CN212695930U

CN212695930U - Single-phase motor centrifugal control device

Info

Publication number: CN212695930U
Application number: CN202021597236.5U
Authority: CN
Inventors: 周伏强; 郑可宇; 李建志; 任子平; 赵德
Original assignee: Zhengli Motor Co ltd
Current assignee: Zhengli Motor Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-03-12
Anticipated expiration: 2030-08-04

Abstract

The utility model provides a single-phase motor centrifugal control device belongs to the motor control field. The problem that the conventional centrifugal switch contact and reed cannot meet the requirements due to the fact that the starting current of the existing high-power single-phase motor is large is solved. This single-phase motor centrifugal control device, including input and output, its characterized in that, main winding, secondary winding and contactor coil mutual parallel connection in input and output between, secondary winding and condenser establish ties in proper order after with main winding parallel connection between input and output, the condenser including operation condenser and start capacitor, operation condenser and start capacitor establish ties with secondary winding after according to order parallel connection, start capacitor and contactor are parallelly connected with the operation condenser after establishing ties in proper order.

Description

Single-phase motor centrifugal control device

Technical Field

The utility model belongs to the motor control field relates to a single-phase motor centrifugal control device.

Background

Single-phase motors generally refer to small power single-phase asynchronous motors powered by a single-phase AC power source (AC 220V). Such machines typically have two-phase windings on the stator and the rotor is of the conventional squirrel cage type. The distribution of the two-phase windings over the stator, as well as the supply conditions, may result in different start-up and operating characteristics. Because the starting current of the high-power single-phase motor is large, the conventional centrifugal switch contact and reed cannot meet the requirements.

Disclosure of Invention

The utility model aims at providing a single-phase motor centrifugation controlling means to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the centrifugal control device of the single-phase motor is characterized by comprising an input end L, an output end N, a main winding R1, an auxiliary winding R2, a contactor coil R3, an operating capacitor C1, a starting capacitor C2, a centrifugal switch S1 and a contactor S2, wherein the main winding R1, the auxiliary winding R2 and the contactor coil R3 are connected between the input end L and the output end N in parallel, the auxiliary winding R2 and a capacitor are sequentially connected in series and then connected between the input end L and the output end N in parallel with the main winding R1 in parallel, the capacitor comprises an operating capacitor C1 and a starting capacitor C2, the operating capacitor C1 and the starting capacitor C2 are sequentially connected in parallel and then connected in series with the auxiliary winding R2, and the starting capacitor C2 and the contactor S2 are sequentially connected in series and then connected in parallel with the operating capacitor C1.

In the centrifugal control device for the single-phase motor, the contactor coil R3 and the centrifugal switch S1 for controlling the on-off of the contactor coil R3 are sequentially connected in series and then connected in parallel with the main winding R1 and the auxiliary winding R2.

Compared with the prior art, the centrifugal control device for the single-phase motor is additionally provided with the high-power contactor in the circuit, and the contact and the reed of the contactor are used for replacing the contact and the reed on the centrifugal switch, so that the service life of equipment is prolonged, and the equipment is safer and more reliable.

Drawings

Fig. 1 is a schematic circuit diagram of the product.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the centrifugal control device for the single-phase motor comprises an input end L and an output end N, a main winding R1, an auxiliary winding R2, a contactor coil R3, an operating capacitor C1, a starting capacitor C2, a centrifugal switch S1 and a contactor S2, wherein the main winding, the auxiliary winding and the contactor coil are connected in parallel between the input end L and the output end N, the auxiliary winding R2 is sequentially connected in series with a capacitor and then connected in parallel between the input end L and the output end N with the main winding R1, the capacitor comprises an operating capacitor C1 and a starting capacitor C2, the operating capacitor C1 and the starting capacitor C2 are sequentially connected in parallel and then connected in series with the auxiliary winding R2, and the starting capacitor C2 and the contactor S2 are sequentially connected in series and then connected in parallel with the operating capacitor C39. The contactor coil R3 and a centrifugal switch S1 for controlling the on-off of the contactor coil R3 are sequentially connected in series and then connected in parallel with the main winding R1 and the auxiliary winding R2.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A centrifugal control device of a single-phase motor is characterized by comprising an input end L, an output end N, a main winding R1, an auxiliary winding R2, a contactor coil R3, an operating capacitor C1, a starting capacitor C2, a centrifugal switch S1 and a contactor S2, wherein the main winding R1, the auxiliary winding R2 and the contactor coil R3 are connected between the input end L and the output end N in parallel, the auxiliary winding R2 and a capacitor are sequentially connected in series and then connected between the input end L and the output end N in parallel with the main winding R1 in parallel, the capacitor comprises an operating capacitor C1 and a starting capacitor C2, the operating capacitor C1 and the starting capacitor C2 are sequentially connected in parallel and then connected in series with the auxiliary winding R2, and the starting capacitor C2 and the contactor S2 are sequentially connected in series and then connected in parallel with the operating capacitor C1.

2. The centrifugal control device of the single-phase motor as claimed in claim 1, wherein the contactor coil R3 and the centrifugal switch S1 for controlling the on-off of the contactor coil R3 are sequentially connected in series and then connected in parallel with the main winding R1 and the auxiliary winding R2.