Motor assembly, cleaning side brush and cleaning device

Abstract

The utility model discloses a motor assembly, a cleaning side brush and a cleaning device. The motor assembly comprises a side brush shell and a motor; a mounting sleeve is arranged on one side of the side brush shell; the motor comprises a stator and a rotor which can be separated, the stator sleeves the mounting sleeve and is in interference fit with the mounting sleeve, the rotor comprises a housing and a rotating shaft, the housing covers the stator, one end of the rotating shaft penetrates through the mounting sleeve and is connected to the housing, and the other end of the rotating shaft is used for being connected with the side brush. The technical scheme of the utility model provides the motor assembly which is convenient for motor assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a motor component, a cleaning side brush and a cleaning device. Background Art

[0002] Cleaning devices such as sweeping robots usually use a cleaning side brush to clean the floor, and the motor of the cleaning side brush usually uses screw fasteners to fix the stator on the side brush housing of the side brush, which is inconvenient to assemble the motor and the side brush. Utility Model Content

[0003] The main purpose of the utility model is to provide a motor component, aiming to provide a motor component that is convenient for motor assembly.

[0004] In order to achieve the above-mentioned object, the utility model provides a motor assembly, comprising:

[0005] A side brush housing, one side of which is provided with a mounting sleeve;

[0006] The motor comprises a separable stator and a rotor, wherein the stator is sleeved on the mounting sleeve and has an interference fit with the mounting sleeve, and the rotor comprises a cover shell and a rotating shaft, wherein the cover shell covers the stator, one end of the rotating shaft is passed through the mounting sleeve and connected to the cover shell, and the other end of the rotating shaft is used to be connected to a side brush.

[0007] In one embodiment of the utility model, the mounting sleeve includes a support section and an interference section connected along its axial direction, the support section is connected to the side brush housing, and the outer diameter of the support section is larger than the outer diameter of the interference section; the interference section is interference fit with the stator, and the support section is used to support the stator.

[0008] In one embodiment of the utility model, the stator includes a plurality of stacked stator cores, the plurality of stator cores constitute an interference fit section, the interference fit section is interference fit with the interference section, and in the axial direction of the rotating shaft, the length of the interference section is greater than or equal to the length of the interference fit section.

[0009] In one embodiment of the utility model, a mounting groove is provided on one side of the side brush housing, the mounting sleeve is arranged at the bottom of the mounting groove, and the motor is arranged in the mounting groove.

[0010] In one embodiment of the utility model, a first connecting hole is provided at the bottom of the installation groove, the installation sleeve is arranged around the first connecting hole, and one end of the rotating shaft away from the stator is passed through the first connecting hole for connection with the side brush.

[0011] In an embodiment of the present utility model, the motor assembly further includes a transmission mechanism, and the rotating shaft is used to be connected to the side brush through the transmission mechanism, so as to drive the side brush to rotate through the transmission mechanism.

[0012] In one embodiment of the utility model, a cavity is formed in the side brush housing, the transmission mechanism is arranged in the cavity, the mounting groove is connected to the cavity through the first connecting hole, and the end of the rotating shaft away from the stator passes through the first connecting hole to extend into the cavity and is connected to the transmission mechanism in a transmission manner;

[0013] The side brush housing is also provided with a second communicating hole communicating with the cavity, and the output shaft of the transmission mechanism passes through the second communicating hole to extend out of the cavity and is used to be connected with the side brush.

[0014] In one embodiment of the present utility model, the transmission mechanism includes motor teeth, secondary teeth, output teeth and an output shaft, the motor teeth are sleeved on the rotating shaft, the secondary teeth are meshed with the motor teeth, the output teeth are meshed with the secondary teeth, and the output shaft is passed through the output teeth.

[0015] The utility model also provides a cleaning side brush, comprising a side brush and the motor assembly as described above, wherein the rotating shaft of the motor assembly is connected to the side brush through a transmission mechanism to drive the side brush to rotate.

[0016] The utility model also provides a cleaning device, comprising the cleaning side brush as described above.

[0017] In the motor assembly proposed by the utility model, the stator and the rotor of the motor are separately arranged. During the assembly process, the stator is first sleeved on the mounting sleeve of the side brush housing and has an interference fit with the mounting sleeve. Then, the cover of the rotor is covered on the stator, and the rotating shaft of the rotor is passed through the mounting sleeve. Then, the motor can be installed on the side brush housing to complete the assembly of the motor assembly. In this process, since the stator is first fixedly installed on the mounting sleeve and then the rotor is installed, the coaxial adjustment process of the motor can be reduced; and, by making the stator and the mounting sleeve have an interference fit, the use of screw fasteners to achieve the installation of the stator can be reduced, and the process of locking the screws is reduced, thereby making it easier to assemble the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is a schematic structural diagram of an embodiment of a motor assembly of the utility model;

[0020] Figure 2 It is a side view of an embodiment of the motor assembly of the utility model;

[0021] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0022] Figure 4 for Figure 2 Cross-sectional view at the middle BB.

