CN203632430U - Motor and air conditioner - Google Patents

Motor and air conditioner Download PDF

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Publication number
CN203632430U
CN203632430U CN201320787257.7U CN201320787257U CN203632430U CN 203632430 U CN203632430 U CN 203632430U CN 201320787257 U CN201320787257 U CN 201320787257U CN 203632430 U CN203632430 U CN 203632430U
Authority
CN
China
Prior art keywords
protuberance
terminal
motor
clutch shaft
shaft bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320787257.7U
Other languages
Chinese (zh)
Inventor
石川将之
佐藤纯一
宫本将考
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Techno Motor Corp
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Nidec Techno Motor Corp
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Filing date
Publication date
Priority claimed from JP2013211382A external-priority patent/JP6042302B2/en
Application filed by Nidec Techno Motor Corp filed Critical Nidec Techno Motor Corp
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Publication of CN203632430U publication Critical patent/CN203632430U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/0633—Details of the bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/38—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary
    • H02K21/44—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
    • 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
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The utility model relates to a motor and an air conditioner. The motor comprises a shaft, a motor shell, a first bearing, a second bearing, a first bearing carriage, a second bearing carriage, and a lead wire. The motor shell has a projecting part and is made of resin. The first bearing and the second bearing support the shaft in a manner of enabling the shaft to be rotatable. The outer peripheral face and the inner peripheral face of each of the first bearing and the second bearing are conductive therebetween. The first bearing carriage is electrically connected with the first bearing. The second bearing carriage is electrically connected with the second bearing. The first bearing carriage and the second bearing carriage are electrically connected with each other via the lead wire. The lead wire has a first terminal connected with the first bearing carriage. The first terminal is held in a way that at least a part of the first terminal is clamped by the projecting part and the first bearing carriage. Therefore, the fixation of the first terminal and the inhibition of an electric corrosion phenomenon can be realized at the same time without needing complex fixing structures or superfluous parts.

Description

Motor and air conditioner
Technical field
The utility model relates to a kind of motor.
Background technology
In the past, have a kind of moulding motor, the stator of this moulding motor is to carry out the molded and shaped casing that forms by resin, and by bearing at the inner built-in rotor of this casing.In such motor, vibrationproof and the soundproof property excellence of the vibration of the stator when water proofing property of stator and opposing motor drive.
For example in Japanese Publication 2009-112065 communique, record a kind of motor in the past.The motor of Japan Publication 2009-112065 communique have by moulded resin carry out the molded one-body molded motor frame that has a stator, have rotating shaft rotor, be installed on rotating shaft two ends two bearings and keep respectively two brackets (claim 1,0039 section) of bearing.
Utility model content
The molded one-body molded motor frame moulding by resin material that has stator., motor frame has electrostatic capacitance.Therefore, because the driving of motor stores electric charge in motor frame, thereby produce potential difference at two tray chambers.Thus, current flowing between rotating shaft and bearing., produce sometimes the damage of the bearing that is known as galvanic corrosion due to this electric current.There is following motor as the method that solves this galvanic corrosion problem.
The motor of recording in Japan Publication 2010-001947 communique, its inclosure has multiple balls of the deep groove ball bearing of lubricating grease to form (claim 1,0008 section, 0044 section) by pottery., the ball of ball bearing is formed by dielectric pottery.Thus, can be suppressed at bearing current flowing.Therefore, can suppress the galvanic corrosion of bearing.But the ball bearing of pottery system price compared with the ball bearing of common metal system is high.
The motor of recording in Japan Publication 2004-229429 communique is installed the earth connection with screwed earth terminal at the iron core of stator and the bracket of bearing, thus with external short circuit (claim 1,0022-0025 section).Thus, the distribution of electrostatic capacitance composition and the electric current based on change in voltage flow to outside by earth connection, therefore can suppress bearing by galvanic corrosion (0011 section).But, in the structure of Japanese Publication 2004-229429 communique, need screw part.And, also need to screw hole be set at bracket.Therefore, need the operation of the turn of the screw.And loosening for the screw that prevents from causing due to the vibration of motor, needs screw threads for fastening and bonding etc.Therefore,, although material price is not high, components number and process number have increased.
And in the motor of recording at Japanese Publication 2010-158152 communique, two tray chambers are electrically connected by conductive pin.Conductive pin is molded one-body molded together with bracket in two brackets and stator.Conductive pin have for the terminal part of another bracket conducting.Terminal part exposes (0050 section) from integrated moulded resin.Thus, for the terminal part that makes conductive pin exposes from resin, on mould molding, need seal member or connector component.Therefore, components number increases.
As mentioned above, in motor in the past, in order to suppress galvanic corrosion phenomenon, need to increase cost and increase components number and process number.
The purpose of this utility model is to provide a kind of motor that can suppress galvanic corrosion phenomenon and can realize simple assembling and cost cutting.
In the exemplary execution mode of the application, motor has axle, rotor, stator, motor case, clutch shaft bearing, the second bearing, clutch shaft bearing bracket, the second bearing bracket and lead-in wire.Axle configures along central axis on above-below direction.Rotor together rotates with axle around axle.Stator arrangement is at the radial outside of rotor.Motor case is formed from a resin, and holds at least a portion of stator.Clutch shaft bearing is supporting axle for rotating than the top side's of rotor position, and is conductivity between the outer peripheral face of clutch shaft bearing and inner peripheral surface.The second bearing is supporting axle for rotating than rotor position on the lower, and is conductivity between the outer peripheral face of the second bearing and inner peripheral surface.Clutch shaft bearing bracket has conductivity, and is electrically connected with clutch shaft bearing, and directly or by the parts of other conductivity keeps clutch shaft bearing.The second bearing bracket has conductivity, and is electrically connected with the second bearing, and directly or keep the second bearing by the parts of other conductivity.Lead-in wire is electrically connected clutch shaft bearing bracket with the second bearing bracket.Motor case has the protuberance extending vertically upward.Lead-in wire has the first terminal being electrically connected with clutch shaft bearing bracket.The first terminal is kept by making its at least a portion be highlighted the clamping of portion and clutch shaft bearing bracket.
An execution mode exemplary according to the application, protuberance is the tubular extending vertically upward.The first terminal has base end part and bend.Base end part extends upward vertically from the wire portion of lead-in wire.Bend extends to radially inner side from the upper end of base end part.Base end part is configured in the outer peripheral face of protuberance.Bend is configured in the upper surface of protuberance.
According to the application's an exemplary execution mode, the first terminal has extension setting unit.Extending setting unit extends downwards from the end of the radially inner side of bend.Extend the inner peripheral surface that setting unit is configured in protuberance.
According to the application's an exemplary execution mode, clutch shaft bearing bracket has annulus and fixed part.Annulus is along the upper surface expansion of protuberance.Fixed part from the end of the radial outside of annulus or the end of radially inner side extend downwards.At least a portion of base end part or extension setting unit is configured between protuberance and fixed part.Bend is configured between the upper surface and annulus of protuberance.
According to the application's an exemplary execution mode, protuberance has slot part.At least a portion of the first terminal is configured in slot part.
According to the application's an exemplary execution mode, the depth dimensions of slot part is less than the gauge at the position contacting with clutch shaft bearing bracket that is configured in the first terminal in slot part.
According to the application's an exemplary execution mode, the depth dimensions of slot part is larger than the gauge that is configured in the first terminal in slot part, and the first terminal is configured between clutch shaft bearing bracket and protuberance.
According to the application's an exemplary execution mode, slot part has upper surface groove in the upper surface of protuberance.Bend is configured in upper surface groove.
According to the application's an exemplary execution mode, slot part has from the upper surface of protuberance to the outer surface groove extending below axially at the mask of the radial outside of protuberance.Base end part is configured in outer surface groove.
According to the application's an exemplary execution mode, slot part has from the upper surface of protuberance to the inner surface groove extending below axially at the mask of the radially inner side of described protuberance.Extending setting unit is configured in inner surface groove.
According to the application's an exemplary execution mode, the first terminal also has spring portion that can strain.Spring portion contacts with clutch shaft bearing bracket.
According to the application's an exemplary execution mode, the first terminal also has spring portion that can strain.Spring portion is outstanding upward from bend, and contacts with the lower surface of annulus.
According to the application's an exemplary execution mode, motor case has the hole of caving in to downside from the upper surface of protuberance.Extending setting unit is configured in hole.
According to the application's an exemplary execution mode, the spaced radial between base end part and extension setting unit is along with expanding downward.The end of the radially inner side of the end of the radial outside of base end part or extension setting unit contacts with clutch shaft bearing bracket.
