CN202550743U - Fixing structure of shielding pump motor stator winding notch - Google Patents
Fixing structure of shielding pump motor stator winding notch Download PDFInfo
- Publication number
- CN202550743U CN202550743U CN 201220230160 CN201220230160U CN202550743U CN 202550743 U CN202550743 U CN 202550743U CN 201220230160 CN201220230160 CN 201220230160 CN 201220230160 U CN201220230160 U CN 201220230160U CN 202550743 U CN202550743 U CN 202550743U
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- motor
- slot wedge
- motor stator
- groove
- notch
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model relates to a fixing structure of a shielding pump motor stator winding notch. A motor coil is arranged in a motor stator core; a group of ceramic groove wedges with two convex dovetail ends are fixedly arranged in a dovetail groove of the motor stator core notch; a mounting gap is arranged between the adjacent groove wedges; a plurality of groove wedges are overlapped into groups in the length direction of the stator core; and a shielding sleeve is pressed on the groove wedge. By the structure, the material, function, structure and mounting mode of the ceramic groove wedges are described in detail, and a shielding sleeve can be supported under the condition that motor stator core of a shielding pump has an opening. The structure is simple and convenient to install; and besides, the ceramic groove wedges do not cause negative effects on the performance of the motor, so that the motor efficiency can be improved, and the structure of shielding sleeve can be optimally designed.
Description
Technical field
The utility model relates to a kind of with fixed mask pump motor stator winding structure.
Background technology
The fluid isolation that canned pump motor stator winding cavity all has the very thin housing of one deck that pump is transported is to protect motor windings not by the fluid etch.The shielding mantle cavity communicates with pump chamber, is bearing the system pressure of fluid, and housing is owing to receive electric machine structure restriction and the influence of electromagnetism, essential very thin (usually about the 0.5mm) that design, thereby can't bear the system pressure of high pressure, the back needs support.
Housing is divided into tooth portion and two parts of slot part in the support of electric machine iron core section.Wherein tooth portion is made up of the silicon steel sheet that laminates, and the end is fixed with tooth support; Slot part is because the needs that roll off the production line generally adopt opening or half opening form (the existing groove of remaining silent), and its support can only be born by the slot wedge that is installed in the groove.
For the less shielded motor of power; Because the bore of stator diameter is little, the stator winding size is also less, and stator punching can adopt the less flute profile of opening (or the groove of remaining silent); Notch is used the insulating material compacting with the corresponding grade of motor windings, through guaranteeing that notch is to the support of housing and heat-resisting requirement.For powerful shielded motor; Because the needs of stator winding size and inserting-coil process; Stator punching has to adopt the open slot form, when the indoor design hypertonia of shield electric machine, support stator can; It is very thick that the insulation slot wedge will design, and structure space can't satisfy its requirement; If adopt the higher steel of intensity to do slot wedge, because slot wedge is under the effect of rotating magnetic field, the rigidity slot wedge is understood the outer loss of yield, and then causes the temperature rise increase and the decrease in efficiency of motor.
Summary of the invention:
The purpose of the utility model provides a kind of canned pump motor stator winding notch fixed structure; The utility model can guarantee to support the intensity of housing; Do not influence the design of stator core notch size again; The electromagnetic consumable that ceramic simultaneously insulation property are avoided has solved shield electric machine stator openings groove satisfactorily to a housing support technology difficult problem.The technical scheme of the utility model is: a kind of canned pump motor stator winding notch fixed structure; Motor coil is installed in the electric machine stator iron; The dovetail groove internal fixation of electric machine stator iron notch is installed the ceramic trough voussoir that one group of two ends becomes protruding swallow-tail form; Have assemblage gap between the adjacent slot voussoir, a plurality of slot wedge piece of stator core length direction closed assembly in groups, housing is fitted on the slot wedge piece.The utility model mainly is design and makes a kind of canned pump motor stator winding construction.According to groove width size unshakable in one's determination and stress condition thereof that shield electric machine designs, its structure is seen shown in Figure 1.Slot wedge is designed to the square structure with protruding dovetail; And keep certain length-width ratio (c/a) and thickness (b); Slot wedge prolong thickness (b) direction singly closed assembly go into mounted stator core slot part; Finally make whole slot part all fill slot wedge, to keep continuous support, as shown in Figure 2 to housing.
The advantage of the utility model: ceramic material has high temperature resistant, insulation, heat conduction, non-magnetic conduction and high compression strength, and the slot wedge that adopts its to make has the individual features of ceramic material equally.This pottery slot wedge laminates through little block structure and is installed in the shield electric machine notch, forms a continuous supporting surface, has satisfied the support to the motor housing.Simple in structure, easy to make, the simple installation of this pottery slot wedge, the minim gap between the intensive continuously fritter pottery also can absorb the thermal strain of housing, and design has brought benefit to housing for this.
Description of drawings
Fig. 1 is the slot wedge piece outline drawing of the utility model
Fig. 2 is the utility model structural representation
Embodiment
The utility model as shown in Figure 2 is a canned pump motor stator winding construction; Motor coil 2 is installed in the electric machine stator iron 1; The dovetail groove internal fixation of electric machine stator iron notch is installed the ceramic trough voussoir 3 that one group of two ends becomes protruding swallow-tail form; Have assemblage gap between the adjacent slot voussoir 3, a plurality of slot wedge piece 3 closed assemblies of stator core length direction become the ancestral, and housing 4 is fitted on the slot wedge piece 3.
