A high starting torque single-phase motor

Abstract

The application discloses a high starting torque single-phase motor, and particularly relates to the technical field of motors, which comprises a shock-absorbing base, the inside of the shock-absorbing base is connected with a mounting plate, the top of the mounting plate is provided with a motor, the two ends of the shock-absorbing base and the mounting plate are both jointly provided with two symmetrical spring dampers, and the shock-absorbing base and the mounting plate are jointly provided with two symmetrical vibration detection and adjustment assemblies; the shock-absorbing base and the vibration detection and adjustment assembly are specially arranged; the horizontal displacement of the mounting plate is limited by the cooperation of the guide rod and the sliding seat, the spring one provides horizontal elastic support, and transverse swinging of the motor caused by eccentricity or external impact is avoided; vibration frequency data is generated by counting the beating frequency of the slide rod, the motor operating state can be monitored in real time, when the motor vibration exceeds a preset threshold value, the electromagnet is electrified to generate magnetic attraction force, the iron block is pulled to move downward, the spring two is compressed to offset the vibration energy, and the excessive vibration of the mounting plate is inhibited.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and more specifically, to a high starting torque single-phase motor. Background Technology

[0002] In many fields of industrial production and daily life, single-phase motors have been widely used due to their advantages such as simple structure, low cost and easy use. For example, single-phase motors are an indispensable power source in fans, water pumps, compressors and various small mechanical equipment.

[0003] However, traditional single-phase motors inevitably generate vibrations during operation. Excessive vibrations not only produce significant noise and affect the working environment, but also accelerate the wear of internal motor components, reduce the motor's operating accuracy and stability, and increase equipment maintenance costs and failure rates. Therefore, we propose a high starting torque single-phase motor. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high starting torque single-phase motor to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high starting torque single-phase motor, including a shock-absorbing base, an internal mounting plate connected to the shock-absorbing base, a motor mounted on the top of the mounting plate, two symmetrical spring dampers mounted at both ends of the shock-absorbing base and the mounting plate, and two symmetrical vibration detection and adjustment components mounted between the shock-absorbing base and the mounting plate. The vibration detection and adjustment assembly includes a fixed base installed inside the shock-absorbing base and a connecting plate at the bottom of the mounting plate. An iron block is installed at the bottom of the connecting plate. An electromagnet is installed inside the fixed base. A second spring is installed on the top of the electromagnet. One end of the second spring is connected to the iron block. A fixed cylinder is installed on one side of the fixed base. An mounting cylinder is installed on one side of the fixed cylinder. A sliding rod is connected inside the fixed cylinder. A pressing block is installed at one end of the sliding rod. A third spring is installed on one side of the fixed cylinder. One end of the third spring is connected to the pressing block. A counting button is installed on one side of the mounting cylinder.

[0006] Preferably, the top of the spring damper is connected to the mounting plate, and the bottom of the spring damper is connected to the shock-absorbing base. The spring damper is used to absorb the vertical vibration energy during motor operation.

[0007] Preferably, the shock-absorbing base has two symmetrical grooves at both ends inside, and a guide rod is installed inside each groove.

[0008] Preferably, a spring is installed on one side of the inner side of the slide groove and outside the guide rod, and a slide block is sleeved on the outside of the guide rod, with the slide block located inside the slide groove.

[0009] Preferably, one end of the spring is connected to the slide, and a connecting bracket is connected to the top of the slide.

[0010] Preferably, one end of the connecting frame is connected to a mounting base, and one side of the mounting base is connected to the mounting plate.

[0011] Preferably, the connecting plate is slidably connected inside the fixed base, and the iron block corresponds to the electromagnet.

[0012] Preferably, one end of the slide bar is located inside the mounting cylinder. The vibration detection and adjustment component adjusts the vibration amplitude of the mounting plate through the magnetic attraction between the electromagnet and the iron block. When the motor vibration exceeds the preset threshold, the electromagnet is energized to enhance the magnetic attraction to suppress the vibration. The counting button is connected to the central processing unit to count the number of times the slide bar is hit and generate vibration frequency data to help determine the operating status of the motor.

[0013] Preferably, the pressing block is located inside the fixed cylinder and inside the fixed seat.

