CN102437664A - Stator - Google Patents
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- CN102437664A CN102437664A CN2011103064124A CN201110306412A CN102437664A CN 102437664 A CN102437664 A CN 102437664A CN 2011103064124 A CN2011103064124 A CN 2011103064124A CN 201110306412 A CN201110306412 A CN 201110306412A CN 102437664 A CN102437664 A CN 102437664A
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Abstract
The invention provides a stator capable of easily accommodating the winding rear end of a driving coil wound on a stator core relative to the outer periphery of the stator core without exposing the winding rear end of the driving coil to the radial outer side of the stator core. A first insulator (11) and a second insulator (12) comprise a coil winding part (212) served as the winding basis of a driving coil (30); an outer covering part (211) formed on the radial outer side relative to the coil winding part (212) and overlapped with a stator core (10) when viewed from the axis; and an engaging protrusion part (24) projecting towards the axis and arranged on the outer covering part (211). The engaging protrusion part (24) is provided with an inner protrusion part (241), an outer protrusion part (242) arranged opposite to the inner protrusion part (241), and a winding rear end (32) arranged between the inner protrusion part (241) and the outer protrusion part (242) and used for holding the driving coil (30).
Description
Technical field
The present invention relates to a kind of stator, especially relate to and comprise insulator, by the stator core of insulator insulation, be used to produce the stator of the drive coil in magnetic field.
Background technology
As the stator of general synchronous motor, known have comprise that cyclic ligand is equipped with the stator (for example with reference to patent documentation 1) of the insulator of a plurality ofly cutting apart stator core unshakable in one's determination, being wound on the drive coil respectively cut apart on the iron core, stator core and drive coil are insulated.Stator core is assembled in the inboard of cylindric motor field frame through hot charging etc.The stator utilization that is assembled in the motor field frame is carried out excitation through the magnetic field that produces to the drive coil power supply to stator core, makes to be configured in inboard rotor (for example the having permanent magnet) rotation of stator.
If this stator, the winding end of drive coil is accommodated with the form along the side face of the radial outside of insulator.For example in patent documentation 1, the winding end of drive coil is in the gap that is housed in along the side face climbing of the radial outside of the outer circumferential side eaves portion of first insulator between the inner peripheral surface of outer peripheral face and motor field frame of outer circumferential side eaves portion.
Patent documentation 1: Japanese Patent Laid is opened the 2010-45868 communique
But there is following risk in the terminal installation structure of the winding of above-mentioned this drive coil: the winding end along the drive coil of the side face climbing of the radial outside of insulator exposes with respect to the outer weekly assembly radius vector of stator core laterally.Under the state before stator being contained in motor field frame,, then be difficult to stator pack is installed on the motor field frame if the winding end of drive coil exposes from the periphery of stator core laterally like this.In addition, also have following risk: the winding of the drive coil of needs insulation is terminal to be contacted with motor field frame.In other words, be difficult in and guarantee insulation distance between the two.
In addition, for the terminal installation structure of the winding of above-mentioned this drive coil, do not contact the measures such as winding end of to take on insulator, to be adhesively fixed in order to make the winding end with the inner peripheral surface of motor field frame.That is, the loss of the operation that the winding end of drive coil is accommodated is bigger, becomes one of reason that manufacturing cost rises.
Summary of the invention
In view of the above problems, technical problem to be solved by this invention provides a kind of stator, and this stator can will be wound on the winding end of the drive coil in the stator core and easily not accommodate to the form that radial outside exposes with the periphery with respect to stator core.
In order to solve the problems of the technologies described above, technological thought of the present invention is: a kind of stator comprises: stator core, this stator core have to the radially outstanding a plurality of prominent utmost point; Insulator, this insulator cover on the axis direction end face of said stator core; And drive and use coil, this driving with coil across said insulator be wound on the said prominent utmost point around, said insulator has: as the basic coil coiling portion of the coiling of said drive coil; And be formed on radial outside and see the outer side covers portion overlapping with said stator core from axis direction with respect to this coil coiling portion; Be formed with to the outstanding engaging protrusion portion of axis direction in said outer side covers portion; Said engaging protrusion portion have be positioned at inboard inside protrusions portion, with this inside protrusions portion relatively to outside jut, between said inside protrusions portion and said outside jut, keeping the winding end of said driving with coil.
In stator of the present invention, the outer side covers portion of insulator be formed with to the outstanding inside protrusions portion of axis direction and with this inside protrusions portion relatively to outside jut.And the winding end of drive coil remains between this inside protrusions portion and the outside jut.Therefore, the winding end of drive coil can not expose with respect to the outer side covers portion that is formed with inside protrusions portion and outside jut laterally.In other words, observe from axis direction, outer side covers portion is positioned at and the stator core position overlapped, and therefore, the winding end of drive coil can not expose to radial outside with respect to the periphery of stator core.Thus, adopt the present invention, can prevent that the winding end of drive coil from exposing the generation of the above-mentioned various undesirable conditions that cause to radial outside with respect to the periphery of stator core.
At this moment, preferably, said inside protrusions portion forms can strain, and said outside jut forms than said inside protrusions portion and is difficult to strain.
Like this; If inside protrusions portion forms the ability strain; Then through inside protrusions portion is out of shape to the inside, the gap between inside protrusions portion and the outside jut is pushed away wide, can the winding end of drive coil be housed between two claws; Therefore, the operability that the winding end is housed between two claws is excellent.In addition; As if being formed, outside jut is difficult to strain; Then can reduce the winding end that remains on the drive coil between inside protrusions portion and the outside jut outside jut radius vector is pushed to foreign side, the risk that winding terminal (and outside jut) exposes to radial outside with respect to the periphery of stator core.Promptly; Adopt said structure; Be easy to strain through only inside protrusions portion being constituted; The winding end that can prevent drive coil reliably exposes to radial outside with respect to the periphery of stator core, and the winding end that can improve drive coil is housed in the operability between inside protrusions portion and the outside jut.
