CN102373605A

CN102373605A - Washing machine

Info

Publication number: CN102373605A
Application number: CN2011102407127A
Authority: CN
Inventors: 井泽浩一; 金田至功; 久野功二
Original assignee: Toshiba Corp; Toshiba Consumer Electronics Holdings Corp; Toshiba Home Appliances Corp
Current assignee: Toshiba Corp; Toshiba Lifestyle Products and Services Corp
Priority date: 2010-08-23
Filing date: 2011-08-22
Publication date: 2012-03-14
Anticipated expiration: 2031-08-22
Also published as: CN102373605B; KR20120022646A; KR101236001B1; TW201215734A; TWI452195B; JP5349424B2; JP2012040296A

Abstract

The present invention provides a washing machine for preventing the electric insulativity between a coil and a cylinder body of a damper to reduce. The washing machine is provided with the damper for supporting and anti-vibrating a water tank. The damper is provided with the cylinder body with a conducting wire lead-out hole; a formed coil unit accommodated inside the cylinder body and formed by molding a coil for generating a magnetic field and a magnetic yoke for inducing the coil with resin, and provided with a through hole extending along the axial direction; a shaft for repeatedly moving and inserting into the through holes; a magnetorheological fluid filled inside a gap between the shaft and the yoke, and the stickiness changes along the change of the magnetic field; a conducting wire of the coil guided out from the formed coil unit and led out from the conducting wire lead-out hole to the external part of the cylinder body; and damp proof materials are arranged on a part of the conducting wire, which passes through the conducting lead-out hole from the formed coil unit, thus the waterproof effect can be realized.

Description

Washing machine

Technical field

Embodiment of the present invention relates to washing machine.

Background technology

Washing machine; For example tumbling-box washing machine has following formation; Possess the tank that is equipped with cylinder in inside and the damper (suspension) that is used for this tank is carried out the vibrationproof supporting in the enclosure, reduce the vibration of the tank that the rotation along with cylinder causes through above-mentioned damper.

And, with regard to damper, in order to improve the vibrationproof performance, the known magneto-rheological fluid that viscosity changes along with the variation in magnetic field (MR fluid) that has used.In using the structure of this magneto-rheological fluid, for example in cylinder body, set and be used to produce in the coil in magnetic field, but reciprocating motion ground be provided with axial this coil of perforation spool, and between this axle and coil, fill magneto-rheological fluid.

Technical literature formerly

Patent documentation

Patent documentation 1: TOHKEMY 2010-104578 communique

Summary of the invention

But; In the structure that constitutes as stated, (washing machine in) immerses water in shell takes place, or the interior moisture of shell uprises and during dewfall; For example possibly take place that water is immersed in the cylinder body from the lead outlet of drawing winding wire, thereby reduce the electrical insulating property between coil and the cylinder body.

Therefore, a kind of washing machine that can prevent that the electrical insulating property between coil in the damper that has used magneto-rheological fluid and the cylinder body from reducing is provided.

The washing machine of this embodiment possesses the damper that tank is carried out the vibrationproof supporting, and above-mentioned damper possesses: cylinder body has the lead outlet; The formed coil unit is housed in the above-mentioned cylinder body, will produce the coil in magnetic field and be used to induce the yoke moulding in the magnetic field of this coil to form through using resin, and be formed with the through hole that extends vertically; The axle, but reciprocating motion be inserted in the above-mentioned through hole; Magneto-rheological fluid is filled in the gap between this and the above-mentioned yoke, and viscosity changes along with the variation in magnetic field; The outside of above-mentioned cylinder body is derived and led to from above-mentioned lead outlet to the lead of above-mentioned coil from above-mentioned formed coil unit; Wherein, in above-mentioned lead, on the part of above-mentioned formed coil unit, implemented WATER REPELLENT TREATMENT through damp-proof material through the above-mentioned lead outlet of above-mentioned cylinder body.

Thus, can prevent coil and the reduction of the electrical insulating property between the cylinder body in the damper that has used magneto-rheological fluid.

Description of drawings

Fig. 1 is the longitudinal section of the suspension in this embodiment.

Fig. 2 is the amplification longitudinal section of major part.

Fig. 3 is the stereoscopic figure of suspension.

Fig. 4 is the stereoscopic figure of formed coil unit.

Fig. 5 is the longitudinal section of formed coil unit.

Fig. 6 is the front elevation of pars intermedia yoke.

Fig. 7 is the stereogram that is illustrated in the configuration relation between the lead of pars intermedia yoke and coil before the moulding.

Fig. 8 is the vertical profile side view of the summary structure of tumbling-box washing machine.

