CN213937612U - Motor and cleaning device - Google Patents

Abstract

The embodiment of the application provides a motor and cleaning device, wherein, the motor includes: the shell is provided with an accommodating cavity, and a mounting seat is arranged in the accommodating cavity; the rotating shaft is inserted in the mounting seat, a first bearing is sleeved on the first end of the rotating shaft, and the rotating shaft is rotatably connected with the mounting seat through the first bearing; the impeller is connected with the end part of the first end of the rotating shaft, a first elastic piece sleeved on the rotating shaft is arranged between the impeller and the first bearing, and the first elastic piece provides pre-tightening force for the first bearing; the driving part comprises a rotor and a stator, the rotor is connected with the second end of the rotating shaft, and the stator is covered outside the rotor. The motor of this application embodiment is owing to set up first elastic component between impeller and first bearing, consequently first elastic component can provide the pretightning force for first bearing when the motor assembly, prevents that first bearing from taking place the displacement, improves the precision of assembly. Simultaneously first elastic component can also improve the stability of first bearing when the motor work, prevents that the drunkenness from appearing in first bearing.

Description

Motor and cleaning device

Technical Field

The application relates to the technical field of driving equipment, in particular to a motor and a cleaning device.

Background

The existing motor has more internal parts, more complex assembly process and inconvenient maintenance and disassembly. Moreover, because the internal structure is unreasonable in design, the internal parts of the motor are easy to move, the matching of the parts is not smooth, and the performance of the motor is reduced.

This section is intended to provide a background or context to the embodiments of the application that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a motor and a cleaning device, which are used for solving or relieving one or more technical problems in the prior art.

As an aspect of embodiments of the present application, embodiments of the present application provide an electric machine, including:

the shell is provided with an accommodating cavity, and a mounting seat is arranged in the accommodating cavity;

the rotating shaft is inserted in the mounting seat, a first bearing is sleeved on the first end of the rotating shaft, and the rotating shaft is rotatably connected with the mounting seat through the first bearing;

the impeller is connected with the end part of the first end of the rotating shaft, a first elastic piece sleeved on the rotating shaft is arranged between the impeller and the first bearing, and the first elastic piece provides pre-tightening force for the first bearing;

the driving part comprises a rotor and a stator, the rotor is connected with the second end of the rotating shaft, and the stator is covered outside the rotor.

In one embodiment, a second bearing is sleeved on the second end of the rotating shaft, and the rotating shaft is rotatably connected with the mounting seat through the first bearing and the second bearing.

In one embodiment, a second elastic piece is arranged between the rotor and the second bearing and sleeved on the rotating shaft, and the elastic piece provides pretightening force for the second bearing.

In one embodiment, the rotor comprises magnetic steel.

In one embodiment, a first bearing chamber is provided on the mount, the first bearing being disposed in the first bearing chamber; the outer side of the first bearing chamber is provided with a first guide groove which is communicated with the first bearing chamber, and the adhesive injected into the first guide groove flows to an annular space between the first bearing and the first bearing chamber so as to fix the outer ring of the first bearing and the first bearing chamber.

In one embodiment, one end of the first elastic member abuts against the inner ring of the first bearing, and the other end of the first elastic member abuts against the connection end of the impeller.

In one embodiment, a second bearing chamber is provided on the mount, the second bearing being disposed in the second bearing chamber; and a second diversion trench is arranged on the outer side of the second bearing chamber, the second diversion trench is communicated with the second bearing chamber, and the adhesive injected into the second diversion trench flows to an annular space between the second bearing and the second bearing chamber so as to fix the outer ring of the second bearing and the second bearing chamber.

In one embodiment, one end of the second elastic member abuts against the inner ring of the second bearing, and the other end of the second elastic member abuts against the rotor.

In one embodiment, a dust suction port is formed in the housing at a position corresponding to the impeller, and the dust suction port communicates with the dust collection chamber.

As another aspect of the embodiments of the present application, embodiments of the present application provide a cleaning device including the motor in any of the above embodiments.

The motor of this application embodiment is owing to set up first elastic component between impeller and first bearing, consequently first elastic component can provide the pretightning force for first bearing when the motor assembly, prevents that first bearing from taking place the displacement, improves the precision of assembly. Simultaneously first elastic component can also improve the stability of first bearing when the motor work, prevents that the drunkenness from appearing in first bearing.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

Fig. 1 illustrates a structural view of a motor according to an embodiment of the present application.

