High-efficiency heat dissipation sealed motor

Abstract

The invention relates to an efficient heat dissipation sealed motor, and relates to the technical field of motors. The transformer comprises a box body, a cover plate, a rotating shaft, a framework and an iron core, the cover plate is located at the end of the box body and used for sealing and covering the box body, one end of the rotating shaft is inserted into the box body, the rotating shaft can rotate on the box body, the framework is arranged on the rotating shaft in a sleeving mode and tightly attached to the inner wall of the box body, the iron core is arranged on the framework, and an enameled wire is wound on the iron core. The varnished wire abuts against the inner wall of the box body, and a paint dripping opening is formed in the framework. The heat dissipation device has the effect of being high in heat dissipation efficiency.

Description

Technical Field

[0001] This application relates to the field of electric motors, and more particularly to a sealed electric motor with high-efficiency heat dissipation. Background Technology

[0002] In the field of motor technology, electric motors, as crucial devices for converting electrical energy into mechanical energy, are widely used in numerous fields such as industrial production, transportation, and household appliances. With continuous technological advancements, the performance requirements for motors across various industries are constantly increasing, making efficient operation and stability key indicators. High-efficiency motors can reduce energy consumption, improve production efficiency, and lower equipment maintenance costs, thus playing a vital role in economic development and environmental protection. Especially in specialized fields with extremely high motor performance requirements, such as aerospace and precision instrument manufacturing, the heat dissipation and sealing performance of the motor directly affects the reliability and safety of the entire system.

[0003] The core of a heat dissipation solution for sealed and waterproof motors is to efficiently transfer internal heat to the external environment without damaging the outer casing. Current sealed motors rely on the internal stator to transfer heat to the outer casing, which then dissipates it into the air. This process requires heat to fill the interior of the casing before it can be transferred to the outer casing for dissipation, resulting in low heat dissipation efficiency, which needs improvement. Summary of the Invention

[0004] To address the issue of low heat dissipation efficiency, this application provides a sealed motor with high-efficiency heat dissipation.

[0005] The high-efficiency heat dissipation sealed motor provided in this application adopts the following technical solution: A high-efficiency heat dissipation sealed motor includes a housing, a cover plate, a rotating shaft, a frame, and an iron core. The cover plate is located at the end of the housing and is used to seal the housing. One end of the rotating shaft is inserted into the housing and can rotate on the housing. The frame is sleeved on the rotating shaft and is in close contact with the inner wall of the housing. The iron core is disposed on the frame and has enameled wire wound on it. The enameled wire abuts against the inner wall of the housing. The frame has a drip nozzle.

[0006] By adopting the above technical solution, utilizing the frame to be tightly attached to the inner wall of the enclosure, and the enameled wire to abut against the inner wall of the enclosure, the heat generated inside the motor can be quickly transferred to the enclosure, improving heat dissipation efficiency. Furthermore, injecting insulating varnish through the drip nozzle enhances the motor's insulation and sealing performance.

[0007] Optionally, a ejector pin is provided on the end wall of the box, the ejector pin is located inside the box, and the ejector pin is directly opposite the paint drip nozzle.

[0008] By adopting the above technical solution, the ejector pin has a raised structure, which makes it easier to demold when preparing the box. At the same time, the ejector pin and the paint dripping nozzle are in the same position. When the insulating paint enters the box through the paint dripping nozzle, the raised ejector pin occupies part of the space inside the box, thereby reducing the amount of insulating paint used.

[0009] Optionally, the inner wall of the housing is provided with spiral grooves.

[0010] By adopting the above technical solution, the spiral groove increases the contact area between the box and the frame, and can also store some glue, so that the frame and the inner wall of the box are bonded more tightly.

[0011] Optionally, a heat dissipation assembly is provided on the outer side wall of the housing. The heat dissipation assembly includes two mounting rings and several connecting plates. The mounting rings are coaxially sleeved on the housing. The connecting plates are located between the two connecting plates. One end of the connecting plate is connected to one of the mounting rings, and the other end is connected to the other mounting ring. The several connecting plates are arranged at intervals along the circumference of the mounting rings.