Reference numeral

1: shell 6: tank 7: suspension 8: motor 10: cylinder (swivelling chute)

23: damper 24: helical spring 25: cylinder body 26: axle 28: attaching parts

32: go up part connecting part 38: lower bearing box 41: bearing

42: upper bearing box (bearing box) 43: ditch portion 44: the 45:O of filleting portion shape ring

46: bearing 47: friction means 50: formed coil unit 51: the bottom yoke

53: the first bobbins 54 of 52: the first coils: 55: the second coils of pars intermedia yoke

Bobbin 57 in 56: the second: top yoke 58: resin 59: seal member

61: through hole 64: recess 65: lead 77: damp-proof material 80: magneto-rheological fluid

82: lead outlet 83: lining 83a: lead inserting hole 84: cornice portion

The specific embodiment

Below, be applicable to the embodiment of tumbling-box washing machine with reference to description of drawings.At first, in Fig. 8 of the summary structure that tumbling-box washing machine is shown,, when being formed with washings gateway 2, be provided with the door 3 that opens and closes this washings gateway 2 in the substantial middle portion of the front face (right side of Fig. 8) of the shell 1 that forms the washing machine shell layer.

Top at shell 1 front face is provided with guidance panel 4, and (in the shell 1) is provided with the control device 5 of operation control usefulness in its inboard.

Be equipped with tank 6 in the inside of shell 1.This tank 6 have direction of principal axis point to before and after the transverse axis of (in Fig. 8, being a right left side) cylindric, the state that tilts through side direction before the suspension 7 of pairing left and right (only illustrating) by elastic bearing on the base plate 1a of shell 1.Have, the detailed structure of suspension 7 is explained below again.

At the back of tank 6 motor 8 is installed.This motor 8 is for example to be made up of dc brushless motor, belongs to outer-rotor type, is installed in the not shown rotating shaft of this rotor 8a central part, inserts the inside that passes to tank 6 via bearing block 9.

Be equipped with cylinder 10 in the inside of tank 6.It is that the transverse axis of fore-and-aft direction is cylindric that this cylinder 10 also is direction of principal axis, is connected through the central part with these cylinder 10 rear portions on the leading section of rotating shaft of motor 8, thereby is supported with and the acclivitous state in front side coaxial with tank 6.

Cylinder 10 directly rotates through motor 8, so cylinder 10 is swivelling chutes, motor 8 plays a role as the drum drive that makes cylinder 10 rotations.

On all sidepieces (main part) of cylinder 10, but be formed with the aperture 11 that a plurality of water flowings are ventilated.For this, tank 6 constitutes the structure of the capable of storing water of basic aporate.These cylinders 10 and tank 6 all have peristome 12,13 in front, and the flexible capsule 14 of ring-type is installed between the peristome 13 of tank 6 wherein and the washings gateway 2.

Thus, washings gateway 2 is connected to the inside of cylinder 10 through flexible capsule 14, the peristome 13 of tank 6 and the peristome 12 of cylinder 10.

Minimum position at the tank 6 of capable of storing water is connected with drainpipe 16 through draining valve 15 halfway, thereby the water in the tank 6 can be discharged outside machine through this drainpipe 16.To top and the place ahead, be equipped with drying device 17 from the rear side of this tank 6.

This drying device 17 is made up of dehumidifier 18, pressure fan 19, heater 20 and circulation airduct 21; And dehumidify by 18 pairs of the dehumidifiers airborne moisture that (in the cylinder 10) discharges in tank 6; Then generate dry wind by heater 20 these air of heating; And make this dry wind return (in the cylinder 10) in the tank 6, through carrying out above-mentioned circulation repeatedly, drying is housed in the washings in the cylinder 10.

Secondly, the structure of above-mentioned suspension 7 is described with reference to Fig. 1～Fig. 7.Like Fig. 1 and shown in Figure 3, the helical spring 24 that suspension 7 has damper 23 and is made up of compression helical spring.Wherein, damper 23 possesses the axle 26 that is cylinder body 25 cylindraceous and extends at above-below direction along this cylinder body 25 that extends to above-below direction, and the bottom of axle 26 can be inserted in the cylinder body 25 at above-below direction with moving back and forth.

On bottom, be provided with attaching parts 28 as the axial end of cylinder body 25.These attaching parts 28 have integratedly cap 28a with from this cap 28a outstanding downwards be connected axial region 28b; (TIG welding) interior perimembranous at cylinder body 25 is also welded with the peripheral part of this cap 28a by the lower ending opening portion that is entrenched in cylinder body 25 through general cap 28a wherein, thereby attaching parts 28 are fixedly mounted on the cylinder body 25.

