CN1173064A - Motor stator - Google Patents

Motor stator Download PDF

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Publication number
CN1173064A
CN1173064A CN97112484A CN97112484A CN1173064A CN 1173064 A CN1173064 A CN 1173064A CN 97112484 A CN97112484 A CN 97112484A CN 97112484 A CN97112484 A CN 97112484A CN 1173064 A CN1173064 A CN 1173064A
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CN
China
Prior art keywords
coil
phase coil
connecting line
motor stator
slot part
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN97112484A
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Chinese (zh)
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CN1118123C (en
Inventor
志贺刚
林钦也
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Toshiba Corp
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Toshiba Corp
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Publication of CN1173064A publication Critical patent/CN1173064A/en
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Publication of CN1118123C publication Critical patent/CN1118123C/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/32Windings characterised by the shape, form or construction of the insulation
    • H02K3/34Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • H02K3/345Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2203/00Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/06Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

The present invention discloses a motor stator, wherein an upper cover and a lower cover are fitted to a stator core 1, and a U-phase coil, a V-phase coil and a W-phase coil are wound on the two covers 2 and 3, respectively. In this constitution, recessed parts are juxtaposed in the lower cover, and a crossover of the W-phase coil is inserted in the recessed part, while a crossover of the V-phase coil is inserted in the recessed part. Accordingly, the crossovers are shifted from each other in positions in the height direction and isolated from each other by a partition wall of the recessed parts, therefore, the performance of insulation between different phases is improved.

