CN103997136A - Rotation motor and air blower having the same - Google Patents
Rotation motor and air blower having the same Download PDFInfo
- Publication number
- CN103997136A CN103997136A CN201310337933.5A CN201310337933A CN103997136A CN 103997136 A CN103997136 A CN 103997136A CN 201310337933 A CN201310337933 A CN 201310337933A CN 103997136 A CN103997136 A CN 103997136A
- Authority
- CN
- China
- Prior art keywords
- insulating part
- stator
- rotor
- wall portion
- electric rotating
- Prior art date
- 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.)
- Pending
Links
Abstract
The invention provides a rotation motor and an air blower having the same, which can not only inhibit the reduction of the coil space and increase of the cost, but also can inhibit the inner diameter of the insulation member from exposing from the inner diameter side end of the resin which is molded. The rotation motor has a rotor which can be freely rotated, a stator which has a plurality of iron pole pieces, the insulation member installed on the iron pieces, a coil wound on the iron pole by the insulator member to make the rotor to rotate, and a housing which is molded to be integrated with the stator and contain the stator. The insulation member has a wall portion, the outer side of which is opposite to the coil and the inner side of which is opposite to the outer circumference surface of the rotor, and the wall has a cutting portion communicating with the coil side and the rotor side.
Description
Technical field
The present invention relates to electric rotating machine and possess the air blast of this electric rotating machine, especially relate to the insulating part on the stator that is arranged on electric rotating machine.
Background technology
The stator of electric rotating machine has by lamination multiple and utilizes the lamellar silicon steel plate that the stamping-outs such as punching press go out and utilize riveted joint, welding etc. to be fixed the pole piece (laminated type iron core) forming.On this pole piece, be wound with coil with the state that insulating part has been installed, to guarantee the insulation of pole piece and coil.In addition, by winding around to high-density on the pole piece insulating part has been installed, can realize high efficiency, high capacity, miniaturization of electric rotating machine etc.
This stator that has been wound around coil utilizes resin to carry out mould-forming sometimes.Thereby can positively carry out " location of coil ", can guarantee " insulation between adjacent windings " simultaneously.
As this method, propose to have and for example carried out molding, until the scheme (referring to Patent Document 1) of the electric rotating machine of the stator of the end face of pole piece internal side diameter.
Patent documentation 1: TOHKEMY 2007-312560 communique (for example Fig. 4)
As the technology described in patent documentation 1, make the internal side diameter end face of insulating part than the internal side diameter end face of pole piece more in the outer part, make resin flow into the part of more leaning on internal side diameter than the internal side diameter end face of insulating part, this internal side diameter part is fixed by resin.
In addition, flow into the internal side diameter end face of insulating part by the resin squeezing in molding die, thereby insulating part is subject to the squeeze pressure of this resin and is out of shape, insulating part is likely from being exposed by the internal side diameter end face of the resin of molding.Thereby likely occur cannot realize " location of coil " and can not guarantee situation that " insulation between adjacent windings " is such etc.
As the technology as described in patent documentation 1, there is following problem, if the internal side diameter end face that is: makes insulating part than the internal side diameter end face of pole piece more by outside diameter set the position of insulating part, the size that needs to dwindle insulating part, the space of winding around will correspondingly be reduced.
In addition, also considered such method, that is: the squeeze pressure when increasing the thickness of insulating part to making the internal side diameter of insulating part be not easy because of mould-forming is bending, thereby guarantees intensity.But even if the method also exists following problem, that is: the increase of insulating part thickness has not only correspondingly reduced the space of winding around, has also increased the production cost of insulating part.
Summary of the invention
The present invention forms in order to solve above-mentioned problem, object is to provide and can both suppresses coil space minimizing and cost increase, can suppress again the internal side diameter of insulating part from the electric rotating machine being exposed by the internal side diameter end face of the resin of molding and the air blast that possesses this electric rotating machine.
Electric rotating machine of the present invention possesses: rotor, and this rotor is configured to rotate freely; Stator, this stator has multiple pole pieces, is arranged on the insulating part on pole piece and is wrapped in the coil on pole piece via insulating part, and makes rotor; Shell, this shell is by mould-forming and integrated with stator, and receives stator; Insulating part has wall portion, and in opposite directions, and the medial surface of this wall portion and the outer peripheral face of rotor are in opposite directions for the lateral surface of this wall portion and coil, and wall portion has the notch that coil sides is communicated with rotor-side.
According to electric rotating machine of the present invention, owing to having said structure, therefore can both suppress coil space minimizing and cost increases, and can suppress again the internal side diameter of insulating part from being exposed by the internal side diameter end face of the resin of molding.
Brief description of the drawings
Fig. 1 is the integrally-built schematic diagram that represents the electric rotating machine of embodiments of the present invention.
Fig. 2 is the sectional view of having dismantled the state of the propeller type fan shown in Fig. 1, is along axial sectional view.
Fig. 3 is the vertical view of the radial parallel of the stator that forms with composite poles sheet.
Fig. 4 sees from the radially inner side of stator the stereogram that forms the pole piece that uses of stator.
Fig. 5 sees from the radially inner side of stator the stereogram that the structure of insulating part has been installed at the pole piece shown in Fig. 4.
