CN202353351U - Motor - Google Patents
Motor Download PDFInfo
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- CN202353351U CN202353351U CN2011204203204U CN201120420320U CN202353351U CN 202353351 U CN202353351 U CN 202353351U CN 2011204203204 U CN2011204203204 U CN 2011204203204U CN 201120420320 U CN201120420320 U CN 201120420320U CN 202353351 U CN202353351 U CN 202353351U
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- terminal
- busbar
- motor
- adapter
- conductor wire
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Abstract
The utility model relates to a motor which comprises a shaft, a rotor, a coil, a stator, an adapter, a bus bar and the like. The bus bar comprises a plurality of terminal parts provided with joint surfaces which extend along an axial direction. The terminal parts are opposite to the adapter for arrangement in a radial direction at intervals. On one end of the axial direction of the stator, the ends of a plurality of conductive wires extending along the axial direction are led out from the coil. The ends of the conductive wires are connected with the joint surfaces of the terminal parts at positions which are closer to the outer side of the radial direction than the terminal parts. Through ultrasonic welding, the ends of the conductive wires are jointed on the joint surfaces of the terminal parts.
Description
Technical field
The utility model relates to motor.
Background technology
About the utility model, the motor that a kind of portion of terminal and coil terminal line engage through ultra-sonic welded is disclosed in TOHKEMY 2002-300745 communique.
The look-ahead technique document
Patent documentation
[special permission document 1] TOHKEMY 2002-300745 communique
Owing to only produce heat when carrying out ultra-sonic welded, so the method is superior to other welding methods such as resistance welded, TIG welding in the part.
But, owing to when carrying out ultra-sonic welded, need the junction be pressed from both sides, so in the motor shown in TOHKEMY 2002-300745 communique, need manage to make the position of portion of terminal to squint in the axial direction.And become complicacy and workload increases if the positional precision of portion of terminal and coil terminal line will make joining process inadequately.
Therefore, the purpose of the utility model provides a kind of motor that can easily carry out ultra-sonic welded.
Summary of the invention
The utility model motor comprises axle, rotor, coil, stator, adapter and busbar.Axle is supported for around rotation and rotates freely.Rotor is arranged on the said axle.Coil forms through the coiling conductor wire.Stator be arranged on said rotor around.Adapter is arranged on an axial end and the insulation of said stator.Busbar is supported by said adapter.
Said busbar comprises a plurality of portion of terminal with the composition surface of extending vertically.Said portion of terminal is opposed across gap and said adapter diametrically.On an axial end of said stator, more derive near the position of radial outside from the said portion of terminal of ratio of said coil the end of a plurality of said conductor wires that extend vertically.The end of said conductor wire is joining with the composition surface of said portion of terminal on more near the position of radial outside than said portion of terminal.And through ultra-sonic welded, the engaged at end of said conductor wire is on the composition surface of said portion of terminal.
In this motor, a plurality of portion of terminal with composition surface are opposed across gap and adapter diametrically.And more derive near the position of radial outside from the ratio portion of terminal of coil the end of conductor wire.And the end of conductor wire is joining with the composition surface on more near the position of radial outside than portion of terminal.
Therefore, because the end of conductor wire more derives near the position of radial outside from the ratio portion of terminal of coil, so the end of conductor wire is not arranged on the below of adapter and portion of terminal.So, when the end of splice terminal portion and conductor wire, carry out the location of the end of portion of terminal and conductor wire easily.
And, when carrying out ultra-sonic welded, can be with in the gap that is inserted between adapter and the portion of terminal in the pair of engaging arm of the end of clamping portion of terminal in the ultrasonic bonding machine and conductor wire.Thus, squinted in the axial direction in the position of portion of terminal can splice terminal portion and the end of conductor wire.
Description of drawings
Fig. 1 is the general profile chart of the motor of this execution mode of expression.
Fig. 2 is the approximate three-dimensional map that stator is cut apart in expression.
Fig. 3 is the approximate three-dimensional map of expression stator and busbar unit.
Fig. 4 is the exploded perspective view of the summary of expression busbar unit.
Fig. 5 is an approximate three-dimensional map of looking the busbar unit from inner end sideways.
Fig. 6 a is the skeleton diagram of expression busbar and manufacturing process thereof.
Fig. 6 b is the skeleton diagram of expression busbar and manufacturing process thereof.
Fig. 6 c is the skeleton diagram of expression busbar and manufacturing process thereof.
Fig. 6 d is the skeleton diagram of expression busbar and manufacturing process thereof.
Fig. 6 e is the skeleton diagram of expression busbar and manufacturing process thereof.
