Motor integrated molding plastic sealing part

By using an integrated molded motor component, the problems of complex assembly and heat dissipation difficulties of traditional molded motors and gearboxes are solved, thereby improving the stability, sealing and heat dissipation efficiency of the equipment, and facilitating maintenance and flexible adjustment of the transmission direction.

CN120785109BActive Publication Date: 2026-05-22SHENGZHOU PENTIUM MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENGZHOU PENTIUM MOTOR CO LTD
Filing Date
2025-07-17
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Traditional encapsulated motors and gearboxes are bolted together, which involves cumbersome assembly steps, takes up a lot of space, and the bolted joints are prone to loosening. Furthermore, heat is difficult to dissipate effectively, affecting the stability of the equipment and the mechanical and insulation properties of the encapsulation material.

Method used

The device employs an integrated molded component for the motor, including the motor body and gearbox body, and is equipped with heat dissipation components and a removable cover. The rotor rotation drives the fan and mating plate to dissipate heat, and the removable locking components and conversion components improve the maintainability of the device and the flexibility of the transmission direction.

Benefits of technology

It improves the operational stability and reliability of the equipment, ensures sealing, effectively prevents dust and moisture intrusion, enhances heat dissipation efficiency, and facilitates maintenance and flexible adjustment of the transmission direction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of motor integrated moulding plastic sealing parts, specifically relates to plastic sealing motor technical field, including motor main body, rotor is rotatably installed in the motor main body inner cavity, the output shaft of the rotor is equipped with a gear and engaging component, gear box is integrally formed on the motor main body, the gear box one side is equipped with detachable box cover, the box cover is equipped with heat dissipation component, the heat dissipation component includes installation ring plate, the inner surface of the installation ring plate is fixed with air outlet component, the outer surface of the air outlet component is equipped with cooperation component, the air outlet component one side is slid with sealing cover, the sealing cover one side is fixed with multiple annular arrays of cooperation column.The application discloses a kind of motor integrated moulding plastic sealing parts, through the air outlet component of being set, not only can the gear box inner cavity be heat dissipated, but also can guarantee the sealing property of device, carry out double sealing, avoid the invasion of dust and moisture and other external substances.
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Description

Technical Field

[0001] This invention relates to the field of encapsulated motor technology, and more particularly to an integrally molded encapsulated motor component. Background Technology

[0002] In the washing machine and ice maker industry, encapsulated motors play a crucial role. In washing machines, they power the rotation of the drum or pulsator, enabling different functions such as washing, rinsing, and spin-drying clothes through precise control of speed and direction. In ice makers, encapsulated motors drive the ice-making components, completing the processes of water circulation, cooling, and ice formation and release.

[0003] Traditional encapsulated motors and gearboxes are bolted together. During assembly, this method requires connecting multiple components sequentially, a cumbersome and complex process. In terms of space, the bolted structure requires additional connecting parts and installation space, resulting in a larger overall size. From the perspective of connection stability, during long-term use, factors such as vibration and temperature changes can easily cause the bolted joints to loosen, affecting the coordinated operation of the motor and gearbox and reducing the stability and reliability of the equipment. In addition, the thermal conductivity of encapsulated materials is generally lower than that of metal materials, which may lead to the ineffective dissipation of heat generated by the motor and gearbox during operation. Prolonged high-temperature operation may accelerate the aging of the encapsulated materials, reducing their mechanical and insulation properties. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of existing encapsulated motors and gearboxes using bolted connections, which involve cumbersome assembly steps, large space requirements, easy loosening at the bolted joints, and aging of the encapsulating material due to the difficulty in effectively dissipating the heat generated by the motor and gearbox during operation, thus reducing its mechanical and insulation properties. Therefore, this invention proposes an integrated molded encapsulated motor component.

[0005] To achieve the above objectives, the present invention employs the following technology: an integrally molded encapsulated component for a motor.

[0006] The device includes a motor body, a rotor rotatably mounted inside the motor body, a first gear and a engaging component on the output shaft of the rotor, a gearbox integrally formed therewith on the motor body, a detachable cover on one side of the gearbox, and a heat dissipation component on the cover.

[0007] The heat dissipation component includes a mounting ring plate, an air outlet component is fixed on the inner surface of the mounting ring plate, a mating component is provided on the outer surface of the air outlet component, a sealing cover is slidably provided on one side of the air outlet component, and a plurality of mating columns in an annular array are fixed on one side of the sealing cover.