Connection axial region 28b through with attaching parts 28 is fastened on the installing component 29 (with reference to Fig. 8) on the base plate 1a that is fixed in shell 1 with nut 31 across elasticity seat boards such as rubber 30 grades, thereby cylinder body 25 is connected on the installing component 29 of base plate 1a side.

Be connected with part connecting part 32 in the upper end of axle 26.Through going up the connection axial region 32a of part connecting part 32, axial region 28b is same with being connected, and is fastened on across elasticity seat boards such as rubber 34 grades with nut 35 on the installing component 33 of tank 6 (with reference to Fig. 8), thereby axle 26 is connected on the installing component 33 of tank 6 sides.

The chimeric spring support 36 that is fixed with is equipped with helical spring 24 between the upper end of this spring support 36 and cylinder body 25 in the bottom of last part connecting part 32, and this helical spring 24 is mounted with the state around axle 26.

The pars intermedia of the above-below direction in cylinder body 25 contains lower bearing box 38 in the form of a ring.On the peripheral part of this lower bearing box 38, be formed with the ditch portion 39 of extending, through making in cylinder body 25 surrounding wall portion, thereby lower bearing box 38 be fixed in the cylinder body 25 corresponding to the part of ditch portion 39 filleting to the inside to circumferencial direction.

With filleting part as filleting portion 40.Also have, the place at the peripheral part of lower bearing box 38 is formed with the 39a of ditch portion (with reference to Fig. 1) that axially opens.

In the interior perimembranous of lower bearing box 38, take in the bearing 41 that is fixed with ring-type, this bearing 41 is supporting axle 26 in the reciprocating mode of direction of principal axis (above-below direction).Bearing 41 for example is made up of the sintered oil-retaining metal.

Anti drop-off parts 26a is installed in the bottom of axle 26, and through the following butt of this anti drop-off parts 26a and lower bearing box 38, axes 26 moves to the top.

Inside in the upper end of axial the other end of conduct of cylinder body 25 also contains upper bearing box 42 in the form of a ring.In this upper bearing box 42, have the tube portion 42b of outside dimension on the top of upper bearing box 42, and between this bottom 42a and the 42b of tube portion, be formed with stage portion 42c less than bottom 42a.The 42b of tube portion is outstanding to the top from cylinder body 25.

On the peripheral part of the bottom of this upper bearing box 42 42a, as shown in Figure 2, along full week being formed with ditch portion 43, through making in cylinder body 25 surrounding wall portion, thereby upper bearing box 42 is fixed on the upper end of cylinder body 25 corresponding to the part of ditch portion 43 filleting to the inside.With filleting part as filleting portion 44.

At this moment, filleting portion 44 is located on full week through the rolling filleting.In ditch portion 43 O shape ring 45 is installed, this O shape ring 45 by cramping between the filleting portion 44 of the ditch portion 43 of upper bearing box 42 and cylinder body 25.

The bottom of helical spring 24 is supported by the stage portion 42c of upper bearing box 42.On the top of the interior perimembranous of upper bearing box 42, take in the bearing 46 that is fixed with ring-type, this bearing 46 is so that the mode back shaft 26 that axle 26 can move back and forth at direction of principal axis (above-below direction).This bearing 46 also bearing 41 with the bottom is identical, for example is made up of the sintered oil-retaining metal.

In the interior perimembranous of upper bearing box 42, take in friction means 47 in the form of a ring at the downside of bearing 46 to be pressed into state, the interior perimembranous of this friction means 47 is crimped on the outer peripheral face of axle 26 slidably.

In cylinder body 25, the part between lower bearing box 38 and upper bearing box 42 contains formed coil unit 50.This formed coil unit 50 is to be fixed by the state of

lower bearing box

38 and 42 clampings of upper bearing box.

Like Fig. 1, Fig. 4, shown in Figure 5, formed coil unit 50 has: bottom yoke 51; First bobbin 53 is used for package first coil 52; Pars intermedia yoke 54; Second bobbin 56 is used for package second coil 55; Top yoke 57; Molding resin 58 is used for these parts integrated.

With regard to resin 58, use for example thermoplastic resin (nylon, PBT, PET, PP etc.).As on the bottom yoke 51 at the axial both ends of formed coil unit 50 and the top yoke 57, seal member 59 in the form of a ring is installed to be pressed into state.

These seal members 59 use and friction means 47 identical materials, and interior perimembranous is crimped on the outer peripheral face of axle 26 slidably.

Formed coil unit 50 has the through hole 61 that axially connects at central portion, and it is cylindric that integral body is, and in this through hole 61, can on direction of principal axis, be inserted with to reciprocating motion axle 26.