Description

Motor stator
The invention relates to invention with motor stator that resin system insulating lid structure is housed on stator core.
In stator such as 3 phase DC brushless motors, embedded resin system insulating lid on the stator core, each phase coil is wrapped on the insulating lid of stator core.In this structure, owing to be formed with the connecting line that inserts the out-phase coil in slot part, this slot part together on the end face of insulating lid, so can produce the phenomenon of insulation breakdown between out-phase.
In view of the above problems, the purpose of this invention is to provide a kind of motor stator that can improve insulation property between out-phase.
Take following technical scheme for reaching above-mentioned the present invention certainly:
A kind of motor stator is characterized in that having:
Stator core;
Be contained in the resin system insulating lid on this stator core;
Install around the heterogeneous coil on the said stator iron core from the top of above-mentioned insulating lid; With
Be set up in parallel at above-mentioned insulating lid place and can insert a plurality of slot parts of out-phase winding wiring respectively,
Has difference in height between the bottom surface that these a plurality of slot parts adjoin each other.
Described motor stator is characterized in that:
The connecting line of above-mentioned polyphase winding is configured in the both sides up and down of insulating lid respectively, and is set side by side with a plurality of slot parts at least on the insulating lid end face of a side, and described a plurality of slot parts insert the connecting line of out-phase coil respectively.
Described motor stator is characterized in that:
Each slot part is formed with the notch part that connecting line inserts in the form of a ring on the wall of each slot part.
Described motor stator is characterized in that:
Have at least the height of one bottom surface height and coil-winding end roughly the same in above-mentioned a plurality of slot part.
Described motor stator is characterized in that:
On insulating lid, coiling top and terminal integrally formed tubular a plurality of terminal insertion section, angle position corresponding to the coil of each phase on these each terminal insertion sections, are formed with the groove of the terminal line that inserts coil.
Described motor stator is characterized in that:
A plurality of slot parts, the height dimension of its wallboard are step-like to be changed successively.
Described motor stator is characterized in that:
A plurality of slot parts, the size that the bottom surface of relative stator iron core separates in the stator core circumferentially periphery reduce successively.
Described motor stator is characterized in that:
In insulating lid, install around the installing around in the portion of coil, be formed with the groove that is positioned at coiling top portion and can inserts winding wire.
Described motor stator is characterized in that: have: stator core; Be contained in the resin system insulating lid on this stator core; Install around on the insulating lid of said stator iron core and heterogeneous coil is arranged; Be set up in parallel at above-mentioned insulating lid place and can insert a plurality of slot parts of out-phase coil connecting line respectively; Has difference in height between the bottom surface of these a plurality of slot part adjacency.
According to foregoing invention, the connecting line of out-phase coil inserts respectively in a plurality of slot parts, and its height and position staggers mutually.Like this, because each connecting line is isolated by the wallboard of each slot part, so improved insulation property significantly.
Described motor stator is characterised in that: the connecting line of polyphase winding is configured in the upper and lower both sides of insulating lid respectively, and is set side by side with a plurality of slot parts at least on the insulating lid of a side, and described a plurality of slot parts insert the connecting line of out-phase coil respectively.
According to foregoing invention, the connecting line of each phase coil is arranged on the end face of both sides insulating lid.Like this, the situation that concentrates on a side insulating lid end face with each phase coil connecting line is different, is not arranged on the end face of a side insulating lid owing to do not need slot part concentrated, so device is able to miniaturization.
Described motor stator is characterised in that: each slot part is cylindric, is formed with the notch part that connecting line inserts on its wallboard.
According to foregoing invention, because connecting line connects up along the circular bottom surface of slot part, its length is shortened.Like this, owing to reduced the impedance of coil, so improved electrical characteristic.
Described motor stator is characterised in that: the height that has at least one bottom surface height and coil-winding not to hold in a plurality of slot parts is roughly the same.
According to foregoing invention, the bottom surface of slot part be provided with roughly with the coil-winding end on the sustained height position.Like this, when winding around on stator core,, connecting line improves sub-assembly process process and processability in the slot part owing to being easy to insert.
Described motor stator is characterised in that: on insulating lid, formed corresponding to the coiling top of each phase coil and terminal angle position and a plurality ofly to become one and tubular terminal insertion section with insulating lid.
