CN102306961B

CN102306961B - process for manufacturing motor

Info

Publication number: CN102306961B
Application number: CN201110272506.4A
Authority: CN
Inventors: 符艳君; 曾成; 曾逸
Original assignee: ADTECH (SHENZHEN) TECHNOLOGY Co Ltd
Current assignee: ADTECH (SHENZHEN) TECHNOLOGY Co Ltd
Priority date: 2011-09-01
Filing date: 2011-09-01
Publication date: 2014-10-15
Anticipated expiration: 2031-09-01
Also published as: CN102306961A

Abstract

The invention discloses a stator manufacturing technology. The stator of the motor comprises an even number of circumferentially equally divided iron cores, coils wound on the iron cores and arranged to form a trapezoid, a printed circuit board (PCB) for connecting tail wires of the coils on each iron core, and a housing case with an open slot. Stator laminations on each iron core of the stator of the motor are high in stacking accuracy; slot fullness after the winding of each iron core is high; the splicing tail wires of each iron core are well processed, and winding in the motor is free from interference; and the coils of the stator are connected with the outside in a terminal way, so the motor is simple in connection and convenient to keep.

Description

A kind of manufacturing process of stator

Technical field

The present invention relates to a kind of motor stator, especially relate to a kind of manufacturing process of stator.

Background technology

The internal structure schematic diagram of motor as being depicted as in Fig. 1.Motor comprises stator 1 and rotor 2, is wound with coil 4 on magnetic pole of the stator 3, thereby between stator and rotor, forms magnetic field electric machine rotation in the time of coil electricity.

The process drawing of motor stator as being depicted as in Fig. 2.In thin silicon steel plates 5, utilize punch forming to go out stator steel disc 6, multiple stator steel discs are stacked and form stator core 7, finally coil winding has just been manufactured on iron core to stator 1.

Winding on described motor stator is normally wrapped in wire on each magnetic pole tooth of motor stator by coiling mouthful, and on making stator punching process light plate, residual materials is more.In order to improve the occupation efficiency that winds the line in each magnetic pole opening and reduce waste of material, having now the spliced manufacturing method for stators that adopts JP6-105487A etc.If Fig. 3 is spliced stator process drawing, be divided into punching (punching both sides concave-convex, convenient splicing), lamination, coiling, splicing etc.But in spliced stator manufacture process, in the time that stator punching is carried out to lamination, the bad guarantee of assembly precision, is easy to be affected by human factors, and makes motor performance unstable; Adopt after the method coiling, between each stator core, winding the line does not separately connect, connecting line difficult treatment, and motor internal often has a lot of buttock lines; Motor is connected with the outside wire that adopts, easily wearing and tearing in long-term use procedure.

Summary of the invention

For above problem the present invention, the motor stator that a kind of structure is along the circumferential direction decile splicing is proposed, the stator proposing comprise on the even number iron core that along the circumferential direction carries out decile, iron core be wound with coil, for connecting the PCB plate of coil buttock line on each iron core and the casing with an open slot, form and on each stator punching of described iron core, be respectively arranged with concavo-convex point for ensureing that the cooperation between each stator punching is accurate when the lamination.

In addition, the present invention, in order further to improve coil copper factor, is coiled into the coil on each iron core the coil that is trapezoidal arrangement from magnetic pole tooth inner periphery direction to stator direction.

In addition, the present invention is for the buttock line problem that winds the line separately because of each iron core and produce, adopt described multiple core packets are surrounded after the circular stator that forms ring-type, each winding leading-out wire is welded in respectively on circuit board, multiple connecting lines of each phase are well processed, thereby ensure that motor internal is noiseless between winding the line, prevented that the each pole coil after coiling is lax.

In addition, the present invention, for the wiring problem between motor stator and external control signal, adopts binding post to replace cable operation, thereby makes motor connect simply, maintain easily keeping.

Beneficial effect of the present invention is:

According to above structure, than common spliced stator and manufacturing process, the present invention processes concavo-convex point in single punching, thereby ensures lamination precision; Coil on each magnetic pole tooth is coiled into trapezoidal, thereby further improved coil copper factor; Each magnetic pole buttock line problem producing that winds the line is separately adopted to the welding of PCB plate, ensure that each pole coil is lax and mutually noiseless; Stator adopts terminal mode with outside connection, makes motor connect simply, take care of convenient.

Brief description of the drawings

Fig. 1 is the structure principle chart of general motor

Fig. 2 is the process drawing of general motor stator

Fig. 3 is spliced stator process drawing

Fig. 4-10 are that stator of the present invention is manufactured procedural order figure

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, the motor of the present invention's proposition is described further.

