Water-cooled direct-current brush gear motor

By designing connection components and water-cooling components, the vibration problem of water-cooled DC brushed geared motors during operation was solved, achieving effective buffering and heat dissipation, and improving the stability and heat dissipation effect of the motor.

CN223868458UActive Publication Date: 2026-02-03GUANGDONG ZHENTAI MOTOR TECH CO LTD
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Patent Information

Application Number
CN202520797839.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-02-03
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

When existing water-cooled DC brushed geared motors are in operation, the vibration is transmitted to the water cooling device, causing shaking and affecting the heat dissipation effect.

Method used

A DC brushed geared motor including a connecting component and a water-cooling component was designed. The connecting component consists of a rotating block, a rotating rod, a sliding block, a sliding rod, a moving rod, and a sleeve, which buffers vibration. The water-cooling component achieves effective heat dissipation through cooling pipes, heat dissipation pipes, and heat sinks.

Benefits of technology

It effectively reduces the impact of vibration on the water cooling device, improves heat dissipation, prevents motor overheating, and enhances the practicality of the motor.

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    Figure CN223868458U_ABST
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Abstract

A fixing plate is arranged on the outer side of a motor body, a mounting plate is arranged at the end, away from the motor body, of the fixing plate, two sets of connecting frames are fixedly connected to the end, close to the mounting plate, of the fixing plate, connecting assemblies are arranged in the connecting frames, and a water storage tank is arranged at the end, away from the fixing plate, of the mounting plate. Compared with an existing direct-current brush gear motor, when the mounting plate moves due to vibration, a sliding block can be buffered through a compression spring, so that vibration borne by the mounting plate can be reduced, meanwhile, the mounting plate can be further buffered through a damping spring, and the service life of the mounting plate is prolonged. The shaking amplitude of the mounting plate is reduced, and influence on operation of components in the water storage tank is prevented.
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Description

Technical Field

[0001] This utility model belongs to the field of DC motor technology, specifically relating to a water-cooled DC brushed geared motor. Background Technology

[0002] A brushed DC motor is a type of DC motor. The stator of a brushed motor has fixed main magnetic poles and brushes, while the rotor has armature windings and a commutator. Electrical energy from a DC power supply enters the armature windings through the brushes and commutator, generating armature current. The magnetic field generated by this armature current interacts with the main magnetic field to produce electromagnetic torque, causing the motor to rotate and drive the load.

[0003] A search revealed that CN220172993U discloses a water-cooled DC brushed geared motor, comprising a motor body and a water-cooling device. A connecting block is installed on the front side wall of the motor body, and the water-cooling device is installed on the front side wall of the connecting block. The water-cooling device includes a fixed base, a water storage tank, a fan, and a water pump. The fixed base contains a heat exchange cavity, and the water storage tank contains hot water. Fixed columns are installed between the left and right ends of the water storage tank and the heat exchange cavity. The water-cooling device facilitates the use of the water pump to move the hot water between the heat dissipation jacket and the water storage tank. The system allows for heat exchange between the tanks, enabling the hot water to be distributed between the motor body and the air in the external environment. This dissipates the heat from the motor body to the external environment, improving the heat dissipation effect on the motor body. However, a drawback is that the motor generates vibrations during operation. When these vibrations are transmitted to the internal components of the water-cooling device, they cause the device to shake, affecting the operation of its internal parts and thus impacting the heat dissipation effect on the motor. Therefore, it is crucial to design a water-cooled DC brushed geared motor to address these shortcomings. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a water-cooled DC brushed geared motor. This motor solves the problem that, under existing technologies, when the motor is operating, the electric motor generates vibrations, which are transmitted to the inside of the water-cooling device, causing the water-cooling device to shake. This affects the operation of the internal components of the water-cooling device, thereby affecting the heat dissipation effect on the motor.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a water-cooled DC brushed geared motor, which includes a motor body; a fixing plate is provided on the outside of the motor body, and a mounting plate is provided at the end of the fixing plate away from the motor body. Two sets of connecting frames are fixedly connected at the end of the fixing plate near the mounting plate, and connecting components are provided inside the connecting frames. A water storage tank is provided at the end of the mounting plate away from the fixing plate, and a water-cooling component is provided inside the water storage tank.

