A new energy motor with delayed heat dissipation

Abstract

The utility model discloses a kind of new energy motor of delay heat dissipation, including rotating shaft, rotor component and stator component, the rear end of the rotating shaft is arranged with heat dissipation component, the heat dissipation component includes volute and installation part, the inside of the volute and installation part has hollow structure, its inside is arranged with fan assembly, the front end center of the volute is opened with round mouth, the fan assembly includes bottom plate, blade and front cover plate, the blade is clamped and arranged inside bottom plate and front cover plate, the rotating shaft is fixedly installed with transmission plate, the bottom plate is connected with rotating shaft by bearing, the side of bottom plate is attached with transmission plate arrangement, one-way transmission component is equipped between bottom plate and transmission plate, the rear end of the installation part is connected with stator component, the center of installation part is equipped with opening, the opening is used to guide the airflow generated by fan assembly rotation to flow through rotor component and stator component.

Description

Technical Field

[0001] This utility model relates to the field of new energy motor technology, and in particular to a delayed heat dissipation new energy motor. Background Technology

[0002] Electric motors, especially new energy motors, are the core of power drive units and are currently being widely and rapidly researched and developed. Their size is getting smaller and their efficiency is getting higher. At the same time, the market is also looking forward to motors that are smaller, more efficient, more stable, and more adaptable to various environments.

[0003] Electric motors, especially small, precision, and efficient ones, accumulate a significant amount of heat during continuous high-power operation. Due to installation limitations, some motors struggle to implement effective heat dissipation channels. Traditionally, motors relying on airflow for cooling typically utilize centrifugal fans at the rear. However, existing motor cooling systems are relatively simple, and the fan is fixedly connected to the motor shaft. When the motor stops rotating, the fan ceases operation, leaving a substantial amount of heat undissipated and posing various potential hazards. Furthermore, some motors require high-frequency intermittent operation, where traditional fixed cooling structures are ineffective at heat dissipation, thus impacting the motor's lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a delayed heat dissipation type new energy motor to improve the heat dissipation efficiency of the motor for the rotor, stator coils and windings, thereby improving its stability and lifespan.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A delayed-heat dissipation new energy motor includes a shaft, a rotor assembly, and a stator assembly. A heat dissipation component is arranged at the rear end of the shaft. The heat dissipation component includes a volute and a mounting part. The volute and mounting part have a hollow structure inside, and a fan assembly is arranged inside. A circular opening is opened at the center of the front end of the volute. The fan assembly includes a base plate, blades, and a front cover plate. The blades are clamped and arranged inside the base plate and the front cover plate. A transmission plate is fixedly installed on the shaft. The base plate is connected to the shaft through a bearing. One side of the base plate is fitted with the transmission plate. A one-way transmission component is provided between the base plate and the transmission plate. The rear end of the mounting part is connected to the stator assembly. An opening is provided at the center of the mounting part. The opening is used to guide the airflow generated by the rotation of the fan assembly to flow to the rotor and stator assemblies.

[0007] Furthermore, the unidirectional transmission component includes balls and grooves in an inclined structure for accommodating the balls.

[0008] Furthermore, three centrally arranged grooves are provided on the side of the base plate close to the transmission plate. The grooves are arranged in an arc shape, with the center of the arc set on the center line of the rotating shaft. The width of the groove is the same as the diameter of the ball, and the depth of the groove is progressive. The inner wall of the groove is an arc structure, allowing the ball to fit against the arc inner wall. One end of the groove allows the ball to be housed inside it, with the outer edge of the ball aligned with the outer wall of the base plate. The other end of the groove allows the outer edge of the ball to protrude from the outer wall of the base plate and contact the transmission plate.

[0009] Furthermore, the volute has a connecting structure at its circular opening for connecting the air intake pipe.

[0010] Furthermore, the front cover plate has an opening at the center of its front end, and a flange structure is provided at the opening. The flange structure kit is arranged inside the circular opening of the volute.

[0011] Furthermore, the front end of the volute has a frustum-shaped beveled structure, and the front cover plate also has a beveled structure, so that the two are in a non-contact but fitted state.

[0012] Furthermore, the fan assembly is placed within the internal space constructed by the volute and the mounting portion, and the cross-section of the fan assembly is trapezoidal.

[0013] Furthermore, the outer diameter of the front cover is larger than the outer diameter of the base plate.

[0014] Furthermore, the outer ring of the base plate is provided with notches and holes.

[0015] Furthermore, the notched holes are positioned between adjacent blades.

[0016] Furthermore, a limiting groove is arranged on the rear side of the mounting part, which can accommodate the stator component and fix the two in place.