Fig. 6 is the figure that represents insulating part among the insulating part of electric rotating machine of embodiments of the present invention, propeller type fan side.
Fig. 7 is the figure that represents insulating part among the insulating part of electric rotating machine of embodiments of the present invention, propeller type fan opposition side.
Fig. 8 is the sectional view of the state while representing stator mould-forming.
Embodiment
Describe with regard to embodiments of the present invention based on accompanying drawing below.
Execution mode.
Fig. 1 is the integrally-built schematic diagram that represents the electric rotating machine 1 of execution mode.Fig. 2 is the sectional view of having dismantled the state of the propeller type fan 101 shown in Fig. 1, is the axial sectional view along axle 8.Fig. 3 is the vertical view of the radial parallel of the stator 2 of formation with composite poles sheet 4.In addition, in Fig. 3, omitted the processing of the tag wire of coil 15.Describe with regard to general structure of electric rotating machine 1 etc. referring to figs. 1 to Fig. 3.
The electric rotating machine 1 of present embodiment has carried out such improvement, that is: both having suppressed coil space minimizing and cost increases, and prevents that again the internal side diameter of insulating part 14a, 14b is from being exposed by the internal side diameter end face of the resin of molding.
[structure explanation]
Electric rotating machine 1 for example combines with propeller type fan 101 and forms air blast 100 etc.
Electric rotating machine 1 possesses: the axle 8 that a side is connected with propeller type fan 101; Storage is arranged on the motor housing 5 of various parts on electric rotating machine 1 etc.; The rotor rotating freely 3 being connected with the opposite side of axle 8; There is the pole piece 4 of arranging radially the stator 2 that rotor 3 is rotated; And can rotate freely clutch shaft bearing 9a and the second bearing 9b of ground back shaft 8.
In addition, electric rotating machine 1 possesses: for detection of the printed circuit board (PCB) 12 of rotating speed of rotor 3 etc.; And the printed circuit board (PCB) retainer 13 of maintenance printed circuit board (PCB) 12.
In addition, in present embodiment 1, electric rotating machine 1 is for example brushless direct-current (DC) motor, describes as example.And it is upper that electric rotating machine 1 is for example arranged on the off-premises station of air regulator etc., for driving the propeller type fan 101 using to the heat exchanger supply air in off-premises station, describe as example.
(propeller type fan 101 and axle 8)
One distolateral connection of propeller type fan 101 and axle 8, be passed the rotation of axle 8 and be rotated.The blade part 101B that propeller type fan 101 has the 101A of hub portion of connecting axle 8 and extends to form radially from the 101A of hub portion.
In addition, in the present embodiment, although be illustrated as an example of propeller type fan 101 example, be not limited to this, also can adopt fan according to purposes.That is, do not adopt propeller type fan, but adopt Sirocco fan or turbofan etc.
One of axle 8 is distolaterally connected with propeller type fan 101, and another is distolateral is connected with rotor 3 with the second bearing 9b by clutch shaft bearing 9a.In addition, axle 8 is pressed into rotor 3, is fixed on rotor 3.
Axle 8 by clutch shaft bearing 9a and the second bearing 9b free to rotate support, the revolving force of rotor 3 is passed, and carries out axle rotation.As depicted in figs. 1 and 2, although a side of axle 8 is arranged on outside motor housing 5, opposite side is incorporated in motor housing 5.
(motor housing 5)
Motor housing 5 is accommodated with stator 2, rotor 3, clutch shaft bearing 9a, the second bearing 9b, printed circuit board 12 and printed circuit board retainer 13 etc.
Motor housing 5 has the housing 6 of storage stator 2 and is arranged on the bracket cover 11 of the second bearing 9b side among housing 6.
Housing 6 be for example paper upside sealing, paper downside open have bottom tube-like parts, a storage stator 2.
On housing 6, be formed with the wall portion 16 that clutch shaft bearing 9a is set.In addition, when the open sides of housing 6 arranges the second bearing 9b, bracket cover 11 is set to seal this open sides., in the space being formed by housing 6 and bracket cover 11, receive stator 2, rotor 3, clutch shaft bearing 9a and the second bearing 9b etc.
Housing 6 utilizes moulding resin and stator 2 to be configured as one., housing 6 is, although block the outer peripheral face side of stator 2 by the inner peripheral surface side of housing 6, the inner peripheral surface side of stator 2 to be exposed by ester moulding.In addition, housing 6 also can be made up of heat-curing resins such as unsaturated polyester (UP)s.
Bracket cover 11 is installed on housing 6, for the open sides of closure casing 6, has the bearing case 7 of receiving the second bearing 9b and the locational in opposite directions metallic plate lid 10 that is arranged on bearing case 7.
Bearing case 7 is received the second bearing 9b, has the recess 7a of the second bearing 9b and the planar portions 7b stretching out in the plane vertical with axle 8 from the peripheral side of recess 7a are set with extending.
In addition, bearing case 7 is the same with housing 6, can be made up of heat-curing resins such as unsaturated polyester (UP)s.
In addition, the opening being communicated with inside and outside planar portions 7b forms the space being formed by housing 6 and bearing case 7.By forming this opening at planar portions 7b, can be by for rotor 3 is rotated, the distribution 7c for induced current etc. is pulled into stator 2.
