CN1103738A - Small electric motor with terminal unit and method for connecting terminal unit - Google Patents
Small electric motor with terminal unit and method for connecting terminal unit Download PDFInfo
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- CN1103738A CN1103738A CN94115792A CN94115792A CN1103738A CN 1103738 A CN1103738 A CN 1103738A CN 94115792 A CN94115792 A CN 94115792A CN 94115792 A CN94115792 A CN 94115792A CN 1103738 A CN1103738 A CN 1103738A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
To allow quite easy and accurate connection of a terminal block while enhancing the heat resistance of motor by eliminating the soldering work to the stator winding. The motor is apllicable for dupilicating machine. The miniature motor comprises a stator where a stator winding 36 is wound around a bobbin, a rotor disposed in the stator, and a terminal block 52 for connecting the stator winding 36 electrically with a feeder line 53, wherein the terminal block 52 comprises a terminal member 60 made of a conductor which is connected by electric resistance welding with the stator winding and soldered to the feeder line 53.
Description
The present invention relates to miniature motors such as stepping motor, particularly its arrangements of terminal and attaching method thereof.
Rotary miniature motor is widely used in all fields such as precision machinery, video tape recorder audio-visual equipment such as (VTR) and automobile electrical gas equipment such as vest-pocket camera.And the stepping motor of one of miniature motor is widely used for the drive source as various electronic equipments such as photocopiers.
Stepping motor has the stator of stator coil on the bobbin, be located at the rotor of this stator inboard and the arrangements of terminal that stator coil and supply lines are electrically connected.
The bobbin with arrangements of terminal in the past protrudes block portion and to be configured as one on bobbin, and fixes a plurality of lead terminals in block portion.On the bobbin around stator coil coiling hook on lead terminal, with scolding tin the stator coil coiling is electrically connected with lead terminal.
Like this, conventional art will be welded stator coil and each lead terminal with manual operations, and attended operation is very loaded down with trivial details and be difficult to connect process automation.And, if adjacent bump is narrow at interval, then might with adjacent bump short circuit, so require superb scolding tin process technology, also might produce the substandard products that short circuit causes.
Prevent this situation at interval if strengthen bump, then can make arrangements of terminal become big, (need motor casing is opened big breach for big like this arrangements of terminal is installed.In case it is big that the notch part of shell becomes, then can hinder the magnetic structure of motor, unfavorable to magnetic circuit.And, easily produce strain on the shell, also might reduce the circularity of shell.
Also have, the line of stator coil when coating the polyester line of the high insulation coating of heat resisting temperature, may because of the flatiron shortage of heat to destroy the insulation coating, between polyester line and lead terminal, produce poor flow.
Be anti-poor flow here, in the past by before welding processing with the insulation coating of chemical modes such as the solvent dissolving connecting portion film of making a return journey, but the cost that adds of this removal insulation coating is the operation of adding, the obstacle when becoming the process automation of arrangements of terminal link library.
Though also supply lines can be directly welded in lead terminal, because the connecting portion weakened, and be difficult to welding processing, so generally connect lead terminal and supply lines by printed substrate.Do like this,, also exist the part number to increase, connect the problem that process number also increases though improved connecting portion intensity.
The caloric value of the motor of stepping motor own is big especially in the miniature motor, so the heat resisting temperature of stator coil is the heat resisting temperature of allowing of stepping motor.Therefore, if can use the high stator coil of heat resisting temperature, also can improve motor and allow heat resisting temperature.Yet owing to there is the problem of above-mentioned poor flow or the processing of removal insulation coating, the thermal endurance of stepping motor is limited naturally.
Also have, can produce pernicious gas, stink etc. during welding processing, must operational environment be taken the necessary measures, and might be because of scolding tin during welding, welding paste splashes and reduces the qualification rate of product.
The objective of the invention is and to address these problems, provide a kind of and can exempt the operation of welding with stator coil, the extremely easy connection of correctly carrying out arrangements of terminal again, and have the miniature motor that can make the heat-resisting arrangements of terminal that increases substantially of motor and the method for attachment of this arrangements of terminal.
For achieving the above object, the miniature motor of the present invention with arrangements of terminal comprises the stator that is wound with stator coil on the drum stand; Be disposed at the rotor of this stator inboard; With the arrangements of terminal that said stator coil and supply lines are electrically connected, this arrangements of terminal has the terminal component that is formed by conductor and be connected with the said stator coil by the resistance welded member.
Above-mentioned resistance welded member has: forms with insulator, and the brace table at the support belt winding coil skeleton back side and the block portion back side; Support the electrode supporting portion of the opposed termination electrode of hook portion of above-mentioned relatively each terminal component respectively; Can freely connect be electrically connected with above-mentioned hook portion any position in addition of above-mentioned terminal component discretely and with the opposite polarity other end electrode of an above-mentioned termination electrode, an above-mentioned termination electrode relies on above-mentioned electrode supporting portion, advances and retreat relative to above-mentioned hook portion and moves.
Also have, above-mentioned terminal component preferably is connected with supply lines with welded units such as for example flatirons, perhaps is close in solid member and the above-mentioned resistance welded member one or both and is connected with above-mentioned supply lines.
A kind of form of above-mentioned terminal component is to have: the support portion that is plugged in the combined hole of the above-mentioned drum stand that is wound with the said stator coil; Make J word shape hook said stator coil-winding, simultaneously by above-mentioned resistance welded member generation deformation, and hook portion fastening with the said stator coil, conducting; Seize the above-mentioned supply lines and the supply lines holding part of conducting with it on both sides by the arms.The best integraty of this terminal component is bent to form.
Above-mentioned drum stand is a coil rack, slightly rectangular block portion evagination on this coil rack outer peripheral face is made of one with being shaped, the part of this block portion and the recess of stator core are chimeric, carry out the circumferential location of above-mentioned coil rack and said stator iron core, form a plurality of combined holes that the end is arranged on the end face of above-mentioned block portion, a plurality of above-mentioned terminal components are plugged in above-mentioned each combined hole respectively to be pressed into mode.
The another kind of form of above-mentioned terminal component is to have: the support portion that is plugged in the combined hole of the above-mentioned drum stand that is wound with the said stator coil; Make J word shape hook said stator coil-winding, simultaneously by above-mentioned resistance welded member generation deformation, and hook portion fastening with the said stator coil, conducting; Make above-mentioned supply lines locate also the supply lines location division of conducting with it with becoming J word shape.The best integraty of this terminal component is bent to form.
