CN215777781U - Brushless motor and have its robot of sweeping floor - Google Patents
Brushless motor and have its robot of sweeping floor Download PDFInfo
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- CN215777781U CN215777781U CN202023242228.1U CN202023242228U CN215777781U CN 215777781 U CN215777781 U CN 215777781U CN 202023242228 U CN202023242228 U CN 202023242228U CN 215777781 U CN215777781 U CN 215777781U
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- cavity
- bearing
- shell
- brushless motor
- vibration reduction
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Abstract
The utility model discloses a brushless motor and a sweeping robot with the same. The brushless motor comprises a shell, a rotor assembly and a vibration reduction structure, wherein a cavity is formed in the shell; the rotor assembly is rotatably arranged in the cavity and is connected with the shell; the vibration reduction structure is arranged on the shell and is arranged corresponding to the joint of the shell and the rotor assembly to buffer vibration formed by rotation of the rotor assembly. According to the technical scheme provided by the utility model, the vibration reduction structure is arranged on the shell, so that the vibration of the shell can be reduced, the noise is reduced, and the contact with other parts can be effectively reduced when the brushless motor is installed in other equipment, so that the noise of the brushless motor is less during working, and the user experience is better.
Description
Technical Field
The utility model relates to the technical field of floor cleaning devices, in particular to a brushless motor and a sweeping robot with the same.
Background
Most of motors on the market at present can touch other parts to generate resonance when the motor is installed in other machines because the vibration of the motor in the operation process can be conducted to the shell, and the sound generated by the motor in the operation process forms echo in the cavity because of a cavity structure in the shell of the motor, so that the noise of the motor and the whole machine is great when the motor and the whole machine are operated, and the use experience of a user is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model mainly aims to provide a brushless motor and a sweeping robot with the brushless motor, and aims to solve the problems that a traditional motor is high in noise during working and poor in user experience.
In order to achieve the above object, the present invention provides a brushless motor including:
the device comprises a shell, a first fixing piece and a second fixing piece, wherein a cavity is formed in the shell;
the rotor assembly is rotatably arranged in the cavity and is connected with the shell; and
and the vibration reduction structure is arranged on the shell and is correspondingly arranged at the joint of the shell and the rotor assembly so as to buffer the vibration formed by the rotation of the rotor assembly.
In one embodiment, the rotor assembly includes a bearing fixed to one end of the cavity;
the vibration reduction structure comprises a vibration reduction ring which is sleeved outside the shell and is arranged corresponding to the bearing.
In an embodiment, the housing is sequentially provided with a first shell section and a second shell section along an axial direction of the bearing, a cross-sectional area of the first shell section is smaller than that of the second shell section, the bearing is sleeved on an inner side of the first shell section, and the vibration reduction ring is sleeved on an outer side of the first shell section and abuts against a transition position of the first shell section and the second shell section.
In one embodiment, the damping ring is made of rubber.
In one embodiment, the rotor assembly includes a bearing fixed at one end of the cavity, a cavity is formed in an inner side wall of the housing, and the cavity and the bearing are arranged correspondingly;
the vibration reduction structure comprises a vibration reduction block, and the vibration reduction block is accommodated in the cavity.
In one embodiment, an annular protrusion is formed on the inner side wall of the shell, and the bearing is clamped on the inner side of the annular protrusion;
the cavity is arranged at one end of the annular bulge and is provided with an opening which is arranged along the axial direction of the bearing and faces the shell; the vibration reduction block is accommodated in the cavity, and the end part of the vibration reduction block is flush with the opening.
In one embodiment, the cavity is provided with a plurality of cavities, and the plurality of cavities are distributed along the circumferential direction of the bearing;
the damping piece is provided with a plurality ofly, and a plurality ofly the damping piece is with a plurality of the cavity is the one-to-one setting.
In one embodiment, the width of each damper block is gradually increased from the center of the bearing in a radial direction toward the edge of the bearing.
In one embodiment, the material of the damping block is rubber.
The utility model also provides a sweeping robot, which comprises a brushless motor, wherein the brushless motor comprises:
the device comprises a shell, a first fixing piece and a second fixing piece, wherein a cavity is formed in the shell;
the rotor assembly is rotatably arranged in the cavity and is connected with the shell; and
and the vibration reduction structure is arranged on the shell and is correspondingly arranged at the joint of the shell and the rotor assembly so as to buffer the vibration formed by the rotation of the rotor assembly.
