CN103428929A - Induction heater for unwinding motor stators - Google Patents
Induction heater for unwinding motor stators Download PDFInfo
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- CN103428929A CN103428929A CN2013103383970A CN201310338397A CN103428929A CN 103428929 A CN103428929 A CN 103428929A CN 2013103383970 A CN2013103383970 A CN 2013103383970A CN 201310338397 A CN201310338397 A CN 201310338397A CN 103428929 A CN103428929 A CN 103428929A
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- silicon steel
- heating
- steel core
- induction heater
- high frequency
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- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to an induction heater for unwinding motor stators. The induction heater comprises a heating control device connected with a high-frequency power generator, the high-frequency power generator is connected with a power-frequency power supply, high-frequency power outputted by the high-frequency power generator is connected with induction coils wound on fixed silicon steel cores, movable silicon steel cores are placed on the two columnar fixed silicon steel cores, an equipment seat is arranged below the fixed silicon steel cores, a supporting surface is arranged on the equipment seat, and temperature measurement elements are arranged on two sides of the fixed silicon steel cores for placing the motor stators and connected with the heating control device through leads. Heating time can be controlled, and a heating environment is safe. According to information feedback of the temperature measurement elements, when the set heating temperature is reached, the heating control device automatically cuts off a heating power supply and gives an alarm to inform workers of finishing heating of the stators. The induction heater is controllable in temperature, uniform in heating and free from contamination.
Description
Technical field
The present invention relates to the take out stitches induction heater of use of a kind of motor stator, be specifically designed to motor and build industry, when the coil of stator of motor that need are built carries out dismantling operation, need to be heated motor stator.
Background technology
More and more higher along with the industrialization development degree, motor is as the power-equipment of producing, and the scale of use is increasing, and corresponding motor is built industry and also is developed rapidly.Motor build process, the dismounting of old stator coil, be the workload maximum, an also maximum job of difficulty.Because, flooded the stator coil of insulating varnish, tightly be embedded in stator slot, need be heated, softening insulating varnish could be extracted wire in stator slot.Conventional method generally all adopts and burns the way of heating, but the method has a lot of drawbacks.At first, temperature is wayward, once too high, larger to the iron core silicon-steel sheet damage; Secondly, heat inhomogeneously, local temperature is too high, but local insulating varnish is also softening; The 3rd, contaminated environment, wood, as combustion medium, also can ignite insulating varnish simultaneously, produces a large amount of dense smoke and penetrating odor.As adopt the drying room heating method more inadvisable, and warm-up time is long, and grid electricity fee cost is high.
Summary of the invention
The present invention is in order to solve the problems of the technologies described above, the induction heater that provides a kind of motor stator to take out stitches use, and it can control heating-up temperature automatically, and has warning function.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: the present invention includes heating control apparatus, heating control apparatus connects the high frequency electric source generator, the high frequency electric source generator is connected with power frequency supply, the high frequency electric source of high frequency electric source generator output is connected with the induction coil on being wound on fixing silicon steel core, put movable silicon steel core on the fixedly silicon steel core of two column types, fixedly the silicon steel core below is provided with the equipment seat, the equipment seat is provided with supporting surface, fixedly the both sides of silicon steel core placement motor stator are provided with temperature element, temperature element is connected with heating control apparatus.
As preferably, the supporting surface on described equipment seat is formed by iron plate the folding of two open loops, and heatproof insulating material is inlayed in open loop place.
As preferably, described induction coil and fixing insulation liner material between silicon steel core.
Warm-up time is controlled, the Environmental security of heating.According to the information feedback of temperature element, when reaching the heating-up temperature set, automatic control loop cuts off heating power supply automatically,, gives the alarm simultaneously, informs that staff's stator has heated complete.In order to adapt to the heat request that adds of different motors, be provided with the automatic control functions such as heating current size, heating-up temperature height, temperature retention time setting on the control operation platform, meet the real work requirement.
The invention has the beneficial effects as follows: can be set heating time, heating-up temperature and the heating current size of motor stator, automatically control heating-up temperature, heat automatic alarm, temperature is controlled, and homogeneous heating is not polluted.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
1. heating control apparatus in figure, 2. high frequency electric source generator, 3. power frequency supply, 5. induction coil, 6. fixing silicon steel core, 7. movable silicon steel core, 8. motor stator, 9. supporting surface, 10. equipment seat, 11. temperature elements.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the take out stitches induction heater of use of a kind of motor stator of the present embodiment, as shown in Figure 1, comprise heating control apparatus 1, heating control apparatus 1 connects high frequency electric source generator 2, high frequency electric source generator 2 is connected with power frequency supply 3, the high frequency electric source of high frequency electric source generator 2 output is connected with the induction coil 5 on being wound on fixing silicon steel core 6, induction coil 5 and fixing 6 insulation liner materials of silicon steel core, put movable silicon steel core 7 on the fixedly silicon steel core 6 of two column types, fixedly there is equipment seat 10 silicon steel core 6 belows, supporting surface 9 is arranged on equipment seat 10, supporting surface 9 is formed by iron plate the folding of two open loops, heatproof insulating material is inlayed in open loop place, there is temperature element 11 both sides that fixedly silicon steel core 6 is placed motor stator 8, temperature element 11 is connected with heating control apparatus 1 by wire.