In addition, preferably, it is the tabular of linearity that said inside protrusions portion forms the cross section, and the cross section of said outside jut forms circular-arc.
Like this, can easily construct outside jut and be difficult to the such structure of strain than inside protrusions portion.
In addition; At this moment; Preferably, the cross section of the face in the outside of said outer side covers portion forms circular-arc, and the inboard of said outer side covers portion forms the plane; The face in the outside of said outside jut is that the face from the outside of said outer side covers portion prolongs and forms along axis direction, and the face of the inboard of said inside protrusions portion is that the face from the inboard of said outer side covers portion prolongs and forms along axis direction.In addition; Preferably; The face in the face in the outside of said outer side covers portion and the outside of said outside jut is in same with the state that does not have difference in height (step), and the face of the inboard of the face of the inboard of said outer side covers portion and said inside protrusions portion is in same with the state that does not have difference in height.
Like this; If the face in the outside of outside jut is the shape that the face with the outside of outer side covers portion prolongs along axis direction; The face of the inboard of inside protrusions portion is the shape that the face of the inboard of outer side covers portion is prolonged along axis direction; Then becoming the intersection of side projecture part and inside protrusions portion and outer side covers portion does not outside have same shape of difference in height, and be shaped (processing) becomes easy.
In addition, preferably, the face of the inboard of said outside jut with respect to plane parallel along the extremely binary plane of will be said dashing forward of axis direction.In addition, preferably, the face of the inboard of said outside jut is parallel with the face of the inboard of said outer side covers portion.And preferably, the face in the outside of inside protrusions portion is parallel with the face of the inboard of said outside jut.
Adopt this structure (face in the outside of the face of the inboard of jut and outside jut is identically formed to the cross section and is circular-arc situation compared to the outside), the winding end that remains on the drive coil between outside jut and the inside protrusions portion more difficulty exposes to radial outside with respect to the periphery of stator core.
In addition, preferably, be formed with the front end calvus that is bent to form to direction adjacent to each other respectively at the front end of said inside protrusions portion and said outside jut.
Adopt this structure, narrow down between the front end of the front end of inside protrusions portion and outside jut, remain on the terminal difficult drop-off of winding of the drive coil between outside jut and the inside protrusions portion temporarily.
At this moment, preferably, on the said front end calvus that is formed at said inside protrusions portion and said outside jut respectively, be formed with the inclined plane that mutual interval is widened to the axis direction outside.
Adopt this structure, the winding end of drive coil easily is contained between outside jut and the inside protrusions portion.That is, even form the front end calvus that narrows down between the front end of above-mentioned front end that makes inside protrusions portion and outside jut, the operability of accommodating the terminal operation of the winding of drive coil is also excellent.
In addition, preferably, the insulator of another axis direction end face that said engaging protrusion portion is formed on the insulator of an axis direction end face that covers said stator core and covers said stator core is on the two.
Terminal as the winding of drive coil, the winding various windings ends such as terminal (so-called bridging lines) with the drive coil that constitutes same phase is connected to each other that together winding is terminal, the winding terminal (so-called power line) that leads to mains side, one distolateral (with power line antipole property side) that will constitute out of phase drive coil gather formation are arranged.Therefore, if all be provided with engaging protrusion portion with another these both sides of axis direction end face side, then can utilize the two winding of accommodating drive coil efficiently of engaging protrusion portion that is arranged on a side, opposite side terminal in an axis direction end face side of stator core.
Adopt stator of the present invention, the winding end that only needs will drive with coil sandwiches between inside protrusions portion and the outside jut, and the winding end is remained on the insulator, does not expose to radial outside with the periphery with respect to stator core.
Description of drawings
Fig. 1 be the expression used an embodiment of the present invention stator motor one the example cutaway view.
Fig. 2 is the stereoscopic figure of the stator of an embodiment of the present invention.
Fig. 3 is a plane graph (vertical view or upward view) (but having omitted drive coil) of observing the stator of an embodiment of the present invention from axis direction.
Fig. 4 is the stereoscopic figure of cutting apart the structure that is wound with drive coil on the iron core across the insulator group.
Fig. 5 is an exploded perspective view of cutting apart unshakable in one's determination and insulator group.
Fig. 6 is a plane graph of observing engaging protrusion portion from the side.
Fig. 7 is the cutaway view (the A-A line cutaway view of Fig. 6) of engaging protrusion portion.
Fig. 8 is expression terminal drawing around one of structure routine sketch map of the winding of drive coil when (side) observes the stator of an embodiment of the present invention from the top.
Fig. 9 be expression when (the opposing party) observes the stator of an embodiment of the present invention from the below winding of drive coil terminal draw sketch map around an example of structure.