According to foregoing invention, if each binding post is inserted after the terminal line of each phase coil inserted each terminal insertion section, each terminal line is just fixed by each binding post again.Like this, when winding around on stator core, just do not need to fix each terminal line with method for distinguishing.Meanwhile, owing to inserting each binding post in each terminal insertion section and connecting, so the processing of terminal line becomes easily with each terminal line.And, because the setting of terminal insertion section is corresponding with the top and the end of each coil-winding, so its terminal line is easy to insert groove.Further, form,, reduced the cost of device so compare with the structure that other mode is installed on the insulating lid with a plurality of terminals insertion section because each terminal insertion section and insulating lid are whole.
Described motor stator is characterised in that: the height dimension of each slot part wallboard is step-like to be changed successively.
According to foregoing invention, when winding around on stator core, owing to each connecting line can be pulled to the wallboard of each slot part and insert slot part at an easy rate, so shortened coiling time.
Described motor stator is characterised in that: reduce successively on each slot part bottom width size direction that circumferentially periphery changes in the stator core.
According to foregoing invention, the connecting line of out-phase coil has step along the slot part sole arrangement on its short transverse.Like this, owing to can prevent the contact of out-phase coil alternating share, so further improved insulation property between out-phase.
Described motor stator is characterised in that: install around installing around of coil and be formed with the groove that is positioned at coiling top portion and can inserts winding wire in the portion in insulating lid.
According to foregoing invention, its position just had been determined when winding wire inserted the insulating lid groove.Like this, be very easy to proper alignment because the coiling top of each coil is very stable and begin the coil sections coiling along this, so, can not only make electrical characteristic stable, and improve equipped manufacturability and processability.
The good effect of invention:
Can know clearly that from above-mentioned explanation motor stator of the present invention has following effect.
According to described invention, on insulating lid, be set up in parallel a plurality of slot parts, the connecting line of out-phase coil inserts respectively among each slot part.Like this, because stagger mutually in out-phase coil connecting line position in height and separated by the wallboard of each slot part, so can play the insulation property that improve between out-phase, the effect that prevents insulation breakdown.
According to described invention, the connecting line of each phase coil is pulled out from end face one side and the relative opposite side of insulating lid, like this, just needn't on a side end face of insulating lid a plurality of slot parts be set, so, can make equipment miniaturization.
According to described invention, each slot part is configured to the while cylindraceous, is formed with the notch part that inserts usefulness for coil-winding on the wallboard of each slot part.Like this,, each coil-winding shortened conductor length, so reduced coil impedance, improved electrical characteristic owing to being circle-shaped layout along the slot part bottom surface.
According to described invention, the slot part bottom surface be provided with roughly with the coil-winding end on the sustained height position.Like this, owing to being easy to insert, connecting line improved assembly process process and processability in the slot part.
According to described invention, terminal insertion section and insulating lid are whole to be formed.Like this,, just each terminal line can be communicated with and fix, be easier to so terminal line is handled operation owing to insert binding post again behind the groove of coil end line insertion terminal insertion section.
According to described invention, the height dimension of a plurality of slot part wallboards is step-like variation.Like this, can at an easy rate connecting line be pulled to wallboard and enter slot part during owing to coiling, so improved assembly process process and processability.
According to described invention, the slot part bottom surface is set to inwardly be step-like structure from the stator core periphery.Like this, owing to staggering in the connecting line position height position of out-phase coil, thus can prevent the contact of connecting line alternating share, thus the insulation property between out-phase further improved, can prevent the destruction of insulating really.
According to described invention, be formed with the groove that coil-winding inserts in the portion installing around of insulating lid.Like this, twine because proper alignment ground is stablized, is easy in the initial coiling of each coil, so electric property is stablized, assembly process process and processability also are improved.
Following with reference to accompanying drawing, describe embodiments of the invention in detail:
Fig. 1 is the schematic diagram (main position axial section schematic diagram) of the embodiment of the invention 1.
Fig. 2 is the vertical section schematic diagram that lower cover of the present invention is wanted portion.
Fig. 3 is the vertical section schematic diagram that loam cake of the present invention is wanted portion.