According to the application's an exemplary execution mode, clutch shaft bearing bracket has outside fixed part and inner side fixed part.Outside fixed part extends downwards from the end of the radial outside of annulus.Inner side fixed part extends downwards from the end of the radially inner side of annulus.At least a portion of base end part is configured between the outer peripheral face and outside fixed part of protuberance.At least a portion of extending setting unit is configured between the inner peripheral surface and inner side fixed part of protuberance.
According to the application's an exemplary execution mode, lead-in wire configures vertically along the outer peripheral face of motor case.Motor case has the fulcrum that wire is applied to tension force at outer peripheral face.The circumferential center configuration of the first terminal is in the position by a circumferential side than fulcrum.
According to the application's an exemplary execution mode, protuberance has slot part.In slot part, configure at least a portion of the first terminal.Slot part is at least configured in the top of fulcrum.Circumferential distance between end and the fulcrum of a circumferential side of slot part is longer than the circumferential distance between the end of the circumferential opposite side of slot part and fulcrum.
According to the application's an exemplary execution mode, protuberance has protuberance.Protuberance is outstanding from configuration plane.In configuration plane, configure at least a portion of the first terminal.The first opposed faces and the second opposed faces are opposed.The first opposed faces is towards a circumferential side of protuberance.The second opposed faces is towards the circumferential opposite side of the first terminal.
According to the application's an exemplary execution mode, at least one of protuberance, the first opposed faces is configured in the position by a circumferential described side than fulcrum.
According to the application's an exemplary execution mode, protuberance has multiple protuberances.
According to the application's an exemplary execution mode, larger than the circumferential width of the first terminal along the distance of two circumferentially adjacent protuberances.
According to the application's an exemplary execution mode, motor case has upper surface portion.Upper surface portion is radially expansion around protuberance or protuberance.
The bottom of protuberance is connected with upper surface portion.
According to the application's an exemplary execution mode, the first opposed faces of protuberance is with respect to circumferentially vertical.
According to the application's an exemplary execution mode, the first opposed faces of protuberance contacts with the second opposed faces of the first terminal.
According to the application's an exemplary execution mode, the end face of the circumferential opposite side of protuberance be along with from opposite side towards a side and away from the slope shape of configuration plane.
According to the application's an exemplary execution mode, protuberance has protuberance.Protuberance is outstanding from configuration plane.In configuration plane, configure at least a portion of the first terminal.The end face of a circumferential side of protuberance is along with from a circumferential side towards opposite side and away from the slope shape of configuration plane.
According to the application's an exemplary execution mode, protuberance is configured in the upper surface of protuberance.
According to the application's an exemplary execution mode, a part for the first terminal is configured between configuration plane and clutch shaft bearing bracket.Between the terminal part of protuberance and clutch shaft bearing bracket, there is gap.
According to the application's an exemplary execution mode, the distance between the terminal part of protuberance and clutch shaft bearing bracket is less than the gauge of a part for the first terminal.
According to the application's an exemplary execution mode, protuberance has from the recess of the configuration plane depression of at least a portion configuration for the first terminal.
A described part for described the first terminal has the projection outstanding towards described configuration plane, and described projection is configured in the inside of described recess.
According to the application's an exemplary execution mode, protuberance has multiple recesses.
According to the application's an exemplary execution mode, protuberance has projection.Projection is outstanding from configuration plane.In configuration plane, configure at least a portion of the first terminal.A part for the first terminal has recess.Recess from opposed depression of configuration plane.Projection is configured in the inside of recess.
According to the application's an exemplary execution mode, protuberance has multiple projections.
According to the application's an exemplary execution mode, motor case has at least two wall portions of extending vertically at its outer peripheral face.Lead-line configuration is between two wall portions.
According to the application's an exemplary execution mode, motor also has the circuit board that stator is provided to drive current, is equipped with the electronic circuit that carries out pulse width modulation mode control at described circuit board.
According to another exemplary execution mode of the application, a kind of air conditioner is provided, it has said motor.
According to the application's an exemplary execution mode, the first terminal is highlighted portion and the clamping of clutch shaft bearing bracket.Thus, can realize the conducting between fixing and clutch shaft bearing bracket and the first terminal of the first terminal simultaneously., without complicated fixed structure and unnecessary parts.Therefore, galvanic corrosion phenomenon can be suppressed and simple assembling and cost cutting can be realized.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the related motor of the first execution mode.
Fig. 2 is the longitudinal section of the related motor of the second execution mode.
Fig. 3 is the outside drawing of the related motor of the second execution mode.
Fig. 4 is the partial sectional view of the related motor of the second execution mode.
Fig. 5 is the partial enlarged drawing of the related motor case of the second execution mode and lead-in wire.
Fig. 6 is the partial perspective view of the related motor case of the second execution mode and lead-in wire.
Fig. 7 is the partial bottom view of the related motor of the second execution mode.
Fig. 8 is the partial, longitudinal cross-sectional of the related motor of variation.
Fig. 9 is the partial, longitudinal cross-sectional of the related motor of variation.
Figure 10 is the exploded longitudinal section of the related motor of variation.
Figure 11 is the partial perspective view of the related motor case of variation and lead-in wire.
Figure 12 is the partial enlarged drawing of the related motor case of variation and lead-in wire.
Figure 13 is the partial perspective view of the related motor case of variation and lead-in wire.
Figure 14 is the partial, longitudinal cross-sectional of the related motor of variation.
Figure 15 is the partial perspective view of the related motor case of variation and lead-in wire.
Figure 16 is the partial perspective view of the related motor case of variation and lead-in wire.
Figure 17 is the partial, longitudinal cross-sectional of the related motor of variation.
Figure 18 is the partial sectional view of the related motor of variation.
Figure 19 is the partial, longitudinal cross-sectional of the related motor of variation.
Figure 20 is the partial perspective view of the related motor case of variation and lead-in wire.
Figure 21 is the partial perspective view of the related motor case of variation and lead-in wire.
Figure 22 is the partial perspective view of the related motor case of variation and lead-in wire.
Figure 23 is the partial sectional view of the related motor of variation.
Embodiment
Below, with reference to accompanying drawing, exemplary execution mode of the present utility model is described.In addition, in this application, respectively the direction parallel with the central axis of motor is called to " axially ", by being called " radially " with the orthogonal direction of the central axis of motor, the direction of the circular arc along centered by the central axis of motor is called to " circumferentially ".
And, in this application, take axially as above-below direction, take clutch shaft bearing side as upper, shape and the position relationship of each several part is described as getting off take the second bearing side with respect to rotor.But the definition of this above-below direction does not limit the related motor of the utility model direction in use.
And " parallel direction " in this application also comprises the direction of almost parallel.And " orthogonal direction " in this application also comprises roughly orthogonal direction.
1. the first execution mode
Fig. 1 is the longitudinal section of the related motor 1A of the first execution mode.As shown in Figure 1, motor 1A comprises axle 10A, rotor 2A, stator 3A, motor case 4A, clutch shaft bearing 51A, the second bearing 52A, clutch shaft bearing bracket 61A, the second bearing bracket 62A and lead-in wire 7A.
Axle 10A configures along central axis 9A on above-below direction.Rotor 2A together rotates with axle 10A around axle 10A.Stator 3A is configured in the radial outside of rotor 2A.Motor case 4A is formed from a resin, and holds stator 3A.In the present embodiment, motor case 4A holds stator 3A entirety, but motor case 4A holds at least a portion of stator 3A.And motor case 4A has the protuberance 42A extending vertically upward.
Clutch shaft bearing 51A is supporting axle 10A for rotating than the top side's of rotor 2A position.Between the outer peripheral face of clutch shaft bearing 51A and inner peripheral surface, be conductivity.The second bearing 52A is supporting axle 10A for rotating than rotor 2A position on the lower.Between the outer peripheral face of the second bearing 52A and inner peripheral surface, be conductivity.
Clutch shaft bearing bracket 61A keeps clutch shaft bearing 51A.And clutch shaft bearing bracket 61A is conductivity, and be electrically connected with clutch shaft bearing 51A.The second bearing bracket 62A keeps the second bearing 52A.And the second bearing bracket 62A is conductivity, and be electrically connected with the second bearing 52A.In addition, in the present embodiment, clutch shaft bearing bracket 61A and the second bearing bracket 62A directly keep respectively clutch shaft bearing 51A and the second bearing 52A.But clutch shaft bearing bracket 61A and the second bearing bracket 62A also can keep clutch shaft bearing 51A and the second bearing 52A by the parts of other conductivity respectively.