(symbol description)
1 stator
10 stator cores
12 cut apart iron core
12a, 12b (cutting apart unshakable in one's determination) axis direction end face
The 122 prominent utmost points
21 first insulators
22 second insulators
211 outer side covers portions
The face of the inboard of 2111 outer side covers portions
The face in the outside of 2112 outer side covers portions
212 coil coiling portions
24 engaging protrusion portions
241 inside protrusions portions
The front end calvus of 2411 inside protrusions portions
The 2411s inclined plane
The face of the inboard of 2412 inside protrusions portions
242 outside juts
The front end calvus of 2421 outside juts
The 2421s inclined plane
The face in the outside of 2422 inside protrusions portions
30 drive coils
32 windings are terminal
Embodiment
At first the example to the motor 90 of the stator 1 that used an embodiment of the present invention describes.Motor 90 shown in Figure 1 comprises stator 1 and rotor 92, and the two is housed in the motor field frame 94.Shown in the back was described in detail, stator 1 comprised stator core 10, insulator group 20 (first insulator 21 and second insulator 22) and drive coil 30, was fixed on the inboard of the motor field frame 94 of tubular through hot charging etc.Rotor 92 comprises: the rotor magnet 922 on the rotating shaft 921 of extending along axis direction in the inboard of stator 1, the outer peripheral face that is fixed on rotating shaft 921.Rotating shaft 921 supports to rotation freely by clutch shaft bearing that is positioned at outlet side 961 and second bearing 962 that is positioned at anti-outlet side (side opposite with outlet side), and the clutch shaft bearing 961 and second bearing 962 remain on respectively on the clutch shaft bearing frame 981 and second bearing bracket stand 982 that is fixed in motor field frame 94.When 30 power supplies of the drive coil of being had for stator 1, excitation is carried out in stator core 10, is disposed at stator 1 inboard rotor 92 and rotates.
(overall structure of stator)
A plurality of iron cores 12 of cutting apart are disposed in stator core 10 annularly.In this execution mode, stator core 10 has nine and cuts apart unshakable in one's determination 12.Respectively cutting apart unshakable in one's determination 12 has: to the outstanding prominent utmost point 122 of radially inner side (rotor 92 sides), with respect to this prominent utmost point 122 be formed on the outside outer circumferential side arc sections 121, be formed on inboard interior all side arc sections 123 with respect to the prominent utmost point 122.The prominent utmost point 122 is to see part in the form of a substantially rectangular from the outstanding plane of the interior circumferential radially inner side of outer circumferential side arc sections 121.Around this prominent utmost point 122, be wound with drive coil 30.Outer circumferential side arc sections 121 is the parts of extending to the form of circumferential expansion with from the outer circumferential side end of the prominent utmost point 122, is to form the part wideer than the prominent utmost point 122.Particularly, outer circumferential side arc sections 121 is to form roughly fan-shaped part with what the part with the outer circumferential side of the inner peripheral surface butt of motor field frame 94 cut.In all side arc sections 123 are the parts of extending to the form of circumferential expansion with interior all side ends from the prominent utmost point 122, be to form the part wideer than the prominent utmost point 122.Should in all side arc sections 123 for strengthen with rotor 92 relatively to the subtend area of stator 1 form.In addition, this to cut apart unshakable in one's determination 12 be through having the part bonding of the thin magnetic steel plate of a plurality of same shapes to form in the axis direction laminated.
Like Fig. 4 and shown in Figure 5, insulator group 20 is to cutting apart iron core 12, being wound on the parts that this prominent utmost point of cutting apart iron core 12 122 drive coil 30 on every side insulate.This insulator group 20 comprises: cover first insulator 21 on the axis direction end face 12a of cutting apart a side (upside) of unshakable in one's determination 12, cover second insulator 22 on the axis direction end face 12b of cutting apart the opposing party's (downside) of unshakable in one's determination 12, cover the 3rd insulator 23 (wherein, first insulator 21 and second insulator 22 are equivalent to insulator of the present invention) on the circumferential two sides of cutting apart iron core 12.
In addition, as hereinafter described, in this execution mode, first insulator 21 and second insulator 22 are same shapes, but in order both to be distinguished and to add that first, second carries out following explanation.In addition; The engaging protrusion portion 24 that is located on first insulator 21 and second insulator 22 waits each structure to have identical shape, function; Therefore, no matter be provided in a side of also being provided in a side of on second insulator 22 on first insulator 21, all mark prosign and describe.
First insulator 21 and second insulator 22 cover cuts apart unshakable in one's determination 12 axis direction end face 12a, 12b.In this execution mode, first insulator 21 and second insulator 22 have same shape.This first insulator 21 and second insulator 22 have: be formed on outermost, cover the outer side covers portion 211 of the axis direction end face cut apart unshakable in one's determination 12 outer circumferential side arc sections 121; Be formed on the inboard, cover the coil coiling portion 212 of the axis direction end face cut apart unshakable in one's determination 12 the prominent utmost point 122 with respect to this outer side covers portion 211; Be formed on the inboard, cover the inboard covering part 213 of the axis direction end face cut apart interior all side arc sections 123 of unshakable in one's determination 12 with respect to this coil coiling portion 212.See that from axis direction outer side covers portion 211 is in all and outer circumferential side arc sections 121 position overlapped of cutting apart unshakable in one's determination 12, cover the major part of the axis direction end face of outer circumferential side arc sections 121.That is, outer side covers portion 211 is not outstanding to radial outside with respect to stator core 10 (respectively cutting apart unshakable in one's determination 12).Coil coiling portion 212 is in sees from axis direction and to overlap the position of cutting apart on unshakable in one's determination 12 the prominent utmost point 122, covers axis direction end face whole of the prominent utmost point 122.Inboard covering part 213 is in from axis direction sees the position that overlaps on interior all side arc sections 123 of cutting apart iron core 12, the major part of the axis direction of all side arc sections 123 in the covering.In addition; Be formed with the installation portion 214 that extends along axis direction (first insulator 21 is along axis direction downwards, is to the top along axis direction in second insulator 22) from the inside edge of outer side covers portion 211, the both side edges of coil coiling portion 212 and the outer ledge of inboard covering part 213.First insulator 21 and second insulator 22 are installed in the form that upwards sandwiches the axis direction both ends of cutting apart iron core 12 in week through this installation portion 214 to be cut apart on unshakable in one's determination 12.