[0008] The air outlet component includes a fixed pipe, a filter plate is fixed to one side of the inner cavity of the fixed pipe, a connecting shaft is rotatably connected to one side of the filter plate, and a mating plate is fixed to the outer surface of the connecting shaft;

[0009] The rotor is rotated to match the rotation of the mating plate with the filter plate, and the mating plate and the filter plate overlap intermittently.

[0010] As a further description of the integrated molded plastic-encapsulated component for an electric motor according to the above technology:

[0011] The filter plate has multiple annular array ventilation holes on one side, and the mating plate has a flow hole that matches the ventilation holes on one side. The ventilation holes and the flow hole overlap intermittently, and a fan is fixed on the outer surface of the connecting shaft.

[0012] As a further description of the integrated molded plastic-encapsulated component for an electric motor according to the above technology:

[0013] A heat dissipation fin is fixed to one side of the outer surface of the fixed tube, and a sealing cover is fixed to the outer surface of the heat dissipation fin. Multiple heat dissipation holes are opened on the outer surface of the sealing cover. The mating component also pushes the mating column so that the sealing cover and the sealing cover overlap intermittently.

[0014] As a further description of the integrated molded plastic-encapsulated component for an electric motor according to the above technology:

[0015] The mating component includes a rotating ring rotatably connected to the fixed tube. A gear ring is fixed on one side of the rotating ring, and a drive gear is rotatably mounted on the mounting ring plate inside the gear ring. The drive gear and the connecting shaft are connected by a synchronous belt. Multiple ring frames adapted to the mating column are fixed on one side of the rotating ring.

[0016] As a further description of the integrated molded plastic-encapsulated component for an electric motor according to the above technology:

[0017] The gearbox cavity is provided with a transmission component that meshes with the first gear. The gearbox cavity is rotatably mounted with a first helical gear that meshes with the transmission component. A bevel gear is coaxially fixed to the lower side of the first helical gear. The gearbox cavity is provided with a conversion component that matches the bevel gear. A plurality of annular array insertion holes are opened on the side wall of the connecting hole that matches the motor body on one side of the gearbox cavity.

[0018] As a further description of the integrated molded plastic-encapsulated component for an electric motor according to the above technology:

[0019] The conversion component includes a positioning rod rotatably connected to the inner cavity side wall of the gearbox and a shaft locking device sleeved on its surface. A limit rod is fixed on the upper side of the shaft locking device, and an L-shaped plate is fixedly connected to the positioning rod. A limit groove adapted to the limit rod is opened on the horizontal part of the L-shaped plate.

[0020] As a further description of the integrated molded plastic-encapsulated component for an electric motor according to the above technology:

[0021] The vertical part of the limiting groove is rotatably connected to a round tube, and a second bevel gear that meshes with a first bevel gear is fixedly installed on the outer surface of the round tube. A detachable drive shaft is installed in the inner cavity of the round tube.

[0022] As a further description of the integrated molded plastic-encapsulated component for an electric motor according to the above technology:

[0023] The engaging component includes a circular groove plate connected to the rotor output shaft via a bearing. Multiple L-shaped rods that are adapted to the insertion holes slide inside the circular groove plate. A rotating plate is rotatably connected to the circular groove plate via a torsion spring. Multiple arc-shaped grooves that are adapted to the L-shaped rods are opened on one side of the rotating plate. Multiple positioning posts in a ring array are fixed on one side of the circular groove plate.

[0024] In summary, due to the adoption of the above-mentioned technology in the integrated molding and encapsulation of a motor component, the beneficial effects of this invention are:

[0025] 1. The designed air outlet component not only dissipates heat from the gearbox cavity but also ensures the device's airtightness, providing a double seal to prevent the intrusion of external substances such as dust and moisture. The fan's rotation directs heat towards the fixed tube cavity. The intermittent overlap of the flow holes on the mating plate and the ventilation holes on the filter plate transfers heat from the fixed tube cavity to the sealed cover cavity, ensuring the hot air flows along the direction of the heat dissipation fins towards the ventilation holes, thus expelling the hot air. The intermittent overlap of the flow holes on the mating plate and the ventilation holes on the filter plate also prevents prolonged opening of the flow holes and ventilation holes, which could lead to moisture and dust entering the gearbox cavity. When the ventilation holes on the filter plate and the flow holes on the mating plate overlap, it constitutes the first layer of sealing. At this point, the annular frame does not lift the mating column, allowing the sealing cover to fit over the sealed cover and block the heat dissipation holes, forming the second layer of sealing.

