Waterproof heat dissipation speed reduction motor

Abstract

The utility model discloses a waterproof heat dissipation speed reduction motor, which relates to the technical field of motors and comprises a motor, the upper side end of the motor is connected with a speed reduction gear set, the upper side end of the speed reduction gear set is connected with an output shaft, and a protective shell is arranged outside the speed reduction gear set. The motor, the reduction gear set and the protective shell are all located in the waterproof shell, and the output shaft penetrates out of the waterproof shell; a first sealing ring is arranged between the top side wall of the protective shell and the waterproof shell, an oil seal groove is formed in the protective shell, and an oil seal is arranged in the oil seal groove; a bearing is installed in the protective shell, and the output shaft sequentially penetrates through the protective shell, the bearing and the oil seal. A heat absorption sleeve sleeving the motor is arranged in the waterproof shell, a heat dissipation plate is arranged outside the waterproof shell, a plurality of heat conduction columns are connected to the inner side face of the heat dissipation plate, and the heat conduction columns are attached to the surface of the heat absorption sleeve; and a sealing strip is arranged between the surface of the waterproof shell and the edge of the inner side surface of the heat dissipation plate, so that the heat dissipation performance can be improved while the waterproof performance is ensured, and the motor is prevented from touching water and being overheated.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a waterproof and heat-dissipating geared motor. Background Technology

[0002] With the development of artificial intelligence, many smart products have gradually come into view. Many smart products need to autonomously respond to user commands and perform related actions, and a crucial power component for these is the geared motor. Geared motors are widely used in areas such as robot wheels and smart homes. A geared motor consists of a DC motor, a multi-stage small-module gear set, and a housing. It reduces speed and increases torque, achieving a large reduction ratio transmission within a limited space. Furthermore, in recent years, the technical performance of geared motors has improved significantly, and their application scenarios have expanded considerably.

[0003] In the smart home field, devices such as cleaning robots and floor scrubbers rely on their propulsion components, such as geared motors, which inevitably come into frequent contact with water during operation due to their working environment. If the geared motor lacks sufficient waterproof protection, moisture may seep into the motor, causing a short circuit. This can not only damage the geared motor itself but also lead to electrical malfunctions, rendering the device inoperable and even posing safety hazards. Therefore, improving the waterproof performance of geared motors to ensure efficient and stable operation even in humid environments is of paramount importance.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and heat-dissipating geared motor, including a motor, a reduction gear set connected to the upper end of the motor, an output shaft connected to the upper end of the reduction gear set, and a protective shell provided outside the reduction gear set;

[0007] It also includes a waterproof housing, in which the motor, the reduction gear set and the protective housing are all housed. The top side of the waterproof housing has a perforation through which the output shaft passes and protrudes from the waterproof housing.

[0008] A first sealing ring is provided between the top sidewall of the protective shell and the top sidewall of the inner sidewall of the waterproof shell. An oil seal groove is provided on the top side of the protective shell, and an oil seal is provided in the oil seal groove.

[0009] The protective shell is also equipped with a bearing, and the output shaft passes through the protective shell, the bearing and the oil seal in sequence.

[0010] The waterproof housing is also equipped with a heat-absorbing sleeve that is fitted over the motor. The waterproof housing is equipped with a heat dissipation plate. Multiple heat-conducting columns are connected to the inner side of the heat dissipation plate. The heat-conducting columns pass through the waterproof housing and are attached to the surface of the heat-absorbing sleeve.

[0011] A sealing strip is provided between the surface of the waterproof housing and the edge of the inner side of the heat sink.

[0012] As a further embodiment of this utility model: two heat sinks are provided, which are arc-shaped and fit against the surface of the waterproof shell.

[0013] As a further embodiment of this utility model: a connecting plate is provided on the opposite side of the edges of the two heat sinks, and the two connecting plates are fixed together by bolts.

[0014] As a further embodiment of this utility model: the waterproof outer shell has multiple through holes, and the heat-conducting column passes through the through holes and fits against the surface of the heat-absorbing sleeve.

