CN103384953B - Magnet retention devitjc - Google Patents

Magnet retention devitjc Download PDF

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Publication number
CN103384953B
CN103384953B CN201180067604.2A CN201180067604A CN103384953B CN 103384953 B CN103384953 B CN 103384953B CN 201180067604 A CN201180067604 A CN 201180067604A CN 103384953 B CN103384953 B CN 103384953B
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CN
China
Prior art keywords
motor
magnet
elasticity
pole pipe
ring
Prior art date
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Expired - Fee Related
Application number
CN201180067604.2A
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Chinese (zh)
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CN103384953A (en
Inventor
M·施塔尔
S·许默
E·舒尔茨
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SEG Automotive Germany GmbH
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Robert Bosch GmbH
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Publication date
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Publication of CN103384953A publication Critical patent/CN103384953A/en
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Expired - Fee Related legal-status Critical Current
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/17Stator cores with permanent magnets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/006Assembling or mounting of starting devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F02N15/023Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/043Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
    • F02N15/046Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer of the planetary type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/067Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

The present invention relates to a kind of motor (10), it has pole pipe (28) of annular, accommodating multiple magnet (212), particularly permanent magnet in described pole pipe (28), described motor (10) has at least one holding means (214) being accommodated in described pole pipe (28).The composite members being made up of magnet (212) and ferromagnetic component (230) is fixed in described pole pipe (28) by the ring-type element (216) of at least one elasticity, and the ring-type element (216) of described elasticity applies load to holding means (214) or the ferromagnetic component (230) of at least one elasticity described.

