CN101860102A - Motor device and method of producing the same - Google Patents
Motor device and method of producing the same Download PDFInfo
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- CN101860102A CN101860102A CN201010159855A CN201010159855A CN101860102A CN 101860102 A CN101860102 A CN 101860102A CN 201010159855 A CN201010159855 A CN 201010159855A CN 201010159855 A CN201010159855 A CN 201010159855A CN 101860102 A CN101860102 A CN 101860102A
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-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a motor device which can prevent the scattering of driving magnet even at a state that the driving magnet is burst and a method of producing the same. In the motor (1) which is used for a pump device (100), a rotor component (40) comprises the following components: a base (45) for receiving one end face of a cylindrical driving magnet (42); and a magnet mounting part (44) which erects from the base (45) and is wedged with the inner side of the driving magnet (42). The other end face (422) of the driving magnet (42) is provided with a dent part (428) for preventing scattering of magnet at a position which is more next to outside in a radial direction compared with the inner circumferential edge. The dent part (428) for preventing scattering of magnet is wedged with a projection (431) for preventing scattering of magnet, which is held to a scattering prevention component (43) of the rotor component (40).
Description
Technical field
The present invention relates to maintain on a kind of rotor the electronic device and the manufacture method thereof of magnet.
Background technology
In employed electronic device such as the drive source of actuator or the electronic device that uses as pump unit, the electronic device that rotor-side is equiped with cylindric magnet adopts following structure sometimes: on rotor component, form the side end face accept magnet seat portion, reach the magnet installation portion of the tubular that erects from seat portion, and magnet is fixed in magnet installation portion (with reference to patent documentation 1,2).
Patent documentation 1: the Japan Patent spy opens the 2007-97257 communique
Patent documentation 2: the Japan Patent spy opens the 2008-8222 communique
In above-mentioned patent documentation 1,2 electronic devices of being put down in writing, when producing rapid variations in temperature, because the thermal coefficient of expansion of magnet and magnet installation portion is poor, causes acting on the magnet big stress is arranged, magnet may be broken.When producing above-mentioned breaking, have following problem: when rotor rotate, produce owing to centrifugal force, magnet is dispersed, electronic device such critical failure of being failure to actuate.
Summary of the invention
The present invention does in view of the above problems, and is a kind of producing under the situation of breaking on the magnet even if its purpose is to provide, and also can prevent electronic device and manufacture method thereof that magnet is dispersed.
For solving the problems of the technologies described above, among the present invention, electronic device comprises: stator, and this stator has the stator core that is wound with drive coil; And rotor, this rotor has and the magnet of the tubular of said stator relative configuration unshakable in one's determination and the rotor component that keeps this magnet, it is characterized in that above-mentioned rotor component comprises: the seat portion of accepting a side end face of above-mentioned magnet; And from this one erect and with the magnet installation portion of the inboard chimeric tubular of above-mentioned magnet, on an above-mentioned side end face and at least one end face in the opposite side end face of above-mentioned magnet, be formed with magnet than inner peripheral near the position in the radial direction outside and disperse and prevent from use recess, the magnet that remains in above-mentioned rotor component disperses to prevent to disperse with protuberance and above-mentioned magnet and prevents that the usefulness recess is chimeric.
Among the present invention, even if because rapid variations in temperature etc. make stress in magnet, under the situation that magnet is broken, because dispersing to prevent to disperse with protuberance and the magnet that is formed at the end face of magnet, the magnet that remains in rotor component prevents that the usefulness recess is chimeric, therefore magnet also can remain in rotor component, does not disperse.Therefore, even if after magnet is broken, electronic device also can move.
Can make the motor of said structure by the following method.That is, the electronic device of the manufacture method manufacturing of electronic device of the present invention comprises: stator, and this stator has the stator core that is wound with drive coil; And rotor, this rotor has and the magnet of the tubular of said stator relative configuration unshakable in one's determination and the rotor component that maintains this magnet, the feature of the manufacture method of above-mentioned electronic device is, when above-mentioned magnet is remained in above-mentioned rotor component, above-mentioned rotor component is pre-formed the seat portion of a side end face of accepting above-mentioned magnet and the magnet installation portion of the tubular that erects from this one, and on the above-mentioned side end face of above-mentioned magnet and at least one end face in the opposite side end face, be pre-formed magnet and disperse and prevent to use recess, when above-mentioned magnet having been inserted above-mentioned magnet installation portion, the magnet that remains in above-mentioned rotor component disperses and prevents to be in to disperse with above-mentioned magnet with protuberance to prevent with the chimeric state of recess.
Comparatively it is desirable among the present invention: above-mentioned magnet disperses to prevent to disperse with recess and above-mentioned magnet and prevents to be formed at circumferential many places with protuberance.When adopting this structure, even if magnet is broken in any angular orientation, magnet is not dispersed yet.
Comparatively it is desirable among the present invention: in above-mentioned magnet, the position between the cast gate position on circumferentially when forming above-mentioned magnet by die forming is formed with above-mentioned magnet and disperses and prevent to use recess.When forming magnet by die forming, on the axis direction of the position between the cast gate, produce weld mark, magnet is many breaks along weld mark.Therefore, as long as the position on circumferentially between the cast gate position, be that the position at weld mark place is provided with magnet and disperses and prevent to use recess, and magnet dispersed prevent to be located at the weld mark place everywhere with protuberance, even if then magnet along weld mark under the situation of breaking on the axis direction, magnet also can be dispersed by magnet and be prevented to remain in rotor component with protuberance, does not disperse.
Comparatively it is desirable among the present invention: above-mentioned magnet disperses and prevents to be formed at recess the above-mentioned opposite side end face of above-mentioned magnet, and above-mentioned magnet disperses and prevents that the dispersing of the ring-type that leading section kept with protuberance is formed at above-mentioned magnet installation portion from preventing member.When adopting this structure, even if also can prevent dispersing of magnet in a side opposite with seat portion.
At this moment, comparatively it is desirable to: above-mentioned dispersing prevents that member from being tabular, above-mentioned disperse prevent member remain in the above-mentioned opposite side end face of above-mentioned magnet and above-mentioned magnet installation portion leading section, with the form of the above-mentioned opposite side end face that covers above-mentioned magnet and between the part of being out of shape.When adopting this structure,, also can prevent dispersing of magnet in a side opposite with seat portion even if do not make the design alteration of member maximization etc.
