CN106936227A - Automobile current generator winds self bonding stator and rotor iron core and its processing technology and equipment - Google Patents

Abstract

The technical scheme is that a kind of automobile current generator winding self bonding stator and rotor iron core, helical form stator and rotor punching including continuous winding, the stator and rotor punching overlaps superposition up and down, is connected by adhesive between the adjacent stator and rotor punching of upper and lower two-layer.Simple structure of the present invention, manufacturing procedure is few, good connecting effect, low cost, and the performance of stator and rotor iron core will not be impacted, and reaches motor reduction noise, puies forward high performance effect.

Description

Winding self-adhesive stator and rotor cores of automobile generators and its processing technology and equipment

technical field

The invention relates to a motor electronic iron core, in particular to a winding self-adhesive stator and rotor iron core of an automobile generator and its processing technology and equipment.

Background technique

The stator and rotor cores are a structure composed of many silicon steel punches with insulating coating (the punches include continuous winding type and single-piece type). Here, there are two connection methods between the punched pieces of the existing winding stator and rotor cores: welding and rivets, but no matter which technology is used, the processing is divided into multiple processes.

As far as the welding process is concerned, a series of spiral punches are screwed into the welding mold according to the position of the marked groove and pressed tightly, and then welded in the welding groove on the outer diameter side of the stacked punches, because the welding temperature is relatively high , the stator (or rotor) will heat up and expand during the welding process, but due to the different materials of the solder and the stamping sheet, the expansion coefficients of the two are also inconsistent, and occasionally problems such as broken welding and missing welding will occur, and repair welding is required or spot welding. Furthermore, the magnetic conduction of the welding high-temperature melting region of the stator and rotor will be affected, thereby affecting the performance of the stator and rotor to a certain extent. In addition, welding requires a large amount of electricity and welding materials, the cost is high, and waste gas will be generated during the welding process, which will pollute the environment.

The rivet connection is to screw a series of spiral punches into the riveting mold according to the position of the marking groove and press them tightly, and then insert rivets at the positions of the rivet holes and then perform riveting. The whole process is complicated and complicated, and the operation is very troublesome. Moreover, the rivet holes of the stator and rotor will also block the magnetic conduction in this area, thereby affecting the performance of the stator and rotor.

Whether it is welding or riveting, it can only be fixedly connected to the outer circular side or yoke of the stator and rotor, while the slots and teeth of the stator and rotor are easy to warp and have a low overlapping coefficient, which will have a negative impact on the performance and noise of the motor.

Contents of the invention

In view of the above problems, the present invention provides a winding self-adhesive stator and rotor core of an automobile generator, which has a simple structure, less processing steps, good connection effect, low cost, and will not affect the performance of the stator and rotor cores. make an impact.

The technical solution of the present invention is a winding self-adhesive stator and rotor iron core of an automobile generator, including continuously wound spiral stator and rotor punches, the stator and rotor punches are stacked up and down, and the upper and lower layers are in phase with each other. Adjacent stator and rotor punches are connected and fixed by adhesive.

Preferably, the adhesive is epoxy resin adhesive.

The processing technology of the present invention is as follows: first, the stator and rotor stamping sheets are stamped into continuous zigzag strip silicon steel sheets by stamping dies, after the stamping process, the buffer zone before the winding process is provided with an adhesive supply part, stamping When the final stator and rotor punching sheets pass through the adhesive supply part, the adhesive can be evenly attached to the silicon steel sheet. Solidify after pressure, thus forming a dense stator and rotor as a whole.

The processing equipment of the present invention includes a stamping part, an adhesive supply part, a winding part and a laminating part, and the surface of the adhesive supply part is provided with a transverse glue outlet corresponding to the stator and rotor punching yokes and corresponding to the The longitudinal glue outlets of the stator and rotor punching teeth, the transverse glue outlets are arranged at equal intervals along the lateral direction of the adhesive supply part, and there are multiple groups of the longitudinal glue outlets, and the same group is equidistant along the longitudinal direction of the adhesive supply part Arrangement, different groups are arranged at equal intervals along the lateral direction of the adhesive supply part, the lateral distance between the longitudinal glue outlets of adjacent groups is equal to the distance between the centers of two adjacent tooth poles of the stator and rotor punching pieces, two adjacent The distance between the transverse glue outlets is equal to the distance between the centers of two adjacent slots of the stator and rotor punching pieces.

The invention has the advantages of simple structure, few processing procedures, good connection effect, low cost, and no influence on the performance of the stator and rotor iron cores, and achieves the effects of reducing noise and improving performance of the motor.