Fig. 7 is an approximate vertical view of looking the busbar unit from inner end sideways.
Fig. 8 a is the general profile chart along the main position of the A-A line of Fig. 7.
Fig. 8 b is the general profile chart along the main position of the B-B line of Fig. 7.
Fig. 8 c is the general profile chart along the main position of the C-C line of Fig. 7.
Fig. 8 d is the general profile chart along the main position of the D-D line of Fig. 7.
Fig. 9 is the approximate vertical view of stator.
Figure 10 is the skeleton diagram at the main position of expression motor.
Figure 11 is the skeleton diagram of seeing from the arrow E direction of Figure 10.
Figure 12 is the skeleton diagram that is used to explain the joint of portion of terminal and conductor wire end.
Figure 13 a is the summary side elevation of the junction of expression portion of terminal and conductor wire end.
Figure 13 b is the general principal view of the junction of expression portion of terminal and conductor wire end.
Figure 14 is the general profile chart of the motor of another execution mode of expression.
Figure 15 is the general profile chart of the busbar unit of another execution mode of expression.In order to represent internal structure, omitted the part of busbar unit.
Figure 16 a is the busbar of another execution mode of expression and the skeleton diagram of manufacturing process thereof.
Figure 16 b is the busbar of another execution mode of expression and the skeleton diagram of manufacturing process thereof.
Figure 16 c is the busbar of another execution mode of expression and the skeleton diagram of manufacturing process thereof.
Figure 16 d is the busbar of another execution mode of expression and the skeleton diagram of manufacturing process thereof.
Figure 17 is the skeleton diagram of the variation of expression motor.
Figure 18 a is the variation of expression busbar and the skeleton diagram of manufacturing process thereof.
Figure 18 b is the variation of expression busbar and the skeleton diagram of manufacturing process thereof.
Figure 18 c is the variation of expression busbar and the skeleton diagram of manufacturing process thereof.
Embodiment
Below specify the execution mode of the utility model according to accompanying drawing.But following explanation is an example in essence, and the utility model does not limit its scope of application or its purposes.
Fig. 1 representes the motor of this execution mode.This motor 1 is an inner rotor type brushless motor.Motor 1 has shell 2, axle 3, rotor 4, stator 5, busbar unit 6, rotation angle sensor 7 etc.The center of rotor 4, stator 5 and busbar unit 6 is all consistent with central axis A.
In shell 2, have the casing that the round-ended cylinder shape is arranged 11 and discoid lid 12 that at one end have opening.Around the openend of casing 11, be extended with flange 11a.On this flange 11a, connect, fixing lid 12.Axle window 12a is at the central portion opening of lid 12.On the bottom surface of casing 11, be provided with the 11b of bearing portion opposed to each other with this window 12a.Inside at the casing 11 that is sealed by lid 12 is provided with axle 3 etc.
Inboard at 11b of bearing portion and axle window 12a is respectively equipped with bearing 8.Axle 3 is rotated through these bearings 8 and is supported on freely on the shell 2.One side end of axle 3 is projected into the outside of lid 12 through axle window 12a.Rotary driving force through this end output motor 1.
Mid portion at axle 3 is fixed with rotor 4 with one heart.Rotor 4 is made up of with magnet 42 grades rotor core 41 cylindraceous.Magnet 42 is arranged on the outer peripheral face of rotor core 41.The mode that the magnetic pole of magnet 42 is alternately arranged with the N utmost point and the S utmost point in a circumferential direction disposes.Be provided with stator 5 cylindraceous around the rotor 4.Stator 5 is fixed on the inboard of casing 11.The inner peripheral surface of stator 5 is opposed across the outer peripheral face of minim gap and rotor 4.
The part of coil 53 except that the end portion of two conductor wire end 55 is molded through resin bed 54.Because the cardinal extremity of conductor wire end 55 partly uses resin bed 54 molded, thereby conductor wire end 55 is positioned on the precalculated position.And,,, therefore can the end portion of conductor wire end 55 stably be held in linearity so be difficult to deflection from the end portion of the outstanding conductor wire end 55 of resin bed 54 because cardinal extremity partly is molded on the resin bed 54.And because conductor wire end 55 is under the state by clamps, to be molded, so compare with the mode that is not molded, conductor wire end 55 outstanding positional precisions are stablized.Therefore, the portion of terminal of stating after carrying out easily 66 and the joint of conductor wire end 55.In addition, separately configuration of conductor wire end 55 etc. is described afterwards.