Fig. 4 is another vertical section schematic diagram that lower cover of the present invention is wanted portion.
Fig. 5 is the partial top view of loam cake of the present invention.
Fig. 6 is the top view that expression W phase coil twines state.
Fig. 7 is the top view that expression V phase coil twines state.
Fig. 8 represents that the U phase coil twines the top view of state.
Fig. 9 is integrally-built schematic perspective view (from a upside).
Figure 10 is integrally-built schematic perspective view (from a downside).
The alternating share sectional perspective schematic diagram of Figure 11 out-phase coil connecting line.
The schematic diagram of Figure 12 embodiment of the invention 2 (loam cake is wanted the schematic perspective view of portion).
Figure 13 is that loam cake is wanted portion's top view.
Figure 14 is that lower cover is wanted portion's upward view.
Figure 15 is that loam cake is wanted portion's vertical profile schematic diagram.
Figure 16 is the schematic diagram (wanting the vertical profile schematic diagram of portion) of the embodiment of the invention 3.
Figure 17 is the schematic perspective view that loam cake is wanted portion.
According to Fig. 1 to Figure 11 embodiments of the invention 1 are described below.This embodiment applies the present invention to the pulse motor of washing machine and the example that iron drives the three-phase automatic rotor formula brushless DC motor stator of Wash tub.At first, in Fig. 9, stator core 1 is to be formed by connecting by forming circular a plurality of units iron core (not shown), and this constituent parts iron core forms by steel plate is stacked.
As shown in Figure 1, the loam cake 2 that is equivalent to insulating lid is formed by nonconducting synthetic resin, and has the 2b of the portion that the installs around (see figure 5) of making wallboard 2a cylindraceous and being radial extension from wallboard 2a.Respectively install around the cross-section of the 2b of portion and be the コ font, 1 as shown in Figure 6 after loam cake 2 is pressed into from top to bottom from the axis direction of stator core 1, the outside that respectively installs around the 2b of portion is hidden by the T type portion of stator core 1, and the first half of stator core 1 is all hidden by loam cake 2 except that inner and outer circumferential surfaces.
As shown in Figure 1, be equivalent to insulating lid lower cover form by nonconducting synthetic resin, and have the 3b of the portion that installs around that makes wallboard 2a cylindraceous and be radial extension from wallboard 2a.Respectively install around the cross-section of the 3b of portion and be the コ font, when lower cover after being pressed into from lower to upper from the axis direction of stator core 1, the wallboard 3a of lower cover 3 and respectively install around the 3b of portion and dock with the wallboard 2a and the portion 2b of installing around of loam cake 2 respectively respectively installs around the 3b of the portion outside and is also hidden by the 1a of T type portion of stator core 1~1c.Like this, as shown in figure 10, the Lower Half of stator core 1 is removed inner and outer circumferential surfaces and is hidden by lower cover 3 entirely.
As shown in Figure 8, installed around U phase coil 4 on each T type portion 1a place, loam cake 2 and the lower cover 3 of stator core 1.This U phase coil 4 is entwined by a lead, and is coiling top with 4S.After finishing in the coiling of last T type portion, more next T type portion is twined along direction shown in the A of front, so order is carried out (the coiling terminal that 4e is U phase coil 4 among the figure).As shown in Figure 9, shown in arrow B among the figure, the connecting line 4a between each U phase coil 4 is positioned at loam cake 2 one sides with respect to the direction of winding of each T type portion coil.
As shown in Figure 7, each T type portion 16 place of stator core 1 are wound with V phase coil 5 on loam cake 2 and the lower cover 3.This V phase coil 5 is entwined by a lead, and is coiling top with 5S.After finishing in the coiling of last T type portion, more next T type portion is twined along direction shown in the arrow A, so order is carried out (the coiling terminal that 5e is V phase coil 5 among the figure).As shown in Figure 9, with respect to each T type 1b of portion, direction shown in the arrow B is opposite among the direction of winding of coil and the figure, and the connecting line 5a between each V phase coil 5 is positioned at lower cover 3 one sides.
As shown in Figure 6, each T type portion 1C place of stator core 1 is wound with W phase coil 6 on loam cake 2 and the lower cover 3.This W phase coil 6 is entwined by a lead, and is coiling top with 6S.After finishing in the coiling of last T type portion, more next T type portion is twined along direction shown in the arrow A, so order is carried out (the coiling terminal that 6e is W phase coil 6 among the figure).As shown in figure 10, with respect to each T type 1C of portion, direction shown in the arrow B is opposite among the direction of winding of coil and the figure, and the connecting line between each W phase coil 6 is positioned at lower cover 3 one sides.
As shown in Figure 1, loam cake 2 places are formed with cylindric slot part 7.This slot part 7 is by the wallboard 2a of loam cake 2, constitute with the integrally formed circular base plate 7a of wallboard 2a with the integrally formed cylindric wallboard 7b of this base plate 7a as shown in Figure 3.The upper surface of above-mentioned wallboard 7a is a little more than U phase coil 4 coiling terminals, and the upper surface of wallboard 7b is lower than the upper surface of wallboard 2a.