[0026] 2. This device is easy to maintain due to its detachable cover and detachable locking components. The detachable cover allows for the maintenance of components inside the gearbox, while the locking components allow for the maintenance of components inside the motor body.

[0027] 3. This device, through the interaction between the conversion component and bevel gear one, can quickly change the direction of the transmission shaft, thereby changing the transmission direction of the device and improving its applicability. By rotating the L-shaped plate, bevel gear two makes circular motion around bevel gear one, and the limiting rod restricts the rotation angle of the L-shaped plate, making the adjustment angle more accurate.

[0028] 4. By integrally molding the motor body and gearbox body, the problems of cumbersome assembly steps, large space occupation, and easy loosening at the bolted joints of existing molded motors and gearboxes can be solved. This improves the stability and reliability of equipment operation. At the same time, the molding material has good sealing performance, which can effectively prevent the intrusion of external substances such as dust and moisture, and protect the electrical components and mechanical parts inside the motor body and gearbox. Attached Figure Description

[0029] Figure 1 A schematic diagram of the overall structure of the device according to an embodiment of the present invention is shown;

[0030] Figure 2 A schematic diagram of the internal structure of a gearbox provided according to an embodiment of the present invention is shown;

[0031] Figure 3 A schematic diagram of the mounting structure on the motor body provided according to an embodiment of the present invention is shown;

[0032] Figure 4 A schematic diagram of an integrally formed motor body and gearbox body provided according to an embodiment of the present invention is shown;

[0033] Figure 5 A schematic diagram of the engaging component structure provided according to an embodiment of the present invention is shown;

[0034] Figure 6 A cross-sectional view of the engaging component structure provided according to an embodiment of the present invention is shown;

[0035] Figure 7 A schematic diagram of the conversion component structure provided according to an embodiment of the present invention is shown;

[0036] Figure 8 A schematic diagram of the conversion component and bevel gear provided according to an embodiment of the present invention is shown. Figure 1 ;

[0037] Figure 9 A schematic diagram of the conversion component and bevel gear provided according to an embodiment of the present invention is shown. Figure 2 ;

[0038] Figure 10 A schematic diagram of a heat dissipation component structure provided according to an embodiment of the present invention is shown;

[0039] Figure 11 A schematic diagram of the mating component structure provided according to an embodiment of the present invention is shown. Figure 1 ;

[0040] Figure 12 A schematic diagram of the mating component structure provided according to an embodiment of the present invention is shown. Figure 2 ;

[0041] Figure 13 An explosion of the air outlet component structure provided according to an embodiment of the present invention is shown. Figure 1 ;

[0042] Figure 14 An explosion of the air outlet component structure provided according to an embodiment of the present invention is shown. Figure 2 ;

[0043] Figure 15 A schematic diagram showing the mating state of the air outlet component, mating component, sealing cover, and mating column provided according to an embodiment of the present invention is shown.

[0044] Legend:

[0045] 10. Motor body; 11. Rotor; 12. Gear No. 1;

[0046] 13. Engaging component; 131. Circular groove plate; 132. Rotating plate; 133. Arc groove; 134. L-shaped rod; 135. Positioning post;

[0047] 20. Gearbox housing; 21. Transmission assembly; 22. First helical gear; 23. First bevel gear; 24. Insertion hole;

[0048] 30. Box lid;

[0049] 40. Heat dissipation component; 41. Mounting ring plate; 42. Air outlet component; 421. Fixing pipe; 422. Connecting shaft; 423. Filter plate; 424. Mating plate; 425. Fan; 426. Heat dissipation fins; 427. Heat dissipation holes; 428. Sealing cover; 43. Mating component; 431. Gear ring; 432. Rotating ring; 433. Ring frame; 434. Drive gear; 44. Sealing cover; 45. Mating post;

[0050] 50. Conversion component; 51. Shaft locking device; 52. Positioning rod; 53. Round tube; 54. Second bevel gear; 55. Drive shaft; 56. L-shaped plate; 57. Limiting groove; 58. Limiting rod. Detailed Implementation

[0051] The following will describe, with reference to the accompanying drawings of the embodiments of the present invention, a clearly and completely illustrated integrated molded component for an electric motor. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Example 1

[0052] like Figures 1-3As shown, an integrated molded plastic encapsulated component for an electric motor includes a motor body 10, which includes a housing and a stator. A rotor 11 is rotatably mounted inside the motor body 10. A first gear 12 and a locking component 13 are provided on the output shaft of the rotor 11. The first gear 12 is fixedly connected to the output shaft of the rotor 11, and a circular hole is provided on the first gear 12 for engaging with the locking component 13. The locking component 13 is used to install the rotor 11.

