Noise reduction type three-phase asynchronous motor

Abstract

The utility model discloses a noise reduction type three-phase asynchronous motor, comprising a three-phase asynchronous motor main body, the three-phase asynchronous motor main body is mainly composed of a motor housing, an internal rotor, an output shaft, a fan, and a protection mechanism and an adjustable ventilation mechanism installed at one side of a ventilation cavity opening of the three-phase asynchronous motor main body; the adjustable ventilation mechanism comprises a ventilation adjusting ring frame installed on one side of the motor shell, a plurality of sets of wind blocking blades are arranged in the ventilation adjusting ring frame, the wind blocking blades are connected with a center pivot joint block arranged at the circle center of the ventilation adjusting ring frame through one end of a movable rod, and in addition, the wind blocking blades are connected with the center pivot joint block. The movable rods at the other ends of the multiple sets of wind blocking blades extend to the periphery of the ventilation adjusting ring frame, through the arrangement of the adjustable ventilation mechanism, the adjusting ring rolls by means of the roller supporting seat to drive the wind blocking blades to be in linkage with the center pivoting block through the movable rods, the ventilation quantity can be changed according to needs, and different load working conditions of the motor can be adapted.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a noise-reducing three-phase asynchronous motor. Background Technology

[0002] With the increasing demands on motor performance from industrial production and daily life, noise-reducing three-phase asynchronous motors have been widely used in various fields.

[0003] In existing noise-reducing three-phase asynchronous motors, heat dissipation and ventilation are crucial for ensuring normal operation. Currently, the most common method for motor heat dissipation relies on forced ventilation with fans. The ventilation openings typically use fixed ventilation mesh or simple blade structures. However, this fixed structure has significant drawbacks. When the motor load changes, the heat generated also changes, but the fixed ventilation openings cannot flexibly adjust the ventilation volume according to the heat changes. When the motor is lightly loaded, excessive ventilation not only wastes energy but also increases the noise generated by the high-speed fan operation. When the motor is heavily loaded, insufficient ventilation may lead to overheating, affecting the motor's performance and service life.

[0004] Therefore, we provide a noise-reducing three-phase asynchronous motor. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a noise-reducing three-phase asynchronous motor with an adjustable ventilation blade mechanism to achieve angle adjustment, ensuring sufficient heat dissipation of the motor and improving performance and noise reduction.

[0006] In view of this, the present invention provides a noise-reducing three-phase asynchronous motor, including a three-phase asynchronous motor body, which is mainly composed of a motor housing, an internal rotor, an output shaft, and a fan, as well as a protective mechanism and an adjustable ventilation mechanism installed on one side of the ventilation cavity of the three-phase asynchronous motor body;

[0007] The protective mechanism includes a dustproof mesh cover, which is installed on one side of the adjustable ventilation mechanism;

[0008] The adjustable ventilation mechanism includes a ventilation adjustment ring frame installed on one side of the motor housing. The ventilation adjustment ring frame is provided with several sets of wind-blocking blades. The several sets of wind-blocking blades are connected to a central pivot block provided at the center of the ventilation adjustment ring frame through one end of a movable rod. The movable rod at the other end of the several sets of wind-blocking blades extends to the periphery of the ventilation adjustment ring frame. The several sets of movable rods extending to the periphery of the ventilation adjustment ring frame are all connected to the adjustment column provided on the periphery of the adjustment ring through a limiting ring. The adjustment ring is set on the ventilation adjustment ring frame in a rolling connection manner through a roller support seat provided on the outer wall of the ventilation adjustment ring frame.

[0009] Preferably, a positioning ring is provided on one end of the ventilation adjustment ring frame, and the ventilation adjustment ring frame is detachably assembled to the retaining ring at the ventilation cavity opening of the motor housing by means of a positioning bolt.

[0010] Preferably, both ends of the dustproof mesh cover and the ventilation regulating ring frame have matching insertion ports, and the dustproof mesh cover is detachably assembled onto the ventilation regulating ring frame via matching insertion blocks.

[0011] Preferably, a buffer pad is fitted under the motor housing, and the buffer pad is specifically made of rubber.