On wallboard 2a, be formed with the notch part 7c of a plurality of upward openings.As shown in Figure 9, the configuration of these notch parts 7c is corresponding with each T type 1a of portion, and the connecting line 4a of each U phase coil 4 inserts in the slot part 7 and along base plate 7a upper surface by notch part 7c and penetrates next notch part, again by drawing here.
As shown in Figure 2, be formed with cylindric the 1st slot part 8 on the lower cover 3.The 1st slot part 8 is by the wallboard 3a of lower cover 3, constitute with the integrally formed circular base plate 8a of wallboard 3a with the integrally formed cylindric wallboard 8b of base plate 8a.Above-mentioned base plate 8a lower surface position height is a little more than the coiling terminal of W phase coil 6, and the lower surface of wallboard 8b is a little less than the relevant position of wallboard 3a.
On wallboard 3a, be formed with a plurality of notch part 8c under shed.As shown in figure 10, the configuration of these notch parts 8c is corresponding with each T type 1c of portion, and the connecting line 6a of each W phase coil 6 inserts in the slot part 8 and along base plate 8a upper surface by notch part 8c and penetrates next notch part, again by drawing here.
As shown in Figure 4, lower cover 3 places also are formed with the 2nd slot part 9 cylindraceous with it side by side in above-mentioned the 1st slot part 8 inboards.The 2nd slot part 9 is by the wallboard 8b of the 1st slot part 8, constitute with the integrally formed circular base plate 9a of this wallboard 8b with the integrally formed cylindric wallboard 9b of this base plate 9a.Above-mentioned base plate 9a is positioned at the below of the base plate 8a of the 1st slot part 8, and the lower surface of above-mentioned wallboard 9b is positioned at the place, top position of wallboard 8b.
On wallboard 3a and 8b, be formed with a plurality of notch part 9C and 9d under shed.As shown in figure 10, the setting of each breach 9c and 9d is corresponding with the T type 1b of portion, the bottom surface height of each notch part 9c and the roughly the same (see figure 4) of 9d, and be positioned at base plate 8a below.Like this, the connecting line 5a of each V phase coil 5 inserts (see figure 10) in the slot part 9 by notch part 9c and 9d, draws along the breach 9d and the 9c of base plate 9a bottom surface through adjacency then.
As shown in Figure 5, be formed with Horizontal Branch bearing surface 2c on the loam cake 2, formed terminal insertion section 10~12 on this bearing-surface 2c with three rectangular tubulars of its all-in-one-piece.These terminal insertion sections 10~12 are arranged on the portion 2b of installing around closely is close to, and corresponding with the angle position of the coiling top 4s~6s of coil 4~6, it is formed with the groove 10a~12a of upward opening respectively on stator core inner periphery and the outer periphery two walls.Respectively the width of this groove 10a~12a roughly with the equal diameters of coil-winding, the coiling top 4s~6s of coil 4~6 is inserted in (shown in Fig. 6~8) among groove 10a~12a respectively.
Be inserted with external cabling terminal (not shown) in the terminal insertion section 10~12, and be inserted with shared binding post (not shown) in the terminal insertion section 13~15.Above-mentioned binding post mostly is a plug in terminals, when external cabling terminal (not shown) being inserted terminal insertion section 10~12, shared binding post is inserted the terminal insertion section at 13~15 o'clock, and each binding post is connected with coil after scratching the dielectric film of coiling.
The following describes the assemble sequence of stator.At first respectively loam cake 2 and lower cover 3 are contained on the stator coil 1 from the axis direction both sides.Then, as shown in Figure 8, coil-winding is pressed in groove 12a, the 12a of terminal insertion section 12, in the sub-insertion section 12 of external cabling terminal insertion end, meanwhile, after coil-winding is fixing by the external cabling terminal, just can 4s as coiling top, beginning is winding U phase coil 4 on first T type 1a of portion.
As shown in Figure 9, after first T type 1a of portion go up to twine the U phase coil, mobile automatic coil winding machine, the connecting line 4a of U phase coil 4 is drawn in wallboard 2a and be inserted in the slot part 7, begin to twine the U phase coil 4 on the next T type 1a of portion then.Carry out aforesaid operations repeatedly, after all U phase coil 4 being wound successively on all T type 1a of portion, the more terminal line of U phase coil 4 is inserted in groove 13a, the 13a of terminal insertion section 13 (as shown in Figure 8), insert shared binding post then.
As shown in Figure 6, after the winding of U phase coil 4 finishes, again coil-winding is pressed in groove 10a, the 10a of terminal insertion section 10, in the sub-insertion section 10 of external cabling terminal insertion end, meanwhile, when coil-winding by the fixing back of external cabling terminal just can 6s as coiling top, begin winding W phase coil 6 on first T type 1a of portion.
Below, as shown in figure 10, mobile automatic coil winding machine, when the connecting line 6a with W phase coil 6 drew in wallboard 3a and inserts in the slot part 8, beginning was twined W phase coil 6 successively in each T type portion.Then, as shown in Figure 6, the terminal line of W phase coil 6 is inserted in groove 14a, the 14a of terminal insertion section 14, shared binding post is inserted in the terminal insertion section 14.