Comparatively it is desirable among the present invention: above-mentioned magnet disperses and prevents that the axial cross section with recess from being V word shape, above-mentioned magnet disperses and prevents that the sidewall that is positioned at the radial direction inboard with recess from being the vertical wall with the parallel axes of above-mentioned motor, and above-mentioned magnet disperses and prevents that the sidewall that is positioned at the radial direction outside with recess from being the axis beveled walls that tilt sideling, that link to each other with above-mentioned vertical wall with respect to above-mentioned motor.When adopting this structure, can improve when forming magnet, be used to constitute magnet and disperse and prevent intensity with the mould parts of recess by die forming.
Comparatively it is desirable among the present invention: dispersing to prevent to disperse with the internal diameter of protuberance and above-mentioned magnet at above-mentioned magnet prevents to constitute the gap between the external diameter with the vertical wall of recess.When adopting this structure, can not disperse from magnet prevents with protuberance to the useless power of magnet effect.
Comparatively it is desirable among the present invention: above-mentioned magnet disperses and prevents from upwards to extend as circular-arc groove in week with recess, and is formed at this magnet with above-mentioned magnet and disperses and prevent that inner peripheral and outer peripheral edges with the end face of recess from separating the centre position of distance about equally.When adopting this structure, dispersing from the outer peripheral edges of the end face of magnet to magnet prevents that the thickness with the vertical wall of recess from being certain, and magnet is difficult for breaking.
Comparatively it is desirable among the present invention: dispersing at the above-mentioned magnet of above-mentioned magnet prevents end with the recess side, and above-mentioned dispersing prevents interior all side circumferentias that member covers and prevent to compare, lean on the outer circumferential side circumferentia of outer circumferential side low with recess than being formed to disperse with above-mentioned magnet.When adopting this structure,, can not produce useless step even if make the end face that prevents member and magnet of dispersing overlapping yet.
Comparatively it is desirable among the present invention: the end of the above-mentioned seat portion side of above-mentioned magnet is the stairstepping of the large-diameter portion in the minor diameter part that comprises the radial direction inboard and the radial direction outside, be formed with the cylindrical portion that surrounds around the above-mentioned minor diameter part in above-mentioned seat portion, the outside dimension of above-mentioned cylindrical portion equates with the outside dimension of above-mentioned large-diameter portion.When adopting this structure,, also can magnet be supported on rotor component, can prevent dispersing of magnet by cylindrical portion even if magnet is broken.In addition, because the outside dimension of cylindrical portion equates with the outside dimension of large-diameter portion, therefore, can prevent the root diameter change reliably greatly.
When motor involved in the present invention is constituted pump unit, on above-mentioned rotor component, with respect to above-mentioned seat portion, be formed with impeller erecting the opposite side of side with above-mentioned magnet installation portion, above-mentioned rotor configuration with said stator in partition is divided the pump chamber that forms.
Above-mentioned electronic device (pump unit) is as the pump unit of the pump unit of gases such as force feed air or force feed water etc. and use, and under the latter's the situation, above-mentioned impeller carries out the suction and the discharge of liquid to above-mentioned pump chamber.
Among the present invention, even if because rapid variations in temperature etc. make stress in magnet, under the situation that magnet is broken, because dispersing to prevent to disperse with protuberance and the magnet that is formed at the end face of magnet, the magnet that remains in rotor component prevents that the usefulness recess is chimeric, therefore magnet also can remain in rotor component, does not disperse.Therefore, even if after magnet is broken, electronic device also can move.
Description of drawings
Fig. 1 is the key diagram that the section structure of pump unit of the present invention (electronic device) is used in expression.
Fig. 2 is the exploded view that the section structure of pump unit of the present invention is used in expression.
Fig. 3 is a key diagram of using employed rotor in the pump unit of the present invention.
Fig. 4 is a key diagram of using employed rotor component in the rotor of pump unit of the present invention.
Fig. 5 is a key diagram of using employed magnet in the rotor of pump unit of the present invention.
Fig. 6 uses that employed dispersing prevents the key diagram of member in the rotor of pump unit of the present invention.
Fig. 7 (a) is illustrated in when make using pump unit of the present invention, magnet is inserted the key diagram of magnet installation procedure of form of the magnet installation portion of rotor component; Fig. 7 (b) is when making application pump unit of the present invention, magnet is fixed in the key diagram of the heating and pressurizing operation of rotor component.
(symbol description)
1 motor
3 stators
4 rotors
6 pump chambers
30 stator cores
33 drive coils
35 fixed axis
40 rotor components
41 radial bearings
42 magnet
43 disperse prevents member
44 magnet installation portions
45 portions
100 pump units (electronic device)
One side end face of 421 magnet
The opposite side end face of 422 magnet
The leading section of 440 magnet installation portions
Embodiment
Below, as embodiments of the present invention, the example that electronic device involved in the present invention is constituted pump unit is described.
[overall structure of pump unit]
Fig. 1 and Fig. 2 are respectively key diagram and the exploded views thereof that the section structure of pump unit of the present invention (electronic device) is used in expression.About Fig. 2, omit the diagram of the shape except that otch in a part of cross section.
The pump unit 100 of Figure 1 and Figure 2 is the pump unit that is commonly referred to as the canned pump formula, comprises powering with substrate internally-arranged type brushless motor (to call motor 1 in the following text).The gabarit of the pump unit 100 that present embodiment is related is formed by the housing 53 on the top of the shell 51 of the cup-shaped that covers aftermentioned stator 3 and covering shell 51.Shell 51 is made of resin-case 51a and the molded moulded resin body 51b that is formed at this resin-case 51a.It is porose 511,531 that shell 51 and housing 53 form respectively, utilizes these holes 511,531 fixing shared bolts 15, makes shell 51 and housing 53 form one.
Between shell 51 and housing 53, divide the pump chamber 6 that is formed with fluid flow.That is, in the present embodiment, the wall itself that is used in the resin-case 51a of shell 51 be formed in divide between shell 51 and the housing 53 form pump chamber 6 between wall 52.In shell 51, the central portion of wall 52 is formed with court and the recessed recess 52e of pump chamber 6 opposite sides betwixt, on the upper surface 52g that surrounds recess 52e of shell 51, is formed with slot part 52h with the concentric shape of recess 52e ground.In slot part 52h internal configurations 0 shape ring 12 is arranged, by these 0 shape ring, 12 seal of guaranteeing between housing 53 and the shell 51, i.e. seals of pump chamber 6.
[structure of motor]
The motor 1 of present embodiment comprises stator 3, rotor 4 and power supply substrate 2a, 2b.In this motor 1, the two axial ends of fixed axis 35 is by the first axis hole 52b on the bottom surface 52a of the recess 52e that is formed at shell 51 and be formed on the housing 53 second axis hole 53a supporting with the first axis hole 52b relative position place, fixed axis 35 with import oral area 55 coaxial shape ground and dispose.Rotor 4 described later is supported to and can maintains the thrust bearing 37,38 corresponding to rotor 4 on the fixed axis 35 with respect to fixed axis 35 rotations.
