CN2195155Y

CN2195155Y - Long life motor

Info

Publication number: CN2195155Y
Application number: CN94216134U
Authority: CN
Inventors: 李金星
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-28
Filing date: 1994-06-28
Publication date: 1995-04-19
Anticipated expiration: 2004-06-28

Abstract

The utility model relates to a safe long-life motor, which aims at controlling the motor to work under normal temperature and extending the service life of the motor. The utility model is characterized in that a metal wire L is fixed in the motor by a screw, one end of the metal wire L is connected with a pointer A and a wiring terminal e in a protector H, and the end of the metal wire L can change with the temperature. The utility model has the advantages that the occurrence of the phenomenon of motor burning is eliminated thoroughly; the utility model has the effects of voltage stabilization, arc extinguishing, safe operation, easy use, etc. The utility model is suitable for two-phase and three-phase motors. Moreover, the utility model has the advantages of less investment and convenient installation.

Description

Long life motor

The utility model relates to a kind of novel motor, refers to a kind of safe Yongshou motor especially.

In background technology, motor generally adopts the installation insurance silk to eliminate the phenomenon of burning machine at present, yet in practice, fuse can only be eliminated the excessive burning machine that causes of outer end voltage jump electric current, for because machine operation overlong time internal heat is accumulated too much and since the excessive motor of load when stopping operating electric energy whole moments change into heat energy, be to solve with these two kinds of caused motor coils of form by burning.In real work, this burning machine phenomenon happens occasionally, and cuts off the electricity supply as untimely, will cause fire, and its consequence is more hardly imaginable.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art, and develops a kind of Yongshou motor, prevents that motor coil from being burnt, and warning in time stops machine operation automatically, reaches to prolong the motor purpose in useful life.

Technical solution of the present utility model is as follows:

In motor D, be screwed its length and resistance arc or spirality metal silk L with variable temperaturesization, pointer A among the movable client link protector H of wire L, and join with current temperature table binding post e.

Technical solution of the present utility model also comprises:

In protector H, the pointer A top that can swing links with the joint a that has a spring, and links to each other with the temperature dish through alarm speaker Y, does joint a that conducting and disconnection match and b outer end as the motor overheating control output end.

Description of drawings of the present utility model is as follows:

Fig. 1 is whole motor and control circuit schematic diagram.

Fig. 2 is structure of the present utility model and fundamental diagram.

Be that the utility model adjoint is described in further detail below: referring to Fig. 1; three-phase alternating current connects control machine operation circuit and motor D through Three-phase knife switch K and fuse RD; in control machine operation circuit; A.C. contactor JC holds normally open contact JC4 in parallel and starting button QA; through stopping button TA series connection protector H; normally open contact JC1, JC2 and the JC3 of A.C. contactor JC are connected on the motor D input; the input of control motor overheating protector H connects the wire L in the motor D, and output C and d connect power supply and control machine operation circuit respectively.Referring to shown in Figure 2; operation principle of the present utility model is like this; on the cross section of motor D; wire L one end with its vary in length of temperature is fixing with screw or welding; curved metal silk L one end links to each other with pointer A rear end among the protector H through brace; by protector H is the current temperature table, so wire L two ends are connected among ammeter binding post e and the f.Pointer A is assemblied in the protector H dial plate O point with pin; pointer A top links with the joint a that has spring; also link to each other with the temperature dish through power supply V, alarm speaker Y, arc-shaped joint or parallel joint a and b match as conducting and disconnection, and its outer end c and d are as the motor overheating control output end.

Whole operation principle is like this: when motor D under normal circumstances, pointer A under spring action, be partial to the right, joint a and b conducting, when the staff presses starting button QA, stop button TA is closed and normally closed thereupon simultaneously, A.C. contactor JC conducting work, and normally open contact JC1～JC4 connects, button QA often lifts automatically and opens, when motor D is overheated, wire L expanded by heating, pointer A is the center of circle with the O point, counter-clockwise swing, its arrow indicated temperature higher point, when reaching the alarm temperature spot, loud speaker Y gives the alarm, after alarm is sent, unattended still within a certain period of time, then pointer A continues to right-hand member deflection, and arc contact a and b are broken away from, output c and d line disconnect, A.C. contactor JC quits work, normally open contact JC1, JC2 and JC3 set back, and motor D quits work, both prevent motor overheating, also played the arc extinguishing effect.In addition, when temperature in the motor D raises, wire not only is out of shape, and the resistance increase, by the corresponding minimizing of the electric current of ammeter, pointer A deflection left, when temperature was higher, the Ampere force in the ammeter deflects into pointer A was enough to allow joint a and b disconnect, and motor D quits work, make motor D play two-way control action like this, promptly control the overheated automatic outage of motor D by deformation and the resistance variations of wire L.

Advantage of the present utility model and effect are as follows:

Can effectively control motor and work under normal temperature, the phenomenon of thoroughly avoiding burning machine takes place. Also have voltage stabilizing, arc extinguishing, handling safety, effect easy to use. Be applicable to various two-phases, three phase electric machine, and cost is low, changes easy to assembly.

Claims

1, the Yongshou motor comprises motor D, it is characterized in that: at its length of motor D internal fixation and resistance wire L with variable temperaturesization, and pointer A among the movable client link protector H of wire L, and join with current temperature table binding post e.

2, Yongshou according to claim 1 motor; it is characterized in that: in protector H; pointer A that can swing and the joint a that has a spring link, and link to each other with the temperature dish through alarm speaker Y, do joint a that conducting and disconnection match and b outer end as the motor overheating control output end.