[0012] By adopting the above technical solution, the heat inside the box is transferred to the box body, and then to the mounting ring and several connecting plates, thereby increasing the contact area with the air and accelerating the dissipation of heat.

[0013] Optionally, the housing is provided with a drive rod, through which two mounting rings pass. The drive rod is capable of rotating on the housing. Both ends of the drive rod are provided with threaded structures with opposite directions of rotation. The two mounting rings are respectively sleeved on both ends of the drive rod and threadedly connected to the drive rod. The rotation of the drive rod is used to drive the two mounting rings to move closer to or further away from each other. The connecting plate includes two linkage plates, each corresponding to a mounting ring. One end of each linkage plate is hinged to the corresponding mounting ring. The linkage plate is capable of rotating towards or away from the housing. The ends of the two linkage plates away from the mounting rings are rotatably connected by a rotating shaft.

[0014] By adopting the above technical solution, in the initial state, the two mounting rings are far apart, making the linkage plate closer to the cabinet for easy storage. When the cabinet is hot, rotating the drive rod causes the two mounting rings to move away from each other, thereby driving the linkage plate to rotate away from the cabinet. That is, the shaft gradually moves away from the cabinet, making the two linkage plates convex, thus increasing the contact area between the linkage plates and the air, thereby increasing the heat dissipation efficiency.

[0015] Optionally, a telescopic assembly is connected to the rotating shaft. The telescopic assembly includes two opposing rotating members. One end of each rotating member is connected to the rotating shaft, and the other end is connected to the housing. Each rotating member includes two rotating plates. One rotating plate is hinged to the rotating shaft, and the other rotating plate is connected to the housing. The two rotating plates are rotatably connected at their close ends.

[0016] By adopting the above technical solution, when the linkage plate is close to the housing, the distance between the rotating shaft and the housing is small, allowing the two rotating plates of each rotating component to be close to each other. The two rotating plates are hinged together to form an L-shaped structure. The rotating component consists of two opposing L-shaped structures, thus forming a rhombus structure. The close proximity of the two hinged rotating plates makes the rhombus structure formed by the telescopic assembly flatter, facilitating the close contact between the linkage plate and the housing.

[0017] When the two mounting rings approach each other, causing the linkage plate to rotate away from the housing, the distance between the shaft and the housing increases. This causes one end of the rotating component to move, resulting in the rotation of the rotating plate and stretching the rhomboid structure formed by the rotating plate. The larger space between the shaft and the housing facilitates airflow, and the extended rhomboid structure increases the contact area between the rotating plate and the air, thereby improving heat dissipation efficiency.

[0018] Optionally, the rotating plate is provided with heat dissipation holes.

[0019] By adopting the above technical solution, the function of the heat dissipation holes is to increase air circulation and further improve heat dissipation efficiency.

[0020] Optionally, the housing is provided with a rotating assembly, which is connected to a rotating component and is used to drive the telescopic assembly to rotate.

[0021] By adopting the above technical solution, when the connecting plate arches up, causing the rhomboid structure composed of the rotating plate to unfold, the rotating component is activated to drive the rhomboid structure to rotate, thereby accelerating the airflow, enhancing convection, and carrying away heat more quickly, thus improving heat dissipation efficiency.

[0022] Optionally, the rotating assembly includes a fixed gear and several rotating gears. The fixed gear is coaxially sleeved on the housing. The several rotating gears correspond one-to-one with the telescopic assembly. The end of the rotating component away from the rotating shaft is rotatably connected to the rotating gear. The rotating gear meshes with the fixed gear. The housing is provided with a driving assembly for driving the mounting ring to rotate.

[0023] By adopting the above technical solution, when the drive component drives the mounting ring to rotate the connecting plate, the telescopic component moves around the box in a circular motion. The rotating part carries the rotating gear and moves along the box. Because the rotating gear meshes with the fixed gear, the rotating gear slides along the fixed gear, driving the rotating gear to rotate. This causes the rotating part to rotate around the rotating gear as an axis, thus realizing the rotation of the telescopic component.

