CN1122528A - Molded motor - Google Patents
Molded motor Download PDFInfo
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- CN1122528A CN1122528A CN94117742A CN94117742A CN1122528A CN 1122528 A CN1122528 A CN 1122528A CN 94117742 A CN94117742 A CN 94117742A CN 94117742 A CN94117742 A CN 94117742A CN 1122528 A CN1122528 A CN 1122528A
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Abstract
In the prodn of the moulded electric motor, when arc iron cores are butt-welded to form stator core, they are combined via pritned circuit board, and this can eliminate soldering operation, reduce prodn time and improve electromagnetic characteristics of stator core. Several half-ring electromagnetic steel sheets are laminated into half-ring iron cores, which are butt-soldered into stator core. Half-ring insulators are mounted onto iron cores and on one side of insulators there are several pins, which are inserted into holes on printed circuit board to combine iron cores into annular one.
Description
The present invention relates to be used for the molded motor of driving of the Air Blast fan etc. of domestic air conditioner.
So far, the motor that the Air Blast fan of domestic air conditioner etc. uses is owing to must control air output, the direct current machine that many employings speed is adjusted easily multistagely.
Direct current machine is that loop construction is simple with induction machine ratio, its advantage, but its reverse side is that to flow through the electric current of coil discontinuous, so electric and magnetic oscillation takes place.Therefore, in order to alleviate electric and magnetic oscillation, the most employing utilizes thermosetting resin to be cured as the structure (below, abbreviate molded motor as) of one stator core and coil.
The structure of this molded motor is opened flat 5-308738 communique institutes such as (HO2K3/46) by the spy and is delivered.Figure 19 is the longitudinal section of this molded motor that has earlier.
That is, the loop coil 103 of yoke coiling unshakable in one's determination is enclosed within the stator core 101 by insulator 102.On the other hand, assembling drive circuit and be installed on the maintenance pin 102A of insulator 102 with the slightly ringwise printed circuit board (PCB) 112 of part, the installation site of this printed circuit board (PCB) is in and the discontiguous device of above-mentioned coil that is overlapping the said stator iron core 101 of coil 103.
Here, stator core 101 is (the opening flat 4-331434 communique referring to the spy) that after the iron core butt joint of a pair of semi-circular (arc) that will be laminated by the electromagnetic steel sheet of multi-disc semi-ring (arc) respectively the docking section welding formed.
Overlapping the stator core 101 of coil 103, by installing to the casing 104 interior stators that form that form one with the curable synthetic resin that electrical insulating property is arranged.
In addition; on printed circuit board (PCB) 112, assembling and be used to power or a plurality of lead-in wires 115 of detection speed and Hall unit (or hall integrated circuit) 108 etc.; these lead-in wires 115 utilize plastic liner fixed thereon 116 protection to make it avoid the heat that produces when above-mentioned resin forms and the effect of pressure, also can be in order to improve the tight contact with resin.
These pads 116 are normally by a pair of spacer block 118 that overlaps, 119 constitute, and on each coincidence face of these spacer blocks, form a plurality of and above-mentioned a plurality of lead-in wire 115 groove 118b corresponding, deep equality, cross section semicircular in shape, 119b will be so these a plurality of grooves will go between and 115 clamp.In addition, the 105th, rotor, the 106th, rotating shaft, 107,111st, the bearing of the above-mentioned rotating shaft of supporting.
In addition, the magnet 109 of ring-type relatively is installed on the end ring of rotor 105 with the Hall unit 108 of above-mentioned printed circuit board (PCB) 112.
Above-mentioned printed circuit board (PCB) 112 has a plurality of connecting portions at its periphery, and the lead-in wire solderless wrapped connection of coil 103 is on these connecting portions.In order easily these to be gone between solderless wrapped connections on these connecting portions, what have forms the bigger shape (opening flat 5-308738 communique referring to the spy) of width with its front end.
But, according to said structure, owing to being forms its butted part welding after the iron core butt joint of a pair of semi-circular (arcuation) that will be laminated by the electromagnetic steel sheet of multi-disc semi-circular (arcuation) respectively, so, need carry out weld job, like this, not only will increase the number of working processes, and because the heat in when welding will make the electromagnetic property of stator core degenerate.
The present invention signs in the problems referred to above and proposes, its purpose is to provide a kind of molded motor, when the butt joint unshakable in one's determination of a plurality of arcuations is formed stator core, abolish weld job by utilizing printed circuit board (PCB) that each iron core is combined, thereby not only can reduce the number of working processes when making, can also improve the electromagnetic property of stator core simultaneously.