[0014] The technical effects and advantages of this invention are as follows: In use, this invention improves the overall rotor resistance and thus the slip by adjusting the cast aluminum alloy composition of the rotor bars. This innovative design enables the rotor to generate a larger induced current during startup, significantly enhancing the starting torque, which can reach approximately 0.9 times the rated torque, far exceeding the 0.3-0.4 times of traditional motors. Simultaneously, the rotor slot design employs a skin effect optimized structure, concentrating the starting current on the slot surface, further increasing the equivalent resistance. This, combined with material optimization, achieves a cumulative torque increase. The turns ratio, wire diameter difference, and stator slot distribution of the main and auxiliary windings have been optimized through electromagnetic simulation, and sinusoidal winding technology is used to weaken fifth and higher harmonics, making the starting magnetic field nearly circular, reducing torque fluctuations, and improving starting efficiency. These comprehensive improvements enable the motor to easily handle heavy-load startup scenarios, greatly improving the reliability and stability of the equipment during startup and reducing equipment failures and production interruptions caused by startup difficulties.

[0015] In use, this invention features a dedicated shock-absorbing base and vibration detection and adjustment components. The spring damper absorbs vertical vibration energy during motor operation through elastic deformation, reducing the impact of mechanical stress on the motor and mounting structure. The guide rod and slide block work together to limit the horizontal displacement of the mounting plate, while spring one provides horizontal elastic support, preventing the motor from swaying laterally due to eccentricity or external impact. By statistically analyzing the number of times the slide rod strikes, vibration frequency data is generated, enabling real-time monitoring of the motor's operating status. When the motor vibration exceeds a preset threshold, the electromagnet is energized to generate magnetic attraction, pulling the iron block downwards and compressing spring two to counteract the vibration energy and suppress excessive vibration of the mounting plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a first-view internal view of the structure of the present invention.

[0018] Figure 3 This is a semi-exploded view of the structure of the present invention.

[0019] Figure 4 This is a second-view internal view of the structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the vibration detection and adjustment component of the present invention.

[0021] Figure 6 This is an internal diagram of the vibration detection and adjustment component of the present invention.

[0022] The attached diagram is labeled as follows: 1. Vibration damping base; 2. Mounting plate; 3. Motor; 4. Spring damper; 5. Vibration detection and adjustment assembly; 6. Slide groove; 7. Guide rod; 8. Spring 1; 9. Slide seat; 10. Connecting frame; 11. Mounting seat; 51. Fixed seat; 52. Connecting plate; 53. Iron block; 54. Electromagnet; 55. Spring 2; 56. Fixed cylinder; 57. Mounting cylinder; 58. Slide rod; 59. Pressing block; 510. Spring 3; 511. Counting button. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] As attached Figures 1-6The high starting torque single-phase motor shown includes a shock-absorbing base 1, an internal mounting plate 2 connected to the shock-absorbing base 1, a motor 3 mounted on the top of the mounting plate 2, two symmetrical spring dampers 4 mounted at both ends of the shock-absorbing base 1 and the mounting plate 2, two symmetrical vibration detection and adjustment components 5 mounted between the shock-absorbing base 1 and the mounting plate 2, two symmetrical sliding grooves 6 opened at both ends of the internal side of the shock-absorbing base 1, a guide rod 7 installed inside each sliding groove 6, a spring 8 installed on one side of the internal side of the sliding groove 6 and outside the guide rod 7, a slide seat 9 sleeved on the outside of the guide rod 7, the slide seat 9 located inside the sliding groove 6, one end of the spring 8 connected to the slide seat 9, a connecting frame 10 connected to the top of the slide seat 9, one end of the connecting frame 10 connected to a mounting base 11, and one side of the mounting base 11 connected to the mounting plate 2; The vibration detection and adjustment assembly 5 includes a fixed base 51 installed inside the shock-absorbing base 1 and a connecting plate 52 at the bottom of the mounting plate 2. An iron block 53 is installed at the bottom of the connecting plate 52. An electromagnet 54 is installed inside the fixed base 51. A second spring 55 is installed on the top of the electromagnet 54. One end of the second spring 55 is connected to the iron block 53. A fixed cylinder 56 is installed on one side of the fixed base 51. An mounting cylinder 57 is installed on one side of the fixed cylinder 56. A slide rod 58 is connected inside the fixed cylinder 56. A pressing block 59 is installed at one end of the slide rod 58. A third spring 510 is installed inside the fixed cylinder 56. One end of the third spring 510 is connected to the pressing block 59. A counting button 511 is installed inside the mounting cylinder 57. The top of the spring damper 4 is connected to the mounting plate 2, and the bottom of the spring damper 4 is connected to the shock-absorbing base 1. The spring damper 4 is used to absorb the vertical vibration energy of the motor 3 during operation. The connecting plate 52 is slidably connected inside the fixed base 51. The iron block 53 corresponds to the electromagnet 54. One end of the slide rod 58 is located inside the mounting cylinder 57. The vibration detection and adjustment component 5 adjusts the vibration amplitude of the mounting plate 2 through the magnetic attraction between the electromagnet 54 and the iron block 53. When the vibration of the motor 3 exceeds the preset threshold, the electromagnet 54 is energized to enhance the magnetic attraction to suppress the vibration. The counting button 511 is connected to the central processing unit to count the number of times the slide rod 58 is hit and generate vibration frequency data to help determine the operating status of the motor 3. The pressing block 59 is located inside the fixed cylinder 56 and inside the fixed base 51.

