall of the rod part of the mounting post 20 and the hole wall of the mounting hole 11 is equal everywhere. In this manner, the position stability of the motor 30 is maintained, and the position deflection of the motor 30 is avoided.

It will be appreciated that the electromagnets each comprise a core and windings wound around the core and connected to an external circuit (for example when the windings are located on the mounting posts 20 the external circuit is the circuit of the patio machine assembly, when the assembly of the patio machine is in operation the electromagnets are each energised and the vibration transmission path of the assembly and the motor 30 is interrupted; when the windings are located on the mounting feet 10 the external circuit is the circuit of the motor 30, when the motor 30 is in operation the electromagnets are each energised and the vibration transmission path of the assembly and the motor 30 is interrupted) and current is passed through them to generate a magnetic field. The winding is connected with an external circuit through a charging and discharging circuit, so that damage caused by instant falling of the motor 30 due to the fact that the winding is powered off when the unit or the motor 30 is powered off instantly is avoided. The specific form of the charge/discharge circuit is not limited herein.

In some embodiments, the mounting assembly further comprises a controller electrically connected to the position sensor 50, and a position sensor 50 for detecting a levitation distance between the motor 30 and the load bearing body 40, the controller for controlling the magnitude of the first force generated by the first acting element according to the levitation distance. Therefore, the motor 30 can be dynamically suspended at the balance position through the controller, and the phenomenon that the motor 30 is aggravated by vibration and even damaged due to too large or too small instant acting force is avoided.

The position sensor 50 may be a photoelectric sensor, such as a laser sensor, an infrared sensor, or an ultrasonic sensor. In this way, the signal receiving unit 51 and the signal transmitting unit 52 are not directly connected to each other, and the vibration of the motor 30 is prevented from being transmitted to the load bearing body 40.

In particular, in the embodiment, referring to fig. 1 and 4, the position sensor 50 includes a signal emitting portion 52 and a signal receiving portion 51, which are adapted, one of the signal receiving portion 51 and the signal emitting portion 52 is configured to be fixedly disposed relative to the mounting foot 10, and the other one of the signal receiving portion 51 and the signal emitting portion 52 is configured to be fixedly disposed relative to the mounting post 20. The controller is electrically connected with the signal receiving part 51 and the signal transmitting part 52, and is configured to obtain a vector distance between the signal receiving part 51 and the signal transmitting part 52, and control the magnitude of the current connected to the first magnetic part 13 and/or the second magnetic part 22 according to a first distance of the vector distance in the axial direction of the motor 30 until the first distance is equal to a first preset distance.

In actual operation, the distance between the signal transmitting portion 52 and the signal receiving portion 51 changes following the change in the position of the motor 30. At this time, by acquiring the vector distance between the signal transmitting part 52 and the signal receiving part 51 of the position sensor 50 in real time, it is determined whether the motor 30 has an improper levitation position in the first direction according to a first distance of the vector distance in the axial direction of the motor 30 and a first preset distance. When the floating position is not proper, the current connected to the first magnetic part 13 and/or the second magnetic part 22 is controlled to change the magnitude of the first repulsive force, and then the floating position of the motor 30 is changed until the floating position of the motor 30 is at the preset horizontal position.

Further, the signal receiving section 51 and the signal transmitting section 52 are each disposed on the central axis of the motor 30. At this time, when each electromagnet is not energized, the distance direction between the signal receiving section 51 and the signal transmitting section 52 is parallel to the levitation direction of the motor 30. Therefore, the calculation process of obtaining the first distance and the second distance according to the vector distance is facilitated to be simplified, the requirement on the computing capacity of the controller is lowered, and the cost of the controller is further lowered.

Further, a signal receiving part 51 or a signal transmitting part 52 configured to be fixedly disposed with respect to the mounting post 20 is mounted to the weight body 40, and a signal receiving part 51 or a signal transmitting part 52 configured to be fixedly disposed with respect to the mounting foot 10 is mounted to the motor 30.