Power supply is formed with a plurality of Wiring patterns and welding disk in addition with the breakthrough part that is formed by hole or slit that is formed with on the substrate 2a for terminal pins 34 perforations.Therefore, in the time will powering with substrate 2a,, thereby terminal pins 34 is connected with welding disk owing to terminal pins 34 perforations are powered and used substrate 2a with bobbin 32 relative configurations.In addition, power supply be formed with on substrate 2a be used to allow the through hole that passes through from the lead 2c of magnetic detecting element 95 extensions, corresponding to welding disk and the Wiring pattern of lead 2c.In addition, on powering, the drive circuit (not shown) of drive controlling stator 3 is installed, and the power connector 72 of acceptance from the electric power of power supply (not shown) is installed with substrate 2a.
On rotor component 40, be formed with blade part 48a in a side opposite with radial bearing 41 and magnet 42 places one side.In the present embodiment, blade part 48a is formed at discoid impeller body 48, link by impeller body 48 and rotor component 40, and in rotor 4, blade part 48a and the rotation of rotor component 40 one.
[being fixed to the fixed structure of the magnet 42 of rotor component 40]
Fig. 3 is a key diagram of using employed rotor 4 in the pump unit 100 of the present invention, and Fig. 3 (a) and (b), (c), (d), (e), (f) unload the amplification view of seat portion periphery of upward view, vertical view, B1-B1 ' cutaway view, B2-B2 ' cutaway view, rotor component of state and the amplification view of magnet installation portion front with impeller body 48 employed rotor 4 from use pump unit 100 of the present invention.
Fig. 4 is a key diagram of using employed rotor component in the rotor 4 of pump unit 100 of the present invention, and Fig. 4 (a) and (b), (c), (d), (e) are respectively the stereograms of using the seat portion peripheral part of upward view, vertical view, A1-A1 ' cutaway view, A2-A2 ' cutaway view and the rotor component of employed rotor component in the rotor 4 of pump unit 100 of the present invention.
Fig. 5 is a key diagram of using employed magnet 42 in the rotor 4 of pump unit 100 of the present invention, and Fig. 5 (a) and (b), (c), (d), (e) use the stereogram of employed magnet 42 rotor 4 of pump unit 100 of the present invention, observe upward view, the C1-C1 ' cutaway view of stereogram, magnet of magnet 42 and the magnet that is formed at the opposite side end face of magnet from oblique upper and disperse and prevent near with the recess cutaway view from oblique beneath.
Fig. 6 uses that employed dispersing prevents the key diagram of member in the rotor 4 of pump unit 100 of the present invention, and Fig. 6 (a) and (b), (c), (d) use the employed stereogram that prevents member of dispersing the rotor 4 of pump unit 100 of the present invention, observe the stereogram of magnet 42, the upward view and the S1-S1 ' cutaway view of magnet from oblique upper from oblique beneath.
Among Fig. 3～Fig. 6, the upper-lower position of each member is opposite with Fig. 1 and Fig. 2.That is, in Fig. 1 and Fig. 2, in " side " expression, under " opposite side " expression, but in Fig. 3～Fig. 6, under " side " expression, in " opposite side " expression.
As shown in Figure 3, use the dispersion that employed rotor 4 employings illustrate by reference Fig. 6 in the pump unit 100 of the present invention and prevent that member 43 is fixed in the structure of the rotor component 40 that illustrates with reference to Fig. 4 with reference to the magnet 42 of Fig. 5 explanation.
(structure of magnet 42)
At first, as shown in Figure 5, magnet 42 is cylindric, and it is that minor diameter part 426a, the radial direction outside are the such ladder-type structure of large-diameter portion 426b that a side end 426 adopts the radial direction inboard.Therefore, be formed with interior all side circumferentia 421a suitable with the end face of minor diameter part 426a and the outer circumferential side circumferentia 421b suitable with the end face of large-diameter portion 426b on a side end face 421 of magnet 42, above-mentioned interior all side circumferentia 421a and outer circumferential side circumferentia 421b are the faces vertical with motor axis L.In a side end face 421 of above-mentioned magnet 42, also be formed with ring-type conical surface 421d near the position of interior all sides than interior all side circumferentia 421a.
On a side end face 421 of magnet 42, be formed with idle running at circumferential equal angles 4 places at interval and prevent to use recess 42a.All side circumferentia 421a and forming in above-mentioned idle running prevents to be cross over from ring-type conical surface 421d with recess 42a.But and since idle running prevent with recess 42a do not arrive magnet 42 a side end face 421 outer circumference end and in Zhou Duan, therefore, no matter in the interior all sides or the circumferential lateral surface of magnet 42, dallying prevents from all not expose with recess 42a.
On the other hand, the 4 circumferential places on the end side 427 (opposite side end face 422) of magnet 42 are formed with magnet and disperse and prevent with recess 428.Above-mentioned magnet disperses and prevents from upwards to extend as circular-arc groove in week with recess 428, and inner peripheral 422a and outer peripheral edges 422b that at least a portion is formed at opposite side end face 422 separate the centre position of distance about equally.
Shown in Fig. 5 (e), magnet disperses and prevents that the cross section with recess 428 from being V word shape, the sidewall that is positioned at the radial direction inboard is the vertical wall 428a parallel with motor axis L, and the sidewall that is positioned at the radial direction outside is the beveled walls 428b that links to each other with vertical wall 428a that tilts sideling with respect to motor axis L.In addition, all side circumferentia 422c were than the low ladder-type structure of outer circumferential side circumferentia 422d in the opposite side end face 422 of magnet 42 adopted, wherein, in all side circumferentia 422c be positioned to disperse and prevent with recess 428 also near the position of all sides than magnet, outer circumferential side circumferentia 422d is positioned to disperse than magnet and prevents with recess 428 also near the position of outer circumferential sides.In addition, vertical wall 428a separates the also close radial direction inboard, centre position of distance about equally than inner peripheral 422a and outer peripheral edges 422b with opposite side end face 422.
In the present embodiment, magnet 42 is that the PPS resin is the ester moulding magnet of matrix, is under the state that cast gate is disposed at the part suitable with the opposite side end face 422 of magnet 42, makes by die forming.Therefore, shown in Fig. 5 (a), the residual vestige 429 that circle is arranged of the part at the cast gate place on the opposite side end face 422 of magnet 42.In the present embodiment, vestige 429 is formed at circumferential 4 places, and 4 places on circumferentially between above-mentioned vestige 429 all are formed with magnet and disperse and prevent with recess 428.In other words, the part of the residual vestige 429 that cast gate arranged is dispersed magnet and is prevented from upwards to cut apart in week with recess 428.Magnet disperses and prevents to prevent to be formed at identical angle position with recess 42a with idle running with recess 428.