Heating control apparatus is the control system of a whole set of firing equipment, comprising: high frequency electric source generator system, induction heater control system and automatic alarm and protection system.The high frequency electric source generator, be the heating preposition equipment that improves the efficiency of heating surface, saves energy, commutation system, inversion system, consists of, and by the 50Hz power frequency supply, by rectification, inversion, converts the alternating current of 25000Hz to, supplies with induction coil and carry out induction heating.Movable silicon steel core is to facilitate motor stator to be heated to hang in and hang out from the column of fixing silicon steel core.Supporting surface is designed to open loop, and purpose is to prevent that this platform from producing closed magnetic circuit and heating platform.The equipment seat is more thick and heavy, to guarantee the stability of equipment.Temperature element detects in real time the temperature of heated motor stator and temperature signal is fed back to heating control apparatus, and the temperature signal feedback line of temperature element need adopt the three-core shielding line.
The present invention develops according to the electromagnetic eddy heating principle.Adopt two column type basket formula magnetic circuits, whole magnetic circuit is built up by the magnetic silicon steel sheet of the high permeability without orientation.Wherein on a post around on insulated conductor, as induction coil, for generation of magnetic flux; Place motor stator to be heated on another post, the bottom platform of shelving stator is that insulating material is made.During work, high frequency electric source is passed into to induction coil, produce closed magnetic flux, this magnetic flux is because passing the stator core endoporus, stator core is produced to high frequency induction current, because stator core is also the loop of a closure, will on stator core, produce eddy current, the thermal effect of eddy current will heat stator core very soon, according to the information feedback of temperature element, when reaching the heating-up temperature set, the heating control apparatus automatic control loop cuts off heating power supply automatically,, give the alarm simultaneously, inform that staff's stator has heated complete.
Claims (3)
1. the motor stator induction heater of use of taking out stitches, it is characterized in that comprising heating control apparatus, heating control apparatus connects the high frequency electric source generator, the high frequency electric source generator is connected with power frequency supply, the high frequency electric source of high frequency electric source generator output is connected with the induction coil on being wound on fixing silicon steel core, put movable silicon steel core on the fixedly silicon steel core of two column types, fixedly the silicon steel core below is provided with the equipment seat, the equipment seat is provided with supporting surface, fixedly the both sides of silicon steel core placement motor stator are provided with temperature element, temperature element is connected with heating control apparatus.
2. a kind of motor stator according to claim 1 induction heater of use of taking out stitches, is characterized in that supporting surface on described equipment seat is formed by iron plate the folding of two open loops, and heatproof insulating material is inlayed in open loop place.
3. a kind of motor stator according to claim 1 and 2 induction heater of use of taking out stitches, is characterized in that described induction coil and fixing insulation liner material between silicon steel core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310338397.0A CN103428929B (en) | 2013-08-06 | 2013-08-06 | Induction heater for unwinding motor stators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310338397.0A CN103428929B (en) | 2013-08-06 | 2013-08-06 | Induction heater for unwinding motor stators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103428929A true CN103428929A (en) | 2013-12-04 |
| CN103428929B CN103428929B (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310338397.0A Active CN103428929B (en) | 2013-08-06 | 2013-08-06 | Induction heater for unwinding motor stators |
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| Country | Link |
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| CN (1) | CN103428929B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661386A (en) * | 2019-10-22 | 2020-01-07 | 永济德耐电气机械有限公司 | Efficient and environment-friendly motor wire slot residue cleaning method |
| CN113390123A (en) * | 2021-06-04 | 2021-09-14 | 南京邮电大学 | Heat storage electric heating device adopting power frequency induction heating and manufacturing method |
| CN115102338A (en) * | 2022-08-23 | 2022-09-23 | 秦皇岛民昌电气设备有限公司 | Motor winding disassembling method and heating coil used by same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424412Y (en) * | 2000-03-09 | 2001-03-21 | 高海生 | Induction heating instant electrical water heater |
| CN2429777Y (en) * | 2000-06-21 | 2001-05-09 | 秦光明 | HF induction heating boiler at normal voltage |
| CN101764471A (en) * | 2009-12-18 | 2010-06-30 | 中国铝业股份有限公司 | Vacuum-varnished motor winding unwinder |
| CN203399328U (en) * | 2013-08-06 | 2014-01-15 | 杭州富春江水电设备有限公司 | Induction heater for clearing motor stator |
-
2013
- 2013-08-06 CN CN201310338397.0A patent/CN103428929B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424412Y (en) * | 2000-03-09 | 2001-03-21 | 高海生 | Induction heating instant electrical water heater |
| CN2429777Y (en) * | 2000-06-21 | 2001-05-09 | 秦光明 | HF induction heating boiler at normal voltage |
| CN101764471A (en) * | 2009-12-18 | 2010-06-30 | 中国铝业股份有限公司 | Vacuum-varnished motor winding unwinder |
| CN203399328U (en) * | 2013-08-06 | 2014-01-15 | 杭州富春江水电设备有限公司 | Induction heater for clearing motor stator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661386A (en) * | 2019-10-22 | 2020-01-07 | 永济德耐电气机械有限公司 | Efficient and environment-friendly motor wire slot residue cleaning method |
| CN113390123A (en) * | 2021-06-04 | 2021-09-14 | 南京邮电大学 | Heat storage electric heating device adopting power frequency induction heating and manufacturing method |
| CN115102338A (en) * | 2022-08-23 | 2022-09-23 | 秦皇岛民昌电气设备有限公司 | Motor winding disassembling method and heating coil used by same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103428929B (en) | 2015-07-22 |
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