In addition, another object of the present invention is that a kind of molded motor will be provided, and can prevent that when the pin that utilizes insulator keeps printed circuit board (PCB) the coiling amount of coil from reducing.
Molded motor of the present invention, be to utilize the synthetic resin with electrical insulating property will the reel stator of stator coil and device is molded into one at the ring-type printed circuit board (PCB) of end winding one side motor, stator is to utilize the insulating element that is formed by synthetic resin topped after butt joint forms a plurality of arcuation iron cores of ring-type, stator coil is wound on these iron cores, simultaneously, appointed positions is chimeric on the printed circuit by the pin that will be projected into end winding one side and form one with insulating element from each insulating element and ring-type decides position unshakable in one's determination, thereby the stator core of formation ring-type.
Molded motor of the present invention is to make the diameter of pin of each butted part unshakable in one's determination one side of above-mentioned molded motor greater than the diameter of other pins.
Molded motor of the present invention, stator is made of a plurality of tooth portions and yoke, and makes the pin diameter that is positioned at tooth portion front end one side big, makes the diameter of the pin that is positioned at yoke one side little.
Molded motor of the present invention, utilize synthetic resin simultaneously molded in order to fix plastic liner to the lead-in wire of stator coil power supply, and, this liner is made of a pair of spacer block that overlaps, and what form on each coincidence face of these spacer blocks is different with the degree of depth in another spacer block in order to the circular groove of clamping lead-in wire.
Molded motor of the present invention forms through hole on the coincidence face of a spacer block that constitutes liner, form with this through hole chimeric projection littler than the degree of depth of through hole on the coincidence face of another spacer block.
Molded motor of the present invention has the rotor that the ringshaped magnet that position probing uses is installed on end ring, magnet is ferrite to be mixed with thermoplasticity synthetic resin and plastic magnet with temperature characterisitic identical with end ring constitutes.
Molded motor of the present invention, be that edge at printed circuit board (PCB) has a plurality of connecting portions, these connecting portions part of projection and stator coil or end laterally are provided with the wiring graph similar to this connecting portion shape around thereon on the surface of each connecting portion.
Molded motor of the present invention is that the docking section that printed circuit board (PCB) keeps pin usefulness is set on the position of the distribution loop graph shape when the two poles of the earth avoiding on the printed circuit board (PCB) forming on this substrate and four utmost points.
Molded motor of the present invention by the assigned address of the pin of insulating material and printed circuit board (PCB) is chimeric, can be stipulated the device of a plurality of arcuation iron cores.Thereby form the stator core of ring-type, so, can abolish unshakable in one's determination in conjunction with the time weld job, reduce the number of working processes when making, thereby can improve the electromagnetic property of stator core.
In addition, except above-mentioned situation, because the diameter of pin that makes each butted part one side unshakable in one's determination is greater than the diameter of other pins, so, near to the big butted part of bond strength influence, can improve each adhesion unshakable in one's determination.
Make the pin diameter that is positioned at stator core tooth portion front end one side big on the basis of the above, make the pin diameter that is positioned at yoke one side little, so, the confining force of printed circuit board (PCB) both can have been kept.Can successfully carry out the winding work of coil again.
The circular groove that on each coincidence face of spacer block, forms on the basis of the above in order to clamping lead-in wire, the degree of depth is different with another spacer block, so, can lead-in wire simply and the position remains in the groove of the deep spacer block of the gash depth of formation exactly.Therefore, utilize this simple structure, just can improve the assembly working efficient of liner significantly.
On the basis of the above with two spacer blocks overlapping in conjunction with the time make the part of through hole still remain the cavity not embed projection, in order to be cured in the hollow sectors of carrying out making synthetic resin flow into through hole when molded.So, just can improve the adhesion of two spacer blocks and the adhesion of synthetic resin and liner by means of the synthetic resin that flows into hollow sectors, so, even molded motor uses the back that vibration takes place or with changing service time, lead-in wire also can not deviate from from liner or liner splits away off from stator, thereby can obtain durability and the splendid molded motor of reliability.
Be plastic magnet as position probing with the ring-shaped magnet material on the end ring that is installed in rotor of (or the rotation detection is used) on the basis of the above, because the thermal coefficient of expansion of these plastics is approximate with the thermal coefficient of expansion of aluminium that constitutes end ring or zinc, so expansion and contraction that can be the same with end ring, thermal deformation can not take place in magnet, can prevent that magnet from damaging, thereby the durability and the splendid molded motor of reliability of rotor can be provided.