The method of attachment of arrangements of terminal of the present invention is a stator coils wound on the stator winding frame, in this stator inboard rotor is set, and on the miniature motor that said stator coil and supply lines is electrically connected with arrangements of terminal in the method for attachment of set arrangements of terminal, terminal component with conductor formation arrangements of terminal is connected to this terminal component by electric resistance welding with the said stator coil.
Though can above-mentioned supply lines be connected to above-mentioned terminal component with soldering, one or both in the most handy fastening and above-mentioned electric resistance welding are connected.
Way is not remove under the insulating bag membrane stage of above-mentioned supply lines preferably, its end is plugged in the inboard of above-mentioned supply lines location division, allow the other end electrode of above-mentioned electric resistance welding contact with the contact of above-mentioned supply lines location division, big electric current flows into above-mentioned terminal component, remove above-mentioned insulation coating, above-mentioned supply lines location division is directly contacted with above-mentioned supply lines heart yearn.
Above-mentioned a plurality of terminal component also can pass through sheet material of bending ram in advance, each hook portion of integrally formed above-mentioned terminal component, and carve at the root bottom part of above-mentioned each terminal component and to establish the joint-cutting line, to make with above-mentioned each terminal component of above-mentioned sheet material all-in-one-piece be plugged in respectively in the combined hole temporary transient fixing after, fracture not the wanting part of above-mentioned sheet material at above-mentioned joint-cutting line place and do not go it, make above-mentioned each terminal component be pressed into above-mentioned combined hole everywhere simultaneously.
Among the present invention, flow through a large amount of electric currents by instantaneous on the terminal component of the coiling of hook stator coil, terminal component generates heat because of the resistance effect, and the contact site of stator coil and terminal component also generates heat because of its contact resistance simultaneously.At this moment, melt after the fixed subcoil insulating coating in the contact site also is upgraded to high temperature, thereby can remove fully, stator coil with the direct contact condition of terminal component under fastening and conducting.
Therefore, if utilize the present invention, can save soldering processing with stator coil.If utilize another form of the present invention, can also save soldering processing with supply lines.So, can the extremely easy connection of correctly carrying out arrangements of terminal again, can also increase substantially the thermal endurance of motor.
Fig. 1 is the outside drawing of the stepping motor of expression the present invention the 1st embodiment;
Fig. 2 is the profile of Fig. 1 stepping motor;
Fig. 3 is the oblique view of stator core shown in Figure 2;
Fig. 4 is the assembling exploded perspective view of the arrangements of terminal of presentation graphs 1 stepping motor;
Fig. 5 is the front view that expression has the drum stand of arrangements of terminal;
Fig. 6 is that VI-VI of Fig. 5 is to profile;
Fig. 7 is the front cross-sectional view of expression with the method for resistance welded member assembling arrangements of terminal;
Fig. 8 is the plane graph of Fig. 7;
Fig. 9 is the oblique view of the arrangements of terminal behind the electric resistance welding;
Figure 10 represents the 2nd embodiment of the present invention, is the oblique view of the arrangements of terminal before the electric resistance welding;
Figure 11 is the oblique view of the arrangements of terminal behind the electric resistance welding;
Figure 12 is the outside drawing of the stepping motor of expression the present invention the 3rd embodiment;
Figure 13 is the profile of Figure 12 motor;
Figure 14 is the assembling exploded perspective view of the arrangements of terminal of expression Figure 12 motor;
Figure 15 is the oblique view of arrangements of terminal;
Figure 16 is the front view that expression has the drum stand of arrangements of terminal;
Figure 17 is that X VII-X VII of Figure 16 is to profile;
Figure 18 is the elevation cross-sectional view of expression with the method for resistance welded member assembling arrangements of terminal;
Figure 19 is the vertical view of Figure 18;
Figure 20 represents the present invention the 4th embodiment, is the oblique view of the arrangements of terminal behind the electric resistance welding;
Figure 21 represents the present invention the 5th embodiment, is the oblique view of the arrangements of terminal behind the electric resistance welding;
Figure 22 represents the present invention the 6th embodiment, is the oblique view of the arrangements of terminal behind the electric resistance welding;
Figure 23 represents the present invention the 7th embodiment, is the oblique view of the arrangements of terminal behind the electric resistance welding;
Figure 24 represents the present invention the 8th embodiment, is the oblique view of the arrangements of terminal part before the expression electric resistance welding;
Figure 25 is the oblique view of the arrangements of terminal part behind the expression electric resistance welding;
Figure 26 is the oblique view of the drum stand that has arrangements of terminal in the past;
Figure 27 is the oblique view that expression Figure 26 drum stand connects the state behind the power supply coil.
For ease of understanding the present invention, according to Figure 26, Figure 27 conventional art is described earlier.
As shown in figure 26, block section 2 is gone out to be configured as one in the coil rack epirelief, be pressed into fixing many (3) lead terminals 3 in the block section 2. The coiling hook of the stator coil 4 on the coil rack 1 is electrically connected stator coil 4 and lead terminal 3 with scolding tin 5 on lead terminal 3.
As shown in figure 27, with soldering lead terminal 3 is fixed in printed substrate 6, the end soldering of supply lines 7 in printed substrate 6, is electrically connected lead terminal 3 and supply lines 7 with the Copper Foil section 8 that is located at printed substrate 6. Therefore, supply with electric current by supply lines 7 to stator coil 4 by external power source.
Allow 10 two combinations of belt coil coil rack that are provided with structure arrangements of terminal 9 like this, consist of the stator of stepping motor.
In in the past arrangements of terminal 9 as described above, respectively with manual soldering stator coil 4 and each lead terminal 3, lead terminal 3 and printed substrate 6 and printed circuit 6 and supply lines 7, so it is very loaded down with trivial details to connect processing, and the automation that connects processing is also difficult. Also have, when adjacent bump interval is narrow might with adjacent bump short circuit, soldering processing requires much skill, and also might produce the substandard products that short circuit causes.
Prevent these situations if strengthen adjacent bump interval, then arrangements of terminal 9 becomes big, for this arrangements of terminal 9 is installed, must open big breach to motor casing. Shell notch part one becomes big, will hinder the motor magnetic circuit structure, causes the unfavorable of magnetic path connection. In addition, easily produce strain on the shell, and might reduce the circularity of shell.
Also have, the line of stator coil 4 is that the shortage of heat of possible flatiron to destroy the insulation coating poor flow between polyester line 4 and the lead terminal 3 takes place when being covered with the polyester line of high (for example more than 130 ℃) insulation coating of heat resisting temperature.
For preventing this poor flow, be in the past before soldering processing with the insulation coating of the chemical modes such as the solvent dissolving connecting portion film of making a return journey, but the cost that adds of this removal insulation coating is the operation of adding, the obstacle when becoming arrangements of terminal 9 connection process automation.