Description of reference numerals:

100-a motor; 1-a shell; 2-a rotating shaft;

3-an impeller; 4-a drive section; 11-a containment chamber;

12-a mounting seat; 51-a first bearing; 6-a first elastic member;

41-a rotor; 52-a second bearing; 71-a first bearing chamber;

72-a second bearing chamber; 13-dust absorption mouth.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

As an aspect of the embodiments of the present application, the embodiments of the present application provide a motor 100, as shown in fig. 1, which may include a housing 1, a rotating shaft 2, an impeller 3, and a driving part 4.

The housing 1 has a receiving cavity 11, and a mounting seat 12 is disposed in the receiving cavity 11.

The specific structures, materials, and the like of the housing 1, the accommodating cavity 11, and the mounting seat 12 may be selected and adjusted as needed, and are not particularly limited herein. For example, the shape of the housing 1 can be selectively adjusted according to the connection relationship and the position of the motor 100 with other devices. The shape and size of the receiving cavity 11 can be selectively adjusted according to the number and structure of the components inside the motor 100. The shape and structure of the mounting seat 12 can be selectively adjusted according to the number and structure of the parts to be connected. The mounting base 12 may be provided with a through hole or a slot for connecting other components with the mounting base 12. The mounting seat 12 may be formed integrally with the accommodating chamber 11, or may be separately provided in the accommodating chamber 11.

The installation base 12 is arranged in to pivot 2, and the cover is equipped with first bearing 51 on the first end of pivot 2, and pivot 2 rotates with installation base 12 through first bearing 51 to be connected.

The first bearing 51 may adopt any bearing structure in the prior art, and it is sufficient that the rotating shaft 2 can rotate relative to the mounting base 12 after being inserted into the mounting base 12. The number, size, etc. of the first bearings 51 may be selected and adjusted according to the length and diameter of the rotating shaft 2.

The rotating shaft 2 is rotatably connected with the mounting seat 12 through a first bearing 51, and it can be understood that an inner ring of the first bearing 51 is sleeved outside the rotating shaft 2, and an outer ring of the first bearing 51 is arranged in the mounting seat 12. When the inner ring of the first bearing 51 rotates relative to the outer ring, the rotation of the rotating shaft 2 relative to the mounting seat 12 can be realized.

The impeller 3 is connected with the end of the first end of the rotating shaft 2, a first elastic piece 6 sleeved on the rotating shaft 2 is arranged between the impeller 3 and the first bearing 51, and the first elastic piece 6 provides pretightening force for the first bearing 51.

The impeller 3 can rotate along with the rotating shaft 2, and the function of the impeller 3 is different according to different rotating directions. For example, the impeller 3 can discharge hot air inside the casing 1 when rotating, and functions to radiate heat to the motor 100. For another example, the impeller 3 may suck and discharge impurities or dust in the external environment into the dust collecting chamber when rotating, so that the motor 100 functions as a blower. The shape and structure of the impeller 3 can be selected and adjusted as required, and is not particularly limited herein.

The first elastic member 6 may have any elastic structure in the prior art, such as a spring. As long as the effect is achieved that a counter force is generated after compression. That is, the compression may be performed to restore the form of the body.

The driving part 4 includes a rotor 41 and a stator (not shown), the rotor 41 is connected to the second end of the rotating shaft 2, and the stator is covered outside the rotor 41. The stator can drive the rotor 41 to rotate the rotating shaft 2, so that the rotating shaft 2 drives the impeller 3 to rotate.

The stator and rotor 41 may adopt any stator and rotor structure of the existing motor 100, and is not particularly limited herein.

The motor 100 of this application embodiment is owing to set up first elastic component 6 between impeller 3 and first bearing 51, consequently first elastic component 6 can provide the pretightning force for first bearing 51 when motor 100 assembles, prevents that first bearing 51 from taking place the displacement, improves the precision of assembly. Meanwhile, the first elastic member 6 can improve the stability of the first bearing 51 when the motor 100 operates, and prevent the first bearing 51 from moving.

