CN104079099A

CN104079099A - Motor

Info

Publication number: CN104079099A
Application number: CN201410119260.0A
Authority: CN
Inventors: 涌田雄二; 村尾聪
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2013-03-27
Filing date: 2014-03-27
Publication date: 2014-10-01
Anticipated expiration: 2034-03-27
Also published as: CN104079099B; JP2014193005A

Abstract

The invention provides a motor which comprises a stator and a rotor. The stator comprises a stator core, an insulator, a winding, an insulator terminal base, terminal pins and a circuit substrate. The circuit substrate is provided with through holes with sizes which allow penetration of the terminal pins with winding ends that are respectively wound by a winding. Furthermore, when the circuit substrate is fixed with the insulator, the terminal pins penetrate through the through holes. The winding ends, the terminal pins and the conductive pattern part of the circuit substrate are electrically connected through soldering.

Description

Motor

Technical field

The present invention relates to motor.

Background technology

In recent years, in order to defend influenza virus and pollen etc., require the air cleaning of the interior space.For purifying the air purifier of this room air, require to improve the ability of air cleaning, also require the miniaturization of air purifier main body and save spatialization.

The motor that is loaded into this air purifier is for example recorded in TOHKEMY 2009-33842 communique.Fig. 5 is the sectional view of the motor of disclosed prior art in TOHKEMY 2009-33842 communique.

As shown in Figure 5, stator core 102 is included in the insulating part (Insulator) 103 that its surface forms insulating barrier.Insulating part terminal base 111 is arranged on the peripheral part of insulating part 103.In addition, the insulating part terminal base 111 as from the outstanding protuberance of insulating part 103, is provided with terminal pins 104.Coiling 105 across insulating part 103 packages in stator core 102.And the coiling end of coiling 105 is wound in terminal pins 104, and by soldering thereon.

In addition, through hole 112 is arranged at circuit substrate 106, for terminal pins 104 is passed through.Terminal pins 104 is by through hole 112, and terminal pins 104 is brazed together with the conductive pattern portion of circuit substrate 106, thereby realizes being electrically connected to of coiling 105 and circuit substrate 106.In addition, stator core 102, insulating part 103, circuit substrate 106 and coiling 105 are cured as one, form die casting body 107, become the stator 108 of motor.Rotor 110 is inserted in stator 108, and stator 108 is held fixing with bearing 109, the motor 101 of transition in forming.Rotor 110 by bearing 109 rotations freely herein.

Summary of the invention

Yet, in above-mentioned motor 101, between insulating part terminal base 111 and circuit substrate 106, need, for the coiling end of coiling 105 being wound in to the space of terminal pins 104, to be difficult to realize the slimming of motor 101.

In addition, the coiling end of coiling 105 is wound in terminal pins 104, and after soldering, the conductive pattern portion of terminal pins 104 and circuit substrate 106 is by soldering.Like this, just need twice soldering, thus exist assembling to complicate, the problem that cost uprises.

Therefore, motor of the present invention comprises stator and the rotor that is arranged on the inside of stator.Stator comprises stator core, forms the insulating part of insulating barrier on the surface of stator core, across insulating part package in the coiling in the outside of stator core, be arranged at the insulating part terminal base of insulating part, be uprightly arranged at the terminal pins of insulating part terminal base and be fixed on the circuit substrate of insulating part.At circuit substrate, be provided with the big or small through hole that the terminal pins of the coiling end that allows to be wound with coiling is passed through.And circuit substrate is fixed on insulating part simultaneously, terminal pins connects through hole, and the conductive pattern portion of coiling end, terminal pins and circuit substrate is electrically connected to by soldering.

This motor is for coiling end is wound in to terminal pins, so significantly stenosis is little for required insulating part terminal base and the space between circuit substrate.Therefore, can realize the slimming of motor and the miniaturization of air purifier.

In addition, be wound with the terminal pins of coiling end by through hole, so the conductive pattern portion of coiling end, terminal pins and circuit substrate is carried out soldering simultaneously.Thus, the assembling of motor becomes simple, and can also shorten the length of terminal pins, so cost.