Description

Magnet retention devitjc
Technical field
The present invention relates to a kind of magnet retention devitjc.
Background technology
Known a kind of direct current generator from document DE 101 48 652 A1.This direct current generator bag Including the pole pipe constructed circlewise, multiple magnets are fixed at this pole pipe.This pole pipe can be fixed on On magnetic holders accommodate and be particularly configured to the magnet of permanent magnet.
Document DE 105 36 422 A1 relates to a kind of electromotor with permanent magnet.This generating Machine includes a cylindrical yoke and multiple permanent magnet, this permanent magnet on the inner peripheral surface of yoke with Uniform angular distribution interval is along yoke circumferentially.Additionally, this electromotor also include one can Rotary motion it is arranged on the rotor in the inner circumferential section of multiple permanent magnet.It is provided with by synthesis tree The elastic locking piece that fat is made is for flexibly engaging with multiple permanent magnets and many for preventing Individual permanent magnet is along the axis direction of motor and circumferential movement.
Document WO 01/56134 A1 also relates to a kind of magnetic holders.This magnetic keeps Device is watched in spray to cast to housing and in circumference and axial direction to be passed through in the circumferential It is fixed on this housing at the receiving position of the element stretched out highlightedly or point-like.
In the current motor manufactured, single magnet or multiple magnet or conducting element by means of Spring or retaining ring is kept to be fixed in the pole pipe of motor.Holding spring except current application Or outside retaining ring, need in the pipe of pole flanging part for fixing or as backstop, such as at literary composition Offer as WO 01/56134 A1 illustrates.
The function keeping spring is to produce archingIn magnet this Realize simply owing to being magnetically attracted to pole Guan Shangke, but in magnet and the group of conducting element Conjunction is difficult to.
It is also important that for keeping the pressing plate of axial restraint at spring or retaining ring to use In the tolerance compensating of magnet, these magnets further contemplate obliquity possible in the pipe of pole. When unfavorable borne forms, this may result in pressing plate and ruptures in advance.Thus, relative to shell Body is watched, and magnet can be drawn by armature and axially move.This causes again armature to lead That draws changes and and then causes the very noisy that should avoid to be formed.
By keeping spring or flanging part, determine what magnet was axially and radially orientated relative to it Position.The result that magnet can cause relative to little movement and the deviation of the position of armature is: The direction of armature traction can be moved owing to being particularly configured to the position of the magnet of permanent magnet and become Change.Magnet position relative to each other determines the intensity in magnetic field and uniformity and and then determines The power of launcher and attainable torque.Magnet is relative to constructing the electricity on brush carrier The position of brush position limits effective brush and reverses.Thus, produce again launcher is idle Speed rotating speed and the decisive influence of peak power.
Summary of the invention
As follows according to the solution that the present invention proposes, for being particularly configured to motor The holding spring that the magnet of permanent magnet is fixed in the pipe of pole supports by means of retaining ring.At motor In the case of vibration or operation, this magnet does not comes off during the service life of motor or moves Dynamic.Obviously better born particularly at magnetic by the composite members keeping spring and retaining ring to form The power of the increase occurred during change.Additionally, this combination available realize at magnet, particularly It is configured to the positional stability in terms of the permanent magnet with conducting element more preferable.Although existing Have in the solution be given so far in technology by the most stably design at magnet (it sets accordingly to keep the little fixation clip on spring to compensate for the axial deviations of magnet It is calculated as robust), can realize in the solution proposed according to the present invention, can be by institute There is the deviation keeping spring-compensating in the axially location of magnet, thus reduce single holding bullet The mechanical load of spring.
Because applying the conducting element in motor due to its non magnetic guarantor not produced in the pipe of pole Holding force, passes through by the arching keeping spring to produce relative to the retentivity of ferromagnetic conducting element Cause.This has again the following result of generation, keeps the material of spring by strong load or non- Often deforming by force, it is less desirable that so loading may be kept the fatigue strength of spring to have by this Impact.Additionally, the holding spring applied up to now is by magnet, exactly by magnet During with assembling in the inside that the composite members of conducting element composition loads pole pipe, it is applied in load. That is, by this holding spring-compressed to less diameter, to realize loading.Loosen at assembly force Or after recalling, the composite members being made up of magnet and conducting element is maintained at pole by arching On the inner side of pipe.During this critical assembling, spring is kept to be likely to by excessively Load, thus the retentivity for composite members seen on the whole closes too small.
When application is used for supporting holding spring according to the retaining ring that the present invention proposes, spring force Constant greatly, but avoid holding spring move inward in the state assembled.Produce real The power of the arching on border is assisted by this retaining ring and improves.That is, proposing according to the present invention Solution in, this arching is the most retained, because this arching is especially for solid The ferromagnetic conducting element being scheduled in the composite members being made up of permanent magnet and conducting element.
By the solution proposed according to the present invention, holding spring is made to be outwardly toward pole pipe Direction, thus assist the arching of appearance further.This retaining ring be used simultaneously as with for The axial restraint portion of the backstop of the magnet on inside the pipe of pole, this magnet particularly structure Cause permanent magnet.The actual clamping force keeping spring to be applied on magnet can be reduced to Big essential value, thus can reach the guarantor of application in the solution proposed according to the present invention Hold the infringement of the fatigue strength of spring.Alternatively, one or two retaining ring can be applied, with Just the uniform load that can realize keeping spring is outwards watched along radial direction.By according to this The solution that invention proposes can substantially simplify assembling.Fringe cost when applying retaining ring It is the least, because this retaining ring is standard component.