From circumferentially seeing; First insulator 21 and second insulator 22 are formed with outer side covers portion 211 and inboard covering part 213 from the both sides of coil coiling portion 212 with the form of holding up along axis direction (first insulator 21 be along axis direction to the top, be along axis direction downwards in second insulator 22).Drive coil 30 is wound between the outer side covers portion 211 and inboard covering part 213 that clips these coil coiling portion 212 both sides.
In addition, the axis direction end face from outer side covers portion 211 is formed with engaging protrusion portion 24 with the form of giving prominence to along axis direction.Engaging protrusion portion 24 has: be positioned at inboard inside protrusions portion 241, with this inside protrusions portion 241 relatively to and be positioned at the outside jut 242 in the outside with respect to inside protrusions portion 241.In this execution mode,, be formed with two groups of engaging protrusion portions 24 (inside protrusions portion 241 and each two respectively of outside juts 242) to an outer side covers portion 211.Be wound on the winding terminal 32 of cutting apart the drive coil 30 on unshakable in one's determination 12 maintaining between this inside protrusions portion 241 and the outside jut 242 across insulator group 20.The concrete structure of this engaging protrusion portion 24 will be narrated in the back.
In addition, between two groups of engaging protrusion portions 24, be formed with abreast along the outstanding winding tie part 25 of axis direction with inside protrusions portion 241 along the inner edge of outer side covers portion 211.Winding tie part 25 respectively is formed with one on each insulator (first insulator 21 and second insulator 22), be to be used to make the unflagging structure of lead at the Wire-wound that will constitute drive coil 30 in 122 last times of the prominent utmost point.That is, cut apart winding terminal 32 that the drive coil 30 on unshakable in one's determination 12 draws after suitably being banded on the winding tie part 25, accommodate, remain between inside protrusions portion 241 and the outside jut 242 from being wound on across insulator group 20.
In addition, on the peripheral side (plane radially) of outside covering part 211, be formed with and be used to make first insulator 21 to be connected to each other, to make second insulator, 22 structures connected to one another.Particularly,, on a peripheral side, be formed with the engaging recessed part 26 of depression established practice shaped respectively, on another peripheral side, be formed with the engaging protuberance 27 that protrudes the regulation shape for first insulator 21 and second insulator 22.
On engaging recessed part 26, be formed with peristome 262, be positioned at the inboard circular space portion 261 of peristome 262 as recess.The Breadth Maximum of peristome 262 (A/F of the maximum that refers to make progress in week, down with) is littler than the diameter of circular space portion 261.That is, engaging recessed part 26 forms the shape that peristome 262 sides are shunk.On engaging protuberance 27, be formed with circular projection 271, the Breadth Maximum contraction flow region 272 littler of front than the diameter of circular projection 271.That is, this engaging protuberance 27 also forms the shape that root side is shunk.Through in this engaging recessed part 26, engaging protuberance 27 engagings (particularly is the circular projection 271 that in the circular space portion 261 of engaging recessed part 26, embeds engaging protuberance 27; And sandwich the contraction flow region 272 of engaging protuberance 27 with the edge portion of the peristome 262 of engaging recessed part 26), insulator (first insulator 21 and second insulator 22) is connected to each other.Thus, be coated with and be maintained in ring-type cutting apart of insulator unshakable in one's determination 12.
The 3rd insulator 23 is the flat members that approach, and covers the face in the outside of two sides and interior all side arc sections 123 of the face of the inboard cut apart unshakable in one's determination 12 outer circumferential side arc sections 121, the prominent utmost point 122.The 3rd insulator 23 by the installation portion of first insulator 21 and second insulator 22 214 with cut apart unshakable in one's determination 12 and sandwich and be installed in and cut apart on unshakable in one's determination 12.
(structure of engaging protrusion portion)
The stator 1 of this execution mode is three-phase (U phase, V phase, W phase), nine utmost points (cut apart unshakable in one's determination 12 for nine and be configured to ring-type).Be wound on the winding of respectively cutting apart the drive coil 30 on unshakable in one's determination 12 terminal 32 (be wound on the prominent utmost point 122 and form the lead beyond the part of coil) and be drawn out to the upside or the downside of stator 1, by engaging protrusion portion 24 maintenances that are formed on first insulator 21 and second insulator 22.
As stated, engaging protrusion portion 24 has: be formed on radially inner side inside protrusions portion 241, be formed on outside juts 242 of radial outside relatively to ground with this inside protrusions portion 241.These inside protrusions portions 241 are outstanding formation with outside jut 242 because from outer side covers portion 211 along axis direction, so when axis direction is seen, all be overlapped in the outer side covers portion 211.Like this, when axis direction is seen, because outer side covers portion 211 all is overlapped in the stator core 10 (respectively cutting apart unshakable in one's determination 12), so inside protrusions portion 241 also all is overlapped in the stator core 10 (respectively cutting apart unshakable in one's determination 12) with outside jut 242.
As shown in Figure 6, be formed with the front end calvus 2411,2421 that is bent to form to direction adjacent to each other in inside protrusions portion 241 with outside jut 242 front end separately.Particularly, the front end calvus 2411 of inside protrusions portion 241 jut 242 laterally is bent to form, and the front end calvus 2421 of outside jut 242 is the curved one-tenth of jut 241 lateral bendings to the inside.Utilize this front end calvus 2411,2421, remain on terminal 32 difficult drop-offs of winding of the drive coil 30 between inside protrusions portion 241 and the outside jut 242.
