Motor, drum device, and cleaning robot

Abstract

The application provides an electric machine, a roller device and a cleaning robot. The electric machine comprises a shell, an electric machine body and a heat pipe. The shell encloses a receiving cavity, and at least part of the electric machine body and at least part of the heat pipe are located in the receiving cavity. The electric machine body comprises an electric machine shaft, at least one end of the electric machine shaft is located outside the receiving cavity. The heat pipe is provided with a first water inlet and a first water outlet. The heat pipe and the electric machine body conduct heat, and the electric machine body is cooled by water flowing through the heat pipe, so as to improve the heat dissipation performance and prolong the service life of the electric machine.

Description

Technical Field

[0001] This application relates to the field of motors, and more particularly to motors, roller devices, and cleaning robots. Background Technology

[0002] A cleaning robot is a smart home appliance that uses artificial intelligence to automatically perform cleaning tasks such as sweeping, vacuuming, and mopping in a room. Current cleaning robots use motors to drive rollers to clean floors. However, the high power of the motors during cleaning operations can lead to excessive heat generation, affecting motor performance. Utility Model Content

[0003] This application provides a motor, a roller device, and a cleaning robot that can improve heat dissipation performance.

[0004] This application provides an electric motor, including: a housing, an electric motor body, and a heat-conducting pipe. The housing forms a receiving cavity, and at least a portion of the electric motor body and at least a portion of the heat-conducting pipe are located within the receiving cavity. The electric motor body includes a motor shaft, and at least one end of the motor shaft is located outside the receiving cavity. The heat-conducting pipe is provided with a first water inlet and a first water outlet. The heat-conducting pipe conducts heat with the electric motor body to cool the electric motor body.

[0005] Furthermore, the heat pipe is fixed to the motor body.

[0006] Furthermore, the heat pipe is glued to the motor body.

[0007] Furthermore, the motor body includes a first magnet and a second magnet, and at least a portion of the heat pipe is located between the first magnet and the second magnet. The heat pipe is in direct or indirect contact with the first magnet and / or the second magnet for heat conduction.

[0008] Furthermore, the heat pipe includes a first heat pipe, a second heat pipe, and a third heat pipe connected in sequence, with at least a portion of the first heat pipe and at least a portion of the third heat pipe located between the first magnet and the second magnet. The first heat pipe is in direct or indirect contact with the first magnet for heat conduction, and / or the third heat pipe is in direct or indirect contact with the second magnet for heat conduction.

[0009] Furthermore, the first magnet and the second magnet are fixed to the outer casing.

[0010] Furthermore, the heat pipe includes a first heat pipe, a second heat pipe, and a third heat pipe connected in sequence. The first heat pipe and the third heat pipe extend along the length direction of the motor. The first water inlet is disposed on the first heat pipe, and the first water outlet is disposed on the third heat pipe.

[0011] Furthermore, the second heat pipe is annular and located on the outer side of the motor body in the axial direction.

[0012] Furthermore, the first plane where the second heat pipe is located is perpendicular to the second plane where the first heat pipe and the third heat pipe are located.

[0013] Furthermore, the motor includes an end cap, which is assembled to the housing. The end cap has a through hole for the motor shaft to pass through, and a recessed groove is provided. At least a portion of the first heat-conducting pipe and at least a portion of the third heat-conducting pipe are housed in the recessed groove, and the first water inlet and the first water outlet extend beyond the end cap.

[0014] This application also provides a roller device for a cleaning robot, including a roller and a motor, wherein the motor drives the roller to rotate.

[0015] Furthermore, the roller has a cavity, the motor is located inside the cavity, and the motor shaft is connected to the roller to drive the roller to rotate.

[0016] This application also provides a cleaning robot, including a water tank, a water distribution device, and the roller device. The second water outlet of the water tank is connected to the first water inlet of the heat-conducting pipe, and the first water outlet of the heat-conducting pipe is connected to the third water inlet of the water distribution device. The water distribution device is used to guide water to the roller.

[0017] The motor in this embodiment includes a housing, a motor body, and a heat pipe. The heat pipe has a first water inlet and a first water outlet. The heat pipe conducts heat with the motor body. Water flowing through the heat pipe cools the motor body, thereby improving heat dissipation performance and extending the life of the motor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the motor according to an embodiment of this application;

[0019] Figure 2 yes Figure 1 The diagram shown is a schematic of the motor after the casing has been removed.