[0015] As a further embodiment of this utility model: the outer surface of the heat sink has intersecting horizontal and vertical grooves.

[0016] As a further embodiment of this utility model: the waterproof outer shell is provided with two sets of retaining rings as a group, and the two sets of retaining rings are respectively located at the upper and lower ends of the two heat dissipation plates.

[0017] As a further embodiment of this utility model: the surface of the waterproof outer shell has a sealing strip notch, and the sealing strip is fitted into the sealing strip notch.

[0018] As a further embodiment of this utility model: a second sealing ring is provided between the protective shell and the inner wall of the waterproof outer shell.

[0019] Compared with the prior art, the beneficial effects of this technical solution are as follows: by setting the first sealing ring, external water stains can be prevented from entering the waterproof housing through gaps, thus avoiding electrical faults caused by water seepage inside the motor. At the same time, by using an oil seal on the output shaft, it can ensure smooth rotation while preventing external water stains from seeping into the reduction gear set through the edge of the output shaft. This also prevents water stains from immediately seeping into the motor and prevents external dust from entering the reduction gear set, which would increase friction between the gears and reduce the service life of the reduction gear set.

[0020] While ensuring waterproof performance, the continuous operation of the motor will release a large amount of heat. At this time, the heat-absorbing sleeve absorbs the heat, and then the heat is quickly transferred to the heat dissipation plate outside the waterproof shell through the heat conduction column. Finally, the heat dissipation plate dissipates the heat into the surrounding environment, which can quickly remove the heat generated by the motor during operation and keep the motor operating at a lower operating temperature. This helps to reduce the performance degradation caused by overheating, optimize the heat dissipation design, and solve the problem that the internal sealing caused by the waterproof design cannot quickly dissipate heat. At the same time, the sealing strip is set around the inner edge of the heat dissipation plate, which can effectively prevent water stains from entering from the gap between the heat dissipation plate and the waterproof shell, and then from the gap between the heat conduction column and the waterproof shell.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the outer surface structure of the waterproof outer shell of this utility model;

[0026] The corresponding labels in the attached diagram are explained as follows:

[0027] 1. Motor; 2. Reduction gear set; 3. Output shaft; 4. Protective shell; 5. Waterproof shell; 6. First sealing ring; 7. Oil seal groove; 8. Oil seal; 9. Bearing; 10. Heat-absorbing sleeve; 11. Heat dissipation plate; 12. Heat-conducting column; 13. Sealing strip; 14. Connecting plate; 15. Bolt; 16. Through hole; 17. Horizontal groove; 18. Vertical groove; 19. Retaining ring; 20. Sealing strip notch; 21. Second sealing ring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-3 A waterproof and heat-dissipating geared motor includes a motor 1, a reduction gear set 2 connected to the upper end of the motor 1, an output shaft 3 connected to the upper end of the reduction gear set 2, and a protective shell 4 provided outside the reduction gear set 2.

[0030] It also includes a waterproof housing 5. The motor 1, the reduction gear set 2, and the protective housing 4 are all housed within the waterproof housing 5. The top side of the waterproof housing 5 has a perforation through which the output shaft 3 passes and protrudes from the waterproof housing 5. The motor 1 transmits power to the reduction gear set 2 via the input shaft. The reduction gear set 2 consists of a series of gears of different sizes. Different gear ratios are used to achieve the effects of speed reduction and torque increase. Common gear types include spur gears, helical gears, and planetary gears. The reduction gear set 2 transmits the reduced and torque-enhanced power to the output shaft 3, which then transmits it to the application end to achieve the effect of speed reduction and torque increase.

[0031] Inside the protective shell 4, there is also a bearing 9. The output shaft 3 passes through the protective shell 4, the bearing 9 and the oil seal 8 in sequence. The function of the bearing 9 is to stabilize the output shaft and ensure that the output shaft 3 can rotate smoothly while reducing the friction of the output shaft.