(structure of rotor component 40)
As shown in Figures 3 and 4, rotor component 40 integral body are cylindric, and on the one side end, the large diameter impeller linking part 47 that links with the impeller body 48 of Figure 1 and Figure 2 forms discoid.Be formed with the aperture 47b that embeds for the little protuberance (not shown) that is formed at impeller body 48 in the upper surface of impeller linking part 47.In Fig. 3 (b) and Fig. 4 (b), the part at blade part 48a place represents that with chain-dotted line aperture 47b is formed at the position overlapped with blade part 48a.
In the rotor component 40,2 relative places are formed with the hole 46a that exhaust is used on the cylindric body 46 adjacent with opposite side and impeller linking part 47.
In the rotor component 40, be formed with discoid seat portion 45 on opposite side and cylindric body 46 position adjacent, erected magnet installation portion 44 cylindraceous towards opposite side from above-mentioned seat portion 45.In above-mentioned rotor component 40, have in magnet 42 inboard chimeric under the state of magnet installation portion 44, rotor component 40 keeps magnet 42.At this moment, a side end face 421 of magnet 42 is accepted by seat portion 45.
In the seat portion 45, on the bottom surface 450 that is positioned at opposite side, be formed with the cylindrical portion 455 outstanding along its outer peripheral edges towards opposite side.The diameter of the inner peripheral of cylindrical portion 455 (internal diameter size) is more bigger than the outside dimension of the minor diameter part 426a (with reference to Fig. 5) of magnet 42.Therefore, when magnet 42 being loaded into portion 45, the minor diameter part 426a of magnet 42 is embedded in the inboard of inner cylinder portion 455.In addition, the diameter of the outer peripheral edges of inner cylinder portion 455 (outside dimension) and the outside dimension of seat portion 45 and the outside dimension of magnet 42 (outside dimension of the large-diameter portion 426b of magnet 42/with reference to Fig. 5) equate.Therefore, cylindrical portion 455 can not stretched out towards the radial direction outside from the outer peripheral face of magnet 42.
In addition, 2 relative places are formed with the idle running of extending along radial direction and prevent to use protuberance 45a on the bottom surface 450 of present portion 45.Above-mentioned 2 idle running prevent that 4 idle running that embed the magnet 42 that illustrates with reference to Fig. 5 with protuberance 45a from preventing with certain two among the recess 42a, constitute the anti-locking mechanism of idle running that prevents that magnet 42 from dallying around axis on rotor component 40.
At this, idle running prevents from extending to from central side on the radial direction near the cylindrical portion 455 with protuberance 45a, but does not arrive cylindrical portion 455.Therefore, idle running prevents with vacating gap 45b between protuberance 45a and the cylindrical portion 455.In addition, idle running prevents with 450 the height dimension from the bottom surface of protuberance 45a littler than the height dimension of cylindrical portion 455.
In the present embodiment, be embedded at magnet installation portion 44 under the state of the inboard of magnet 42, a side end face 421 that magnet 42 is accepted by seat portion 45, between the end face 455a of the outer circumferential side annulus 421b of portion of magnet 42 and cylindrical portion 455, vacate the gap.In addition, the idle running of seat portion 45 prevents to prevent with the depth dimensions of recess 42a little with the height dimension of protuberance 45a than the idle running of magnet 42.Therefore, a side end face 421 of magnet 42 and bottom surface 450 butts of seat portion 45 are defined in the position of motor axis L direction on the rotor component 40, magnet 42.
In the rotor component 40, be formed with the radial bearing 41 of sleeve-like in the inboard of magnet installation portion 44 cylindraceous.The thickness of the part of the maintenance radial bearing 41 of magnet installation portion 44 is big.In addition, in the rotor component 40, be formed with the teat 448,449 of ring-type in the both end sides of radial bearing 41 towards the radial direction inboard from the inner peripheral surface of magnet installation portion 44, above-mentioned teat 448,449 is in the state that the stage portion 411,412 of the both ends of the surface that are formed on radial bearing 41 covers.Therefore, radial bearing 41 is firmly fixed at rotor component 40.In addition, because the length dimension of magnet installation portion 44 is bigger than the length dimension of radial bearing 41, therefore, there is not radial bearing 41 in the inboard of the end side of magnet installation portion 44.
In the present embodiment, magnet installation portion 44 and magnet 42 have the such space, gap 420 that produces ring-type between the inner peripheral surface of the outer peripheral face of magnet installation portion 44 and magnet 42.Above-mentioned gap 420 is extremely narrow gaps.
In addition, the inside in gap 420 is provided with containment member 49, and above-mentioned containment member 49 is sandwiched between the inner peripheral surface of the outer peripheral face of magnet installation portion 44 and magnet 42.Containment member 49 is that 420 inside solidifications formed in the gap to make it, and have elasticity after the sealing material with mobile silicone resin class etc. was located at gap 420.In addition, containment member 49 also has the effect of the inner peripheral surface of the outer peripheral face of bonded magnet installation portion 44 and magnet 42.At this, also there are the space segment that does not have sealed member 49 landfills in roughly integrally being provided with of containment member 49 coverage gap 420, but the inside in complete filling gap 420 not in the gap 420.Therefore, even if when occurrence temperature rising, magnet installation portion 44 are bigger than magnet 42 expansions, the containment member 49 that is crushed is pressed against space segment, to the big stress of magnet 42 effects.
In rotor component 40, at 2 places respect to one another, exhaust begins to extend at axis direction along the inner peripheral surface of magnet installation portion 44 from the inner peripheral of the leading section 440 of magnet installation portion 44 with groove 44e, and above-mentioned groove 44e is opened on the conical surface 465 places of the internal side diameter formation of present portion 45.
As shown in Figure 4, under the state before magnet 42 is fixed on the rotor component 40, ring-type is formed with the taper part 441 that has a down dip towards outer circumferential side ground court from interior all sides on the leading section 440 of magnet installation portion 44.
Relative therewith, as shown in Figure 3, under the state after magnet 42 is fixed on the rotor component 40, on the leading section 440 of magnet installation portion 44, be formed with in the mode of the opposite side end face 422 that covers magnet 42 and be out of shape and magnet 42 is fixed to holding section 445 on the rotor component 40, on the inner peripheral of the leading section 440 of magnet installation portion 44, taper part 441 is seldom residual.