[0024] Optionally, the drive assembly includes a drive gear and a rotating gear. The drive gear is mounted on the housing and can rotate on the housing. The rotating gear is coaxially mounted on the housing and can rotate on the housing. One end of the drive rod is rotatably connected to the rotating gear, and the drive gear meshes with the rotating gear.

[0025] By adopting the above technical solution, the drive gear is driven to rotate, which in turn drives the rotating gear to rotate, thereby causing the drive rod to reciprocate in a circular motion around the housing, which in turn drives the mounting ring to rotate, thus realizing the movement of the rotating part. With the cooperation of the fixed gear and the rotating gear, the rotation of the rotating part is realized.

[0026] In summary, this application includes at least one of the following beneficial effects: 1. By utilizing the frame to fit tightly against the inner wall of the enclosure, and the enameled wire to abut against the inner wall of the enclosure, the heat generated inside the motor can be quickly transferred to the enclosure, improving heat dissipation efficiency. Furthermore, the injection of insulating varnish through the drip nozzle enhances the motor's insulation and sealing performance. 2. When the connecting plate arches up, causing the rhomboid structure formed by the rotating plate to unfold, the rotating assembly is activated, driving the rhomboid structure to rotate, thereby accelerating airflow, enhancing convection, and carrying away the heat on the rotating plate more quickly, thus improving the overall heat dissipation efficiency of the motor. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a sealed motor with high-efficiency heat dissipation according to an embodiment of this application; Figure 2 This is a cross-sectional view of the structure of the sealed motor with high-efficiency heat dissipation according to an embodiment of this application; Figure 3 This is a schematic diagram of the paint drip nozzle on the skeleton. Figure 4 This is a schematic diagram of the heat dissipation component.

[0028] In the diagram: 10. Housing; 11. Cover plate; 12. Ejector pin; 13. Spiral groove; 20. Rotating shaft; 30. Frame; 31. Iron core; 32. Paint drip nozzle; 40. Enamelled wire; 50. Heat dissipation assembly; 51. Mounting ring; 52. Connecting plate; 521. Linkage plate; 522. Rotating shaft; 60. Drive rod; 70. Telescopic assembly; 71. Rotating component; 711. Rotating plate; 712. Heat dissipation hole; 80. Rotating assembly; 81. Fixed gear; 82. Rotating gear; 90. Drive assembly; 91. Drive gear; 92. Rotating gear. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses a sealed motor with high-efficiency heat dissipation. (Refer to...) Figure 1 and Figure 2 The high-efficiency heat dissipation sealed motor includes a housing 10, a cover plate 11, a rotating shaft 20, a frame 30, and an iron core 31. The cover plate 11 is located at the end of the housing 10 to seal the housing 10. One end of the rotating shaft 20 is inserted into the housing 10 and can rotate. The frame 30 is sleeved on the rotating shaft 20 and is in close contact with the inner wall of the housing 10. The iron core 31 is set on the frame 30, and the enameled wire 40 wound on the iron core 31 abuts against the inner wall of the housing 10.

[0031] Reference Figure 2 and Figure 3 The frame 30 has a varnish drip hole 32. The frame 30 is in close contact with the inner wall of the housing 10, and the enameled wire 40 is also in contact with the inner wall of the housing 10, allowing for rapid heat transfer from the motor's interior to the housing 10. The varnish drip hole 32, filled with insulating varnish, enhances insulation and sealing performance. Reference Figure 1 and Figure 2 The high-efficiency heat dissipation sealed motor also includes a heat dissipation component 50, a drive rod 60, a telescopic component 70, a rotating component 80, and a drive component 90. The heat dissipation component 50 is located on the outer wall of the housing 10. The drive rod 60 passes through the mounting ring 51 of the heat dissipation component 50. The telescopic component 70 is connected to the rotating shaft 522 of the heat dissipation component 50. The rotating component 80 is connected to the telescopic component 70. The drive component 90 is used to drive the mounting ring 51 of the heat dissipation component 50 to rotate, thereby improving the heat dissipation efficiency and sealing performance of the motor. The heat dissipation component 50, the telescopic component 70, and the rotating component 80 work together to increase the contact area with air and accelerate airflow, thereby improving the heat dissipation efficiency.