Lead-in wire 7A has the first terminal 71A being electrically connected with clutch shaft bearing bracket 61A.The first terminal 71A is kept by making its part be highlighted the 42A of portion and clutch shaft bearing bracket 61A clamping.In addition, in the present embodiment, a part of the first terminal 71A is highlighted the 42A of portion and clutch shaft bearing bracket 61A clamping, but also can make the first terminal 71A entirety be highlighted the 42A of portion and clutch shaft bearing bracket 61A clamping.And lead-in wire 7A is by clutch shaft bearing bracket 61A and the second bearing bracket 62A electrical connection.
As mentioned above, in this motor 1A, the first terminal 71A is clamped by the protuberance 42A of motor case 4A and clutch shaft bearing bracket 61A.Thus, can realize the conducting between fixing and clutch shaft bearing bracket 61A and the first terminal 71A of the first terminal 71A simultaneously., without complicated fixed structure and unnecessary parts.Therefore, galvanic corrosion phenomenon can be suppressed, and simple assembling and cost cutting can be realized.
2. the second execution mode
The overall structure of 2-1. motor
Next, the second execution mode of the present utility model is described.Fig. 2 is the longitudinal section of the related motor of present embodiment 1.Fig. 3 is the outside drawing of motor 1.The motor 1 of present embodiment is for example for household appliances such as air-conditionings.But motor of the present utility model also can be for beyond household appliances.For example, motor of the present utility model also can be equipped on the transporting equipment such as automobile and railway, office equipment, Medical Devices, instrument, industrial main equipment etc., produces various actuating forces.
And the related motor 1 of present embodiment drives the switch element of inverter by high-frequency pulse width modulation mode control.In the motor that carries out pulse width modulation mode control, easily produce galvanic corrosion phenomenon.Therefore, carrying out in the motor of pulse width modulation mode control, technology of the present utility model is particularly useful.In addition, the motor 1 of present embodiment is the motor that carries out pulse width modulation mode control, but the utility model is not limited to this.As long as producing the motor of galvanic corrosion phenomenon, it can be also the motor driving by other control modes.
As shown in Figure 2, motor 1 has axle 10, rotor 2, stator 3, circuit board 30, motor case 4, clutch shaft bearing 51, the second bearing 52, clutch shaft bearing bracket 61, the second bearing bracket 62 and lead-in wire 7.Stator 3, circuit board 30, motor case 4, clutch shaft bearing bracket 61, the second bearing bracket 62 and lead-in wire 7 belong to the stationary part of motor 1.Axle 10 and rotor 2 belong to the rotating part of motor 1.Stationary part and rotating part are by clutch shaft bearing 51 and the second bearing 52 and relative rotation.
Axle 10 is the parts in the upwardly extending column of upper and lower along central axis 9.Axle 10 is by clutch shaft bearing 51 and the second bearing 52 supports and rotation centered by central axis 9.The bottom of axle 10 is outstanding downwards from the bottom of motor case 4.The fan of the use that for example installs an air-conditioner in the bottom of axle 10.And the bottom of axle 10 also can be connected with the drive division beyond fan by Poewr transmission mechanisms such as gears.
In addition, in the present embodiment, axle 10 is outstanding downwards, but the utility model is not limited to this.Axle 10 also can be outstanding upward from clutch shaft bearing bracket 61, and the upper end of axle 10 is connected with drive division.And, axle 10 also can be to the below of motor case 4 and the top both direction of clutch shaft bearing bracket 61 outstanding, and the bottom of axle 10 and upper end both be connected with drive division respectively.
Rotor 2 is configured in the radially inner side of stator 3 and around axle 10, and together rotates with axle 10.Rotor 2 has rotor core 21 and multiple magnet 22.Rotor core 21 is by consisting of the stacked steel plate forming at axial stacked electromagnetic steel plate.Multiple magnet 22 is configured in rotor core 21 around.The face of the radial outside of each magnet 22 becomes the opposed magnetic pole strength of end face with the radially inner side of tooth 311 described later.Multiple magnet 22 is circumferentially uniformly-spaced arranged with the mode edge of the magnetic pole strength of the N utmost point and the magnetic pole strength alternative arrangement of the S utmost point.
In addition, also can replace multiple magnet 22 with circular magnet.While using circular magnet, as long as go out the N utmost point and the S utmost point at the outer peripheral face of magnet along circumferential alternating magnetization.And magnet 22 both can be configured in rotor core 21 around as present embodiment, or also can under the state in the inside that is embedded in rotor core 21, be configured.
Stator 3 is the armature that is configured in the radial outside of rotor 2.Stator 3 has stator core 31, insulating part 32 and multiple coil 33.Stator core 31 is by consisting of the stacked steel plate forming at axial stacked electromagnetic steel plate.Stator core 31 is fixed on motor case 4.And stator core 31 has the multiple teeth 311 outstanding to radially inner side.Multiple teeth 311 are along circumferentially roughly uniformly-spaced arranging.
Insulating part 32 is formed by the resin for insulator.Upper surface, lower surface and the circumferential two sides of each tooth 311 are insulated part 32 and cover.Coil 33 is made up of the wire of the surrounding that is wound on insulating part 32.
Circuit board 30 is in the upside of rotor 2 and stator 3 and the configuration of the downside approximate horizontal of clutch shaft bearing bracket 61.Electronic circuit for coil 33 being provided to drive current is installed on the surface of circuit board 30.The end that forms the wire of coil 33 is electrically connected with the electronic circuit on circuit board 30.The electric current providing from external power source flows to coil 33 via circuit board 30.In the present embodiment, be equipped with at circuit board 30 electronic circuit that carries out pulse width modulation mode control.
Motor case 4 is for keeping the parts that are formed from a resin of stator 3.The motor case 4 of present embodiment is for by the insert-molded article obtaining to the inside resin by injection of mould that is inserted with stator 3 and the second bearing bracket 62.
Motor case 4 has stator maintaining part 41, protuberance 42 and the second bearing bracket maintaining part 43.A part for stator maintaining part 41 covering stators 3 and maintenance stator 3.In the present embodiment, the face the end face of the radially inner side except tooth 311 in the surface of stator 3 is covered by stator maintaining part 41.Radially inner side at stator maintaining part 41 and stator 3 holds rotor 2.Protuberance 42 is position cylindraceous roughly, and extends vertically upward from the upper end of stator maintaining part 41.Detail shape about protuberance 42 is narrated afterwards.The second bearing bracket maintaining part 43 is positioned at the below of stator maintaining part 41 and is connected with the radially inner side end of the lower surface of stator maintaining part 41.The second bearing bracket maintaining part 43 covers a part and the outer peripheral face of the lower surface of the second bearing bracket 62, and keeps the second bearing bracket 62.
Clutch shaft bearing 51 is supporting axle 10 for rotating than rotor 2 top sides' position.The second bearing 52 is supporting axle 10 for rotating than rotor 2 position on the lower.The clutch shaft bearing 51 of present embodiment and the second bearing 52 be there is spheroid 501, the ball bearing of outer ring 502 and inner ring 503.In ball bearing, outer ring 502 with inner ring 503 across spheroid 501 and relative rotation.The metal of the conductivity such as materials'use iron and aluminium of spheroid 501, outer ring 502 and inner ring 503.,, about clutch shaft bearing 51 and the second bearing 52, between their outer peripheral faces separately and inner peripheral surface, be all connected by the parts of conductivity.
In addition, in the present embodiment, spheroid 501, outer ring 502 and inner ring 503 entirety are formed by conductive material, but the utility model is not limited to this.For example, even if a part for clutch shaft bearing 51 and the second bearing 52 is used insulating material, and as long as be connected by the parts of conductivity between outer peripheral face separately of clutch shaft bearing 51 and the second bearing 52 and inner peripheral surface.And, in the present embodiment, use ball bearing as bearing, but as long as being conductivity between the outer peripheral face of bearing and inner peripheral surface, also can use the bearing of other modes such as sleeve bearing.
Clutch shaft bearing bracket 61 is configured in the top of motor case 4, and is the roughly tabular parts of radially expansion.Clutch shaft bearing bracket 61 interfixes by being pressed into motor case 4.
Clutch shaft bearing bracket 61 has the portion that is pressed into 612 that keeps the clutch shaft bearing maintaining part 611 of clutch shaft bearing 51 and fix with motor case 4 by being pressed into.Clutch shaft bearing maintaining part 611 is the roughly position cylindraceous of upside sealing.The upper end of clutch shaft bearing 51 and axle 10 is contained in the radially inner side of clutch shaft bearing maintaining part 611.Narrate afterwards about the detail shape that is pressed into portion 612.
Clutch shaft bearing bracket 61 is made up of the conductive metal such as iron and aluminium, and described clutch shaft bearing bracket 61 is electrically connected with the outer peripheral face of clutch shaft bearing 51.