As described later, when the leading section 440 to magnet installation portion 44 heats and pressurizes, the holding section 445 that is formed at the leading section 440 of magnet installation portion 44 is the parts of being out of shape in the mode of the opposite side end face 422 that covers magnet 42, and magnet 42 is remained between holding section 445 and the seat portion 45.
In the present embodiment, utilization makes leading section 440 distortion of magnet installation portion 44 and during the holding section 445 fixed drive magnets 42 that form, makes with reference to Fig. 6 and prevent that dispersing of following explanation member 43 is sandwiched between the opposite side end face 422 and holding section 445 of magnet 42.
(disperse and prevent the structure of member)
Shown in Figure 6 dispersing prevents that member 43 from being the metal parts of stainless steel etc., comprising: the laminal annulus portion 430 that covers the opposite side end face 422 of magnet 42; And laminal 4 magnets that are converted into the right angle of the side from the outer peripheral edges of annulus portion 430 towards motor axis L disperse and prevent with protuberance 431.The internal diameter size of annulus portion 430 is more bigger than the outside dimension of magnet installation portion 44 (with reference to Fig. 3 and Fig. 4), and the outside dimension of annulus portion 430 and magnet by magnet 42 disperse and prevent with the diameter of a circle of recess 428 (with reference to Fig. 5) about equally.Therefore, annulus portion 430 is positioned at magnet by magnet 42 with outer peripheral edges and disperses and prevent that the opposite side end face 422 with form on the circle of recess 428 and magnet 42 is overlapping.That is, annulus portion 430 is overlapping with interior all side circumferentia 422c of magnet 42.In addition, disperse at the magnet of annulus portion 430 and prevent that the root with protuberance 431 is formed with semicircular breach 433.
At this, magnet disperses and prevents that magnet with protuberance 431 and magnet installation portion 44 from dispersing and prevent to be formed at equally with recess 428 4 places of circumferential first-class angle intervals, and along the external diameter of annulus portion 430 in upwards bending of week.Therefore, when preventing that when dispersing the opposite side end face 422 of member 43 and magnet 42 is overlapping, shown in Fig. 3 (f), the magnet that prevents member 43 of dispersing disperses and prevents that magnet with protuberance 431 and magnet 42 from dispersing and prevent that usefulness recess 428 is chimeric.Consequently, the disperse magnet that prevents member 43 disperses and prevents that being in magnet with magnet 42 with protuberance 431 disperses and prevent the overlapping state of vertical wall 428a with recess 428.Under this state, the magnet that prevents member 43 of dispersing disperses and prevents that magnet with protuberance 431 and magnet 42 from dispersing and prevent to have small gap between the vertical wall 428a with recess 428.Therefore, can not disperse and prevent with the useless stress of protuberance 431 pairs of magnet 42 effects from magnet.
In addition, magnet disperses to prevent to disperse than magnet with the girth of protuberance 431 and prevents all length with recess 428, dispersing at magnet prevents inside with recess 428, and dispersing to prevent to disperse with the circumferential both ends of protuberance 431 and magnet at magnet prevents to have the gap between the inwall with the circumferential both ends of recess 428.Therefore, can not disperse and prevent with the useless stress of protuberance 431 pairs of magnet 42 effects from magnet.
(manufacture method of pump unit)
Illustrate in the manufacture method of pump unit 100 of present embodiment with reference to Fig. 7 (a), Fig. 7 (b), magnet 42 is remained in the operation of rotor component 40, and describe in detail magnet 42 is fixed to fixed structure on the rotor component 40.Fig. 7 (a) is illustrated in when make using pump unit 100 of the present invention, magnet 42 is inserted the key diagram of magnet installation procedure of form of the magnet installation portion 44 of rotor components 40; Fig. 7 (b) is when make using pump unit 100 of the present invention, magnet 42 is fixed in the key diagram of the heating and pressurizing operation of rotor component 40.
When making the pump unit 100 of present embodiment, for magnet 42 is fixed in rotor component 40, at first, as reference Fig. 3 and Fig. 4 explanation, utilize thermoplastic resin to form the rotor component 40 that comprises a portion 45 and magnet installation portion 44, in the magnet installation procedure shown in Fig. 7 (a), at first, the sealing material 49a (mobile containment member 49) of silicone-coating resin etc. around the magnet installation portion 44 of rotor component 40.For example, shown in Fig. 7 (a), the sealing material 49a of silicone-coating resin etc. around the substantial middle part of the axis direction of magnet installation portion 44.In addition, the coating of sealing material 49a can adopt the painting method that applies many on axis direction more longways maybe will seal the method that material 49a applies into point-like.
Then, shown in Fig. 7 (b), make magnet 42 and magnet installation portion 44 chimeric.Consequently, the leading section 440 of magnet installation portion 44 is in from the outstanding slightly state of the opposite side end face 422 of magnet 42.In addition, the minor diameter part 426a of magnet 42 and cylindrical portion 455 is inboard chimeric.Then, make magnet 42 when axis rotates, 2 idle running that are formed at a portion 45 prevent to prevent with certain two among the recess 42a chimeric, as to stipulate magnet 42 circumferential positions with 4 idle running that are formed at a side end face 421 of magnet 42 with protuberance 45a.In addition, magnet installation portion 44 and magnet 42 have the such space, gap 420 that produces ring-type between the inner peripheral surface of the outer peripheral face of magnet installation portion 44 and magnet 42.Therefore, between the inner peripheral surface of the outer peripheral face of magnet installation portion 44 and magnet 42, be formed with gap 420.In addition, with magnet 42 and magnet installation portion 44 chimeric after, make magnet 42 at axis direction and make progress in week when mobile, in the zone of the broad in gap 420, sealing material 49a is in and expands the state of opening.
Then, make the overlapping state of opposite side end face 422 that disperses and prevent leading section 440 that member 43 is in magnet installation portion 44 and magnet 42.Consequently, disperse the magnet that prevents member 43 disperse prevent magnet with protuberance 431 and magnet 42 disperse prevent with recess 428 chimeric.
Then, in the heating and pressurizing operation, the circular-arc thermal weld that to heat by energising is with the 90 magnet installation portions 44 that press on rotor component 40, after leading section 440 heating of magnet installation portion 44, pressurization, from air nozzle (not shown) blow out air, the leading section 440 of cooling magnet installation portion 44.Consequently, as shown in Figure 3, form on the leading section 440 of magnet installation portion 44 with the disperse holding section 445 of form distortion of the annulus portion 430 that prevents member 43 of covering, dispersing prevents that member 43 from remaining between magnet installation portion 44 and the magnet 42.At this, the inner peripheral of the annulus portion 430 that holding section 445 prevents member 43 along dispersing covers the full week of magnet 42, is in the outstanding slightly state of annulus portion 430 that prevents member 43 from dispersing.