In addition, front end calvus 2411 forms to its front end change big with the interval of front end calvus 2421.Particularly, the axis direction cross section of front end calvus 2411,2421 forms general triangular.Like this; Become big inclined plane 2411s, the general triangular of 2421s so long as be formed with front end calvus 2411,2421 interval to each other to the axis direction outside (front end), then just can be easily the winding end 32 of drive coil 30 be housed between inside protrusions portion 241 and the outside jut 242.
In addition, in order easily the winding of drive coil 30 terminal 32 to be housed between inside protrusions portion 241 and the outside jut 242, inside protrusions portion 241 forms the ability strain.That is, in desire with the winding of drive coil 30 terminal 32 from front end calvus 2411, when inserting between 2421, inside protrusions portion 241 makes front end calvus 2411, widens between 2421 to the radially inner side strain.Relative therewith, outside jut 242 forms as far as possible and is difficult to strain.Reason is; Outside jut 242 is the structures that are used to make the winding terminal 32 of drive coil 30 not expose to radial outside with respect to the periphery of stator core 10; Therefore, if the words that the power of widening to the outside that remains on the winding terminal 32 in the engaging protrusion portion 24 because of desire is out of shape are then not good.Particularly, be difficult to strain as long as form at least than inside protrusions portion 241.
In order to ensure " being easy to strain " and " being difficult to strain " of outside jut 242 of this inside protrusions portion 241, inside protrusions portion 241 forms following shape with outside jut 242.As shown in Figure 7, inside protrusions portion 241 forms the tabular that the cross section is a linearity except that the fore-end that is formed with front end calvus 2411.Particularly, face 2111 former states of the inboard of the outer side covers portion 211 of first insulator 21 and second insulator 22 form the shape that prolongs along axis direction as the face 2412 of the inboard of inside protrusions portion 241.That is, the face 2111 of the inboard of outer side covers portion 211 forms same with the face 2412 of the inboard of inside protrusions portion 241,, is not having to form same under the state of difference in height that is.Inside protrusions portion 241 best attenuate as far as possible under the situation of the intensity that can guarantee to be not easy breakage, plastic deformation (reliability).This is because can make inside protrusions portion 241 be easier to strain, and can strengthen the space of the winding terminal 32 of accommodating drive coil 30.
On the other hand, outside jut 242 forms the cross section and is circular-arc except that the fore-end that is formed with front end calvus 2421.That is, the face 2422 in the outside of outside jut 242 forms the cross section and is circular-arc.Particularly, face 2112 former states in the outside of the outer side covers portion 211 of first insulator 21 and second insulator 22 form the shape that prolongs along axis direction as the face 2422 in the outside of outside jut 242.That is, the face 2112 in the outside of outer side covers portion 211 forms same with the face 2422 in the outside of outside jut 242,, is not having to form same under the state of difference in height that is.Outside jut 242 is circular-arc owing to form the cross section like this, therefore, is difficult to radially distortion.In addition, circular-arc through the cross section is formed, thus if can not guarantee " being difficult to strain " fully, then suitably thickening outside jut 242 gets final product.In addition, in the scope that can guarantee sufficient " being difficult to strain ", if attenuate outside jut 242, then because accommodate the space increasing of the winding terminal 32 of drive coil 30, so preferable.
In addition, the face 2423 of the inboard of outside jut 242 forms parallel with plane C, this plane C with respect to along the utmost point 122 binary planes of will dashing forward of axis direction, be Fig. 3 and plane B quadrature shown in Figure 7.In addition, plane C is parallel with the face 2111 of the inboard of outer side covers portion 211.That is, the face 2423 of the inboard of outside jut 242 is parallel with the face 2111 of the inboard of outer side covers portion 211.In addition, the face 2423 of the inboard of the face 2412 in the face of the inboard of inside protrusions portion 241 and the outside of inside protrusions portion 241 and outside jut 211 is parallel.
In this execution mode; First insulator 21 and second insulator 22 that are formed with engaging protrusion portion 24 are identical shapes; First insulator 21 cover a side of cutting apart unshakable in one's determination 12 axis direction end face (on) side, second insulator 22 covers the opposing party (descending) side of the axis direction end face of cutting apart iron core 12.Therefore, can with the winding of drive coil 30 terminal 32 draw around to a side of the axis direction end face of stator core 10 (on) the opposing party (descending) these both sides of side of side and axis direction end face.
The winding of drive coil 30 terminal 32 for example can draw with being described below around.Fig. 8 and Fig. 9 be each drive coil 30 of expression winding terminal 32 draw figure around the summary of an example of structure.In Fig. 8 and Fig. 9, terminal 32 (32U) of the winding of U phase represent that with solid line terminal 32 (32V) of the winding of V phase dot, and terminal 32 (32W) of the winding of W phase represent with chain-dotted line.In addition, for the ease of understanding figure, stator core 10 and the thin dotted line of insulator group 20 usefulness are represented.In addition, in fact, the drive coil 30 of homophase and winding thereof terminal 32 are made up of a lead.
What constitute the U phase is to be wound on the drive coil 30U of cutting apart on unshakable in one's determination 12 for No. 1, No. 4, No. 7 among Fig. 8 and Fig. 9.A square tube that is wound on the terminal 32U of winding of cutting apart the drive coil 30U on unshakable in one's determination 12 for No. 1 is crossed between the engaging protrusion portion 24 that covers a side of cutting apart first insulator 21 on unshakable in one's determination 12 for No. 1 and is used as power line 321 and draws laterally.The opposing party of the terminal 32U of winding is drawn from the downside of stator core 10; And be connected with the end that is wound on a side of cutting apart the drive coil 30U on the iron core 12 for No. 4 through covering between the engaging protrusion portion 24 of cutting apart second insulator 22 on unshakable in one's determination 12 for No. 1～No. 4 (, only using a side engaging protrusion portion 24) for covering second insulator of cutting apart on unshakable in one's determination 12 for No. 1, No. 4 22.The terminal 32U of winding that draws from the end that is wound on the opposing party of cutting apart the drive coil 30U on unshakable in one's determination 12 for No. 4 through cover between the engaging protrusion portion 24 of cutting apart second insulator 22 on unshakable in one's determination 12 for No. 4～No. 7 (, only using a side engaging protrusion portion 24) for covering second insulator of cutting apart on unshakable in one's determination 12 for No. 4, No. 7 22 and be wound on the drive coil 30U of cutting apart for No. 7 on the iron core 12 and be connected.