The second bearing bracket 62 is the parts in the form of a ring that are configured in the radial outside of the second bearing 52.The second bearing 52 is kept by the second bearing bracket 62.And the second bearing bracket 62 is made up of the metal of the conductivity such as iron and aluminium, and the second bearing bracket 62 is electrically connected with the outer peripheral face of the second bearing 52.
As previously mentioned, motor case 4 is for by the insert-molded article obtaining to the inside resin by injection of mould that is inserted with stator 3 and the second bearing bracket 62., the second bearing bracket 62 is fixed on motor case 4 by the moulding of moulded resin.
As shown in FIG. 2 and 3, lead-in wire 7 roughly axial arrangement of the edge of the outer peripheral faces along motor case 4.Lead-in wire 7 has the first terminal 71, the second terminal 72 and wire portion 73.The upper end of wire portion 73 is connected with the first terminal 71 that is electrically connected on clutch shaft bearing bracket 61.The lower end of wire portion 73 is connected with the second terminal 72 that is electrically connected on the second bearing bracket 62.Therefore, clutch shaft bearing bracket 61 and the second bearing bracket 62 7 are electrically connected by going between.
The first terminal 71 clamps and is kept by making its part be highlighted portion 42 and clutch shaft bearing bracket 61.Thus, can realize simultaneously and the first terminal 71 is fixed to protuberance 42 and by conducting between clutch shaft bearing bracket 61 and the first terminal 71., do not need complicated fixed structure and unnecessary parts.Therefore, galvanic corrosion phenomenon can be suppressed and simple assembling and cost cutting can be realized.Detail shape about the first terminal is narrated afterwards.
The structure of the coupling part of 2-2. lead-in wire and each bearing bracket
Next,, about the coupling part between lead-in wire 7 and clutch shaft bearing bracket 61, its more detailed structure is described.Fig. 4 is that longitudinal section is amplified in the part of motor 1.Fig. 5 is the partial enlarged drawing of observing from the radial outside of motor case 4 and lead-in wire 7.Fig. 6 is the partial perspective view of motor case 4 and lead-in wire 7.Fig. 7 is the partial bottom view of motor 1.
As shown in Figure 4, the first terminal 71 has base end part 711, bend 712 and extends setting unit 713.Base end part 711 roughly extends axially on edge upward from the upper end of wire portion 73.Bend 712 extends to radially inner side from the upper end of base end part 711.And, extend setting unit 713 and be positioned at the end of the first terminal 71, and from the end of the radially inner side of bend 712 downward along roughly extending axially.Base end part 711 is configured in the outer peripheral face of protuberance 42.Bend 712 is configured in the upper surface of protuberance 42.And extension setting unit 713 is configured in the inner peripheral surface of protuberance 42.
As shown in Figures 4 to 6, be provided with than the slot part of peripheral recesses 421 on the surface of the protuberance 42 of motor case 4.Slot part 421 has outer surface groove 81, upper surface groove 82 and inner surface groove 83.Outer surface groove 81 is configured in the face of the radial outside of protuberance 42, and extends to axial below from the upper surface of protuberance 42.Upper surface groove 82 is configured in the upper surface of protuberance 42.And inner surface groove 83 is configured in the face of the radially inner side of protuberance 42, and extend to axial below from the upper surface of protuberance 42.Surface groove 81, upper surface groove 82 and inner surface groove 83 dispose respectively base end part 711, the bend 712 of the first terminal 71 and extend setting unit 713 outside., in the continuous slot part 421 that comprises outer surface groove 81, upper surface groove 82 and inner surface groove 83, configure the first terminal 71.Thus, can suppress bad and axle clutch shaft bearing bracket 61 of being pressed into of the clutch shaft bearing bracket 61 that causes due to the thickness of the first terminal 71 departs from.
In addition, in the present embodiment, the base end part 711 of the first terminal 71, bend 712 and extension setting unit 713 are distinguished configured in one piece in slot part 421, but as long as at least a portion of the first terminal 71 is disposed in slot part 421.And protuberance 42 also can need not to be outer surface groove 81, upper surface groove 82 and inner surface groove 83 all to be had.For example, also can omit part or all of outer surface groove 81, upper surface groove 82 and inner surface groove 83.No matter whenever, as long as the first terminal 71 electrically contacts with the portion 612 that is pressed into described later.
And as shown in Fig. 4 and Fig. 6, in the present embodiment, the radial depth size of outer surface groove 81 is larger than the radial thickness size of base end part 711.Thus, can suppress base end part 711 gives prominence to from the outer peripheral face of protuberance 42.And the radial depth size of inner surface groove 83 is larger than the radial thickness size of extending setting unit 713.Thus, can suppress to extend setting unit 713 gives prominence to from the inner peripheral surface of protuberance 42.The axle that consequently, can further suppress the clutch shaft bearing bracket 61 of following the fixing generation between clutch shaft bearing bracket 61 and protuberance 42 departs from.
Thus, in the present embodiment, the depth dimensions of slot part 421 is larger than the gauge that is configured in the first terminal 71 in slot part 421.But the depth dimensions of the slot part 421 also gauge of comparable the first terminal 71 is little.If make the depth dimensions of slot part 421 be less than the gauge of the first terminal 71, can make clutch shaft bearing bracket 61 contact more reliably with the first terminal 71.
As shown in Figure 4, the portion that is pressed into 612 of clutch shaft bearing bracket 61 has annulus 601, outside fixed part 602 and inner side fixed part 603.Annulus 601 is positioned at the top of protuberance 42, and is roughly circular expansion along the upper surface of protuberance 42.Outside fixed part 602 is downward roughly cylindric extension from the end of the radial outside of annulus 601.And inner side fixed part 603 is downward roughly cylindric extension from the end of the radially inner side of annulus 601.A part for the base end part 711 of the first terminal 71 is configured between the outer peripheral face and outside fixed part 602 of protuberance 42.Bend 712 is configured between the upper surface and annulus 601 of protuberance 42.And, extend setting unit 713 and be configured between the inner peripheral surface and inner side fixed part 603 of protuberance 42.
, in the present embodiment, hook-shaped the first terminal 71 is affiliated to the upper end at protuberance 42.And, keep this first terminal 71 by covering this first terminal 71 by the portion that is pressed into 612 of clutch shaft bearing bracket 61.Thus, the first terminal 71 is fixed reliably by clutch shaft bearing bracket 61.And the first terminal 71 contacts more reliably with clutch shaft bearing bracket 61.
And in the present embodiment, a part for base end part 711 is configured between the outer peripheral face and outside fixed part 602 of protuberance 42.But, can be also that base end part 711 configured in one piece are between the outer peripheral face and outside fixed part 602 of protuberance 42.And, in the present embodiment, extend setting unit 713 configured in one piece between the inner peripheral surface and inner side fixed part 603 of protuberance 42, but the part that also can just extend setting unit 713 is configured between the inner peripheral surface and inner side fixed part 603 of protuberance 42.
Being pressed into portion 612 fixes by being pressed into protuberance 42.With the arbitrary face being pressed in inner peripheral surface and the outer peripheral face that face that portion 612 is pressed into mutually can be protuberance 42.For example, can be the inner peripheral surface that inner side fixed part 603 is pressed into protuberance 42.And also the outer peripheral face of protuberance 42 is pressed into outside fixed part 602.
As shown in Fig. 3 and Fig. 5, the wire portion 73 of lead-in wire 7 extends downwards along the outer peripheral face of motor case 4 from the first terminal 71.The motor case 4 of present embodiment has two wall portions 44 at its outer peripheral face.Two wall portions 44 are from the bottom of outer surface groove 81 along the bottom that roughly extends axially the outer peripheral face of stator maintaining part 41.Wire portion 73 is configured between two wall portions 44 at the outer peripheral face of motor case 4.Thus, can suppress go between 7 damages and hooking.In addition, motor case 4 also can have three above wall portions 44.And wall portion 44 also can extend to from the bottom of outer surface groove 81 bottom of stator maintaining part 41 intermittently.
And as shown in Figure 5, the first terminal 71 of present embodiment is with respect to being configured in partial configuration between wall portion 44 in the position of staggering to a circumferential side in wire portion 73., being positioned at than the part of the 44 top sides' of wall portion position in wire portion 73 extended sideling from the upper end of wall portion 44.Consequently, being positioned at than the part of the 44 top sides' of wall portion position in wire portion 73 is applied with to tension force.Thus, in the present embodiment, the upper end of wall portion 44 becomes the fulcrum 45 that 7 the wire portion 73 of going between is applied to tension force., motor case 4 has 7 fulcrums 45 that apply tension force that go between at its outer peripheral face.And the circumferential center configuration of the first terminal 71 is in the position by a circumferential side than fulcrum 45.Thus, can suppress to go between 7 bending and lax.