[0017] Furthermore, a structural component is arranged at the limiting groove, and a bearing is arranged at the center of the structural component, the bearing being used to install the rotating shaft.

[0018] Furthermore, the structural component is provided with multiple through holes.

[0019] Compared with existing technologies, this solution has the following advantages:

[0020] This solution proposes a delayed-heat dissipation new energy motor body that uses a centrifugal fan assembly to implement airflow cooling. The fan assembly rotates through a one-way transmission component. When the motor rotor speed decreases or stops, the fan assembly continues to rotate based on its own inertial kinetic energy, thus maintaining heat dissipation for a considerable period of time. At the same time, the one-way transmission component is implemented through a ball bearing structure, which ensures stable and reliable operation without abnormal noise or wear, greatly improving its operational stability.

[0021] The fan assembly is arranged in the internal space constructed by the volute and the mounting part, so that airflow can be introduced from the front end of the volute and delivered directly to the rotor and stator components, which can achieve efficient airflow cooling for the inside of the motor and is suitable for various types of motors.

[0022] The fan assembly adopts a built-in arrangement structure, which can reduce the impact of foreign objects on the rotation of the fan assembly. It can centrifuge some dust, impurities or moisture in the air, causing them to impact the inner wall of the volute, thus reducing the impact on the rotor and stator components.

[0023] The circular opening of the volute can be used to connect the intake pipe, which can effectively introduce cold air in extreme installation environments and improve the flexibility of motor installation.

[0024] The fan assembly has a trapezoidal cross-section and uses centrifugal operation through the blades, which can reduce its size, improve its air delivery efficiency, and reduce noise, thus enabling the motor to be used in a variety of environments. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a new energy motor.

[0026] Figure 2 This is a structural schematic diagram of a new energy motor from another angle.

[0027] Figure 3 This is a schematic diagram of the internal structure of the volute.

[0028] Figure 4 This is an exploded view of the fan assembly.

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of the fan assembly.

[0030] Figure 6 This is a schematic diagram of the installation structure of the installation unit.

[0031] Figure 7 This is a schematic diagram of the combined structure of a unidirectional transmission component.

[0032] Figure 8 This is a schematic diagram of the unidirectional transmission component in its separated state. Detailed Implementation

[0033] refer to Figures 1 to 6 A delayed heat dissipation new energy motor includes a rotating shaft 10, a rotor component 11, and a stator component 12. The rotating shaft 10 is connected by front and rear bearings and a housing, and the rotating shaft 10 and the rotor component 11 rotate smoothly at the center of the stator component 12. A heat dissipation component 2 is arranged at the rear end of the rotating shaft 10. The heat dissipation component 2 includes a volute 21 and a mounting part 22. After the volute 21 and the mounting part 22 are assembled, they have a hollow structure similar to a drum. A fan component 3 is arranged inside the hollow structure.

[0034] The front center of the volute 21 has a circular opening 20 for air intake. In some embodiments, the circular opening 20 is provided with a connecting structure or a splicing structure, which can be used to connect an air intake pipe. The air intake pipe can be connected to a specific location of the entire device to facilitate the acquisition of clean, cold air.

[0035] The fan assembly 3 includes a base plate 31, blades 32, and a front cover plate 33. The base plate 31 is installed on the front end of the rotating shaft 10 by screws, so that the base plate 31 and the rotating shaft 10 can rotate synchronously as a whole. The seven blades 32 are arranged in a central row and clamped inside the base plate 31 and the front cover plate 33. The base plate 31, blades 32, and front cover plate 33 can be stamped from thin metal sheets. The blades 32 can be installed by interference fit with the corresponding concave holes of the base plate 31 and the front cover plate 33 through the protrusions on both sides. Alternatively, the three can be fixed by spot welding on this structure, thus realizing the synchronous rotation function of the fan assembly 3 and the rotating shaft 10. When necessary, the dynamic balance structure of the fan assembly 3 should be checked and corrected to enable it to rotate smoothly at high speed.

[0036] The rear end of the mounting part 22 is connected to the stator component 12. Specifically, the mounting part 22 has an opening at its center. The opening is used to guide the airflow generated by the rotation of the fan assembly 3 to the rotor component 11 and the stator component 12. When it is working, the airflow is used to perform heat dissipation and cooling operations on them.

[0037] To improve installation efficiency, increase structural strength, reduce parts, and make the entire motor more integrated, the mounting part 22 can be made of aluminum alloy casting and precision machining. A limiting groove 24 is arranged on the rear side of the mounting part 22. Specifically, the limiting groove 24 is arranged on one side of the opening of the mounting part 22 or on the opposite sides. The limiting groove 24 can accommodate and clamp the outside of the stator component 12 and prevent the two from rotating or sliding, so that the two can be fixedly installed.

