CN1269287C - Reeling arrangement of automobile generator - Google Patents

Abstract

A bobbin structure is provided to allow for ease of assembly of bobbin regardless of temperature change, and prevent a deformation of bobbin caused due to overheat of motor. A bobbin(8) wound with an exciting coil has a cut-out portion(84) formed at the top of the bobbin. The cut-out portion is formed by cutting upper blades and inner surface of the bobbin. The bobbin has a connection portion(85) opposed to the cut-out portion. The connection portion is formed by cutting lower blades and connecting the inner surface of the bobbin through a thin slot. Thus-obtained semi-spherical bobbins(8a,8b) are spread centering from the connection portion. The blades of only one of the semi-spherical bobbins have protrusions(86a,86b).

Description

The bobbin structure of electric generater of vehicle

Technical field

The present invention relates to electric generater of vehicle, relate in particular to the bobbin of electric generater of vehicle, it is fixed in field core also as the insulating material between field core and the magnet exciting coil, be formed at the formation position of the lug boss of bobbin alar part by change, thereby can improve the assembleability of the bobbin that is fixed in field core under the situation that is not acted upon by temperature changes.

Background technology

Usually, thereby electric generater of vehicle is that the kinetic energy that the actuating force by engine produces is transformed into the electric energy self generating, and as shown in Figure 1, belt pulley p accepts from the actuating force of engine a S to be rotated, thereby makes the magnetic pole 1 that is pressed in axle S be rotated motion.

At this moment, will magnetizing field iron core 5 if be fixed with the magnet exciting coil 4 upper reaches overcurrent of magnet exciting coil device of the voltage regulator 3 of tail-bracket 2, the magnetic flux of the field core 5 that is magnetized passes to stator 6 by each magnetic pole 1 and produce induced electricity on axle 9, and rectifier 7 is transformed into direct current with alternating current after the coil 60 of stator 6 produces alternating currents.

In aforesaid electric generater of vehicle, the magnet exciting coil 4 that is used to produce excitation power is absolutely necessary, and this magnet exciting coil 4 produces excitation power with the state that is wound in field core along with the rotation of axle.

For prevent and magnet exciting coil between short circuit, as shown in Figure 2, on the inboard whole position of field core 5, pasted insulating tape 50 in the past.

Prevent short circuit between field core 5 and the magnet exciting coil by the insulating tape 50 that is wound in described field core 5, but in the past because of all must winding insulating tape 50 at the inboard whole position of field core 5, so operability is bad and product quality is very unstable.

For solving described existing issue, have recently and between field core and magnet exciting coil, get involved the bobbin of making by megohmite insulant so that improve the electric generater of vehicle of operation and assembleability.

According to Republic of Korea's patent disclosure communique 1998-14522 number, shown in Fig. 3 a and 3b, on the upside top of the bobbin 8 that is wound with magnet exciting coil 4, form the cut 84 that inner circumferential surface 83 is all cut, and have at the linking part 85 of the bottom of relative therewith main body inner circumferential surface 83 by little slit binding, thereby making half and half circular bobbin 8a, 8b is the basic point expansible with described linking part 85, on the bobbin both sides wing 81,82, form lug boss 86,87, on this lug boss, form the top and the end that can make magnet exciting coil and pass also nipped perforation 86a, 86b.

Then, on two flanks of field core (not shown), be formed with the fixed part that to clamp described bobbin lug boss on the inner wall surface thereof, snap into the fixed part 93,94 of field core 9 respectively and assemble so that will cover the projection 86,87 of the bobbin 8 of described field core.

But aforesaid bobbin becomes difficult because of the material of field core with as the different assemblings that vary with temperature bobbin of material of the bobbin of insulator.Promptly the contraction or expansion of bobbin that ought produce along with variations in temperature and field core is not simultaneously, the bobbin boss is in separated cut two terminal parts of bobbin, so when assembling mutually, the fixed part of the lug boss of bobbin accurately being aimed at and snapped into field core becomes very difficult.

And, under the state that has assembled, when generating itself is overheated with the running of generator, therefore the cut two ends of bobbin are in bond by a plurality of projectioies that are formed at described bobbin, because the difference of described expansion rate is come off the lug boss of the bobbin that is stuck in the field core fixed part or make the bobbin warpage with jammed state generation thermal deformation.

Summary of the invention

The present invention makes in view of described the problems of the prior art, its purpose is for providing a kind of bobbin structure of electric generater of vehicle, only on a certain side line axle wing on cut one side top that with the linking part is basic point and open bobbin, form lug boss, thereby irrespectively improve the assembleability of the bobbin that is fixed in field core with variations in temperature, and under assembled state, make the bobbin minimum that is influenced by heat.

For realizing described purpose, a kind of bobbin structure of electric generater of vehicle, on the upside top of the bobbin that is wound with magnet exciting coil, form the cut that two flanks and inner peripheral surface all are cut open, and two flanks with relative therewith lower body part are cut off the linking part that the back inner circumferential surface links by little slit, thereby making semicircle bobbin is that basic point opens to both sides with described linking part, it is characterized by: only form lug boss on the cut with described bobbin upside top is two flanks of basic point semicircle bobbin of a certain side in a pair of semicircle bobbin that two lateral incisions form.