Although also can without printed substrate 6, supply lines 7 be directly welded in lead terminal 3, but because the connecting portion weakened, and be difficult to welding processing, so generally as mentioned above by printed substrate 6 connecting lead wire terminals 3 and supply lines 7. Do like this, though improved the intensity of connecting portion, also exist number of components to increase, connect the problem that process number also increases.
Below, be example explanation miniature motor one embodiment of the present invention for employed stepping motors of electronic equipment drive source such as photocopier, printing machine, facsimile machine and typewriters.
(the 1st embodiment)
With Fig. 1 to Fig. 9 the present invention the 1st embodiment is described.
Illustrated stepping motor 20 is that the PM type (Permanent Magnet Type: make the rotor that the electromagnetic attracting force that produces with stator coil is made of permanent magnet and make it rotation by miniature motor permanent-magnet type), structure.
As shown in Figures 1 and 2, stator 22 is installed in the inside of shell 21, and the rotor 23 that is loaded on stator 22 inboards also is located at the inside of shell 21.Be fixed in the rotating shaft 24 of rotor 23 centers vertically, support and to rotate freely by the bearing components 25,26 of being located at shell 21.
The formed circular mounting recess 30 inner fixed bearing members 26 of central part of lid member 29, the formed installing hole 32 inner fixed bearing members 25 of central part of the side 31 of cover 27.Bearing components the 25, the 26th is by the resin with lubrification or the powder sintered metal of immersion lubrication oil or the no oil type bearing that powder sintered alloy forms.
The stator core 38 usefulness kicker magnet metal materials of support coils skeleton 35 form.As shown in Figure 3, stator core 38 has ring-type plectane portion 39, and the inner periphery 40 of justifying board 39 by oneself is to a plurality of broach shape magnetic poles 41 outstanding with a direction of central axes and that evenly be provided with along inner periphery 40.Form recess 43 on the peripheral part of plectane portion 39.
As shown in Figure 2, be fixed in stator core 38, constitute the 1st block 33 by band winding coil skeleton 42 with stator coils wound 36 on the coil rack 35.With the 1st block 33 in abutting connection with and back-to-back fixing the 2nd assembly 34 also have the structure identical with the 1st block 33.
Form open notch part 51 on the outer peripheral face 50 of cover 27, arrangements of terminal 52 is set on shortcoming oral area 51 towards peristome 28 sides.Arrangements of terminal 52 be used for stator coil 36 be connected not shown external power source and provide the supply lines 53 of electric current to be electrically connected to stator coil 36.
Arrangements of terminal 52 outwards protrudes from covering outer peripheral face 50 by notch part 51.On lid member 29, be bent to form cap 54 with being integral.Cap 54 covers the opening portion 55 of notch part 51.Like this, the area that as far as possible reduces the opening portion 55 of notch part 51 can prevent the obstacle to magnetic structure, can prevent that foreign matter such as dirt bits from 55 invading to the inside of motor 20 from the opening portion simultaneously.Cover on the member 29 because of cap 54 is placed again, make stepping motor 20 can make up decomposition.
On the 1st block 33, form the 1st magnetic circuit, the magnetic line of force that the magnetizing coil 37 of this magnetic circuit conducting the 1st block 33 produces by cover 27, the plectane portion 39 and the broach shape magnetic pole of stator core 38.On the other hand, on the 2nd block 34, forms the 2nd magnetic circuit, the magnetic line of force of magnetizing coil 37 generations of this magnetic circuit conducting the 2nd block 34 by the broach shape magnetic pole 41 and the plectane portion 39 of cover 27, lid member 29, stator core 38.
Place the rotor 23 of stator core 38 radial direction inboards to have the formed cylindrical rotor magnet 56 of permanent magnet, this permanent magnet is made and is along the circumferential direction arranged the magnetic pole that a plurality of courts are parallel to the extension of rotation centerline direction.
Have in the stepping motor 20 of said structure, when allowing the mutually inclined to one side electric current of phase place flow into stator coil 36 as each magnetizing coil 37 of the 1st, the 2nd block 33,34 by supply lines 53 and arrangements of terminal 52, then each magnetizing coil 37 is alternately excitatory, alternately produces magnetic force in the 1st, the 2nd magnetic circuit.
So, respectively by the position of the broach shape magnetic pole 41 of each excitatory stator core 38 of each magnetizing coil 37 also be offset fixed step angle.Like this, attract rotor magnets 56 by excitatory broach shape magnetic pole 41, make rotor 23 carry out decide rotatablely moving of stepping angle.Therefore, the rotating shaft 24 by rotation can drive electronic equipments such as photocopier.
The structure of the arrangements of terminal 52 of stepping motor 20 then, is described referring to Fig. 4 to Fig. 9.
Arrangements of terminal 52 has the terminal component 60 that is formed by conductors such as beryllium-bronze sheet materials.Terminal component 60 is by resistance welded member 61(Fig. 7 and Fig. 8) be connected with stator coil 36.By using for example flatiron 57(Fig. 9) etc. the soldering member can also connect supply lines 53.
Method of attachment as the arrangements of terminal 52 of the stepping motor 20 of miniature motor of the present invention is the method for attachment of the set arrangements of terminal of miniature motor, being about to stator coil 36 is wound on the coil rack 35 as the drum stand of stator 22, in the inboard of stator 22 rotor 23 is set, stator coil 36 and supply lines 53 is electrically connected by arrangements of terminal.This method, the terminal component 60 with conductor formation arrangements of terminal 52 is connected to terminal component 60 with electric resistance welding with stator coil 36.With soldering supply lines 53 is connected to terminal component 60 again.
The the 1st, the 2nd block 33,34 structures that are provided with arrangements of terminal 52 are identical, therefore one of them are described.
As shown in Figure 4, on the outer peripheral face 62 of coil rack 35, outwards protrusion forms slightly rectangular block portion 63 and is made of one.By the part of block portion 63 and recess 43(Fig. 3 of stator core 38) chimeric, the circumferential location of carrying out coil rack 35 and stator core 38.Form the combined hole 65 that a plurality of (for example 3) have the end on the end face 64 of block portion 63, a plurality of (for example 3) terminal component 60 is slotting fixed by being pressed into each combined hole 65 respectively.
3 combined holes 65 are formed at the position of deflection block end surface 64 1 edge part 64a sides.Therefore, be plugged in 3 terminal components 60 of each combined hole 65, as shown in Figure 5, place from the position of the center of coil rack 35 G to the right-hand skew of figure.