Metallic plate lid 10 is installed opposite to each other with the planar portions 7b of bearing case 7., the open sides of housing 6 utilizes bearing case 7 and metallic plate lid 10 to seal.
(rotor 3)
Rotor 3 has the magnet 3A that is arranged on outer circumferential side, can be rotated freely and be supported by axle 8.In addition, magnet 3A is for example made up of permanent magnet etc.Rotor 3 has: " with the inner peripheral surface of stator 2 outer peripheral face in opposite directions ", " as with the face of the clutch shaft bearing 9a side of the orthogonal face of this outer peripheral face be clutch shaft bearing side " and " as with the i.e. second bearing side of face of the second bearing 9b side of the orthogonal face of outer peripheral face ".
In addition, the state that rotor 3 is supported by axle 8 to form the compartment of terrain of setting in advance between the outer peripheral face at rotor 3 and the inner peripheral surface of stator 2, is incorporated in housing 6 and bracket cover 11.
In addition, on rotor 3, formed the through hole corresponding with the diameter of axle 8 for connecting axle 8 at central portion.Therefore, clutch shaft bearing side and the second bearing side form roughly circle shape.
Once the coil 15 to stator 2 described later is powered, rotation after rotor 3 just interacts with the permanent magnet that is arranged on self inside.
(stator 2)
Stator 2 is pipes, have for the electric current of never illustrated power supply supply and carry out mobile coil 15 and the insulating part 14a for this coil 15 is insulated, and, although not shown in Fig. 1 to Fig. 3, also there is the pole piece 4 that multiple electromagnetic steel plates of lamination form and be arranged on insulating part 14b(on this pole piece 4 with reference to figure 5).
As shown in Figure 3, the pole piece 4 of insulating part 14a, 14b being installed is configured to annular, forms stator 2.And coil 15 is wrapped on the pole piece 4 that insulating part 14a, 14b have been installed.At the inner side of the annular part of this stator 2 configuration rotor 3.
In addition, stator 2 is being put under the state of the prior mould of having set shape, formed housing 6 by squeezing moulding resin.Insulating part 14a, 14b have been carried out suppressing the improvement that following situation occurs, that is: the pressure of the moulding resin by this squeezing makes the internal side diameter of insulating part 14a, 14b from being exposed by the internal side diameter of the stator 2 of molding.
In Fig. 4 to Fig. 7 described later, be specifically described with regard to stator 2.
(clutch shaft bearing 9a and the second bearing 9b)
Clutch shaft bearing 9a and the second bearing 9b can rotate freely another of ground back shaft 8 distolateral.More specifically, the ratio rotor 3 among clutch shaft bearing 9a back shaft 8 more leans on the part of propeller type fan 101 sides, another distolateral end of the second bearing 9b back shaft 8.
In addition, clutch shaft bearing 9a is incorporated in the wall portion 16 of housing 6.In addition, the second bearing 9b is incorporated in the recess 7a of bearing case 7.
(printed circuit board 12 and printed circuit board retainer 13)
Printed circuit board 12, for detection of rotating speed of rotor 3 etc., has been installed the Hall element of the position of magnetic pole of detection rotor 3.Printed circuit board 12 is waited and is fixed on printed circuit board retainer 13 by welding.
Printed circuit board retainer 13 is arranged between the end face and bearing case 7 of rotor 3., printed circuit board retainer 13 is arranged between the second bearing side and the planar portions 7b of bearing case 7 of rotor 3.
Fig. 4 sees from the radially inner side of stator 2 stereogram that forms the pole piece 4 that uses of stator 2.Fig. 5 sees from the radially inner side of stator 2 stereogram that the structure of insulating part 14a, 14b has been installed at the pole piece 4 shown in Fig. 4.Fig. 6 is the figure that represents the insulating part 14a of propeller type fan 101 sides among the insulating part of electric rotating machine 1 of execution mode.Fig. 7 is the figure that represents the insulating part 14b of the side contrary with propeller type fan 101 among the insulating part of electric rotating machine 1 of execution mode.
In addition, Fig. 6 (a) is the figure that sees insulating part 14a from clutch shaft bearing 9a side, and Fig. 6 (b) is the figure seeing from the side side of insulating part 14a, and Fig. 6 (c) is the figure seeing from the internal side diameter of insulating part 14a.
In addition, Fig. 7 (a) is the figure seeing from the internal side diameter of insulating part 14b, and Fig. 7 (b) is the figure seeing from the side side of insulating part 14b, and Fig. 7 (c) is the figure that sees insulating part 14b from the second bearing 9b side.
Stator 2 has: multiple electromagnetic steel sheets of lamination and the pole piece 4 that obtains; Be arranged on insulating part 14a, 14b for pole piece 4 and coil 15 are insulated on pole piece 4; And be wrapped in the coil 15 on insulating part 14a, 14b.In addition, in Fig. 4 to Fig. 7, omitted coil 15.
(pole piece 4)
Pole piece 4 is by utilizing riveted joint and welding etc. to be fixed the laminated type iron core forming after multiple electromagnetic steel plates of direction lamination along identical with the axle 8 of Fig. 1.In addition, multiple pole pieces 4 are configured to annular (with reference to figure 3), but in the present embodiment, describe as an example of the situation that is provided with 12 pole pieces 4 example.