[0053] Next, as Figure 4 As shown, a gearbox 20 integrally formed with the motor body 10 is provided on the motor body 10. The gearbox 20 is integrally molded with the motor body 10, which solves the problems of cumbersome assembly steps, large space occupation, and easy loosening at the bolted joints of existing molded motors and gearboxes. This improves the stability and reliability of the equipment operation. A terminal block for connecting to the power supply of the motor body 10 is installed on the gearbox 20.

[0054] Among them, such as Figure 2 As shown, in order to enable the gearbox to drive, a transmission assembly 21 is provided. The gearbox body 20 has a transmission assembly 21 that meshes with the first gear 12. The transmission assembly 21 includes a gear one that meshes with the first gear 12. The gear one is rotatably mounted on the side wall of the gearbox body 20. A coaxial bevel gear set is mounted on the gear one. A helical gear is coaxially fixed on the upper side of the horizontal bevel gear. The transmission assembly 21 is used for transmission in the gearbox.

[0055] Next, a first helical gear 22 that meshes with the transmission assembly 21 is rotatably installed inside the gearbox 20. The first helical gear 22 meshes with the helical gear in the transmission assembly 21. A bevel gear 23 is coaxially fixed to the lower side of the first helical gear 22. A conversion component 50 adapted to the bevel gear 23 is provided inside the gearbox 20. The conversion component 50 can rotate inside the gearbox 20. Some of its components are fixed inside the gearbox 20. A plurality of annular array insertion holes 24 are opened on the side wall of the connecting hole on one side of the gearbox 20 that is adapted to the motor body 10. The connection between the gearbox 20 and the motor body 10 is used to install the rotor 11. The rotor 11 is detachable, which facilitates the later maintenance of the motor.

[0056] In addition, such as Figure 1 As shown, a detachable cover 30 is installed on one side of the gearbox 20 to facilitate the inspection and maintenance of the inner cavity of the gearbox 20. A heat dissipation component 40 is provided on the cover 30 and is fixed on the cover 30 to dissipate heat from the gearbox 20 and the inner cavity of the cover 30.

[0057] Furthermore, such as Figure 5 and Figure 6As shown, the engaging component 13 includes a circular groove plate 131 connected to the output shaft of the rotor 11 via a bearing. Multiple L-shaped rods 134, adapted to the insertion holes 24, slide within the cavity of the circular groove plate 131. These L-shaped rods 134 are arranged in a ring array corresponding to the insertion holes 24. The horizontal portions of the L-shaped rods 134 penetrate the sidewall of the cavity of the circular groove plate 131 and can be inserted into the cavity of the insertion holes 24. A rotating plate 132 is rotatably connected to the cavity of the circular groove plate 131 via a torsion spring. The rotating plate 132 and the circular groove plate 131 are concentric. The rotating plate 132 is rotatably mounted on the outside of the bearing of the circular groove plate 131 via a torsion spring and a ring collar, allowing it to automatically return to its original position after rotation. A push block is fixed on the rotating plate 132. By pushing the push block through the circular hole on the first gear 12, the rotating plate 132 can be rotated.

[0058] In order to move the L-shaped rod 134, a plurality of arc-shaped grooves 133 adapted to the L-shaped rod 134 are provided on one side of the rotating plate 132. The vertical part of the L-shaped rod 134 is located in the inner cavity of the arc-shaped groove 133. When the rotating plate 132 rotates, the L-shaped rod 134 can be moved through the arc-shaped grooves 133. A plurality of positioning posts 135 in an annular array are fixed on one side of the circular groove plate 131. The positioning posts 135 are used for positioning and fixing. The motor body 10 has grooves adapted to the positioning posts 135. The positioning posts 135 are inserted into the grooves on the motor body 10, which can fix the circular groove plate 131. Then the rotating plate 132 is rotated.

[0059] Gearboxes sometimes need to switch between different gear specifications to meet different working requirements. If the gears cannot mesh immediately during the switching process, it may cause jamming or other unexpected situations.