The pressure of motor cavity is being born at the back of the motor housing that the pottery slot wedge is installed.The slot wedge two ends become protruding swallow-tail form, and the dovetail that protrudes during installation is stuck in the dovetail groove internal fixation of electric machine stator iron notch, at piece of stator core length direction slot wedge are gathered into folds, and form complete supporting surface.Motor stator shielding back is close on the slot wedge under the effect of interior pressure, and slot wedge plays the effect of supporting housing.
Need according to this supporting construction and installation, at length designed structure such as Fig. 1 of monolithic slot wedge.Consider the high rigidity of ceramic material; The method that can not be simply during installation add with polishing or machine come inching, and it is oversize that the length of slot wedge (c) can not design, if because c design oversize; In when assembling since stator core when laminating notch laminate tolerance; The dovetail groove that slot wedge is installed is uneven, will cause the assembling difficulty, even can't pack into.Slot wedge is after designing suitable length (c), because the tolerance of making, also possibly selected the slot wedge of suitable size and install in the groove even the slot wedge that has can not be packed into.If install or the time monolithic slot wedge occurs and damage, change also more convenient.
According to the slot wedge size of Fig. 1 design and the requirement of design specification, utilize the process of electrotechnical ceramics development, selected to satisfy the ceramic material of design specification and instructions for use, accomplish material weighing, ball milling, moulding, sintering, processing and performance test; Through to different process make groping of powder and sintering temperature, confirm the sintering temperature of slot wedge, and accomplished the product examination.
The slot wedge piece is installed in the electric machine stator iron groove through the mode of closed assembly between piece and the piece; Play the purpose that supports housing and protection motor stator winding; Bearing length can be regulated through increasing or reduce slot wedge quantity; Support width is calculated the slot wedge thickness that is needed by different design pressure decisions again after the acquisition through the electromagnetism of motor, and keeps appropriate ratio.There is assemblage gap between slot wedge piece and the piece, also can absorbs the thermal strain of housing effectively.
Claims (1)
1. canned pump motor stator winding notch fixed structure; Motor coil (2) is installed in the electric machine stator iron (1); It is characterized in that: the dovetail groove internal fixation of electric machine stator iron notch is installed the ceramic trough voussoir (3) that one group of two ends becomes protruding swallow-tail form; The adjacent slot voussoir has assemblage gap between (3), a plurality of slot wedge pieces of stator core length direction (3) closed assembly in groups, housing (4) is fitted on the slot wedge piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230160 CN202550743U (en) | 2012-05-22 | 2012-05-22 | Fixing structure of shielding pump motor stator winding notch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230160 CN202550743U (en) | 2012-05-22 | 2012-05-22 | Fixing structure of shielding pump motor stator winding notch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550743U true CN202550743U (en) | 2012-11-21 |
Family
ID=47171310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220230160 Expired - Lifetime CN202550743U (en) | 2012-05-22 | 2012-05-22 | Fixing structure of shielding pump motor stator winding notch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550743U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441587A (en) * | 2013-08-23 | 2013-12-11 | 中国核动力研究设计院 | Shielding structure for shielding stator core of motor and stator closed slot threading technology |
| CN103532278A (en) * | 2013-09-27 | 2014-01-22 | 哈尔滨电气动力装备有限公司 | Connection structure of tooth pressing plate and ceramic plug-in unit of motor stator of shielding pump |
| DE102018202945A1 (en) * | 2018-02-27 | 2019-08-29 | Bayerische Motoren Werke Aktiengesellschaft | Electric machine and vehicle with such |
| CN113541362A (en) * | 2020-04-20 | 2021-10-22 | 奥迪股份公司 | Motor and motor vehicle |
| CN113991910A (en) * | 2020-07-27 | 2022-01-28 | 奥迪股份公司 | Motor and motor vehicle |
-
2012
- 2012-05-22 CN CN 201220230160 patent/CN202550743U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441587A (en) * | 2013-08-23 | 2013-12-11 | 中国核动力研究设计院 | Shielding structure for shielding stator core of motor and stator closed slot threading technology |
| CN103532278A (en) * | 2013-09-27 | 2014-01-22 | 哈尔滨电气动力装备有限公司 | Connection structure of tooth pressing plate and ceramic plug-in unit of motor stator of shielding pump |
| DE102018202945A1 (en) * | 2018-02-27 | 2019-08-29 | Bayerische Motoren Werke Aktiengesellschaft | Electric machine and vehicle with such |
| US11336142B2 (en) | 2018-02-27 | 2022-05-17 | Bayerische Motoren Werke Aktiengesellschaft | Electrical machine including closure walls for winding slots |
| CN113541362A (en) * | 2020-04-20 | 2021-10-22 | 奥迪股份公司 | Motor and motor vehicle |
| CN113991910A (en) * | 2020-07-27 | 2022-01-28 | 奥迪股份公司 | Motor and motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |