Waterproof sealed motor

CN224790438UActive Publication Date: 2026-09-22NINGBO ZHIYUAN ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202521702778.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-09-22
Estimated Expiration
2035-08-11

AI Technical Summary

Technical Problem

然而,在厨房电器等高湿、高温、油烟密集的工作环境中,传统减速电机往往存在防护等级不足的问题,特别是水汽、油雾等易通过电机壳体缝隙、电源线入口等部位渗入电机内部,导致电机绝缘性能下降、电气短路甚至烧毁等故障频发,从而影响产品寿命和用户使用安全

Benefits of technology

[0012](1)电机本体与电机壳之间通过密封胶填充,确保内部电机与外界绝缘;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof sealed motor belongs to motor technical field, including motor body, the motor body outside is equipped with motor shell, be provided with power cord in the motor shell, power cord one end penetrates motor shell, the motor body is provided with first rotating shaft on the side away from power cord, the motor shell is provided with the shell away from power cord one side, the shell top is fixedly installed with end cover through bolt, be provided with reduction assembly in the shell, the utility model discloses a kind of waterproof sealed motor above-mentioned, can effectively protect motor from the erosion of water vapor and oil fume.
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Description

Technical Field

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

[0002] As a core power component in systems such as kitchen appliances, home appliances, and industrial equipment, the motor's operational stability and environmental adaptability have a significant impact on the overall performance of the machine. However, in high-humidity, high-temperature, and oily fume-rich working environments such as kitchen appliances, traditional geared motors often suffer from insufficient protection levels. In particular, moisture and oil mist can easily seep into the motor through gaps in the motor housing and power cord inlets, leading to frequent malfunctions such as decreased insulation performance, electrical short circuits, and even burnout, thus affecting product lifespan and user safety. Summary of the Invention

[0003] The purpose of this invention is to provide a waterproof and sealed motor to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides a waterproof and sealed motor, including a motor body, a motor housing fitted over the motor body, a power cord installed inside the motor housing, one end of the power cord penetrating the motor housing, a first rotating shaft installed on the side of the motor body away from the power cord, an outer shell installed on the side of the motor housing away from the power cord, an end cap fixedly installed on the top of the outer shell by bolts, and a speed reduction assembly installed inside the outer shell.

[0005] Preferably, the deceleration assembly includes a worm gear, a second rotating shaft, a third rotating shaft, and a fourth rotating shaft. The worm gear is fixedly sleeved on the first rotating shaft, and the top and bottom ends of the second rotating shaft, the third rotating shaft, and the fourth rotating shaft are respectively fixedly connected to the end cover and the outer shell.

[0006] Preferably, a first worm wheel is engaged on one side of the worm, and a second worm wheel is coaxially disposed below the first worm wheel. Both the first worm wheel and the second worm wheel are rotatably connected to the second rotating shaft.

[0007] Preferably, a third worm gear is meshed with one side of the second worm gear, and a fourth, fifth, and sixth worm gear are coaxially arranged above the third worm gear. The third, fourth, fifth, and sixth worm gears are all rotatably connected to the third rotating shaft.

[0008] Preferably, a seventh worm gear is meshed with one side of the fourth worm gear, an eighth worm gear is disposed above the seventh worm gear, the fifth worm gear is meshed with the eighth worm gear, and both the seventh and eighth worm gears are rotatably connected to the fourth rotating shaft.

[0009] Preferably, a ninth worm gear is meshed with one side of the sixth worm gear, an output shaft is fixedly installed in the middle of the ninth worm gear, the top end of the output shaft extends out of the end cover, and the bottom end of the output shaft is rotatably connected to the housing through a bearing.

[0010] Preferably, the motor body and the motor housing are connected by sealant, and the connection between the power cord and the motor housing is also connected by sealant.

[0011] Therefore, the present invention employs the above-mentioned waterproof and sealed motor, which has the following beneficial effects:

[0012] (1) The space between the motor body and the motor housing is filled with sealant to ensure that the internal motor is insulated from the outside;

[0013] (2) The power cord also passes through the motor housing and is filled with sealant, and a recessed structure is designed to enhance the stability of the sealant coating.

[0014] (3) It adopts a multi-stage worm gear and worm combination and a shaft linkage design, which has a compact structure, high transmission efficiency, and can achieve a large reduction ratio and high output torque.

[0015] (4) It achieves an excellent combination of sealing performance and transmission performance.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a waterproof and sealed motor according to an embodiment of the present utility model;

[0018] Figure 2 This is a structural diagram of the motor housing and the interior of the outer casing according to an embodiment of the present utility model;

[0019] Figure 3 This is a rear view of the deceleration assembly according to an embodiment of the present utility model;

[0020] Figure Labels

[0021] 1. Motor body; 2. Motor housing; 3. Power cord; 4. Outer casing; 5. End cover; 6. Reduction gear assembly; 61. Worm gear; 62. Second shaft; 63. Third shaft; 64. Fourth shaft; 7. First worm gear; 8. Second worm gear; 9. Third worm gear; 10. Fourth worm gear; 11. Fifth worm gear; 12. Sixth worm gear; 13. Seventh worm gear; 14. Eighth worm gear; 15. Ninth worm gear; 16. Output shaft; 17. Bearing. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] Example

[0025] like Figure 1-3 As shown, this utility model provides a waterproof and sealed motor, including a motor body 1, a motor housing 2 fitted over the motor body 1, and a sealant connecting the motor body 1 and the motor housing 2 to ensure a complete seal. A power cord 3 is installed inside the motor housing 2, with one end of the power cord 3 penetrating the motor housing 2. The connection between the power cord 3 and the motor housing 2 is secured with sealant, and a recessed structure is created on the motor housing 2 at the connection point to ensure a complete seal. The use of sealant effectively improves the sealing performance of the motor.

