CN201466925U

CN201466925U - Heater of motor stator

Info

Publication number: CN201466925U
Application number: CN2009201191443U
Authority: CN
Inventors: 管忠林
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-30
Filing date: 2009-04-30
Publication date: 2010-05-12
Anticipated expiration: 2019-04-30

Abstract

The utility model discloses a heater of a motor stator, which comprises an induction heating device and a control circuit, wherein the induction heating device comprises a winding, a winding iron core, two fixed iron cores and movable iron cores; the winding iron core is wrapped by the winding, the two fixed iron cores are arranged at both ends of the winding iron core, and the movable iron cores are connected with the two fixed iron cores and can move; the winding iron core is arranged in a base, the fixed iron cores arranged at both ends of the winding iron core protrude out of the base to form two bosses, and the two end faces of the tops of the two bosses are connected together by the movable iron cores which are arranged in a span way; and the control circuit provides high-frequency alternating current for the winding. The utility model overcomes the defect existing in the traditional heating mode of the stator. The heater has the characteristics of low energy consumption, high working efficiency, uniform heating of the stator, cleanness and environmental protection and is beneficial to improving the environment and ensuring the physical health of working personnel.

Description

A kind of motor stator heater

Technical field

The utility model relates to a kind of heater, particularly a kind of motor stator heater.

Background technology

Motor stator and rotor belong to little clearance fit relationship, and fit-up gap between the two is very little, are difficult to directly assemble, and in the middle of reality, for guaranteeing assembly quality, improve efficiency of assembling, generally stator are preheated to handle and assemble afterwards again.At present, traditional heating means have a variety of, but all there is certain defective in the whole bag of tricks, heat as the employing instrument that freezes, and can cause stator deformability; The heating of employing stove fire, the stator each several part can be heated irregular; Employing oil bath heating can make stator pollute because of oil is unclean; Adopt oven heat, too time-consuming.

The utility model content

For overcoming the problems referred to above, the utility model provides a kind of motor stator heater, and it has, and energy consumption is low, high efficiency, stator are heated evenly, the characteristics of clean environment firendly, helps improving environment and guarantees that the staff's is healthy.

For achieving the above object, the utility model is by the following technical solutions:

A kind of stator heater, it is characterized in that: comprise induction heating equipment and control circuit, wherein induction heating equipment is made up of the wound core of coiling, coiling parcel, the movably moving iron core that is arranged on two fixed cores at wound core two and connects two fixed cores; Described wound core is arranged in the middle of the base, and the fixed core that is arranged on wound core two protrudes in base and forms two boss, and the both ends of the surface at two boss tops are by linking together across the moving iron core that is provided with; Described control circuit provides the alternating current of high frequency for coiling.

Above-mentioned moving iron core one end and a fixed core end face are hinged, and the other end pastes mutually with another fixed core end face freedom.

Above-mentioned control circuit also comprises a temperature controller.

Above-mentioned control circuit also comprises a time controller.

In use, the free end that rotates moving iron core is to the fixed core outside, and stator is inserted in moving iron core, again moving iron core is gone back to original position subsequently, at this moment, the lower surface, two ends of moving iron core fully contacts with the upper surface of two fixed cores respectively, makes wound core → fixed core → moving iron core → fixed core → wound core form a heating circuit.At this, coiling is equivalent to the one-level coil, and heated stator is equivalent to secondary coil.When having alternating current to flow through in the coiling as the one-level coil, the alternating magnetic field of its generation will make as the induced current that produces alternation in the stator of secondary coil.

At work, when in coiling, leading to the alternating current of high frequency, will produce the induced field of alternation, the alternation magnetic force line cutting stator of induced field and produce the eddy current of alternation in stator interior, eddy current makes the molecule high speed random motion of stator, intermolecularly run foul of each other, rub and produce heat energy, thereby make stator heating at a high speed voluntarily itself, reach the purpose of stator heating.

At this, for realizing real-time control, be provided with temperature controller and time controller in the control circuit, promptly cut off circuit in case temperature or heating time reach set point, avoid temperature too high and damage stator surface hardness and inherent quality.

The utility model quick heating, heat efficiency height, heating time be traditional heating mode 1/4th less than, the flames of anger when heating simultaneously, no flue dust, no pernicious gas, surrounding environment is not produced thermal radiation, help the healthy of enhancement of environment and staff, in addition, stator heats by the heating of self, and it is very even to be heated, and helps improving the assembly quality with assembled shaft.

Description of drawings

Fig. 1, perspective view of the present utility model;

Fig. 2, fundamental diagram of the present utility model.

Embodiment

As illustrated in fig. 1 and 2, a kind of stator heater, comprise induction heating equipment and control circuit 1, wherein induction heating equipment is made up of the wound core 22 of coiling 21, coiling parcel, the movably moving iron core 25 that is arranged on two fixed

cores

23,24 at wound core two and connects two fixed cores.

Described wound core 22 is arranged in the middle of the base 3, the fixed

core

23,24 that is arranged on wound core two protrudes in base and forms two boss, the both ends of the surface at two boss tops are by linking together across the moving iron core 25 that is provided with, at this, moving iron core 25 1 ends and fixed core 23 end faces are hinged 231, move iron core 25 other ends and paste mutually with other fixed core 24 end face freedom.Described control circuit 1 is 21 alternating currents that high frequency is provided that wind the line.

As shown in Figure 2, in use, the free end that rotates moving iron core 25 is to fixed core 24 outsides, and stator 4 is inserted in moving iron core 25, again moving iron core 25 is gone back to original position subsequently, at this moment, the lower surface, two ends of moving iron core 25 fully contacts with the upper surface of two

fixed cores

23,24 respectively, makes wound core 22 → fixed core 23 → moving iron core 25 → fixed core 24 → wound core 23 form a heating circuit.At this, coiling 21 is equivalent to the one-level coil, and heated stator 4 is equivalent to secondary coil.When having alternating current to flow through in the coiling 21 as the one-level coil, the alternating magnetic field of its generation will make the induced current as generation alternation in the stator 4 of secondary coil.

At work, when in coiling 21, leading to the alternating current of high frequency, will produce the induced field of alternation, the alternation magnetic line of force 5 cutting stators 4 of induced field and produce the electric current of alternation in stator interior, be eddy current 41, eddy current 41 makes the molecule high speed random motion of stator 4, and molecule runs foul of each other, rubs and produces heat energy, stator 4 itself is generated heat at a high speed voluntarily, thereby reach the purpose of stator heating.

At this, for realizing real-time control, be provided with temperature controller 11 and time controller 12 in the control circuit 1, promptly cut off circuit in case temperature or heating time reach set point, avoid temperature too high and damage stator 4 case hardnesses and inherent quality.

Claims

1. motor stator heater, it is characterized in that: comprise induction heating equipment and control circuit, wherein induction heating equipment is made up of the wound core of coiling, coiling parcel, the movably moving iron core that is arranged on two fixed cores at wound core two and connects two fixed cores; Described wound core is arranged in the middle of the base, and the fixed core that is arranged on wound core two protrudes in base and forms two boss, and the both ends of the surface at two boss tops are by linking together across the moving iron core that is provided with; Described control circuit provides the alternating current of high frequency for coiling.

2. a kind of motor stator heater as claimed in claim 1 is characterized in that: described moving iron core one end and a fixed core end face are hinged, and the other end pastes mutually with another fixed core end face freedom.

3. a kind of motor stator heater as claimed in claim 1, it is characterized in that: described control circuit also comprises a temperature controller.

4. a kind of motor stator heater as claimed in claim 1 is characterized in that: described control circuit also comprises a time controller.