On the peripheral part of formed coil unit 50; Be formed with the ditch portion 62 of axially extending; And be formed with the recess 63 that in this ditch portion 62, is positioned at the circle on the position corresponding with pars intermedia yoke 54, with the rectangular-shaped recess 64 that is connected to circumferencial direction from this recess 63.Each

yoke

51,57,54 plays the effect of inducing coil magnetic field.

Derive two leads 65 that first coil 52 and second coil 55 are arranged to the outside from rectangular-shaped recess 64 wherein.As shown in Figure 5, the radicle of each lead 65 connects the end plate of pairing

bobbin

53,56 and is connected the end of each

coil

52,55, and is covered by resin 58.

Each lead 65 is covered by the pipe 65a of resin manufacture around the lead.

At this, on pars intermedia yoke 54,, in a place of peripheral part, be formed with ditch portion 68 like Fig. 6 and shown in Figure 7, this ditch portion 68 has conductor configurations ditch 66 and overlap joint line configuration ditch 67.Conductor configurations ditch 66 is open-minded to the direction of principal axis of pars intermedia yoke 54 with overlap joint line configuration ditch 67.

Central portion in ditch portion 68 is formed with the inlet 69 that the screw hole by circle constitutes, and on this inlet 69, the columned screw 70 (with reference to Fig. 4) that has hexagonal recess 70a at end face is installed.Inlet 69 is to be used to inject magneto-rheological fluid described below.

Also have, as shown in Figure 6, on the peripheral part of pars intermedia yoke 54, be formed with the width ditch portion 71 narrower at three places than ditch portion 68.On pars intermedia yoke 54, be formed with a plurality of locating holes 72, this locating hole 72 is used to determine the position of first and

second bobbin

53,56.

First coil 52 and second coil 55 are connected in series by overlap joint line 73 (with reference to Fig. 7).Be connected a lead 65 on first coil 52 and be connected a lead 65 on second coil 55, derive to the outside from formed coil unit 50 with the mode that is described below.

Just, used lead guiding parts 74 as shown in Figure 7.Lead guiding parts 74 is by the synthetic resin manufacturing; Section

the word shape that is an end opening; Have two holes 75 and separate the partitions 76 in these holes 75.

Two leads 65 are inserted in the hole 75 of lead guiding parts 74 respectively and bend under the state of L word shape; Lead guiding parts 74 is configured in the conductor configurations ditch 66 of pars intermedia yoke 54; And; Overlap joint line 73 is configured under the state in the overlap joint line configuration ditch 67 also potting resin 58 in these conductor configurations ditches 66 and overlap joint line configuration ditch 67.Resin 58 also is filled in the lead guiding parts 74 (with reference to Fig. 5).

As shown in Figure 4, under the state that two leads 65 are covered by resin 58 with radicle, export to the outside of formed coil unit 50 from recess 64.Also be filled with resin 58 in other ditch portion 71 of pars intermedia yoke 54.Part in the peripheral part of pars intermedia yoke 54 except

ditch portion

68,71 is exposed from resin 58.

In formed coil unit 50; Through at recess 64 as the derivation of two leads 65 part; The damp-proof material 77 that embedding is for example formed by silicone (with reference to Fig. 1, Fig. 2, Fig. 4, Fig. 5); Be filled to the inboard of lead guiding parts 74 and in the whole recess 64 of landfill, can stablize the position of lead 56 for external force and carry out WATER REPELLENT TREATMENT simultaneously through damp-proof material 77.

At this, be illustrated as the internal diameter size of the through hole 61 of molded lines coil unit 50.As shown in Figure 5, the internal diameter size of three

yokes

51,54,57 on bottom, pars intermedia and top is set at same size, and and forms the for example gap about 0.4mm 78 between the outer peripheral face of axle 26.

The internal diameter size of first and second two

bobbins

53,56 is set at same size, and size is set at the internal diameter size that is a bit larger tham three

yokes

51,54,57, and and forms the for example gap about 1.0mm 79 between the outer peripheral face of axle 26.

And, the gap 78 between the inner peripheral surface of the outer peripheral face of axle 26 and above-mentioned three

yokes

51,54,57, and in the gap 79 between the inner peripheral surface of the outer peripheral face of axle 26 and above-mentioned two

bobbins

53,56, be injected with magneto-rheological fluid 80.

Have, magneto-rheological fluid 80 also is infused in the inboard of seal member 59 up and down again.This magneto-rheological fluid 80, from inlet 69 injections of formed coil unit 50, and this inlet 69 is by screw 70 sealings.

Magneto-rheological fluid 80 is for example ferromagnetism particles such as iron, carbonyl iron to be dispersed in the oil and to constitute, and has when the magnetic viscosity fluid is applied magnetic field, and ferromagnetic particles forms the group bunch (cluster) of chain, thus the characteristic that apparent viscosity is risen.

