A high-speed motor rotor heat dissipation device

Abstract

This utility model discloses a high-speed motor rotor heat dissipation device, including a motor body, an output shaft on the motor body, a first flange plate fixedly installed at the end of the motor body, a ventilation and heat dissipation hole on one side of the first flange plate, a second flange plate installed on the front of the first flange plate by a fixing component, forming an installation chamber between the second flange plate and the first flange plate, a fan blade assembly installed outside the output shaft and inside the installation chamber, and a filter assembly installed inside the installation chamber. This utility model utilizes the coordinated use of the motor body, the first flange plate, the second flange plate, the fixing component, the fan blade assembly, and the filter assembly. Under the action of the fixing component, a fan blade assembly installation chamber can be formed between the first flange plate and the second flange plate, allowing the fan blade assembly to operate inside the installation chamber when the motor body is fixed, thus dissipating heat from the rotor on the motor body.

Description

Technical Field

[0001] This utility model relates to the field of electric motors, and in particular to a high-speed motor rotor heat dissipation device. Background Technology

[0002] High-speed motors typically refer to motors with a speed exceeding 10,000 r / min. Some definitions set the speed threshold at 12,000 r / min. Their core characteristics include high power density, small size, and the ability to directly drive loads without the need for a reduction gear. Currently, the main types that achieve high speed are induction motors, permanent magnet motors, and switched reluctance motors.

[0003] When a high-speed motor is working, the rotor speed inside the motor increases, and the heat generated also increases. Therefore, it is necessary to dissipate heat from the rotor inside the motor. The most common way to dissipate heat is to install cooling fan blades on the end of the motor shaft. In order to improve its heat dissipation efficiency, cooling fan blades are installed on both ends of the high-speed motor. However, when installing and using a high-speed motor, the end is usually directly connected to the mounting component using a flange plate. This means that a fan blade cannot be installed on one end of the high-speed motor, which is a certain defect. Utility Model Content

[0004] The purpose of this invention is to provide a high-speed motor rotor heat dissipation device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed motor rotor heat dissipation device, comprising:

[0006] The motor body has an output shaft mounted on it.

[0007] The first flange plate is fixedly installed at the end of the motor body, and a ventilation and heat dissipation hole is provided on one side of the first flange plate.

[0008] A second flange plate and a fixing assembly are provided. The second flange plate is mounted on the front of the first flange plate via the fixing assembly, and an installation chamber is formed between the second flange plate and the first flange plate.

[0009] A fan blade assembly, which is mounted on the outside of the output shaft and located inside the mounting chamber;

[0010] A filter assembly, which is installed inside the mounting chamber.

[0011] Preferably, the fixing component includes:

[0012] The fixing bolt has bolt holes on one side of both the second flange plate and the first flange plate, and the outer wall of the fixing bolt is slidably sleeved with the bolt hole.

[0013] A positioning sleeve, the ends of which are respectively fitted to the second flange plate and the first flange plate, and the positioning sleeve is slidably sleeved on the outside of the fixing bolt.

[0014] Preferably, the fan blade assembly includes:

[0015] A vortex fan, wherein the vortex fan is slidably sleeved on the outside of the output shaft;

[0016] The locking block is fixedly connected to the outside of the output shaft, and the outer wall of the locking block is slidably engaged with the turbine fan.

[0017] Preferably, the fan blade assembly further includes:

[0018] A planar bearing, which is sleeved on the outside of the output shaft and located between the turbine fan and the second flange plate;

[0019] The bearing housing is fixedly connected to the back of the second flange plate and is sleeved on the outside of the planar bearing.

[0020] Preferably, the filtering component includes:

[0021] The mounting ring is disposed between the first flange plate and the first flange plate;

[0022] The first filter screen has an installation hole on the outside of the mounting ring, and the first filter screen is fixedly installed inside the installation hole;

[0023] A limiting collar is fixedly connected to one side of the first flange plate and the second flange plate respectively, and the limiting collar is slidably sleeved inside the mounting ring.

[0024] Preferably, the filtering component includes:

[0025] Inner ring, the inner ring being fixedly connected to one side of the first flange plate and the second flange plate respectively;

[0026] An outer ring is fixedly connected to one side of the first flange plate and the second flange plate respectively, and a limiting chamber is formed between the outer ring and the inner ring;

[0027] A connecting strip, the outer wall of which is slidably engaged with the inside of the limiting chamber;

[0028] The second filter screen has a connecting hole on the outer wall of the connecting belt, and the second filter screen is fixedly installed inside the connecting hole.

[0029] Preferably, the filtering component further includes:

[0030] A notch is formed on one side of the outer ring;

[0031] The fastener and screws are used to fix the fastener to one end of the connecting strip and to the back of the second flange plate.