Figure 10 is the stereogram of the preferred embodiment of a kind of motor of the present invention, and described this motor stator comprises the coil 16 that is wound around on the even number iron core 12 that along the circumferential direction carries out decile, iron core, for connecting the PCB plate 18 of coil buttock line on each iron core and having the casing 20 of an open slot 21.

Form and on each stator punching of described iron core 12, be respectively arranged with concavo-convex point 10 for ensureing that the cooperation of 9 of each stator punchings is accurate when the lamination; When each iron core is wound the line respectively, coil is coiled into the coil 16 that is trapezoidal arrangement from magnetic pole tooth inner periphery direction to stator direction, as Fig. 8; On described PCB plate 18, be provided with circuit, for connecting because of each iron core 12 buttock line that coiling produces separately; On described casing 20, have an open slot 21 for the terminal that connects Inside coil and external power source is installed.

A kind of its manufacturing process of manufacturing process of stator comprises punching, lamination, coiling, dipping lacquer, splicing, bonding wire, assembling.Be described in detail as follows:

1. punching: punching adopts cold-rolled silicon steel sheet, use continuous punching mode, on square steel plate 8 once property go out stator punching 9 and on concavo-convex point 10, stator punching 9 both sides one protruding recessed 11, facilitate follow-up stator core 12 to splice, as shown in Fig. 4.

2. lamination: the stator punching of predetermined number 9 is built up to an iron core 12 with the concavo-convex cooperation of point on it 10, as shown in Fig. 5.

3. coiling: be coated with a little 502 glue on the face 13 that need to wind the line at each folded iron core 12 two ends, then stick polyester film 14, two is fixed with plastic stent 15, as shown in Fig. 6.Automatically clapping on machine around pre-fixing turn, and coil is being coiled into the coil that is trapezoidal arrangement from magnetic pole tooth inner periphery direction to stator direction.Cover coil 16 once by each 14 liang of sections of stretching out of polyester film again, redundance is cut, and two polyester film overlappings is cemented to moulding with a small amount of 502 glue.Carry out direct current resistance m easurem ent, the stator core after having wound the line is as shown in Fig. 7 again.

4. dipping lacquer: for further solidifying coil, increase the insulation property of etween the lines, the iron core 12 that winds line is carried out to dipping lacquer processing.

5. splicing: the even number stator core 12 that winds line is coordinated and is combined into a full circle with both sides concavo-convex 11, two iron cores 12 connect as shown in Fig. 8, iron core 12 adopts laser-beam welding machine welding with iron core 12 seam crossings 17, has spliced as shown in Fig. 9.

6. bonding wire: lead-out wires of coil 16 is welded to successively on the corresponding solder joint 19 of PCB plate 18.

7. assembling: drive an open slot 21 for the terminal that connects external circuit and coil is installed on casing 20.Casing 20 is placed in baking box, adds after thermal expansion, take out and be placed on hydraulic press, the full circle stator core 12 having spliced is pressed onto in casing 20, after temperature lowers, owing to relatively rotating for interference fit does not have between casing and stator piece, assemble rear stator as Figure 10.

Claims

1. a manufacturing process of stator, is characterized in that, specifically comprises:

A, punching: punching adopts cold-rolled silicon steel sheet, use continuous punching mode, on square steel plate once property go out stator punching and on concavo-convex point, stator punching both sides one are protruding one recessed, facilitate follow-up stator core to splice;

B, lamination: the stator punching of predetermined number is built up to a stator core with the concavo-convex cooperation of point on it;

C, coiling: on the face that need to wind the line at each folded stator core two ends, be coated with a little 502 glue, stick again polyester film, two is fixed with plastic stent, on automatic coil winding machine, around pre-fixing turn, and coil is coiled into the coil that is trapezoidal arrangement from the outside circumferencial direction of magnetic pole tooth inner periphery direction; Cover coil once by each polyester film two sections of stretching out again, redundance is cut; Two polyester film overlappings are cemented to moulding with a small amount of 502 glue; Carry out again direct current resistance m easurem ent, after having wound the line, obtain stator core;

D, dipping lacquer: for further solidifying coil, increase the insulation property of etween the lines, the stator core that winds line is carried out to dipping lacquer processing;

E, splicing: the even number stator core that winds line is combined into a full circle with the concavo-convex cooperation in both sides, and two stator cores connect, and stator core and stator core seam crossing adopt laser-beam welding machine welding, and splicing completes;

F, bonding wire: lead-out wires of coil is welded to successively on the corresponding solder joint of pcb board;

G, assembling: on casing, drive an open slot for the terminal that connects external circuit and coil is installed, casing is placed in baking box, add after thermal expansion, taking-up is placed on hydraulic press, the full circle stator core having spliced is pressed onto in casing, after temperature lowers, owing to relatively rotating for interference fit does not have between casing and stator punching, after having assembled, obtain stator.