At this moment, the bottom of formed coil unit 50 and the seal member on top 59, and the friction means 47 of upper bearing box 42, play prevent magneto-rheological fluid 80 to the effect of external leaks and utilize with axle 26 between the frcition damper effect of friction of generation.

In addition; As shown in Figure 5; Between the bottom yoke 51 and first bobbin 53, between first bobbin 53 and the pars intermedia yoke 54, between pars intermedia yoke 54 and second bobbin 56 and between second bobbin 56 and the top yoke 57, be respectively equipped with the O shape ring 81 of sealing usefulness.These O shapes encircle 81, also have to prevent the function of magneto-rheological fluid 80 to external leaks.

Axial pars intermedia in cylinder body 25 surrounding wall portion in the position corresponding to circular depressions 63 (with reference to Fig. 4), is formed with the lead outlet 82 (with reference to Fig. 1, Fig. 2) that is made up of circular hole

On this lead outlet 82, chimeric have a lining 83 with lead inserting hole 83a, and above-mentioned two leads 56 are drawn to the outside through the lead inserting hole 83a of this lining 83.At this moment, lining 83 uses resin, the for example product of nylon system.

On the peripheral part of cylinder body 25, be provided with the lambdoid cornice portion 84 that is positioned at lining 83 tops (top of lead outlet 82).This cornice portion 84 is bonded on the outer peripheral face of cylinder body 25 by jointing material.This cornice portion 84 is used to prevent that the water from the top is immersed in the cylinder body 25 through lead outlet 82 (lead inserting hole 83a).

In addition, on the peripheral part of cylinder body 25, wiring fixed part 85 (with reference to Fig. 3) is installed, and keeps being drawn out to the lead 65 of cylinder body 25 outsides through being located at cloth wire maintainer 86 on this wiring fixed part 85.

Have again, in cylinder body 25, between the cap 28a and lower bearing box 38 of attaching parts 28, be formed with spatial portion 88 (with reference to Fig. 1).

Secondly, the assembling process of the suspension 7 with above-mentioned formation is described.In advance, on an end of the cylinder body 25 of axial both ends opening, the cap 28a of the parts 28 that are fixedly connected by welding.

Then; In the position different with cylinder body 25; On the peripheral part of axle 26; With the lower bearing box 38 that contains bearing 41, on axial both ends, be equipped with seal member 59 formed coil unit 50, contain the chimeric and assembling of the upper bearing box 42 of friction means 47 and bearing 46 in, at the leading section of axle 26 anti drop-off parts 26a is installed, and they is positioned.

At this moment, will be in the aligned in position of 39a of ditch portion that axially opens on the peripheral part of lower bearing box 38 and the ditch portion 62 of axially extending on the peripheral part of formed coil unit 50.And, in the ditch portion 43 of the peripheral part of upper bearing box 42 O shapes ring 45 is installed.

Secondly, inject magneto-rheological fluid 80 from inlet 69.Magneto-rheological fluid 80 is injected in the

gap

78,79 between the inner peripheral surface of axle 26 outer peripheral face and formed coil unit 50, the inboard of the seal member 59 about also being injected into.Inject after the magneto-rheological fluid 80, mounting screw 70 on the inlet 69, thus sealing inlet 69.

Secondly, will be from the formed coil unit leading section of 50 leads 65 of deriving, insert from the open upper end portion of cylinder body 25, and use not shown hanger, the leading section of this lead 65 is drawn out to the outside of cylinder body 25 from the lead outlet 82 of cylinder body 25.At this moment, on the lead outlet 82 lining 83 is not installed.

Secondly; Lead 65 is configured in the ditch portion 62 of the 39a of ditch portion and formed coil unit 50 of lower bearing box 38; So that lead 65 is in not from the outstanding state (with reference to Fig. 4) of the outer peripheral face of lower bearing box 38 and formed coil unit 50; To be assembled in lower bearing box 38, formed coil unit 50 and the upper bearing box 42 of axle on 26 then,, be inserted in the cylinder body 25 from the open upper end portion of cylinder body 25 with axle 26.Along with these being inserted in cylinder bodies 25, progressively lead 65 is drawn to the outside.

Secondly; Under the state of the location of having carried out 42 pairs of cylinder bodies 25 of upper bearing box; Through on the peripheral part of the upper end side of cylinder body 25 with the ditch portion 43 corresponding positions of upper bearing box 42 filleting that rolls, so that filleting portion 44 to be set, thereby upper bearing box 42 is fixed on the top of cylinder body 25.