[0025] The spring damper 4 is a device that integrates the elasticity of a spring with the damping function of a damper. The spring part uses a high-strength, high-elasticity alloy spring, which can withstand the large vertical force generated during the operation of the motor 3 and quickly return to its original shape after deformation under force, providing elastic support for the motor 3. The damping part is usually composed of damping oil and a piston. The piston reciprocates in the damping oil, and the vibration energy is consumed by the viscous resistance of the damping oil, which plays a role in damping and buffering. The top of the spring damper 4 is firmly connected to the mounting plate 2 by bolts, and the bottom is also connected to the damping base 1 by bolts. This bolt connection method ensures that the spring damper 4 can stably transmit and absorb vibration energy during the operation of the motor 3, and will not affect the damping effect due to loosening. The fixed base 51 is fixedly installed inside the shock-absorbing base 1, and the connecting plate 52 is slidably connected inside the fixed base 51, so that the connecting plate 52 can slide up and down in the vertical direction inside the fixed base 51, while ensuring the stability and flexibility of the connection, so as to accurately detect the vibration of the motor 3. Spring 55 is installed on top of electromagnet 54, with one end connected to electromagnet 54 and the other end connected to iron block 53. When motor 3 is running normally and the vibration does not exceed the preset threshold, iron block 53 and electromagnet 54 maintain a certain initial distance only by the elastic force of spring 55. When the vibration of motor 3 exceeds the preset threshold, electromagnet 54 is energized to generate magnetic attraction force, which overcomes the elastic force of spring 55 and pulls iron block 53 downward, thereby compressing spring 55. In this way, some vibration energy is offset and excessive vibration of mounting plate 2 is suppressed. When the motor 3 vibrates and causes the mounting plate 2 to move up and down, the pressing block 59 is squeezed and causes the slide rod 58 to slide inside the fixed cylinder 56. The sliding of the slide rod 58 causes the pressing block 59 to compress the spring 3 510. When the pressing block 59 moves to a certain position, it will trigger the counting button 511. The counting button 511 transmits each strike signal to the central processing unit. The central processing unit generates vibration frequency data based on the number of received signals, thereby realizing real-time monitoring of the operating status of the motor 3.

[0026] The working principle of this invention is as follows: By adjusting the cast aluminum alloy composition of the rotor bars, the overall resistance of the rotor is increased, thereby improving the slip. This change causes the rotor to generate a larger induced current during the startup phase, significantly enhancing the starting torque (approximately 0.9 times the rated torque), far exceeding that of traditional motors (0.3-0.4 times), which can meet the starting requirements of heavy-load motors. The rotor slot design adopts a skin effect optimized structure, which concentrates the current on the slot surface during startup, further increasing the equivalent resistance. Combined with material optimization, this achieves a torque superposition improvement. The turns ratio, wire diameter difference, and stator slot distribution of the main and auxiliary windings are optimized through electromagnetic simulation. Sine winding technology is used to weaken the 5th and higher harmonics, making the starting magnetic field closer to a circle, reducing torque fluctuations, and improving starting efficiency. The spring damper 4 absorbs the vertical vibration energy of the motor 3 during operation through elastic deformation, reducing the impact of mechanical stress on the motor 3 and the mounting structure; the guide rod 7 cooperates with the slide 9 to limit the horizontal displacement of the mounting plate 2, and the spring 8 provides horizontal elastic support to prevent the motor 3 from swaying laterally due to eccentricity or external impact. During vibration, the up-and-down displacement of the mounting plate 2 causes the slide bar 58 to slide inside the fixed cylinder 56, the pressing block 59 compresses the spring 510 and triggers the counting button 511; the counting button 511 transmits the number of hits to the central processing unit to generate vibration frequency data, and the electromagnet 54 is activated when the vibration frequency is high. In the vibration detection and adjustment component 5, the iron block 53 and the electromagnet 54 maintain an initial distance through the second spring 55; when the vibration of the motor 3 exceeds the preset threshold, the electromagnet 54 is energized to generate magnetic attraction, which pulls the iron block 53 down and compresses the second spring 55 to offset the vibration energy and suppress the excessive vibration of the mounting plate 2. This motor 3 replaces the centrifugal switch or relay of the traditional dual-capacitor motor 3 with a single-capacitor design, reducing vulnerable parts and lowering maintenance costs and failure rate.

