CN203482121U

CN203482121U - Electrically starting device of single-phase motor

Info

Publication number: CN203482121U
Application number: CN201320342791.7U
Authority: CN
Inventors: 王浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-17
Filing date: 2013-06-17
Publication date: 2014-03-12
Anticipated expiration: 2023-06-17

Abstract

The utility model discloses an electrically starting device of a single-phase motor, and the electrically starting device includes a control box. The electrically starting device of a single-phase motor is characterized in that a plurality of time relays and a plurality of intermediate relays are disposed in the control box, and the time relays are connected with an external power supply and correspond to the intermediate relays one to one; the time relays are electrically connected with corresponding intermediate relays, and upper contacts of the intermediate relays are electrically connected with starting capacitors; and the starting capacitors and the time relays are electrically connected with a junction box of the single-phase motor through conductive cables. The electrically starting device of a single-phase motor is simple in structure, easy to mount and small in volume; and a starting moment of the motor is greatly raised, the service life of a motor winding is greatly raised, and economic losses are reduced.

Description

The electrified starting device of a kind of monophase machine

Technical field

The utility model belongs to motor accessory field, specifically, relates to the electrified starting device of a kind of monophase machine.

Background technology

Along with civilian machinery develops fast, monophase machine demand also increases thereupon.And a lot of problems that existing starting device technology exists, such as winding coil easily burns, electric capacity blast, mechanicalness noise is large, and maching dimension is strict, and volume is large etc., is all urgent problem.

In existing technology, the start mode of 220V AC single phase motor be motor when static centrifugal switch be to connect, give electricity after starting capacitance participate in starting to work, when rotor speed reach rated value 70% to 80% time centrifugal switch just tripping automatically, starting capacitance is finished the work, and is disconnected.Starting winding does not participate in operation work, and motor continues action with operation winding coil.

With the motor of centrifugal switch, due to starting current be rated current 5-7 doubly, if motor can not start successfully within very short time, winding coil will burn very soon so.Cause the shortening in motor and electric capacity useful life.In addition, as the contact due to contact frequently can cause contact damage too fast, the easy adhesion in contact, easily produces electric spark, has very large potential safety hazard.

Summary of the invention

The technical problems to be solved in the utility model is to overcome above-mentioned defect, provide a kind of simple in structure, guarantee motor useful life and the electrified starting device of the monophase machine that noise is little, volume is little.

For addressing the above problem, the technical scheme that the utility model adopts is:

The electrified starting device of a kind of monophase machine, comprise control box body, it is characterized in that: in described control box body, be provided with some time relay and some auxiliary relays, the time relay connects external power source, and the time relay and auxiliary relay corresponding one by one; The described time relay is electrically connected to corresponding auxiliary relay, is provided with upper contact on auxiliary relay, and upper contact is electrically connected with start-up capacitance; Described start-up capacitance and the time relay are electrically connected to single-phase motor line box by conductive cable.

Preferred technical scheme, the number of the described time relay and auxiliary relay is one.

Preferred technical scheme, the described time relay is energization delay relay.

Owing to having adopted technique scheme, compared with prior art, the utility model the utility model is simple in structure, installs simple and easyly, and volume is little, has greatly improved the staring torque of motor, has also greatly improved the useful life of motor winding, has reduced economic loss.The processing dimension of machine shaft requires so not strict relatively, and motor assembling has easily reduced noise and also greatly improved production efficiency.Overall volume has relatively diminished and has been convenient to the installation of motor.

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail simultaneously.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of a kind of embodiment of the utility model;

Fig. 2 is the control principle block diagram of a kind of embodiment of the utility model.

Embodiment

Embodiment:

As shown in Figure 1, Figure 2, the electrified starting device of a kind of monophase machine, comprise control box body, in described control box body, be provided with the time relay and auxiliary relay, the time relay is connected to the external power source of 220V, and the time relay is electrically connected to auxiliary relay, is provided with upper contact on auxiliary relay, and upper contact is electrically connected with start-up capacitance; Described start-up capacitance and the time relay are electrically connected to single-phase motor line box by conductive cable.

In the present embodiment, the described time relay is energization delay relay.

The separated start-up capacitance of effectively start, by regulating time relay delay power to be used for driving auxiliary relay separated contacts, makes start-up capacitance reach the effect of startup when making motor cross heavy duty.

The utility model is simple in structure, installs simple and easyly, and volume is little, has greatly improved the staring torque of motor, has also greatly improved the useful life of motor winding, has reduced economic loss.The processing dimension of machine shaft requires so not strict relatively, and motor assembling has easily reduced noise and also greatly improved production efficiency.Overall volume has relatively diminished and has been convenient to the installation of motor.

The utility model is not limited to above-mentioned preferred implementation, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or akin technical scheme, all belong to protection range of the present utility model.

Claims

1. the electrified starting device of a monophase machine, comprise control box body, it is characterized in that: in described control box body, be provided with some time relay and some auxiliary relays, the time relay connects external power source, and the time relay and auxiliary relay corresponding one by one; The described time relay is electrically connected to corresponding auxiliary relay, is provided with upper contact on auxiliary relay, and upper contact is electrically connected with start-up capacitance; Described start-up capacitance and the time relay are electrically connected to single-phase motor line box by conductive cable.

2. according to the electrified starting device of the monophase machine described in claim 1, it is characterized in that: the number of the described time relay and auxiliary relay is one.

3. according to the electrified starting device of the monophase machine described in claim 2, it is characterized in that: the described time relay is energization delay relay.