Pole piece 4 has the yoke portion 41 of the outer peripheral face side that forms stator 2 and the tooth portion 42 forming highlightedly to the internal side diameter of stator 2 from this yoke portion 41.
Yoke portion 41 is for example arc-shaped part, is formed with for fixture being arranged on to the rear slot part 43 on stator 2 in the time processing stator 2 at lateral surface.Making the medial surface of yoke portion 41 and the outside diameter part butt of insulating part 14a, 14b is arranged on insulating part 14a, 14b on pole piece 4., yoke portion 41 compares insulating part 14a, 14b and is positioned at outside diameter.
Tooth portion 42 has the bend 42a and distolateral the connection with bend 42a and another distolateral connecting portion 42b being connected with yoke portion 41 that are arranged on a side relative with the outer peripheral face of rotor 3.
Bend 42a is the state before stator 2 is carried out to mould-forming as shown in Figure 4, and is the part that arrives the internal side diameter of stator 2 under the state on pole piece 4 insulating part 14a, 14b have been arranged on.Making the lateral surface of bend 42a and the internal side diameter part butt of insulating part 14a, 14b is arranged on insulating part 14a, 14b on pole piece 4.
Connecting portion 42b is the part for winding around 15., connecting portion 42b is wound with lattice coil 15 via insulating part 14a, 14b.
In addition, in the present embodiment, be illustrated as an example of the situation that is provided with 12 pole pieces 4 example, but be not limited to this.For example, the structure of the state of multiple pole pieces 4 that can be connected, also can be used the structure of the state that has connected all pole pieces 4.
In addition, in the present embodiment, be illustrated as an example of the structure of pole piece 4 multiple electromagnetic steel plates that are laminations example, but be not limited to this, also can use the electromagnetic steel plate equating with the thickness of lamination state.
(insulating part 14a, 14b)
Insulating part 14a is installed in the part of propeller type fan 101 sides among pole piece 4, for guaranteeing the insulation of coil 15 and pole piece 4.
Insulating part 14a has: the yoke fitting portion 142a that is arranged on yoke portion 41 sides of pole piece 4; With the connecting portion 42b butt of pole piece 4 the tooth fitting portion 141a that arranges; And be arranged on the 146a of wall portion of the bend 42a side of pole piece 4.
In addition, insulating part 14a, 14b for example can be made up of thermoplastic resin.
Yoke fitting portion 142a forms the part of the outside diameter among insulating part 14a.And insulating part 14a is installed on pole piece 4 with the lateral surface of yoke fitting portion 142a and the state of yoke portion 41 butts.At the lateral surface of yoke fitting portion 142a, be formed for receiving coil 15 winding beginning, be wound around the coil accommodating groove 143a of the terminal part etc. of latter end, coil 15.
In addition, as shown in Figure 5, yoke fitting portion 142a is configured to the part butt of the clutch shaft bearing 9a side of the part of the second bearing 9b side and the yoke fitting portion 142b of insulating part 14b described later.
Tooth fitting portion 141a is formed and connects yoke fitting portion 142a and the 146a of wall portion.Tooth fitting portion 141a is configured to cover the face of propeller type fan 101 sides among connecting portion 42b.
In addition, as shown in Figure 5, the part butt of the part of the second bearing 9b side of tooth fitting portion 141a and the clutch shaft bearing 9a side of the tooth fitting portion 141b of insulating part 14b described later.
The 146a of wall portion forms the part of the internal side diameter among insulating part 14a, and the coil 15 being wrapped on tooth fitting portion 141a is guided from the side side of coil 15.
Insulating part 14a is installed on pole piece 4 under the medial surface of the 146a of wall portion and the state of bend 42a butt.More specifically, the 146a of wall portion is arranged on the inner peripheral surface side of stator 2 like this, that is: lateral surface and coil 15 are in opposite directions time, and medial surface is come the outer peripheral face side of rotor 3.At the medial surface of the 146a of wall portion, be formed for receiving coil 15 winding beginning, be wound around the coil accommodating groove 144a of the terminal part etc. of latter end, coil 15.
In addition, as shown in Figure 5, the 146a of wall portion is configured to the part butt of the clutch shaft bearing 9a side of the part of the second bearing 9b side and the 146b of wall portion of insulating part 14b described later.
The 146a of wall portion has the notch 145a forming in the direction of clutch shaft bearing 9a side from the second bearing 9b side direction., notch 145a is formed in the mode that is communicated with coil 15 sides and rotor 3 sides the direction of clutch shaft bearing 9a side from the second bearing 9b side direction.
This notch 145a is formed in order in the time utilizing moulding resin to carry out molding to stator 2, makes the thinner wall section 17(of internal side diameter that moulding resin is filled into pole piece 4 more swimmingly with reference to figure 8).Therefore, the 146a of wall portion is configured to via the outer peripheral face of thinner wall section 17 and rotor in opposite directions.Describe in Fig. 8 described later about this thinner wall section 17.