And as shown in Fig. 3 and Fig. 7, wire portion 73 extends to radially inner side along the lower surface of stator maintaining part 41 from the bottom of the outer peripheral face of stator maintaining part 41.The end of a side contrary with the first terminal 71 sides of wire portion 73 is connected with the second terminal 72.The second terminal 72 and the second bearing bracket 62 are fixing by screw 900.Thus, the second terminal 72 is electrically connected with the second bearing bracket 62.
Thus, clutch shaft bearing bracket 61 and the second bearing bracket 62 7 are electrically connected by going between.Consequently, can suppress the galvanic corrosion phenomenon of clutch shaft bearing 51 and the second bearing 52.
3. variation
Above, the execution mode exemplary to the utility model is illustrated, but the utility model is not limited to above-mentioned execution mode.
Fig. 8 is the partial, longitudinal cross-sectional of the related motor 1B of a variation.In the example of Fig. 8, the first terminal 71B has base end part 711B, bend 712B and extends setting unit 713B.Base end part 711B roughly extends axially on edge upward from the upper end of wire portion 73B.Bend 712B extends to radially inner side from the upper end of base end part 711B.Extend setting unit 713B from the end of the radially inner side of bend 712 downward and radially inner side extend sideling.Therefore, the spaced radial between base end part 711B and extension setting unit 713B is along with expanding downward.And extending setting unit 713B can radially there is strain.
In the example of Fig. 8, the end of the radial outside of base end part 711B and end and the clutch shaft bearing bracket 61B Elastic Contact of extending the radially inner side of setting unit 713B.Thus, the first terminal 71B contacts more reliably with clutch shaft bearing bracket 61B.Therefore, clutch shaft bearing bracket 61B and the first terminal 71B conducting more reliably.Particularly, even in the time that the radial depth size of inner surface groove 83B is larger than the radial thickness size of extending setting unit 713B, also conducting clutch shaft bearing bracket 61B and the first terminal 71B more reliably.
In addition, in the example of Fig. 8, the end of the radial outside of base end part 711B contacts with clutch shaft bearing bracket 61B with end two sides of the radially inner side that extends setting unit 713B.But can be also that the end of radial outside of base end part 711B and any one of extending in the end of radially inner side of setting unit 713B contact with clutch shaft bearing bracket 61B.
Fig. 9 is the partial, longitudinal cross-sectional of the related motor 1C of other variation.In the example of Fig. 9, the first terminal 71C has base end part 711C and the 714C of spring portion that can strain.Base end part 711C is along the outer peripheral face configuration of protuberance 42C.The 714C of spring portion is outstanding towards radial outside and below from base end part 711C.And can radially there is strain in the 714C of spring portion.
Thus, can make the 714C of spring portion contact more reliably with the outside fixed part 602C of clutch shaft bearing bracket 61C.Therefore, can make clutch shaft bearing bracket 61C and the first terminal 71C conducting more reliably.Particularly, even in the time that the radial depth size of the outer surface groove 81C of slot part 421C is larger than the radial thickness size of base end part 711C, also can make clutch shaft bearing bracket 61C and the first terminal 71C conducting more reliably.
In addition, in the example of Fig. 9, be provided with the 714C of spring portion at the base end part 711C of the first terminal 71C, but also can spring portion be set at other positions of the first terminal.For example, can be also that the first terminal has base end part, bend and extends setting unit, and at bend or extension setting unit, spring portion is set, this spring portion contacts with clutch shaft bearing bracket.
Figure 10 is the exploded longitudinal section of the related motor 1D of other variation.Figure 11 is the partial perspective view of the motor case 4D in motor 1D and the 7D that goes between.In the example of Figure 10 and Figure 11, the first terminal 71D has base end part 711D, bend 712D, extends setting unit 713D and the 714D of spring portion.Base end part 711D roughly extends axially on edge upward from the upper end of wire portion 73D.Bend 712D extends to radially inner side from the upper end of base end part 711D.Extending setting unit 713D extends downward from the end of the radially inner side of bend 712D.And the 714D of spring portion is outstanding upward from bend 712D.
And the protuberance 42D of motor case 4D has hole 422D, outside protuberance 423D and inner side protuberance 424D.Hole 422D caves in towards downside from the upper surface of protuberance 42D.Outside protuberance 423D is outstanding to the position of the top side in bottom surface than hole 422D at the radial outside of hole 422D.Inner side protuberance 424D is outstanding to the position of the top side in bottom surface than hole 422D at the radially inner side of hole 422D.The base end part 711D of the first terminal 71D and bend 712D are configured in respectively outer peripheral face and the upper surface of outside protuberance 423D.And, extend setting unit 713D and be configured in the 422D of hole., hole 422D matches and forms with the position of the extension setting unit 713D of the first terminal 71D.Thus, in the different multiple motors of the thickness of protuberance 42D, can use general the first terminal.
And in the example of Figure 10, the 612D of the portion that is pressed into of clutch shaft bearing bracket 61D has annulus 601D and fixed part 603D.Annulus 601D is roughly circular expansion along the upper surface of protuberance 42D.Fixed part 603D is downward roughly cylindric extension from the end of the radially inner side of annulus 601D.In this example, be pressed into the inner peripheral surface of inner side protuberance 424D by fixed part 603D, motor case 4D and clutch shaft bearing bracket 61D fix.
And if make the upper end of annulus 601D near protuberance 42D, the lower surface of annulus 601D contacts with the 714D of spring portion.Thus, clutch shaft bearing bracket 61D and the first terminal 71D conducting.Particularly, in the example of Figure 10 and Figure 11, the axial height of the upper end of outside protuberance 423D is lower than the axial height of the upper end of inner side protuberance 424D.And the two difference in height is larger than the axial width size of the bend 712D of the first terminal 71D.Thus, can prevent in the time that clutch shaft bearing bracket 61D is pressed into motor case 4D, the first terminal 71D hinders and is pressed into.,, even after being pressed into, between the lower surface of annulus 601D of clutch shaft bearing bracket 61D and the upper surface of the bend 712D of the first terminal 71D, remain end play.
And in the example of Figure 10 and Figure 11, the 714D of spring portion is outstanding upward from the upper surface of bend 712D.And the upper end of the 714D of spring portion is pressed into anteposition in than the position of the top side in upper end of inner side protuberance 424D at clutch shaft bearing bracket 61D.And can axially there is strain in the 714D of spring portion.Therefore, by being pressed into of clutch shaft bearing bracket 61D, the 714D of spring portion contacts with the lower surface of annulus 601D, and the 714D of spring portion is pressed downwards by annulus 601D.Thus, the first terminal 71D and clutch shaft bearing bracket 61D are by further conducting reliably.In addition, the structure of the 714D of spring portion of Figure 10 and Figure 11 is also applicable to the first terminal 71 of above-mentioned execution mode.
Figure 12 is the motor case 4E of the related motor of other variation and the partial enlarged drawing of lead-in wire 7E.Figure 13 is the motor case 4E of example and the figure of partial perspective view of lead-in wire 7E of Figure 12.Figure 14 is the partial, longitudinal cross-sectional of the motor of the example of Figure 12.
In the example of Figure 12, lead-in wire 7E is along the roughly axial arrangement of outer peripheral face edge of motor case 4E.Motor case 4E has the fulcrum 45E that lead-in wire 7E is applied to tension force at its outer peripheral face.And the circumferential center configuration of the first terminal 71E is in the position by a circumferential side than fulcrum 45E.
As shown in Figure 12 and Figure 13, the first terminal 71E has base end part 711E, bend 712E and extends setting unit 713E.Base end part 711E roughly extends axially on edge upward from the upper end of wire portion 73E.Bend 712E extends to radially inner side from the upper end of base end part 711E.And extending setting unit 713E is the terminal part of the first terminal 71E.And, extend setting unit 713E and roughly extend axially on edge downward from the end of the radially inner side of bend 712E.Base end part 711E is configured in the outer peripheral face of protuberance 42E.Bend 712E is configured in the upper surface of protuberance 42E.And extension setting unit 713E is configured in the inner peripheral surface of protuberance 42E.
Thus, by making the first terminal 71E be hook-shaped shape, fixing thereby the first terminal 71E can be affiliated in the upper end of protuberance 42E.Therefore the workability, can improve assembling motor time.