As shown in Figure 3, on a side end (end of the open side of casing 11, outlet side end 5a) of these conductor wire end 55 of derivation of stator 5, busbar unit 6 is installed.Of Fig. 4, Fig. 5, the adapter 62 of busbar unit 6 has a plurality of (in this execution mode being 4) busbar 61 and the insulating properties that supports these busbars 61.
(busbar)
The busbar 61 of this execution mode gone up mutually by the U phase that is connected to stator 5, V phase, W three constitutes with busbar 61u, 61v, 61w and a commons busbar 61x being connected on the neutral point mutually.That is each coil 53 Y-shaped connection of this execution mode.
Busbar 61 is the roughly the same tape conductor of integral thickness.On the busbar 61, be provided with around the central axis A body 65 of crooked band plate-like in the form of a ring and the portion of terminal 66 of a plurality of band plate-like of being wholely set with body 65.Body 65 is made up of parts with portion of terminal 66.In this execution mode, mutually with last 4 portion of terminal 66u, 66v, the 66w of being respectively equipped with of busbar 61u, 61v, 61w body 65u, 65v, 65w separately.And the body 65x of commons busbar 61x is provided with 12 portion of terminal 66x.Below, need not discern U phase, V phase, W phase, public phase time when only needing explanation, omit u, v, w, x, only say busbar 61.
Be connected end 67u, 67v, 67w with body 65 is provided with two (also existing becomes one situation after engaging) band plate-like integratedly respectively last with busbar 61u, 61v, 61w mutually. Splicing ear 67u, 67v, 67w are made up of parts with body 65 and portion of terminal 66.The preferred end 67 that connects is rectangle, and from the both ends of the band plate-like of body 65 to extending axially.In addition, axially expression below is called axially along the direction of central axis A.Connecting end 67 is located on the axial opposed side of portion of terminal 66 across body 65.
Portion of terminal 66 (66u, 66v, 66w, 66x) preferably is respectively on the predetermined position of the hook-shaped side that is located at body 65.Portion of terminal 66 has the 66c of terminal ends portion that the terminal extension 63 that stretches out to the side from the middle predetermined position of the length direction of body 65 links to each other with end with terminal extension 63.At length, terminal extension 63 has terminal base portion 66a, terminal pars intermedia 66b.Terminal base portion 66a stretches out and extend with the direction of body 65 quadratures on the edge to the side from the predetermined position of the side of body 65, and size is short.Terminal pars intermedia 66b links to each other with the end of terminal base portion 66a and to the radial direction outside curve of body 65, extend with the direction of terminal base portion 66a quadrature on the edge.That is to say terminal pars intermedia 66b and body 65 quadratures.The 66c of terminal ends portion links to each other with terminal pars intermedia 66b and to bent with the opposed lateral bendings of body 65, and extend with the direction of terminal pars intermedia 66b quadrature on the edge.
(manufacturing approach of busbar)
These busbars 61 do not have the bare wire (for example bare copper wire 68) of dielectric film to form through processing one.
Fig. 6 representes the manufacturing process of busbar 61.At first, shown in Fig. 6 a, prepare the bare copper wire 68 (wire rod) of a predetermined length.Bare copper wire 68 can use general article, for example can use the bare copper wire in the line footpath about 2mm.
Then, shown in Fig. 6 b, bending bare copper wire 68, formation is as the body formation portion 69 of body 65, as the terminal formation portion 70 of portion of terminal 66 and as the link formation portion 71 that connects end 67.Specifically, for example terminal formation portion 70 turns back through the middle parts that bare copper wire 68 is predetermined, and make the bare copper wire 68 that extends opposed to each other from folded back position with the mode that is parallel to each other in fact each other near and formation.In the position of the terminal predetermined length of the bare copper wire 68 that turns back of distance, at mutually opposite direction 90 degree bending bare copper wires 68.
Through repeating this action, form side quadrature a plurality of and the linearly body formation portion 69 of shape extension and the terminal formation portion 70 of stretching out.Mutually with being formed with 4 and 12 terminal formation portions 70 respectively on busbar 61 and the commons busbar 61x.Terminal formation portion 70 all is formed on the same side of body formation portion 69.Link formation portion 71 is through forming to the two ends of the opposition side 90 degree bending bare copper wires 68 of terminal formation portion 70 with respect to body formation portion 69.Terminal formation portion 70 forms at grade with link formation portion 71 and is parallel to each other.In addition, because commons busbar 61x does not have the end 67 of connection, go up formation link formation portion 71 so not be used in commons busbar 61x.