At this, be the degree of depth of notch 145a by the dimension definitions of the notch 145a of the direction of clutch shaft bearing 9a side from the second bearing 9b side direction.For example, the degree of depth of notch 145a can be set as playing outermost distance with the innermost layer among coil 15 and form notch 145a.By like this, both can keep the intensity of the 146a of wall portion, can make again the resin squeezing by mould-forming flow swimmingly.
In addition, by the direction of the medial surface along the 146a of wall portion and be the width of notch 145a with the dimension definitions of the notch 145a of the circumferential corresponding direction of stator 2.And, by the direction of the medial surface along the 146a of wall portion and be the width of the 146a of wall portion with the dimension definitions of the 146a of wall portion of the circumferential corresponding direction of stator 2.
The width of notch 145a can be set below the half of the 146a of wall-forming portion.In addition, in the present embodiment, owing to having formed two notch 145a on the 146a of wall portion, the width that therefore two notch 145a can be added up is set below the half of the 146a of wall-forming portion.By like this, can both keep the intensity of the 146a of wall portion, can make again the resin squeezing by mould-forming flow swimmingly.
In addition, also the width of notch 145a can be set between coil 15 sides and rotor 3 sides and change.That is, notch 145a for example can be formed as taper, makes the width of rotor 3 sides (internal side diameter) be greater than the width of coil 15 sides (outside diameter).By like this, can make the resin squeezing by mould-forming flow swimmingly.
Yoke fitting portion 142a, the tooth fitting portion 141a of insulating part 14b and insulating part 14a and the 146a of wall portion have yoke fitting portion 142b, tooth fitting portion 141b and the 146b of wall portion accordingly.
Yoke fitting portion 142b forms the part of the outside diameter among insulating part 14b.And insulating part 14b is installed on pole piece 4 under the lateral surface of yoke fitting portion 142b and the state of yoke portion 41 butts.At the lateral surface of yoke fitting portion 142b, be formed for receiving coil 15 winding beginning, be wound around the coil accommodating groove 143b of the terminal part etc. of latter end, coil 15.
In addition, as shown in Figure 5, yoke fitting portion 142b is configured to the part butt of the second bearing 9b side of the part of clutch shaft bearing 9a side and the yoke fitting portion 142a of insulating part 14a.
Tooth fitting portion 141b is formed as connecting yoke fitting portion 142b and the 146b of wall portion.Tooth fitting portion 141b is configured to cover the face of the second bearing 9b side among connecting portion 42b.
In addition, as shown in Figure 5, the part butt of the part of the clutch shaft bearing 9a side of tooth fitting portion 141b and the second bearing 9b side of the tooth fitting portion 141a of insulating part 14a.
Like this, utilize tooth fitting portion 141a and tooth fitting portion 141b to cover peripherally insulating part 14a and insulating part 14b being arranged on pole piece 4 of connecting portion 42b of pole piece 4.
The 146b of wall portion forms the part of the internal side diameter among insulating part 14b, and the coil 15 being wrapped on tooth fitting portion 141b is guided from the side side of coil 15.
Insulating part 14b is installed on pole piece 4 under the medial surface of the 146b of wall portion and the state of bend 42a butt.More specifically, the 146b of wall portion is arranged on the inner peripheral surface side of stator 2 like this, that is: lateral surface and coil 15 are in opposite directions time, and medial surface is come the outer peripheral face side of rotor 3.
In addition, as shown in Figure 5, the 146b of wall portion is configured to the part butt of the second bearing 9b side of the part of clutch shaft bearing 9a side and the 146a of wall portion of insulating part 14a.
The 146b of wall portion has the notch 145b forming in the direction of the second bearing 9b side from clutch shaft bearing 9a side direction., notch 145b is formed in the mode that is communicated with coil 15 sides and rotor 3 sides the direction of the second bearing 9b side from clutch shaft bearing 9a side direction.
This notch 145b is formed in order in the time utilizing moulding resin to carry out molding to stator 2, makes the thinner wall section 18(of internal side diameter that moulding resin is filled into pole piece 4 more swimmingly with reference to figure 8).Therefore, the 146b of wall portion is configured to via the outer peripheral face of thinner wall section 18 and rotor 3 in opposite directions.In addition, describe in Fig. 8 described later about this thinner wall section 18.
At this, be the degree of depth of notch 145b by the dimension definitions of the notch 145b of the direction of the second bearing 9b side from clutch shaft bearing 9a side direction.For example, the degree of depth of notch 145b can be set for the innermost layer among coil 15 and play outermost distance formation notch 145b.By like this, both can keep the intensity of the 146b of wall portion, can make again the resin squeezing by mould-forming flow swimmingly.
In addition, by the direction of the medial surface along the 146b of wall portion and be the width of notch 145b with the dimension definitions of the notch 145b of the circumferential corresponding direction of stator 2.And, by the direction of the medial surface along the 146b of wall portion and be the width of the 146b of wall portion with the dimension definitions of the 146b of wall portion of the circumferential corresponding direction of stator 2.
The width of notch 145b can be set below the half of the 146b of wall-forming portion.By like this, can both keep the intensity of the 146a of wall portion, can make again the resin squeezing by mould-forming flow swimmingly.
In addition, also the width of notch 145b can be set between coil 15 sides and rotor 3 sides and change.Notch 145b for example can be formed as taper, makes the width of rotor 3 sides (internal side diameter) be greater than the width of coil 15 sides (outside diameter).By like this, can make the resin squeezing by mould-forming flow swimmingly.