[0023] Description of Figure Numbers:

[0024] Label name Label name 100 Motor components 21 stator 10 Side brush housing 211 Interference fit section 11 Mounting sleeve 22 Rotor 111 Support segment 221 Housing 112 Interference section 222 Shaft 12 Mounting slot 223 Magnetic ring 13 First communication hole 30 Transmission mechanism 14 Cavity 31 Motor gear 15 Second communication hole 32 Secondary gear 16 Bearings 33 Output gear 20 Motor 34 Output shaft

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] The utility model provides a motor assembly 100 , aiming to provide a motor assembly 100 that is convenient for assembling a motor 20 .

[0030] Combined with reference Figures 1 to 4 In one embodiment of the motor assembly 100 of the utility model, the motor assembly 100 includes a side brush housing 10 and a motor 20; a mounting sleeve 11 is provided on one side of the side brush housing 10; the motor 20 includes a detachable stator 21 and a rotor 22, the stator 21 is sleeved on the mounting sleeve 11 and has an interference fit with the mounting sleeve 11, the rotor 22 includes a cover 221 and a rotating shaft 222, the cover 221 is covered on the stator 21, one end of the rotating shaft 222 is passed through the mounting sleeve 11 and is connected to the cover 221, and the other end of the rotating shaft 222 is used to connect with the side brush.

[0031] It is understandable that in the motor assembly 100 proposed by the utility model, the stator 21 and the rotor 22 of the motor 20 are separately arranged. During the assembly process, the stator 21 is firstly sleeved on the mounting sleeve 11 of the side brush housing 10 and is interference fit with the mounting sleeve 11. Then, the cover 221 of the rotor 22 is covered on the stator 21, and the rotating shaft 222 of the rotor 22 is passed through the mounting sleeve 11. Then, the motor 20 can be installed on the side brush housing 10 to complete the assembly of the motor assembly 100. In this process, since the stator 21 is first fixedly installed on the mounting sleeve 11 and then the rotor 22 is installed, the centering and coaxial adjustment process of the motor 20 can be reduced; and, by making the stator 21 and the mounting sleeve 11 have an interference fit, the use of screw fasteners to achieve the installation of the stator 21 can be reduced, and the process of locking screws can be reduced, thereby making it more convenient to assemble the motor 20.

[0032] In addition, the use of screw fasteners is reduced, and the material cost of the screw fasteners can also be saved.

[0033] In some embodiments, the mounting sleeve 11 can be integrally formed on one side of the side brush housing 10 , which can not only improve the connection reliability between the mounting sleeve 11 and the side brush housing 10 , but also simplify the manufacturing process.

[0034] In some embodiments, the inner wall of the cover 221 is provided with a magnetic ring 223, and the magnetic ring 223 is spaced apart from the stator 21. The arrangement of the magnetic ring 223 can form an effective electromagnetic circuit, so that the electromagnetic effect of the motor 20 is stronger, the power of the motor 20 is greater, and thus the operation efficiency of the motor 20 is improved; the magnetic ring 223 can also effectively avoid the vibration inside the motor 20, thereby improving the reliability and stability of the motor 20, and making the operation of the motor 20 safer and more reliable; the magnetic ring 223 also has a certain compensation effect on the no-load and full-load conditions of the motor 20, and can better stabilize the speed of the motor 20, and extend the service life and performance of the motor 20; the magnetic ring 223 can also play the role of insulation and isolation, and avoid short circuit inside the motor 20.

[0035] In some embodiments, a bearing 16 is provided between the mounting sleeve 11 and the rotating shaft 222 , and the rotating shaft 222 can be effectively supported by the bearing 16 to ensure the normal operation of the rotor 22 .

[0036] Optionally, see Figure 3 , Figure 4 In one embodiment of the motor assembly 100 of the utility model, the mounting sleeve 11 includes a support section 111 and an interference section 112 connected along its axial direction, the support section 111 is connected to the side brush housing 10, and the outer diameter of the support section 111 is larger than the outer diameter of the interference section 112; the interference section 112 is interference fit with the stator 21, and the support section 111 is used to support the stator 21.

[0037] With such arrangement, during the assembly process, the stator 21 can be inserted from the interference section 112 of the mounting sleeve 11 until the stator 21 abuts against the supporting section 111 of the mounting sleeve 11. The interference fit between the stator 21 and the interference section 112 can be achieved, and at the same time, the stator 21 can be effectively supported by the supporting section 111, which can improve the installation reliability and stability of the stator 21.