[0008] The connecting assembly is used to reduce the amplitude of vibration caused by the water storage tank. The connecting assembly consists of a rotating block, two sets of rotating rods, two sets of sliding blocks, a sliding rod, a moving rod, and a sleeve. The rotating block is fixedly connected to the end of the mounting plate near the fixed plate. The two sets of rotating rods are rotatably connected to the two ends of the rotating block. The sliding block is rotatably connected to the end of the rotating rod away from the rotating block. The sliding rod is fixedly connected inside the connecting frame. The moving rod is fixedly connected to the end of the rotating block near the sliding rod and located between the two sets of rotating rods. The sleeve is fixedly connected to the center of the sliding rod.

[0009] Water-cooling components are used to dissipate heat from the motor body.

[0010] When using the motor body of this technical solution, the water pump is started to guide the coolant from the receiving tank into the inlet pipe, allowing the coolant to enter the cooling pipe and enabling heat exchange between the cooling pipe and the motor body, thus dissipating heat from the motor body. The coolant continues to enter the cooling pipe, and the cooling fan is started, working with the cooling tank to bring air into contact with the cooling pipe. Combined with the heat sink fins, this further dissipates heat from the coolant entering the cooling pipe, allowing the coolant to be reused. The coiled structure design of the cooling pipe increases the cooling capacity within the coil. The internal time of the heat pipes allows for effective heat dissipation of the coolant. When the mounting plate is vibrated and displaced, it causes the rotating block to move, which in turn causes the rotating rod to move, which in turn causes the sliding block to move, compressing the spring. The compression spring cushions the sliding block, thus reducing the vibration experienced by the mounting plate. Simultaneously, the rotating block's displacement causes the moving rod to move, which in turn causes the piston to move, compressing the damping spring. The damping spring further cushions the mounting plate, reducing its sway and preventing any impact on the operation of the internal components of the water tank.

[0011] Preferably, the two sets of rotating blocks are fixedly connected by a connecting plate, and the connecting plate and the mounting plate are fixedly connected.

[0012] Furthermore, the sliding block, sliding rod, and connecting frame are all slidably connected, and compression springs are sleeved at both ends of the sliding rod and on the outside of the two sets of sliding blocks. The compression springs are fixedly connected to the sliding block.

[0013] Furthermore, the moving rod and the sleeve are slidably connected, and a piston is fixedly connected to the inside of the sleeve extending from the moving rod. A damping spring is fixedly connected to the end of the piston away from the moving rod and located inside the sleeve.

[0014] Furthermore, the water-cooling assembly consists of cooling pipes, heat dissipation pipes, multiple sets of heat sinks, and a water inlet pipe. The cooling pipes are fixedly connected to the inside of the motor body, the heat dissipation pipes are fixedly connected to the top of the inside of the water tank, the multiple sets of heat sinks are fixedly connected to the outside of the heat dissipation pipes, and the water inlet pipe is fixedly connected to the bottom of the inside of the water tank.

[0015] Furthermore, the cooling pipe is designed in a spiral structure inside the motor body, and extends to the outside of the motor body to be fixedly connected to the heat dissipation pipe. The heat dissipation pipe is designed in a coil structure inside the water storage tank, and the end of the cooling pipe away from the heat dissipation pipe is connected to the water inlet pipe through a water pump.

[0016] Furthermore, the water tank has an internal receiving tank filled with coolant. The inlet pipe and heat dissipation pipe are connected to the receiving tank. The top of the water tank has multiple heat dissipation slots, and a cooling fan is fixedly connected to the end of the water tank away from the mounting plate.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] The motor body of this utility model, through the design of the connecting components, causes the rotating block to move when the mounting plate is vibrated and displaced, which in turn causes the rotating rod to move, which in turn causes the sliding block to move, compressing the spring. The compression spring buffers the sliding block, thereby reducing the vibration experienced by the mounting plate. At the same time as the rotating block moves, it also causes the moving rod to move, which in turn causes the piston to move, compressing the damping spring. The damping spring further buffers the mounting plate, reducing the amplitude of the mounting plate's sway and preventing it from affecting the operation of the internal components of the water storage tank.