[0032] The technical effects and advantages of this utility model are as follows:

[0033] This utility model utilizes the combined use of a motor body, a first flange plate, a second flange plate, a fixing component, a fan blade assembly, and a filter component. Under the action of the fixing component, a fan blade assembly mounting chamber can be formed between the first flange plate and the second flange plate. Thus, when the motor body is installed and fixed, the fan blade assembly can operate inside the mounting chamber to dissipate heat from the rotor on the motor body. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0035] Figure 2 This is a schematic diagram of the internal structure of the side of the second flange plate of this utility model;

[0036] Figure 3 This is a schematic diagram of the back structure of the second flange plate of this utility model.

[0037] In the diagram: 1. Motor body; 11. Output shaft; 2. First flange plate; 3. Second flange plate; 4. Fixing assembly; 41. Fixing bolt; 42. Positioning sleeve; 5. Fan blade assembly; 51. Turbine fan; 52. Clamping block; 53. Surface bearing; 54. Bearing housing; 6. Filter assembly; 61. Mounting ring; 62. First filter screen; 63. Limiting collar; 64. Connecting belt; 65. Second filter screen; 66. Inner ring; 67. Outer ring; 68. Fixing component. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Example 1: This utility model provides the following... Figure 1-2The high-speed motor rotor cooling device shown includes a motor body 1, a first flange plate 2, a second flange plate 3, a fixing assembly 4, a fan blade assembly 5, and a filter assembly 6. An output shaft 11 is provided on the motor body 1. The first flange plate 2 is fixedly installed at the end of the motor body 1. A ventilation and heat dissipation hole is provided on one side of the first flange plate 2, and heat dissipation holes are also provided on the housing of the motor body 1. An exhaust fan blade is also installed at the tail end of the motor body 1 via the output shaft 11. The provision of heat dissipation holes at the end of the motor body 1 housing is existing technology and will not be described in detail here. The second flange plate 3 is installed on the front side of the first flange plate 2 via the fixing assembly 4, forming an installation chamber between the second flange plate 3 and the first flange plate 2. The fan blade assembly 5 is installed outside the output shaft 11 and inside the installation chamber. The filter assembly 6 is installed inside the installation chamber. When the output shaft 11 on the motor body 1 drives the fan blade assembly 5 and the exhaust fan blade to rotate, an airflow in one direction is generated inside the motor body 1, thereby accelerating the heat dissipation efficiency of the rotor inside the motor body 1.

[0040] In particular, the fixing component 4 includes a fixing bolt 41 and a positioning sleeve 42. Bolt holes are provided on one side of the second flange plate 3 and the first flange plate 2. The outer wall of the fixing bolt 41 is slidably sleeved with the bolt hole. The end of the positioning sleeve 42 is respectively attached to the second flange plate 3 and the first flange plate 2. The positioning sleeve 42 is slidably sleeved on the outside of the fixing bolt 41. The positioning sleeve 42 can ensure the distance between the second flange plate 3 and the first flange plate 2. When the fixing bolt 41 is threadedly connected to the component installed on the motor body 1, it can not only fix the motor body 1, but also fix the second flange plate 3.

[0041] Furthermore, the fan blade assembly 5 includes a vortex fan 51, a locking block 52, a flat bearing 53, and a bearing seat 54. The vortex fan 51 is slidably sleeved on the outside of the output shaft 11, and the locking block 52 is fixedly connected to the outside of the output shaft 11. The outer wall of the locking block 52 is slidably engaged with the vortex fan 51, that is, the inner wall of the vortex fan 51 is provided with a slot that matches the locking block 52. When the output shaft 11 rotates, the vortex fan 51 delivers an airflow into the motor body 1. The exhaust fan blades at the tail end of the motor body 1 discharge the airflow inside the motor body 1, thereby accelerating the airflow rate inside the motor body 1. The flat bearing 53 is sleeved on the outside of the output shaft 11 and is located between the vortex fan 51 and the second flange plate 3. The bearing seat 54 is fixedly connected to the back of the second flange plate 3 and is sleeved on the outside of the flat bearing 53. The flat bearing 53 can ensure the stability of the rotation of the vortex fan 51.

[0042] Furthermore, the filter assembly 6 includes a mounting ring 61, a first filter screen 62, and a limiting collar 63. The mounting ring 61 is disposed between the first flange plate 2 and the second flange plate 3. The mounting ring 61 has a mounting hole on its outside. The first filter screen 62 is fixedly installed inside the mounting hole. The first filter screen 62 can filter the airflow entering the motor body 1 and reduce the probability of impurities entering the motor body 1. The limiting collar 63 is fixedly connected to the opposite side of the first flange plate 2 and the second flange plate 3 respectively. The limiting collar 63 is slidably sleeved inside the mounting ring 61. The limiting collar 63 can ensure the stability of the mounting ring 61 during installation.