Because the shape of the wiring graph that is provided with on the surface of the outwards outstanding a plurality of connecting portions that form at the edge of printed circuit board (PCB) is similar to the shape of connecting portion, so, when stator coil is wound on connecting portion, at least at the place, two edges of connecting portion stator coil is closely contacted reliably with wiring graph, even middle body stator coil come-up at connecting portion, also can guarantee stator coil and wiring graph are continued reliably, prevent loose contact, thereby can obtain the high molded motor of reliability.
Because the position of the distribution loop graph shape when avoiding bipolar and four utmost points on printed circuit board (PCB) is provided with the junction surface that printed circuit board (PCB) keeps pin to use, so, the wiring graph the when wiring graph when no matter printed circuit board (PCB) is the two poles of the earth or four utmost points, can admit and keep pin, maintain printed circuit board (PCB) and can not contact with two kinds of wiring graphs, utilizing synthetic resin to carry out when molded, can stably keep printed circuit board (PCB), thereby heat that produces can prevent to solidify effectively the time and pressure cause printed circuit board (PCB) distortion or position deviation etc.As a result, can realize the generalization of printed circuit board (PCB) and metal die, thereby can reduce production costs.
Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is the longitudinal section of the molded motor of the embodiment of the invention.
Fig. 2 is the sectional elevation of 4 pole molded motor
Fig. 3 is the sectional elevation of the two poles of the earth molded motor
Fig. 4 is the plane graph of stator core
Fig. 5 is the expansion plane graph of liner
Fig. 6 is the expansion cutaway view of liner
Fig. 7 is the decomposition front elevation of liner
Fig. 8 is the front elevation of rotor
Fig. 9 is the plane graph of stator before the mold pressing
Figure 10 is the longitudinal section of stator
Figure 11 is the reverse side figure of stator
Figure 12 is the front elevation of stator
Figure 13 is the longitudinal section of metal die in the manufacturing process of molded motor
Figure 14 is the end view that is contained in the insulator in the stator core
Figure 15 is the plane graph that is contained in the insulator in the stator core
Figure 16 is the end view of insulating trip
Figure 17 is the front view of insulating trip
Figure 18 is the plane graph of the printed circuit board (PCB) of 4 pole molded motor
Figure 19 is the sectional arrangement drawing of the molded motor that has earlier.
Fig. 1 is the longitudinal section of molded motor of the present invention.This molded motor as shown in Figure 1, have stator A, rotor B and rotating shaft C, at the 1b of tooth portion across iron core 1, yoke 1c between 2b, the last helically wound coil 3 of 2c (stator coil) is contained in the stator core 1 by insulator 2, carry out mold pressing by fill the premix that constitutes by electrical insulating property synthetic resin such as unsaturated polyester resins from the outside, form framework 4.
Here, stator core 1 as shown in Figure 4, can be the electromagnetic steel sheet of a plurality of semi-circular (arcuations) is stacked and utilize the 1a unshakable in one's determination of semi-circular (arcuation) that projection 5 clamps in conjunction with riveted joint, on the 2a, be provided as the insulator (as described later semi-circular (arcuation)) and the coil 3 of insulating element respectively, and utilize above-mentioned synthetic resin to carry out mold pressing after docking mutually with this state to form annular (ring-type) and obtain.
In addition, in Fig. 1, be provided with the bearing holder (housing, cover) 6 that forms one with framework 4 at the axial end of framework 4.Be provided with steel disc at the axial other end of framework 4 and carry out the carriage 9 that deep-draw processes, this carriage 9 utilizes screw 10 to be fixed on the framework 4, utilizes to be embedded in inner bearing 11 and the above-mentioned rotor B of bearing 7 supportings.
On rotor B, assembling the plastic magnet 8 of annular in the position relative with Hall unit (or hall integrated circuit) H of the described printed circuit board (PCB) 12 in back.In addition, as described later assembling drive circuit such as Hall unit H with the summary of part ringwise the printed circuit board (PCB) 12 of (ring-type) be installed on the insulator 2 of the stator A that constitutes by stator core 1, insulator (insulating element) 2 and coil 3, the position that this printed circuit board (PCB) 12 is installed is coil terminal one side of stator A, be not can with coil 3 position contacting.And the stator core 1 that coil 3 is installed forms stator A by the curable synthetic resin formation one that utilization has electrical insulating property, and at this moment, printed circuit board (PCB) 12 also is embedded in the resin.