[0020] Figure 3 yes Figure 1 An exploded view of the motor shown;

[0021] Figure 4is Figure 3 a schematic diagram of the housing of the electric motor shown;

[0022] Figure 5 is Figure 3 a schematic diagram of the end cover of the electric motor shown;

[0023] Figure 6 is Figure 3 a schematic diagram of the heat conduction tube of the electric motor shown;

[0024] Figure 7 is a schematic diagram of the cleaning robot according to the embodiment of the present application, in which only a part of the cleaning robot is shown. Detailed Description of the Embodiments

[0025] The technical solutions in the embodiments (or referred to as "implementations") of the present application will be clearly and completely described hereinafter with reference to the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numerals in different accompanying drawings denote the same or similar elements.

[0026] If there are terms related to directional indications or positional relationships (such as up, down, left, right, front, rear, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.) in the embodiments of the present application, such terms are only used to explain the relative positional relationship, movement conditions, etc. between the components under a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second" and the like referred to in the embodiments of the present application are only for the purpose of convenient description, and cannot be understood as indicating or implying relative importance.

[0027] Refer Figures 1 to 2 , an implementation of the present application provides an electric motor, which includes a housing 1, an electric motor main body 2 and a heat conduction tube 3.

[0028] Refer Figures 1 to 6 , the housing 1 encloses an accommodating cavity 10. At least part of the electric motor main body 2 is located in the accommodating cavity 10. The electric motor main body 2 includes an electric motor shaft 21. At least one end of the electric motor shaft 21 is located outside the accommodating cavity 10.

[0029] In one implementation, the electric motor shaft 21 includes a first end 211 and a second end 212 opposite to each other. Both the first end 211 and the second end 212 are located outside the accommodating cavity 10, and the electric motor has two power output ends. In another implementation, only the first end 211 or only the second end 212 may be located outside the accommodating cavity 10, and the electric motor has only one power output end.

[0030] In one embodiment, the motor body 2 includes a first magnet 22 and a second magnet 23 to drive the motor shaft 21 to rotate.

[0031] In one embodiment, the motor body 2 includes a rotor 24 located between the first magnet 22 and the second magnet 23. The motor shaft 21 is connected to the rotor 24. The N pole of the first magnet 22 and the S pole of the second magnet 23 are arranged opposite to each other to form a magnetic field.

[0032] In one embodiment, the rotor 24 includes an iron core (not shown) and windings (not shown). When the windings are energized, they generate an induced magnetic field, which interacts with the magnetic fields formed by the first magnet 22 and the second magnet 23, causing the rotor 24 to rotate continuously.

[0033] In one embodiment, the first magnet 22 and the second magnet 23 are fixed to the outer casing 1. In another embodiment, the heat generated by the first magnet 22 and the second magnet 23 can be exchanged with the outer casing 1 for heat dissipation.

[0034] In one embodiment, the outer casing 1 is made of metal, which can effectively protect the motor body 2 and has good thermal conductivity for better heat dissipation. For example, it can be made of aluminum alloy, cast iron, steel plate, etc.

[0035] In one embodiment, the outer casing 1 is cylindrical, with openings at both ends of the enclosed receiving cavity 10. The motor also includes a pair of end caps 4. The pair of end caps 4 are respectively assembled to opposite ends of the outer casing 1. The end caps 4 have through holes 41 for the motor shaft 21 to pass through, and the motor shaft 21 has two power output ends. In another embodiment, only one end cap 4 may be provided. One end of the outer casing 1 has a bottom wall 11 opposite to the end cap 4, and the bottom wall 11 has a through hole (not shown) for the motor shaft 21 to pass through.

[0036] When the motor shaft 21 has only one power output end, one end of the motor shaft 21 extends out of the end cover 4 to form the power output end, and the other end of the motor shaft 21 is located inside the bottom wall or inside the other end cover 4.

[0037] The heat pipe 3 is provided with a first water inlet 311 and a first water outlet 331. The heat pipe 3 conducts heat with the motor body 2. The water flowing through the heat pipe 3 carries away the heat generated by the motor body 2, thereby cooling the motor body 2, improving the heat dissipation performance of the motor, and extending the life of the motor. At the same time, the heat conduction efficiency is high and the heat dissipation is fast, the water in the heat pipe 3 is heated quickly, and the amount of hot water output by the heat pipe 3 is also large.

[0038] At least a portion of the heat pipe 3 is located within the receiving cavity 10, without increasing the volume of the motor, and the overall size of the motor is relatively small.

[0039] In one embodiment, at least a portion of the heat pipe 3 is located between the first magnet 22 and the second magnet 23.

[0040] In one embodiment, the heat pipe 3 is in direct or indirect contact with the first magnet 22 for heat conduction.

[0041] In one embodiment, the heat pipe 3 is in direct or indirect contact with the second magnet 23 for heat conduction.

[0042] In one embodiment, the heat pipe 3 is in direct or indirect contact with the first magnet 22 and the second magnet 23 for heat conduction.