Filleting is carried out at ditch portion 39 corresponding positions through to the peripheral part of the peripheral part up and down portion bearing box 38 of the axial pars intermedia of cylinder body 25, so that filleting portion 40 to be set, thereby lower bearing box 38 is fixed on the pars intermedia in the cylinder body 25.

Secondly; Cylinder body 25 and axle 26 are under the state of horizontal (approximate horizontal state); At lead outlet 82 from cylinder body 25; Use utensil (not shown), the recess 64 part embeddings of deriving the rectangle of part as lead 65 are had mobile slightly damp-proof material 77, thereby cover the derivation part (with reference to Fig. 4) of lead 65 by this damp-proof material 77 like entry needle.

Damp-proof material 77 uses for example silicone.At this moment, in order to prevent that damp-proof material 77 to the outside of recess 64, for example to the recess 63 or 62 outflows of ditch portion of circle, preferably making the recess 64 of rectangle be in downside.Through placing with this state and making damp-proof material 77 sclerosis carry out WATER REPELLENT TREATMENT.

Then; With 65 slotting leading in the lead inserting hole 83a of lining 83 of two leads that lead to cylinder body 25 outsides; And lining 83 is entrenched under the state of peripheral part of two leads 65, thereby this lining 83 is entrenched on the lead outlet 82 of cylinder body 25 (with reference to Fig. 1～Fig. 3) to cylinder body 25 side shiftings.

On the upper end of cylinder body 25, with the mode arrangement of helical springs 24 around axle 26 tops, and in the upper end of axle 26, chimeric fixed spring stent 36 reaches goes up part connecting part 32 then.

Thus, between the upper bearing box 42 and spring support 36 of cylinder body 25 upper ends, helical spring 24 is in compressed state.In addition, on the peripheral part of cylinder body 25, installation wiring fixed part 85 (with reference to Fig. 3) keeps lead 65 through cloth wire maintainer 86.Thus, accomplish the assembling of suspension 7.

The suspension 7 of assembling is provided in the left and right sides of tank 6 like this.And the lead 65 of deriving from each suspension 7 is connected on the not shown drive circuit.First and

second coil

52,55 is switched on through drive circuit and is cut off the power supply control by control device 5.

In above-mentioned formation, the action of the above-mentioned suspension 7 relevant with washing operation is described.At first, imagine the state that first and

second coil

52,55 is not switched on.

When cylinder 10 was driven in rotation in washing stroke or dehydration stroke and dry trip, tank 6 mainly vibrated at above-below direction.Respond the up-down vibration of this tank 6, in suspension 7, the axle 26 that is connected in tank 6 sides moves up and down with respect to the cylinder body 25 of the base plate 1a side that is fixed on shell 1 when making helical spring 24 flexible.

At this moment; Except vibration attenuation effect by this helical spring 24; The frictional resistance that friction means 47 and seal member 59 apply axle 26 all the time is damping force; Simultaneously, apply damping force through the frictional resistance that its viscosity produced, thereby make the amplitude fading of tank 6 at the magneto-rheological fluid 80 of axle 26 and three

yokes

51,54,57 and bobbin 53, filling between 56.

At this, when the vibration of tank 6 further becomes big, the rotary speed of for example cylinder 10 reaches resonance rotational speed (about 100～300rpm) time, first and

second coil

52,55 is energized.

Have, this power on condition is not limited to above-mentioned rotary speed again, also can be, switches on when working as vibration greater than setting value through the vibration of vibration detecting unit detection tank 6.

Then, when satisfying above-mentioned power on condition, when first and

second coil

52,55 is energized, mainly apply magnetic field through

yoke

51,54,57 to magneto-rheological fluid 80, thereby the viscosity of magneto-rheological fluid 80 improves, thus, frictional resistance increases and becomes big.

, through the frictional resistance to axle 26, further increase than above-mentioned situation (situation that first and

second coil

52,55 is not switched on), it is big that damping force becomes like this.Thus, can decay the effectively vibration of tank 6.

Also have, thereby first and

second coil

52,55 produces the viscosity of controlling magneto-rheological fluid 80 with the moving corresponding magnetic field of current value of coil midstream, this magnetic field that is produced can change according to current value, thereby can control the viscosity of magneto-rheological fluid 80 changeably.

On the other hand, in above-mentioned formation, imagination immerses water in shell 1, perhaps produces the situation of dewfall in the shell 1.In suspension 7, because chimeric and be welded with the cap 28a of attaching parts 28 in the lower ending opening portion of cylinder body 25, thus can prevent that sealing is immersed in the cylinder body 25 from the bottom of cylinder body 25.

In addition, owing to upper bearing box 42 arranged in that the open upper end portion of cylinder body 25 is chimeric, along being provided with filleting portion 44 week entirely, and between cylinder body 25 and upper bearing box 42, being provided with O shape and encircling, thereby can prevent that sealing is immersed in the cylinder body 25 from the upper end of cylinder body 25.