[0060] To facilitate switching the transmission direction of the gearbox, this device is equipped with a conversion component 50, such as... Figure 7 and Figure 8 As shown, the conversion component 50 includes a positioning rod 52 rotatably connected to the inner cavity side wall of the gearbox 20 and a shaft locking device 51 sleeved on its surface. The shaft locking device 51 is fixed to the inner cavity side wall of the gearbox 20 and is used to lock the positioning rod 52, so that the positioning rod 52 is fixed. The center of the cross section of the positioning rod 52 is on the same straight line as the center of the cross section of the upper shaft of the bevel gear 23. A limit rod 58 is fixed on the upper side of the shaft locking device 51. An L-shaped plate 56 is fixedly connected to the positioning rod 52, so that the L-shaped plate 56 and the positioning rod 52 rotate synchronously. A limit groove 57 adapted to the limit rod 58 is opened on the horizontal part of the L-shaped plate 56. The limit rod 58 and the limit groove 57 cooperate to allow the L-shaped plate 56 to rotate only ninety degrees, which is used to switch directions.

[0061] Next, a circular tube 53 is rotatably connected to the vertical part of the limiting groove 57. A second bevel gear 54 that meshes with the first bevel gear 23 is fixedly installed on the outer surface of the circular tube 53. The second bevel gear 54 and the circular tube 53 have the same structure. Rotating the L-shaped plate 56 causes the second bevel gear 54 to rotate around the first bevel gear 23. A detachable drive shaft 55 is installed in the inner cavity of the circular tube 53. Rotating the L-shaped plate 56 changes the orientation of the circular tube 53. By disassembling and adjusting the position of the drive shaft 55, the transmission direction of the drive shaft 55 is changed, thus improving the applicability of the device.

[0062] Among them, the shaft locking device 51 is existing technology and can be used to lock shaft parts at any position of axial movement, ensuring that shaft parts are firmly locked in the axial or rotational direction and preventing loosening due to vibration or external force. Example 2

[0063] This embodiment further defines the heat dissipation component 40 based on Embodiment 1, in order to achieve the purpose of heat dissipation of the inner cavity of the gearbox 20.

[0064] Specifically, such as Figure 10 and Figure 11 As shown, the heat dissipation component 40 includes a mounting ring plate 41 fixedly connected to the cover 30. An air outlet component 42 adapted to the rotor 11 is fixed on the inner surface of the mounting ring plate 41. A pair of components in the air outlet component 42 can be inserted into the air outlet component 42, so that the rotor 11 drives the air outlet component 42 to run. A mating component 43 is provided on the outer surface of the air outlet component 42. The mating component 43 is rotatably connected to the air outlet component 42. A sealing cover 44 is slidably connected to one side of the air outlet component 42. The sealing cover 44 is used to seal the air outlet component 42 to prevent dust and moisture from entering the inner cavity of the cover 30 when it is not in use. A plurality of annular array mating posts 45 are fixed on one side of the sealing cover 44. A rolling ball is embedded at one end of the mating post 45 to reduce the friction between the mating post 45 and the mating component 43.

[0065] Next, as Figure 13 and Figure 14 As shown, the air outlet component 42 includes a fixed pipe 421 fixedly connected to the mounting ring plate 41. A filter plate 423 is fixed on one side of the inner cavity of the fixed pipe 421. Multiple annular array ventilation holes are opened on one side of the filter plate 423. A filter screen is fixed in the inner cavity of the ventilation holes to prevent dust from entering during heat dissipation. A connecting shaft 422 is rotatably connected to one side of the filter plate 423. The connecting shaft 422 is inserted into the output shaft of the rotor 11. When the rotor 11 rotates, it can rotate the connecting shaft 422. A mating plate 424 adapted to the filter plate 423 is fixed on the outer surface of the connecting shaft 422. The mating plate 424 and the filter plate 423 are in close contact. A flow hole adapted to the ventilation holes is opened on one side of the mating plate 424. A fan 425 is fixed on the outer surface of the connecting shaft 422. The rotation of the fan 425 can transport hot air to the outside of the box cover 30.

[0066] When in use, the angle of rotation of the mating plate 424 can connect the flow hole and the ventilation hole, allowing hot air to flow out from the inner cavity of the fixed pipe 421. Then, by rotating a certain angle, the flow hole and the ventilation hole are misaligned, and the hot air cannot flow out from the inner cavity of the fixed pipe 421. The mating plate 424 and the filter plate 423 work together to allow the hot air to be discharged intermittently from the inner cavity of the fixed pipe 421, preventing the fixed pipe 421 from being open for a long time and allowing dust to enter the inner cavity of the cover 30. At the same time, it can also ensure its sealing when it is not in use.