[0026] A first rotating shaft is provided on the side of the motor body 1 away from the power line 3, and an outer shell 4 is provided on the side of the motor housing 2 away from the power line 3. An end cover 5 is fixedly installed on the top of the outer shell 4 by bolts, and a speed reduction assembly 6 is provided inside the outer shell 4.

[0027] The reduction assembly 6 includes a worm gear 61, a second rotating shaft 62, a third rotating shaft 63, and a fourth rotating shaft 64. The worm gear 61 is fixedly sleeved on the first rotating shaft. The top and bottom ends of the second rotating shaft 62, the third rotating shaft 63, and the fourth rotating shaft 64 are respectively fixedly connected to the end cover 5 and the outer shell 4. A first worm wheel 7 is meshed on one side of the worm gear 61. A second worm wheel 8 is coaxially arranged below the first worm wheel 7. Both the first worm wheel 7 and the second worm wheel 8 are rotatably connected to the second rotating shaft 62.

[0028] The second worm gear 8 is meshed with a third worm gear 9 on one side. A fourth worm gear 10, a fifth worm gear 11, and a sixth worm gear 12 are coaxially arranged above the third worm gear 9. All three worm gears 9, 10, 11, and 12 are rotatably connected to the third rotating shaft 63. A seventh worm gear 13 is meshed with a fourth worm gear 10 on one side. An eighth worm gear 14 is arranged above the seventh worm gear 13. The fifth worm gear 11 and the eighth worm gear 14 are meshed with each other. Both the seventh and eighth worm gears 13 are rotatably connected to the fourth rotating shaft 64, meaning that the seventh worm gear 13 and the eighth worm gear 14 are coaxially arranged.

[0029] The sixth worm gear 12 is meshed with the ninth worm gear 15 on one side. The output shaft 16 is fixedly installed in the middle of the ninth worm gear 15. The top end of the output shaft 16 extends out of the end cover 5, and the bottom end of the output shaft 16 is rotatably connected to the outer casing 4 through the bearing 17.

[0030] The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in existing technology. The machinery, parts and equipment all adopt conventional models in existing technology. In addition, the circuit connection adopts conventional connection methods in existing technology, which will not be described in detail here.

[0031] Working principle: When the motor is started, the motor body 1 drives the first rotating shaft to rotate, the first rotating shaft drives the worm 61 to rotate, the worm 61 drives the second worm wheel 8 to rotate through the first worm wheel 7, the second worm wheel 8 drives the fourth worm wheel 10, the fifth worm wheel 11 and the sixth worm wheel 12 to rotate through the third worm wheel 9, the fourth worm wheel 10 drives the seventh worm wheel 13 to rotate, the fifth worm wheel 11 drives the eighth worm wheel 14 to rotate, the sixth worm wheel 12 drives the ninth worm wheel 15 to rotate, and finally the ninth worm wheel 15 drives the output shaft 16 to rotate.

[0032] Therefore, this utility model adopts the above-mentioned waterproof and sealed motor, which achieves an organic combination of excellent sealing performance and transmission performance.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A waterproof and sealed motor, characterized in that: The device includes a motor body, a motor housing is fitted over the motor body, a power cord is installed inside the motor housing, one end of the power cord passes through the motor housing, a first rotating shaft is installed on the side of the motor body away from the power cord, an outer shell is installed on the side of the motor housing away from the power cord, an end cap is fixedly installed on the top of the outer shell by bolts, and a speed reduction assembly is installed inside the outer shell. The deceleration assembly includes a worm gear, a second rotating shaft, a third rotating shaft, and a fourth rotating shaft. The worm gear is fixedly sleeved on the first rotating shaft, and the top and bottom ends of the second rotating shaft, the third rotating shaft, and the fourth rotating shaft are respectively fixedly connected to the end cap and the outer shell.

2. The waterproof and sealed motor according to claim 1, characterized in that: A first worm gear is engaged on one side of the worm, and a second worm gear is coaxially disposed below the first worm gear. Both the first worm gear and the second worm gear are rotatably connected to the second rotating shaft.

3. A waterproof and sealed motor according to claim 2, characterized in that: A third worm gear is meshed with one side of the second worm gear, and a fourth, fifth, and sixth worm gear are coaxially arranged above the third worm gear. The third, fourth, fifth, and sixth worm gears are all rotatably connected to the third rotating shaft.

4. A waterproof and sealed motor according to claim 3, characterized in that: The fourth worm gear is meshed with a seventh worm gear on one side, and an eighth worm gear is disposed above the seventh worm gear. The fifth worm gear is meshed with the eighth worm gear, and both the seventh and eighth worm gears are rotatably connected to the fourth rotating shaft.

5. A waterproof and sealed motor according to claim 4, characterized in that: The sixth worm gear is meshed with the ninth worm gear on one side. An output shaft is fixedly installed in the middle of the ninth worm gear. The top end of the output shaft extends out of the end cover, and the bottom end of the output shaft is rotatably connected to the outer casing through a bearing.

6. A waterproof and sealed motor according to claim 1, characterized in that: The motor body and the motor housing are connected by sealant, and the connection between the power cord and the motor housing is also connected by sealant.