Additionally, can be by means of being used for supporting holding by the solution proposed according to the present invention The combination of the retaining ring of spring realizes, thus may be implemented between the position of single magnet simple Tolerance compensating, thus the most for another example above in association with prior art shortcoming describe as occur The unilateral load of little fixation clip.
Accompanying drawing explanation
The present invention is described in detail below according to accompanying drawing.
Wherein:
Fig. 1 shows the longitudinal sectional view of the motor being configured to launcher,
Fig. 2 shows the pole pipe of the motor with the magnet being arranged therein,
Fig. 3 shows the sectional view of the axonometric chart according to Fig. 2,
Fig. 4 shows the possible enforcement keeping spring with retaining ring and fixation clip Mode modification,
Fig. 4 .1 shows the details according to Fig. 4 shown in amplifying,
Fig. 5 shows the diagram of the composite members being made up of conducting element and magnet,
Fig. 6 shows the top view of the composite members the most three-dimensionally illustrated,
Fig. 7 shows the retaining ring being bearing in conducting element, and
Fig. 7 .1 is illustrated the detailed of retaining ring support in conducting element with the ratio amplified View.
Detailed description of the invention
Fig. 1 shows launcher with longitudinal section.
Figure 1 illustrates launcher 10.It is electronic that this launcher 10 such as has starting Machine 13 and joint relay 16.Described starting motor 13 and joint relay 16 are fixed on On one common drive end bearing lid 19.Described starting motor 13 is functionally used for When starter pinion 22 is engaged in the gear ring 25 of internal combustion engine being not shown here, drive Starter pinion 22.
The motor that figure 1 illustrates is the starting motor 13 of electric excitation, and it has as shell The pole pipe 28 of body, the described pole pipe multiple pole shoes 31 of week upper supporting within it, these pole shoes are respectively It is wound around by an Exciting Windings for Transverse Differential Protection 34.Fig. 1 shows the usual of launcher 10 with overall diagram Structure.The motor of the electric excitation illustrated in this place is adjustable into, and replaces figure 1 illustrates Pole shoe 31 and Exciting Windings for Transverse Differential Protection 34 can apply the permanent magnet with conducting element, thus obtain forever The launcher 10 of magnetic pumping.Pole shoe 31 surrounds again armature 37, and this armature has by thin The armature core 43 that sheet 40 is constituted and the armature winding 49 being arranged in multiple groove 48.Armature Unshakable in one's determination 43 are pressed in drive shaft 44.Additionally, in drive shaft 44 away from starter pinion There is also mounted diverter 52 on the end of 22, described diverter 52 is especially by multiple single Diverter thin slice 55 is constituted.Diverter thin slice 55 by known methods with armature winding 49 Electrical connection so that exist producing armature 37 when being energized to diverter thin slice 55 by brush 58 Rotary motion in pole pipe 28.It is arranged on electric driver 16 and starts between motor 13 Current feed 61 be that brush 58 is powered when on-state.Drive shaft 44 is at diverter one Side is supported in sliding bearing 67 by axle journal 64, and this sliding bearing 67 position again is regularly It is maintained in diverter bearing cap 70.Described commutator head 70 is fixed by means of pull bar 73 again In drive end bearing lid 19, described pull bar 73 (e.g., such as two, three or four Bolt) it is distributed on the periphery of pole pipe 28.Here, pole pipe 28 is supported on drive end bearing On lid 19, and diverter bearing cap 70 is supported on pole pipe 28.
Along driving direction, being connected to a sun gear 80 on armature 37, this sun gear is capable A part for star gear drive 83.Sun gear 80 is surrounded by multiple planetary gears 86, It is typically three planetary gears 86 being supported on axle journal 92 by means respectively of rolling bearing 89 Surround.Planetary gear 86 rolls in ring gear 95, described ring gear 95 side bearing outside In pole pipe 28.Towards the direction of outlet side, connect with planetary gear 86 is planet carrier 98, axle journal 92 is contained in described planet carrier.Planet carrier 98 is bearing in again intermediate support body 101 and be arranged in the sliding bearing 104 in this intermediate support body 101.Intermediate support body 101 are designed to basin shape, in order to accommodate planet carrier 98 and planetary gear 86 wherein. Additionally, be also provided with ring gear 95 in the intermediate support body 101 of basin shape, this ring gear is Closed relative to armature 37 by lid 107 afterwards.Intermediate support body 101 is also by its neighboring It is supported on the inner side of pole pipe 28.Armature 37 is at the end away from diverter 52 of drive shaft 44 There is in portion another axle journal 110 being similarly accommodated in sliding bearing 113.Described sliding axle Hold in 113 medium pores being contained in again planet carrier 98.Planet carrier 98 and output shaft 116 1 Body ground connects.This output shaft 116 passes through its end 119 away from intermediate support body 101 Being bearing in another bearing 122, this another bearing is fixed in drive end bearing lid 19. Output shaft 116 is divided into different sections: be connected on the sliding axle being arranged on intermediate support body 101 Hold the section in 104 below be the section with straight-tooth 125 (internal tooth), this straight-tooth is axle A part for-hub attachment structure.This axle-hub attachment structure 128 makes drive in this case Part 131 linear slide vertically is possibly realized.This drivening piece 131 is the prominent of sleeve-shaped Portion, basin shape outer ring 132 integral type of this protuberance and freewheel 137 connects.This Freewheel 137 (orientation brake) additionally includes being arranged radially in outer ring 132 Internal inner ring 140.Clamping body 138 it is provided with between inner ring 140 and outer ring 132.These Clamping body 138 acts on jointly with inner ring 140 and outer ring 132, prevents in outer ring 132 and interior Relatively rotating towards second direction between circle 140.In other words, freewheel 137 Relative motion the most in one direction between inner ring 140 and outer ring 132 can be realized.Real at this Executing in example, described inner ring 140 is implemented as and starter pinion 22 and this starter pinion Helical teeth 143 (outer helical teeth) is one.