Like this, magnet 42 is fixed between holding section 445 and the seat portion 45, and under this state, magnet 42 can not break away from from magnet installation portion 44.In addition, the full week that holding section 445 covers the opposite side end face 422 of magnet 42, and the end face of holding section 445 spreads all over circumferential integral body formation even surface.Therefore, magnet 42 can be fixed on the rotor component 40 with enough intensity, and can good appearance magnet 42 be fixed on the rotor component 40.
Then, sealing material 49a is solidified, form containment member 49.In the present embodiment, because sealing material 49a uses the silicone resin of cured at atmosphere, therefore,, just can form containment member 49 as long as rotor component 42 is directly at room temperature placed.In the gap 420 of above-mentioned containment member 49 between the inner peripheral surface of the outer peripheral face of magnet installation portion 44 and magnet 42, be sandwiched between the inner peripheral surface of the outer peripheral face of magnet installation portion 44 and magnet 42.
(the main effect of present embodiment)
As described above, in the pump unit 100 and manufacture method thereof of present embodiment, owing between the outer peripheral face of the inner peripheral surface of magnet 42 and magnet installation portion 44, gap 420 is set on one's own initiative, therefore, magnet installation portion 44 and magnet 42 when chimeric, are not being acted on big stress on magnet 42.Therefore, can prevent breaking of magnet 42.
In addition, owing between the outer peripheral face of the inner peripheral surface of magnet 42 and magnet installation portion 44, gap 420 is set on one's own initiative, therefore, even if there be the poor of thermal coefficient of expansion in magnet 42 with magnet installation portion 44, the stress from magnet installation portion 44 that causes owing to variations in temperature can not directly act on magnet 42 yet.For example, the thermal coefficient of expansion of magnet 42 than the little situation of the thermal coefficient of expansion of magnet installation portion 44 under, when occurrence temperature rose, magnet installation portion 44 expanded big than magnet 42, even if but under said circumstances, can be from 44 pairs of magnet 42 applied stresses of magnet installation portion yet.Therefore, can prevent breaking of magnet 42.In addition, although between the outer peripheral face of the inner peripheral surface of magnet 42 and magnet installation portion 44, have gap 420, in above-mentioned gap 420, between the outer peripheral face of the inner peripheral surface of magnet 42 and magnet installation portion 44, accompany containment member 49.Therefore, when rotor 4 rotations, magnet 42 is vibrated such problem and has been reduced on rotor component 40.
In addition, containment member 49 is that the sealing material 49a of silicone resin class is solidified to form, and has elasticity.Therefore, even if when occurrence temperature rising, magnet installation portion 44 are bigger than magnet 42 expansions,, therefore magnet 42 is not acted on big stress because containment member 49 is crushed.And because containment member 49 has cementability, therefore, magnet 42 is in the state that is adhered to magnet installation portion 44 by containment member 49.Therefore, even if just in case magnet 42 is broken, containment member 49 also can help to suppress dispersing of magnet 42.
In addition, utilize the idle running of magnet 42 to prevent to prevent from use protuberance 45a with the idle running of recess 42a and seat portion 45, formation prevents that magnet 42 from preventing locking mechanism with respect to the idle running that rotor component 40 dallies between a side end face 421 of magnet 42 and seat portion 45.Therefore, can prevent the idle running of magnet 42 with simple structure.
In addition, in the present embodiment, ratio inner peripheral on the opposite side end face 422 of magnet 42 is formed with magnet near the position in the radial direction outside and disperses and prevent with recess 428, above-mentioned magnet disperse prevent with recess 428 with remain in dispersing of rotor component 40 and prevent that the magnet of member 43 from dispersing and prevent to use protuberance 431 chimeric.Therefore, even if because rapid variations in temperature etc. make stress in magnet 42, when magnet 42 contingency were broken, magnet 42 also can remain in rotor component 40, does not disperse.Therefore, even if after magnet 42 is broken, electronic device also can move.
In addition, prevent to be formed at circumferential many places with protuberance 431 because magnet disperses to prevent to disperse with recess 428 and magnet, therefore, even if magnet 42 is broken in any angular orientation, magnet 42 is not dispersed yet.In addition, on magnet 42, on circumferentially, be arranged in 4 places between the gate location (figure (5) remaining trace 429 places) when forming magnet 42 and all be formed with magnet and disperse and prevent usefulness recess 428 by die forming.When forming magnet 42 by die forming, on the axis direction of the position between the cast gate, produce weld mark, magnet more than 42 is broken along weld mark, but as long as on circumferentially 4 places between the cast gate position, be that the residing magnet that all is provided with everywhere of weld mark disperses and prevents with recess 428, and magnet dispersed to prevent to be located at weld mark with protuberance 431 everywhere residing, even if magnet 42 is broken on axis direction along weld mark, magnet 42 also can be dispersed by magnet and be prevented to remain in rotor component 40 with protuberance 431, does not disperse.
In addition, magnet disperses and prevents to be formed at recess 428 the opposite side end face 422 of magnet 42, and magnet disperses and prevents that being formed at the dispersing of ring-type that is kept on the leading section 440 of magnet installation portion 44 with protuberance 431 prevents member 43.Therefore, even if with seat portion 45 opposite sides, also can keep magnet 42, and can prevent dispersing of magnet 42.That is, present portion 45 sides are located at a side end 426 of magnet 42 with minor diameter part 426a, surround above-mentioned minor diameter part 426a by the cylindrical portion 455 with seat portion 45, and magnet 42 is supported on rotor component 40.Therefore, present portion 45 sides can self prevent dispersing of magnet 42 by seat portion 45, but at the leading section 440 of magnet installation portion 44, because magnet 42 is passed, therefore can not adopt the such structure of a portion 45 sides.Yet, in the present embodiment, because dispersing of ring-type prevented that member 43 from remaining in the leading section 440 of magnet installation portion 44, and above-mentioned disperse to prevent from the member 43 to be provided with to disperse to prevent to disperse with the chimeric magnet of recess 428 with magnet prevent usefulness protuberance 431, therefore, even if with seat portion 45 opposite sides, also can keep magnet 42, and can prevent dispersing of magnet 42.
And, dispersing prevents that member 43 from being tabular, between the part (holding section 445) leading section that prevents opposite side end face 422 that member 43 remains in magnet 42 and magnet installation portion 44 of dispersing, that be out of shape with the form of the opposite side end face 422 of covering magnet 42.Therefore, even if do not make the design alteration of member maximization etc., also can prevent dispersing of magnet 42 with seat portion 45 opposite sides.