[0038] A structural component 23 is arranged at the limiting groove 24 of the mounting part 22. A bearing is arranged at the center of the structural component 23. The bearing is used to install the rotating shaft 10. In order to better guide the airflow, multiple through holes 25 are provided on the structural component 23.

[0039] For the fan assembly 3, an opening 35 is provided at the center of the front end of the front cover 33. A flange structure is provided at the opening 35, which is fitted inside the circular opening of the volute 21, allowing the airflow from the circular opening to be completely guided into the interior of the fan assembly 3. To improve efficiency and reduce space occupation, the front end of the volute 21 has a frustum-shaped bevel structure, and the front cover 33 also has a bevel structure, ensuring that the two are in a non-contact but fitted state. The fan assembly 3 is placed within the internal space constructed by the volute 21 and the mounting portion 22. The fan assembly 3 is positioned close to the front end of the internal space, with a certain amount of space reserved at the rear end to accommodate the air input through the fan assembly 3, and to make the airflow input to the rotor component 11 and stator component 12 more balanced. The cross-section of the fan assembly 3 is a trapezoidal structure (see reference). Figure 5 The blades 32 also gradually decrease in height from the inside to the outside. The outer diameter of the front cover plate 33 is larger than the outer diameter of the bottom plate 31. The outer edge of the front cover plate 33 is basically in contact with the inner wall of the volute 21. Therefore, the airflow will be guided to the rear side of the bottom plate 31. In order to better facilitate the airflow extraction, notches 34 are arranged on the outer ring of the bottom plate 31. The notches 34 are arranged between adjacent blades 32 to improve the airflow extraction efficiency.

[0040] refer to Figure 7 Figure 8 This solution is a delayed heat dissipation type new energy motor. The fan assembly 3 and the rotating shaft 10 are not directly fixedly connected. Specifically, a transmission plate 35 is arranged on the front end of the mounting part 22 on the rotating shaft 10. The transmission plate 35 is fixedly connected to the rotating shaft, and its front end has a firm and flat contact surface. The center of the base plate 31 is connected to the rotating shaft 10 through a bearing, so that the entire fan assembly 3 can rotate freely around the rotating shaft 10. The outer side of the base plate 31 is fitted with the transmission plate 35, and a one-way transmission component is provided between the base plate 31 and the transmission plate 35.

[0041] The unidirectional transmission component includes a ball bearing 36 and a groove 37 with an inclined structure for accommodating the ball bearing. The groove 37 is arranged on the base plate 31 and close to one side of the transmission plate 35. Three grooves 37 are arranged in a central array, and one ball bearing 36 is arranged in each groove 37. The groove 37 has an arc-shaped arrangement, and the center of the arc is set on the center line of the rotating shaft 10. The width of the groove 37 is the same as the diameter of the ball bearing 36. The depth of the groove 37 is a progressive structure. The inner wall of the groove 37 is an arc structure, which allows the ball bearing 36 to fit against the arc inner wall. One end of the groove 37 allows the ball bearing to be accommodated inside it. At this time, the outer edge of the ball bearing 36 is aligned with the outer wall of the base plate 31. Since the groove 37 has a progressively inclined arrangement, the other end of the groove 37 allows the outer edge of the ball bearing 36 to protrude from the outer wall of the base plate 31. At this time, the outer edge of the ball bearing 36 contacts the transmission plate 35.

[0042] Since the transmission plate 35 and the base plate 31 cannot be displaced axially on the rotating shaft 10, the rotation is performed on the rotating shaft 10 (e.g., Figure 7 When the ball bearing 36 contacts the transmission plate 35 during the counterclockwise rotation, the rotating shaft 10 and the transmission ratio 35 can drive the base plate 31 and the fan assembly 3 to perform the counterclockwise rotation operation and keep them rotating at the same speed.

[0043] When the transmission plate 35 rapidly reduces its speed (during shutdown or intermittent operation), the fan component 3 continues to maintain its original speed due to inertia, which will exceed the speed of the transmission plate 35. At this time, it will drive the ball bearing 36 and enter the rear side (deep position area) of the groove 37, thereby causing the transmission plate 35 and the base plate 31 to be separated. Therefore, at this time, the fan assembly 3 continues to rotate and continuously provides fan cooling operation.

[0044] When the inertial kinetic energy of the fan assembly 3 is completely consumed and it is at rest, one of the ball bearings 36 will inevitably slide out from the deep position of the groove 37 due to gravity and contact the surface of the transmission plate 35. If the rotation speed of the transmission plate 35 exceeds the rotation speed of the fan assembly 3, it will drive the fan assembly 3 to continue to rotate, thereby achieving continuous heat dissipation operation.

