CN101841197A - Insulating structure of motor stator winding - Google Patents
Insulating structure of motor stator winding Download PDFInfo
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- CN101841197A CN101841197A CN200910068183A CN200910068183A CN101841197A CN 101841197 A CN101841197 A CN 101841197A CN 200910068183 A CN200910068183 A CN 200910068183A CN 200910068183 A CN200910068183 A CN 200910068183A CN 101841197 A CN101841197 A CN 101841197A
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- stator
- winding coil
- intercell connector
- motor
- stator slot
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention relates to an insulating structure of a motor stator winding, which is inserted into a stator slot on a motor stator iron core, partitions a main winding coil and a secondary winding coil and prevents the generation of short circuit between the coils. The insulating structure comprises interphase insulating sheets, a connecting strip and an insulating cover sheet, wherein the insulating cover sheet and the connecting strip are integrated; the part of the connecting strip, connected in the stator slot, extends to both sides and is bent into the insulating cover sheet for partitioning the main winding coil and the secondary winding coil; and the connecting strip in the stator slot not only can connect the same interphase insulating sheets at the upper side and the lower side of the outer end of the stator iron core, but also can partition the main winding coil and the secondary winding coil and prevent electric leakage generation between the main winding coil and the secondary winding coil. When the two functions of connection and insulation are ensured, the quantity of parts is reduced; and the space occupied by the connecting strip and the insulating cover sheet in the stator slot is just equivalent to the space occupied by the single insulating cover sheet in the prior art, and thus the slot filling rate in the stator slot is reduced, the quantity of a motor is easy for guarantee, and the reject ratio of the production of the motor is reduced.
Description
Technical field
The invention belongs to the technical field of motor, the intercell connector that is specifically related between a kind of interphase insulating sheet is set to one with the insulation cover plate, has reduced the copper factor of stator slot, thereby has reduced the insulation system of the motor stator winding of electrical fault rate.
Technical background
Motor is generally the core drive source of most of household electronic products such as compressor, washing machine, electric fan.Motor mainly is made of stator and rotor two parts, and its stator has independently loop construction, and permanent-magnet steel is arranged in the rotor.Stator and rotor are made of the iron core that silicon steel plate stacking forms respectively.It is cylindric that stator is, and circle upwards is provided with stator slot in it.Rotor is cylindric, and rotor directly is pressed on the bent axle and inserts in the stator cylinder cavity, has the space to be separated by between stator and rotor.The winding that the high strength enamelled wire coiled is arranged on the stator, stator winding is connected with external power, outside source current by the time this electric current and the rotor permanent-magnet steel magnetic field interaction that produced, produce electromagnetic torque and drive the rotor rotation.
Fig. 1 is the external structure schematic diagram of the motor stator of prior art; Fig. 2 is the structural representation of interphase insulating sheet and intercell connector in the insulation system of motor stator winding of prior art; Fig. 3 is the structural representation of insulation cover plate in the insulation system of motor stator winding of prior art; Fig. 4 is the schematic cross-section of insulation system in stator slot of the motor stator winding of prior art.
As shown in Figures 1 to 4, stator winding is by constituting as the main winding of running winding coil and as the auxiliary winding coil that starts winding coil.Winding coil is to insert an end of coil on the circle in two stator slots in a plurality of stator slots 2 and insert the other end in stator core 1 in other two stator slots, is wound with a plurality of winding coils in stator core.Therefore, be provided with the upper and lower of winding coil in the top and bottom of stator core, and be fixed with the top and bottom of fixed part in stator core.
That is, winding coil is divided into the upper end winding coil that is provided with on periphery unshakable in one's determination, the lower end winding coil that is provided with below periphery unshakable in one's determination and be inserted between a plurality of stator slots and connect the winding coil that is connected of upper end winding coil and lower end winding coil.
In order to prevent short circuit between main winding 3 and the auxiliary winding coil 4, burn out motor, between the major-minor winding coil, to separate with insulating material.Insulate in order to make between stator chip and the lead, the unlikely electric leakage is provided with insulating trip between stator slot and lead.
The insulation system of motor stator winding of the prior art is inserted in the stator slot 2 on the electric machine stator iron, and the major-minor winding coil is separated, prevent to be short-circuited between coil, comprise: interphase insulating sheet 5, be arranged on the outer both ends of stator core, make between the end of winding coil and insulate; Intercell connector 6 is arranged in the stator slot, and the interphase insulating sheet that will be positioned at the stator core two ends connects; Insulation cover plate 7 is arranged on adjacent setting with intercell connector in the stator slot, and the insulation of the major-minor winding coil in the stator slot is separated.
But, there is following problem in the prior art:
In the insulation system of the motor stator winding of prior art, separate with the insulation cover plate between the major-minor winding coil in the stator slot, and the insulation cover plate is close to the intercell connector setting, intercell connector has only played the effect that connects the insulation cover plate in motor, but intercell connector has still occupied segment space in stator slot as can be seen in schematic cross-section, this part space approximately can add 3 circle copper cash, therefore intercell connector has increased the tankful rate of wire casing in stator slot, thereby the product fraction defective that causes motor easily raises.Interphase insulating sheet is excessive at the inward flange angle of inclination of the part of stator core downside in addition, causes in the insulation effect of the position, major-minor winding coil joint portion of stator core downside badly easily, can cause that equally the product of motor is bad.