Next, shown in Fig. 6 c, from the direction of overbending direction quadrature to all being rolled of bare copper wire 68 that formed terminal formation portion 70 grades and form intermediate member 72.The band plate-like intermediate member 72 that all obtains launching shape through rolling bare copper wire 68.If form the intermediate member 72 of this shape, can produce a large amount of metal fillingss behind the stamping-out through the stamping-out metallic plate.Adopt this manufacturing approach then not produce metal fillings.Therefore, the volume production of intermediate member 72 can reach 100% rate of finished products.
Respectively rolling body formation portion 69 and link formation portion 71, the body 65 that forms the roughly the same band plate-like of width be connected end 67.In terminal formation portion 70, the bare copper wire 68 that extends in parallel opposed to each other from folded back position is rolled and is integrated, forms wide portion of terminal 66.
At length say, be rolled into the part (extension 61s) of a pair of band plate-like about equally such as body 65 width such as grade and stretch out to the side from body 65 with the state of mutual butt.These a pair of extension 61s link to each other with end portion (terminal part 61t) that the fold back portion through rolling bare copper wire 68 forms the U word shape respectively and are integrated.A pair of extension 61s and terminal part 61t also can be through based on rolling distortion and integrally formed.Constitute terminal extension 63 through said a pair of extension 61s here, and constitute the terminal ends 66c of portion through terminal part 61t.
At last, shown in Fig. 6 d,, accomplish busbar through the predetermined position of bending intermediate member 72.Specifically, the root of 90 each portion of terminal 66 of degree bending forms terminal base portion 66a.Further, the pars intermedia of 90 each portion of terminal 66 of degree bending assigns to form terminal pars intermedia 66b and the 66c of terminal ends portion.And, make body 65 crooked so that be connected end 67 (in commons busbar 61x for the end of body 65 each other) butt each other on the thickness direction accordingly with the shape of adapter 62, and shown in Fig. 6 e, be deformed into ring-type.
Each phase form different length respectively with the terminal formation portion 70 of busbar 61 mutually.Terminal base portion 66a with busbar 61 forms mutually the same length mutually.And the 66c of terminal ends portion with busbar 61 also forms mutually the same length mutually.Therefore, form predetermined different length respectively with the terminal pars intermedia 66b of busbar 61 mutually.And, each phase form different length respectively with the body formation portion 69 of busbar 61 mutually.Therefore, each phase forms different diameters respectively with the body 65 of busbar 61 mutually.
The length of the terminal formation portion 70 of the commons busbar 61x of this execution mode is than lacking with the length of the terminal formation portion 70 of busbar 61 mutually.The length of terminal base portion 66a and the 66c of terminal ends portion is identical in using busbar 61 and commons busbar 61x mutually, and the terminal pars intermedia 66b of commons busbar 61x is than lacking with the terminal pars intermedia 66b of busbar 61 mutually.Because the number of the portion of terminal 66 of commons busbar 61x is more than the number of the portion of terminal of using busbar 61 mutually 66, so can suppress the use amount of bare copper wire 68 through the size that reduces portion of terminal 66 relatively.
(adapter)
Like Fig. 3 and shown in Figure 5, adapter 62 is the concentric circles setting and has at inside and outside opposed inner peripheral surface 62a and links to each other and opposed a pair of outer face 62c and inner end 62d with outer peripheral face 62b and with each edge of these inner peripheral surfaces 62a and outer peripheral face 62b.Three positions of 62c have terminal hole 73 in the outer face of adapter 62.Each is outstanding through these terminal holes 73 with the connection end 67 of busbar 61 mutually.The inner end 62d of adapter 62 goes up and forms a plurality of (this execution mode is 4) body supports groove 74 and a plurality of (this execution mode is 24) terminal support groove 75.
Like Fig. 7 and shown in Figure 8, body supports groove 74 is circular grooves, and is concentric circles formation multilayer.The width of body supports groove 74 is bigger slightly than the thickness of the body 65 of busbar.In this execution mode, inboard at radial direction, be provided with the 1st to the 3 three the body supports groove 74u, 74v, the 74w that hold the body 65 of using busbar 61 mutually, outermost is provided with the 4th body supports groove 74x of the body 65x that holds commons busbar 61x.The degree of depth of the 1st to the 4th body supports groove 74 is all identical.
The 4th terminal support groove 75x is with equidistant formation 12 positions in a circumferential direction.The the 1st to the 3rd terminal support groove 75 for example is provided with according to the order of the 1st terminal support groove 75u, the 2nd terminal support groove 75v, the 3rd terminal support groove 75w between these the 4th terminal support grooves 75x widdershins one by one.The degree of depth of the 1st to the 4th terminal support groove 75 is all identical.