According to the technical scheme provided by the utility model, the rotor assembly in the brushless motor can rotate in the shell, and the rotor assembly is connected with the shell, so that the vibration generated when the rotor assembly rotates can be transmitted to the shell, and the vibration reduction structure is arranged on the shell, so that the vibration of the shell can be reduced, the noise can be reduced, and when the brushless motor is arranged in other equipment, the contact with other parts can be effectively reduced, the noise of the brushless motor during working is reduced, and the user experience is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a brushless motor according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of the brushless motor shown in fig. 1 along an axial direction;
fig. 3 is a schematic cross-sectional view of the brushless motor shown in fig. 1 in a radial direction.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
2 | |
| 1 | |
21 | Bearing assembly |
| 11 | A |
3 | |
| 12 | |
3a | |
| 13 | |
3b | |
| 14 | Hollow cavity |
The object of the present invention, its functional characteristics and advantageous effects will be further described with reference to the following embodiments and drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a brushless motor and a sweeping robot with the same, and fig. 1 to 3 show an embodiment of the brushless motor provided by the utility model.
In this embodiment, the sweeping robot includes the brushless motor 100, and the brushless motor 100 is mainly used to drive the sweeping robot to walk or to drive cleaning members such as a rolling brush and a cleaning cloth in the sweeping robot to move. The present invention is mainly an improvement of the brushless motor 100, and the following description mainly describes a technical solution of the brushless motor 100.
Referring to fig. 1 to 2, in the present embodiment, a brushless motor 100 includes a housing 1, a rotor assembly 2, and a vibration reduction structure 3; a cavity is formed in the housing 1, and the cavity is used for accommodating the rotor assembly 2, the stator assembly and other auxiliary positioning structures in the brushless motor 100; the rotor component 2 is rotatably arranged in the cavity and connected with the shell 1 so as to be fixedly arranged on the shell 1; damping structure 3 locates on casing 1, and correspond the setting with casing 1 and rotor subassembly 2 junction for buffer rotor subassembly 2 rotates the vibration that forms, and when rotor subassembly 2 rotated, can drive casing 1 and vibrate together, when this brushless motor 100 was installed in the robot of sweeping the floor, then can collide with other structures in order to produce the noise, can slow down the vibration range of casing 1 through damping structure 3, thereby reduce the noise.
In the technical scheme provided by the utility model, as the rotor assembly 2 in the brushless motor 100 rotates in the shell 1, and as the rotor assembly 2 is connected with the shell 1, the vibration generated by the rotor assembly 2 during rotation can be transmitted to the shell 1, and the vibration reduction structure 3 is arranged on the shell 1, the vibration of the shell 1 can be reduced, so that the noise is reduced, and the brushless motor 100 can be installed in other equipment, such as a sweeping robot, so that the touch with other parts can be effectively reduced, the noise of the brushless motor 100 during working is reduced, and the user experience is better.
In the brushless motor 100, the rotor assembly 2 is generally coupled to the housing 1 through the bearing 21, so that the rotor assembly 2 can rotate in the housing 1, and the fixation of the rotor assembly 2 is also facilitated. Specifically, the bearing 21 is fixed at one end of the cavity, and the other end of the cavity is used for accommodating the stator assembly.
The damping structure 3 can be arranged in various ways. In an embodiment, the damping structure 3 includes a damping ring 3a, the damping ring 3a is sleeved outside the housing 1 and is disposed corresponding to the bearing 21, and since the vibration amplitude of the housing 1 at the bearing 21 is the largest, the damping ring 3a is sleeved at the bearing 21 corresponding to the housing 1, so as to effectively buffer the vibration of the housing 1, thereby reducing the noise of the brushless motor 100.
The damping ring 3a may be made of rubber or other materials having a damping effect to enhance the damping effect.
Specifically, referring to fig. 2, the housing 1 is sequentially provided with a first housing segment 11 and a second housing segment 12 along an axial direction of the bearing 21, a cross-sectional area of the first housing segment 11 is smaller than a cross-sectional area of the second housing segment 12, the bearing 21 is sleeved on an inner side of the first housing segment 11, and the damping ring 3a is sleeved on an outer side of the first housing segment 11 and abuts against a transition position of the first housing segment 11 and the second housing segment 12. The end part of the first shell section 11 can be provided with a guide impeller, so that the damping ring 3a is limited between the guide impeller and the second shell section 12, and the sliding is not easy to occur, and the reliability is higher.
In another embodiment, referring to fig. 3, when a cavity 14 is formed on the inner side wall of the housing 1, and the cavity 14 is disposed corresponding to the bearing 21, the sound generated by the brushless motor 100 during operation forms an echo in the cavity 14, which causes the brushless motor 100 to be very noisy during operation; at this time, the vibration damping structure 3 may include a vibration damping block 3b, and the vibration damping block 3b is accommodated in the cavity 14 to fill the cavity 14 in the housing 1, so as to prevent sound from forming resonance in the cavity 14, thereby achieving a noise reduction effect.
The material of the damper block 3b may be a material having a cushioning effect such as rubber to enhance the cushioning effect.