For the sake of completeness, engaging mechanism is the most also discussed.Described joint relay 16 Having is the binding post 150 of electrical contact, and the starting that this binding post is connected to be not shown here is dynamo-electric On the positive pole in pond.This binding post 150 is through relay cover 153.Described relay cover 153 Enclosed relay housing 156, this casing of relay by means of multiple retaining element 159 (such as spiral shell Bolt) it is fixed on drive end bearing lid 19.It is also provided with attracting in engaging relay 16 Winding 162 and holding winding 165.Described attraction winding 162 and holding both windings 165 point Producing an electromagnetic field the most in an on state, this electromagnetic field is not only through by electromagnetic conductive The casing of relay 156 that material is made, and through can the armature 168 of linear movement and passing Armature yoke 171.Described armature 168 carries push rod 174, when armature 168 described in linear suction Time, described push rod 174 moves towards switch pin 177 direction.By push rod 174 towards opening Close pin 177 to move, make this switch pin 177 from its resting position to two contact 180 Hes The direction of 181 is moved, thus is arranged on the switch pin 177 end towards contact 180 and 181 On contact bridge 184 make two contacts 180 and 181 be electrically connected to each other.Thus electrical power from Binding post 150 is transferred to current feed 61 thus through contact bridge 184 and binding post 151 It is transferred to brush 58.Described starting motor 13 is thus energized.
Additionally, described joint relay 16 or more specifically armature 168 also have one to appoint Business, i.e. by pulling element 187 to make one to be rotatably arranged in drive end bearing lid 19 On lever motion.It is generally configured to this lever 190 of wishbone lever by two here " pointed tooth " being shown without encases two discs 193 and 194 on their outer circumference, so that being clipped in Band rotating ring 197 between the two disc overcomes the resistance of spring 200 to freewheel 137 Motion, and thus make starter pinion 22 be engaged in gear ring 25.
With axonometric chart, Fig. 2 shows that the pole of the motor with the magnet being arranged therein is managed, this A little magnets are fixed on the inner side of pole pipe by means of holding means.
Especially for launcher 10 motor 10 pole pipe 28 within it 210 include many Individual magnet 212, these magnet 212 permanent magnets in particular.These magnets 212 are by week The holding means 214 being contained on inner side 210 the most evenly distributedly is fixed on the interior of pole pipe Side 210.These holding meanss 214 particularly are become to keep spring by thin sheet material structure.
It is configured to keep the holding means 214 of spring to include bottom 226 respectively, its substantially edge Extend on the axial direction of pole pipe 28.It is configured to keep the holding means 214 of spring to be configured to U configuration 224 and include in the both sides of bottom 226 extend spring arm 228.Additionally, protect The bottom 226 of each held in device 214 terminates in fixation clip 218.This is fixed Pressing plate 218 is preferably configured to the axis of the pole pipe relative to symmetric construction and prolongs radially inward Stretch.As can be the shown of permanent magnet especially as according to the diagram of Fig. 2 obtains The magnet 212 gone out by elastic annular, be advantageously standard component (such as retaining ring) Element 216 fixing on axially and radially direction.The shape of the element 216 of the annular of application Shape draws in particular according to type and the available structure space of load.Such as, this annular Element 216 can be made into round wire or flat wire.
Draw from according to the axonometric chart of Fig. 2, in inner side 210 by means of on pole pipe 28 Latch piece 222 fixes multiple each holding means 214 the most equally spaced from each other. Circumferentially seeing, the multiple magnets 212 especially for permanent magnet pass through to be configured to keep spring The spring arm 228 of holding means 214 open, wherein, magnet 212 with the most not The conducting element 230 illustrated forms composite members together, and it is fixed on pole pipe 28 by arching On inner side 210.Axially see with radial direction, by element elastic, that construct circlewise 216 (applying two elements 216 in enforcement flexible program the most shown in figure 2) are not only By holding means 214 (being designed to keep spring) and magnet 212 is fixed on pole pipe 28 Inside in.Magnet 212 is kept in the axial direction by retaining ring 216 and radial direction Ground is kept by arching.The conducting element (seeing position 230) being inserted into passes through retaining ring 216 at axial direction and are kept in the radial direction.This holding spring 214 is by managing as pole The retaining ring 216 of 28 is compacted and anti-sliding stop.
Drawing from according to the axonometric chart of Fig. 2, the element 216 of elastic annular is introduced into footpath In aduncate holding pressing plate 218.Additionally, axially see, in fig. 2 The element 216 of the elastic annular illustrated is by structure stopping on the inner side 210 of pole pipe 28 Gear 220 is fixed.
The retaining ring 216 existed usually used as standard component by application is used for supporting holding means 214, particularly it is configured to keep the holding means of spring, location can be more precisely carried out, Because facilitating arching described above.Observe on service life, in vibration or in fortune In the case of row, magnet 212 does not comes off.By keeping spring 214 and retaining ring 260 groups The composite members become preferably bears the power increased when magnetization, and allows in addition stably to protect Hold the position of the magnet 212 being configured to permanent magnet.Additionally, by all holding springs 214 Jointly absorb the deviation when magnet 212 axially positions.With the solution party according to prior art Case (is kept at spring at magnet by only one wherein in the case of least suitable Little guiding pressing plate bears whole power) differently, retaining ring can bear the inner side at pole pipe 28 The holding spring 214 of the mechanical load on 210, particularly kayser substantially more uniformly absorbs Mechanical load on inner side 210.