In addition, because present portion 45 sides, the outside dimension of cylindrical portion 455 equates with the outside dimension of the large-diameter portion 426b of magnet 42, therefore, can prevent reliably that the diameter of rotor 4 from becoming big.
In addition, because on the opposite side end face 422 of magnet 42, dispersing prevents that the overlapping interior all side circumferentia 422c of member 43 are lower than outer circumferential side circumferentia 422d, therefore, prevent that member 43 is overlapping with the opposite side end face 422 of magnet 42 even if making disperses, also can not produce useless step.
In addition, in the present embodiment, behind the magnet installation portion 44 with magnet 42 insertion rotor components 40, leading section 440 from the outstanding magnet installation portion 44 of the opposite side end face 422 of magnet 42 is heated and pressurizes, the form distortion that the leading section 440 that makes magnet installation portion 44 disperses and prevents member 43 with covering forms magnet 42 is fixed to holding section 445 on the rotor component 40.Therefore, magnet 42 can be fixed on the rotor component 40 reliably.In addition, different with ultrasonic bonding in the present embodiment, because the leading section 440 of magnet installation portion 44 is heated and pressurize, therefore, the level and smooth and good appearance of crushed element in addition, has nothing to do with surface state, and final state is stable.In addition, different with ultrasonic bonding in the present embodiment, because not to magnet 42 effect ultrasonic vibrations, therefore, even if use under the situation of sintered magnet in magnet 42, can be owing to ultrasonic vibration is damaged magnet 42 yet.In addition, in the present embodiment, different with ultrasonic bonding, even if under the situation that leading section 440 softens, fusing is such of having only magnet installation portion 44, the leading section 440 that also can make magnet installation portion 44 prevents that member 43 from engaging securely with dispersing, therefore, be applicable to magnet 42 is fixed on the rotor component 40.
Especially, in the present embodiment, owing on the leading section 440 of magnet installation portion 44, form to cover the holding section 445 of the opposite side end face 422 of magnet 42, therefore, can stop the moving of axis direction of magnet 42 reliably.In addition, because the idle running of seat portion 45 prevents to prevent that with protuberance 45a and the idle running that is formed at a side end face 421 of magnet 42 usefulness recess 42a is chimeric, therefore, can stop magnet 42 to be rotated reliably around axis.Therefore, also adhesive securement magnet installation portion 44 and magnet 42 can be do not used, the restricted such purposes of use of conveying of hot water or beverage etc., bonding agent can be fully be applicable to.
In addition, because the leading section 440 at magnet installation portion 44 is formed with the taper part 441 that has a down dip towards outer circumferential side ground court from interior all sides, therefore, there is following advantage: when carrying out the heating and pressurizing operation, the situation that the leading section 440 that magnet installation portion 44 can not occur is out of shape towards the inboard of magnet installation portion 44 with stretching out.
[other execution mode]
In the above-described embodiment, holding section 445 covers to disperse and prevents the full week of member 43, is upwards covering the roughly full week of removing the part week or is only covering the circumferentially structure of part but also can adopt.
In the above-described embodiment, present portion 45 sides, the minor diameter part 426a that surrounds magnet 42 by the cylindrical portion 455 of being located at a portion 45 self prevents dispersing of magnet 42, but portion's 45 sides of also can being present, ratio inner peripheral on the end face of magnet 42 is provided with magnet near the position in the radial direction outside and disperses and prevent with recess 428, and will disperse to prevent to disperse with the chimeric magnet of recess 428 with above-mentioned magnet and prevent to be formed at a portion 45 with protuberance.
In the above-described embodiment, magnet disperses and prevents that inner peripheral 422a and outer peripheral edges 422b with recess 428 at least a portion are formed at opposite side end face 422 from separating the centre position of distance about equally, is formed at than separating inboard or the outside of the centre position of distance about equally near radial direction with the inner peripheral 422a of opposite side end face 422 and outer peripheral edges 422b but also can adopt.
In the above-described embodiment, as the electronic device illustration pump unit 100, but the present invention is also applicable to as the drive source of actuator and the electronic device that uses.
In the above-described embodiment, because rotor component 40 integral body are made of thermoplastic resin, therefore the magnet installation portion has thermoplasticity, but also can apply the present invention to the situation that the part beyond the magnet installation portion of rotor component is made of the material beyond the thermoplastic resin.
Claims (14)
1. electronic device comprises:
Stator, this stator has the stator core that is wound with drive coil; And
Rotor, this rotor have the magnet of tubular of relative configuration with described stator core and the rotor component that keeps this magnet,
It is characterized in that,
Described rotor component comprises:
Accept the seat portion of a side end face of described magnet; And
From this one erect and with the magnet installation portion of the inboard chimeric tubular of described magnet,
On a described side end face and at least one end face in the opposite side end face of described magnet, than the position of inner peripheral near the radial direction outside, be formed with magnet and disperse and prevent to use recess,
The magnet that remains in described rotor component disperse prevent with protuberance and described magnet disperse prevent with recess chimeric.
2. electronic device as claimed in claim 1 is characterized in that, described magnet disperses to prevent to disperse with recess and described magnet and prevents to be formed at circumferential many places with protuberance.
3. electronic device as claimed in claim 2 is characterized in that, on described magnet, the position between the cast gate position on circumferentially when forming described magnet by die forming is formed with described magnet and disperses and prevent to use recess.
4. electronic device as claimed in claim 3 is characterized in that, described magnet disperses to prevent to disperse with recess and described magnet and prevents to be formed at protuberance the position at weld mark place when forming described magnet by die forming.
5. electronic device as claimed in claim 1, it is characterized in that, described magnet disperses and prevents to be formed at recess the described opposite side end face of described magnet, described magnet disperses and prevents that being formed at dispersing of ring-type with protuberance prevents member, and this disperses and prevents that member from remaining in the front of described magnet installation portion.
6. electronic device as claimed in claim 5, it is characterized in that, described dispersing prevents that member from being tabular, described disperse prevent member remain in the described opposite side end face of described magnet and described magnet installation portion leading section, with the form of the described opposite side end face that covers described magnet and between the part of being out of shape.
7. electronic device as claimed in claim 1, it is characterized in that, described magnet disperses and prevents that the axial cross section with recess from being V word shape, described magnet disperses and prevents that the sidewall that is positioned at the radial direction inboard with recess from being the vertical wall with the parallel axes of described motor, and described magnet disperses and prevents that the sidewall that is positioned at the radial direction outside with recess from being the beveled walls that the axis with respect to described motor tilts sideling and links to each other with described vertical wall.
8. electronic device as claimed in claim 7 is characterized in that, dispersing to prevent to disperse with protuberance and described magnet at described magnet prevents to be formed with the gap between the vertical wall with recess.