Allow a pair of coil rack 35 of arrangements of terminal 52 with structure like this back-to-back assemble, then as shown in Figure 1,6 terminal components 60 alternately are arranged in zigzag.Therefore, terminals of adjacent member 60 is not hindered and connect supply lines 53.
Though also can allow each terminal component 60 be loaded on combined hole 65 one by one, but for the assembling working (machining) efficiency is provided, as shown in Figure 4, by in advance with crooked after beryllium-bronze sheet material 66 punching presses, integrally formed hook portion 67, and preferably carved joint-cutting line 68 earlier at the root bottom part of each terminal component 60.
Then, will be plugged in respectively in each combined hole 65 with each terminal component 60 of copper coin material 66 all-in-one-pieces respectively, each terminal component 60 is fixed in block portion 63 temporarily.Then, if shown in arrow B, the not part 69 of crooked copper coin material 66, then part 69 is not removed because of fractureing at joint-cutting line 68 places.And if making each terminal component 60 be in 3 places with anchor clamps is pressed into combined hole 65 simultaneously, whole terminal components 60 of then quickly packing into shorten and assemble process time.
The outstanding respectively anticreep projection tab 72 that forms of 70 both sides of the edge portions in the support portion, support portion 70 1 is pressed in the combined hole 65, than metal terminal member 60 more soft synthetic resin coil rack 35 will be out of shape, make projection tab 72 hooks on the inwall of combined hole 65, terminal component 60 will firmly be fixed in the block portion 63.
Supply lines holding part 71 is made two strands of shapes, has the formed U font peristome 73 in the hook portion of bending to 67 backs.Insert peristome 73 and then carry out soldering if will remove the heart yearn of end 75 of the supply lines 53 of insulation coating 74, supply lines 53 and supply lines holding part 71 are electrically connected with flatiron 57 grades.
As shown in Figures 7 and 8, resistance welded member 61 has: form by insulator, and the brace table 77 of the back side 76a of the back side 76 of support drum stand 42 and block portion 63; Support respectively electrode supporting portion 79 with the hook portion 67 opposed termination electrodes (for example positive electrode) 78 of each terminal component 60; Can be free arbitrary place beyond the hook portion 67 of contact separation ground and terminal component 60, for example the supply lines holding part 71, be electrically connected, and with electrode 78 be the other end electrode 80 of antipole (for example negative pole).Owing to can consume gradually in the use, preferably regularly change electrode 78.
To shown in Figure 7, when stator coil 36 is connected with terminal component 60, on the coil rack 35 of sky, in the stator coils wound 36, allow each line end of stator coil 36 on the hook portion 67 of the terminal component 60 of institute's allocation, come hook as Fig. 5 around several circles.At this moment, the insulation coating that needn't wind the line with removal stator coils 36 such as solvents in advance.
And, by allowing the back side 76, the 76a of drum stand 42 overlap brace table 77, carry out the location of drum stand 42.Make electrode 80 trolley wire holding part 71 in advance at contact D on the other hand.
Then, drive electrode support portion 79 makes 3 electrodes 78 simultaneously towards right-hand the moving of Fig. 7 and Fig. 8 and the contact E of contact hook portion 67, and then pressing hook portion 67, presses flat whole hook portion 67, makes it to be deformed into tabular (referring to Fig. 9).
At this moment, the moment of electrode 78 contact contact E makes conducting in 78,80 short time of electrode, and big electric current flows into terminal component 60.So electric current flows through contact E, hook portion 67, support portion 70 and electric wire holding part 71 successively, flow into other end electrode 80 from contact D moment.
Electric conducting materials such as terminal component 60 usefulness beryllium-bronzes constitute, and because of transient flow is crossed a large amount of electric currents, high heat takes place as resistance terminal component 60.On the other hand, stator coil 36 is wound on the hook portion 67, the heatings that cause as resistance owing to hook portion 67 itself, and the heating that causes of the contact site contact resistance between stator coil 36 and the hook portion 67, and the stator coil 36 at contact site place also becomes high temperature.
Like this, the insulation coating of stator coil 36 reaches the above high temperature of melt temperature, and the fusing back is removed fully, makes stator coil 36 and hook portion 67 directly contact fixing and reliable conducting.
Though do not make hook portion 67 distortion, stator coil 36 also with hook portion 67 conductings, if utilize electrode 78 pressing hook portions 67, then as shown in Figure 9, can seize stator coil 36 more firmly on both sides by the arms, the increase bonding strength by the hook portion 67 of distortion.
Now lift resistance welded condition one example of frequency when being 50Hz, be described as follows.
(1) voltage: about 2～4V.
(2) frequency: 50Hz.
(3) tilt angle theta of electrode 78 front end 78a: about 2 °～10 °.
(4) the pressing power of 78 pairs of hook portions 67 of electrode: about 63.7N(newton).
(5) weld time: about 5～8 cycles.
(6) electric current: about 1,200A～1,500A.
(7) electric current flushing time: about 0.08～0.13 second.
After so stator coil 36 being connected to terminal component 60, peel off the insulation coating 74 of supply lines 53 portion of terminal 75, expose heart yearn 81.Then allow heart yearn 81 by peristome 73, Live wires holding part 71 is seized on both sides by the arms under the state of heart yearn 81 and is carried out soldering with flatiron.So, as shown in Figure 9, with scolding tin 82 fixedly supply lines holding part 71 and heart yearn 81.Supply lines holding part 71 is two strands of shapes, so its advantage is an energy stable support heart yearn, improves the soldering operability and can improve hot strength.
(1) polyurethane line
Be around the enamelled wire that has polyurethane resin coating, can not peel off the directly soldering of insulation coating ground.
Heat resisting temperature: 120 ℃.
(2) polyester line
Be the enamelled wire that sintering has the sex change Polyester resin lacquer, can not peel off the insulation coating with the solder horn temperature usually, need peel off with solvent etc.
Heat resisting temperature: 130 ℃
(3) H kind electric wire
Be the enamelled wire that sintering has imido resin, acyl ammonia cold coating, can not peel off the insulation coating fully, need peel off with solvent etc. with the solder horn temperature.
Heat resisting temperature: 180 ℃
In the past, when making stator coil 36, can directly carry out soldering processing, and under the situation with above-mentioned polyester line, H kind electric wire, the processing of then must be in advance peeling off the coating that insulate with solvent etc. with above-mentioned polyurethane line.
To this, the present invention, substitute soldering with electric resistance welding, stator coil 36 is connected to terminal component 60, therefore, even polyester line, H kind electric wire, as long as welding conditions such as the electric weight of adjusting electric resistance welding, conduction time, its insulation coating is reached more than the melt temperature, just can peel off the insulation coating of Da Gaowen easily, make stator coil 36 directly contact hook portion 67 and conducting.