[0038] In some embodiments, the support segment 111 and the interference segment 112 are an integrally formed structure, which can not only ensure the connection reliability between the support segment 111 and the interference segment 112, but also simplify the preparation process.

[0039] In some embodiments, the support segment 111 and the interference segment 112 are coaxially arranged, which can improve the support strength of the support segment 111 on the stator 21 .

[0040] Optionally, see Figure 3 , Figure 4 In one embodiment of the motor assembly 100 of the utility model, the stator 21 includes a plurality of stacked stator 21 cores, and the plurality of stator 21 cores constitute an interference fit section 211. The interference fit section 211 is interference fit with the interference section 112. In the axial direction of the rotating shaft 222, the length of the interference section 112 is greater than or equal to the length of the interference fit section 211.

[0041] In this arrangement, by making a plurality of stator 21 iron cores form an interference fit section 211, and the length of the interference section 112 is greater than or equal to the length of the interference fit section 211, the stator 21 can achieve interference fit with the interference section 112 of the mounting sleeve 11 through the interference fit section 211, thereby increasing the interference fit area between the stator 21 and the mounting sleeve 11, thereby improving the strength of the interference fit between the stator 21 and the mounting sleeve 11.

[0042] Optionally, see Figures 1 to 4In one embodiment of the motor assembly 100 of the present utility model, a mounting groove 12 is provided on one side of the side brush housing 10 , a mounting sleeve 11 is disposed at the bottom of the mounting groove 12 , and the motor 20 is disposed in the mounting groove 12 .

[0043] In this way, by installing the motor 20 in the installation groove 12, not only can the motor 20 be protected, but the motor 20 can also be installed outside the side brush housing 10 to facilitate the assembly and maintenance of the motor 20, and also enable the motor 20 and the side brush housing 10 to achieve a compact design.

[0044] In some embodiments, the motor 20 can be completely accommodated in the mounting groove 12, that is, the surface where the notch of the mounting groove 12 is located protrudes from the outer surface of the motor 20, so that the cleaning device can reduce the collision with the motor 20 during operation, thereby reducing the risk of damage to the motor 20.

[0045] Optionally, see Figure 3 In one embodiment of the motor assembly 100 of the utility model, a first connecting hole 13 is provided at the bottom of the mounting groove 12, the mounting sleeve 11 is arranged around the first connecting hole 13, and one end of the rotating shaft 222 away from the stator 21 is passed through the first connecting hole 13 for connection with the side brush.

[0046] In this way, by arranging the mounting sleeve 11 around the first connecting hole 13, one end of the rotating shaft 222 can pass through the mounting sleeve 11 and then through the first connecting hole 13, so that one end of the rotating shaft 222 can be smoothly connected to the side brush, and at the same time, interference between the mounting sleeve 11 and the rotor 22 can be avoided.

[0047] Optionally, see Figure 4 In one embodiment of the motor assembly 100 of the present invention, the motor assembly 100 further includes a transmission mechanism 30 , and the rotating shaft 222 is used to connect with the side brush through the transmission mechanism 30 to drive the side brush to rotate through the transmission mechanism 30 .

[0048] In this configuration, the rotating shaft 222 drives the side brush to rotate through the transmission mechanism 30. The transmission mechanism 30 can convert the input of high speed and small torque into the output of low speed and large torque to adapt to different working environments and needs of mechanical equipment.

[0049] Optionally, see Figure 3 , Figure 4In one embodiment of the motor assembly 100 of the utility model, a cavity 14 is formed in the side brush housing 10, and the transmission mechanism 30 is arranged in the cavity 14. The mounting groove 12 is connected to the cavity 14 through the first connecting hole 13, and the end of the rotating shaft 222 away from the stator 21 passes through the first connecting hole 13 to extend into the cavity 14, and is connected to the transmission mechanism 30 for transmission; the side brush housing 10 is also provided with a second connecting hole 15 connected to the cavity 14, and the output shaft 34 of the transmission mechanism 30 passes through the second connecting hole 15 to extend out of the cavity 14, and is used to connect with the side brush.

[0050] In this way, by disposing the transmission mechanism 30 in the cavity 14 of the side brush housing 10, the transmission mechanism 30 can be protected to extend the service life of the transmission mechanism 30 and improve the safety of use.

[0051] In some embodiments, in order to facilitate the assembly of the transmission mechanism 30 into the cavity 14 of the side brush housing 10, the side brush housing 10 may include a detachable bottom shell and a cover body, wherein the cover body is covered on the bottom shell and encloses the cavity 14 with the bottom shell.

[0052] Optionally, in order to facilitate the installation of the motor 20 and the side brush, the motor 20 and the side brush may be installed on the same side surface of the cover.