And, because the chimeric lining 83 that is equipped with on the lead outlet 82 in cylinder body 25 surrounding wall portion is immersed in the cylinder body 25 through this lead outlet 82 from the outside of cylinder body 25 so can prevent sealing as far as possible.In addition, on cylinder body 25 peripheral parts, be provided with the cornice portion 84 that is positioned at lining 83 tops, so can prevent as far as possible to be immersed in the cylinder body 25 through lead outlet 82 along the water that cylinder body 25 outer peripheral faces flow down.

At this, even imagination is equipped with lining 83 at lead outlet 82 places, cylinder body 25 outside water pass through the gap between lining 83 and the lead outlet 82 or pass through the lead inserting hole 83a of lining 83, are immersed in the cylinder body 25.

In the time of in water immerses cylinder body 25; This water is immersed in the

coil

52,55 that is wrapped on the

bobbin

53,56 through the tolerances between lead 65 outer peripheral faces and the resin 58; Therefore; Connecting portion and particularly pars intermedia yoke 54 between the end of

coil

52,55 and the radicle of lead 65 might form through water and be electrically connected.

And pars intermedia yoke 54 contacts with cylinder body 25, and is electrically connected with the most metal parts that constitute damper 23.Therefore, when water was immersed in the end of this lead 65 and

coil

52,55 through lead 65, the surface (cylinder body 25) of lead 65 and damper 23 was in status of electrically connecting, thereby possibly significantly reduce the electrical insulating property between

coil

52,55 and the cylinder body 25.

This point; In above-mentioned embodiment, on recess 64 in formed coil unit 50, with damp-proof material 77 enforcement WATER REPELLENT TREATMENT as the derivation part of the lead 65 of

coil

52,55; Even water is immersed in the cylinder body 25 through lining 83; Can prevent that also this water is immersed in the connecting portion between the end of radicle and

coil

52,55 of lead 65, thereby can prevent the reduction of the electrical insulating property between

coil

52,55 and the cylinder body 25, can prevent electric shock accidents etc. in advance.

According to above-mentioned embodiment, can obtain following action effect.

From the part of formed coil unit 50, on the recess 64 as the derivation part of lead 65 in formed coil unit 50, implemented WATER REPELLENT TREATMENT at the lead 65 of

coil

52,55 with damp-proof material 77 through the lead outlet 82 of cylinder bodies 25.

According to this formation,, can prevent that also this water is immersed in the connecting portion between the end of radicle and

coil

52,55 and the cylinder body 25 even water is immersed in the cylinder body 25 through lining 83.

At this moment, use the WATER REPELLENT TREATMENT of damp-proof material 77, so long as lead 65 from the formed coil unit 50 parts through the lead outlet 82 of cylinder bodies 25, for example also can locate to implement WATER REPELLENT TREATMENT in lead outlet 82 (lining 83 parts).

Like this embodiment; Use damp-proof material 77 to implement WATER REPELLENT TREATMENT through deriving part, thereby damp-proof material 77 can not be exposed to the outside of cylinder body 25, in addition at the lead 65 of formed coil unit 50; The load that vibration causes be difficult to concentrate on damp-proof material 77 near, so favourable to vibrating.

Because damp-proof material 77 is located at through embedding in the recess 64 that on around the lead 65 derivation parts, is provided with in the formed coil unit 50, therefore, damp-proof material 77 is outstanding and do not hinder other.

Chimeric on the lead outlet 82 of cylinder body 25 have a lining 83, and lead 65 is led to the outside through the lead inserting hole 83a of this lining 83.

According to this formation, through lining 83 being set, compare with the situation that is not provided with lining at lead outlet 82, more can make shipwreck to get in the cylinder body 25 from lead outlet 82.In addition, because lining 83 is by resin manufacture, therefore have the rigidity height, can improve installation strength, good moldability, can the cheap advantage of making.

At the peripheral part of cylinder body 25,, thereby can prevent as far as possible to be immersed in the cylinder body 25 through lead outlet 82 along the water that cylinder body 25 outer peripheral faces flow down because cornice portion 84 is arranged to be positioned at lining 83 tops.

On the bottom as the axial end of cylinder body 25, have attaching parts 28, the cap 28a of cylinder body 25 and attaching parts 28 is through the welding fixed installation, thereby can prevent reliably that sealing is immersed in the cylinder body 25 from the bottom of cylinder body 25.

On upper end as axial the other end of cylinder body 25; But in the time of the bearing of configuration reciprocating motion ground back shaft 26 46; Chimeric configuration is used for the upper bearing box 42 of spring bearing 46, and cylinder body 25 is fixed through the rolling filleting with upper bearing box 42.