In addition, in the present embodiment, represent as an example using the situation that has formed two notch 145a on the 146a of wall portion at insulating part 14a, but also can form one, can also form more than three.
In addition, in the present embodiment, represent as an example using the situation that has formed a notch 145b on the 146b of wall portion at insulating part 14b, but also can form more than two.
In the present embodiment, be illustrated as an example of the situation that has been used in combination insulating part 14a that split is shaped and insulating part 14b example, but be not limited to this.For example also insulating part 14a and insulating part 14b can be formed in one piece.
(coil 15)
Coil 15 is wrapped in each of 12 pole pieces 4, for example, use copper cash etc.When coil 15 is wrapped in the surrounding of tooth fitting portion 141a, 141b, the internal side diameter of stator 2 is supported by the 146a of wall portion, 146b, and the outside diameter of stator 2 is supported by yoke fitting portion 142a, 142b.
[about the mould-forming of stator 2]
Fig. 8 is the sectional view of the state while representing the mould-forming of stator 2.
Stator 2 is integrally formed by the resin squeezing from injection molding machine after being placed into the prior mould A that has set shape.The resin part being squeezed is corresponding with housing 6.Just stator 2 is implemented with reference to figure 8 mould-forming time resin flows etc. describe.
Carry out the terminal processes of coil 15, to be formed as annular stator 2 position and make it with axle 20 chimeric insert, stator faces is placed on stator support 21.The resin of squeezing is filled in mould A by cast gate 19.
On the 146a of wall portion, the 146b that are installed in insulating part 14a, 14b on pole piece 4, form notch 145a, 145b, therefore, the resin that has passed through cast gate 19 flows into thinner wall section 17,18 via notch 145a, the 145b of insulating part 14a, 14b.
In addition, thinner wall section 17 is corresponding with the gap between locating shaft 20 and insulating part 14a.The resin, flowing in the gap being formed between " face (with reference to the P1 of figure 5) among the internal diameter side of the 146a of wall portion of insulating part 14a, that do not covered by the bend 42a of pole piece 4 " and " locating shaft 20 of Fig. 8 " forms thinner wall section 17.
In addition, thinner wall section 18 is corresponding with the gap between locating shaft 20 and insulating part 14b.The resin, flowing in the gap being formed between " face (with reference to the P2 of figure 5) among the internal diameter side of the 146b of wall portion of insulating part 14b, that do not covered by the bend 42a of pole piece 4 " and " locating shaft 20 of Fig. 8 " forms thinner wall section 17.
In addition, the cross sectional shape of thinner wall section 17 and thinner wall section 18 is annulars.
Therefore, the forming pressure can suppress because of mould-forming time causes the 146a of wall portion, the 146b of the internal side diameter of insulating part 14a, 14b to roll to locating shaft 20, and the internal diameter end face that can shorten pole piece 4 is the distance of bend 42a and the 146a of wall portion, 146b., can roll to thinner wall section 17,18 thickness that the amount of suppression falling suppresses thinner wall section 17,18 accordingly with the inhibition 146a of wall portion, 146b.
Like this, owing to can suppressing the thickness of the 146a of wall portion, 146b, therefore, the useful space of coil 15 can be increased, miniaturization and the high efficiency etc. of electric rotating machine 1 can be realized.
[effect that the electric rotating machine 1 of execution mode has]
The electric rotating machine 1 of present embodiment forms notch 145a, 145b on the 146a of wall portion, the 146b of internal side diameter that is formed at insulating part 14a, 14b.Therefore,, in the time utilizing resin to carry out molding to stator 2, moulding resin is easily at the 146a of wall portion, 146b and mould A(locating shaft 20) between Clearance Flow.Like this, can suppress the 146a of wall portion, 146b and be subject to forming pressure and topple over to the internal side diameter of stator 2, and can suppress it and expose from thinner wall section 17,18.
, the outside diameter that arrives stator 2 also can not set the 146a of wall portion, 146b for by the electric rotating machine 1 of present embodiment, reduces thereby can correspondingly suppress coil space.
In addition, the electric rotating machine 1 of present embodiment can also suppress the 146a of wall portion, 146b thickening, thereby can correspondingly suppress coil 15 to be wound into, space on insulating part 14a, 14b reduces, stator 2 maximizes and cost increases.
Description of reference numerals
1 electric rotating machine, 2 stators, 3 rotors, 3A magnet, 4 pole pieces, 5 motor housings, 6 housings, 7 bearing cases, 7a recess, 7b planar portions, 7c distribution, 8 axles, 9a clutch shaft bearing, 9b the second bearing, 10 metallic plate lids, 11 bracket covers, 12 printed circuit boards, 13 printed circuit board retainers, 14a insulating part (the first insulating part), 14b insulating part (the second insulating part), 15 coils, 16 wall portions, 17 thinner wall section, 18 thinner wall section, 19 cast gates, 20 locating shafts, 21 stator supports, 41 yoke portions, 42 tooth portions, 42a bend, 42b connecting portion, 43 rear slot parts, 100 air blasts, 101 propeller type fans, 101A hub portion, 101B blade part, 141a tooth fitting portion, 141b tooth fitting portion, 142a yoke fitting portion, 142b yoke fitting portion, 143a coil accommodating groove, 143b coil accommodating groove, 144a coil accommodating groove, 145a notch, 145b notch, 146a wall portion, 146b wall portion, A mould.