[0027] Finally, the following points should be noted: First, in the description of this invention, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can refer to mechanical connection or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the object being described changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high starting torque single-phase motor, comprising a shock-absorbing base (1), characterized in that: The shock-absorbing base (1) is internally connected to a mounting plate (2), and a motor (3) is mounted on the top of the mounting plate (2). Two symmetrical spring dampers (4) are mounted on both ends of the shock-absorbing base (1) and the mounting plate (2). Two symmetrical vibration detection and adjustment components (5) are mounted between the shock-absorbing base (1) and the mounting plate (2). The vibration detection and adjustment assembly (5) includes a fixed seat (51) installed inside the shock-absorbing base (1) and a connecting plate (52) at the bottom of the mounting plate (2). An iron block (53) is installed at the bottom of the connecting plate (52). An electromagnet (54) is installed inside the fixed seat (51). A second spring (55) is installed on the top of the electromagnet (54). One end of the second spring (55) is connected to the iron block (53). A fixed cylinder (56) is installed on one side of the fixed seat (51). An mounting cylinder (57) is installed on one side of the fixed cylinder (56). A slide rod (58) is connected inside the fixed cylinder (56). A pressing block (59) is installed at one end of the slide rod (58). A third spring (510) is installed on one side of the inside of the fixed cylinder (56). One end of the third spring (510) is connected to the pressing block (59). A counting button (511) is installed on one side of the inside of the mounting cylinder (57).

2. A high starting torque single-phase motor according to claim 1, characterized in that: The top of the spring damper (4) is connected to the mounting plate (2), and the bottom of the spring damper (4) is connected to the shock absorber base (1). The spring damper (4) is used to absorb the vertical vibration energy of the motor (3) during operation.

3. A high starting torque single-phase motor according to claim 1, characterized in that: The shock-absorbing base (1) has two symmetrical grooves (6) at both ends inside, and a guide rod (7) is installed inside each groove (6).

4. A high starting torque single-phase motor according to claim 3, characterized in that: A spring (8) is installed on one side of the inner side of the slide groove (6) and outside the guide rod (7). A slide block (9) is sleeved on the outside of the guide rod (7) and the slide block (9) is located inside the slide groove (6).

5. A high starting torque single-phase motor according to claim 4, characterized in that: One end of the spring (8) is connected to the slide (9), and the top of the slide (9) is connected to the connecting bracket (10).

6. A high starting torque single-phase motor according to claim 5, characterized in that: One end of the connecting frame (10) is connected to the mounting base (11), and one side of the mounting base (11) is connected to the mounting plate (2).

7. A high starting torque single-phase motor according to claim 1, characterized in that: The connecting plate (52) is slidably connected inside the fixed base (51), and the iron block (53) corresponds to the electromagnet (54).

8. A high starting torque single-phase motor according to claim 1, characterized in that: One end of the slide bar (58) is located inside the mounting cylinder (57). The vibration detection and adjustment component (5) adjusts the vibration amplitude of the mounting plate (2) through the magnetic attraction between the electromagnet (54) and the iron block (53). When the vibration of the motor (3) exceeds the preset threshold, the electromagnet (54) is energized to enhance the magnetic attraction to suppress the vibration. The counting button (511) is connected to the central processing unit to count the number of times the slide bar (58) hits and generate vibration frequency data to help determine the operating status of the motor (3).

9. A high starting torque single-phase motor according to claim 1, characterized in that: The pressing block (59) is located inside the fixed cylinder (56) and the pressing block (59) is located inside the fixed base (51).

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