In addition, on printed circuit board (PCB) 12, between a plurality of connecting portions 24 (back introduction) of terminal 13 that connects power supply and connecting coil 3, form a plurality of wiring graphs.For example, for four utmost point situations, shown in Fig. 2 (Figure 18), form D, E, F, G, N wiring graph; For bipolar situation, shown in Fig. 3 (Fig. 9), form I, J, K, L, M wiring graph.
Above-mentioned printed circuit board (PCB) 12 has to its outer peripheral edges and the outstanding a plurality of connecting portions 24 of inner peripheral ... this connecting portion 24 forms the bigger shape of front end width, simultaneously, the surperficial wiring graph 25 that extends to this connecting portion 24 from above-mentioned each wiring graph D, E, F, G, N, I, J, K, L, M form shapes and connecting portion 24 with terminal wide shape.And the lead-in wire 26 of coil 3 is wound on and comprises this wiring graph 25 on interior connecting portion 24, and welds with scolding tin.
On the other hand, on above-mentioned tellite 12, as shown in Figures 2 and 3, be provided with the docking section 28 of maintenance pin 27 usefulness of printed circuit board (PCB) 12 in the position of avoiding above-mentioned multiple wiring graph (four utmost points, bipolar).Promptly, for four utmost point situations, as shown in Figure 2, form D, E, F, G, N wiring graph, for bipolar situation, as shown in Figure 3, form I, J, K, L, M wiring graph, still, the docking section 28 that is located at maintenance pin 27 usefulness on the printed circuit board (PCB) 12 as shown in Figures 2 and 3, be located at same position,, all be positioned at the position of avoiding all wiring graph D, E, F, G, N, I, J, K, L, M no matter for which kind of situation.
On this printed circuit board (PCB) 12; assembling the lead-in wire 15 of the power supply usefulness that is connected with above-mentioned terminal 13; the heat that this lead-in wire 15 produces when relying on the plastic liners 16 such as polybutylene terephthalate (PBT) that are fixed on this lead-in wire to be protected from the described ester moulding in back and the influence of pressure are perhaps in order to improve and the tight contact of resin.
Above-mentioned liner 16 is made of a pair of spacer block 18,19 that overlaps by thin brace 17 as Fig. 5～shown in Figure 7, at the face that respectively the overlaps 18a of these spacer blocks 18,19, on the 19a, form the degree of depth different a plurality of groove 18bs corresponding, 19b with above-mentioned a plurality of lead-in wire 15.That is, form cross sectional shape less than semicircle (180 degree), and form cross sectional shape greater than semicircle (180 degree) as the groove 19b of the spacer block 19 of the downside of liner 16 as the groove 18b of the spacer block 18 of the upside of liner 16.So, the depth as shallow of groove 18b, the degree of depth of groove 19b is dark.
In addition, on the coincidence face 19a of spacer block 19, form four through holes 20, another form on to the coincidence face 18a of pad 18 degree of depth X than above-mentioned through hole 20 short with the chimeric height of this through hole 20 be four projections 21 of Y.So, liner 16 utilize its a plurality of groove 18b and 19b clamp the lead-in wire 15, in addition, the stator core 1 of loading onto coil 3 is carried out resin-molded in, the only about half of of liner 16 bodies is embedded in the resin integratedly, is fixed on the stator A.
Above-mentioned plastic magnet 8 utilizes the plastic magnet that ferrite and thermoplastic synthetic resin are mixed to form, and this thermoplastic synthetic resin has and the described aluminum end ring 22 essentially identical thermal coefficient of expansions in back.
On the one hand, rotor B is assembled to the bonding agent that utilizes that iron core is shaped with the aluminum dipping form casting on the stage portion 23 of its end ring 22 with above-mentioned annular magnet.
This molded motor, as shown in figure 13, fit on insulator 2 is combined into annular (ring-type), simultaneously, the stator core 1 of fit on coil 3, printed circuit board (PCB) 12 is set in the metal die that is made of patrix 29 and counterdie 30, injects the synthetic resin that constitutes by unsaturated polyester (UP) and molded stator A from two inlets 31.
Here, when injecting synthetic resin, keep pin 27, contact, with the fixed-site of printed circuit board (PCB) 12 and maintain with the above-mentioned docking section 28 of printed circuit board (PCB) 12 from patrix 29 outstanding (forming hole 28A shown in Figure 11) with this inside at framework 4.At this moment, keep pin 27 and docking section 28 as described above, all be in the position of wiring graph D, E when avoiding four utmost points, F, G, N and wiring graph I, J when bipolar, K, L, M.