[0043] Example 2: Unlike Example 1, as follows Figure 3 As shown, the filter assembly 6 includes an inner ring 66, an outer ring 67, a connecting belt 64, a second filter screen 65, a notch, a fastener 68, and screws. The inner ring 66 is fixedly connected to the opposite sides of the first flange plate 2 and the second flange plate 3, respectively. The outer ring 67 is fixedly connected to the opposite sides of the first flange plate 2 and the second flange plate 3, respectively. A limiting chamber is formed between the outer ring 67 and the inner ring 66. The side of the outer wall of the connecting belt 64 is slidably engaged with the inside of the limiting chamber. The connecting belt 64 is made of plastic and can undergo a certain degree of bending and deformation. Thus, under the constraint of the outer ring 67 and the inner ring 66, the connecting belt 65 can be guaranteed to remain in place. 4. Stability of the connection between the first flange plate 2 and the second flange plate 3. The outer wall of the connecting band 64 is provided with a connecting hole. The second filter screen 65 is fixedly installed inside the connecting hole. The second filter screen 65 can filter the airflow entering the motor body 1 and reduce the probability of impurities entering the motor body 1. The notch is opened on one side of the outer ring 67. The fastener 68 is fixedly connected to one end of the connecting band 64. The fastener 68 is fixedly installed on the back of the second flange plate 3 by screws. By removing the fastener 68, the connecting band 64 can be pulled out, thereby disassembling and cleaning the second filter screen 65.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-speed motor rotor heat dissipation device, characterized in that, include: Motor body (1), on which an output shaft (11) is provided; The first flange plate (2) is fixedly installed at the end of the motor body (1), and a ventilation and heat dissipation hole is provided on one side of the first flange plate (2). The second flange plate (3) and the fixing assembly (4) are mounted on the front of the first flange plate (2) by the fixing assembly (4), and an installation chamber is formed between the second flange plate (3) and the first flange plate (2); Fan blade assembly (5), the fan blade assembly (5) is mounted on the outside of the output shaft (11), the fan blade assembly (5) is located inside the mounting chamber; The filter assembly (6) is installed inside the installation chamber.

2. The high-speed motor rotor heat dissipation device according to claim 1, characterized in that, The fixing component (4) includes: The fixing bolt (41) has bolt holes on one side of both the second flange plate (3) and the first flange plate (2), and the outer wall of the fixing bolt (41) is slidably sleeved with the bolt hole; The positioning sleeve (42) has its ends fitted with the second flange plate (3) and the first flange plate (2) respectively, and the positioning sleeve (42) is slidably sleeved on the outside of the fixing bolt (41).

3. The high-speed motor rotor heat dissipation device according to claim 1, characterized in that, The fan blade assembly (5) includes: A vortex fan (51) is slidably sleeved on the outside of the output shaft (11); The locking block (52) is fixedly connected to the outside of the output shaft (11), and the outer wall of the locking block (52) is slidably engaged with the turbine fan (51).

4. A high-speed motor rotor heat dissipation device according to claim 3, characterized in that, The fan blade assembly (5) also includes: A planar bearing (53) is sleeved on the outside of the output shaft (11) and is located between the turbine fan (51) and the second flange plate (3). The bearing housing (54) is fixedly connected to the back of the second flange plate (3) and is sleeved on the outside of the plane bearing (53).

5. A high-speed motor rotor cooling device according to claim 1, characterized in that, The filtering component (6) includes: Mounting ring (61), which is disposed between the first flange plate (2) and the second flange plate (3); The first filter screen (62) has an installation hole on the outside of the mounting ring (61), and the first filter screen (62) is fixedly installed inside the installation hole; The limiting collar (63) is fixedly connected to the opposite side of the first flange plate (2) and the second flange plate (3), and the limiting collar (63) is slidably sleeved inside the mounting ring (61).

6. A high-speed motor rotor heat dissipation device according to claim 1, characterized in that, The filtering component (6) includes: Inner ring (66), the inner ring (66) is fixedly connected to the opposite side of the first flange plate (2) and the second flange plate (3); Outer ring (67), the outer ring (67) is fixedly connected to the opposite side of the first flange plate (2) and the second flange plate (3), and a limiting chamber is formed between the outer ring (67) and the inner ring (66); The connecting strip (64) has its outer wall side slidably engaged with the inside of the limiting chamber; The second filter screen (65) has a connecting hole on the outer wall of the connecting strip (64), and the second filter screen (65) is fixedly installed inside the connecting hole.

7. A high-speed motor rotor heat dissipation device according to claim 6, characterized in that, The filter assembly (6) further includes: A notch is provided on one side of the outer ring (67); The fastener (68) and screws are fixedly connected to one end of the connecting strip (64) and the fastener (68) is fixedly installed on the back of the second flange plate (3) by screws.

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