Thus, can filleting portion 44 be set, thereby can prevent that sealing is immersed in the cylinder body 25 from the upper end of cylinder body 25 and the junction surface between the upper bearing box 42 in the full week of peripheral part upper edge of cylinder body 25 upper ends.

In addition, between the peripheral part of cylinder body 25 and upper bearing box 42, be provided with O shape ring, thereby can prevent further that sealing is immersed in the cylinder body 25 from the top of cylinder body 25.

Other embodiment

Lining 83 on the chimeric lead outlet 82 that is installed in cylinder body 25 can use rubber system to replace resinous lining 83.When using the lining 83 of rubber system, can prevent to be applied to concentrating of load on the lead 65 as far as possible, favourable to vibrating.And, also have the advantage that can improve to the close property of lead outlet 82.

In formed coil unit 50, it also can be more than three that coil can only be one, and in addition, yoke can be two or more.

Embodiment as washing machine is not limited to tumbling-box washing machine, also can be, when longitudinal type tank inside possesses swivelling chute, in this swivelling chute, possesses the so-called longitudinal type washing machine of stirring body.

According to aforesaid embodiment, through at the lead of coil on the part of formed coil unit through the lead outlet of cylinder body, implement WATER REPELLENT TREATMENT with damp-proof material, can prevent the reduction of the electrical insulating property between coil and the cylinder body.

The present invention has explained several embodiments, and these embodiments are to propose as an example, does not mean at the protection domain that limits invention.These new embodiments can be implemented with other multiple mode, in not departing from the scope of inventing aim, can carry out various omissions, replacement, change.These embodiments or its distortion are contained in the protection domain or aim of invention, also are contained in the invention of putting down in writing in claims and its impartial protection domain.

Claims

1. a washing machine possesses the damper that tank is carried out the vibrationproof supporting, it is characterized in that,

Above-mentioned damper possesses:

Cylinder body has the lead outlet;

The formed coil unit is housed in the above-mentioned cylinder body, will be used to produce the coil in magnetic field and be used to induce the yoke moulding in the magnetic field of this coil to form through using resin, and be formed with the through hole that extends vertically;

The axle, but reciprocating motion be inserted in the above-mentioned through hole;

Magneto-rheological fluid be filled in the gap between this and the above-mentioned yoke, and viscosity changes along with the variation in magnetic field; And

The outside of above-mentioned cylinder body is derived and led to from above-mentioned lead outlet to the lead of above-mentioned coil from above-mentioned formed coil unit;

Wherein, in above-mentioned lead, on the part of above-mentioned formed coil unit, use damp-proof material to implement WATER REPELLENT TREATMENT through the above-mentioned lead outlet of above-mentioned cylinder body.

2. washing machine as claimed in claim 1 is characterized in that,

Above-mentioned damp-proof material is located on the derivation part of the above-mentioned lead in the above-mentioned formed coil unit.

3. washing machine as claimed in claim 2 is characterized in that,

Be provided with recess around the derivation part of the above-mentioned lead in above-mentioned formed coil unit, above-mentioned damp-proof material is potted in the above-mentioned recess.

4. washing machine as claimed in claim 1 is characterized in that,

On an axial end of above-mentioned cylinder body, have attaching parts, above-mentioned cylinder body is fixed by welding in above-mentioned attaching parts.

5. washing machine as claimed in claim 4 is characterized in that,

On axial the other end of above-mentioned cylinder body, but dispose the bearing that reciprocating motion ground supports above-mentioned axle, and the chimeric bearing box that supports above-mentioned bearing that disposes, above-mentioned cylinder body and above-mentioned bearing box are fixed through the rolling filleting.

6. washing machine as claimed in claim 5 is characterized in that,

In the peripheral part of above-mentioned bearing box, be provided with ditch portion, O shape ring be installed in this ditch portion with the chimeric part of above-mentioned cylinder body.

7. washing machine as claimed in claim 1 is characterized in that,

On the above-mentioned lead outlet of above-mentioned cylinder body, chimeric have a resinous lining with lead inserting hole, and above-mentioned lead is led to the outside through above-mentioned lead inserting hole.

8. washing machine as claimed in claim 1 is characterized in that,

On the above-mentioned lead outlet of above-mentioned cylinder body, the chimeric lining that rubber system with lead inserting hole is arranged, above-mentioned lead is led to the outside through above-mentioned lead inserting hole.

9. like claim 7 or 8 described washing machines, it is characterized in that,

Be provided with cornice portion above the above-mentioned lead outlet in the peripheral part of above-mentioned cylinder body.