[0032] Reference Figure 1 and Figure 2Specifically, the end wall of the housing 10 is provided with ejector pins 12, which are located inside the housing 10 and directly opposite the paint dripping nozzle 32. The ejector pins 12 are integrally formed with the housing 10, forming a cylindrical protruding structure. This protruding structure facilitates demolding during the fabrication of the housing 10. When insulating varnish enters the interior of the housing 10 through the paint dripping nozzle 32, the ejector pins 12 occupy part of the internal space of the housing 10, reducing the amount of insulating varnish used. The inner wall of the housing 10 is provided with spiral grooves 13, which increase the contact area between the housing 10 and the frame 30, and also store some adhesive, allowing the frame 30 to bond more tightly to the inner wall of the housing 10.

[0033] Reference Figure 1 and Figure 2 The cover plate 11 is fixed to the end of the housing 10 by bolts or other means, and serves to cover the housing 10. A rubber ring is installed at the connection between the cover plate 11 and the housing 10 to prevent dust, moisture and other substances from entering the motor.

[0034] The rotating shaft 20 is typically made of metal, such as stainless steel or carbon steel, and is inserted into the housing 10 at one end. It rotates via bearings and other components. An oil seal is applied at the connection between the housing 10 and the rotating shaft 20 to reduce friction between them and ensure smooth rotation of the rotating shaft 20.

[0035] Reference Figure 2 and Figure 3 The shape of the frame 30 is designed according to the internal structure of the motor to ensure that it fits tightly against the inner wall of the housing 10. The iron core 31 mounted on the frame 30 is usually made of laminated silicon steel sheets. Silicon steel sheets have good magnetic conductivity, which can reduce the energy loss of the motor. Enamelled wire 40 is wound on the iron core 31. The enamelled wire 40 is generally made of copper, and its surface is coated with insulating varnish that flows in through the varnish dripping nozzle 32. The enamelled wire 40 abuts against the inner wall of the housing 10, which helps to transfer the heat generated inside the motor to the housing 10.

[0036] Reference Figure 1 and Figure 4 The heat dissipation assembly 50 includes two mounting rings 51 and several connecting plates 52. The mounting rings 51 are generally annular structures and coaxially fitted onto the housing 10. The connecting plates 52 are located between the two mounting rings 51, with one end connected to one of the mounting rings 51 and the other end connected to the other mounting ring 51. The connecting plates 52 are arranged at intervals along the circumference of the mounting rings 51. The connecting plates 52 can increase the contact area with air and accelerate heat dissipation.

[0037] Reference Figure 1 and Figure 4The drive rod 60 has two mounting rings 51 passing through it, allowing it to rotate on the housing 10. Both ends of the drive rod 60 have oppositely helical threads, making it a bidirectional lead screw. The two mounting rings 51 are respectively fitted onto both ends of the drive rod 60 and threadedly connected to it. When the drive rod 60 rotates, it drives the two mounting rings 51 to move closer or further apart.

[0038] Reference Figure 1 and Figure 4 The connecting plate 52 includes two linkage plates 521, each corresponding to a mounting ring 51. One end of each linkage plate 521 is hinged to its corresponding mounting ring 51, allowing it to rotate towards or away from the housing 10. The ends of the two linkage plates 521 away from the mounting rings 51 are rotatably connected via a rotating shaft 522. Initially, the two mounting rings 51 are far apart, and the linkage plates 521 are close to the housing 10 for easy storage. When the housing 10 is hot, rotating the drive rod 60 brings the two mounting rings 51 closer together, causing the linkage plates 521 to rotate away from the housing 10, increasing the contact area between the linkage plates 521 and the air, and improving heat dissipation efficiency.