[0067] In addition, a heat dissipation fin 426 is fixed on one side of the outer surface of the fixed tube 421. The heat dissipation fin 426 can absorb the heat in the inner cavity of the cover 30. The heat absorbed by the heat dissipation fin 426 is carried away by the air coming out of the inner cavity of the fixed tube 421, so that the heat can be quickly dissipated from the heat dissipation fin 426, further improving the heat dissipation efficiency of the device. A sealing cover 428 that matches the sealing cover 44 is fixed on the outer surface of the heat dissipation fin 426. Multiple heat dissipation holes 427 are opened on the outer surface of the sealing cover 428. The sealing cover 428 is fitted on the heat dissipation fin 426. The air flowing out of the inner cavity of the fixed tube 421 will flow in the direction set by the heat dissipation fin 426 and then be discharged from the heat dissipation holes 427, so that the heat on the heat dissipation fin 426 is quickly carried away, further improving the heat dissipation effect of the device.

[0068] The closing cover 428 and the sealing cover 44 are connected by a spring, so that the moving sealing cover 44 can automatically return to its original position under the action of the spring.

[0069] Furthermore, such as Figure 11 and Figure 12 As shown, the mating component 43 includes a rotating ring 432 rotatably connected to the fixed tube 421. A gear ring 431 is fixed on one side of the rotating ring 432. A drive gear 434 is rotatably mounted on the mounting ring plate 41 inside the gear ring 431. The drive gear 434 is mounted on the mounting ring plate 41 via a mounting shaft. The mounting shaft of the drive gear 434 is rotatably mounted on the mounting ring plate 41. The drive gear 434 is fixedly connected to the mounting shaft. The drive gear 434 and the connecting shaft 422 are connected by a synchronous belt. The mounting of the drive gear 434... The shaft and the connecting shaft 422 are connected by a synchronous belt, so that the rotation of the connecting shaft 422 can drive the drive gear 434 to rotate synchronously. A plurality of ring frames 433 adapted to the mating column 45 are fixed on one side of the rotating ring 432. The shape of the ring frame 433 is adapted to the mating column 45. The rotation of the rotating ring 432 drives the ring frame 433 to rotate, so that the ring frame 433 pushes the mating column 45, causing the sealing cover 44 and the closing cover 428 to slide, exposing the heat dissipation hole 427, so that heat can be discharged from the heat dissipation hole 427.

[0070] Because of the connection between the drive gear 434 and the connecting shaft 422, the angle and range of rotation of the mating plate 424 and the rotating ring 432 are synchronized. Thus, when the mating plate 424 and the filter plate 423 are in communication, the ring frame 433 also lifts the mating column 45, so that the sealing cover 44 and the closing cover 428 are far apart, and the heat dissipation hole 427 is open, so that heat can be discharged.

[0071] The rotor 11 rotates, causing the mating plate 424 to rotate and match the filter plate 423, intermittently coinciding with the ventilation holes and flow holes, allowing hot air to flow out intermittently. At the same time, the ring frame 433 pushes the mating column 45, causing the sealing cover 44 and the closing cover 428 to intermittently coincide. The intermittent overlap between the filter plate 423 and the mating plate 424 can prevent the flow holes and ventilation holes from being open for a long time, which would cause dust and moisture to enter.

[0072] It should be noted that the motor body 10, rotor 11, transmission assembly 21, fan 425, heat sink fins 426 and shaft locking device 51 in this invention are all existing technologies, and their installation methods and control methods are also conventional designs, which will not be described in detail in this invention.

[0073] Working principle of the invention: This device is an integrally molded plastic-encapsulated component for an electric motor, such as... Figure 4 As shown, by integrally molding the motor body 10 and the gearbox 20, the problems of cumbersome assembly steps, large space occupation, and easy loosening at the bolted joints of existing molded motors and gearboxes can be solved. This improves the stability and reliability of equipment operation. At the same time, the molding material has good sealing performance, which can effectively prevent the intrusion of external substances such as dust and moisture, and protect the electrical components and mechanical parts inside the motor body 10 and gearbox 20.