Like this, when stator coil 36 connects, saved soldering processing, with the processing that solvent etc. is removed the insulation coating, can the extremely easy connection of correctly carrying out arrangements of terminal 52 again.
Because save the soldering processing of stator coil 36, the short circuit that the coupling part soldering causes can not take place again, can prevent that the substandard products that cause because of soldering from taking place yet.
(the 2nd embodiment)
Figure 10 and Figure 11 represent the present invention the 2nd embodiment.
As shown in the figure, the terminal component 60a of present embodiment arrangements of terminal 52a has two gangs of shape supply lines holding part 71a that middle body is formed with peristome 73a, and the other parts structure of terminal component 60a is identical with the above-mentioned terminal component 60 of the 1st embodiment.And it is also identical with the 1st embodiment with flatiron 57 supply lines holding part 71a and heart yearn 81 to be carried out soldering.
Supply lines holding part 71a makes: the inner surface 90 of peristome 73a side is the wide conical surface of downside (back of the body entrance side) narrow entrance side in the drawings, when the heart yearn 81 of supply lines 53 is plugged in peristome 73a deeply, makes inner surface 90 and heart yearn 81 crimping.
Because of inner surface 90, the conical surface 91 of upside among its figure (entrance side) for upwards broadening is so heart yearn 81 can be plugged in the peristome 73a smoothly again.In addition, if form the inner surface 90 and the conical surface 91 with curved surface, then heart yearn 81 plug-in mountings are smooth, more satisfactory.
The 63a of block portion of bobbin 35 forms a pair of recess 93 in the side 92 that hook portion 67 is write out a prescription.Each recess 93 places hook portion 67 both sides, and is longer than the length L of hook portion 67 apart from the length H of block end surface 64.
Electrode 78(Fig. 7, Fig. 8 with electric resistance welding connection member 61) with pressing hook portion 67 energetically, when making it to be deformed into as shown in Figure 11, side 92 is also become hook portion 67 back sides of high temperature and is pressed flat.Because recess 93 is formed at the both sides of hook portion 67, the resin bed 94 that the quilt of side 92 is pressed flat part moves in the both sides recess 93.Therefore, can prevent to press flat resin bed 94 swells on 92 surfaces, side.
(the 3rd embodiment)
Figure 12 to Figure 19 represents the present invention the 3rd embodiment.
As shown in Figure 12 and Figure 13, stepping motor 120 is the PM type motor identical with the 1st embodiment, and the structure beyond the arrangements of terminal 152 is identical with the motor 20 of the 1st embodiment, therefore omits explanation identical components part.
Below, the structure of arrangements of terminal 152 is described referring to Figure 14 to Figure 19.
Arrangements of terminal 152 has the terminal component 160 that is formed by conductors such as beryllium-bronze sheet materials.Terminal component 160 is by resistance welded member 161(Figure 18, Figure 19) connect stator coil 36 and supply lines 53 respectively.
Method of attachment as the arrangements of terminal 152 of the stepping motor 120 of miniature motor of the present invention, it is stator coils wound 36 on as the coil rack 35 of stator winding frame, in stator 22 inboards rotor 23 is set, and the method for attachment of set arrangements of terminal on the motor of stator coil 36 and supply lines 53 being done to be electrically connected with arrangements of terminal.This method forms the terminal component 160 of arrangements of terminal 152 with conductor, with resistance welded stator coil 36 is connected to terminal component 160, with in the fastening and above-mentioned resistance welded one or both supply lines 53 is connected with terminal component 160 again.
This 3rd embodiment is with fastening and electric resistance welding dual mode splicing ear member 160 and supply lines 53.
The the 1st, the 2nd block 33,34 that is provided with arrangements of terminal 152 is same structure, therefore describes with regard to a block.
As shown in figure 14, form the combined hole 165 that a plurality of (for example 3) have the end on the end face 64 of block portion 63, a plurality of (for example 3) terminal component 160 is inserted calmly by being pressed into each combined hole respectively.
3 combined holes 165 are arranged setting along the length direction of seat end surface 64, and are formed on the position of the secundly edge 64a of portion side.Therefore, as shown in figure 16, be plugged in 3 terminal components 160 of each combined hole 165, place off-line ring framework 35 center G to scheme right position partially.
Though each terminal component 160 can respectively be loaded on a combined hole 165, but in order to improve the assembling working (machining) efficiency, preferably, make 3 terminal components, 160 continuous states form one down, and carved the joint-cutting line earlier at the root bottom part of each terminal component 160 in advance with crooked after the punching out of a beryllium-bronze sheet material.
Like this, will be that each terminal component 160 of one is plugged in respectively in each combined hole 165 with the copper coin material, and after making each terminal component 160 temporarily be fixed in hook portion 63, the not part of crooked again copper coin material, then this part fractures at joint-cutting line place and removes.And if be pressed into each terminal component 160 simultaneously at 3 places with anchor clamps, the block portion 63 of then can quickly 3 terminal components all being packed into can shorten and assemble process time.
The hook portion 167 of hook stator coil 36 coilings is made by resistance welded member 161(Figure 18, Figure 19) deformation takes place, and be fixedly installed in stator coil 36 and conducting with it.
Supply lines location division 171 forms by the lug that bending connects the bottom 166 of hook portion 167, and as shown in figure 16, hook portion 167 is positioned at laterally (left of Figure 16) relatively.
170 both sides of the edge portion protrudes respectively and forms anticreep projection tab 172 in the support portion, in case support portion 170 is pressed in the combined hole 165, then than more just distortion of soft synthetic resin coil rack 35 of metal terminal member 160, projection tab 172 hooks are at the inwall of combined hole 165, and terminal component 160 firmly is fixed in a portion 63.
When a pair of coil rack 35 back-to-back combinations of the arrangements of terminal 152 that will have structure like this, then as shown in figure 12,6 terminal components 160 alternately are arranged in zigzag, terminals of adjacent member 160 is not hindered connect supply lines 53.
As Figure 18 and shown in Figure 19, resistance welded member 161 has: the brace table 177 that is formed and supported the back side 76a of the back side 76 of drum stand 42 and block portion 63 by insulator; Support the electrode supporting portion 79 of hook portion 167 opposed termination electrodes (for example positive electrode) 78 of respectively relative each terminal component 160; Can freely connect discretely being electrically connected with supply lines location division 171, is the other end electrode 80 of polarity opposite (for example negative pole) with electrode 78.
When stator coil 36 is connected with terminal component 160 respectively with supply lines 53, extremely shown in Figure 180 as Figure 16, when stator coil 36 was wound in ceases to be busy ring framework 35, each line end that makes stator coil 36 was made hook around several the circle after the hook portion 167 of the terminal component 160 of institute's allocation.At this moment, needn't be in advance remove the insulation coating of stator coil 36 with solvent etc.