And, position deviation or distortion that heat that produces when keeping pin 27 to prevent injecting synthetic resin and pressure cause printed circuit board (PCB) 12, thus can guarantee that printed circuit board (PCB) 12 is solidified togather in appointed positions and stator A.
In addition, inlet 31 with the 1a unshakable in one's determination of semi-circular (arcuation) that constitute stator core 1, form on relative two positions on the rectangular counterdie 30 of the interface of 2a.
Under this state, load onto coil 3, make insulator 2 become annular (ring-type) by mutual butt joint, in the butted part W of an one side one side, be provided with large diameter pin 38 at the top of radial fin, simultaneously, the non-butted part Z one a side surveys, and is provided with the pin 39 of minor diameter at the top of identical radial fin.In addition, large diameter pin 38 is positioned at the 1b of tooth portion, front end one side of 2b, and the pin 39 of minor diameter is positioned at yoke 1c, 2c one side.And, the pin 38,39 of these two kinds of size diameter inserted and the embedding platform to Fig. 9 and shown in Figure 180 in advance on above-mentioned printed circuit board (PCB) 12 in the macropore 40 and aperture 41 of processing.Like this, printed circuit board (PCB) 12 is just kept by insulator 2, two 1a unshakable in one's determination of stator core 1 simultaneously, and 2a also is combined into ring-type by printed circuit board (PCB) 12.
In the molded motor that constitutes like this, by pin 38 with insulator 2,39 is chimeric with the hole, big footpath 40 and the path hole 41 of printed circuit board (PCB) 12, can and be combined into annular stator core 1 with semiorbicular 1a unshakable in one's determination, 2a location, so, can abolish unshakable in one's determination in conjunction with the time weld job, thereby can reduce the number of working processes when making and improve the electromagnetic property of stator core.
In addition, owing to large diameter pin 38 is located at the insulating trip 34 of semi-circular (arcuation), butted part W one side of a side of 36, and the pin 39 of minor diameter is located at non-butted part Z one survey of a side, so, near to the big butted part of bond strength influence, use major diameter pin 38 can improve two 1a unshakable in one's determination, the adhesion of 2a.And, because large diameter pin 38 is positioned at the 1b of tooth portion, front end one side of 2b, the pin 39 of minor diameter is positioned at the yoke 1c of coiling coil 3, and 2c one side is not so pin 39 can hinder the winding work of coil 3.Therefore, both can keep the confining force of printed circuit board (PCB) 12, can successfully carry out winding work again.
As shown in figure 13, since with stator A mold pressing be the synthetic resin of one be from two 1a unshakable in one's determination that constitute stator core 1, the interface of the 2a roughly direction of quadrature injects, so, when injecting synthetic resin, can utilize this resin with two 1a unshakable in one's determination, 2a is to the extruding of butt joint direction, just can be during curing with two 1a unshakable in one's determination, 2a firmly combines.
Be located at the shape of the lip-deep wiring graph 25 of a plurality of connecting portions 24 that form on the edge of printed circuit board (PCB) 12, be the terminal wide shape similar to the shape of connecting portion 24, so, when being wound on the lead-in wire 26 of coil 3 on the connecting portion 24, at least can guarantee to go between in two marginal portions of connecting portion 24 and 26 closely contact with wiring graph 25, even central authorities' lead-in wire 26 come-ups at connecting portion 24, also can guarantee to go between and 26 contact with wiring graph 25, thereby can prevent loose contact, obtain the high molded motor of reliability.
In addition, because the docking section 28 of the maintenance pin 27 that forms on printed circuit board (PCB) 12 is positioned at the wiring graph D when avoiding four utmost points, E, F, G, wiring graph I when N and the two poles of the earth, J, K, L, the position of M, so, no matter the wiring graph the when wiring graph when being four utmost points or the two poles of the earth, after printed circuit board (PCB) 12 embeds and keeps pin 27, printed circuit board (PCB) 12 can be kept to such an extent that can not contact with wiring graph, when utilizing synthetic resin to carry out the mold pressing of stator A, just can stably maintain printed circuit board (PCB) 12, distortion that heat that produces when preventing to solidify effectively and pressure cause printed circuit board (PCB) 12 and offset etc.As a result, just can realize the generalization of printed circuit board (PCB) 12 and metal die 29,30, thereby can reduce manufacturing cost.