Summary of the invention
The present invention provides the intercell connector between a kind of interphase insulating sheet to be set to one with the insulation cover plate for solving the technical problem that exists in the prior art, reduce the copper factor of stator slot, thereby reduced the insulation system of the motor stator winding of electrical fault rate.
The technical scheme that the present invention takes for the technical problem that exists in the solution prior art is:
The insulation system of motor stator winding of the present invention is inserted in the stator slot on the electric machine stator iron, and the major-minor winding coil is separated, prevent to be short-circuited between coil, comprise: interphase insulating sheet, be arranged on the outer both ends of stator core, make between the end of winding coil and insulate; Intercell connector is arranged in the stator slot, and the interphase insulating sheet that will be positioned at the stator core two ends connects; The insulation cover plate, be arranged in the stator slot, the insulation of major-minor winding coil in the stator slot is separated, and above-mentioned insulation cover plate and intercell connector are formed as one, and the part of intercell connector in stator slot is to the both sides extension and be bent to form the insulation cover plate that separates the major-minor winding coil.
The length of described insulation cover plate and the length of stator slot are that the height of stator core is consistent.
Described interphase insulating sheet and intercell connector adopt unlike material to constitute, and the selected material of intercell connector has stronger deformation nature than the material of interphase insulating sheet.
Described interphase insulating sheet and intercell connector are by bonding fixed with each other.
Described interphase insulating sheet and intercell connector are fixed with each other by hot pressing.
Described interphase insulating sheet is divided into upper end insulating trip that is arranged on the stator core upper end and the lower end insulating trip that is arranged on the stator core lower end, the external margin of a side that fixes with intercell connector in the insulating trip of upper end tilts upward, and the external margin of a side that fixes with intercell connector in the insulating trip of lower end keeps vertical with the direction that is provided with of intercell connector.
Advantage and good effect that the present invention has are:
In the insulation system of motor stator winding of the present invention, the part of intercell connector in stator slot is to the both sides extension and be bent to form the insulation cover plate that separates the major-minor winding coil, insulation cover plate and intercell connector are formed as one, intercell connector had both played the effect of the interphase insulating sheet that connects stator core outer end upper and lower sides in stator slot, also main winding and auxiliary winding coil are separated simultaneously, avoided leaking electricity between the two.When having guaranteed the connection and two functions that insulate, reduced the quantity of parts, intercell connector and the occupied space of insulation cover plate only are equivalent to the occupied space of single insulating cover plate in the prior art in stator slot, therefore reduce the copper factor in the stator slot, be more prone to guarantee the quality of motor, thereby reduced the fraction defective that motor is produced, production cost of products and operating cost have again been reduced, make staff's required step when the assembling of motor stator still less improve the production efficiency of motor integral body.In addition, the inboard less angle that tilts of the outward flange of the interphase insulating sheet of stator core downside increases the insulating capacity between the major-minor winding coil in the outside, stator lower end, has reduced the product fraction defective during motor is produced equally.
Description of drawings
Fig. 1 is the external structure schematic diagram of the motor stator of prior art;
Fig. 2 is the structural representation of interphase insulating sheet and intercell connector in the insulation system of motor stator winding of prior art;
Fig. 3 is the structural representation of insulation cover plate in the insulation system of motor stator winding of prior art;
Fig. 4 is the schematic cross-section of insulation system in stator slot of the motor stator winding of prior art;
Fig. 5 is the structural representation of insulation cover plate in the insulation system of motor stator winding of the present invention;
Fig. 6 is the schematic cross-section of insulation system in stator slot of motor stator winding of the present invention.
Embodiment
It is following that the present invention is described in detail with reference to drawings and Examples:
Fig. 5 is the structural representation of insulation cover plate in the insulation system of motor stator winding of the present invention; Fig. 6 is the schematic cross-section of insulation system in stator slot of motor stator winding of the present invention.
Extremely shown in Figure 6 as Fig. 5, the insulation system of motor stator winding of the present invention, be inserted in the stator slot 2 on the electric machine stator iron, the major-minor winding coil is separated, prevent to be short-circuited between coil, interphase insulating sheet 5 is arranged on the outer both ends of stator core, makes between the end of winding coil to insulate; Intercell connector 6 is arranged in the stator slot, and the interphase insulating sheet that will be positioned at the stator core two ends connects; Insulation cover plate 7 is arranged in the stator slot, the insulation of major-minor winding coil in the stator slot is separated, above-mentioned insulation cover plate and intercell connector are formed as one, the part of intercell connector in stator slot is to the both sides extension and be bent to form the insulation cover plate that separates the major-minor winding coil, partly have enough width to guarantee to cover the contact-making surface between the main and sub-coil winding to the insulation cover plate that extension goes out, prevent electric leakage between the two.The length of the insulation cover plate that forms on intercell connector and the length of stator slot are that the height of stator core is consistent, and make the main winding and the auxiliary winding coil that are arranged in the stator slot separated fully
Interphase insulating sheet and intercell connector can adopt unlike material to constitute, the selected material of intercell connector has stronger deformation nature than the material of interphase insulating sheet, make intercell connector in the stator slot and insulation cover plate when stator core is installed, can and the deformation that necessity takes place in the position be set with the set-up mode of winding coil, guarantee that when guaranteeing to separate the major-minor winding coil fully fracture and damaged can not take place intercell connector, reduce the product fraction defective, thereby improved the stability of motor product.