[0012] Preferably, the adjustable ventilation mechanism also works in conjunction with a control mechanism, the control mechanism including a transmission gear installed below the adjustment ring, the transmission gear meshing with a tooth groove provided on the lower end side of the adjustment ring, and the transmission gear being connected to the output end of the drive motor.

[0013] Preferably, the drive motor is mounted on an assembly slot, which is welded to the bottom side of the motor housing, and a speed regulator is integrated on the assembly slot.

[0014] Preferably, the motor housing is equipped with a controller and a temperature sensor, and the controller can be electrically connected to the speed controller and the temperature sensor through PLC programming technology.

[0015] Compared with the prior art, this utility model provides a noise-reducing three-phase asynchronous motor, which has the following beneficial effects:

[0016] 1. This utility model, through the setting of an adjustable ventilation mechanism, the adjusting ring rolls with the help of the roller support seat, driving the wind deflector blades to move in conjunction with the central pivot block through the movable rod, which can change the ventilation volume as needed and adapt to different load conditions of the motor.

[0017] 2. In this utility model, the ventilation regulating ring frame is detachably assembled with the ventilation cavity of the motor housing via positioning bolts, and the dustproof mesh cover is detachably connected to the ventilation regulating ring frame via insert blocks, which facilitates maintenance and replacement of parts.

[0018] 3. This utility model uses a temperature sensor on the motor housing to sense the temperature, and then uses a controller and PLC programming to control the speed regulator, thereby adjusting the speed of the drive motor, precisely controlling the ventilation volume, reducing noise and ensuring stable operation of the motor.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1 This is an overall view of a noise-reducing three-phase asynchronous motor proposed in this utility model;

[0021] Figure 2 This is a schematic diagram showing the disassembled structure of a noise-reducing three-phase asynchronous motor proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of an adjustable ventilation mechanism for a noise-reducing three-phase asynchronous motor proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the control mechanism structure of a noise-reducing three-phase asynchronous motor proposed in this utility model.

[0024] In the diagram: 1. Motor housing; 11. Snap ring; 2. Buffer pad; 3. Dustproof mesh cover; 31. Insert block; 4. Output shaft; 5. Fan; 6. Adjustable ventilation mechanism; 61. Ventilation adjustment ring frame; 611. Central pivot block; 612. Positioning ring; 613. Insert; 62. Wind deflector blade; 63. Movable rod; 64. Roller support seat; 65. Adjusting ring; 651. Gear groove; 66. Adjusting column; 67. Limit ring; 7. Control mechanism; 71. Drive motor; 72. Transmission gear; 73. Speed ​​controller; 8. Controller; 9. Temperature sensor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1: A noise-reducing three-phase asynchronous motor, such as Figures 1-4 As shown, it includes a three-phase asynchronous motor body, which mainly consists of a motor housing 1, an internal rotor, an output shaft 4, a fan 5, as well as a protective mechanism and an adjustable ventilation mechanism 6 installed on one side of the ventilation cavity of the three-phase asynchronous motor body.

[0028] The protective mechanism includes a dustproof mesh cover 3, which is installed on one side of the adjustable ventilation mechanism 6;

[0029] The adjustable ventilation mechanism 6 includes a ventilation adjustment ring frame 61 installed on one side of the motor housing 1. The ventilation adjustment ring frame 61 is provided with several sets of wind deflectors 62. The several sets of wind deflectors 62 are connected to a central pivot block 611 provided at the center of the ventilation adjustment ring frame 61 through one end of a movable rod 63. The movable rod 63 at the other end of the several sets of wind deflectors 62 extends to the periphery of the ventilation adjustment ring frame 61. The several sets of movable rods 63 extending to the periphery of the ventilation adjustment ring frame 61 are all sleeved and connected to the adjustment post 66 provided on the periphery of the adjustment ring 65 through a limiting ring 67. The adjustment ring 65 is set on the ventilation adjustment ring frame 61 in a rolling connection manner through a roller support seat 64 provided on the outer wall of the ventilation adjustment ring frame 61.

