Waterproof DC motor

Abstract

The utility model relates to the field of motors. The utility model provides a waterproof DC motor comprising a housing. The shell is provided with a permanent magnet, a rotor is arranged in the permanent magnet, and the output end of the rotor penetrates through one end of the shell; a first mounting groove is formed in one side of the shell, a placement groove is fixedly formed in the first mounting groove, an open groove is formed in the placement groove, and a plurality of second open grooves are formed in an inner ring of the open groove. The placement groove is formed in the motor, and waterproof assemblies including a moving ring, an annular connecting rod and a locking plate are arranged, so that when the motor does not work, an elastic piece enables the moving ring to be kept at a preset position; the locking plate clings to the output shaft end and is made of a corrosion-resistant material, so that water is effectively prevented; during working, the first electromagnet and the second electromagnet are activated, the movable ring is driven to move along the groove, the annular connecting rod is driven, the locking plate is unlocked, the motor is far away from the output shaft end, smooth operation of the motor is guaranteed, the waterproof mode and the working mode are automatically switched, and stable performance is guaranteed.

Description

Technical Field

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

[0002] A DC motor is a rotating electrical machine that can convert direct current electrical energy into mechanical energy or vice versa. It is a motor capable of converting between direct current electrical energy and mechanical energy. When operating as a motor, it is a DC motor, converting electrical energy into mechanical energy; when operating as a generator, it is a DC generator, converting mechanical energy into electrical energy.

[0003] For users of traditional DC motors, in equipment operating in humid or watery environments, the gaps at the motor output shaft end can easily become channels for moisture to seep in, thereby damaging the internal electrical components and mechanical structure of the motor, leading to performance degradation or even failure. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a waterproof DC motor, comprising a housing; a permanent magnet is disposed within the housing, and a rotor is disposed inside the permanent magnet, with the output end of the rotor penetrating one end of the housing; an installation groove is formed inside one side of the housing, a placement groove is fixedly disposed inside the installation groove, a slot is formed inside the placement groove, and several slots are formed in the inner ring of the slot, a movable ring is disposed inside the slot, and several rotating shafts are disposed in the inner ring of the movable ring, the rotating shafts are rotatably connected to an annular connecting rod, and one end of the annular connecting rod is connected to a locking plate through the rotating shaft; a second installation groove is formed on the contact surface between the slot and the movable ring, an elastic element is disposed inside the second installation groove, and a connecting block is disposed around the elastic element.

[0005] As an improvement to the above technical solution, a moving groove is provided on the side of the annular connecting rod, and a limiting post is provided inside the moving groove. The moving groove passes through the annular connecting rod, and the limiting post is fixed in the middle position of the second groove.

[0006] As an improvement to the above technical solution, an electromagnet two is provided inside the slot, and the electromagnet two is located on the side of the slot two. An electromagnet one is provided on the side of the moving ring, and the electromagnet one is located in the inner ring of the moving ring. The electromagnet one and the electromagnet two attract each other when energized.

[0007] As an improvement to the above technical solution, the locking plate is arc-shaped, and a rubber pad is provided on the side of the locking plate that contacts the rotor.

[0008] As an improvement to the above technical solution, the two opening edges of the slot are set as arcs.

[0009] The beneficial effects of this utility model are as follows: By placing a groove inside the motor and equipping it with waterproof components: a moving ring, an annular connecting rod, and a locking plate, when not in operation, the elastic element keeps the moving ring in a preset position, and the locking plate is tightly attached to the output shaft end. Made of corrosion-resistant material, it is effectively waterproof. When in operation, the first and second electromagnets are activated, driving the moving ring to move along the groove, which in turn drives the annular connecting rod to unlock the locking plate and move it away from the output shaft end, ensuring smooth operation of the motor. This design automatically switches between waterproof and operating modes to ensure stable performance. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a three-dimensional sectional view of the present invention;

[0012] Figure 3 This is a side sectional view of the present invention;

[0013] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0014] Reference numerals: 10. Housing; 11. Permanent magnet; 12. Rotor; 13. Mounting slot one; 20. Placement slot; 21. Slot; 22. Slot two; 23. Moving ring; 24. Rotating shaft; 25. Annular connecting rod; 26. Moving slot; 27. Limiting column; 28. Locking plate; 29. ​​Rubber pad; 210. Electromagnet one; 211. Electromagnet two; 212. Mounting slot two; 213. Elastic element; 214. Connecting block. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0016] Please see Figure 1-4This utility model provides a technical solution: a waterproof DC motor, including a housing 10; the housing 10 is provided with a permanent magnet 11, and a rotor 12 is provided inside the permanent magnet 11, with the output end of the rotor 12 passing through one end of the housing 10; a mounting groove 13 is provided inside one side of the housing 10, a placement groove 20 is fixedly provided inside the mounting groove 13, a slot 21 is provided inside the placement groove 20, a plurality of slots 22 are provided in the inner ring of the slot 21, a movable ring 23 is provided inside the slot 21, a plurality of rotating shafts 24 are provided in the inner ring of the movable ring 23, a ring connecting rod 25 is rotatably connected to the rotating shafts 24, and a locking plate 28 is connected to one end of the ring connecting rod 25 through the rotating shafts 24; a mounting groove 212 is provided on the contact surface between the slot 21 and the movable ring 23, an elastic element 213 is provided inside the mounting groove 212, and a connecting block 214 is provided around the elastic element 213.