And, be provided with the slot part 421E than peripheral recesses on the surface of the protuberance 42E of motor case 4E.Slot part 421E is configured in the top of fulcrum 45E.As shown in Figure 12 and Figure 13, slot part 421E has outer surface groove 81E, upper surface groove 82E and inner surface groove 83E.Outer surface groove 81E is configured in the face of the radial outside of protuberance 42E, and extends to axial below from the upper surface of protuberance 42E.Upper surface groove 82E is configured in the upper surface of protuberance 42E.And inner surface groove 83E is configured in the face of the radially inner side of protuberance 42E, and extend to axial below from the upper surface of protuberance 42E.In surface groove 81E, upper surface groove 82E and inner surface groove 83E, configure respectively outside base end part 711E, the bend 712E of the first terminal 71E and extend setting unit 713E., in the continuous slot part 421E that comprises outer surface groove 81E, upper surface groove 82E and inner surface groove 83E, configure the first terminal 71E.
As shown in figure 12, the circumferential distance D1 between end and the fulcrum 45E of a circumferential side of slot part 421E is longer than the circumferential distance D2 between the end of the circumferential opposite side of slot part 421E and fulcrum 45E.As previously mentioned, the circumferential center configuration of the first terminal 71E is in the position by a circumferential side than fulcrum 45E.Therefore, wider in a side for configuring the slot part 421E of the first terminal 71E.Thus, can be used in the region of configuration the first terminal 71E large and can suppress the circumferential width of slot part 421E entirety.
And in the example of Figure 12 to Figure 14, motor case 4E has multiple protuberance 425E.Protuberance 425E is outstanding from the configuration plane 820E of the bend 712E configuration for the first terminal 71E.In a protuberance 425E in protuberance 425E, the first end face 84E and terminal end face 715E are opposed.The first end face 84E is the end face of a circumferential side of protuberance 425E.Terminal end face 715E is the end face of the circumferential opposite side of the first terminal 71E., as the first end face 84E of the first opposed faces and opposed as the terminal end face 715E of the second opposed faces.
Therefore,, if the first terminal 71E moves to opposite side by imposing on the tension force of lead-in wire 7E, the first end face 84E contacts with terminal end face 715E.Therefore, can suppress the first terminal 71E moves to opposite side.The tension force that consequently, can suppress to be applied to lead-in wire 7E weakens and the 7E that causes going between is bending lax.
The first end face 84E is with respect to circumferentially vertical.Thus, in the time that the first terminal 71E contacts with the first end face 84E, the first terminal 71E is difficult for sliding to opposite side.Therefore, can further suppress the first terminal 71E moves to opposite side.Therefore,, if the first end face 84E of protuberance 425E contacts with the terminal end face 715E of the first terminal 71E, the first terminal 71E can further move to opposite side hardly.
In the example of Figure 12 to Figure 14, the first end face 84E of each protuberance 425E is configured in the position by a circumferential side than fulcrum 45E.Thus, can apply tension force to lead-in wire 7E, and the 7E that can suppress to go between is bending lax.And motor case 4E has multiple protuberance 425E.Thus, can from multiple positions, select the position of the first terminal 71E.And, can regulate according to the lead-in wire length of 7E and bending situation the position of the first terminal 71E.
And as shown in figure 14, the bend 712E of the first terminal 71E is configured between configuration plane 820E and clutch shaft bearing bracket 61E.Protuberance 425E's is that the second end face 85E of end face of circumferential opposite side is identical with the first end face 84E with respect to circumferentially vertical.And terminal part 86E is the upper surface of protuberance 425E.Protuberance 425E is connected the first end face 84E with the second end face 85E.Distance maximum between the configuration plane 820E in terminal part 86E and protuberance 425E.
Between the terminal part 86E of protuberance 425E and clutch shaft bearing bracket 61E, have gap.Thus, protuberance 425E does not contact with clutch shaft bearing bracket 61E.Therefore,, by protuberance 425E is contacted with clutch shaft bearing bracket 61E, can suppress clutch shaft bearing bracket 61E and produce axle offset.
Larger than the circumferential width D4 of the first terminal 71E along the distance B 3 between two circumferentially adjacent protuberance 425E.Thus, can suppress the first terminal 71E and be laid in protuberance 425E top.Therefore,, by the first terminal 71E is contacted with clutch shaft bearing bracket 61E, can suppress clutch shaft bearing bracket 61E and produce axle offset.And the distance between the terminal part 86E of protuberance 425E and clutch shaft bearing bracket 61E is less than the gauge of the bend 712E of the first terminal 71E.Thus, can suppress the first terminal 71E and cross protuberance 425E along circumferentially mobile.
In addition, in the example of Figure 12, protuberance 425E is configured in the upper surface for bend 712E configuration of protuberance 42E, but the utility model is not limited to this.Protuberance is the configurable outer peripheral face for base end part 711E configuration at protuberance 42E also.Or protuberance is the configurable inner peripheral surface configuring for extension setting unit 713 at protuberance 42E also.
Figure 15 is the partial perspective view of the related motor case of other variation and lead-in wire.As shown in figure 15, the first terminal 71F has base end part 711F and bend 712F.Base end part 711F roughly extends axially on edge upward from the upper end of wire portion.Bend 712F extends to radially inner side from the upper end of base end part 711F.Base end part 711F is configured in the outer peripheral face of protuberance 42F.Bend 712F is configured in the upper surface of protuberance 42F.
Thus, be the shape of L word shape by the first terminal 71F, the first terminal 71F can be affiliated in the upper end of protuberance 42F and be fixed.Therefore the workability, can improve assembling motor time.
In the example of Figure 15, motor case has multiple protuberance 425F.Protuberance 425F is outstanding from the configuration plane 820F of the bend 712F configuration for the first terminal 71F.And in a protuberance 425F in protuberance 425F, the terminal end of the end face of a circumferential side of protuberance 425F and the circumferential opposite side of the first terminal 71F is in the face of putting.Thus, can suppress the first terminal 71F moves to circumferential opposite side.The tension force that consequently, can suppress to be applied to lead-in wire weakens and causes lead-in wire bending lax.
Figure 16 is the related motors of other variation, is the partial perspective view of its motor case and lead-in wire.Figure 17 is the partial, longitudinal cross-sectional of the motor in the example of Figure 16.Figure 18 is the partial sectional view of the motor in the example of Figure 16.
In the example of Figure 16 to Figure 18, motor case also has multiple protuberance 425G.Protuberance 425G gives prominence to from the configuration plane 820G that disposes the first terminal 71G at protuberance 42G.As shown in figure 17, for the first end face 84G of the end face of a circumferential side of protuberance 425G is with respect to circumferentially vertical.The first end face 84G is the first opposed faces.The terminal end face 715G of the first terminal 71G is the second opposed faces.The first opposed faces and the second opposed faces are opposed.And the second end face 85G is the end face of the circumferential opposite side of protuberance 425G.The second end face 85G is connected the end of the circumferential opposite side of protuberance 425G with the terminal part 86G of the first end face 84G.The second end face 85G be along with from circumferential opposite side towards a side and away from the slope shape of configuration plane 820G.
By this shape, if the first terminal 71G will move to opposite side, terminal end face 715G contacts with the first end face 84G of the protuberance 425G circumferentially opposite side is adjacent.And, can suppress to move to opposite side.The tension force that therefore, can suppress to be applied to lead-in wire weakens and causes lead-in wire bending lax.And if the first terminal 71G will be to a side shifting, the first terminal 71G can be along moving at the second end face 85G of the adjacent protuberance 425G of a circumferential side.As shown in figure 17, the second end face 85G also can contact with the first terminal 71G.Now, the first terminal 71G is upper to the second end face 85G.Thus, upper upper to protuberance 425G as the first terminal 71G, be not when circumferentially vertical etc. with the end face of the such as opposite side of protuberance 425G compared with the situation of slope shape, wider in the circumferential configurable region of the first terminal 71G.Thus, circumferential position that can fine adjustment the first terminal 71G.Consequently, easily regulate the degree of crook of lead-in wire.
In addition, as shown in figure 18, the 612G of the portion that is pressed into of clutch shaft bearing bracket 61G has annulus 601G, outside fixed part 602G and inner side fixed part 603G.Annulus 601G is positioned at the top of protuberance 42G, and is roughly circular expansion along the upper surface of protuberance 42G.Outside fixed part 602G is roughly cylindric extension downwards from the end of the radial outside of annulus 601G.And inner side fixed part 603G is downward roughly cylindric extension from the end of the radially inner side of annulus 601G.A part of the base end part 711G of the first terminal 71G is configured between the outer peripheral face and outside fixed part 602G of protuberance 42G.Bend 712G is configured between the upper surface and annulus 601G of protuberance 42G.And, extend setting unit 713G and be configured between the inner peripheral surface and inner side fixed part 603G of protuberance 42G.