[0074] The air outlet component 42 not only dissipates heat from the inner cavity of the gearbox 20 but also ensures the device's airtightness, preventing the intrusion of external substances such as dust and moisture. The rotation of the rotor 11 drives the connecting shaft 422, which in turn rotates the mating plate 424 and the fan 425. The fan 425's rotation causes heat to flow into the inner cavity of the fixed tube 421. The intermittent overlap of the flow holes on the mating plate 424 and the ventilation holes on the filter plate 423 allows heat to be transferred from the inner cavity of the fixed tube 421 to the inner cavity of the sealed cover 428. Figure 15 As shown, due to the setting of the closed cover 428, the hot air flows in the direction of the heat dissipation fins 426 toward the heat dissipation holes 427, and the hot air is discharged. At the same time, the intermittent overlap of the flow holes on the plate 424 and the ventilation holes on the filter plate 423 can also prevent the flow holes and ventilation holes from being open for a long time, which would cause moisture and dust to enter the inner cavity of the gearbox 20.

[0075] In addition, the device needs to be sealed when it is not in use. When the flow hole on the mating plate 424 and the ventilation hole on the filter plate 423 do not coincide, the mating plate 424 blocks the ventilation hole on the filter plate 423, and the device is sealed. At the same time, since the rotating ring 432 and the mating plate 424 rotate synchronously, the fit between the multiple ring frames 433 and the mating column 45 is synchronized with the fit between the filter plate 423 and the mating plate 424. That is, when the ventilation hole of the filter plate 423 and the flow hole of the mating plate 424 coincide, the ring frame 433 lifts the mating column 45, so that the sealing cover 44 no longer blocks the heat dissipation hole 427, allowing heat to be discharged. When the ventilation hole of the filter plate 423 and the flow hole of the mating plate 424 do not coincide, this is the first sealing. At this time, the ring frame 433 does not lift the mating column 45, so that the sealing cover 44 is placed on the sealing cover 428, blocking the heat dissipation hole 427. This is the second sealing, preventing external impurities such as air and moisture from entering the inner cavity of the gearbox 20.

[0076] The removable cover 30 and the removable engaging component 13 facilitate maintenance of the device. The removable cover 30 allows for maintenance of components within the gearbox 20, while the engaging component 13 allows for maintenance of components within the motor body 10. When the engaging component 13 is installed, the positioning pin 135 aligns with the groove on the motor body 10 housing, preventing the circular groove plate 131 from rotating. Then, rotating the rotating plate 132, under the action of multiple arc-shaped grooves 133, allows multiple... The L-shaped rod 134 retracts, and the circular groove plate 131 is placed into the inner cavity of the connecting hole on one side of the gearbox body 20. Then, under the action of the torsion spring, the rotating plate 132 is restored, and the horizontal parts of the multiple L-shaped rods 134 are inserted into the inner cavities of the multiple insertion holes 24, fixing the locking component 13 onto the gearbox body 20. When disassembling, the rotating plate 132 is rotated, and the multiple L-shaped rods 134 are retracted through the multiple arc grooves 133. The locking component 13 and the rotor 11 can be taken out together. Disassembly and installation are very convenient, which facilitates the maintenance of the device.

[0077] By cooperating with the conversion component 50 and the bevel gear 23, the direction of the drive shaft 55 can be quickly changed, thereby altering the transmission direction of the device and improving its applicability; for example Figure 8 and Figure 9As shown, by rotating the L-shaped plate 56, the second bevel gear 54 moves in a circular motion around the first bevel gear 23. The limiting rod 58 restricts the rotation angle of the L-shaped plate 56, allowing it to rotate only 90 degrees. Then, the limiting rod 58 locks the positioning rod 52. Next, the detachable drive shaft 55 is installed in a suitable position to complete the reversal of the drive shaft 55, enabling it to switch 90-degree rotations for transmission. Since the axis of the first bevel gear 23 and the axis of the positioning rod 52 are on the same straight line, no friction is generated when the second bevel gear 54 rotates around the first bevel gear 23, reducing the risk of jamming or other unexpected situations between the first bevel gear 23 and the second bevel gear 54.

[0078] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the present invention's integrated molded plastic encapsulation component for motor and its inventive concept, should be covered within the scope of protection of the present invention.