Description of drawings

Fig. 1 is the structural representation of motor stator and rotor of the present invention;

Fig. 2 is the structural representation of sawtooth strip silicon steel sheet of the present invention;

Fig. 3 is the structural schematic diagram of the glue spraying process and the winding process of the zigzag strip silicon steel sheet of the present invention;

Fig. 4 is the structural representation of adhesive supply part in the present invention;

Fig. 5 is the structural representation of laminated mold among the present invention;

Fig. 6 is a sectional view along the A-A direction in Fig. 5;

Among them: 1—stator and rotor punching sheet; 11—tooth pole; 12—tooth slot; 2—adhesive supply part; 21—transverse glue outlet; 22—longitudinal glue outlet; 3—lamination mold.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Fig. 1, the present invention provides a winding self-adhesive stator and rotor core of an automobile generator, including continuously wound helical stator and rotor punches 1, and the stator and rotor punches 1 overlap up and down Superposition, the upper and lower layers of adjacent stator and rotor punches 1 are connected and fixed by adhesive.

Preferably, the adhesive is epoxy resin adhesive.

As shown in Fig. 2 to Fig. 3, the present invention provides a winding and self-adhesive stator and rotor core processing technology for automobile generators. For silicon steel sheets, an adhesive supply part 2 is set in the buffer zone after the stamping process and before the winding process. When the stamped stator and rotor punches 1 pass through the adhesive supply part 2, the adhesive can evenly adhere to the silicon steel sheet. On the silicon steel sheet, the silicon steel sheet is in the shape of a spring after the winding is completed, and it is placed in the lamination mold 3 for superposition and pressure. Any part between the layers is firmly bonded, and the lamination coefficient can also be well guaranteed, thus forming a dense stator and rotor as a whole.

As shown in Figures 4 to 6, the present invention provides a winding self-adhesive stator and rotor core processing equipment for automobile generators, including a stamping part, an adhesive supply part 2, a winding part and a lamination part, The surface of the adhesive supply part 2 is provided with a transverse glue outlet 21 corresponding to the yoke of the stator and rotor punches 1 and a longitudinal glue outlet 22 corresponding to the teeth of the stator and rotor punches 1. The openings 21 are arranged at equal intervals along the transverse direction of the adhesive supply part 2, and there are multiple groups of the longitudinal glue outlets 22, the same group is arranged at equal intervals along the longitudinal direction of the adhesive supply part 2, and between different groups are arranged at equal intervals along the adhesive supply part 2. Arranged at equal intervals in the horizontal direction, the transverse distance between adjacent groups of longitudinal glue outlets 22 is equal to the distance between the centers of two adjacent tooth poles 11 of the stator and rotor punches 1, and the distance between two adjacent transverse glue outlets 21 It is equal to the distance between the centers of two adjacent slots 12 of the stator and rotor punching plates 1 .

The above is only a preferred embodiment of the present invention, and is not intended to limit the invention in any form. Any simple modifications, equivalent changes or modifications made to the above embodiments according to the technical principles of the present invention still belong to this invention. within the scope of the technical solution of the invention.

Claims (4)

1. a kind of helical form stator and rotor punching of automobile current generator winding self bonding stator and rotor iron core, including continuous winding（1）, It is characterized in that：The stator and rotor punching（1）Superposition, the adjacent stator and rotor punching of upper and lower two-layer are overlapped up and down（1）Between lead to Adhesive is crossed to be connected.

2. a kind of automobile current generator according to claim 1 winds self bonding stator and rotor iron core, it is characterised in that：It is described Adhesive is epobond epoxyn.

3. a kind of automobile current generator winds self bonding stator and rotor iron core processing technology, it is characterised in that：The stator and rotor punching （1）Continuous jagged strip silicon steel sheet, the buffering area after stamping procedure, before rolling step are struck out by stamping die Adhesive supply unit is set（2）, the stator and rotor punching after punching press（1）By adhesive supply unit（2）When adhesive can be uniform It is attached on silicon steel sheet, silicon steel sheet is placed on laminated mold after the completion of winding（3）Pressure is inside overlapped, adhesive is in silicon steel Solidified after piece superposition pressure, so as to form a stator and rotor entirety for densification.

4. a kind of automobile current generator winds self bonding stator and rotor iron core process equipment, it is characterised in that：Including pressing part, bonding Agent supply unit（2）, winder and laminate portion, described adhesive supply unit（2）Surface is offered corresponding to stator and rotor punching（1） The horizontal gum outlet in yoke portion（21）With corresponding to rotor punching（1）Longitudinal gum outlet of teeth portion（22）, the horizontal gum outlet （21）Along adhesive supply unit（2）Laterally it is equally spaced, longitudinal gum outlet（22）Have multigroup, same group supplies along adhesive To portion（2）Longitudinal direction is equally spaced, along adhesive supply unit between different groups（2）Laterally it is equally spaced, adjacent sets longitudinally go out Jiao Kou（22）Between lateral separation be equal to stator and rotor punching（1）Two adjacent teeth pole（11）The distance between center, it is two neighboring Horizontal gum outlet（21）The distance between be equal to stator and rotor punching（1）Two adjacent teeth groove（12）The distance between center.