[0030] In the initial state: the regulating ring 65 is in the initial position, and several sets of wind deflectors 62, connected by the movable rod 63, maintain a specific angle with the central pivot block 611 at the center of the ventilation regulating ring frame 61, maintaining a certain ventilation volume. When the motor load changes, if the load increases, the motor generates more heat, and the ventilation volume needs to be increased. Under external control or manual operation, the regulating ring 65 rolls on the outer wall of the ventilation regulating ring frame 61 through the roller support seat 64. The movement of the regulating ring 65 drives the movement of the outer regulating column 66. The regulating column 66 pushes the movable rod 63 through the limit ring 67, causing several sets of wind deflectors 62 to rotate around the central pivot block 611 as the axis, increasing the opening angle, increasing the ventilation volume, and promoting heat dissipation. Conversely, if the motor load decreases and the heat generation decreases, the regulating ring 65 moves in the opposite direction, causing the wind deflectors 62 to decrease the opening angle, reducing the ventilation volume, avoiding energy waste and noise generated by the high-speed operation of the fan.

[0031] like Figures 1-4 As shown, a positioning ring 612 is provided on one end of the ventilation adjustment ring frame 61. The ventilation adjustment ring frame 61 is detachably mounted on the retaining ring 11 at the ventilation cavity opening of the motor housing 1 by means of a positioning bolt. In use, with the help of the positioning ring 612 and the positioning bolt, the ventilation adjustment ring frame 61 can quickly find the installation position on the retaining ring 11 at the ventilation cavity opening of the motor housing 1, which greatly shortens the installation time. In subsequent maintenance, cleaning or replacement of the adjustable ventilation mechanism 6, the ventilation adjustment ring frame 61 can be easily removed from the retaining ring 11 by simply unscrewing the positioning bolt. The operation is simple.

[0032] like Figures 1-4 As shown, both ends of the dust cover 3 and the ventilation regulating ring frame 61 have matching insertion ports 613. The dust cover 3 is detachably mounted on the ventilation regulating ring frame 61 through the matching insertion block 31. When the dust cover 3 accumulates a lot of dust due to long-term use, affecting the ventilation and protection effect, it can be easily removed from the ventilation regulating ring frame 61 for cleaning or replacement, ensuring that the motor is always in a good protective state.

[0033] like Figures 1-4As shown, a buffer pad 2 is installed below the motor housing 1. The buffer pad 2 is specifically made of rubber. The rubber material structure can effectively buffer the vibration generated during motor operation, prevent the vibration from being directly transmitted to the mounting surface, reduce the impact on surrounding equipment and the environment, and reduce noise transmission.

[0034] Example 2: A noise-reducing three-phase asynchronous motor, such as Figures 1-4 As shown, the adjustable ventilation mechanism 6 also works in conjunction with the control mechanism 7. The control mechanism 7 includes a transmission gear 72 installed below the adjustment ring 65. The transmission gear 72 meshes with the tooth groove 651 provided on the lower end side of the adjustment ring 65. The transmission gear 72 is connected to the output end of the drive motor 71.

[0035] The drive motor 71 is mounted on the assembly slot, which is welded to the bottom side of the motor housing 1. A speed regulator 73 is integrated on the assembly slot.

[0036] The motor housing 1 is equipped with a controller 8 and a temperature sensor 9. The controller 8 can be electrically connected to the speed controller 73 and the temperature sensor 9 through PLC programming technology.