At this time, the first distance measured by the signal receiving part 51 and the signal transmitting part 52 is a real-time distance between the motor 30 and the load bearing body 40. When in the equilibrium state, the distance between the motor 30 and the load bearing body 40 is a first preset distance. When the first distance is greater than the first preset distance, which indicates that the motor 30 is lower than the equilibrium position, it is necessary to control the current connected to the first magnetic part 13 and/or the second magnetic part 22 to increase the first repulsive force, so that the motor 30 is raised to the equilibrium position. When the first distance is smaller than the first preset distance, which indicates that the motor 30 is higher than the equilibrium position, it is necessary to control the current connected to the first magnetic part 13 and/or the second magnetic part 22 to decrease, so as to reduce the first repulsive force, and thus the motor 30 falls back to the equilibrium position.

In other embodiments, the signal receiving portion 51 or the signal transmitting portion 52 configured to be fixedly disposed relative to the mounting post 20 may also be mounted on the side of the limiting portion 21 opposite to the supporting end 12 of the mounting foot 10, and the signal receiving portion 51 or the signal transmitting portion 52 configured to be fixedly disposed relative to the mounting foot 10 is mounted on the supporting end 12 of the mounting foot 10. At this time, the signal receiving part 51 and the signal transmitting part 52 directly measure the levitation distance of the motor 30.

The controller may be an industrial personal computer, a central processing unit, a microprocessor, an embedded single chip microcomputer, or other devices having a processing function, and is not particularly limited herein. The specific control manner of the controller is specific according to the installation position of the position sensor 50, and is not limited herein.

In some embodiments, the position sensor is further configured to detect an eccentric distance between the axis of the motor 30 and a predetermined axis, and to cause the central axis of the motor 30 to be located on the predetermined axis according to the magnitude of the second force generated by the second acting element from the eccentric distance.

In actual operation, when the motor 30 is the motor 30, the motor 30 operation in-process can make the focus of the motor 30 skew because of the reason of fan blade wind field, measures the eccentric distance of the motor 30 through the position sensor 50 this moment, and the controller moves in any plane perpendicular to the axis of predetermineeing according to eccentric distance control motor 30 for the focus of the motor 30 is located on predetermineeing the axis all the time. Therefore, the running stability of the motor 30 can be improved, the gravity deflection caused by the wind field of the fan blade during the running of the motor 30 can be adjusted in real time, the motor 30 is always in a dynamic balance state, and the phenomenon that when the gravity deflection of the motor 30 interferes with the bearing body 40 or other structures, the vibration of the motor 30 is transmitted to the bearing body 40 or other structures and then resonates to generate noise can be avoided.

In the embodiment, the controller is further configured to control the magnitude of the current coupled to the third magnetic part 14 and/or the fourth magnetic part according to a second distance between the vector distance between the signal receiving part 51 and the signal transmitting part 52 in a first plane perpendicular to the axial direction of the motor 30, until the second distance is equal to a second preset distance.

In actual operation, the distance between the signal transmitting part 52 and the signal receiving part 51 of the position sensor 50 changes following the change in the position of the motor 30 due to the eccentricity of the motor 30. At this time, the second distance of the vector distance on the first plane is the eccentric distance of the motor 30. However, when the eccentricity exists, the controller can control the current passing through each magnetic part accurately so as to change the position of the center of gravity of the motor 30. In this way, the same set of position sensors 50 can be used to control the magnetic parts, which contributes to simplification of the structure and cost reduction.

It is understood that the second distance and the second predetermined distance are both a plane vector distance, and may be decomposed into a distance score in the second direction and a distance score in the third direction on the first plane, and whether the center of gravity of the motor 30 is shifted in the second direction is determined by comparing the distance score in the second direction of the second distance with the distance score in the second direction of the second predetermined distance, and whether the center of gravity of the motor 30 is shifted in the third direction is determined by comparing the distance score in the third direction of the second distance with the distance score in the third direction of the second predetermined distance.