Owing to element 126 this at least one elasticity, annular is accommodated in holding means 214 The fixation clip 218 constructed with bending up in, keep spring 214 by being particularly configured to The element of the elastic annular of retaining ring 216 is radially pressed, thus, assembling by Arching is enhanced during the composite members that magnet 212 and conducting element 230 form.Additionally, especially Be structured to retaining ring, elastic ring-type element 216 be simultaneously used for axial restraint and use Act on the backstop of the magnet 212 being particularly configured to permanent magnet.Treat by holding means 240 Clamping force that apply, that be applied on magnet 212 can be reduced to the value needed for maximum, by There is the less mechanical load of the material for constituting holding means 240 in this.Alternatively, According to whether the uniform pressure keeping spring 214 can the most outwards be produced, can Apply one or two retaining ring 216.By the solution proposed according to the present invention, can be bright Aobvious simplification is assembled.Additionally, can be realized by the solution proposed according to the present invention, reduce Assembly cost, because being configured to Annular Element retaining ring 216, elastic in an advantageous manner Part is standard element or standard component.Also can be realized by the solution proposed according to the present invention Between the position of magnet 212 simple tolerance compensating, no longer exists and constructs relatively smallly Guide the unilateral load of pressing plate.
Fig. 3 shows the embodiment of pole pipe with the motor shown in axonometric chart in fig. 2 Sectional view.
In the embodiment modification according to Fig. 3, the magnet on the inner side 210 of pole pipe 28 212 by two elastic ring-type elements 216 that viewing is spaced apart from each other in the axial direction Fixing, the two element 216 is advantageously configured to retaining ring.Especially for permanent magnet Holding spring 214 is set between magnet 212.This holding spring is joined by lock part 222 shape Close and be fixed on pole pipe 28 with connecting ground and power transmission connection.Retaining ring 216 1 aspect is fixed Pressing plate 218 and another aspect are fixed in the axial direction by backstop 220, this backstop 220 structure Cause the form of the flanging part of inner side 210 at pole pipe 28.The water conservancy diversion being made up of ferromagnetic material Part 230 is integrated into substantially has bottom 226 and two springs stretched with U-shaped 224 In the inside keeping spring 214 of arm 228.It is configured with the guarantor guiding pressing plate 218 thereon Hold spring 214 to be made up of sheet material, i.e. such as by from band-shaped material punching press and in punching press The most and then bending operation is made.
Fig. 4 shows the diagram of the fixed part keeping spring according to diagram in figure 3.
Obtain from Fig. 4, accommodate the holding spring of the conducting element 230 being made up of ferromagnetic material 214 make plate, and it is fixed on the inner side 210 of pole pipe 28 by lock part 220.? In the bottom faces 226 of holding means 214, axially see, be configured with fixation clip 218, Its end (axially after retaining ring 216) is along the most upwards bending. As show according to the diagram of Fig. 4, it is advantageously the elastic ring-type element of retaining ring The 216 holding pressing plates 218 being kept device 214 are fixed.The elastic annular circumferentially constructed Another fixed part of element 216 (being advantageously retaining ring 216) the inner side by pole pipe 228 The backstop 220 of the crimping shape of 210 is formed.
Fig. 4 .1 shows the diagram of the amplification of the support of the flexible member of annular, and this element has It is standard component sharply, the such as retaining ring in the fixation clip keeping spring.
As obtain from Fig. 4 .1, for holding spring 214 is fixed on pole pipe 28 Inner side 210 on lock part 220 be such as configured to punching portion, it is joined to particularly It is configured to keep in the opening in the bottom 226 of the holding means 214 of spring, and will have It is configured to keep the holding means 214 of spring to be fixed on the inner side 210 of pole pipe 28 sharply. Particularly understanding from Fig. 4 .1, fixation clip 218 is with the side inwardly bent up along radial direction Formula constructs in the bottom 226 of holding means 214.The fixation clip 218 bent up holds Receiving resilient ring-type element 216, it is fixed by backstop 220 in addition, this backstop 220 It is preferably configured to the flanging part on the inner side 210 of pole pipe 28.It is being advantageously configured to guarantor Hold and the holding means 214 of spring accommodates the conducting element 230 being made up of ferromagnetic material.
Fig. 5 shows an embodiment modification of the solution proposed according to the present invention, The conducting element 230 being made up of ferromagnetic material wherein has fixed part 232, elastic annular Element 216, the periphery of the element being particularly configured to retaining ring 216 are joined to this fixed part In.And it is joined in the holding means 214 being configured to keep spring.
The embodiment not being configured with conducting element is shown in the diagram according to Fig. 2 to 4, In the diagram according to Fig. 5 and 6, show this conducting element, see position 230.
The solution proposed according to the present invention is shown in the diagram according to Fig. 7 and 7.1 Another embodiment modification.
Fig. 7 illustrates, conducting element 230 has and extends in the axial direction on two ends Axial projection 234.In the embodiment modification according to Fig. 7, this structure is at conducting element Protuberance 234 on two ends of 230 is respectively by an elastic ring-type element 216 It is applied in load.This holding spring 214 produces arching, and wherein, retaining ring 216 assists This arching.This arching between magnet 212 and conducting element 230 by means of keep spring 214 auxiliary.
Shown in the diagram according to Fig. 7, the respective end of conducting element 230 is by with favorably Mode be configured to the elastic ring-type element 216 of retaining ring and come to the inner side 210 of pole pipe 28 On.As before, the element 216 of elastic annular is in the axial direction by with crimping The formal construction in portion backstop 220 on the inner side 210 of pole pipe 28 is fixed in the axial direction.
Logical from the end obtaining conducting element 230 according to the ratio can amplified the diagram of Fig. 7 Cross the fixing of elastic ring-type element 216.The ring-type element 216 of this elasticity particularly constructs Become retaining ring and by structure backstop 220 on the inner side 210 of pole pipe 28 in axially side Upwards fix.As can from according to Fig. 7 .1 with the diagram that exemplifies of ratio amplified obtain that Sample, the protuberance 234 on a side of diversion member 230 is formed with radius 236, This radius 236 is corresponding to the elastic ring-type element 216 being particularly configured to retaining ring Circular.Thus, the ring-type element 216 of this elasticity an end directly to diversion member 230 Apply load, or for application two elastic ring-type elements 216 in the case of, this bullet Property ring-type element 216 on opposite end, directly diversion member 230 is applied load.