[0020] The motor body of this utility model is designed with a water-cooling component. When the motor body is in operation, the water-cooling component can dissipate heat from the motor body, preventing the motor body from overheating and affecting its use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device of this utility model;

[0022] Figure 2 This is a schematic diagram of the device structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the connecting plate structure of the device of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the device of this utility model;

[0025] Figure 5 This is a schematic diagram of the device structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the connecting plate structure of the device of this utility model;

[0027] The labels in the attached diagram are as follows: 1. Motor body; 2. Fixing plate; 3. Mounting plate; 4. Connecting frame; 5. Connecting assembly; 6. Water tank; 7. Water cooling assembly; 8. Rotating block; 9. Rotating rod; 10. Sliding block; 11. Sliding rod; 12. Moving rod; 13. Sleeve; 14. Connecting plate; 15. Compression spring; 16. Piston; 17. Damping spring; 18. Cooling pipe; 19. Heat dissipation pipe; 20. Heat sink; 21. Water inlet pipe; 22. Heat dissipation groove; 23. Cooling fan. Detailed Implementation

[0028] This specific embodiment is a water-cooled DC brushed geared motor, and its structural schematic diagram is as follows: Figure 1-6 As shown, the DC brushed geared motor includes a motor body 1; a fixing plate 2 is provided on the outside of the motor body 1, and a mounting plate 3 is provided at the end of the fixing plate 2 away from the motor body 1. Two sets of connecting frames 4 are fixedly connected at the end of the fixing plate 2 close to the mounting plate 3. A connecting component 5 is provided inside the connecting frame 4. A water storage tank 6 is provided at the end of the mounting plate 3 away from the fixing plate 2. A water cooling component 7 is provided inside the water storage tank 6.

[0029] The connecting component 5 is used to reduce the amplitude of vibration generated by the water storage tank 6. The connecting component 5 consists of a rotating block 8, two sets of rotating rods 9, two sets of sliding blocks 10, sliding rods 11, moving rods 12 and sleeves 13. The rotating block 8 is fixedly connected to one end of the mounting plate 3 near the fixed plate 2. The two sets of rotating rods 9 are rotatably connected to both ends of the rotating block 8. The sliding block 10 is rotatably connected to the end of the rotating rod 9 away from the rotating block 8. The sliding rod 11 is fixedly connected to the inside of the connecting frame 4. The moving rod 12 is fixedly connected to one end of the rotating block 8 near the sliding rod 11 and located between the two sets of rotating rods 9. The sleeve 13 is fixedly connected to the center of the sliding rod 11.

[0030] The water-cooling component 7 is used to dissipate heat from the motor body 1.

[0031] In this embodiment, two sets of rotating blocks 8 are fixedly connected by a connecting plate 14. The connecting plate 14 is fixedly connected to the mounting plate 3. The sliding block 10 is slidably connected to the sliding rod 11 and the connecting frame 4. Compression springs 15 are sleeved on both ends of the sliding rod 11 and on the outside of the two sets of sliding blocks 10. The compression springs 15 are fixedly connected to the sliding blocks 10. Connecting the two sets of rotating blocks 8 by the connecting plate 14 increases the stability of the connection between the rotating blocks 8 and the mounting plate 3 and increases the contact area. When the mounting plate 3 is vibrated and displaced, it drives the rotating blocks 8 to displace, causing the rotating rod 9 to displace, which in turn drives the sliding blocks 10 to displace, compressing the compression springs 15. The compression springs 15 can buffer the sliding blocks 10, thereby reducing the vibration experienced by the mounting plate 3.

[0032] Secondly, in this embodiment, the moving rod 12 and the sleeve 13 are slidably connected. The moving rod 12 extends into the inside of the sleeve 13 and is fixedly connected to a piston 16. The end of the piston 16 away from the moving rod 12 and located inside the sleeve 13 is fixedly connected to a damping spring 17. When the rotating block 8 is displaced, it drives the moving rod 12 to move, causing the piston 16 to move and compress the damping spring 17. The damping spring 17 can further buffer the mounting plate 3, reduce the amplitude of the shaking of the mounting plate 3, and prevent it from affecting the operation of the internal components of the water storage tank 6.

