CN102306961A

CN102306961A - Motor

Info

Publication number: CN102306961A
Application number: CN201110272506A
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: 2012-01-04
Anticipated expiration: 2031-09-01
Also published as: CN102306961B

Abstract

The invention discloses a motor, particularly the motor with a stator structure which is formed by circumferential equal division and splicing. 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 motor

Technical field

The present invention relates to a kind of motor, especially relate to the motor of a kind of stator structure for five equilibrium splicing along the circumferential direction.

Background technology

Be illustrated in figure 1 as the internal structure schematic diagram of general motor.Motor comprises stator 1 and rotor 2, is wound with coil 4 on the magnetic pole of the stator 3, rotates thereby when coil electricity, form the magnetic field motor between stator and the rotor.

Be illustrated in figure 2 as the process drawing of general motor stator.On thin silicon steel plates 5, utilize punch forming to go out stator steel disc 6, a plurality of stator steel discs are stacked forms stator core 7, coil is wrapped in has just made stator 1 on the iron core at last.

Winding on the said motor stator normally is wrapped in lead on each magnetic pole tooth of motor stator by the coiling mouth, and residual materials is more on the making stator punching process light plate.In order to improve the occupation efficiency that winds the line in each magnetic pole opening and reduce waste of material, have now the spliced manufacturing method for stators that adopts JP6-105487A etc.Like Fig. 3 is spliced stator process drawing, is divided into punching (punching both sides one recessed are protruding, convenient splicing), lamination, coiling, splicing etc.But in the spliced stator manufacture process, the bad assurance of assembly precision when stator punching is carried out lamination is easy to be subjected to human factor to influence, and makes motor performance unstable; After adopting the method coiling, coiling is separate between each stator core does not connect, the connecting line difficult treatment, and motor internal often has a lot of buttock lines; Motor is connected easy abrasion in the long-term use with the outside lead that adopts.

Summary of the invention

To above problem the present invention the motor stator of a kind of structure for five equilibrium splicing along the circumferential direction proposed; The stator that is proposed comprises on the even number iron core that along the circumferential direction carries out five equilibrium, the iron core and is wound with coil, is used to the casing that connects the pcb board of coil buttock line on each iron core and have an open slot, forms to be respectively arranged with concavo-convex point on each stator punching of said iron core and to be used for when lamination, guaranteeing that the cooperation between each stator punching is accurate.

In addition, the present invention is from magnetic pole tooth inner periphery direction the coil coiled on each iron core the coil of trapezoidal arrangement in order further to improve the coil copper factor to the 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; After employing surrounds the stator of circular formation ring-type with said a plurality of core packets; Be welded in each winding lead-out wire on the circuit board respectively; Good treatment a plurality of connecting lines of each phase; Thereby guaranteed that motor internal is noiseless between winding the line, each pole coil after preventing to wind the line is lax.

In addition, the present invention adopts binding post to replace the cable operation for the wiring problem between motor stator and the external control signal, 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 guarantees the lamination precision; Coil coiled on each magnetic pole tooth is trapezoidal, thereby has further improved the coil copper factor; Buttock line problem employing pcb board welding to each magnetic pole winds the line separately and produces guarantees that each pole coil is lax and noiseless each other; Stator adopts the terminal mode with outside the connection, makes that motor connects simply, keeping is convenient.

Description of 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 is that stator of the present invention is made procedural order figure

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment the motor that the present invention proposes is further specified.

Figure 10 is the stereogram of the preferred embodiment of a kind of motor of the present invention, and said this motor stator comprises the coil 16 that twines on the even number iron core 12 that along the circumferential direction carries out five equilibrium, the iron core, be used to the casing 20 that connects the pcb board 18 of coil buttock line on each iron core and have an open slot 21.

Form and be respectively arranged with concavo-convex point 10 on each stator punching of said iron core 12 and be used for when lamination, guaranteeing that the cooperation of 9 of each stator punchings is accurate; When each iron core is wound the line respectively the coil coiled is the coil 16 of trapezoidal arrangement from magnetic pole tooth inner periphery direction to the stator direction, like Fig. 8; Said pcb board 18 is provided with circuit, is used to connect the buttock line that winds the line and produce separately because of each iron core 12; Have an open slot 21 on the described casing 20 and be used to install the terminal that connects Inside coil and external power source.

Its manufacturing process of a kind of manufacturing process of stator comprises punching, lamination, coiling, dipping lacquer, splicing, bonding wire, assembling.Describe in detail as follows:

1. punching: the cold-rolled silicon steel sheet is adopted in punching, use continuous impact style, on the square steel plate 8 once property go out stator punching 9 and on concavo-convex point 10, stator punching 9 both sides one protruding are recessed 11, convenient follow-up stator core 12 splices, as shown in Figure 4.

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

3. coiling: be coated with a little 502 glue on the face 13 that need wind the line at each folded iron core 12 two ends, stick polyester film 14 again, two is fixed with plastic stent 15, as shown in Figure 6.Automatically clapping on machine around the predetermined number of turns, and the coil coiled is being the coil of trapezoidal arrangement to the stator direction from magnetic pole tooth inner periphery direction.Again 14 liang of sections of stretching out of polyester film are respectively covered coil 16 once, redundance is cut, and with a small amount of 502 glue two polyester film overlappings is cemented moulding.Carry out D.C. resistance again and measure, the stator core after coiling is accomplished as shown in Figure 7.

4. dipping lacquer: be further to solidify coil, increase the insulation property between line and the line, the iron core 12 that winds line is carried out dipping lacquer handle.

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

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

7. assembling: on casing 20, drive an open slot 21 and be used to install the terminal that connects external circuit and coil.Casing 20 is placed in the baking box, add thermal expansion after, take out and to be placed on the hydraulic press; The full circle stator core 12 that splicing is good is pressed onto in the casing 20; After temperature lowers, owing to do not relatively rotate stator such as Figure 10 after assembling is accomplished between casing and the stator piece for interference fit does not have.

Claims

1. motor; It is characterized in that: said motor stator comprises the even number iron core that along the circumferential direction carries out five equilibrium; Be tied with coil respectively on said a plurality of iron core; Irregular point on the stator punching of said each iron core, the unified pcb board of coil buttock line on each iron core and the casing that is provided with square groove of connecting.

2. motor as claimed in claim 1 is characterized in that: the coil winding of twining on the said stator core is shaped as trapezoidal.

3. motor as claimed in claim 1 or 2 is characterized in that: along the circumferential direction be stitched together after each iron core of said stator winds the line respectively.