The second preset distance may be (0,0) indicating that the eccentricity amount is zero in a normal state, and the second distance may be (y1, y2) indicating that the eccentricity distance of the center of gravity of the motor 30 in the second direction is y1 and the eccentricity distance in the third direction is y 2.

The specific control process of the controller is specifically determined according to the number and arrangement angle of the third magnetic part 14 and the fourth magnetic part 23, and is not limited herein. Alternatively, the number of the third magnetic parts 14 and the fourth magnetic parts 23 is six.

In some embodiments, the control method of the controller includes the following steps:

the vector distance measured by the position sensor 50 is acquired.

And judging the relation between the first distance of the vector distance in the axial direction of the motor 30 and the first preset distance.

When the first distance is equal to the first preset distance, controlling to input a first preset current to the first magnetic part 13 and/or the second magnetic part 22.

When the first distance is not equal to the first preset distance, a first control current is calculated according to the difference between the first distance and the first preset distance, and the first current is controlled to be input to the first magnetic part 13 and/or the second magnetic part 22, wherein the first current is equal to the sum of the first preset current and the first control current.

At this time, when the first distance is not equal to the first preset distance, the first control current is calculated according to a difference between the first distance and the first preset distance, and the first control current is used to adjust the first pre-current to obtain the first current, so that the motor 30 returns to the equilibrium position under the action of the repulsive force generated when the first current is introduced into the first magnetic part 13 and/or the second magnetic part 22. Wherein the first control current is a vector current.

Further, the control method of the controller, after the step of acquiring the vector distance measured by the position sensor 50, further includes:

and judging the relation between a second distance of the vector distance in a first plane perpendicular to the axial direction of the motor 30 and a second preset distance.

When the second distance is equal to the second preset distance, controlling to input a second preset current to the third magnetic part 14 and/or the fourth magnetic part 23.

When the second distance is not equal to the second preset distance, a second control current is calculated according to the difference between the second distance and the second preset distance, and the second current is controlled to be input to the third magnetic part 14 and/or the fourth magnetic part 23, wherein the second current is equal to the sum of the second preset current and the second control current.

At this time, when the second distance is not equal to the second preset distance, the second control current is calculated according to a difference between the first distance and the second preset distance, and the second control current is used to adjust the second pre-current to obtain the second current, so that the center of gravity of the motor 30 returns to the initial position under the action of the repulsive force generated when the second current is introduced into the third magnetic portion 14 and/or the fourth magnetic portion 23. Wherein the second control current is a vector current. The second distance and the second preset distance are both vector distances.

The motor element that this application embodiment provided can be connected through being connected motor 30 and bearing body 40 suspension, and the vibration that produces when motor 30 is in the operation can't transmit to bearing body 40, avoids providing user's travelling comfort greatly because of the noise that motor 30 and bearing body 40 resonance arouse.

In addition, an embodiment of the present application further provides an electrical apparatus, which includes the bearing body 40 and the above-mentioned motor assembly. Since the electrical equipment comprises the mounting assembly, all the advantages of the specific mounting assembly are not described herein.

Wherein, the electrical equipment can be a ceiling fan, a ceiling fan and the like. When electrical equipment is the courtyard machine, still include the unit, the unit can regard as bearing body 40, and when motor 30 and unit simultaneous operation, can avoid the noise because of motor 30 and unit resonance arouse this moment, provides user's travelling comfort greatly.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A motor assembly comprising a motor (30) and a mounting assembly for mounting said motor (30) on a load bearing body (40), said mounting assembly comprising a first acting member arranged at one of said motor (30) or said load bearing body (40) and controlled to generate a first force driving said motor (30) into levitated connection with said load bearing body (40).