Accompanying drawing explanation

Fig. 1 is the sectional view of the motor of embodiments of the present invention.

Fig. 2 is fixed to the stereogram before the insulating part of this motor by circuit substrate.

Fig. 3 is the partial section of this motor.

Fig. 4 is the vertical view before the die casting of this motor.

Fig. 5 is the sectional view of the motor of prior art.

Embodiment

Below, with reference to accompanying drawing, embodiments of the present invention are described.

(execution mode)

Fig. 1 is the sectional view of the motor of embodiments of the present invention.In addition, if describe hatching on die casting body 7, figure can complicate, so do not describe hatching on die casting body 7.

As shown in Figure 1, motor 1 comprises stator 8 and the rotor 9 rotating freely by bearing 10.Rotor 9 comprises rotating shaft 9a and rotary body 9b in addition.Stator 8 comprises stator core 2, insulating part 3, coiling 5, insulating part terminal base 11, terminal pins 6 and circuit substrate 4.Stator core 2 is laminated with the flat board that polylith comprises magnetic material.Insulating part 3 is the surperficial insulating barriers that are formed at stator core 2.And, at stator core 2, across insulating part 3 packages, there is U phase, V phase, the W coiling 5 of this three-phase mutually.That is, coiling 5 is arranged on the outside of stator core 2.Peripheral part at insulating part 3 is provided with as the insulating part terminal base 11 from the outstanding protuberance of insulating part 3.At insulating part terminal base 11, be uniformly-spaced provided with terminal pins 6.In terminal pins 6, be wound with coiling end 5a.

Fig. 2 is the stereogram before the insulating part that circuit substrate is fixed on to motor of embodiments of the present invention.As shown in Figure 2, at insulating part 3, at a side's of the stacked direction of stator core 2 end face, from axial restraint, there is circular circuit substrate 4.Near the peripheral part of circuit substrate 4, be provided with three through holes 12.Through hole 12 is arranged at the position on the top of butt terminal pins 6 when fixed insulation part 3 and circuit substrate 4.In addition, the size that through hole 12 all can pass through for being wound with each terminal pins 6 of coiling end 5a.

In addition, circuit substrate 4, with the face of stator core 2 opposition sides, be provided with conductive pattern portion (not shown).After the coiling 5 of stator core 2 coiling three-phases, the coiling end 5a of three-phase respectively several packages of enclosing the land in the terminal pins 6 that is positioned at hithermost position.And circuit substrate 4 is fixed on insulating part 3, the terminal pins 6 of three-phase is by through hole 12 simultaneously, and the conductive pattern portion of coiling end 5a, terminal pins 6 and circuit substrate 4 is electrically connected to by the solder 14 of Fig. 1.

Under this state, stator core 2, insulating part 3, coiling 5 and circuit substrate 4 are installed on mould, and thermosetting resin is injected into, thus the die casting body 7 of shaping Fig. 1.Herein, the die casting body 7 shown in Fig. 1, in circuit substrate 4 parts, is stretching out with the direction of rotating shaft 9a quadrature with flange shape.At this flange portion, be provided with the screwed hole (not shown) for fixed motor 1.Like this, stator core 2, insulating part 3, coiling 5 and circuit substrate 4, by the integrated die casting body 7 that forms of resin die casting, become stator 8.

As shown in Figure 1, stator 8 is at the central part of the stacked direction of stator core 2, to be provided with the concave shape of peristome 8a.From peristome 8a, insert by bearing 10 rotations rotor 9 freely, stator 8 keeps fixing with bearing 10.Herein, bearing 10 is pressed into rotating shaft 9a.Rotary body 9b is arranged at the inner circumferential side of stator 8, the motor 1 of transition in forming.

Fig. 3 is the partial section of the motor of embodiments of the present invention.As shown in Figure 3, at insulating part 3, be provided with the inclined-plane (slope) 13 from a side of the coiling 5 in the outside of stator core 2 to a side of the stator core 2 of through hole 12.