[0032] A first sealing ring 6 is provided between the top side wall of the protective shell 4 and the top side wall inside the waterproof shell 5. An oil seal groove 7 is provided on the top side of the protective shell 4, and an oil seal 8 is provided in the oil seal groove 7.

[0033] By setting the first sealing ring 6 between the top side wall of the protective shell 4 and the inner top wall of the waterproof shell 5, external water stains can be prevented from entering the interior of the waterproof shell 5 through the gaps, thus avoiding electrical faults caused by water seepage inside the motor 1. At the same time, by using the oil seal 8 set in the oil seal groove 7 of the protective shell 4, the oil seal 8 is fitted on the output shaft 3, which can ensure smooth rotation while preventing external water stains from seeping into the reduction gear set 2 through the edge of the output shaft 3. This can prevent water stains from immediately seeping into the interior of the motor 1, and also prevent external dust from entering the reduction gear set 2, which would increase the friction between the gears in the reduction gear set 2 and reduce the service life of the reduction gear set 2.

[0034] In this embodiment, a second sealing ring 21 is further provided between the inner wall of the protective shell 4 and the waterproof shell 5;

[0035] The second sealing ring 21 improves the sealing between the protective shell 4 and the inner wall of the waterproof shell 5, forming a double sealing effect with the first sealing ring 6, further enhancing the sealing performance.

[0036] The waterproof housing 5 is also provided with a heat-absorbing sleeve 10 that is fitted outside the motor 1. The waterproof housing 5 is provided with a heat dissipation plate 11. Multiple heat-conducting columns 12 are connected to the inner side of the heat dissipation plate 11. The heat-conducting columns 12 pass through the waterproof housing 5 and are attached to the surface of the heat-absorbing sleeve 10.

[0037] While ensuring waterproof performance through the first sealing ring 6 and oil seal 8, the continuous operation of the motor 1 will release a large amount of heat. At this time, the heat-absorbing sleeve 10 sleeved on the outside of the motor 1 absorbs the released heat, and then the heat-conducting column 12 attached to the surface of the heat-absorbing sleeve 10 quickly transfers the heat to the heat dissipation plate 11 outside the waterproof shell 5. Finally, the heat is dissipated to the surrounding environment through the heat dissipation plate 11. This can quickly remove the heat generated by the motor 1 when it is working and keep the motor 1 running at a lower operating temperature. This helps to reduce the performance degradation caused by overheating, optimize the heat dissipation design, and solve the problem that the heat cannot be quickly dissipated due to the internal sealing caused by the waterproof design.

[0038] Among them, the heat-absorbing sleeve 10 and the heat dissipation plate 11 can be made of copper, while the heat-conducting column 12 is preferably made of graphite.

[0039] A sealing strip 13 is provided between the surface of the waterproof housing 5 and the edge of the inner side of the heat sink 11;

[0040] Meanwhile, by setting a sealing strip 13 along the edge of the inner side of the waterproof housing 5 and the heat sink 11, and the sealing strip 13 running around the edge of the inner side of the heat sink 11, water stains can be effectively prevented from entering through the gap between the heat sink 11 and the waterproof housing 5, and then through the gap between the heat conduction column 12 and the waterproof housing 5.

[0041] In this embodiment, two heat sinks 11 are provided, which are arc-shaped and attached to the surface of the waterproof shell 5. The waterproof shell 5 has multiple through holes 16, and the heat conduction column 12 passes through the through holes 16 and is attached to the surface of the heat absorption sleeve 10.

[0042] There are two heat sinks 11. During assembly, the two heat sinks 11 are inserted from both sides of the waterproof housing 5, and the heat conduction column 12 is inserted into the through hole 16 so that the heat conduction column 12 is in contact with the surface of the heat absorption sleeve 10. Then the two heat sinks 11 are fixedly connected to facilitate disassembly and assembly.

[0043] In this embodiment, it is further proposed that a connecting plate 14 is provided on the opposite side of the two heat sinks 11, and the two connecting plates 14 are fixed together by bolts 15.