The length of the 1st to the 4th terminal support groove 75 has nothing in common with each other.Specifically, an end of the 1st to the 4th terminal support groove 75 is all in the outer peripheral face 62b of adapter 62 upper shed.And the other end of the 4th terminal support groove 75x is in the 4th body supports groove 74x upper shed, and likewise, the other end of the 1st to the 3rd terminal support groove 75 is respectively in 74 upper sheds of the 1st to the 3rd body supports groove.
A plurality of bodies 65 are accommodated in the body supports groove 74 respectively with a plurality of terminal base portion 66a that extend from body 65 and are nested shape setting.A plurality of terminal pars intermedia 66b have been taken in the terminal support groove 75 respectively.At this moment, because the 66c of terminal ends portion is positioned at and body 65 opposed sides, so be positioned at the opposed position of outer peripheral face 62b with adapter 62.
Shown in Fig. 8 a, the depth D 2 of terminal support groove 75 is bigger than the thickness t of portion of terminal 66.Therefore, because portion of terminal 66 gets in the adapter 62 and busbar 61 does not expose in the inner end 62d of adapter 62 side, so can prevent contacting of busbar 61 and miscellaneous part.
The depth D 1 of body supports groove 74 is darker than the depth D 2 of terminal support groove 75.And the difference of the depth D 1 of body supports groove 75 and the depth D 2 of terminal support groove 75 is bigger than the width W of body 65.Be accommodated in busbar 61 in the body supports groove 75 by the mechanics limit activities such as fixed claw that are arranged on the body supports groove 75.Therefore; Any of busbar 61 is accommodated in 62 last times of adapter; Because by terminal support groove 75 restriction, therefore also can stablizing, the portion of terminal 66 of body 65 of busbar 61 that strides across other prevents that portion of terminal 66 from contacting with the body 65 of other busbar 61.
The radial direction outside of the 66c of terminal ends portion of busbar 61 is provided with composition surface 76.When composition surface 76 is installed in 62 last times of adapter respectively, is positioned at central axis A inboard from radial direction and and is on the tangent position of the 1st imaginary circle 77 at center (with reference to Fig. 7) with adapter 62 (busbar unit 6).When busbar unit 6 being assembled in 5 last times of stator, conductor wire end 55 is bonded on these composition surfaces 76.
As shown in Figure 3, adapter 62 is arranged on the axial end of stator 5.That is to say, busbar unit 6 is arranged on 5 last times of stator, 5a installs towards the outlet side end of stator 5 to make the inner end 62d of adapter 62.Like this, can prevent that busbar from extracting from adapter 62.And, can prevent that also dust etc. from getting in the body supports groove 74.
As shown in Figure 9, conductor wire end 55 is arranged on the circumferencial direction of stator 5 with equidistant arrangement.In this execution mode, be provided with conductor wire end 55 at 24 positions, adjacent 2 conductor wire end, 55 formed central angles are 15 degree.In addition, the portion of terminal 66 of busbar unit 6 is corresponding to the number of conductor wire end 55 and position and be provided with.
It is on the tangent position of the 2nd imaginary circle 78 at center that conductor wire end 55 is arranged on from the radial direction outside and central axis A with stator 5.The 2nd imaginary circle 78 is set at identical with the diameter of the 1st imaginary circle 77.Thus; Make that separately central axis A is consistent and busbar unit 6 is installed on the stator 5; When locating conductor wire end 55 and portion of terminal 66 in a circumferential direction; Shown in figure 10, conductor wire end 55 is in following state: from more deriving near the position of radial outside than the portion of terminal 66 of coil, and joining with the composition surface 76 of portion of terminal 66 on more near the position of radial outside than portion of terminal 66.Conductor wire end 55 also can not joined with composition surface 76 but be mutually opposed across minim gap.
Shown in figure 11 because composition surface 76 extends in a circumferential direction, so even more or less offset or deflection of conductor wire end 55, conductor wire end 55 also be positioned at 76 opposed positions, composition surface on.Therefore, stably wire bonds end 55 and portion of terminal 66 are also realized automation easily.
That is to say, when making motor 1, can be with the series of processes mechanization that is assembled in busbar unit 6 on the stator 5.For example, at each busbar 61 of installing on the adapter 62 and after assembling busbar unit 6, on composition surface 76 and conductor wire end 55 opposed position, busbar unit 6 is arranged on (positioning process) on the stator 5 with predetermined apparatus for assembling (not shown).For example, with the alignment of each central axis A, along central axis A make busbar unit 6 near the outlet side end 5a of stator 5 till the precalculated position.Afterwards, busbar unit 6 is located in a circumferential direction with stator 5 relative rotations and with conductor wire end 55 and portion of terminal 66.Only all conductor wire end 55 are joined with portion of terminal 66 through above operation.