Fig. 4 is the vertical view before the die casting of motor of embodiments of the present invention.As shown in Figure 4, upper end, inclined-plane 15 at the insulating part 3 of Fig. 3 with circuit substrate 4 fixedly time, be arranged at through hole 12 under position.In addition, terminal pins 6 is uprightly arranged near upper end, inclined-plane 15.And coiling 5 is after inclined-plane 13 cablings, coiling end 5a is wound in each terminal pins 6.

In addition, as shown in Figure 3, insulating part 3 is fixed simultaneously with circuit substrate 4, is wound with the terminal pins 6 of coiling end 5a by through hole 12.And the conductive pattern portion of coiling end 5a, terminal pins 6 and circuit substrate 4 is electrically connected to by solder 14.At circuit substrate 4, be fixed on shown in Fig. 3 insulating part 3 time, the first distance 16 of inclined-plane 13 and through hole 12 ends be greater than be represented by dotted lines inclined-plane 13 is not set time the upper end 11a of insulating part terminal base 11 and the second distance 17 of through hole 12 ends.Like this, by inclined-plane 13 is set, when circuit substrate 4 is fixed on insulating part 3, the edge of through hole 12 is difficult to contact with the coiling 5 of going to terminal pins 6, effectively prevents broken string (opening circuit).

In addition, as shown in Figure 4, through hole 12 is ellipses long on the radially 4a of circular circuit substrate 4.Terminal pins 6 is arranged at than the through hole center 12a of through hole 12 and more leans on the position of the stator outer circumferential side 8a of stator 8.Thus because through hole 12 be shaped as longer ellipse on the radially 4a of circuit substrate 4, so the distance 16 of first when the insulating part 3 shown in Fig. 3 and circuit substrate 4 are fixed is larger when circular.Like this, at insulating part 3 with circuit substrate 4 fixedly time, the edge of through hole 12 be positioned at through hole 12 under coiling 5 be difficult to contact, effectively prevent from breaking.In addition, in the present embodiment, through hole 12 be shaped as ellipse, but so long as on 4a radially long shape, also can adopt Long Circle.

By adopting this structure, the coiling end 5a shown in Fig. 3 is wound in terminal pins 6, so required insulating part terminal base 11 and the space between circuit substrate 4 significantly dwindle, can realize the slimming of motor 1 and the miniaturization of air purifier.

In addition, as shown in Figure 3, be wound with each terminal pins 6 of coiling end 5a all by through hole 12, so the soldering of the conductive pattern portion of can wind the line end 5a, terminal pins 6 and circuit substrate 4 (with solder 14) simultaneously.Thus, the assembling of motor 1 becomes simple, and then can also shorten the length of terminal pins 6, so cost is reduced.

Claims

1. a motor, is characterized in that, comprising:

Stator; With

Be arranged at the rotor of the inside of described stator,

Described stator comprises:

Stator core;

On the surface of described stator core, form the insulating part of insulating barrier;

Across described insulating part package in the coiling in the outside of described stator core;

Be arranged at the insulating part terminal base of described insulating part;

Uprightly be arranged at the terminal pins of described insulating part terminal base; With

Be fixed on the circuit substrate of described insulating part,

At described circuit substrate, be provided with the big or small through hole that the described terminal pins of the coiling end that allows to be wound with described coiling is passed through,

Described circuit substrate is fixed on described insulating part, and described terminal pins connects described through hole simultaneously, and the conductive pattern portion of described coiling end, described terminal pins and described circuit substrate is electrically connected to by soldering.

2. motor as claimed in claim 1, is characterized in that:

At described insulating part, be provided with the inclined-plane from a side of the described coiling in the outside of described stator to a side of the described stator core of described through hole,

Described coiling, at described inclined-plane cabling, is then wound in described terminal pins.

3. motor as claimed in claim 2, is characterized in that:

Described through hole is oval, and its footpath at the described circuit substrate of circle is upwards longer, and described terminal pins is arranged on than the through hole center of described through hole and more leans on the position of the stator outer circumferential side of described stator.