9. electronic device as claimed in claim 8, it is characterized in that, described magnet disperses and prevents from upwards to extend as circular-arc groove in week with recess, and a part described magnet that is formed at described magnet disperses and prevents to separate the centre position of distance about equally with inner peripheral and outer peripheral edges at least with the end face of recess side.
10. electronic device as claimed in claim 7, it is characterized in that, dispersing at the described magnet of described magnet prevents end with the recess side, and described dispersing prevents interior all side circumferentias that member covers and prevent that than being formed at described magnet and dispersing the outer circumferential side circumferentia with the recess outer circumferential side is low.
11. electronic device as claimed in claim 1 is characterized in that,
The end of the described seat portion side of described magnet is the stairstepping of the large-diameter portion in the minor diameter part that comprises the radial direction inboard and the radial direction outside,
Be formed with the cylindrical portion that surrounds around the described minor diameter part in described seat portion,
The outside dimension of described cylindrical portion equates with the outside dimension of described large-diameter portion.
12. electronic device as claimed in claim 1 is characterized in that,
On described rotor component, with respect to described seat portion, be formed with impeller erecting the opposite side of side with described magnet installation portion,
Described rotor configuration with described stator in the pump chamber that partition divide to form.
13. electronic device as claimed in claim 12 is characterized in that, described impeller carries out the suction and the discharge of liquid to described pump chamber.
14. the manufacture method of an electronic device, the electronic device of its manufacturing comprises:
Stator, this stator has the stator core that is wound with drive coil; And
Rotor, this rotor have the magnet of tubular of relative configuration with described stator core and the rotor component that maintains this magnet,
It is characterized in that,
When described magnet is remained in described rotor component, described rotor component is pre-formed the seat portion of a side end face of accepting described magnet and the magnet installation portion of the tubular that erects from this one, and on the described side end face of described magnet and at least one end face in the opposite side end face, be pre-formed magnet and disperse and prevent to use recess, when described magnet having been inserted described magnet installation portion, the magnet that remains in described rotor component disperses and prevents to be in to disperse with described magnet with protuberance to prevent with the chimeric state of recess.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-091359 | 2009-04-03 | ||
| JP2009091359A JP5431004B2 (en) | 2009-04-03 | 2009-04-03 | Motor device and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101860102A true CN101860102A (en) | 2010-10-13 |
| CN101860102B CN101860102B (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010159855.0A Active CN101860102B (en) | 2009-04-03 | 2010-04-02 | Motor device and method of producing the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5431004B2 (en) |
| KR (1) | KR101545758B1 (en) |
| CN (1) | CN101860102B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368350A (en) * | 2012-03-30 | 2013-10-23 | 日本电产株式会社 | Brushless motor, disk drive apparatus, and method of manufacturing the brushless motor |
| CN109660053A (en) * | 2014-02-12 | 2019-04-19 | 日本电产高科电机株式会社 | Motor |
| CN110391725A (en) * | 2018-04-16 | 2019-10-29 | 日本电产三协株式会社 | The manufacturing method of actuator |
| CN111720339A (en) * | 2019-03-22 | 2020-09-29 | 株式会社京滨 | Electric water pump |
| CN113682124A (en) * | 2020-05-18 | 2021-11-23 | 现代坦迪斯株式会社 | Hybrid power device for vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101327382B1 (en) * | 2012-12-24 | 2013-11-08 | 주식회사 케이씨텍 | Motor box for particle shatterproof |
| FR3141575A1 (en) * | 2022-11-02 | 2024-05-03 | Moving Magnet Technologies | Simplified magnet-holding rotor |
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| JP2001339888A (en) * | 2000-05-30 | 2001-12-07 | Matsushita Electric Ind Co Ltd | Magnet rotor |
| CN1941569A (en) * | 2005-09-27 | 2007-04-04 | 日本电产三协株式会社 | Sealed electric-motor and sealed pump |
| JP2007100610A (en) * | 2005-10-05 | 2007-04-19 | Nidec Shibaura Corp | Rotor for pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004312876A (en) * | 2003-04-07 | 2004-11-04 | Yaskawa Electric Corp | Rotor of ac motor |
| JP2008008222A (en) * | 2006-06-29 | 2008-01-17 | Nidec Sankyo Corp | Pump device |
| JP2008099445A (en) * | 2006-10-12 | 2008-04-24 | Mitsuba Corp | Inner rotor of rotary electric machine |
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- 2009-04-03 JP JP2009091359A patent/JP5431004B2/en active Active
-
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- 2010-04-02 KR KR1020100030467A patent/KR101545758B1/en not_active IP Right Cessation
- 2010-04-02 CN CN201010159855.0A patent/CN101860102B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001339888A (en) * | 2000-05-30 | 2001-12-07 | Matsushita Electric Ind Co Ltd | Magnet rotor |
| CN1941569A (en) * | 2005-09-27 | 2007-04-04 | 日本电产三协株式会社 | Sealed electric-motor and sealed pump |
| JP2007100610A (en) * | 2005-10-05 | 2007-04-19 | Nidec Shibaura Corp | Rotor for pump |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368350A (en) * | 2012-03-30 | 2013-10-23 | 日本电产株式会社 | Brushless motor, disk drive apparatus, and method of manufacturing the brushless motor |
| CN103368350B (en) * | 2012-03-30 | 2015-09-02 | 日本电产株式会社 | The manufacture method of brushless motor, disk drive device and brushless motor |
| CN109660053A (en) * | 2014-02-12 | 2019-04-19 | 日本电产高科电机株式会社 | Motor |
| CN110022040A (en) * | 2014-02-12 | 2019-07-16 | 日本电产高科电机株式会社 | Motor |
| CN110391725A (en) * | 2018-04-16 | 2019-10-29 | 日本电产三协株式会社 | The manufacturing method of actuator |
| CN111720339A (en) * | 2019-03-22 | 2020-09-29 | 株式会社京滨 | Electric water pump |
| CN111720339B (en) * | 2019-03-22 | 2024-04-16 | 日立安斯泰莫株式会社 | Electric water pump |
| CN113682124A (en) * | 2020-05-18 | 2021-11-23 | 现代坦迪斯株式会社 | Hybrid power device for vehicle |
| CN113682124B (en) * | 2020-05-18 | 2023-11-03 | 现代坦迪斯株式会社 | Hybrid power device for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5431004B2 (en) | 2014-03-05 |
| KR101545758B1 (en) | 2015-08-19 |
| CN101860102B (en) | 2014-04-23 |
| KR20100110750A (en) | 2010-10-13 |
| JP2010246239A (en) | 2010-10-28 |
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