Next, shown in figure 12, by predetermined coupling device 101 each 66c of terminal ends portion of inside and outside sandwich and each conductor wire end 55, conductor wire end 55 is pressed on the composition surface 76 from radial direction.Then, get final product (joint operation) through welding lead ends 55 such as resistance welded, TIG welding, ultra-sonic welded and portion of terminal 66.Owing to can all conductor wire end 55 be focused on, therefore can reduce workload, and productivity ratio is high.
In this execution mode, be utilized in the gap 56 that forms between portion of terminal 66 and the adapter 62 and conductor wire end 55 and portion of terminal 66 engaged through ultra-sonic welded.
Specifically, coupling device 101 have the 1st pressure contact portion 101a and be positioned at than the 1st pressure contact portion 101a more near radial outside locational, with opposed the 2nd pressure contact portion 101b of the 1st pressure contact portion 101a.
Portion of terminal 66 is opposed with adapter 62 across gap 56 diametrically.The 1st pressure contact portion 101a is accommodated in the gap 56.And shown in the arrow of Figure 12, the conductor wire end 55 and the portion of terminal 66 of joining are crimped through the 1st pressure contact portion 101a and the 2nd pressure contact portion 101b diametrically, and through applying ultrasonic vibration conductor wire end 55 and portion of terminal 66 are engaged.
The concrete example of the junction of expression conductor wire end 55 and portion of terminal 66 in Figure 13.On the junction of conductor wire end of this execution mode 55 and portion of terminal 66, be formed with inclined-plane 55a.
Say that at length inclined-plane 55a forms along with towards the axial end side of conductor wire end 55 and make the radial thickness attenuation gradually of conductor wire end 55.Be ultrasonically welded within through inclined-plane 55a on the junction of conductor wire end 55, the end portion of conductor wire end 55 engages with portion of terminal 66 with being driven plain.Its result, wire bonds end 55 and portion of terminal 66 more securely.Because the bond strength of conductor wire end 55 and portion of terminal 66 is along with strengthening towards end side gradually, so can realize the stable engagement of vibration resistance etc.
(another execution mode)
In Figure 14, represent the motor of another execution mode.The structure of the busbar unit 6 of the motor 1A of this execution mode is different with the motor 1 of above-mentioned execution mode.Below, adopt same-sign to represent but omit its explanation for having structure with motor 1 identical functions of above-mentioned execution mode, only difference is elaborated.
The busbar unit 6A of this execution mode of expression in Figure 15.In this busbar 6A, have a plurality of (this execution mode is 4) busbar 81 and the insulating properties adapter 82 that supports these busbars 81.The busbar 81 of this execution mode also gone up mutually by the U phase that is connected to stator 5, V phase, W three constitutes with busbar 81u, 81v, 81w and a commons busbar 81x being connected on the neutral point mutually.
Shown in Figure 16 d, the body 65 of the busbar 81 of this execution mode is corresponding with the shape of adapter 82, is not at looped-shaped bending on the thickness direction but on Width.Portion of terminal 66 has terminal extension 83 and the 66c of terminal ends portion.Terminal extension 83 stretches out to the radial direction outside from the side of the outer circumferential side of body 65.That is to say, terminal extension 83 with the direction of body 65 quadratures on extend.The 66c of terminal ends portion links to each other with terminal extension 83, and on the direction that is orthogonal to terminal extension 83, extends.These busbars also form through processing a bare copper wire 68.
When making the busbar of this execution mode, shown in Figure 16 a, prepare a bare copper wire 68.Then, shown in Figure 16 b, bending bare copper wire 68, formation is as the body formation portion 69 of body 65, as the terminal formation portion 70 of portion of terminal 66 and as the link formation portion 71 that connects end 67.
Particularly, the same a plurality of terminal formation portion 70 that forms with before execution mode.Be formed with 4,12 terminal formation portions 70 with busbar 81 respectively with commons busbar 81x mutually.Make bare copper wire 68 in the form of a ring bending form body formation portion 69.Terminal formation portion 70 all is positioned at the radial direction outside of body formation portion 69.Link formation portion 71 is in that to be formed on the radial direction of body formation portion 69 inboard with terminal formation portion 70 opposite sides.