What constitute the V phase is to be wound on the drive coil 30V of cutting apart on unshakable in one's determination 12 for No. 2, No. 5, No. 8 among Fig. 8 and Fig. 9.A square tube that is wound on the terminal 32V of winding of cutting apart the drive coil 30V on unshakable in one's determination 12 for No. 2 is crossed between the engaging protrusion portion 24 that covers a side of cutting apart first insulator 21 on unshakable in one's determination 12 for No. 2 and is used as power line 321 and draws laterally.The opposing party of the terminal 32V of winding is drawn from the downside of stator core 10; And be connected with the end that is wound on a side of cutting apart the drive coil 30V on the iron core 12 for No. 5 through covering between the engaging protrusion portion 24 of cutting apart second insulator 22 on unshakable in one's determination 12 for No. 2～No. 5 (, only using a side engaging protrusion portion 24) for covering second insulator of cutting apart on unshakable in one's determination 12 for No. 2, No. 5 22.The terminal 32V of winding that draws from the end that is wound on the opposing party of cutting apart the drive coil 30V on unshakable in one's determination 12 for No. 5 through cover between the engaging protrusion portion 24 of cutting apart second insulator 22 on unshakable in one's determination 12 for No. 5～No. 8 (, only using a side engaging protrusion portion 24) for covering second insulator of cutting apart on unshakable in one's determination 12 for No. 5, No. 8 22 and be wound on the drive coil 30V of cutting apart for No. 5 on the iron core 12 and be connected.
What constitute the W phase is to be wound on the drive coil 30W of cutting apart on unshakable in one's determination 12 for No. 3, No. 6, No. 9 among Fig. 8 and Fig. 9.A square tube that is wound on the terminal 32W of winding of cutting apart the drive coil 30W on unshakable in one's determination 12 for No. 3 is crossed between the engaging protrusion portion 24 that covers a side of cutting apart first insulator 21 on unshakable in one's determination 12 for No. 3, No. 2 (for covering first insulator of cutting apart on the iron core 12 for No. 3 21, only using a side engaging protrusion portion 24) and is used as power line 321 and draws laterally.The opposing party of the terminal 32W of winding is drawn from the downside of stator core 10; And be connected with the end that is wound on a side of cutting apart the drive coil 30W on the iron core 12 for No. 6 through covering between the engaging protrusion portion 24 of cutting apart second insulator 22 on unshakable in one's determination 12 for No. 3～No. 6 (, only using a side engaging protrusion portion 24) for covering second insulator of cutting apart on unshakable in one's determination 12 for No. 3, No. 6 22.The terminal 32W of winding that draws from the end that is wound on the opposing party of cutting apart the drive coil 30W on unshakable in one's determination 12 for No. 6 through cover between the engaging protrusion portion 24 of cutting apart second insulator 22 on unshakable in one's determination 12 for No. 6～No. 9 (, only using a side engaging protrusion portion 24) for covering second insulator of cutting apart on unshakable in one's determination 12 for No. 6, No. 9 22 and be wound on the drive coil 30W of cutting apart for No. 9 on the iron core 12 and be connected.
And; Be wound on No. 7 of constituting the U phase, constitute No. 8 of the V phase, constitute No. 9 of W phase and cut apart the side's of drive coil 30U on unshakable in one's determination 12,30V, 30W end (with power line 321 antipole property sides) and draw from the upside of stator core 10 respectively, and gather into one and constitute so-called bridging line 322.
Like this, the drive coil 30 (each mutually three drive coils 30) that constitutes each phase is connected in series through winding terminal 32.One side's of the drive coil 30 of each phase of formation that is connected in series winding terminal 32 is drawn as power line 321 laterally, and the opposing party's winding terminal 32 is drawn as bridging line 322 laterally, and is connected with power supply.Power supply (utilizing not shown control device etc.) switches the phase of carrying out excitation successively to any power line 321 supply capability.
(effect of this execution mode)
The stator 1 of an embodiment of the present invention of explanation has following technique effect above adopting.
In this execution mode; In the outer side covers portion 211 of insulator, be formed with to axis direction outstanding, have inside protrusions portion 241 and with this inside protrusions portion 241 relatively to the engaging protrusion portion 24 of outside jut 242, the winding of drive coil 30 terminal 32 remains between this inside protrusions portion 241 and the outside jut 242.And, to observe from axis direction, this inside protrusions portion 241 and outside jut 242 are positioned at and stator core 10 (respectively cutting apart unshakable in one's determination 12) position overlapped.Therefore, the winding terminal 32 that remains on the drive coil 30 between inside protrusions portion 241 and the outside jut 242 can not expose to radial outside with respect to the periphery of stator core 10.
Promptly; Adopt this execution mode; The winding terminal 32 of drive coil 30 is remained between inside protrusions portion 241 and the outside jut 242; Can prevent that winding terminal 32 from exposing to radial outside with respect to the periphery of stator core 10, thereby stator 1 is to the assembling of motor field frame 94 difficulty that can not become.In addition, can prevent that winding terminal 32 from contacting (between winding end 32 and motor field frame 94, can guarantee sufficient insulation distance) with motor field frame 94.