As position probing with and the material that is installed in the annular magnet 8 on the end ring 22 of rotor B is a plastic magnet, because the thermal coefficient of expansion of these plastics is approximate with the aluminium (or zinc) as die casting, so, even the heat that produces when being turned round by rotor B heats, carry out same expansion and contraction with end ring 22, thermal deformation can not take place in magnet, can prevent the magnet breakage yet, make the shaping management of rotor B easy, thereby durability and the splendid molded motor of reliability can be provided.
In addition, because the groove 19b as the spacer block 19 of the downside of liner 16 forms cross sectional shape greater than semicircle (180 degree), so, utilize this groove 19b securely lead-in wire 15 to be maintained, even heat and pressure effect are arranged when carrying out the mold pressing of stator core 1, also lead-in wire 15 can be positioned in this groove 19b reliably.As a result, utilization is deepened so simple structure with the degree of depth of the groove 19b of spacer block 19 on one side, just can improve assembling operation efficient.
That is, owing to the cross sectional shape of the groove 19b that the degree of depth is deepened forms is a circular shape greater than semicircle, so the marginal portion that utilizes these circular arc two ends to give prominence to just can guarantee lead-in wire 15 is maintained.But groove 19b not necessarily must form greater than semicircle, only its degree of depth is deepened also can obtain same effect to semicircular degree.
Form on the coincidence face 19a of spacer block 19 degree of depth X that forms on four the coincidence face 18a of through hole 20 than above-mentioned through hole 20 at another spacer block 18 short with the chimeric height of this through hole 20 be four projections 21 of Y, so, with two liners 18, under the 19 chimeric states, the part of through hole 20 still remains the cavity.When carrying out the mold pressing of stator core 1, owing to being immersed in this cavity, resin is cured, so, can further strengthen the adhesion and liner 16 the fixing own of spacer block 18,19, so spacer block 16 just is fixed firmly in the stator core 1.
Therefore, even molded motor uses the back that vibration takes place or along with the prolongation of service time, lead-in wire 15 can not deviate from from liner 16, liner 16 can not split away off from stator A yet, thereby can obtain durability and the splendid molded motor of reliability.
In the above-described embodiments, utilize the 1a unshakable in one's determination of semi-circular (180 degree circular-arc), 2a constitutes stator iron 1, utilize semiorbicular insulating trip 34,35 and 36,37 constitute insulator 2, still, be not limited to this, also the butt joint of circular-arc a plurality of iron cores that can angle is littler or insulating trip constitutes the stator core and the insulator of ring-type.
In addition, in an embodiment, be prerequisite with the direct current machine, still self-evident, be applied to induction machine, also can obtain same effect.
As mentioned above, according to the present invention, by the assigned address of the pin of insulating element and printed circuit board (PCB) is chimeric, with a plurality of circular-arc iron cores location, just can form the stator core of ring-type, so, weld job in the time of not only can abolishing in conjunction with iron core, reduce the number of working processes when making, simultaneously, can also improve the electromagnetic property of stator core.
Except above-mentioned situation, because the diameter of pin that makes each butted part unshakable in one's determination one side is greater than the diameter of other pins, so, can near to the big butted part of bond strength influence, improve each adhesion unshakable in one's determination.
On the basis of the above, making the pin of front end one side of the tooth portion that is positioned at stator core is major diameter, and making the pin that is positioned at yoke one side is minor diameter, so, can under the situation of keeping the printed circuit board (PCB) confining force, successfully carry out the winding work of coil.
On the basis of the above, make on each coincidence face of spacer block in order to the degree of depth of the groove on the spacer block of the degree of depth of the groove of the circle of clamping lead-in wire and another side different, so, can simply and reliably lead-in wire be fixed and held in the groove of the spacer block that the degree of depth of groove is deepened.Therefore, utilize this simple structure just can improve the assembling operation efficient of liner significantly.
On the basis of the above, the spacer block on both sides is overlapped carry out in conjunction with the time, the part of through hole still remains the cavity that does not embed projection, when carrying out mold pressing, the hollow sectors that synthetic resin flow into through hole is cured.Thereby, owing to can improve the adhesion of both sides spacer block and the adhesion of synthetic resin and liner by means of the synthetic resin that flows into hollow sectors, so even molded motor uses the back that vibration takes place or along with the prolongation of service time, lead-in wire can not deviate from from liner yet, liner can not split away off from stator yet, thereby can obtain durability and the splendid molded motor of reliability.