As shown in Figure 7, after the winding of W phase coil 6 finishes, coil-winding is pressed in groove 11a, the 11a of terminal insertion section 11, in the sub-insertion section 11 of external cabling terminal insertion end, meanwhile, after the external cabling terminal was fixing with coil-winding, 5s began to twine V phase coil 5 for coiling top on first T type 1b of portion.
Below, as shown in figure 10, mobile automatic coil winding machine, when the connecting line 5a with V phase coil 5 drew in wallboard 3a and inserts in the slot part 9, V phase coil 5 was twined in beginning successively in each T type portion.Then, as shown in Figure 7, the not end line of V phase coil 5 is inserted in groove 15a, the 15a of terminal insertion section 14, shared binding post is inserted in the terminal insertion section 15.
According to the foregoing description, on lower cover 3, be set up in parallel slot part 8 and 9, be inserted with the connecting line 5a of V phase coil 5 and the connecting line 6a of W phase coil 6 in it.Like this, be spaced from each other owing to the height and position difference that connects 5a and 6a and by wallboard 8b, so, the destruction of having improved the insulation property between out-phase and can prevent to insulate.
But when the arbitrary example that connecting line 4a~6a is concentrated in loam cake 2 or the lower cover 3, then the either party of loam cake 2 and lower cover 3 must be set up in parallel three slot parts and therefore become and maximize.At this problem, in the foregoing description, the connecting line 4a of U phase coil 4 is drawn by loam cake 2 one sides, and connecting line 5a, the 6a of V phase and W phase coil 5,6 are drawn by lower cover 3 one sides.Like this, just need not be set up in parallel 3 slot parts, install also Miniaturizable.
In addition, slot part 7~9 is arranged to the while cylindraceous, on the wallboard 2 of slot part 7, is being formed with notch part 7c, on the wallboard 3 of slot part 8, be formed with notch part 8c, on the wallboard 8b of slot part 9, be formed with notch part 9d.Like this, because each coil-winding is arranged to circle-shapedly along slot part 7~9, its length is shortened, and impedance is reduced, and electric property is improved.
In addition, highly roughly the coiling terminal height with U phase coil 4 and W phase coil 6 is identical because the base plate 8a of the base plate 7a of slot part 7 and slot part 8 is provided with, so the connecting line 4a of each U phase coil 4 and each W phase coil 6 connecting line 6a are easy in insertion groove 7 and 8.Like this, improved assembling and processability, consequently shortened coiling time, improved product quality and reduced cost.
Because terminal insertion section 10~15 is arranged on the loam cake 2, so, when the terminal line with U phase coil 4 and W phase coil 6 inserts in the groove 10a~15a of terminal insertion section 10~15, and after inserting binding posts in the terminal insertion section 10~15, each terminal line can be connected and fixing.Like this, because handling to become, terminal line is easier to, so also improved assembling and processability.
The coiling top and the distal portion that correspond respectively to coil 4~6 owing to each terminal insertion section 10~15 are provided with, so the terminal line of coil 4~6 can insert among groove 10a~15a simply, i.e. its processing becomes easier.Furtherly, because terminal insertion section 10~15 and loam cake 2 whole formation, the structure that is installed in respectively on the loam cake 2 with each terminal insertion section 10~15 compares, and has reduced cost.
Because the height dimension of the wallboard 3a of slot part 8 and the wallboard 8b of slot part 9 is step-like variation, so when V phase coil 5 and 6 windings of W phase coil, along with moving of automatic coil winding machine, its connecting line 5a and 6a just can be drawn into wallboard 8b and 3a and insert in slot part 9 and 8.At this moment,,, improved product quality, reduced cost so further shortened coiling time because connecting line 5a and 6a be easy to insert in slot part 9 and 8.
Because the bottom surface height (with respect to the size of space of stator core 1) of slot part 9 is higher than the bottom surface of slot part 8, (as shown in figure 11) the connecting line 5a of V phase coil 5 and W mutually 6 connecting line 6a contact so can prevent connecting line 5a and connecting line 6a alternating share along size difference on the sole arrangement of the bottom surface of slot part 9 and slot part 8 and the short transverse.Like this, further improve the insulation property between out-phase, and can prevent the destruction of insulating barrier really.
Because the bottom surface of outer circumferential side notch part 9c is higher than the bottom surface of slot part 8, the position of V phase coil 5 connecting line 5a is determined by notch part 9c, contacts with connecting line 6a so can prevent connecting line 5a really, thereby has prevented the destruction of insulating between the out-phase.
According to Figure 12~Figure 15 embodiments of the invention 2 are described below.Here, the parts identical with the foregoing description 1 still adopt identical symbol, and explanation is omitted, and only is illustrated with regard to different parts below.At first, in Figure 15, the base plate 7a place of loam cake 2 is formed with a plurality of groove 7d (only having represented 1 among the figure), and the connecting line 4a of each U phase coil 4 injects among the groove 7d as shown in figure 12.