Claims (12)
1. an electric rotating machine, is characterized in that, possesses:
Rotor, this rotor is configured to rotate freely;
Stator, this stator has multiple pole pieces, is arranged on the insulating part on described pole piece and is wrapped in the coil on described pole piece via described insulating part, and makes described rotor; With
Shell, this shell is by mould-forming and integrated with described stator, and receives described stator;
Described insulating part has wall portion, and in opposite directions, and the medial surface of this wall portion and the outer peripheral face of described rotor are in opposite directions for the lateral surface of this wall portion and described coil,
Described wall portion has the notch that described coil sides is communicated with described rotor-side.
2. electric rotating machine according to claim 1, is characterized in that, described pole piece has:
Yoke portion, this yoke portion forms the outer peripheral face side of described stator; With
Tooth portion, this tooth portion is formed as from stator side described in described yoke portion side direction outstanding, is wound around described coil via described insulating part,
Described insulating part has:
Tooth fitting portion, this tooth fitting portion is configured to cover a part for described tooth portion, and is wound around around described coil;
Described wall portion, described wall portion is formed as extending in the rotating shaft direction of described rotor from the end of the described stator side of described tooth fitting portion;
Yoke fitting portion, this yoke fitting portion be formed as with described wall portion in opposite directions, and extend in the rotating shaft direction of described rotor from the end of the side contrary with described wall portion among described tooth fitting portion.
3. electric rotating machine according to claim 1, is characterized in that, described insulating part has:
Be arranged on the first insulating part of a side's of described pole piece end face side; With
Be arranged on the second insulating part of the opposing party's of described pole piece end face side,
Be formed with described notch at described the first insulating part and described the second insulating part both sides.
4. electric rotating machine according to claim 2, is characterized in that, described insulating part has:
Be arranged on the first insulating part of a side's of described pole piece end face side; With
Be arranged on the second insulating part of the opposing party's of described pole piece end face side,
Be formed with described notch at described the first insulating part and described the second insulating part both sides.
5. electric rotating machine according to claim 3, it is characterized in that, described insulating part is by by described the first insulating part and described the second insulating part is integrally formed forms, or described the first insulating part and described the second insulating part that are shaped by combination split form.
6. electric rotating machine according to claim 4, it is characterized in that, described insulating part is by by described the first insulating part and described the second insulating part is integrally formed forms, or described the first insulating part and described the second insulating part that are shaped by combination split form.
7. according to the electric rotating machine described in any one in claim 1 to 6, it is characterized in that, described notch forms to outermost distance with the innermost layer among described coil.
8. according to the electric rotating machine described in any one in claim 1 to 6, it is characterized in that, the direction of the medial surface along described wall portion of described notch and be the half of width of described wall portion with the width of the circumferential corresponding direction of described stator below.
9. according to the electric rotating machine described in any one in claim 1 to 6, it is characterized in that the direction of the medial surface along described wall portion of described notch and be formed as described rotor-side with the width of the circumferential corresponding direction of described stator and be greater than described coil sides.
10. according to the electric rotating machine described in any one in claim 1 to 6, it is characterized in that, described shell is made up of heat-curing resin,
Described insulating part is made up of thermoplastic resin.
11. electric rotating machines according to claim 10, is characterized in that, described shell is bottom tube-like, axle is connected in the structure of described rotor, possess:
Clutch shaft bearing, this clutch shaft bearing can rotate freely a side that supports the described rotor among described axle;
The second bearing, this second bearing can rotate freely the end of the opposite side that supports described axle; With
Bracket cover, this bracket cover has the bearing case of described the second bearing of storage and is arranged on the position in opposite directions of described bearing case and covers the metallic plate lid of the open side of described shell.