Next, shown in Figure 16 c, the bare copper wire 68 that is formed with terminal formation portion 70 grades all is rolled, thus the intermediate member 72 of formation band plate-like.Shown in Figure 16 d, the predetermined position of bending intermediate member 72.Specifically, the pars intermedia of 90 each portion of terminal 66 of degree bending assigns to form terminal extension 83 and the 66c of terminal ends portion.In this execution mode, the terminal extension 63 (a pair of extension 66s) in the execution mode before terminal extension 83 is equivalent to.
The length of the terminal formation portion 70 of each busbar 81 has nothing in common with each other.In this execution mode, each terminal extension 83 length is identical, and the 66c of the terminal ends portion length of each busbar is different respectively.And the length of the body formation portion 69 of each busbar in this execution mode is identical.Therefore, the diameter of the body 65 of each busbar 81 is identical.
The terminal formation portion 70 of the commons busbar 81x of this execution mode is longer with the terminal formation portion 70 of busbar 81 than mutually.Therefore, the 66c of terminal ends portion of commons busbar 81x is also long with the 66c of terminal ends portion of busbar 81 than mutually.The terminal formation portion 70 of commons busbar 81x is also comparable short with the terminal formation portion 70 of busbar 81 mutually.Thus because the number of the portion of terminal 66 of commons busbar 81x also the number than the portion of terminal of using busbar 61 mutually 66 is many, so can reduce the use amount of bare copper wire 68 through the size that reduces portion of terminal 66 relatively.
In this execution mode, busbar 81 is integrally formed with adapter 82.Specifically, the body 65 of busbar 81 is to be layered in the inside of adapter 82 across the contactless state of resin between adjacent busbar 81.The 66c of terminal ends portion of each busbar 81 is according to range upon range of position and length has nothing in common with each other.Thus, the overhang that stretches out of the outer face 62c from adapter 82 of each 66c of terminal ends portion is roughly the same.In addition, the overhang that stretches out of the outer peripheral face 62b from adapter 82 of each 66c of terminal ends portion is identical.Therefore composition surface 76 and the 1st imaginary circle 77 are tangent.
In addition, busbar involved in the present invention is not limited to above execution mode, also comprises other various structures.
For example, in the motor of above-mentioned execution mode, the major part of stator 5 is embedded in the resin bed 54 through molded, but this execution mode is shown in figure 17, also applicable to the motor that does not have resin bed 54.
And, can suitably change the part form of the portion of terminal 66 of busbar 61 as required.The busbar 91 of expression variation in Figure 18 c.The portion of terminal 92 of busbar 91 constitutes and can crimping conductor wire end 55 carry out ways of connecting.That is to say the pair of terminal wrist 92b that this portion of terminal 92 has the terminal base portion 92a that links to each other with body 65 and stretch out to the side and stretches out from two side direction sides of the end portion of terminal base portion 92a respectively.Through between these terminal wrists 92b, drawing conductor wire end 55 in and rolling up terminal wrist 92b is carried out crimping, portion of terminal 92 is connected with conductor wire end 55.
In portion of terminal 92, for example shown in Figure 18 a, be T word shape bending bare copper wire 68 and form terminal formation portion 70.After the rolling like this processing, form the intermediate of the expansion shape of portion of terminal 92 shown in Figure 18 b.After this, the predetermined position that bends this intermediate gets final product.
It also can be that triangle connects that the connection of each coil is not limited to the connection of Y shape.And, also be applicable in each connection in series-parallel further parallelly connected that be connected in series of going up series coil mutually to be connected with being connected on each one group of coil going up mutually.
The material of busbar (wire rod) is not limited to copper cash, and also other have the metal of electrical conductivity.For example, aluminum steel is lighter and price is low than copper cash, so also be well suited for.Particularly, identical owing to physical property when using the identical wire rod of conductor wire with coil, can improve bond quality.
The body shape of adapter and busbar is not limited to circular.Also can be circular shape and polygon or unsetting etc.
Busbar of the present invention and motor can be used as the vehicle mounted motor, for example are suitable for the electric power-assisted steering apparatus of vehicle.
Claims (13)
1. motor, said motor comprises:
Axle, it is to rotate freely around rotation by bearings;
Rotor, it is arranged on the said axle;
Stator, it has the coil that forms through the coiling conductor wire, and be arranged on said rotor around;
The adapter of insulating properties, it is arranged on the axial end of said stator; And
Busbar, it is supported by said adapter,
It is characterized in that,
Said busbar comprises a plurality of portion of terminal with the composition surface of extending vertically,
Said portion of terminal is opposed across gap and said adapter diametrically,
On an axial end of said stator, more derive near the position of radial outside from the said portion of terminal of ratio of said coil the end of a plurality of said conductor wires that extend vertically,
The end of said conductor wire is joining with the composition surface of said portion of terminal on more near the position of radial outside than said portion of terminal, and the end of said conductor wire is bonded on the composition surface of said portion of terminal through ultra-sonic welded.