On the basis of the above, the material that is installed in the ringshaped magnet on the end ring of rotor as position probing with (or rotation detect with) is to use plastic magnet, the thermal coefficient of expansion of these plastics is approximate with aluminium that constitutes end ring or zinc, so, can similarly expand with end ring and shrink, thermal deformation can not take place in magnet, can prevent the magnet breakage, thereby the splendid molded motor of durability reliability of rotor can be provided.
On the basis of the above, make the shape of lip-deep wiring graph of the outstanding laterally a plurality of connecting portions that form in marginal portion that are located at printed circuit board (PCB) similar to the shape of connecting portion, so, when being wound up into stator coil on the connecting portion, at least can guarantee that in two marginal portions of connecting portion stator coil closely contacts with wiring graph, even central stator coil come-up at connecting portion, can guarantee that also stator coil contacts with wiring graph, prevent loose contact, thereby can obtain the high molded motor of reliability.
On the basis of the above, when the docking section that the maintenance pin of printed circuit board (PCB) is used is located at and avoids the two poles of the earth on the printed circuit board (PCB) and the position of the wiring graph during four utmost points, so, no matter the wiring graph the when wiring graph when being the two poles of the earth or four utmost points, printed circuit board (PCB) can be kept to such an extent that can not contact after will keeping pin and printed circuit board (PCB) being chimeric with wiring graph, so, when utilizing synthetic resin to carry out mold pressing, just can stably maintain printed circuit board (PCB), thereby heat that produces when preventing to solidify effectively and pressure cause printed circuit board (PCB) distortion and position deviation etc.As a result, the generalization of printed circuit board (PCB) and mould can be realized, thereby manufacturing cost can be reduced.
A---stator
B---rotor
C---rotating shaft
1---stator core
2---insulator (insulating element)
3---coil (stator coil)
4---framework
12---printed circuit board (PCB)
34,35,36,37---insulating trip
38---large diameter pin
39---the pin of minor diameter
40---hole, big footpath
41---diameter holes
Claims (8)
1. molded motor, its utilizes will the reel stator of stator coil and device of the synthetic resin with electrical insulating property to be molded into one at the ring-type printed circuit board (PCB) of end winding one side and to constitute, it is characterized in that: said stator use insulating element by forming synthetic resin will dock a plurality of circular arcs that form ring-type unshakable in one's determination topped after, stator coil is wound on respectively on above-mentioned each iron core, simultaneously, to be projected into end winding one side and be entrenched on the assigned address of the printed circuit board (PCB) of ring-type, from each insulating element by above-mentioned location unshakable in one's determination is formed ring-type with pin that insulating element forms one.
2. by the described molded motor of claim 1, it is characterized in that: the diameter of the pin of each butted part unshakable in one's determination one side is greater than the diameter of other pins.
3. by the described molded motor of claim 1, it is characterized in that: said stator is made of a plurality of tooth portions and yoke, and the pin that is positioned at tooth portion one side is a major diameter, and the pin that is positioned at yoke one side is a minor diameter.
4. by the described molded motor of claim 1, it is characterized in that: synthetic resin carries out mold pressing simultaneously to the plastic liner of fixing the lead-in wire of powering to stator coil, simultaneously, above-mentioned liner is made of a pair of spacer block that overlaps, on each coincidence face of this spacer block, use different with on the liner of the degree of depth of the circular groove of the above-mentioned lead-in wire of clamping and another side.
5. by the described molded motor of claim 4, it is characterized in that: on the coincidence face of the spacer block on the one side that constitutes liner, form through hole, on the coincidence face of the spacer block of another side, form with this through hole chimeric projection shorter than the degree of depth of above-mentioned through hole.
6. by the described molded motor of claim 1, it is characterized in that: have the ringshaped magnet that position probing is used and be installed in rotor on the end ring, above-mentioned magnet is that ferrite is mixed with thermoplasticity synthetic resin, utilizes plastic magnet with temperature characterisitic identical with above-mentioned end ring to form.
7. by the described molded motor of claim 1, it is characterized in that: printed circuit board (PCB) has the part of the stator coil of reeling of giving prominence to formation laterally or a plurality of connecting portions of end at its edge part, is provided with the shape distribution loop graph shape similar to this connecting portion on the surface of each connecting portion.