Description of drawings

Fig. 1 is the sectional drawing of general vehicle with generator;

Fig. 2 is the field core assembling section of existing electric generater of vehicle;

Fig. 3 a, 3b are the front view and the end view of the bobbin of existing electric generater of vehicle;

Fig. 4 is the bobbin front view of electric generater of vehicle of the present invention;

Fig. 5 is the bobbin side cutaway view of electric generater of vehicle of the present invention;

Fig. 6 a, 6b are field core front view and the side cutaway view that is assembled with bobbin of the present invention;

Fig. 7 illustrates the bonding state oblique view that bobbin of the present invention is assembled in the process of field core.

Embodiment

Describe embodiments of the invention with reference to the accompanying drawings in detail.

In the present embodiment, identical with illustrated existing structure part is used identical Reference numeral.

Fig. 4 and Fig. 5 are the bobbin front view and the side cutaway view of electric generater of vehicle of the present invention.

Shown in Fig. 3,4, be applicable to that generator bobbin of the present invention is to form the cut 84 that two flanks 81,82 and inner peripheral surface 83 all are cut open on the upside top of the bobbin 8 that is wound with magnet exciting coil 4, and have the linking part 85 that inner circumferential surface 83 links by little slit after two flanks 81,82 of corresponding therewith lower body part are cut off, making half and half circular bobbin 8a, 8b is that basic point opens to both sides with described linking part 85.

Especially, only being two flanks 81,82 of the semicircle bobbin 8a of a certain side among the benchmark a pair of semicircle bobbin 8a, the 8b that form after two lateral incisions on, the cut with the upside top of described bobbin 8 forms lug boss 86,87 respectively, and this lug boss 86,87 is formed at the terminal part of cut 84 1 sides of semicircle bobbin 8a, is formed at the top and the terminal through hole h that are formed for drawing magnet exciting coil on positive lug boss 86a, the 86b.

Fig. 6 a, 6b are the front view and the side cutaway view of the field core 9 of assembling bobbin of the present invention.Bobbin is assembled to before the field core 9, the lug boss of described bobbin can be blocked and the fixing fixed part corresponding 93,94 with this lug boss thereby overlap to form on two flanks 91,92 of the field core 9 that described bobbin 8 assembles.

So the assembling process that is applicable to electric generater of vehicle bobbin of the present invention that constitutes is as follows.

Fig. 7 illustrates to be applicable to that bobbin of the present invention is assemblied in the assembled state figure of the process of field core.After a pair of semicircle bobbin 8a, the 8b that can entangle field core 9 outer peripheral faces outwards opens, push field core 9 to its inboard, when afterwards the two ends of open semicircle bobbin 8a, 8b being fastened to the inside, thereby lug boss 86a, 86b, 87 that the fixed part 93,94 that is formed at two flanks 91,92 of field core 9 blocks on a certain side line axle 8a that is formed among a pair of semicircle bobbin 8a, the 8b are fixed, the hole h of bobbin lug boss 86a, 86b by assembling like this draws magnet exciting coil and is wound on the bobbin 8, finishes assembling.

Because lug boss 86a, 86b, the 87 only end of a certain side line axle 8a among a pair of semicircle bobbin 8a, 8b form the trouble of bringing to assembling under the bobbin that produces owing to external temperature in the time of can preventing to assemble and the expansion of field core or the mutually different situation of shrinkage.

Promptly, be subjected to the influence of external temperature and produce under the situation of a certain amount of section contraction or expansion at the bobbin made from mutually different material 8 and field core 9, when this bobbin 8 is assembled in field core 9, the a pair of semicircle bobbin 8a that is being cut open only, a certain side line axle 8a among the 8b goes up and forms lug boss 86a, 86b, 87, so have only semicircle bobbin 8a, the side line axle 8a of 8b is fixed in the fixed part 93 of field core, 94, and opposite side is fixed in the outer peripheral face of field core 9 in the same old way, so the assembling complexity that the difference because of the contraction or expansion rate is caused remains unanimity.

Be in state in bond because of having only the semicircle bobbin 8a of a side among a pair of semicircle bobbin after the assembling, but and opposite side free wxpansion or contraction can prevent the bobbin warpage that is caused by generator overheating again.

As mentioned above, the vehicle according to the invention bobbin structure of generator, by being that basic point forms lug boss with the cut on a certain side line axle wing of both sides open bobbin cut end only, irrespectively improve the assembleability of the bobbin that is fixed in field core and the warpage that causes because of generator overheating under the state that can prevent from advance to have assembled with variations in temperature.

Though the present invention illustrates and illustrates certain embodiments, usually know that the knowledgeable knows clearly but this industry has, the present invention can be carried out diversified transformation and variation in the limit of the spirit and scope of the invention that does not exceed following claims and had.

Claims (1)

1. the bobbin structure of an electric generater of vehicle, on the upside top of the bobbin that is wound with magnet exciting coil (4) (8), form the cut (84) that two flanks (81,82) and inner peripheral surface (83) all are cut open, and have relative therewith lower body part two flanks (81,82) and be cut off the linking part (85) that back inner circumferential surface (83) links by little slit, thereby making semicircle bobbin (8a, 8b) is that basic point opens to both sides with described linking part (85), it is characterized by:

Only be the last first lug boss (86a of formation of a flank (81) of basic point semicircle bobbin of a certain side (8a) in a pair of semicircle bobbin (8a, 8b) that two lateral incisions form in cut (84) with described bobbin (8) upside top, 86b), go up formation second lug boss (87) at his flank (82).

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