As shown in figure 13, the wallboard 3a of the wallboard 2a of loam cake 2 and lower cover 3 has upward formed a plurality of groove 7c (only having represented among the figure) that extend along the vertical direction in the position of outer peripheral face.Respectively this groove 7e is positioned near the root of the T type 1a of portion as shown in figure 12, inserts in the groove 7e after the connecting line 4a of each U phase coil 4 is pulled out by the notch part 7c of slot part 7, twines next T type portion then.
As shown in figure 14, on the base plate 8a of slot part 8, be formed with a plurality of groove 8d (only having represented among the figure), be formed with a plurality of groove 9e (only having represented among the figure) on the base plate 9a of frid 9, the connecting line 5a of each V phase coil 5 and the connecting line 6a of each W phase coil 6 can insert among above-mentioned groove 9e and the 8d.
The circumferential position place has formed a plurality of groove 8e (only having represented among the figure) that extend along the vertical direction on the wallboard 2a of the wallboard 3a of lower cover 3 and loam cake 2.Each groove 8e is positioned near the root of the T type 1c of portion, after the connecting line 6a of each W phase coil 6 is pulled out by the notch part 8c of slot part 8, inserts in the groove 8e again and twines on the T type 1c of portion.In addition, the outer peripheral face position is formed with a plurality of groove 9f (only having represented among the figure) that extend along the vertical direction on the wallboard 2a of the wallboard 3a of lower cover 3 and loam cake 2.Each groove 9f is positioned at the root position place of the T type 1b of portion, after the connecting line 5a of each V phase coil 5 is pulled out by the notch part 9d of slot part 9 and 9c, inserts among the groove 9f and twines on the T type 1b of portion.
The depth dimensions of each groove 7d, 8d, 9e roughly is set at about 1/5~3/2 of winding wire diameter.And the depth dimensions of each groove 7e, 8e, 9f roughly is set at about 1/2 of winding wire diameter.
According to the foregoing description, formed groove 7d, 8d and 9e respectively at the base plate 7a of slot part 7, the base plate 8a of slot part 8, the base plate 9a place of slot part 9, insert connecting line 4a, 6a and 5a in it respectively.Like this, because connecting line 4a, 5a and 6a are minimum by groove 7d, 8d and 9e guiding and its length dimension respectively, so reduced the impedance of coil-winding, further improved its electrical characteristic.And,,, from this aspect, also improved its electrical characteristic so its impedance is also certain because the length dimension of connecting line 4a~6a is certain.Further, also has the advantage that can prevent that each coil 4~6 is loose.
In addition, on loam cake 2 and lower cover 3, formed groove 7e, 8e and 9f, inserted U phase coil 4, the first lap of W phase coil 6 and V phase coil 5 in it.The initial winding position of U phase coil 4~W phase coil 6 is determined like this, also is easy to the arrangement that winds the line, and has further shortened coiling time, has improved product quality, reduced cost, also can prevent that each coil from producing relaxation simultaneously.
According to Figure 16 and Figure 17 embodiments of the invention 3 are described below.Wherein identical with the foregoing description 1 parts still adopt original symbol, and explanation is omitted.Describe with regard to different parts below.As shown in figure 16, place, the upper and lower end face on the 3b of the portion that respectively installs around of the 2b of the portion that respectively installs around of loam cake 2 and lower cover 3 is formed with groove 2c and 3c.Each groove 2c and 3c are positioned at and install around near 2b of portion and the 3b root, and its degree of depth is set at about 1/2 of winding wire diameter.
According to last embodiment, the first lap of each coil 4~6 inserts in groove 2c and the 3c, and the coiling of upper and lower layer line circle closely contacts and compress (the close coil winding of so-called permutation) mutually.Like this, because the first lap of each coil 4~6 is very stable, twine so be easy to permutation.And because electrical characteristic is stable, quality also is improved.Meanwhile, having improved assembly process process and processability has shortened coiling time, has reduced cost.
In the foregoing description 3, the place, coiling top that respectively installs around 2b of portion and 3b is formed with a groove 2c and 3c, but is not defined as one, for example, also can form many groove 2c and 3c among 2b of portion and the 3b whole installing around.
In addition, in the foregoing description 1~3, twine by the sequencing of U phase coil 4, W phase coil 6, V phase coil 5, also can carry out not according to said sequence, for example, can carry out by W phase coil 6, V phase coil 5, U phase coil 4 or by the order of W phase coil 6, U phase coil 4, V phase coil 5.
In the foregoing description 1~3, wallboard 9b, the 8b of lower cover 3, the height dimension of 3a outwards increase in stator core in week successively, also the mode that can be set to reduce successively.
In this external the foregoing description 1~3, the height dimension of wallboard 7b, the 2a of loam cake 2 outwards increases in stator core in week successively, also the structure that can be set to reduce successively.
Also have, be applicable to the outward rotation type brshless DC motor at the foregoing description 1~3, but be not limited to this that the present invention also is applicable to such as interior rotatable brshless DC motor.

