Servo motor with electric reactor

Abstract

The utility model relates to the technical field of motors, and provides a servo motor with a reactor, which comprises a motor main body, a heat dissipation shell welded on one side of the motor main body, a protective shell fixedly connected on one side of the heat dissipation shell through screws, and a main circuit which is an annular circuit. A main winding, a secondary winding, a normally-closed contact thermal protector and a running capacitor are arranged in the main circuit, and through the arrangement of structures such as the normally-closed contact thermal protector, the normally-closed contact thermal protector can intelligently cut off the circuit under the conditions that the current is unstable and the internal temperature is increased, so that the running capacitor is switched off; potential damage to circuit elements caused by abnormal current fluctuation is effectively prevented, meanwhile, the electric reactor serves as a standby current path to be activated, the change range of the current is limited through the impedance characteristic of the electric reactor, it is ensured that the current is maintained at the safe and stable level, and an additional protection barrier is provided for the circuit.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a servo motor with a reactor. Background Technology

[0002] Currently, a servo motor refers to an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor indirect speed change device. A servo motor can convert voltage signals into torque and speed to drive the controlled object, thereby achieving precise control of mechanical motion.

[0003] However, in the existing servo motor technology, when the current is unstable during use, heat will accumulate inside the motor, which will affect its service life. Although the existing technology has a switching mechanism, it requires two different sets of windings to drive the motor, which is costly. Summary of the Invention

[0004] This invention proposes a servo motor with a reactor, which solves the problem of poor current instability in related technologies.

[0005] The technical solution of this utility model is as follows:

[0006] To achieve the above objectives, the present invention provides the following technical solution: a servo motor with a reactor, comprising a motor body, a heat dissipation shell welded to one side of the motor body, and a protective shell fixedly connected to one side of the heat dissipation shell by screws;

[0007] It also includes a main circuit, which is a ring circuit. The main circuit is equipped with a main winding, a secondary winding, a normally closed contact thermal protector, and a running capacitor. An inverter is connected in parallel across the two ends of the normally closed contact thermal protector. By setting the inverter, when the current is unstable, the internal temperature will be high. At this time, the current will be stabilized through the inverter, thus ensuring the service life of each component.

[0008] Preferably, the anti-electrode device is installed inside the protective housing. Placing the anti-electrode device outside the motor and providing a protective housing simplifies the installation of the anti-electrode device.

[0009] Preferably, the normally closed contact thermal protector is installed inside the heat dissipation housing, and the heat dissipation housing has several heat dissipation fins evenly distributed in a ring array welded inside. By setting the heat dissipation fins, the excess heat generated inside can be dissipated, ensuring the service life of the motor.

[0010] Preferably, the main winding, auxiliary winding, and running capacitor are all installed inside the motor body.

[0011] The working principle and beneficial effects of this utility model are as follows:

[0012] 1. By setting up a normally closed contact thermal protector and other structures, this utility model can intelligently cut off the circuit when the current is unstable and the internal temperature rises, effectively preventing abnormal current fluctuations from causing potential damage to circuit components. At the same time, the reactor is activated as a backup current path, and its impedance characteristics limit the range of current variation, ensuring that the current is maintained at a safe and stable level, providing an additional protection barrier for the circuit.

[0013] 2. By setting up structures such as reactors, this utility model ensures that when the current stabilizes for a period of time and the temperature returns to normal, the normally closed contact thermal protector automatically closes, restoring the normal operation of the circuit. During this process, the reactor is only connected when the current is unstable. By dynamically limiting the current, it effectively protects the motor from excessive or insufficient current surges, thereby significantly extending the service life of the motor. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is a side view of the present invention;

[0018] In the diagram: 1. Main winding; 2. Auxiliary winding; 3. Running capacitor; 4. Normally closed contact thermal protector; 5. Anti-electrical device; 6. Motor body; 7. Heat dissipation shell; 8. Protective shell. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1-3 As shown, this embodiment proposes a servo motor with a reactor, including a motor body 6, a heat dissipation shell 7 welded to one side of the motor body 6, and a protective shell 8 fixedly connected to one side of the heat dissipation shell 7 by screws.

[0021] It also includes a main circuit, which is a ring circuit. The main circuit contains a main winding 1, an auxiliary winding 2, a normally closed contact thermal protector 4, and a running capacitor 3. An electro-amplifier 5 is connected in parallel across the two ends of the normally closed contact thermal protector 4. By setting the electro-amplifier 5, when the current is unstable, the internal temperature will be high. At this time, the current will be stabilized through the electro-amplifier 5, thus ensuring the service life of each component.

[0022] like Figures 1-3 As shown, the anti-electric device 5 is installed inside the protective shell 8. Placing the anti-electric device 5 outside the motor and installing the protective shell 8 can simplify the installation of the anti-electric device 5.

[0023] like Figures 1-3 As shown, the normally closed contact thermal protector 4 is installed inside the heat dissipation housing 7. Several heat dissipation fins are welded inside the heat dissipation housing 7 in a ring array. By setting the heat dissipation fins, the excess heat generated inside can be dissipated to ensure the service life of the motor. The main winding 1, the auxiliary winding 2 and the running capacitor 3 are all installed inside the motor body 6.

[0024] In this embodiment, by connecting a reactor 5 in series with the normally closed contact thermal protector 4, when the current is unstable and the internal temperature rises, the normally closed contact thermal protector 4 will open and disconnect. At this time, the current will flow through the reactor 5. When the current flows through the reactor 5, the reactor can limit the range of current variation, keeping it at a safe and stable level. This helps prevent excessive or insufficient current from damaging the components in the circuit.

[0025] Furthermore, after the current stabilizes for a period of time and the temperature recovers, the normally closed contact thermal protector 4 will close, and the current will continue to flow through the normally closed contact thermal protector 4 until the next time the normally closed contact thermal protector 4 opens due to the instability of the current. When the current is unstable, the current is limited to protect the motor, thereby extending the service life of the motor.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A servo motor with a reactor, characterized by, It includes motor body (6), one side of motor body (6) is welded with heat dissipation shell (7), one side of heat dissipation shell (7) is fixedly connected with protective shell (8) through screw; It also includes main circuit, the main circuit is annular circuit, the inside of main circuit is respectively provided with main winding (1), auxiliary winding (2), normally closed contact thermal protector (4) and running capacitor (3), both ends of normally closed contact thermal protector (4) are connected with anti-electric appliance (5) in parallel.

2. A servo motor with a reactor according to claim 1, characterized in that, The anti-electric appliance (5) is installed inside the protective shell (8).

3. A servo motor with a reactor according to claim 1, characterized in that, The normally closed contact thermal protector (4) is installed inside the heat dissipation shell (7), and a plurality of heat dissipation fins in annular array are welded inside the heat dissipation shell (7).

4. A servo motor with a reactor according to claim 1, characterized in that, The main winding (1), the auxiliary winding (2) and the running capacitor (3) are all installed inside the motor body (6).

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