Claims (8)

1. a motor (10), its have annular as housing pole manage (28), Accommodating multiple magnet (212) in described pole pipe (28), described motor (10) has appearance It is contained at least one holding means (214) in described pole pipe (28), wherein, by magnet And the composite members that forms of ferromagnetic component (230) ring by least one elasticity (212) Shape element (216) is fixed in described pole pipe (28), the element (216) of the annular of described elasticity Holding means (214) or ferromagnetic component (230) at least one elasticity described apply Load, it is characterised in that described ferromagnetic component (230) is conducting element, described conducting element Having fixed part (232), the periphery of the element (216) of the annular of described elasticity is joined to In described fixed part, or, the holding means (214) of at least one elasticity described is for keeping Spring, described holding spring has at least one fixation clip (218), described fixation clip (218) bend up radially inward and accommodate described elasticity annular element (216).
2. according to the motor described in claim 1, it is characterised in that described magnet (212) It it is permanent magnet.
3. according to the motor (10) according to any one of the claims, it is characterised in that The holding means (214) of at least one elasticity described has bottom (226) and with U-shaped (224) The spring arm (228) holded up.
4. according to the motor (10) described in previous claim, it is characterised in that described extremely A few elastic holding means (214) is at inner side (210) place of described pole pipe (28) Lock part (222) are received.
5. according to the motor (10) described in claim 1, it is characterised in that described at least One elastic ring-type element (216) is supported on the inner side (210) constructed in described pole pipe (28) Backstop (220) place.
6. according to the motor (10) described in claim 1, it is characterised in that described ferromagnetic Component (230) there is axial protuberance (234), described protuberance radially supports The ring-type element (216) of at least one elasticity described.
7. according to the motor (10) described in claim 6, it is characterised in that described axially Protuberance (234) there is the radius (236) of ring-type element (216) for accommodating elasticity.
8. according to the motor (10) described in claim 1, it is characterised in that described at least One elastic ring-type element (216) is retaining ring.
CN201180067604.2A 2010-12-14 2011-11-23 Magnet retention devitjc Expired - Fee Related CN103384953B (en)