Be pressed into the 612G of portion and protuberance 42G fixes by being pressed into.The face being pressed into mutually with the portion 612G of being pressed into can be the arbitrary face in inner peripheral surface and the outer peripheral face of protuberance 42G.In the example of Figure 18, the outer peripheral face of protuberance 42G is pressed into outside fixed part 602G.And protuberance 425G is configured in the upper surface of protuberance 42G., the upper surface with protuberance 425G in protuberance 42G is not the face fixing by being pressed into.Therefore,, even if upper the second end face 85G to protuberance 425G of the first terminal 71G is upper, be also difficult for occurring the axle offset bad or clutch shaft bearing bracket 61G that is pressed between protuberance 42G and clutch shaft bearing bracket 61G.
And, use hook-shaped the first terminal 71G and the protuberance 425G with slope shape be configured in any one in outer peripheral face or the inner peripheral surface of protuberance 42G.Now, the first terminal 71G is upper needs to make the base end part 711G of the first terminal 71G more abundant with the distance between extension setting unit 713G to this protuberance 425G., need to make bend 712G longer.As shown in the example of Figure 16, by protuberance 425G being configured in to the upper surface of protuberance 42G, do not need to make bend 712G elongated.
Figure 19 is the partial sectional view of the related motor of other variation.In the example of Figure 19, protuberance 42H has from the outstanding protuberance 425H of configuration plane 820H of the bend 712H configuration for the first terminal 71H.For the first end face 84H of the end face of a circumferential side of protuberance 425H is connected the end of a circumferential side of protuberance 425H with the terminal part 86H of the second end face 85H of the end face for circumferential opposite side.The first end face 84H is along with from a circumferential side towards opposite side and away from the slope shape of configuration plane 820H.
In the example of Figure 19, the first terminal 71H's is that the lower surface of face and the first end face 84H of a protuberance 425H of configuration plane 820H side contacts.Thus, can suppress the first terminal moves to opposite side.
Figure 20 is the partial perspective view of the related motor case of other variation and lead-in wire.In the example of Figure 20, the protuberance 42J of motor case has the groove 421J of the first terminal 71J for configuring lead-in wire.And motor case has the protuberance 425J outstanding from the inner peripheral surface of protuberance 42J.
Protuberance 42J has upper surface portion 426J in the bottom of the inner surface groove 83J of groove 421J.Upper surface portion 426J is the face of radially expanding.In the example of Figure 20, the bottom of protuberance 425J is connected with upper surface portion 426J., protuberance 425J is the shape of extending upward from upper surface portion 426J.Thus, protuberance 425J is the shape from extending upward along the upper surface portion 426J of circumferentially expansion.Thus, at protuberance 425J, during as a part for motor case and by moulding, protuberance 425J can not hinder and extract up and down mould.Consequently, even protuberance 425J is set at motor case, also can not use complexity and the high mould of price.
In addition, between protuberance, connected upper surface portion is not the face that protuberance has yet.Upper surface portion connected between protuberance can be also for example a part for motor case, and is the face of radially expanding around protuberance.
Figure 21 is the partial perspective view of the related motor case of other variation and lead-in wire.The partial cross sectional view of protuberance 42K and the first terminal 71K is shown in the upper right of Figure 21.In the example of Figure 21, the inner peripheral surface of the protuberance 42K of motor case is the configuration plane 830K for the extension setting unit 713K configuration of the first terminal 71K of lead-in wire.Protuberance 42K has multiple from the outstanding projection 427K of configuration plane 830K.And the extension setting unit 713K of the first terminal 71K have from the recess 716K of opposed depression of configuration plane 830K.
One that is arranged in the projection 427K of protuberance 42K is embedded in the recess 716K that is arranged on the first terminal 71K., at projection 427K of internal configurations of recess 716K.Thus, can suppress the circumferential position skew of the first terminal 71K.The tension force that consequently, can suppress to be applied to lead-in wire weakens and causes lead-in wire bending lax.
And in the example of Figure 21, protuberance 42K has multiple projection 427K.Thus, have in the structure of recess 716K at the first terminal 71K, can make the interval of the projection 427K that is arranged on protuberance 42K less than the circumferential width of the first terminal 71K.Thus, compared with the structure that has protuberance, can reduce the spacing of fixed terminal with protuberance as shown in the example of Figure 12 to Figure 14, the first terminal 71K can inching in circumferential position.
In addition, in the example of Figure 21, recess 716K is arranged on and extends setting unit 713K, but the utility model is not limited to this.Also can make recess 716K be arranged on base end part 711K or the bend 712K of the first terminal 71K, projection 427K is arranged on outer peripheral face or the upper surface of protuberance 42K.
Figure 22 is the partial perspective view of the related motor case of other variation and lead-in wire.The partial cross sectional view of protuberance 42L and the first terminal 71L is shown in the upper right of Figure 22.In the example of Figure 22, the inner peripheral surface of the protuberance 42L of motor case is the configuration plane 830L for the extension setting unit 713L configuration of the first terminal 71L of lead-in wire.Protuberance 42L has multiple recess 428L from configuration plane 830L depression.And the extension setting unit 713L of the first terminal 71L has the projection 717L outstanding towards configuration plane 830L.
In of recess 428L of being arranged on configuration plane 830L, be embedded with the projection 717L that is arranged on the first terminal 71L., at the internal configurations projection 717L of a recess 428L.Thus, can suppress the circumferential position skew of the first terminal 71L.The tension force that consequently, can suppress to be applied to lead-in wire weakens and causes lead-in wire bending lax.
And in the example of Figure 22, protuberance 42L has multiple recess 428L.Thus, have in the structure of multiple recess 428L at protuberance 42L, can make the interval of the recess 428L that is arranged on protuberance 42L less than the circumferential width of the first terminal 71L.Thus, compared with the structure that there is protuberance with protuberance as shown in the example of Figure 12 to Figure 14, can reduce the spacing of fixing the first terminal, and circumferential position that can inching the first terminal 71L.
In addition, in the example of Figure 22, projection 717L is arranged on and extends setting unit 713L, but the utility model is not limited to this.Also can make projection 717L be arranged on base end part 711L or the bend 712L of the first terminal 71L, recess 428L is arranged on outer peripheral face or the upper surface of protuberance 42L.
Figure 23 is the partial sectional view of the related motor of other variation.In the example of Figure 23, motor case has multiple protuberance 425M.Protuberance 425M is outstanding from the configuration plane 820M of the bend 712M configuration for the first terminal 71M.Bend 712M have from the opposed slit 718M facing to top depression of configuration plane 820M.
The first terminal 71M is configured in primary importance P1, and primary importance P1 is the position that configures protuberance 425M in slit 718M.Now, opposed with the first end face 84M of end face of a circumferential side that is protuberance 425M towards the terminal medial surface 719M of opposite side in slit 718M.That is, terminal medial surface 719M is the second opposed faces, and the second opposed faces is with opposed as the first end face 84M of the first opposed faces.Thus, can suppress the first terminal 71M is offset to opposite side.
And the first terminal 71M is configured in the second place P2 between protuberance 425M as shown in double dot dash line in Figure 23.Now, for the terminal end face 715M of opposite side end face and the first end face 84M of protuberance 425M of the first terminal 71M are opposed.That is, terminal end face 715M is the second opposed faces, and the second opposed faces is with opposed as the first end face 84M of the first opposed faces.Thus, can suppress the first terminal 71M is offset to opposite side.
Thus, in the example of Figure 23, also can suppress the first terminal 71M and be offset to opposite side.The tension force that therefore, can suppress to be applied to lead-in wire weakens and causes lead-in wire bending lax.And, in the example of Figure 23, compared with the structure that does not there is slit with the first terminal as shown in Figure 12 to Figure 14, can dwindle the spacing of fixing the first terminal.
And, also can be different from the shape shown in each figure of the application about the shape of the detailed part of each parts.And the each member occurring in above-mentioned execution mode and variation can carry out appropriately combined in the scope not conflicting.

Claims (38)

1. a motor, it comprises:
Axle, it configures along central axis on above-below direction;
Rotor, it together rotates with described axle around described axle;
Stator, it is configured in the radial outside of described rotor;
Resinous motor case, it holds at least a portion of described stator;
Clutch shaft bearing, it is supporting described axle for rotating than the top side's of described rotor position, and is conductivity between the outer peripheral face of described clutch shaft bearing and inner peripheral surface;
The second bearing, it is supporting described axle for rotating than described rotor position on the lower, and is conductivity between the outer peripheral face of described the second bearing and inner peripheral surface;
The clutch shaft bearing bracket of conductivity, it is electrically connected with described clutch shaft bearing, and directly or keep described clutch shaft bearing by the parts of other conductivity;
The second bearing bracket of conductivity, it is electrically connected with described the second bearing, and directly or keep described the second bearing by the parts of other conductivity; And
Lead-in wire, it is electrically connected described clutch shaft bearing bracket with described the second bearing bracket,
Described motor is characterised in that,
Described motor case has the protuberance extending vertically upward,
Described lead-in wire has the first terminal being electrically connected with described clutch shaft bearing bracket,
Described the first terminal is by making its at least a portion be kept by described protuberance and the clamping of described clutch shaft bearing bracket.