12. 1 kinds of air blasts, is characterized in that possessing:
According to the electric rotating machine described in any one in claim 1 to 11;
The axle being connected with the rotor of described electric rotating machine; With
Propeller type fan, this propeller type fan has the hub portion that is connected with a side end of described axle and be radiated entends from described hub portion the blade part forming.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-031350 | 2013-02-20 | ||
| JP2013031350A JP2014161185A (en) | 2013-02-20 | 2013-02-20 | Rotary electric machine and air blower including the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103997136A true CN103997136A (en) | 2014-08-20 |
Family
ID=51311194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310337933.5A Pending CN103997136A (en) | 2013-02-20 | 2013-08-06 | Rotation motor and air blower having the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2014161185A (en) |
| CN (1) | CN103997136A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453496A (en) * | 2016-05-30 | 2017-12-08 | 日本电产三协（浙江）有限公司 | Motor and pump installation |
| CN107453556A (en) * | 2016-05-30 | 2017-12-08 | 日本电产三协（浙江）有限公司 | Motor |
| CN112956110A (en) * | 2018-10-31 | 2021-06-11 | Lg伊诺特有限公司 | Electric machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320997A (en) * | 2000-04-21 | 2001-11-07 | 三星光州电子株式会社 | Resin moulded brushless DC motor and mfg. method thereof |
| CN1938922A (en) * | 2004-03-31 | 2007-03-28 | 大金工业株式会社 | Motor, blower, compressor and air conditioner |
| CN201163740Y (en) * | 2008-02-04 | 2008-12-10 | 中山大洋电机股份有限公司 | Stator structure of plastic packaging brushless DC motor |
| CN101449449A (en) * | 2006-05-22 | 2009-06-03 | 丰田自动车株式会社 | Insulator and rotating electric machine |
| CN202178625U (en) * | 2011-08-04 | 2012-03-28 | 中山大洋电机制造有限公司 | Motor with plastic housing |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1496596A4 (en) * | 2002-01-30 | 2007-12-05 | Mitsubishi Electric Corp | Stator of rotating electric motor |
| JP4200281B2 (en) * | 2003-02-19 | 2008-12-24 | パナソニック株式会社 | Molded motor |
| JP4339027B2 (en) * | 2003-06-16 | 2009-10-07 | 本田技研工業株式会社 | Stator |
| JP4737054B2 (en) * | 2006-11-30 | 2011-07-27 | トヨタ自動車株式会社 | Insulating member and stator |
| JP5113428B2 (en) * | 2007-05-31 | 2013-01-09 | 日本電産サンキョー株式会社 | Stator and motor |
| JP5463696B2 (en) * | 2009-03-09 | 2014-04-09 | 日産自動車株式会社 | Insulated bobbin, rotating electric machine stator, and method of manufacturing rotating electric machine stator |
| JP5751927B2 (en) * | 2011-05-13 | 2015-07-22 | 三菱電機株式会社 | Rotating electric machine and method of manufacturing stator used therefor |
-
2013
- 2013-02-20 JP JP2013031350A patent/JP2014161185A/en active Pending
- 2013-08-06 CN CN201310337933.5A patent/CN103997136A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320997A (en) * | 2000-04-21 | 2001-11-07 | 三星光州电子株式会社 | Resin moulded brushless DC motor and mfg. method thereof |
| CN1938922A (en) * | 2004-03-31 | 2007-03-28 | 大金工业株式会社 | Motor, blower, compressor and air conditioner |
| CN101449449A (en) * | 2006-05-22 | 2009-06-03 | 丰田自动车株式会社 | Insulator and rotating electric machine |
| CN201163740Y (en) * | 2008-02-04 | 2008-12-10 | 中山大洋电机股份有限公司 | Stator structure of plastic packaging brushless DC motor |
| CN202178625U (en) * | 2011-08-04 | 2012-03-28 | 中山大洋电机制造有限公司 | Motor with plastic housing |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453496A (en) * | 2016-05-30 | 2017-12-08 | 日本电产三协（浙江）有限公司 | Motor and pump installation |
| CN107453556A (en) * | 2016-05-30 | 2017-12-08 | 日本电产三协（浙江）有限公司 | Motor |
| CN107453556B (en) * | 2016-05-30 | 2023-11-17 | 日本电产三协（浙江）有限公司 | motor |
| CN107453496B (en) * | 2016-05-30 | 2024-03-08 | 日本电产三协（浙江）有限公司 | Motor and pump device |
| CN112956110A (en) * | 2018-10-31 | 2021-06-11 | Lg伊诺特有限公司 | Electric machine |
| CN112956110B (en) * | 2018-10-31 | 2024-03-12 | Lg伊诺特有限公司 | Motor with a motor housing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014161185A (en) | 2014-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103997145B (en) | Axial-flux electric machine | |
| CN104283336B (en) | Motor | |
| EP3176912B1 (en) | Stator and rotating machine | |
| JP5879121B2 (en) | Axial gap rotating electric machine | |
| CN204304673U (en) | Inner rotor motor | |
| CN106487161A (en) | Electric rotating machine | |
| US20140084734A1 (en) | Rotating Electrical Machine, Method for Manufacturing Magnetic Pole Piece | |
| US9369022B2 (en) | Electric motor and fuel pump using the same having circumferential holding grooves for beginning and end portions of coil windings | |
| CN105814779A (en) | Embedded permanent magnet-type rotating electrical machine | |
| EP2863516A1 (en) | Motor | |
| JP2011217434A (en) | Motor | |
| JP6545393B2 (en) | Conscious pole rotor, motor and air conditioner | |
| JP2009005421A (en) | Rotary electric machine | |
| EP2544335A2 (en) | Rotating electrical machine | |
| CN102457120B (en) | Motor and radiating fan formed by motor | |
| CN103997136A (en) | Rotation motor and air blower having the same | |
| JP6226654B2 (en) | Rotating electric machine and air conditioner equipped with the same | |
| JP2014107940A (en) | Squirrel-cage induction motor | |
| CN108292872B (en) | Rotor, motor, air conditioner, and method for manufacturing rotor | |
| JP5330860B2 (en) | Rotating electric machine | |
| JP5139892B2 (en) | motor | |
| JP6009937B2 (en) | Rotating machine | |
| JP2011234554A (en) | Electric motor | |
| JP2012039793A (en) | Brushless motor | |
| JP2014100037A (en) | Stator of rotary electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140820 |