Allow the back side 76 of drum stand 42 and the back side 76a and the brace table 177 of block portion 63 overlap again, make drum stand 42 location.On the other hand, allow electrode 80 contact with the end face 169 of supply lines location division 171 in advance at contact D.
Then, as shown in figure 14, allow the heart yearn 81 of removing the end 75 of insulation coating 74 on the supply lines 53 in advance be plugged in the inboard of J word shape supply lines location division 171.Preferably, thereafter with the securing member pressing location division end face 169 of fastening usefulness instrument 183 grades of the shape that formalizes, by supply lines location division 171 fastening heart yearns 81.
Because supply lines location division 171 makes J word shape, the plug-in mounting handling ease of heart yearn 81, and almost the positioning in week entirely of the heart yearn 81 that supply lines location division 171 can also be close to during fastening heart yearn 81.
Then, as Figure 18 and shown in Figure 19, drive electrode support portion 79 is moved on the right-hand of Chao Getu 3 electrodes 78 simultaneously, contacts with the contact E of hook portion 167, and then pressing hook portion 167, whole hook portion 167 is pressed flat, makes it to be deformed into tabular (referring to Figure 15).
At this moment, the moment of electrode 78 contact contact E makes conducting in 78,80 short time of electrode, and big electric current flows into terminal component 160.So, the free electrode 78 of electric current contact E, hook portion 167, bottom 166 and the supply lines location division 171 of flowing through successively of setting out, and flow into electrode 80 by contact D moment of its end face 169.
Therefore, the insulation coating of stator coil 36 reaches the above high temperature of melt temperature and after melting, is removed fully, and it is fixing that stator coil 36 and hook portion 167 are directly contacted, reliable conducting.
Though do not allow hook portion 167 distortion, stator coil 36 also with hook portion 167 conductings, if with electrode 78 pressing hook portions 167, then as shown in figure 15, by the hook portion 167 of distortion stator coil 36 is located more firmly, the increase bonding strength.
Identical therewith, the heart yearn 81 of supply lines 53 is anchored on the inboard of supply lines location division 171, because supply lines location division 171 itself becomes the heating that the contact resistance of heating that resistance causes and the contact site between heart yearn 81 and the supply lines location division 171 causes, contact site local melting.Thus, heart yearn 81 is fixed on the supply lines location division 171, reliable conducting.
As for being connected of the heart yearn 81 of terminal component 160 and supply lines 53, though can be only with fastening or only use resistance welded, if as this example with fastening and resistance welded dual mode connection, then can increase the intensity of contact site, so the mode of the most handy example.
Without resistance welded, when list carries out the connection of supply lines 53 with fastening means, can use contact D1(Figure 15) substitute contact D, make other end electrode 80 contact bottom 166 in advance.Do like this, flow through successively behind electrode 78, contact E, hook portion 167, the bottom 166, flow to electrode 80, so, can carry out resistance welded with best welding condition to the connection of stator coil 36 from contact D1 because of electric current.
In addition, the condition of resistance welded is identical with the 1st embodiment.
(the 4th embodiment)
As shown in figure 20, the terminal component 160a of the arrangements of terminal 152a of the 4th embodiment, the lateral length of its bottom 166a is than bottom 166(Figure 14, Figure 15 of the 3rd embodiment) do shortly, and allowing supply lines 53 by location, supply lines location division 171 near hook portion 167 sides, the other parts structure is identical with the 3rd embodiment.
Do the miniaturization that can realize terminal component 160a like this, and can strengthen the space between each terminal component 160a, supply lines 53 becomes easy to the plug-in mounting of terminal component 160a, fastening processing.And can dwindle spacing between each terminal component 160a, make arrangements of terminal 152a miniaturization.
(the 5th embodiment)
As shown in figure 21, among the terminal component 160b of the arrangements of terminal 152b of the 5th embodiment, make the supply lines location division 171b of supply lines 53 location by the 1st location division 184 of the fastening location of outer peripheral face of the coating 74 that will insulate, constitute with hook portion 167 equidirectional the 2nd location divisions 185 that are arranged side by side and make heart yearn 81 to locate and be attached thereto.
1st, the 2nd location division 184,185 is integrally formed by the part of curved bottom 166b.The structure of other parts is identical with the 3rd embodiment.
Owing to so constitute, can improve bonding strength with 184,185 pairs one supply lines two point locations in the 1st, the 2nd location division.Again because of supply lines 53 is being contained on the terminal component 160b under the case of bending, so even supply lines 53 is subjected to also difficult drop-off of external force tractive.In addition, allow other end electrode position contacting, both can be the 2nd location division 185 and contact D, also can be the contact D1 of bottom 166b.
(the 6th embodiment)
As shown in figure 22, among the terminal component 160c of the arrangements of terminal 152c of the 6th embodiment, the 1st location division 184c of supply lines location division 171c fastening location by the periphery of the coating 74 that will insulate of supply lines 53 location, the 2nd location division 185c that heart yearn 81 is located and is attached thereto are constituted, and the latter places the middle section of the hook portion 167c that extends to figure below (towards coil 37).
1st, the 2nd location division 184c, 185c are integrally formed by the part of curved bottom 166c.So constitute, can make two point locations under the state of crooked supply lines 53, its action effect is identical with the 5th embodiment.Again because the 2nd location division 185c and hook portion 167c adjacency, so allow the preferably contact D on the 2nd location division 185c of other end electrode 80 position contacting.
Also because the terminal component 160c of present embodiment makes longitudinal, can strengthen the space between adjacent each terminal component 160c, the plug-in mounting of 53 couples of terminal component 160c of supply lines, processing such as fastening become easy.
(the 7th embodiment)
As shown in figure 23, though the arrangements of terminal 152d of the 7th embodiment also can be with arbitrary terminal component among above-mentioned the 3rd to the 6th embodiment, shown in this example is the terminal component 160 that adopts the 3rd embodiment.In the present embodiment, under the state of the insulation coating 74 of not removing supply lines 53, its end 175 is plugged in the inboard of supply lines location division 171.
Allow a termination electrode 78(Figure 18, Figure 19 again) the contact E of contact hook portion 167, allow the contact D of other end electrode 80 contact supply lines location divisions 171, and terminal component 160 flows into the electric current bigger than the various embodiments described above.