In addition, preferably, inside protrusions portion 241 and outside jut 242 upwards form in week as far as possible big (broad).Like this, the area that contacts with the winding terminal 32 of the drive coil of being accommodated 30 becomes big, therefore, prevents that terminal 32 peripheries with respect to stator core 10 of winding of drive coil 30 from further improving to the effect that radial outside exposes.
In addition; In this execution mode, inside protrusions portion 241 forms the ability strain, is out of shape to the inside through making inside protrusions portion 241; Push away the gap between inside protrusions portion 241 and the outside jut 242 wide; Thereby can the winding terminal 32 of drive coil 30 be housed between two claws, therefore, the operability that winding terminal 32 is housed between two claws is excellent.In addition; Because outside jut 242 forms with respect to inside protrusions portion 241 and is difficult to strain; Therefore; Can reduce the winding terminal 32 remain on the drive coil 30 between inside protrusions portion 241 and the outside jut 242 jut 242 radius vectors in the outside are pushed to foreign side, the risk that winding terminal 32 (and outside juts 242) exposes to radial outside with respect to the periphery of stator core 10.
Like this; Adopt this execution mode; The winding terminal 32 that can prevent drive coil 30 reliably exposes to radial outside with respect to the periphery of stator core 10, and can improve the operability that the winding end 32 with drive coil 30 is housed between inside protrusions portion 241 and the outside jut 242.
In addition; If the cross section with inside protrusions portion 241 as this execution mode forms linearity; The cross section of outside jut 242 is formed circular-arc, can construct easily then that inside protrusions portion 241 is easy to strain and outside jut 242 is difficult to the such structure of strain.
In addition; In this execution mode, the face in the outside of outside jut 242 2422 and cross section are that the face 2112 in the outside of circular-arc outer side covers portion 211 forms same, promptly; Do not having to form same under the state of difference in height; The face 2111 of the inboard of the outer side covers portion 211 that the face 2412 of the inboard of inside protrusions portion 241 and cross section are linearity forms same,, is not having to form same under the state of difference in height that is.Like this; If the face 2422 in the outside of outside jut 242 is shapes that face 2112 former states with the outside of outer side covers portion 211 prolong along axis direction; The face 2412 of the inboard of inside protrusions portion 241 is shapes that face 2111 former states of the inboard of outer side covers portion 211 are prolonged along axis direction; Then becoming side projecture part 242 and inside protrusions portion 241 and the intersection of outer side covers portion 211 does not outside have the shape of difference in height, and be shaped (processing) becomes easy.
In addition, the face 2423 of the inboard of outside jut 242 with respect to along the extremely binary plane of will dashing forward of axis direction B plane orthogonal C parallel.That is, the face 2423 of the inboard of outside jut 242 is parallel with the face 2111 of the inboard of outer side covers portion 211.Therefore; Compare with for example the face of the inboard of outside jut 242 being identically formed to the cross section is circular-arc situation with the face 2422 in the outside, remain on that the winding terminal 32 of the drive coil 30 between inside protrusions portion 241 and the outside jut 242 is more difficult to be exposed to radial outside with respect to the periphery of stator core 10.
In addition, the front end at inside protrusions portion 241 and outside jut 242 is formed with the front end calvus 2411,2421 that is bent to form to direction adjacent to each other respectively.Therefore, narrow down between the front end of the front end of inside protrusions portion 241 and outside jut 242, remain on terminal 32 difficult drop-offs of winding of the drive coil 30 between inside protrusions portion 241 and the outside jut 242 temporarily.
And, on the front end calvus that is formed at inside protrusions portion 241 and outside jut 242 respectively 2411,2421, be formed with inclined plane 2411s, 2421s that mutual interval is widened to the axis direction outside.If adopt this structure, the winding terminal 32 of drive coil 30 easily is contained between inside protrusions portion 241 and the outside jut 242.
Promptly; Front end calvus 2411,2421 forms following shape: make terminal 32 difficult drop-offs of the winding that temporarily remains on the drive coil 30 between inside protrusions portion 241 and the outside jut 242, and make the winding terminal 32 of drive coil 30 be easy to be contained between inside protrusions portion 241 and the outside jut 242.
In addition; In this execution mode; All be provided with engaging protrusion portion 24 in a side's of stator core 10 axis direction end face side and these both sides of axis direction end face side of the opposing party; Therefore, can accommodate the winding of various drive coils 30 terminal 32 (drive coil 30 that will constitute same phase is connected to each other that together winding is terminal, the winding terminal (so-called power line 321) that leads to mains side, a distolateral winding end (so-called bridging line 322) that gathers formation that will constitute out of phase drive coil 30) etc. efficiently.
More than execution mode of the present invention is specified, but the present invention is not limited to above-mentioned execution mode, can in the scope that does not break away from technological thought of the present invention, carry out various changes.
For example; In the above-described embodiment; To cover the side respectively cut apart on unshakable in one's determination 12 the axis direction (on) first insulator 21 on the side end face and second insulator 22 that covers on the opposing party (descending) side end face be illustrated for the situation of same shape; But also can form difformity, the side on the axis direction of stator (on) side end face and the opposing party (descending) side end face all be provided with engaging protrusion portion on the two.
In addition, the shape of inside protrusions portion 241 and outside jut 242 is not a tabular yet.Also rounded or square etc. shaft-like in cross section for example.In addition, the situation that two groups of engaging protrusion portions 24 are set to an insulator (first insulator 21 and second insulator 22) is illustrated, but also can be one group, also can be more than three groups.