[0043] In one embodiment, the heat pipe 3 is fixed to the motor body 2, which can serve to fix the motor body 2.

[0044] In one embodiment, the heat pipe 3 is glued to the motor body 2 for easy assembly.

[0045] In one embodiment, the heat pipe 3 is fixed to the motor body 2 with thermally conductive adhesive, which not only serves to fix the device but also efficiently transfers heat, thus improving the heat conduction efficiency.

[0046] In one embodiment, the heat pipe 3 is fixed to the first magnet 22 and the second magnet 23, which can serve to fix the first magnet 22 and the second magnet 23.

[0047] In one embodiment, the heat pipe 3 includes a first heat pipe 31, a second heat pipe 32, and a third heat pipe 33 connected in sequence. At least a portion of the first heat pipe 31 and at least a portion of the third heat pipe 33 are located between the first magnet 22 and the second magnet 23, making full use of the space between the first magnet 22 and the second magnet 23, without occupying additional space within the receiving cavity 10, thereby achieving the purpose of not increasing the size of the motor.

[0048] In one embodiment, the first heat pipe 31 is in direct or indirect contact with the first magnet 22 to conduct heat, thereby improving the heat conduction efficiency.

[0049] In one embodiment, the third heat pipe 33 is in direct or indirect contact with the second magnet 23 to conduct heat, thereby improving the heat conduction efficiency.

[0050] In one embodiment, the first heat pipe 31 is in direct or indirect contact with the first magnet 22 for heat conduction, and the third heat pipe 33 is in direct or indirect contact with the second magnet 23 for heat conduction, so as to improve heat conduction efficiency.

[0051] In one embodiment, the first heat pipe 31 is fixed to the first magnet 22, for example, by adhesive.

[0052] In one embodiment, the third heat pipe 33 is fixed to the second magnet 23, for example, by adhesive.

[0053] In one embodiment, the first heat pipe 31 is fixed to the first magnet 22, for example, by adhesive, and the third heat pipe 33 is fixed to the second magnet 23, for example, by adhesive.

[0054] The first heat pipe 31 and the third heat pipe 33 extend along the length of the motor. The heat pipe 3 has a large contact area with the motor body 2, which can improve the heat conduction efficiency. The first water inlet 311 is disposed on the first heat pipe 31, and the first water outlet 331 is disposed on the third heat pipe 33.

[0055] In one embodiment, the end cap 4 is provided with a recessed groove 42, in which at least a portion of the first heat-conducting pipe 31 and at least a portion of the third heat-conducting pipe 33 are received. The first water inlet 311 and the first water outlet 331 extend beyond the end cap 4, facilitating the connection of the first water inlet 311 and the first water outlet 331 to a fixed water pipe.

[0056] In one embodiment, the first water inlet 311 and the first water outlet 331 have the same orientation. The orientations of the first water inlet 311 and the first water outlet 331 may also differ, and can be adjusted according to the actual application scenario.

[0057] In one embodiment, the first heat-conducting pipe 31 and the third heat-conducting pipe 33 are straight pipes arranged in parallel, which not only increases the contact area with the motor body 2, but also improves the smoothness and speed of water flow in the heat-conducting pipe 3.

[0058] In one embodiment, the second heat pipe 32 is annular and located on the outer side of the motor body 2 in the axial direction. The second heat pipe 32 avoids the limited space between the first magnet 22 and the second magnet 23, which is beneficial to the processing of the heat pipe 3.

[0059] The ring includes non-closed rings.

[0060] In one embodiment, the first plane where the second heat conduction pipe 32 is located is perpendicular to the second plane where the first heat conduction pipe 31 and the third heat conduction pipe 33 are located, so as to save space.

[0061] In one embodiment, the second heat conduction pipe 32 is in direct contact or indirect contact with the first magnet 22 and the second magnet 23 for heat conduction, so as to improve the heat conduction efficiency. The second heat conduction pipe 32 may be in direct contact or indirect contact with only the first magnet 22 or the second magnet 23 for heat conduction.

[0062] Reference Figure 7 as shown, an embodiment of the present application provides a roller device 5 for a cleaning robot. The roller device 5 includes a roller 51 and the electric motor, and the electric motor drives the roller 51 to rotate for cleaning.

[0063] In one embodiment, the roller 51 is provided with a cavity, the electric motor is located in the cavity, and the motor shaft 21 is connected to the roller 51 to drive the roller 51 to rotate.