So the insulation coating of stator coil 36 and the insulation coating 74 of supply lines 53 reach the above high temperature of melt temperature, are removed fully after the fusing.Therefore, stator coil 36 directly contacts fixing and reliable conducting with hook portion 167.On the other hand, because the insulation coating 74 of supply lines 53 is thicker, produce plurality of gaps exposing between heart yearn 81 and the supply lines location division 171 sometimes.In this case as long as with fastening usefulness instrument 183(Figure 14) etc. fastening supply lines location division 171, supply lines location division 171 will directly contact and conducting with heart yearn 81.
Like this, just can save the processing of removing insulation coating 74, further simplify attended operation.
(the 8th embodiment)
This 8th embodiment represents that identical with the 2nd embodiment in fact structure also can be suitable for the 3rd to the 7th embodiment.
As Figure 24 and shown in Figure 25, among the arrangements of terminal 152e, the 163e of block portion of coil rack 35 forms a pair of recess 93 on hook portion 167 residing sides 92.Each recess 93 is positioned at the both sides of hook portion 167, and bigger than the length L of hook portion 167 apart from the length H of block end surface 64.
Like this, the present invention can the extremely easy connection of correctly carrying out arrangements of terminal again owing to saved soldering processing when stator coil 36 and supply lines 53 be connected to terminal component 160,160a～160c, utilize the processing of removal of solvents insulation coating.
Again because can be that 130 ℃ polyester line, the H kind electric wire that heat resisting temperature is 180 ℃ etc. are used for stator coil 36, so the heat resisting temperature of motor can be brought up to 130 ℃ to 180 ℃ or higher with heat resisting temperature.
Owing to saved in the past parts such as bulky printed circuit board (PCB), the part number reduces, and can make the arrangements of terminal miniaturization.Again because stator coil 36 can be connected to simultaneously on a plurality of (present embodiment is 3) terminal component, can shorten significantly and connect process time, also realize connecting the automation of processing easily.
Owing to saved the soldering processing of stator coil 36 and supply lines 53, can not produce the short circuit that the coupling part soldering causes again,, make the arrangements of terminal miniaturization, can also prevent that soldering from being the substandard products generation of cause so can dwindle the spacing between terminal.
Also have, pernicious gas and stink that soldering processing produces can not take place, can improve operational environment.There is not splashing of scolding tin in the soldering processing, scolding tin slurry again, can improve the qualification rate of product.
Variable reluctance type), HB type (Hybrid Type: stepping motor such as mixed type) though the various embodiments described above have illustrated the stepping motor of PM shape, the present invention also can be applicable to VR type (Variable Reluctance Type:.
The present invention can also be applied to other the rotary miniature motor beyond the stepping motor.
In addition, same label is represented identical or suitable part among each figure.
Claims (29)
1, a kind of miniature motor with arrangements of terminal, the arrangements of terminal that is included in the stator (22) that is wound with stator coil (36) on the drum stand (35), the rotor (23) that is disposed at this stator inboard, said stator coil and supply lines (53) are electrically connected (52,52a, 152,152a～152e), it is characterized in that this arrangements of terminal have the terminal component that forms by conductor and be connected with the said stator coil by resistance welded member (61,161) (60,60a, 160,160a～160c).
2, motor according to claim 1, it is characterized in that above-mentioned resistance welded member (61,161) have: form and the brace table (77 at the back side (76a) of the back side (76) of support belt winding coil skeleton (42) and block portion (63) with insulator, 177), support respectively hook portion (67 with above-mentioned each terminal component, 67c, 167,167c) the electrode supporting portion (79) of an opposed termination electrode (78), can freely connect be electrically connected with above-mentioned hook portion arbitrary place in addition of above-mentioned terminal component discretely, and with the opposite polarity other end electrode of an above-mentioned termination electrode (78) (80); An above-mentioned termination electrode (78) relies on above-mentioned electrode supporting portion (79), moves relative to above-mentioned hook portion advance and retreat.
3, motor according to claim 2 is characterized in that the either party in the contact (D1) of the contact (D) of supply lines location division (71,71a, 171) of above-mentioned other end electrode (80) and above-mentioned terminal component and bottom (166,166a, 166b) is connected.
4,, it is characterized in that the angle of inclination (θ) of the front end (78a) of an above-mentioned termination electrode (78) is about 2 °～10 ° according to claim 2 or 3 described motor.
5, motor according to claim 1, the both sides of the edge portion that it is characterized in that above-mentioned terminal component support portion (70,170) gives prominence to the projection tab (72,172) that the formation anticreep is used respectively, in above-mentioned support portion is pressed into combined hole (65,165), then, make above-mentioned projection tab hook on the inwall of above-mentioned combined hole than the above-mentioned drum stand distortion of metal above-mentioned terminal component soft synthetic resin system.
6,, it is characterized in that above-mentioned terminal component made by the beryllium-bronze panel according to claim 1,2,3 or 5 described motor.
7,, it is characterized in that said stator coiling constitutes a kind of among the group for polyurethane line, polyester line and H kind electric wire according to claim 1,2,3 or 5 described motor.
8, motor according to claim 1 is characterized in that above-mentioned terminal component is connected with above-mentioned supply lines with the soldering member.
9, motor according to claim 8, it is characterized in that above-mentioned soldering member is flatiron (57), use the heart yearn (81) of above-mentioned flatiron with two bursts of shape supply lines holding part of the fixing above-mentioned terminal component of scolding tin (82) (60,60a) (71,71a) and above-mentioned supply lines.
10, according to claim 1,8 or 9 described motor, it is characterized in that above-mentioned terminal component (60,60a) has: be plugged in the combined hole of the above-mentioned drum stand that is wound with the said stator coil support portion (70), make the coiling of J word shape hook said stator, simultaneously by above-mentioned resistance welded member generation deformation, and the hook portion (67) of, conducting fastening, seize above-mentioned supply lines and the supply lines holding part of conducting (71,71a) with it on both sides by the arms with the said stator coil; Above-mentioned terminal component integraty is bent to form.
11, motor according to claim 10 is characterized in that the above-mentioned supply lines holding part (71,71a) of above-mentioned terminal component is two strands of shapes, and central authorities have U font peristome (73,73a), and the heart yearn of above-mentioned supply lines (81) inserts above-mentioned peristome.
12, motor according to claim 11, it is characterized in that above-mentioned supply lines holding part (71a), the inner surface (90) of its above-mentioned peristome (73a) side is made the back of the body arrival end narrow conical surface, when above-mentioned heart yearn inserts in above-mentioned peristome deeply and above-mentioned inner surface crimping.
13, motor according to claim 12 is characterized in that above-mentioned peristome side inner surface (90), the conical surface (91) of its arrival end for further widening.