2. motor as claimed in claim 1 is characterized in that,
On the junction of the end of said conductor wire, be formed with axial distolateral and make the radial thickness inclined-plane of attenuation gradually of conductor wire along with towards conductor wire.
3. motor as claimed in claim 1 is characterized in that,
Said busbar has a plurality of;
Said portion of terminal is wholely set on tabular body,
Said portion of terminal has from said body to side terminal extension that stretches out and the terminal ends portion that links to each other with said terminal extension;
The shape of said body and said adapter is crooked to thickness direction accordingly,
Said terminal extension comprise with the terminal base portion of said body quadrature and with the terminal pars intermedia of said terminal base portion quadrature,
Said terminal ends portion comprises the part with said terminal pars intermedia quadrature,
Be nested with the body that is provided with said a plurality of busbars at said adapter.
4. motor as claimed in claim 3 is characterized in that,
On a side end face of said adapter, be provided with a plurality of body supports grooves that hold said a plurality of bodies respectively and a plurality of terminal support grooves that hold said a plurality of terminal pars intermedias respectively,
Said body supports groove is formed with multilayer around said axle,
Said terminal support groove intersects with said body supports groove,
The degree of depth of the said terminal support groove of the depth ratio of said body supports groove is dark, and both differences are bigger than the width of said body.
5. motor as claimed in claim 3 is characterized in that,
Said coil is embedded in the resin,
The end of said conductor wire exports to the outside of said resin.
6. motor as claimed in claim 4 is characterized in that,
Said terminal ends portion is positioned at and the opposed side of said body,
Said adapter is installed on the said stator under the state of an axial end of said stator at said end face.
7. motor as claimed in claim 1 is characterized in that,
Said busbar has a plurality of,
Said portion of terminal is wholely set on tabular body,
The shape of said body and said adapter is crooked to Width accordingly,
Said terminal extension comprises the part with said body quadrature,
Said terminal ends portion comprises the part with said terminal extension quadrature,
Said a plurality of body is being layered in the said adapter under the discontiguous state each other.
8. like claim 3 or 7 described motors, it is characterized in that,
Said stator is cylindric,
Arrange in a circumferential direction the end of said conductor wire,
Said adapter and said body are circular or circular-arc,
The end position of said portion of terminal and said conductor wire is provided with accordingly.
9. motor as claimed in claim 8 is characterized in that,
The end of said conductor wire be separately positioned on the tangent position of the 1st imaginary circle on,
Said composition surface be separately positioned on the tangent position of the 2nd imaginary circle on,
Said busbar and said adapter are being installed under the state on the said stator, and said the 1st imaginary circle is set at consistent with said the 2nd imaginary circle.
10. motor as claimed in claim 1 is characterized in that,
Extend in a circumferential direction in said composition surface.
11. motor as claimed in claim 3 is characterized in that,
Said portion of terminal has the terminal extension, and this terminal extension is made up of a pair of extension that under the state of mutual butt, stretches out to the side from said body.
12. motor as claimed in claim 3 is characterized in that,
Said motor has the connection end, and said link portion extends from the two ends of said body respectively and clips the opposition side that body is arranged on said portion of terminal.
13. motor as claimed in claim 3 is characterized in that,
The bearing of trend of said terminal ends portion is the direction that the axial other end from said stator extends to an axial end.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-243513 | 2010-10-29 | ||
| JP2010243513 | 2010-10-29 | ||
| JP2011-079455 | 2011-03-31 | ||
| JP2011079455A JP5842361B2 (en) | 2010-10-29 | 2011-03-31 | Motor and motor manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353351U true CN202353351U (en) | 2012-07-25 |
Family
ID=46495170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204203204U Expired - Lifetime CN202353351U (en) | 2010-10-29 | 2011-10-28 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5842361B2 (en) |
| CN (1) | CN202353351U (en) |
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2011
- 2011-03-31 JP JP2011079455A patent/JP5842361B2/en not_active Expired - Fee Related
- 2011-10-28 CN CN2011204203204U patent/CN202353351U/en not_active Expired - Lifetime
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2012110204A (en) | 2012-06-07 |
| JP5842361B2 (en) | 2016-01-13 |
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Granted publication date: 20120725 |