Specifically, as shown in fig. 2 and fig. 3, an annular protrusion 13 is formed on an inner side wall of the housing 1, and the bearing 21 is clamped inside the annular protrusion 13, i.e., can be clamped in an inner ring of the annular protrusion 13 by interference fit; the cavity 14 is arranged at one end of the annular protrusion 13, and the cavity 14 has an opening which is opened along the axial direction of the bearing 21 and towards the inner side of the shell 1, that is, the opening of the cavity 14 is arranged opposite to the end part of the first shell section 11; the damping block 3b is accommodated in the cavity 14, and the end of the damping block 3b is flush with the opening, so that the filling effect is better.
Further, the cavities 14 are provided in plurality, and the plurality of cavities 14 are arranged along the circumferential direction of the bearing 21; the damping block 3b is provided with a plurality of, and a plurality of damping blocks 3b are the one-to-one setting with a plurality of cavities 14 to correspond and all fill each cavity 14.
The width of each damper block 3b is gradually increased from the center of the bearing 21 in a radial direction toward the edge of the bearing 21 to match the shape of the cavity 14 to prevent the generation of a filling gap.
Obviously, the two embodiments can also be implemented in combination, when the cavity 14 is provided inside the housing 1, the cavity 14 of the housing 1 can be filled with the vibration damping block 3b, and the vibration damping ring 3a is sleeved outside the corresponding housing 1, so that when the brushless motor 100 operates, both internal noise and external noise are significantly improved.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A brushless electric machine (100), comprising:
the device comprises a shell (1), wherein a cavity is formed in the shell (1);
the rotor assembly (2) is rotatably arranged in the cavity and is connected with the shell (1); and
the vibration reduction structure (3) is arranged on the shell (1) and corresponds to the joint of the shell (1) and the rotor assembly (2) to buffer vibration formed by rotation of the rotor assembly (2).
2. The brushless electric machine (100) of claim 1, wherein the rotor assembly (2) comprises a bearing (21), the bearing (21) being fixed to one end of the cavity;
the damping structure (3) comprises a damping ring (3a), and the damping ring (3a) is sleeved outside the shell (1) and is arranged corresponding to the bearing (21).
3. The brushless motor (100) according to claim 2, wherein the housing (1) is provided with a first housing section (11) and a second housing section (12) in sequence along an axial direction of the bearing (21), a cross-sectional area of the first housing section (11) is smaller than a cross-sectional area of the second housing section (12), the bearing (21) is sleeved on an inner side of the first housing section (11), and the damping ring (3a) is sleeved on an outer side of the first housing section (11) and abuts against a transition point of the first housing section (11) and the second housing section (12).
4. The brushless electric machine (100) of claim 2, wherein the damping ring (3a) is made of rubber.
5. The brushless motor (100) according to claim 4, wherein the rotor assembly (2) comprises a bearing (21), the bearing (21) is fixed at one end of the cavity, a cavity (14) is formed on the inner side wall of the housing (1), and the cavity (14) is arranged corresponding to the bearing (21);
the vibration reduction structure (3) comprises a vibration reduction block (3b), and the vibration reduction block (3b) is accommodated in the cavity (14).
6. The brushless motor (100) according to claim 5, wherein an annular protrusion (13) is formed on an inner side wall of the housing (1), and the bearing (21) is clamped inside the annular protrusion (13);
the cavity (14) is arranged at one end of the annular bulge (13), and the cavity (14) is provided with an opening which is arranged along the axial direction of the bearing (21) and faces the inner side of the shell (1); the vibration reduction block (3b) is accommodated in the cavity (14), and the end part of the vibration reduction block (3b) is flush with the opening.
7. The brushless electric machine (100) according to claim 6, wherein the cavity (14) is provided in plurality, and a plurality of the cavities (14) are arranged in a circumferential direction of the bearing (21);
the vibration reduction blocks (3b) are arranged in a plurality, and the vibration reduction blocks (3b) and the cavities (14) are arranged in a one-to-one correspondence mode.
8. The brushless motor (100) of claim 7, wherein the width of each damper block (3b) is gradually increased from the center of the bearing (21) in a radial direction toward the edge of the bearing (21).
9. The brushless electric machine (100) of claim 5, wherein the damper block (3b) is made of rubber.
10. A sweeping robot, characterized in that it comprises a brushless electric machine (100) according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023242228.1U CN215777781U (en) | 2020-12-29 | 2020-12-29 | Brushless motor and have its robot of sweeping floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023242228.1U CN215777781U (en) | 2020-12-29 | 2020-12-29 | Brushless motor and have its robot of sweeping floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215777781U true CN215777781U (en) | 2022-02-11 |
Family
ID=80124552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023242228.1U Active CN215777781U (en) | 2020-12-29 | 2020-12-29 | Brushless motor and have its robot of sweeping floor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215777781U (en) |
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2020
- 2020-12-29 CN CN202023242228.1U patent/CN215777781U/en active Active
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