8. by the described molded motor of claim 1, it is characterized in that: on printed circuit board (PCB), the position of the wiring graph the when the two poles of the earth that form on avoiding this circuit board and four utmost points is provided with the docking section that printed circuit board (PCB) keeps pin to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94117742A CN1122528A (en) | 1994-10-31 | 1994-10-31 | Molded motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94117742A CN1122528A (en) | 1994-10-31 | 1994-10-31 | Molded motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1122528A true CN1122528A (en) | 1996-05-15 |
Family
ID=5038514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94117742A Pending CN1122528A (en) | 1994-10-31 | 1994-10-31 | Molded motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1122528A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010006519A1 (en) * | 2008-07-14 | 2010-01-21 | 许晓华 | Assembling structure of a hall device in a brushless dc motor |
| WO2010124534A1 (en) * | 2009-04-29 | 2010-11-04 | 中山大洋电机制造有限公司 | Stator structure for three-phase motor |
| CN102377259A (en) * | 2010-08-24 | 2012-03-14 | 锦州汉拿电机有限公司 | Alternating-current generator and stator thereof |
| CN101399480B (en) * | 2007-09-25 | 2012-07-18 | 日立空调·家用电器株式会社 | Motor for driving |
| CN101588100B (en) * | 2008-05-23 | 2013-02-06 | 乐金电子(天津)电器有限公司 | Motor |
| CN102132366B (en) * | 2009-01-14 | 2013-03-06 | 三菱电机株式会社 | Method for manufacturing laminated core and tool for manufacturing same |
| CN103032243A (en) * | 2011-10-04 | 2013-04-10 | 株式会社电装 | Starter including noise reduction filter |
| CN103314506A (en) * | 2011-01-18 | 2013-09-18 | 三菱电机株式会社 | Molded motor and air conditioner |
| CN103532312A (en) * | 2012-06-28 | 2014-01-22 | Lg伊诺特有限公司 | Motor |
| CN103532313A (en) * | 2012-06-28 | 2014-01-22 | Lg伊诺特有限公司 | Motor |
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1994
- 1994-10-31 CN CN94117742A patent/CN1122528A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399480B (en) * | 2007-09-25 | 2012-07-18 | 日立空调·家用电器株式会社 | Motor for driving |
| CN101588100B (en) * | 2008-05-23 | 2013-02-06 | 乐金电子(天津)电器有限公司 | Motor |
| WO2010006519A1 (en) * | 2008-07-14 | 2010-01-21 | 许晓华 | Assembling structure of a hall device in a brushless dc motor |
| TWI420784B (en) * | 2009-01-14 | 2013-12-21 | Mitsubishi Electric Corp | Method for manufacturing laminated core and manufacturing jig thereof |
| CN102132366B (en) * | 2009-01-14 | 2013-03-06 | 三菱电机株式会社 | Method for manufacturing laminated core and tool for manufacturing same |
| WO2010124534A1 (en) * | 2009-04-29 | 2010-11-04 | 中山大洋电机制造有限公司 | Stator structure for three-phase motor |
| CN102377259A (en) * | 2010-08-24 | 2012-03-14 | 锦州汉拿电机有限公司 | Alternating-current generator and stator thereof |
| CN102377259B (en) * | 2010-08-24 | 2014-05-07 | 锦州汉拿电机有限公司 | Alternating-current generator and stator thereof |
| CN103314506B (en) * | 2011-01-18 | 2015-11-25 | 三菱电机株式会社 | Molding type motor and air conditioner |
| CN103314506A (en) * | 2011-01-18 | 2013-09-18 | 三菱电机株式会社 | Molded motor and air conditioner |
| US9515532B2 (en) | 2011-01-18 | 2016-12-06 | Mitsubishi Electric Corporation | Mold motor and air conditioner |
| CN103032243A (en) * | 2011-10-04 | 2013-04-10 | 株式会社电装 | Starter including noise reduction filter |
| CN103532313A (en) * | 2012-06-28 | 2014-01-22 | Lg伊诺特有限公司 | Motor |
| US9312737B2 (en) | 2012-06-28 | 2016-04-12 | Lg Innotek Co., Ltd. | Motor |
| CN103532313B (en) * | 2012-06-28 | 2016-05-11 | Lg伊诺特有限公司 | Motor |
| US9419500B2 (en) | 2012-06-28 | 2016-08-16 | Lg Innotek Co., Ltd. | Motor comprising a plate module |
| CN103532312A (en) * | 2012-06-28 | 2014-01-22 | Lg伊诺特有限公司 | Motor |
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