Claims (8)

1. motor stator is characterized in that having:
Stator core;
Be contained in the resin system insulating lid on this stator core;
Install around the heterogeneous coil on the said stator iron core from the top of above-mentioned insulating lid; With
Be set up in parallel at above-mentioned insulating lid place and can insert a plurality of slot parts of out-phase winding wiring respectively,
Has difference in height between the bottom surface that these a plurality of slot parts adjoin each other.
2. motor stator according to claim 1 is characterized in that:
The connecting line of above-mentioned polyphase winding is configured in the both sides up and down of insulating lid respectively, and is set side by side with a plurality of slot parts at least on the insulating lid end face of a side, and described a plurality of slot parts insert the connecting line of out-phase coil respectively.
3. motor stator according to claim 1 is characterized in that:
Each slot part is formed with the notch part that connecting line inserts in the form of a ring on the wall of each slot part.
4. motor stator according to claim 1 is characterized in that:
Have at least the height of one bottom surface height and coil-winding end roughly the same in above-mentioned a plurality of slot part.
5. motor stator according to claim 1 is characterized in that:
On insulating lid, coiling top and terminal integrally formed tubular a plurality of terminal insertion section, angle position corresponding to the coil of each phase on these each terminal insertion sections, are formed with the groove of the terminal line that inserts coil.
6. motor stator according to claim 1 is characterized in that:
A plurality of slot parts, the height dimension of its wallboard are step-like to be changed successively.
7. motor stator according to claim 1 is characterized in that:
The size that the bottom surface of a plurality of slot part relative stator iron cores separates in the stator core circumferentially periphery reduce successively.
8. motor stator according to claim 1 is characterized in that:
In insulating lid, install around the installing around in the portion of coil, be formed with the groove that is positioned at coiling top portion and can inserts winding wire.
CN97112484A 1996-06-13 1997-06-11 Motor stator Expired - Fee Related CN1118123C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP152241/96 1996-06-13
JP152241/1996 1996-06-13
JP8152241A JP2942194B2 (en) 1996-06-13 1996-06-13 Motor stator

Publications (2)

Publication Number Publication Date
CN1173064A true CN1173064A (en) 1998-02-11
CN1118123C CN1118123C (en) 2003-08-13

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CN97112484A Expired - Fee Related CN1118123C (en) 1996-06-13 1997-06-11 Motor stator

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JP (1) JP2942194B2 (en)
KR (1) KR100271331B1 (en)
CN (1) CN1118123C (en)
TW (1) TW346698B (en)

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CN110875666A (en) * 2018-09-03 2020-03-10 布莱克曼两合公司 Electrical machine with stator formed by a pole chain and with contactless wiring of enamelled aluminium wires
CN110875666B (en) * 2018-09-03 2024-01-30 布莱克曼两合公司 Electric machine with a stator formed by a pole chain and with contactless wiring of enamelled aluminium wires

Also Published As

Publication number Publication date
TW346698B (en) 1998-12-01
KR100271331B1 (en) 2000-11-01
CN1118123C (en) 2003-08-13
KR980006721A (en) 1998-03-30
JPH104645A (en) 1998-01-06
JP2942194B2 (en) 1999-08-30

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