[0039] Reference Figure 1 and Figure 4 The telescopic assembly 70 is connected to the rotating shaft 522 and includes two opposing rotating members 71. One end of each rotating member 71 is connected to the rotating shaft 522, and the other end is connected to the housing 10. Each rotating member 71 includes two rotating plates 711. One rotating plate 711 is hinged to the rotating shaft 522, and the other rotating plate 711 is connected to the housing 10. The ends of the two rotating plates 711 that are close to each other are rotatably connected. When the linkage plate 521 is close to the housing 10, the distance between the rotating shaft 522 and the housing 10 is small, and the two rotating plates 711 form an L-shaped structure, while the two rotating members 71 form a rhomboid structure that is relatively flat. When the two mounting rings 51 approach each other, and the linkage plate 521 rotates away from the housing 10, the distance between the rotating shaft 522 and the housing 10 increases, causing the rotating plates 711 to rotate and stretching the rhomboid structure formed by the rotating plates 711. This structure not only increases the contact area between the rotating plates 711 and the air but also facilitates airflow and improves heat dissipation efficiency. A heat dissipation hole 712 is provided through the rotating plate 711. The heat dissipation hole 712 can further increase the air circulation and improve the heat dissipation efficiency.

[0040] Reference Figure 1 and Figure 4 The rotating assembly 80 is connected to the rotating component 71 and is used to drive the telescopic assembly 70 to rotate. The rotating assembly 80 includes a fixed gear 81 and several rotating gears 82. The fixed gear 81 is coaxially sleeved on the housing 10, and the several rotating gears 82 correspond one-to-one with the telescopic assembly 70. Reference Figure 1 and Figure 4A rotating rod is rotatably connected to the rotating shaft 522. One end of the rotating plate 711 near the rotating shaft 522 is hinged to the rotating rod, allowing it to rotate around the rotating rod. The hinge shaft at the end of the rotating component 71 away from the rotating shaft 522 is mounted on the rotating gear 82, allowing it to rotate along with the rotating gear 82. The rotating gear 82 meshes with the fixed gear 81. The drive assembly 90 includes a drive gear 91 and a rotating gear 92. The drive gear 91 is mounted on the housing 10 and can rotate on its own axis. The rotating gear 92 is coaxially sleeved on the housing 10 and can rotate on its own axis. One end of the drive rod 60 is rotatably connected to the rotating gear 92, and the drive gear 91 meshes with the rotating gear 92. Driving the drive gear 91 to rotate causes the rotating gear 92 to rotate, which in turn causes the drive rod 60 to reciprocate in a circular motion around the housing 10, driving the mounting ring 51 to rotate, and causing the telescopic assembly 70 to rotate in a circular motion around the housing 10. At this time, the rotating component 71 moves along the housing 10 with the rotating gear 82. Since the rotating gear 82 meshes with the fixed gear 81, the rotating gear 82 slides and rotates along the fixed gear 81, realizing the rotation of the telescopic component 70, accelerating air flow, enhancing convection, and improving heat dissipation efficiency.

[0041] The implementation principle of a high-efficiency heat dissipation sealed motor in this application embodiment is as follows: the tight fit between the frame 30 and the inner wall of the housing 10 and the contact between the enameled wire 40 and the inner wall of the housing 10 effectively improves the speed of heat transfer from the inside of the motor to the housing 10. The coordinated work of the heat dissipation component 50, the telescopic component 70 and the rotating component 80 greatly increases the contact area between the motor and the air, accelerates the air flow, and significantly improves the heat dissipation efficiency.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hermetic motor with high heat dissipation, characterized in that, The utility model provides a kind of coil winding machine, including box (10), cover plate (11), rotating shaft (20), framework (30) and iron core (31), the cover plate (11) is located the end of box (10), for covering the box (10), one end of the rotating shaft (20) is inserted in box (10), the rotating shaft (20) can autorotate on box (10), the framework (30) is sleeved on the rotating shaft (20), the framework (30) is tightly attached on the inner wall of box (10), the iron core (31) is located framework (30), the enamel wire (40) is wound on the iron core (31), the enamel wire (40) is in contact with the inner wall of box (10), the framework (30) is provided with drip lacquer mouth (32).