In one embodiment, a second bearing 52 is sleeved on the second end of the rotating shaft 2, and the rotating shaft 2 is rotatably connected with the mounting seat 12 through the first bearing 51 and the second bearing 52.

The second bearing 52 may adopt any bearing structure in the prior art, and it is sufficient that the rotating shaft 2 can rotate relative to the mounting base 12 after being inserted into the mounting base 12. The number, size, etc. of the second bearings 52 can be selected and adjusted according to the length and diameter of the rotating shaft 2.

In one embodiment, a second elastic member (not shown) is disposed between the rotor 41 and the second bearing 52 and sleeved on the rotating shaft 2, and the second elastic member provides a pre-load force for the second bearing 52.

The second elastic member may adopt any elastic structure in the prior art, such as a spring. As long as the effect is achieved that a counter force is generated after compression. That is, the compression may be performed to restore the form of the body.

In one embodiment, the rotor 41 comprises magnetic steel. The number of the magnetic steels and the arrangement mode on the rotor 41 are selected and adjusted according to the needs, and are not specifically limited herein.

In one embodiment, the mount 12 is provided with a first bearing chamber 71, and the first bearing 51 is disposed in the first bearing chamber 71. The first bearing chamber 71 is provided at an outer side thereof with a first guide groove (not shown) communicating with the first bearing chamber 71, and the adhesive injected into the first guide groove flows to an annular space between the first bearing 51 and the first bearing chamber 71 to fix the outer race of the first bearing 51 with the first bearing chamber 71.

The shape, structure and size of the first diversion trench can be selected and adjusted according to the needs. The depth of the first channels can be selected and adjusted as desired.

The first bearing chamber 71 is used for placing and stabilizing the first bearing 51, so that the first bearing 51 can keep a stable state during work without shaking or moving. The first guiding grooves can guide the adhesive to flow uniformly through the gap between the first bearing 51 and the first bearing chamber 71. Meanwhile, since the first guide groove is provided outside the first bearing chamber 71, it is possible to perform injection of the adhesive after the first bearing 51 is mounted. So that the first bearing 51 can be adjusted to an optimum position within the first bearing chamber 71, and then the outer surface of the first bearing 51 is fixed to the first bearing chamber 71 by an adhesive. Therefore, the problem that the first bearing 51 is fixed by the adhesive without being adjusted to the optimal position in the first bearing chamber 71, and the first bearing 51 is blocked to cause vibration and noise during the operation of the first bearing 51 is effectively avoided.

In one embodiment, one end of the first elastic member 6 abuts against the inner ring of the first bearing 51, and the other end of the first elastic member 6 abuts against the connection end of the impeller 3. Thereby ensuring that the inner ring of the first bearing 51 is pre-tensioned so that the first bearing 51 does not play.

In one example, the top outer edge of the inner cavity of the first bearing chamber 71 may be provided with a first flow guiding surface along the circumferential direction in an inclined manner. The first diversion trench is communicated with an annular space surrounded by the first diversion surface. The adhesive can be uniformly attached to the entire inner wall of the first bearing chamber 71 through the first guide surface.

In one example, the inclination angle of the first flow guiding surface and the area of the first flow guiding surface may be selected and adjusted as desired. The first flow guide surface may be inclined outwardly from the top outer edge of the first bearing chamber 71 to ensure that adhesive on the first flow guide surface flows downwardly into the first bearing chamber 71 under the force of gravity.

In one example, the adhesive may be any adhesive material in the prior art, such as glue, etc., as long as a stable connection of the first bearing 51 with the first bearing chamber 71 can be achieved.

In one example, the adhesive can be natural adhesive, such as biological adhesive of starch, protein, dextrin, animal glue, shellac, hide glue, rosin, etc.; mineral binders such as asphalt are also included. Synthetic adhesives such as inorganic adhesives like water glass and organic adhesives like synthetic resins, synthetic rubbers and the like can be used. Water soluble binders such as starch, dextrin, polyvinyl alcohol, carboxymethyl cellulose and the like may be used. Hot melt adhesives such as polyurethane, polystyrene, polyacrylate, ethylene vinyl acetate, and the like may be used. Emulsion type adhesives such as vinyl acetate resins, acrylic resins, chlorinated rubbers, and the like can be used. Solventless liquid adhesives such as epoxies and the like may be used.