[0017] In this embodiment, a waterproof component is installed inside the placement groove 20 within the housing 10 to ensure the DC motor is waterproof. The placement groove 20 contains a moving ring 23, an annular connecting rod 25, and a locking plate 28. When the motor is not in operation, the moving ring 23 is held in a preset position by the elastic element 213. At this time, the annular connecting rod 25 is connected via a rotating shaft 24, causing the locking plate 28 to fit tightly around the motor output shaft end. The locking plate 28 is typically made of corrosion-resistant material to ensure it can effectively block water flow. When the motor starts operating, electromagnets 210 and 211 are activated, pushing the moving ring 23 to move along a specific trajectory within the placement groove 20. This movement is transmitted through the annular connecting rod 25, causing the locking plate 28 to move away from the motor output shaft end, ensuring the normal operation of the motor.

[0018] Specifically, a moving groove 26 is provided on the side of the annular connecting rod 25, and a limiting post 27 is provided inside the moving groove 26. The moving groove 26 passes through the annular connecting rod 25, and the limiting post 27 is fixed in the middle position of the second groove 22.

[0019] In this embodiment, in order to ensure that the locking plate 28 moves along a predetermined trajectory when the moving ring 23 rotates, and to ensure the accuracy of the reset, a moving groove 26 is provided on the side of the annular connecting rod 25. A limiting post 27 is provided inside the moving groove 26. The moving groove 26 passes through the annular connecting rod 25, and the limiting post 27 is fixed in the middle position of the second groove 22 to ensure the normal movement and reset of the locking plate 28.

[0020] Specifically, an electromagnet 211 is installed inside the slot 21 and is located on the side of the slot 22. An electromagnet 210 is installed on the side of the moving ring 23 and is located in the inner ring of the moving ring 23. The electromagnet 210 and the electromagnet 211 attract each other when energized.

[0021] In this embodiment, through the interaction between electromagnet 1 210 and electromagnet 211, when both are energized, they generate a magnetic force that attracts each other. This magnetic force can serve as a driving force, causing the moving ring 23 to move along a predetermined path within the slot 21. This electromagnetic drive method is not only responsive but also precisely controlled, allowing for rapid adjustment of the position of the moving ring 23 as needed. Furthermore, the ring connecting rod 25 and the locking plate 28 are used to achieve tight sealing and opening of the gap at the motor output shaft end.

[0022] Specifically, the locking plate 28 is arc-shaped, and a rubber pad 29 is provided on the side of the locking plate 28 that contacts the rotor 12.

[0023] In this embodiment, a rubber pad 29 is provided on the side of the locking plate 28 that contacts the rotor 12, which enhances the sealing performance between the locking plate 28 and the rotor 12, effectively preventing the penetration of water or other liquids. In addition, its good elasticity and buffering effect reduce the vibration and noise caused by mechanical contact. The rubber pad 29 can also absorb and disperse the heat generated by the high-speed rotation of the rotor 12 to a certain extent, which helps to maintain the temperature stability inside the motor.

[0024] Specifically, the opening edge of slot 22 is set as an arc.

[0025] In this embodiment, the arc-shaped opening edge optimizes the movement trajectory of the annular connecting rod 25 within the slot 22. Since the arc-shaped edge better matches the contour of the annular connecting rod 25, it can reduce friction and resistance during movement, making the movement of the annular connecting rod 25 smoother and more stable, improving the motor's response speed and control accuracy, reducing heat and wear caused by friction, and extending the motor's service life.

[0026] The working principle and usage process of this utility model are as follows: Before starting, the locking plate 28 is tightly attached to the motor output shaft end when the electromagnet is not activated to prevent water from entering. During operation, by activating electromagnet 1 210 and electromagnet 211, the magnetic force pushes the moving ring 23 to move, which drives the ring connecting rod 25 and the locking plate 28 away from the output shaft end, ensuring smooth operation of the motor. After the operation is completed, the electromagnet is de-energized, and the locking plate 28 is reset under the action of the elastic element 213, re-sealing the gap. The whole process is completed automatically, effectively ensuring the waterproof performance and operating efficiency of the motor.

[0027] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A waterproof DC motor, characterized in that: Includes the housing (10); The housing (10) is provided with a permanent magnet (11), and a rotor (12) is provided inside the permanent magnet (11). The output end of the rotor (12) passes through one end of the housing (10). The housing (10) has an installation groove (13) on one side. A placement groove (20) is fixedly installed inside the installation groove (13). A slot (21) is opened inside the placement groove (20). Several slots (22) are opened in the inner ring of the slot (21). A moving ring (23) is installed inside the slot (21). Several rotating shafts (24) are installed in the inner ring of the moving ring (23). The rotating shafts (24) are rotatably connected to a ring connecting rod (25). One end of the ring connecting rod (25) is connected to a locking plate (28) through the rotating shaft (24). The contact surface between the slot (21) and the moving ring (23) is provided with a second mounting slot (212), and an elastic element (213) is provided inside the second mounting slot (212), and a connecting block (214) is provided around the elastic element (213).

2. A waterproof DC motor according to claim 1, characterized in that: The annular connecting rod (25) has a moving groove (26) on its side. A limiting post (27) is provided inside the moving groove (26). The moving groove (26) passes through the annular connecting rod (25). The limiting post (27) is fixed in the middle position of the second slot (22).

3. A waterproof DC motor according to claim 2, characterized in that: An electromagnet two (211) is provided inside the slot (21). The electromagnet two (211) is located on the side of the slot two (22). An electromagnet one (210) is provided on the side of the moving ring (23). The electromagnet one (210) is located in the inner ring of the moving ring (23). The electromagnet one (210) and the electromagnet two (211) attract each other when energized.

4. A waterproof DC motor according to claim 3, characterized in that: The locking plate (28) is arc-shaped, and a rubber pad (29) is provided on the side of the locking plate (28) that contacts the rotor (12).

5. A waterproof DC motor according to claim 4, characterized in that: The opening edge of the second slot (22) is set as an arc.

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