CN1780089A - Stator of electric motor for washer - Google Patents

Abstract

A stator for the external rotor type induction motor of washer has the upper and lower insulators respectively above and under the stator. Said lower insulator has a parabolic outside to surround the lower winding of iron, so avoiding electric shock and preventing the water from flowing in the winding.

Description

The stator of motor for washer

Technical field

The present invention is the outer rotor type induction motor that the outer bucket downside of washing machine directly is provided with, and particularly guarantees the fail safe of motor about improving motor stator structure, can prevent the stator of motor for washer of the winding damage of stator.

Background technology

General washing machine is dirt on the clothes that utilizes the effect of water and washing agent to remove to be housed in the tube, the bedding etc. (below be called washings) and the device by the clean washings of processes such as washing, rinsing, dehydration, oven dry.

Fig. 1 is the washing machine profile of background technology motor, and Fig. 2 is the exploded perspective view according to the motor for washer of background technology.

Washing machine in the past as shown in Figure 1, comprise the casing 2 that forms the washing machine outward appearance, the inside of casing 2 hangs over support component 4a and goes up the outer bucket 4 of fixing and accommodating washings, can be rotatably set in inner and its bottom surface of outer bucket 4 and be provided with the interior bucket 8 that impeller 6 and side are formed with the water hole, be arranged on outer bucket 4 downsides and produce impeller 6 and the motor 30 of the actuating force of interior bucket 8, bucket 4 lower central are provided with the motor 30 and the bearing shell 10 of support motor 30 rotating shafts 36 rotatably in conjunction with fixing top and bottom outside, are arranged between bearing shell 10 and the motor 30 and give impeller 6 and interior barrel of 8 clutches 20 of supplying with motor 30 actuating forces selectively constitute.

Here, outer barrel 4 bottoms are provided with the drainage arrangement 12 that the washings of outer bucket 4 storages are discharged to the washing machine outside.

Drainage arrangement 12 comprises by an end and is communicated with bucket 4 discharge outlet 4b outside and the water discharging valve 14 that is provided with, the drain motor 16 that barrel 4 bottom surfaces and adjusting water discharging valve 14 open and close outside being arranged on is communicated with setting and passes through scupper hose 18 formations of the washings of water discharging valve 14 discharges to the washing machine exterior guiding with the other end of water discharging valve 14.

Bearing shell 10 is installed in outer bucket 4 lower central, and its underpart is provided with motor 30.Bearing shell 10 is provided with the rotating shaft 36 of motor 30 in the above with following perforation, its inside is provided with the rotatably bearing 10a of support motor 30 rotating shafts 36.

Motor 30 uses the brshless DC motor of external-rotor-types, and brshless DC motor 30 can be controlled the speed of motor 30 by adjusting the DC power supply of supplying with, and impeller 6 or interior bucket 8 can rotate with multiple friction speed under the effect of motor 30.

Motor 30 rotating shafts 36 comprise by bucket 8 in the connection of upper end, the dehydrating shaft 36a of inner hollow; The hollow inner side of dehydrating shaft 36a rotatably is provided with the bottom and connects motor 30, and the wash shaft 36b that the upper end connects impeller 6 constitutes.

Clutch mechanism 20 comprises by the connection brake 22 that is fixedly mounted on bearing shell 10 bottom surfaces, in order to endwisely slip at the clutch connector 24 of the bottom of dehydrating shaft 36a spline combination, one side is connected clutch connector 24 and in order to make clutch connector 24 some engagements and axially promote the clutch lever 26 of clutch connector 24 with motor 30 and in being connected brake 22, is installed in clutch motor 28 formations of the opposite side operated clutch declutcher control lever 26 of clutch lever 26.

Be formed with the 1st clutch gear 24a that the 2nd clutch gear 44a with motor 30 meshes selectively below the clutch connector 24, be formed with the 1st fixed gear 24b that meshes selectively with the 2nd fixed gear 22a that connects brake 22 above it.

Therefore, if clutch connector 24 descends under the effect of clutch lever 26, then the 1st clutch gear 24a and the 2nd clutch gear 44a engagement is so transmit power from motor 30 to dehydrating shaft 36a; If clutch connector 24 rises under clutch lever 26 effects, then the 1st fixed gear 24b and the 2nd fixed gear 22a engagement is so can not transmit power to dehydrating shaft 36a from motor 30.

The washing machine of Gou Chenging like this, after 30 li conducting DC power supply of motor, if above-mentioned clutch connector 24 meshes with connecting brake 22 under the effect of clutch mechanism 20, then the actuating force of motor 30 only transmits to impeller 6 by wash shaft 36b, and the speed control of motor 30 in suitable scope, impeller 6 rotates thus, carries out the washing and the rinse cycle of washings.