[0037] During operation, the three-phase asynchronous motor is powered on, and the internal rotor begins to rotate under electromagnetic force, driving the output shaft 4 to rotate. The fan 5 then runs, generating airflow to prepare for motor cooling. Simultaneously, the controller 8, temperature sensor 9, drive motor 71, speed controller 73, and other related components of the control mechanism 7 are powered on and enter standby mode. After working for a period of time, the temperature sensor 9 monitors the temperature inside the motor housing 1 in real time and transmits the temperature data to the controller 8. When the internal temperature is high, the temperature sensor 9 senses the temperature change and transmits the temperature signal to the controller 8. Based on the preset PLC programming logic, the controller 8 sends a command to the speed controller 73, which controls the drive motor 71 to rotate. The transmission gear 72 meshes with the toothed groove 651 on the lower side of the adjusting ring 65. The rotation of the transmission gear 72 drives the adjusting ring 65 to roll on the outer wall of the ventilation adjusting ring frame 61 through the roller support seat 64. The movement of the adjusting ring 65 drives the movement of the outer adjusting column 66. The adjusting column 66 pushes the movable rod 63 through the limiting ring 67, causing several sets of wind deflector blades 62 to rotate around the central pivot block 611 as the axis, increasing the opening angle, increasing the ventilation volume, and promoting heat dissipation. When the load decreases, the opening angle decreases, reducing the ventilation volume, avoiding energy waste and noise generated by the high-speed operation of the fan. Through automated control based on PLC programming logic, frequent manual intervention is not required, improving the efficiency of motor operation management.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A noise-reducing three-phase asynchronous motor, comprising a three-phase asynchronous motor body, the three-phase asynchronous motor body mainly consisting of a motor housing (1), an internal rotor, an output shaft (4), and a fan (5), and a protective mechanism and an adjustable ventilation mechanism (6) installed on one side of the ventilation cavity of the three-phase asynchronous motor body, characterized in that: The protective mechanism includes a dustproof mesh cover (3), which is installed on one side of the adjustable ventilation mechanism (6); The adjustable ventilation mechanism (6) includes a ventilation adjustment ring frame (61) installed on one side of the motor housing (1). The ventilation adjustment ring frame (61) is provided with several sets of wind deflectors (62). The several sets of wind deflectors (62) are connected to a central pivot block (611) provided at the center of the ventilation adjustment ring frame (61) through one end of a movable rod (63). The movable rod (63) at the other end of the several sets of wind deflectors (62) extends to the periphery of the ventilation adjustment ring frame (61). The several sets of movable rods (63) extending to the periphery of the ventilation adjustment ring frame (61) are all sleeved and connected to the adjustment column (66) provided on the periphery of the adjustment ring (65) through a limiting ring (67). The adjustment ring (65) is set on the ventilation adjustment ring frame (61) in a rolling connection manner through a roller support seat (64) provided on the outer wall of the ventilation adjustment ring frame (61).

2. The noise-reducing three-phase asynchronous motor according to claim 1, characterized in that, The ventilation adjustment ring frame (61) is provided with a positioning ring (612) at one end. The ventilation adjustment ring frame (61) is detachably mounted on the retaining ring (11) at the ventilation opening of the motor housing (1) by means of a positioning bolt.

3. A noise-reducing three-phase asynchronous motor according to claim 1, characterized in that, Both ends of the dustproof mesh cover (3) and the ventilation regulating ring frame (61) have matching insertion ports (613). The dustproof mesh cover (3) is detachably mounted on the ventilation regulating ring frame (61) by means of matching insertion blocks (31).

4. A noise-reducing three-phase asynchronous motor according to claim 1, characterized in that, A buffer pad (2) is installed below the motor housing (1), and the buffer pad (2) is specifically made of rubber.

5. A noise-reducing three-phase asynchronous motor according to claim 1, characterized in that, The adjustable ventilation mechanism (6) also works in conjunction with the control mechanism (7). The control mechanism (7) includes a transmission gear (72) installed below the adjustment ring (65). The transmission gear (72) meshes with the tooth groove (651) provided on the lower end side of the adjustment ring (65). The transmission gear (72) is connected to the output end of the drive motor (71).

6. A noise-reducing three-phase asynchronous motor according to claim 5, characterized in that, The drive motor (71) is mounted on the assembly slot, which is welded to the bottom side of the motor housing (1). A speed regulator (73) is integrated on the assembly slot.

7. A noise-reducing three-phase asynchronous motor according to claim 6, characterized in that, The motor housing (1) is equipped with a controller (8) and a temperature sensor (9). The controller (8) can be electrically connected to the speed controller (73) and the temperature sensor (9) through PLC programming technology.

Images