[0033] Furthermore, in this embodiment, the water-cooling assembly 7 consists of a cooling pipe 18, a heat dissipation pipe 19, multiple sets of heat dissipation fins 20, and a water inlet pipe 21. The cooling pipe 18 is fixedly connected to the inside of the motor body 1, the heat dissipation pipe 19 is fixedly connected to the top of the inside of the water storage tank 6, the multiple sets of heat dissipation fins 20 are all fixedly connected to the outside of the heat dissipation pipe 19, and the water inlet pipe 21 is fixedly connected to the bottom of the inside of the water storage tank 6. When the motor body 1 is operating, the water-cooling assembly 7 can dissipate heat from the motor body 1 to prevent the motor body 1 from overheating during operation and affecting its use.

[0034] Furthermore, in this embodiment, the cooling pipe 18 is designed in a spiral structure inside the motor body 1. The cooling pipe 18 extends to the outside of the motor body 1 and is fixedly connected to the heat dissipation pipe 19. The heat dissipation pipe 19 is designed in a coil structure inside the water storage tank 6. The end of the cooling pipe 18 away from the heat dissipation pipe 19 is connected to the water inlet pipe 21 via a water pump. In this embodiment, the water storage tank 6 has a receiving groove inside, which is filled with coolant. Both the water inlet pipe 21 and the heat dissipation pipe 19 are connected to the receiving groove. Multiple sets of heat dissipation grooves 22 are provided on the top of the water storage tank 6. A cooling fan 23 is fixedly connected to the end of the water storage tank 6 away from the mounting plate 3. The spiral structure design of the cooling pipe 18 increases the contact area with the motor body 1. The water pump is started to introduce the coolant in the container into the inlet pipe 21, so that the coolant is introduced into the cooling pipe 18, allowing the cooling pipe 18 to exchange heat with the motor body 1 and dissipate heat from the motor body 1. The coolant is continuously introduced into the cooling pipe 18, so that the coolant is introduced into the heat dissipation pipe 19. The cooling fan 23 is started, and in conjunction with the heat dissipation tank 22, the air comes into contact with the heat dissipation pipe 19. In conjunction with the heat dissipation fins 20, the coolant introduced into the heat dissipation pipe 19 can be dissipated, so that the coolant can be reused. The coil structure design of the heat dissipation pipe 19 increases the time that the coolant stays in the heat dissipation pipe 19, so that the coolant can be effectively dissipated.