In one example, the adhesive may be added while the shaft 2 rotates together with the first bearing 51, thereby ensuring that the first bearing 51 can be fixed by the adhesive after being adjusted to an optimal position in the first bearing chamber 71 by the shaft 2.

In one embodiment, the top outer edge of the first diversion trench is provided with a second diversion surface along the circumferential direction in an inclined manner, and the second diversion surface is connected with the first diversion surface.

The inclination angle of the second flow guiding surface and the area of the second flow guiding surface can be selected and adjusted according to requirements. The second guide surface may be inclined outward from the top outer edge of the first bearing chamber 71.

In this embodiment, the second guiding surface and the first guiding surface may be connected to form a complete annular space, so that the adhesive injected into the first guiding groove flows to the inner wall of the first bearing chamber 71 via the annular space and fills between the first bearing chamber 71 and the outer surface of the first bearing 51, so that the first bearing 51 can be fixed in the first bearing chamber 71. Meanwhile, the provision of the second flow guide surface can increase the volume of the annular space surrounded by the first flow guide surface, and to some extent, serves to prevent the adhesive from overflowing to the outside of the first bearing chamber 71 or into the inside of the first bearing 51.

In one embodiment, the number of the first guide grooves is two, and the two first guide grooves are oppositely arranged.

In one embodiment, the first guide grooves are provided in plurality, and each of the first guide grooves is circumferentially spaced along the top outer edge of the first bearing chamber 71. The specific number of the first guide grooves and the size of the interval between the first guide grooves may be selected and adjusted according to needs, and are not specifically limited herein.

In the present embodiment, by providing the plurality of first guide grooves, the injection efficiency of the adhesive can be increased, so that the adhesive can more rapidly flow into between the outer surface of the first bearing 51 and the first bearing chamber 71.

In one embodiment, a second bearing chamber 72 is provided on the mount 12, and the second bearing 52 is disposed in the second bearing chamber 72. A second guide groove (not shown) is formed at an outer side of the second bearing chamber 72, the second guide groove is communicated with the second bearing chamber 72, and the adhesive injected into the second guide groove flows to an annular space between the second bearing 52 and the second bearing chamber 72 to fix the outer race of the second bearing 52 with the second bearing chamber 72.

The shape, structure and size of the second guide grooves can be selected and adjusted according to needs. The depth of the second channels can be selected and adjusted as desired.

The second bearing chamber 72 is used to position and stabilize the second bearing 52 so that the second bearing 52 can maintain a stable state during operation without wobbling or play. The second guiding grooves can guide the adhesive to make the adhesive flow uniformly in the gap between the second bearing 52 and the second bearing chamber 72. Meanwhile, since the second guide grooves are provided outside the second bearing chamber 72, it is possible to perform injection of the adhesive after the installation of the second bearing 52 is completed. So that the outer surface of the second bearing 52 is fixed to the second bearing chamber 72 by an adhesive after the second bearing 52 is adjusted to an optimal position in the second bearing chamber 72. Therefore, the problem that the second bearing 52 is fixed by the adhesive without being adjusted to the optimal position in the second bearing chamber 72, so that the second bearing 52 is blocked to cause vibration and noise during the operation of the second bearing 52 is effectively avoided.

In one embodiment, one end of the second elastic member abuts against the inner race of the second bearing 52, and the other end of the second elastic member abuts against the rotor 41. Thereby ensuring that the inner race of second bearing 52 is pre-tensioned so that second bearing 52 does not rattle.

In one example, the top outer edge of the inner cavity of the first bearing chamber 71 may be provided with a first flow guiding surface along the circumferential direction in an inclined manner. The first diversion trench is communicated with an annular space surrounded by the first diversion surface. The adhesive can be uniformly attached to the entire inner wall of the first bearing chamber 71 through the first guide surface.

In one example, the inclination angle of the second flow guiding surface and the area of the second flow guiding surface may be selected and adjusted as desired. The second flow guide surface may be angled outwardly from the top periphery of the second bearing chamber 72 to ensure that adhesive on the second flow guide surface flows downwardly under the force of gravity into the second bearing chamber 72.

In one example, the adhesive may be added as the shaft 2 rotates with the second bearing 52, thereby ensuring that the second bearing 52 is secured by the adhesive after being adjusted to an optimal position within the second bearing chamber 72 by the shaft 2.