2. The motor assembly according to claim 1, characterized in that the first acting element is adapted to provide one of the motor (30) and the bearing body (40) with a levitation signal and/or a levitation medium enabling the motor (30) to be levitated connected to the bearing body (40).

3. An electric machine assembly according to claim 2, characterized in that the first acting element comprises a first magnetic part (13) and a second magnetic part (22), the first magnetic part (13) being arranged to the electric machine (30), the second magnetic part (22) being arranged to the load bearing body (40), at least one of the first magnetic part (13) and the second magnetic part (22) comprising an electromagnet;

when the first magnetic part (13) and/or the second magnetic part (22) are electrified, a first repulsive force enabling the motor (30) to be connected to the bearing body (40) in a suspending mode can be generated between the first magnetic part (13) and the second magnetic part (22).

4. The motor assembly according to claim 3, characterized in that it further comprises a mounting foot (10), said mounting foot (10) being solidly connected to said motor (30) and being movably connected to said load-bearing body (40), said first magnetic part (13) being arranged on said mounting foot (10);

when the first magnetic part (13) and/or the second magnetic part (22) are electrified, the first repulsive force which enables the mounting foot (10) to be connected to the bearing body (40) in a floating mode can be generated.

5. The electric machine assembly according to claim 4, characterized in that the mounting assembly further comprises a mounting post (20) for movably connecting the mounting foot (10), the mounting post (20) being arranged to the bearing body (40), the second magnetic part (22) being arranged to the mounting post (20);

when the first magnetic part (13) and/or the second magnetic part (22) are electrified, the first repulsive force which enables the mounting foot (10) to be connected to the mounting column (20) in a suspending mode can be generated.

6. The motor assembly according to claim 5, wherein one of the mounting foot (10) and the mounting post (20) has a mounting hole (11) penetrating along its axial direction and a supporting end (12) penetrated by the mounting hole (11), and the other has a rod part movably penetrating through the mounting hole (11), the rod part has a first end and a second end oppositely arranged along its axial direction, the second end is provided with a limiting part (21), and the mounting hole (11) is located between the limiting part (21) and the first end;

when the first magnetic part (13) and/or the second magnetic part (22) are/is energized, the first repulsive force that separates the support end (12) from the stopper part (21) can be generated.

7. The electric machine assembly according to any of claims 1 to 6, characterized in that the electric machine (30) is configured with its own central axis arranged along a preset axis;

the motor assembly further comprises a second acting element arranged on one of the motor (30) or the load-bearing body (40) and controlled to generate a second acting force driving the motor (30) to move in any plane perpendicular to the preset axis, so that the central axis of the motor (30) is located on the preset axis.

8. An electric machine assembly according to claim 7, characterized in that the second acting element comprises a third magnetic part (14) and a fourth magnetic part (23), the third magnetic part (14) being arranged to the electric machine (30), the fourth magnetic part (23) being arranged to the load bearing body (40), at least one of the third magnetic part (14) and the fourth magnetic part (23) comprising an electromagnet, the other comprising an electromagnet or a permanent magnet;

when the third magnetic part (14) and/or the fourth magnetic part (23) are electrified, a second repulsive force which enables the motor (30) to move in any plane perpendicular to the preset axis can be generated.

9. The motor assembly of claim 7, further comprising a controller and a position sensor (50), the controller being electrically connected to the position sensor (50), the position sensor (50) being configured to detect a levitation distance between the motor (30) and the bearing body (40), the controller being configured to control the magnitude of the first force generated by the first acting element based on the levitation distance.

10. The motor assembly of claim 9, wherein the position sensor is further configured to detect an eccentricity between an axis of the motor (30) and the predetermined axis, and to cause the central axis of the motor (30) to be located on the predetermined axis based on the magnitude of the second force generated by the second acting element in response to the eccentricity.

11. Electrical apparatus, characterized in that it comprises a bearing body (40) and an electrical machine assembly according to any one of claims 1 to 10.