Be the fastness of the insulation system that guarantees motor stator winding, above-mentioned interphase insulating sheet and intercell connector can be bonding fixed with each other by the glue class, and while interphase insulating sheet and intercell connector also can be fixed with each other by hot pressing.
In the insulation system of motor stator winding of the present invention, the part of intercell connector in stator slot is to the both sides extension and be bent to form the insulation cover plate that separates the major-minor winding coil, insulating lid and intercell connector are formed as one, intercell connector had both played the effect of the interphase insulating sheet that connects stator core outer end upper and lower sides in stator slot, also main winding and auxiliary winding coil are separated simultaneously, avoided leaking electricity between the two.When having guaranteed the connection and two functions that insulate, reduced the quantity of parts, intercell connector and the occupied space of insulation cover plate only are equivalent to the occupied space of single insulating cover plate in the prior art in stator slot, therefore reduce the copper factor in the stator slot, be more prone to guarantee the quality of motor, thereby reduced the fraction defective that motor is produced, production cost of products and operating cost have again been reduced, make staff's required step when the assembling of motor stator still less improve the production efficiency of motor integral body.In addition, the inboard less angle that tilts of the outward flange of the interphase insulating sheet of stator core downside increases the insulating capacity between the major-minor winding coil in the outside, stator lower end, has reduced the product fraction defective during motor is produced equally.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (6)
1. the insulation system of a motor stator winding is inserted in the stator slot on the electric machine stator iron, and the major-minor winding coil is separated, prevent to be short-circuited between coil, comprise: interphase insulating sheet, be arranged on the outer both ends of stator core, make between the end of winding coil and insulate; Intercell connector is arranged in the stator slot, and the interphase insulating sheet that will be positioned at the stator core two ends connects; The insulation cover plate, be arranged in the stator slot, the insulation of major-minor winding coil in the stator slot is separated, and it is characterized in that: above-mentioned insulation cover plate and intercell connector are formed as one, and the part of intercell connector in stator slot is to the both sides extension and be bent to form the insulation cover plate that separates the major-minor winding coil.
2. the insulation system of motor stator winding according to claim 1 is characterized in that: the length of insulation cover plate and the length of stator slot are that the height of stator core is consistent.
3. the insulation system of motor stator winding according to claim 1 is characterized in that: interphase insulating sheet and intercell connector adopt unlike material to constitute, and the selected material of intercell connector has stronger deformation nature than the material of interphase insulating sheet.
4. the insulation system of motor stator winding according to claim 3 is characterized in that: interphase insulating sheet and intercell connector are by bonding fixed with each other.
5. the insulation system of motor stator winding according to claim 3, it is characterized in that: interphase insulating sheet and intercell connector are fixed with each other by hot pressing.
6. the insulation system of motor stator winding according to claim 1, it is characterized in that: interphase insulating sheet is divided into upper end insulating trip that is arranged on the stator core upper end and the lower end insulating trip that is arranged on the stator core lower end, the external margin of a side that fixes with intercell connector in the insulating trip of upper end tilts upward, and the external margin of a side that fixes with intercell connector in the insulating trip of lower end keeps vertical with the direction that is provided with of intercell connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068183A CN101841197A (en) | 2009-03-19 | 2009-03-19 | Insulating structure of motor stator winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910068183A CN101841197A (en) | 2009-03-19 | 2009-03-19 | Insulating structure of motor stator winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101841197A true CN101841197A (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910068183A Pending CN101841197A (en) | 2009-03-19 | 2009-03-19 | Insulating structure of motor stator winding |
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| Country | Link |
|---|---|
| CN (1) | CN101841197A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624124A (en) * | 2011-01-26 | 2012-08-01 | 通用汽车环球科技运作有限责任公司 | Stator assembly having a phase-to-phase insulator, and a method of assemblying a stator assembly |
-
2009
- 2009-03-19 CN CN200910068183A patent/CN101841197A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624124A (en) * | 2011-01-26 | 2012-08-01 | 通用汽车环球科技运作有限责任公司 | Stator assembly having a phase-to-phase insulator, and a method of assemblying a stator assembly |
| CN102624124B (en) * | 2011-01-26 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Stator assembly having a phase-to-phase insulator, and method for assemblying a stator assembly |
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Application publication date: 20100922 |