2. motor according to claim 1, is characterized in that,
Described protuberance is the tubular extending vertically upward,
Described the first terminal has:
Base end part, its wire portion from described lead-in wire extends upward vertically; And
Bend, extend to radially inner side its upper end from described base end part,
Described base end part is configured in the outer peripheral face of described protuberance,
Described bend is configured in the upper surface of described protuberance.
3. motor according to claim 2, is characterized in that,
Described the first terminal also has the extension setting unit of extending from the end of the radially inner side of described bend downwards,
Described extension setting unit is configured in the inner peripheral surface of described protuberance.
4. motor according to claim 3, is characterized in that,
Described clutch shaft bearing bracket has:
Annulus, its expansion of upper surface along described protuberance; And
Fixed part, its from the end of the radial outside of described annulus or the end of radially inner side extend downwards,
At least a portion of described base end part or described extension setting unit is configured between described protuberance and described fixed part,
Described bend is configured between the upper surface and described annulus of described protuberance.
5. motor according to claim 4, is characterized in that,
Described protuberance has slot part,
At least a portion of described the first terminal is configured in described slot part.
6. motor according to claim 5, is characterized in that,
The depth dimensions of described slot part is less than the gauge at the position contacting with described clutch shaft bearing bracket that is configured in the described the first terminal in described slot part.
7. motor according to claim 5, is characterized in that,
The depth dimensions of described slot part is larger than the gauge that is configured in the described the first terminal in described slot part, and described the first terminal is configured between described clutch shaft bearing bracket and described protuberance.
8. according to the motor described in any one in claim 5 to 7, it is characterized in that,
Described slot part has upper surface groove in the upper surface of described protuberance,
Described bend is configured in described upper surface groove.
9. according to the motor described in any one in claim 5 to 7, it is characterized in that,
Described slot part has from the upper surface of described protuberance to the outer surface groove extending below axially at the mask of the radial outside of described protuberance,
Described base end part is configured in described outer surface groove.
10. according to the motor described in any one in claim 5 to 7, it is characterized in that,
Described slot part has from the upper surface of described protuberance to the inner surface groove extending below axially at the mask of the radially inner side of described protuberance,
Described extension setting unit is configured in described inner surface groove.
11. according to the motor described in any one in claim 1 to 7, it is characterized in that,
Described the first terminal also has spring portion that can strain,
Described spring portion contacts with described clutch shaft bearing bracket.
12. according to the motor described in any one in claim 4 to 7, it is characterized in that,
Described the first terminal also has spring portion that can strain,
Described spring portion is outstanding upward from described bend, and contacts with the lower surface of described annulus.
13. according to the motor described in any one in claim 3 to 7, it is characterized in that,
Described motor case has the hole of caving in to downside from the upper surface of described protuberance,
Described extension setting unit is configured in described hole.
14. according to the motor described in any one in claim 4 to 7, it is characterized in that,
Spaced radial between described base end part and described extension setting unit is along with expanding downward,
The end of the radially inner side of the end of the radial outside of described base end part or described extension setting unit contacts with described clutch shaft bearing bracket.
15. motors according to claim 14, is characterized in that,
Described clutch shaft bearing bracket has:
Outside fixed part, extend downwards its end from the radial outside of described annulus; And
Inner side fixed part, extend downwards its end from the radially inner side of described annulus,
At least a portion of described base end part is configured between the outer peripheral face and described outside fixed part of described protuberance,
At least a portion of described extension setting unit is configured between the inner peripheral surface and described inner side fixed part of described protuberance.
16. motors according to claim 1, is characterized in that,
Described lead-in wire configures vertically along the outer peripheral face of described motor case,
Described motor case has the fulcrum that described lead-in wire is applied to tension force at described outer peripheral face,
The circumferential center configuration of described the first terminal is in the position by a circumferential side than described fulcrum.
17. motors according to claim 16, is characterized in that,
Described protuberance has slot part, and at least a portion of described the first terminal is configured in described slot part,
Described slot part is at least configured in the top of described fulcrum,
Circumferential distance between end and the described fulcrum of a circumferential side of described slot part is longer than the circumferential distance between the circumferential end side of described slot part and described fulcrum.
18. motors according to claim 17, is characterized in that,
Described protuberance is the tubular extending vertically upward,
Described the first terminal has:
Base end part, its wire portion from described lead-in wire extends upward vertically; And
Bend, extend to radially inner side its upper end from described base end part,
Described base end part is configured in the outer peripheral face of described protuberance,
Described bend is configured in the upper surface of described protuberance.
19. motors according to claim 18, is characterized in that,
Described the first terminal also has the extension setting unit of extending from the end of the radially inner side of described bend downwards,
Described extension setting unit is configured in the inner peripheral surface of described protuberance.
20. motors according to claim 19, is characterized in that,
Described protuberance has protuberance, and described protuberance is outstanding from the configuration plane of at least a portion configuration for described the first terminal,
First opposed faces towards a circumferential described side of described protuberance and second opposed faces towards circumferential opposite side of described the first terminal are opposed.
21. motors according to claim 20, is characterized in that,
In at least one of described protuberance, described the first opposed faces is configured in the position by a circumferential described side than described fulcrum.
22. motors according to claim 21, is characterized in that,
Described protuberance has multiple described protuberances.
23. motors according to claim 22, is characterized in that,
Distance along two circumferentially adjacent described protuberances is larger than the circumferential width of described the first terminal.
24. motors according to claim 23, is characterized in that,
Described motor case has the radially upper surface portion of expansion around described protuberance or described protuberance,
The bottom of described protuberance is connected with described upper surface portion.
25. motors according to claim 24, is characterized in that,
Described first opposed faces of described protuberance is circumferentially vertical with respect to described.
26. motors according to claim 25, is characterized in that,
Described first opposed faces of described protuberance contacts with described second opposed faces of described the first terminal.
27. motors according to claim 20, is characterized in that,
The end face of the circumferential described opposite side of described protuberance be along with from described opposite side towards a described side and away from the slope shape of described configuration plane.
28. motors according to claim 18, is characterized in that,
Described protuberance has from the outstanding protuberance of configuration plane of at least a portion configuration for described the first terminal,
The end face of a circumferential described side of described protuberance is along with the described side from circumferential is towards opposite side and away from the slope shape of described configuration plane.
29. according to the motor described in claim 27 or 28, it is characterized in that,
Described protuberance is configured in the upper surface of described protuberance.
30. according to the motor described in any one in claim 20 to 28, it is characterized in that,
A described part for described the first terminal is configured between described configuration plane and described clutch shaft bearing bracket,
Between the terminal part of described protuberance and described clutch shaft bearing bracket, have gap.
31. motors according to claim 30, is characterized in that,
The terminal part of described protuberance is less than the gauge of a described part for described the first terminal with the distance of described clutch shaft bearing tray chamber.
32. according to the motor described in claim 18 or 19, it is characterized in that,
Described protuberance has from the recess of the configuration plane depression of at least a portion configuration for described the first terminal,
A described part for described the first terminal has the projection outstanding towards described configuration plane,
Described projection is configured in the inside of described recess.
33. motors according to claim 32, is characterized in that,
Described protuberance has multiple described recesses.
34. according to the motor described in claim 18 or 19, it is characterized in that,
Described protuberance has from the outstanding projection of configuration plane of at least a portion configuration for described the first terminal,
A described part for described the first terminal have from the recess of opposed depression of described configuration plane,
Described projection is configured in the inside of described recess.
35. motors according to claim 34, is characterized in that,
Described protuberance has multiple described projections.
36. according to the motor described in any one in claim 1 to 6, it is characterized in that,
Described motor case has at least two wall portions of extending vertically at its outer peripheral face,
Described lead-line configuration is between described two wall portions.
37. according to the motor described in any one in claim 1 to 6, it is characterized in that, described motor also has the circuit board that drive current is provided to described stator,
Be equipped with the electronic circuit that carries out pulse width modulation mode control at described circuit board.
38. 1 kinds of air conditioners, is characterized in that,
This air conditioner has the motor described in any one in claim 1 to 6.
CN201320787257.7U 2012-12-07 2013-12-03 Motor and air conditioner Expired - Fee Related CN203632430U (en)

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CN107302278A (en) 2017-10-27
CN103872833A (en) 2014-06-18

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