[0045] In summary, the main body of the delayed heat dissipation new energy motor of this solution adopts a centrifugal fan assembly to implement airflow cooling. The fan assembly rotates through a one-way transmission component. When the motor rotor speed decreases or stops, the fan assembly will continue to rotate based on its own inertial kinetic energy, thus maintaining heat dissipation for a considerable period of time. At the same time, the one-way transmission component is implemented through a ball bearing structure, which is stable and reliable in operation, without abnormal noise or wear, greatly improving its working stability.

[0046] The fan assembly is arranged in the internal space constructed by the volute and the mounting part, so that airflow can be introduced from the front end of the volute and delivered directly to the rotor and stator components, which can achieve efficient airflow cooling for the inside of the motor and is suitable for various types of motors.

[0047] The fan assembly adopts a built-in arrangement structure, which can reduce the impact of foreign objects on the rotation of the fan assembly. It can centrifuge some dust, impurities or moisture in the air, causing them to impact the inner wall of the volute, thus reducing the impact on the rotor and stator components.

[0048] The circular opening of the volute can be used to connect the intake pipe, which can effectively introduce cold air in extreme installation environments and improve the flexibility of motor installation.

[0049] The fan assembly has a trapezoidal cross-section and uses centrifugal operation through the blades, which can reduce its size, improve its air delivery efficiency, and reduce noise, thus enabling the motor to be used in a variety of environments.

Claims

1. A delayed heat dissipation type new energy motor, comprising a rotating shaft, a rotor assembly, and a stator assembly, characterized in that: A heat dissipation assembly is arranged at the rear end of the rotating shaft. The heat dissipation assembly includes a volute and a mounting part. The volute and mounting part have a hollow structure inside, and a fan assembly is arranged inside. A circular opening is opened at the center of the front end of the volute. The fan assembly includes a base plate, blades, and a front cover plate. The blades are clamped and arranged inside the base plate and the front cover plate. A transmission plate is fixedly installed on the rotating shaft. The base plate is connected to the rotating shaft through a bearing. One side of the base plate is fitted with the transmission plate. A one-way transmission component is provided between the base plate and the transmission plate. The rear end of the mounting part is connected to the stator component. An opening is provided at the center of the mounting part. The opening is used to guide the airflow generated by the rotation of the fan assembly to flow to the rotor component and the stator component.

2. The delayed heat dissipation type new energy motor according to claim 1, characterized in that: The unidirectional transmission component includes balls and grooves in an inclined structure for accommodating the balls.

3. The delayed heat dissipation type new energy motor according to claim 2, characterized in that: Three centrally arranged grooves are arranged on the side of the base plate close to the transmission plate. The grooves are arranged in an arc shape, with the center of the arc set on the center line of the rotating shaft. The width of the groove is the same as the diameter of the ball, and the depth of the groove is progressive. The inner wall of the groove is an arc structure, allowing the ball to fit against the inner wall of the arc. One end of the groove allows the ball to be housed inside it, and the outer edge of the ball is aligned with the outer wall of the base plate. The other end of the groove allows the outer edge of the ball to protrude from the outer wall of the base plate and contact the transmission plate.

4. The delayed heat dissipation type new energy motor according to claim 1, characterized in that: The volute has a connecting structure at its circular opening for connecting the air intake pipe.

5. A delayed heat dissipation type new energy motor according to claim 1, characterized in that: The front cover has an opening at the center of its front end, and a flange structure is provided at the opening. The flange structure kit is arranged inside the circular opening of the volute.

6. A delayed heat dissipation type new energy motor according to claim 5, characterized in that: The front end of the volute has a frustum-shaped beveled structure, and the front cover also has a beveled structure, so that the two are in a non-contact but fitted state.

7. A delayed-heat dissipation new energy motor according to claim 1, characterized in that: The fan assembly is placed inside the internal space constructed by the volute and the mounting part. The cross-section of the fan assembly is a trapezoidal structure. The outer diameter of the front cover is larger than the outer diameter of the base plate. The outer ring of the base plate is provided with notches and holes.

8. A delayed-heat dissipation new energy motor according to claim 7, characterized in that: The notched holes are located between adjacent blades.

9. A delayed heat dissipation type new energy motor according to claim 1, characterized in that: A limiting groove is arranged on the rear side of the mounting part, which can accommodate the stator component and fix the two in place.

10. A delayed heat dissipation type new energy motor according to claim 9, characterized in that: A structural component is arranged at the limiting groove, and a bearing is arranged at the center of the structural component. The bearing is used to install the rotating shaft, and the structural component has multiple through holes.

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