14, according to claim 1,2,3,5,8 or 9 described motor, it is characterized in that above-mentioned drum stand is coil rack (35), on the outer peripheral face of this coil rack (62), slightly rectangular block portion (63,63a, 163e) the outwards outstanding one that is configured as, the recess (43) of the part of this one and stator core (38) is chimeric, carry out the circumferential location of above-mentioned coil rack (35) and said stator iron core (38), be formed with a plurality of combined holes (65 that the end is arranged on the end face (64) of above-mentioned block portion, 165), a plurality of above-mentioned terminal components are plugged in above-mentioned each combined hole respectively by being pressed into.
15, motor according to claim 14, it is characterized in that above-mentioned block portion (63a, 163e) upward forms a pair of recess (93) in above-mentioned terminal component hook portion side of living in (92), this two recess (93) lays respectively at above-mentioned hook portion both sides, and the length (H) of the above-mentioned block end surface of distance (64) is longer than the length (L) of above-mentioned hook portion.
16, motor according to claim 14, it is characterized in that above-mentioned a plurality of combined hole is formed on the position of an edge part (64a) side of being partial to above-mentioned block end surface (64), thereby, when a pair of above-mentioned coil rack is installed back-to-back, then all above-mentioned terminal component engrails are alternately arranged, and make adjacent above-mentioned terminal component not hinder above-mentioned supply lines to be connected with above-mentioned terminal component.
17,, it is characterized in that above-mentioned terminal component relies on any or two kinds of clamp structure (183) and above-mentioned resistance welded member to be connected with above-mentioned supply lines according to claim 1,2,3 or 5 described motor.
18, motor according to claim 17, it is characterized in that: above-mentioned terminal component have the combined hole (165) that is plugged in the above-mentioned drum stand that is wound with the said stator coil support portion (170), make J word shape hook said stator coil, simultaneously by above-mentioned resistance welded member generation deformation, and the hook portion of, conducting fastening with the said stator coil (167,167c), become J word shape and make above-mentioned supply lines location and the supply lines location division of conducting (171,171b, 171c) with it; Above-mentioned terminal component integraty is bent to form.
19, motor according to claim 18 it is characterized in that above-mentioned supply lines location division by will connecting crooked formation of lug of the bottom of stating hook portion (166,166a, 166b, 166c), and above-mentioned relatively hook portion is positioned at laterally.
20, motor according to claim 19 is characterized in that in the above-mentioned terminal component (160a), and the lateral length of above-mentioned bottom (166a) is short, and allows by the above-mentioned supply lines of location, above-mentioned supply lines location division (171) near above-mentioned hook portion (167) side.
21, motor according to claim 18, it is characterized in that above-mentioned supply lines location division (171b, 171c) is by the 1st location division of the outer peripheral face of the insulation coating (74) of above-mentioned supply lines is fastening, location (184,184c) and the 2nd location division that the heart yearn (81) of above-mentioned supply lines locatees and be attached thereto (185,185c) is constituted, above-mentioned the 1st, the 2nd location division is by with a part of bending of bottom (166b, 166c) and integraty forms.
22, motor according to claim 21 is characterized in that above-mentioned the 2nd location division (185), with above-mentioned hook portion (167) equidirectional be arranged side by side.
23, motor according to claim 21, it is characterized in that above-mentioned terminal component (160c) forms longitudinal, the middle section of the above-mentioned hook portion (167c) of extending towards coil (37) direction of above-mentioned drum stand (35) is located in above-mentioned the 2nd location division (185c), and with above-mentioned hook portion adjacency.
24, motor according to claim 21, the other end electrode (80) that it is characterized in that above-mentioned resistance welded member (161) contacts with contact (D) on above-mentioned the 2nd location division (185,185c) and the either party in the contact (D1) on above-mentioned bottom (166b, 166c).
25, a kind of method of attachment of arrangements of terminal of miniature motor, be to go up stator coils wound (36) at the drum stand (35) of stator (22), at the inboard of this stator configuration rotor (23), and make the method for attachment of set arrangements of terminal on the miniature motor that said stator coil and supply lines (53) be electrically connected with arrangements of terminal, it is characterized in that with conductor form arrangements of terminal (52, the terminal component of 52a, 152,152a～152e) (60,60a, 160,160a～160c), and utilize electric resistance welding that the said stator coil is connected to this terminal component.
26, method according to claim 25 is characterized in that with soldering above-mentioned supply lines being connected to above-mentioned terminal component.
27, method according to claim 25 is characterized in that with arbitrary mode in the fastening and above-mentioned resistance welded or dual mode above-mentioned supply lines being connected to above-mentioned terminal component.
28, method according to claim 27, it is characterized in that under the state of the insulation coating (74) of not removing above-mentioned supply lines, its end (175) are plugged in the inboard of the supply lines location division of above-mentioned terminal component, allow the contact (D) of the above-mentioned supply lines of other end electrode (80) contact location division of resistance welded member, big electric current is fed above-mentioned terminal component and removes above-mentioned insulation coating, above-mentioned supply lines location division is directly contacted with above-mentioned supply lines heart yearn.
29, according to claim 25,26,27 or 28 described methods, it is characterized in that for above-mentioned a plurality of terminal components, by in advance with a sheet material punching out bending, each hook portion of integrally formed above-mentioned terminal component, and carved the joint-cutting line earlier at the root bottom part of above-mentioned each terminal component, after will being plugged in interior temporary transient the fixing of combined hole (65,165) respectively with incorporate above-mentioned each terminal component of above-mentioned sheet material again, fracture at joint-cutting line place and remove the not part of above-mentioned sheet material, in simultaneously above-mentioned each terminal component being pressed into above-mentioned combined hole everywhere.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP344123/93 | 1993-12-17 | ||
| JP344124/93 | 1993-12-17 | ||
| JP5344124A JPH07177694A (en) | 1993-12-17 | 1993-12-17 | Miniature motor and connection method of terminal block therefor |
| JP5344123A JPH07177693A (en) | 1993-12-17 | 1993-12-17 | Miniature motor and connection method of terminal block therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1103738A true CN1103738A (en) | 1995-06-14 |
| CN1034376C CN1034376C (en) | 1997-03-26 |
Family
ID=26577699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94115792A Expired - Fee Related CN1034376C (en) | 1993-12-17 | 1994-08-22 | Small electric motor with terminal unit and method for connecting terminal unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034376C (en) |
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| CN103219127A (en) * | 2013-04-25 | 2013-07-24 | 艾通电磁技术（昆山）有限公司 | Alternating current-direct current conversion electromagnet coil connecting structure |
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| CN104253510B (en) * | 2013-06-25 | 2019-10-15 | 罗伯特·博世有限公司 | Motor, especially motor |
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