2. The sealed electric machine of claim 1, wherein, The end wall of the box (10) is provided with a thimble (12), and the thimble (12) is located in the box (10). The thimble (12) is opposite to the drip lacquer mouth (32).

3. The hermetic motor of claim 1, wherein, The inner wall of the box (10) is provided with a spiral groove (13).

4. The hermetic motor of claim 1, wherein, The outer side wall of the box (10) is provided with a heat dissipation assembly (50), and the heat dissipation assembly (50) comprises two mounting rings (51) and a plurality of connecting plates (52). The mounting ring (51) is coaxially sleeved on the box (10). The connecting plate (52) is located between the two connecting plates (52). One end of the connecting plate (52) is connected to one of the mounting rings (51), and the other end is connected to the other mounting ring (51). A plurality of connecting plates (52) are arranged along the circumferential direction of the mounting ring (51).

5. The hermetic motor of claim 4, wherein, The box (10) is provided with a driving rod (60), the driving rod (60) penetrates two mounting rings (51), the driving rod (60) can autorotate on the box (10), the two ends of the driving rod (60) are provided with thread structures with opposite rotation directions, two mounting rings (51) are sleeved on the two ends of the driving rod (60) and are threadedly connected with the driving rod (60), the driving rod (60) rotates to drive the two mounting rings (51) to move closer to or away from each other, the connecting plate (52) comprises two linkage plates (521), and the two linkage plates (521) correspond to the mounting rings (51) one by one. One end of the linkage plate (521) is hinged to the corresponding mounting ring (51). The linkage plate (521) can rotate towards the box (10) or away from the box (10). The two linkage plates (521) are rotatably connected by a rotating shaft (522) at the ends away from the mounting rings (51).

6. The sealed electric machine of claim 5, wherein, The rotating shaft (522) is connected with a telescopic assembly (70), the telescopic assembly (70) comprises two oppositely arranged rotating members (71), one end of the rotating member (71) is connected with the rotating shaft (522), and the other end is connected with the box (10), the rotating member (71) comprises two rotating plates (711), one of the rotating plates (711) is hinged to the rotating shaft (522), and the other rotating plate (711) is connected with the box (10), and the two rotating plates (711) are rotatably connected at the ends close to each other.

7. The sealed electric machine of claim 6, wherein, A plurality of heat dissipation holes (712) are formed through the rotating plate (711).

8. The sealed electric machine of claim 6, wherein, The box (10) is provided with a rotating assembly (80), the rotating assembly (80) is connected with the rotating part (71), and the rotating assembly (80) is used for driving the telescopic assembly (70) to rotate.

9. The hermetic motor of claim 8, wherein, The rotating assembly (80) comprises a fixed gear (81) and a plurality of rotating gears (82), the fixed gear (81) is coaxially sleeved on the box (10), the plurality of rotating gears (82) correspond to the telescopic assembly (70) one by one, the rotating part (71) is rotatably connected to the rotating gear (82) at an end away from the rotating shaft (522), the rotating gear (82) is engaged with the fixed gear (81), the box (10) is provided with a driving assembly (90), and the driving assembly (90) is used for driving the mounting ring (51) to rotate.

10. The hermetic motor of claim 9, wherein, The driving assembly (90) comprises a driving gear (91) and a rotating gear (92), the driving gear (91) is arranged on the box (10), the driving gear (91) can rotate on the box (10), the rotating gear (92) is coaxially sleeved on the box (10) and can rotate on the box (10), one end of the driving rod (60) is rotatably connected to the rotating gear (92), and the driving gear (91) is engaged with the rotating gear (92).

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