[0035] When using the device of this technical solution, the water pump is started to introduce the coolant inside the receiving tank into the inlet pipe 21, so that the coolant is introduced into the cooling pipe 18, allowing the cooling pipe 18 to exchange heat with the motor body 1 and dissipate heat from the motor body 1. The coolant is continuously introduced into the cooling pipe 18, so that the coolant is introduced into the heat dissipation pipe 19. The cooling fan 23 is started, and in conjunction with the heat dissipation tank 22, the air comes into contact with the heat dissipation pipe 19. In conjunction with the heat dissipation fins 20, the coolant introduced into the heat dissipation pipe 19 can be dissipated, allowing the coolant to be reused. The coiled structure design of the heat dissipation pipe 19 increases the time the coolant stays inside the heat dissipation pipe 19, thus effectively dissipating the coolant. During heat treatment, when the mounting plate 3 is vibrated and displaced, it drives the rotating block 8 to move, causing the rotating rod 9 to move, which in turn drives the sliding block 10 to move, compressing the compression spring 15. The compression spring 15 can buffer the sliding block 10, thereby reducing the vibration of the mounting plate 3. At the same time as the rotating block 8 moves, it drives the moving rod 12 to move, causing the piston 16 to move, compressing the damping spring 17. The damping spring 17 can further buffer the mounting plate 3, reducing the amplitude of the shaking of the mounting plate 3 and preventing it from affecting the operation of the internal components of the water storage tank 6. Compared with the existing DC brushed geared motor, this utility model can improve the overall practicality of the DC brushed geared motor through design.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A water-cooled DC brushed geared motor, comprising a motor body (1); characterized in that, A fixing plate (2) is provided on the outside of the motor body (1). A mounting plate (3) is provided at the end of the fixing plate (2) away from the motor body (1). Two sets of connecting frames (4) are fixedly connected at the end of the fixing plate (2) close to the mounting plate (3). A connecting component (5) is provided inside the connecting frame (4). A water storage tank (6) is provided at the end of the mounting plate (3) away from the fixing plate (2). A water cooling component (7) is provided inside the water storage tank (6). The connecting assembly (5) is used to reduce the amplitude of vibration generated by the water storage tank (6). The connecting assembly (5) consists of a rotating block (8), two sets of rotating rods (9), two sets of sliding blocks (10), a sliding rod (11), a moving rod (12), and a sleeve (13). The rotating block (8) is fixedly connected to one end of the mounting plate (3) near the fixed plate (2). The two sets of rotating rods (9) are respectively rotatably connected to both ends of the rotating block (8). The sliding block (10) is rotatably connected to one end of the rotating rod (9) away from the rotating block (8). The sliding rod (11) is fixedly connected to the inside of the connecting frame (4). The moving rod (12) is fixedly connected to one end of the rotating block (8) near the sliding rod (11) and located between the two sets of rotating rods (9). The sleeve (13) is fixedly connected to the center of the sliding rod (11). The water-cooling component (7) is used to dissipate heat from the motor body (1).

2. The water-cooled DC brushed geared motor according to claim 1, characterized in that, The two sets of rotating blocks (8) are fixedly connected by a connecting plate (14), and the connecting plate (14) is fixedly connected to the mounting plate (3).

3. A water-cooled DC brushed geared motor according to claim 1, characterized in that, The sliding block (10) is slidably connected to the sliding rod (11) and the connecting frame (4). Compression springs (15) are sleeved on both ends of the sliding rod (11) and on the outside of the two sets of sliding blocks (10). The compression springs (15) are fixedly connected to the sliding block (10).

4. A water-cooled DC brushed geared motor according to claim 1, characterized in that, The moving rod (12) and the sleeve (13) are slidably connected. The moving rod (12) extends into the inside of the sleeve (13) and is fixedly connected to a piston (16). The piston (16) is located at the end away from the moving rod (12) and inside the sleeve (13) and is fixedly connected to a damping spring (17).

5. A water-cooled DC brushed geared motor according to claim 1, characterized in that, The water-cooling assembly (7) consists of a cooling pipe (18), a heat dissipation pipe (19), multiple sets of heat dissipation fins (20) and a water inlet pipe (21). The cooling pipe (18) is fixedly connected to the inside of the motor body (1). The heat dissipation pipe (19) is fixedly connected to the top of the inside of the water storage tank (6). The multiple sets of heat dissipation fins (20) are all fixedly connected to the outside of the heat dissipation pipe (19). The water inlet pipe (21) is fixedly connected to the bottom of the inside of the water storage tank (6).

6. A water-cooled DC brushed geared motor according to claim 5, characterized in that, The cooling pipe (18) is designed in a spiral structure inside the motor body (1). The cooling pipe (18) extends to the outside of the motor body (1) and is fixedly connected to the heat dissipation pipe (19). The heat dissipation pipe (19) is designed in a coil structure inside the water storage tank (6). The end of the cooling pipe (18) away from the heat dissipation pipe (19) is connected to the water inlet pipe (21) through a water pump.

7. A water-cooled DC brushed geared motor according to claim 5, characterized in that, The water storage tank (6) has an internal receiving slot filled with coolant. The water inlet pipe (21) and the heat dissipation pipe (19) are both connected to the receiving slot. The top of the water storage tank (6) has multiple heat dissipation slots (22). A cooling fan (23) is fixedly connected to the end of the water storage tank (6) away from the mounting plate (3).

Citation Information

Patent Citations

  • Water-cooled direct-current brush gear motor

    CN220172993U