Applications Claiming Priority (4)

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DE201010062999 DE102010062999A1 (en) 2010-12-14 2010-12-14 Magnetic holder
PCT/EP2011/070741 WO2012079930A2 (en) 2010-12-14 2011-11-23 Magnet holding device

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Publication number Priority date Publication date Assignee Title
EP2664785B1 (en) * 2012-05-17 2020-04-08 SEG Automotive Germany GmbH Vehicle starter and transmission mechanism for the same
DE102012210778A1 (en) * 2012-06-25 2014-01-02 Robert Bosch Gmbh Electric machine

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US4851727A (en) * 1986-04-09 1989-07-25 Mitsubishi Denki Kabushiki Kaisha Permanent magnet type electric motor
CN1489258A (en) * 2002-07-16 2004-04-14 日本伺服株式会社 Permanent magnetic rotating motor
FR2904488A1 (en) * 2006-07-31 2008-02-01 Valeo Equip Electr Moteur Electric motor for starting heat engine of e.g. motor vehicle, has magnet fixation part, whose length is lower than that of length of magnets, and provided with circular portion from which magnet fixation clip extends along axial direction

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JPH0956091A (en) 1995-08-18 1997-02-25 Mitsubishi Electric Corp Permanent-magnet rotating electric machine
CN1298091C (en) 2000-01-27 2007-01-31 布莱克-德克尔公司 Fixing system for magnet injected and casted on welded ring or electric machine shell
DE10148652A1 (en) 2001-10-02 2003-04-17 Bosch Gmbh Robert DC machine and method for attaching magnets to a pole housing of a DC machine

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FR2059098A5 (en) * 1969-08-22 1971-05-28 Nippon Denso Co
US4851727A (en) * 1986-04-09 1989-07-25 Mitsubishi Denki Kabushiki Kaisha Permanent magnet type electric motor
CN1489258A (en) * 2002-07-16 2004-04-14 日本伺服株式会社 Permanent magnetic rotating motor
FR2904488A1 (en) * 2006-07-31 2008-02-01 Valeo Equip Electr Moteur Electric motor for starting heat engine of e.g. motor vehicle, has magnet fixation part, whose length is lower than that of length of magnets, and provided with circular portion from which magnet fixation clip extends along axial direction

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CN103384953A (en) 2013-11-06
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WO2012079930A2 (en) 2012-06-21
WO2012079930A3 (en) 2012-11-22

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