Claims

1. A one-piece molded plastic-encapsulated component for a motor, comprising a motor body (10), characterized in that: The motor body (10) has a rotor (11) rotatably mounted inside its cavity. The output shaft of the rotor (11) is provided with a first gear (12) and a locking component (13). The motor body (10) is provided with a gearbox (20) integrally formed therewith. A detachable cover (30) is installed on one side of the gearbox (20). A heat dissipation component (40) is provided on the cover (30). The heat dissipation component (40) includes a mounting ring plate (41), an air outlet component (42) is fixed on the inner surface of the mounting ring plate (41), a mating component (43) is provided on the outer surface of the air outlet component (42), a sealing cover (44) is slidably provided on one side of the air outlet component (42), and a plurality of mating columns (45) in an annular array are fixed on one side of the sealing cover (44). The air outlet component (42) includes a fixed pipe (421), a filter plate (423) is fixed on one side of the inner cavity of the fixed pipe (421), a connecting shaft (422) is rotatably connected to one side of the filter plate (423), and a mating plate (424) is fixed on the outer surface of the connecting shaft (422). By rotating the rotor (11), the mating plate (424) rotates to match the filter plate (423); The filter plate (423) has a plurality of annular array ventilation holes on one side, and the mating plate (424) has a flow hole that matches the ventilation holes on one side. The ventilation holes and the flow hole overlap intermittently, and a fan (425) is fixed on the outer surface of the connecting shaft (422). A heat dissipation fin (426) is fixed on one side of the outer surface of the fixed tube (421). A sealing cover (428) is fixed on the outer surface of the heat dissipation fin (426). A plurality of heat dissipation holes (427) are opened on the outer surface of the sealing cover (428). The mating component (43) also pushes the mating column (45) so that the sealing cover (44) and the sealing cover (428) overlap intermittently. The mating component (43) includes a rotating ring (432) rotatably connected to the fixed tube (421). A gear ring (431) is fixed on one side of the rotating ring (432). A drive gear (434) is rotatably mounted on the mounting ring plate (41) inside the gear ring (431). The drive gear (434) and the connecting shaft (422) are connected by a synchronous belt. A plurality of annular frames (433) adapted to the mating column (45) are fixed on one side of the rotating ring (432). The mating between the plurality of annular frames (433) and the mating column (45) is consistent with the filter plate (423). The engagement between the filter plate (423) and the mating plate (424) is synchronized. When the ventilation hole of the filter plate (423) and the flow hole of the mating plate (424) coincide, the ring frame (433) will lift the mating column (45) so that the sealing cover (44) will no longer block the heat dissipation hole (427) and allow heat to be discharged. When the ventilation hole of the filter plate (423) and the flow hole of the mating plate (424) do not coincide, this is the first sealing. At this time, the ring frame (433) will not lift the mating column (45) so that the sealing cover (44) is placed on the sealing cover (428) and the heat dissipation hole (427) is blocked. This is the second sealing.

2. The integrally molded encapsulated component for a motor according to claim 1, characterized in that, The gearbox (20) has a transmission assembly (21) that cooperates with the first gear (12) inside the cavity. The gearbox (20) has a first helical gear (22) that cooperates with the transmission assembly (21) rotatably mounted inside the cavity. A bevel gear (23) is coaxially fixed on the lower side of the first helical gear (22). The gearbox (20) has a conversion component (50) that is adapted to the bevel gear (23) inside the cavity. The gearbox (20) has a connecting hole sidewall that is adapted to the motor body (10) on one side of the cavity and has multiple annular array of insertion holes (24).

3. The integrally molded encapsulated component for a motor according to claim 2, characterized in that, The conversion component (50) includes a positioning rod (52) rotatably connected to the inner cavity side wall of the gearbox body (20) and a shaft locking device (51) sleeved on its surface. A limit rod (58) is fixed on the upper side of the shaft locking device (51). An L-shaped plate (56) is fixedly connected to the positioning rod (52). A limit groove (57) adapted to the limit rod (58) is opened on the horizontal part of the L-shaped plate (56).

4. The integrally molded encapsulated component for a motor according to claim 3, characterized in that, The vertical part of the limiting groove (57) is rotatably connected to a round tube (53), and a bevel gear (54) that meshes with bevel gear one (23) is fixedly installed on the outer surface of the round tube (53). A detachable drive shaft (55) is installed in the inner cavity of the round tube (53).

5. The integrally molded encapsulated component for a motor according to claim 1, characterized in that, The engaging component (13) includes a circular groove plate (131) connected to the output shaft of the rotor (11) via a bearing. The inner cavity of the circular groove plate (131) has multiple L-shaped rods (134) adapted to the insertion hole (24). The inner cavity of the circular groove plate (131) is rotatably connected to a rotating plate (132) via a torsion spring. The rotating plate (132) has multiple arc-shaped grooves (133) adapted to the L-shaped rods (134) on one side. The circular groove plate (131) has multiple positioning posts (135) in a ring array fixed on one side.