Claims (11)
1. stator comprises: stator core, this stator core have to the radially outstanding a plurality of prominent utmost point; Insulator, this insulator cover on the axis direction end face of said stator core; And drive and to use coil, this driving with coil across said insulator be wound on the said prominent utmost point around, it is characterized in that,
Said insulator has: as the basic coil coiling portion of the coiling of said drive coil; And be formed on radial outside and see the outer side covers portion overlapping with said stator core from axis direction with respect to this coil coiling portion,
Be formed with to the outstanding engaging protrusion portion of axis direction in said outer side covers portion,
Said engaging protrusion portion have be positioned at inboard inside protrusions portion, with this inside protrusions portion relatively to outside jut,
Between said inside protrusions portion and said outside jut, keeping said driving terminal with the winding of coil.
2. stator as claimed in claim 1 is characterized in that,
Said inside protrusions portion forms can strain, and said outside jut forms than said inside protrusions portion and is difficult to strain.
3. stator as claimed in claim 2 is characterized in that,
It is the tabular of linearity that said inside protrusions portion forms the cross section, and the cross section of the face in the outside at least of said outside jut forms circular-arc.
4. stator as claimed in claim 3 is characterized in that,
The cross section of the face in the outside of said outer side covers portion forms circular-arc, and the inboard of said outer side covers portion forms the plane,
The face in the outside of said outside jut is that the face from the outside of said outer side covers portion prolongs and forms along axis direction,
The face of the inboard of said inside protrusions portion is that the face from the inboard of said outer side covers portion prolongs and forms along axis direction.
5. stator as claimed in claim 4 is characterized in that,
The face in the face in the outside of said outer side covers portion and the outside of said outside jut is in same with the state that does not have difference in height,
The face of the inboard of the face of the inboard of said outer side covers portion and said inside protrusions portion is in same with the state that does not have difference in height.
6. stator as claimed in claim 3 is characterized in that,
The face of the inboard of said outside jut and plane parallel with respect to the extremely binary plane along axis direction of will be said dashing forward.
7. stator as claimed in claim 3 is characterized in that,
The face of the inboard of said outside jut is parallel with the face of the inboard of said outer side covers portion.
8. stator as claimed in claim 3 is characterized in that,
The face in the outside of said inside protrusions portion is parallel with the face of the inboard of said outside jut.
9. stator as claimed in claim 1 is characterized in that,
Front end at said inside protrusions portion and said outside jut is formed with the front end calvus that is bent to form to direction adjacent to each other respectively.
10. stator as claimed in claim 9 is characterized in that,
On the said front end calvus that is formed at said inside protrusions portion and said outside jut respectively, be formed with the inclined plane that mutual interval is widened to the axis direction outside.
11. like each described stator in the claim 1 to 10, it is characterized in that,
The insulator of another axis direction end face that said engaging protrusion portion is formed on the insulator of an axis direction end face that covers said stator core and covers said stator core is on the two.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-216431 | 2010-09-28 | ||
| JP2010216431A JP2012075215A (en) | 2010-09-28 | 2010-09-28 | Stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102437664A true CN102437664A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103064124A Pending CN102437664A (en) | 2010-09-28 | 2011-09-27 | Stator |
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| Country | Link |
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| JP (1) | JP2012075215A (en) |
| CN (1) | CN102437664A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104218698A (en) * | 2013-06-03 | 2014-12-17 | 三菱电机株式会社 | Rotation motor stator, rotation motor and manufacturing method of rotation motor |
| CN104638798A (en) * | 2013-11-07 | 2015-05-20 | 广东美的环境电器制造有限公司 | Stator assembly for motors and preparation method thereof |
| CN106655554A (en) * | 2015-10-30 | 2017-05-10 | 尼得科电机有限公司 | End cap used for external rotor motor |
| CN108141095A (en) * | 2015-09-02 | 2018-06-08 | 日立汽车系统工程株式会社 | Brushless motor |
| CN109586428A (en) * | 2017-09-29 | 2019-04-05 | 日本电产株式会社 | Motor and stator |
| CN111817468A (en) * | 2019-04-11 | 2020-10-23 | 日本电产三协株式会社 | Motor, pump device, and method for manufacturing motor |
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| JP6987235B2 (en) * | 2018-05-24 | 2021-12-22 | 三菱電機株式会社 | A stator and a motor equipped with the stator |
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| CN104218698A (en) * | 2013-06-03 | 2014-12-17 | 三菱电机株式会社 | Rotation motor stator, rotation motor and manufacturing method of rotation motor |
| CN104218698B (en) * | 2013-06-03 | 2017-11-03 | 三菱电机株式会社 | The manufacture method of the stator of electric rotating machine, electric rotating machine and electric rotating machine |
| CN104638798A (en) * | 2013-11-07 | 2015-05-20 | 广东美的环境电器制造有限公司 | Stator assembly for motors and preparation method thereof |
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| CN108141095A (en) * | 2015-09-02 | 2018-06-08 | 日立汽车系统工程株式会社 | Brushless motor |
| CN106655554A (en) * | 2015-10-30 | 2017-05-10 | 尼得科电机有限公司 | End cap used for external rotor motor |
| CN109586428A (en) * | 2017-09-29 | 2019-04-05 | 日本电产株式会社 | Motor and stator |
| CN109586428B (en) * | 2017-09-29 | 2021-03-05 | 日本电产株式会社 | Motor and stator |
| CN111817468A (en) * | 2019-04-11 | 2020-10-23 | 日本电产三协株式会社 | Motor, pump device, and method for manufacturing motor |
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| JP2012075215A (en) | 2012-04-12 |
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Application publication date: 20120502 |