[0044] When assembling the two heat sinks 11, the connecting plates 14 on opposite sides of the edge will overlap each other, and then the overlapping connecting plates 14 will be fixed by bolts 15 to fix the two heat sinks 11 together.

[0045] In this embodiment, it is further proposed that the outer surface of the heat sink 11 has intersecting horizontal grooves 17 and vertical grooves 18;

[0046] By setting the horizontal grooves 17 and the vertical grooves 18, the surface area of ​​the heat sink 11 in contact with the air is increased, allowing more heat to be carried away by the surrounding air, thereby improving the heat dissipation efficiency.

[0047] In this embodiment, the waterproof housing 5 is further provided with two retaining rings 19, which are located at the upper and lower ends of the heat sink 11, respectively. The retaining rings 19 can restrict the vertical position of the heat sink 11 and prevent the heat sink 11 from falling off.

[0048] In this embodiment, the surface of the waterproof outer shell 5 is further provided with a sealing strip notch 20, and the sealing strip 13 is fitted into the sealing strip notch 20;

[0049] When the sealing strip 13 is embedded into the sealing strip notch 20, the inner wall of the heat sink 11 will press against the sealing strip 13 during the assembly of the heat sink 11, thereby increasing the sealing effect of the sealing strip 13.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A waterproof, heat-dissipating, reduced-speed motor, characterized by, The utility model provides an electric motor, the upper side end of electric motor is connected with deceleration gear set, the upper side end of deceleration gear set is connected with output shaft, deceleration gear set is equipped with protective housing outside, Further comprising a waterproof housing, the motor, the deceleration gear set and the protective housing are all in the waterproof housing, the waterproof housing top side has a perforation, the output shaft passes through the perforation and protrudes from the waterproof housing, The top side wall of the protective housing is provided with a first sealing ring between the top side wall of the waterproof housing, the top side of the protective housing is provided with an oil seal groove, and the oil seal groove is provided with an oil seal; The protective housing is further provided with a bearing, and the output shaft sequentially passes through the protective housing, the bearing and the oil seal; The waterproof housing is further provided with a heat absorption sleeve sleeved on the outside of the motor, and the waterproof housing is provided with a heat dissipation plate outside, the inner side of the heat dissipation plate is connected with a plurality of heat conduction columns, the heat conduction columns pass through the waterproof housing and are attached to the surface of the heat absorption sleeve; The surface of the waterproof housing and the edge of the inner side of the heat dissipation plate are provided with a sealing strip.

2. The waterproof, heat-dissipating, reduced-speed motor according to claim 1, characterized in that, The heat dissipation plate is provided with two, which are arc-shaped and attached to the surface of the waterproof housing.

3. The waterproof, heat-dissipating, reduced-speed motor according to claim 2, characterized in that, The edges of the two heat dissipation plates are provided with connecting plates on the opposite sides, and the two connecting plates are fixed by bolts.

4. The waterproof, heat-dissipating, reduced-speed motor according to claim 3, characterized in that, A plurality of through holes are formed on the waterproof housing, and the heat conduction columns pass through the through holes and are attached to the surface of the heat absorption sleeve.

5. The waterproof, heat-dissipating, reduced-speed motor according to claim 2, characterized in that, The outer surface of the heat dissipation plate has transverse and vertical grooves that intersect each other.

6. The waterproof, heat-dissipating, reduced-speed motor according to claim 2, characterized in that, The waterproof housing is provided with two groups of two groups of retaining rings, and the two groups of retaining rings are located on the upper ends and lower ends of the two heat dissipation plates.

7. The waterproof, heat-dissipating, reduced-speed motor according to claim 2, characterized in that, The surface of the waterproof housing has a sealing strip notch, and the sealing strip is embedded in the sealing strip notch.

8. The waterproof, heat-dissipating, reduced-speed motor according to claim 1, characterized in that, The protective housing and the inner wall of the waterproof housing are provided with a second sealing ring.

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