[0064] An embodiment of the present application further provides a cleaning robot, including a water tank 6, a water distribution device 7 and the roller device 5. The second water outlet 61 of the water tank 6 is in communication with the first water inlet 311 of the heat conduction pipe 3, the first water outlet 331 of the heat conduction pipe 3 is in communication with the third water inlet 71 of the water distribution device 7, and the water distribution device 7 is configured to guide water to the roller 51.

[0065] The water flow with relatively low temperature in the water tank 6 exchanges heat with the electric motor after flowing through the heat conduction pipe 3, the temperature of the water flowing out from the heat conduction pipe 3 is relatively high, and the water with relatively high temperature is delivered to the roller 51 for cleaning, which can improve the cleaning efficiency.

[0066] The arrangement of the heat conduction pipe 3 can not only cool the electric motor, but also provide warm water with relatively high temperature for the roller 51, which not only improves the performance of the electric motor, but also improves the cleaning efficiency of the cleaning robot.

[0067] In one embodiment, the cleaning robot includes a water pump 8. The fourth water inlet 81 of the water pump 8 is in communication with the second water outlet 61 of the water tank 6, and the fourth water outlet 82 of the water pump 8 is in communication with the first water inlet 311 of the heat conduction pipe 3. The water pump 8 delivers the water in the water tank 6 to the heat conduction pipe 3.

[0068] In one embodiment, the water pump 8 may not be provided, and the second water outlet 61 of the water tank 6 is directly communicated with the first water inlet 311 of the heat conduction pipe 3 through a water pipe.

[0069] In one embodiment, the water pump 8 and the water tank 6, the water pump 8 and the heat-conducting pipe 3, and the heat-conducting pipe 3 and the water distribution device 7 can all be connected by water pipes.

[0070] The motor described in this application can be used not only in roller mopping scenarios but also in other cleaning methods such as disc mopping. This application does not limit the application scenarios of the motor.

[0071] It should be noted that the technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An electric motor, characterized in that, include: The outer shell forms a receiving cavity; The motor body is at least partially located within the receiving cavity, and the motor body includes a motor shaft, with at least one end of the motor shaft located outside the receiving cavity; A heat-conducting pipe is located at least partially within the receiving cavity. The heat-conducting pipe has a first water inlet and a first water outlet. The heat-conducting pipe conducts heat with the motor body to cool the motor body.

2. The motor according to claim 1, characterized in that, The heat pipe is fixed to the motor body.

3. The motor according to claim 2, characterized in that, The heat pipe is glued to the motor body.

4. The motor according to claim 1, characterized in that, The motor body includes a first magnet and a second magnet, and at least a portion of the heat pipe is located between the first magnet and the second magnet. The heat pipe is in direct or indirect contact with the first magnet and / or the second magnet for heat conduction.

5. The motor according to claim 4, characterized in that, The heat pipe includes a first heat pipe, a second heat pipe, and a third heat pipe connected in sequence. At least a portion of the first heat pipe and at least a portion of the third heat pipe are located between the first magnet and the second magnet. The first heat pipe is in direct or indirect contact with the first magnet for heat conduction, and / or the third heat pipe is in direct or indirect contact with the second magnet for heat conduction.

6. The motor according to claim 4, characterized in that, The first magnet and the second magnet are fixed to the outer casing.

7. The motor according to claim 1, characterized in that, The heat pipe includes a first heat pipe, a second heat pipe, and a third heat pipe connected in sequence. The first heat pipe and the third heat pipe extend along the length direction of the motor. The first water inlet is disposed on the first heat pipe, and the first water outlet is disposed on the third heat pipe.

8. The motor according to claim 5 or 7, characterized in that, The second heat pipe is annular and located on the outer side of the motor body in the axial direction.

9. The motor according to claim 8, characterized in that, The first plane where the second heat pipe is located is perpendicular to the second plane where the first heat pipe and the third heat pipe are located.

10. The motor according to claim 5 or 7, characterized in that, The motor includes an end cap, which is assembled to the housing. The end cap has a through hole for the motor shaft to pass through, and a recessed groove. At least a portion of the first heat pipe and at least a portion of the third heat pipe are housed in the recessed groove. The first water inlet and the first water outlet extend beyond the end cap.

11. A roller device, characterized in that, It includes a roller and a motor as described in any one of claims 1 to 10, the motor driving the roller to rotate.

12. The roller device according to claim 11, characterized in that, The roller has a cavity, the motor is located inside the cavity, and the motor shaft is connected to the roller to drive the roller to rotate.

13. A cleaning robot, characterized in that, It includes a water tank, a water distribution device, and a roller device as described in claim 11 or 12, wherein the second outlet of the water tank is connected to the first inlet of the heat-conducting pipe, the first outlet of the heat-conducting pipe is connected to the third inlet of the water distribution device, and the water distribution device is used to guide water to the roller.

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