[0053] Optionally, see Figure 4 In one embodiment of the motor assembly 100 of the present invention, the transmission mechanism 30 includes a motor tooth 31, a secondary tooth 32, an output tooth 33 and an output shaft 34. The motor tooth 31 is sleeved on the rotating shaft 222, the secondary tooth 32 is meshed with the motor tooth 31, the output tooth 33 is meshed with the secondary tooth 32, and the output shaft 34 is passed through the output tooth 33.

[0054] With such arrangement, the rotating shaft 222 of the rotor 22 can drive the motor teeth 31 to rotate during the rotation process, the motor teeth 31 can drive the secondary teeth 32 to rotate, the secondary teeth 32 can drive the output teeth 33 to rotate, the output value can drive the output shaft 34 to rotate, and finally drive the side brush to rotate through the output shaft 34. This can not only drive the side brush to rotate more smoothly, but also better adapt to different working environments and needs of mechanical equipment.

[0055] The embodiment of the utility model further provides a cleaning side brush, which includes a side brush and the motor assembly 100 as described above. The specific structure of the motor assembly 100 is detailed in the above embodiment. Since the cleaning side brush adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by all the technical solutions of all the above embodiments, which will not be described one by one here. Among them, the rotating shaft 222 of the motor assembly 100 is connected to the side brush through the transmission mechanism 30 to drive the side brush to rotate.

[0056] The present utility model also provides a cleaning device, which includes the cleaning side brush as described above. The specific structure of the cleaning side brush is detailed in the above embodiment. Since the cleaning device adopts all the technical solutions of the above embodiment, it has at least all the beneficial effects brought by all the technical solutions of all the above embodiments, which will not be described one by one here.

[0057] In actual application, the cleaning device may be a sweeping robot, a vacuum cleaner or other cleaning equipment.

[0058] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A motor assembly, characterized in that: include: A side brush housing, one side of which is provided with a mounting sleeve; The motor comprises a separable stator and a rotor, wherein the stator is sleeved on the mounting sleeve and has an interference fit with the mounting sleeve, and the rotor comprises a cover shell and a rotating shaft, wherein the cover shell covers the stator, one end of the rotating shaft is passed through the mounting sleeve and connected to the cover shell, and the other end of the rotating shaft is used to be connected to a side brush.

2. The motor assembly according to claim 1, characterized in that The mounting sleeve includes a support section and an interference section connected along its axial direction, the support section is connected to the side brush housing, and the outer diameter of the support section is larger than the outer diameter of the interference section; the interference section is interference fit with the stator, and the support section is used to support the stator.

3. The motor assembly according to claim 2, characterized in that The stator comprises a plurality of stacked stator cores, the plurality of stator cores forming an interference fit section, the interference fit section being interference fit with the interference section, and in the axial direction of the rotating shaft, the length of the interference section is greater than or equal to the length of the interference fit section.

4. The motor assembly according to any one of claims 1 to 3, characterized in that: A mounting groove is provided on one side of the side brush housing, the mounting sleeve is arranged at the groove bottom of the mounting groove, and the motor is arranged in the mounting groove.

5. The motor assembly according to claim 4, characterized in that A first connecting hole is provided at the bottom of the installation groove, the installation sleeve is arranged around the first connecting hole, and one end of the rotating shaft away from the stator is passed through the first connecting hole for connection with the side brush.

6. The motor assembly according to claim 5, characterized in that The motor assembly further comprises a transmission mechanism, and the rotating shaft is used to be connected with the side brush through the transmission mechanism, so as to drive the side brush to rotate through the transmission mechanism.

7. The motor assembly according to claim 6, characterized in that A cavity is formed in the side brush housing, the transmission mechanism is arranged in the cavity, the mounting groove is connected to the cavity through the first connecting hole, and one end of the rotating shaft away from the stator passes through the first connecting hole to extend into the cavity and is connected to the transmission mechanism in a transmission manner; The side brush housing is also provided with a second communicating hole communicating with the cavity, and the output shaft of the transmission mechanism passes through the second communicating hole to extend out of the cavity and is used to be connected with the side brush.

8. The motor assembly according to claim 7, characterized in that The transmission mechanism includes motor teeth, secondary teeth, output teeth and an output shaft. The motor teeth are sleeved on the rotating shaft, the secondary teeth are meshed with the motor teeth, the output teeth are meshed with the secondary teeth, and the output shaft is passed through the output teeth.

9. A cleaning side brush, characterized in that: It comprises a side brush and a motor assembly as claimed in any one of claims 1 to 8, wherein a rotating shaft of the motor assembly is connected to the side brush via a transmission mechanism to drive the side brush to rotate.

10. A cleaning device, characterized in that: Includes the cleaning side brush of claim 9.

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