In one embodiment, the number of the second guide grooves is two, and the two second guide grooves are oppositely arranged.

In one embodiment, the second guide grooves are a plurality of second guide grooves, and each second guide groove is circumferentially spaced along the top outer edge of the second bearing chamber 72. The specific number of the second guide grooves and the size of the interval between the second guide grooves may be selected and adjusted according to needs, and are not specifically limited herein.

In the present embodiment, by providing a plurality of second channels, the injection efficiency of the adhesive can be increased, so that the adhesive can flow into the space between the outer surface of the second bearing 52 and the second bearing chamber 72 more rapidly.

In one embodiment, the housing 1 is provided with a dust suction port 13 at a position corresponding to the impeller 3, and the dust suction port 13 communicates with the dust collecting chamber. The size and shape of the suction port 13 can be selected and adjusted according to the size of the impeller 3.

The motor 100 in the above embodiments of the present application can be used as a cleaning device such as a sweeper, a vacuum cleaner, a mopping machine, etc. The motor 100 may be used as a dust suction fan in a cleaning device, or may be used as a motor for driving a transmission mechanism to rotate.

As an aspect of the embodiments of the present application, the embodiments of the present application provide a cleaning device including the motor 100 of any one of the embodiments.

The cleaning device can be cleaning equipment such as a sweeper, a dust collector, a mopping machine and the like. The motor 100 may be used as a dust suction fan in a cleaning apparatus. When the cleaning device needs to perform a cleaning action, the motor 100 is started, and impurities or dust in the external environment are sucked in through the dust suction port 13 and conveyed into the dust collection chamber under the rotation of the impeller 3.

In the description of the present specification, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the 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 one or more of that feature. In the description of the present application, "a plurality" means two or more 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; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. 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 comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present application, and these should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. An electric machine, comprising:

the shell is provided with an accommodating cavity, and a mounting seat is arranged in the accommodating cavity;

the rotating shaft is inserted in the mounting seat, a first bearing is sleeved at the first end of the rotating shaft, and the rotating shaft is rotatably connected with the mounting seat through the first bearing;

the impeller is connected with the end part of the first end of the rotating shaft, a first elastic piece sleeved on the rotating shaft is arranged between the impeller and the first bearing, and the first elastic piece provides pre-tightening force for the first bearing;

the driving part comprises a rotor and a stator, the rotor is connected with the second end of the rotating shaft, and the stator is covered outside the rotor.

2. The electric machine of claim 1, wherein a second bearing is sleeved on a second end of the shaft, and the shaft is rotatably connected to the mounting block through the first bearing and the second bearing.

3. The motor of claim 2, wherein a second elastic member is disposed between the rotor and the second bearing and disposed on the rotating shaft, and the second elastic member provides a pre-tightening force to the second bearing.

4. The electric machine of claim 1, wherein the rotor comprises magnetic steel.

5. The electric machine of claim 1, wherein the mount is provided with a first bearing chamber, the first bearing being disposed in the first bearing chamber; and a first guide groove is formed on the outer side of the first bearing chamber, the first guide groove is communicated with the first bearing chamber, and the adhesive injected into the first guide groove flows to an annular space between the first bearing and the first bearing chamber so as to fix the outer ring of the first bearing and the first bearing chamber.

6. The motor of claim 1, wherein one end of the first elastic member abuts against the inner ring of the first bearing, and the other end of the first elastic member abuts against the connecting end of the impeller.

7. The electric machine of claim 2, wherein a second bearing chamber is provided on the mount, the second bearing being disposed in the second bearing chamber; and a second diversion groove is formed in the outer side of the second bearing chamber, the second diversion groove is communicated with the second bearing chamber, and the adhesive injected into the second diversion groove flows to an annular space between the second bearing and the second bearing chamber so as to fix the outer ring of the second bearing and the second bearing chamber.

8. The electric machine of claim 3, wherein one end of the second resilient member abuts against the inner race of the second bearing and the other end of the second resilient member abuts against the rotor.

9. The motor of claim 1, wherein a dust suction port is provided at a position of the housing corresponding to the impeller, and the dust suction port communicates with a dust collecting chamber.

10. A cleaning device comprising a motor according to any one of claims 1 to 9.

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