After the motor 30 conducting DC power supply, if clutch connector 24 is with motor 30 engagements under the effect of clutch mechanism 20, the actuating force of motor 30 is sent to 8 li in impeller 6 and interior bucket simultaneously by wash shaft 36b and dehydrating shaft 36a, and the speed control of motor 30 at a high speed, so impeller 6 and interior bucket 8 high speed rotating carry out the dehydration of washings.

According to the motor for washer of prior art as shown in Figures 1 and 2, comprise by the stator 32 that is fixedly mounted on bearing shell 10 bottom surfaces; Install and rotor rotated 34 under the electromagnetic force effect of following generation between the stator 32 around the outside of stator 32; The bottom is fixed on the rotor 34, and the rotating shaft 36 that the upper end is fixed on the impeller 6 constitutes.

Stator 32 is by stacked annular unshakable in one's determination 37 of a plurality of iron plates, is wrapped on unshakable in one's determination 37 and with the winding coil 38 that external power source connects to constitute.

Unshakable in one's determination 37 have the insulator 39 of insulation function in the above with following installation, inner circumferential surface is formed with a plurality of joint portion 37a that protrude to the inside around on every side, be formed with combined hole on the 37a of joint portion, unshakable in one's determination 37 utilize set bolt to be fastened on the bottom of bearing shell 10.

Rotor 34 comprises by outer peripheral face that encases stator 32 and the rotor frame 40 that is provided with below, be fixedly mounted on the inner peripheral surface of rotor frame 40 and utilize the electromagnetic force rotor rotated magnet 42 that interacts and produce with between the stator 32, be installed in the following central authorities of rotor frame 40 and fixing rotor axle sleeve 44 formations of rotating shaft 36 bottoms.

Rotor frame 40 forms with the cylindrical structure of opening above, form the axle sleeve fixed part 40a of promising fixed rotor axle sleeve 44 when rotating shaft 36 connect to be installed by central authorities below it, and the distance to a declared goal of being separated by in the outside of axle sleeve fixed part 40a forms a plurality of leg space ventilations hole 40b and lower blade 40c to circumferencial direction.

Lower blade 40c forms in the side of leg space ventilation hole 40b, and leg space ventilation hole 40b and lower blade 40c form more longways to the radial direction of rotor frame 40.

According to rotor frame 40 rotations, suck extraneous air, cooled rotor 34 and stator 32 to the inside of motor 30 by leg space ventilation hole 40b and lower blade 40c.

Rotor magnet 42 is a plurality of permanent magnets that are fixedly mounted on aspectant rotor frame 40 inner peripheral surfaces of stator 32 peripheries, has the space (G) that specifies Spacing between rotor magnet 42 and the stator 32.

Rotor axle sleeve 44 combinations are fixed on the axle sleeve fixed part 40a, and are connected and fixed with the wash shaft 36b bottom of rotating shaft 36.Be formed with the 2nd clutch gear 44a that the 1st clutch gear 24a with clutch connector 24 meshes selectively above the rotor axle sleeve 44.

But, in the stator according to the motor for washer of background technology, insulator 39 be installed in separately unshakable in one's determination 37 top and below, because of on the position that is not installed in winding winding coil 38 or be arranged on the inboard of winding coil 38, so winding coil 38 exposes to the outside of stator 32.

, increased by the danger of input at the power supply generation electric shock accidents of winding coil 38, winding coil 38 may be damaged when the carrying of stator 32 and assembling and repairing thereupon.

Summary of the invention

The present invention provides a kind of structure that changes insulator to prevent that winding coil from exposing to the stator outside for solving the technical problem that exists in the above-mentioned technology, prevent the security incident that causes by electric shock in advance and increase the fail safe of motor, and prevent the stator of the motor for washer of winding coil damage.

The technical scheme that the present invention takes for the technical problem that exists in the above-mentioned technology of solution is:

The stator of motor for washer of the present invention comprises by being arranged on outer bucket and goes up and make its iron core that is installed in the rotor inboard, is wrapped in unshakable in one's determination going up and the winding coil of input ac power; It is characterized in that: be installed in lateral surface unshakable in one's determination, prolong the insulator formation that the one side forms for hiding winding coil simultaneously; Insulator is by the top insulator that is installed in above unshakable in one's determination, be installed in unshakable in one's determination below and prolong the following insulator that outboard end forms and constitute for covering is arranged on winding coil below the periphery unshakable in one's determination; The outboard end of following insulator prolongs formation to the periphery of iron core, thinks that simultaneously the parabolic shape to the downside protuberance is bent to form around being arranged on following winding coil unshakable in one's determination.

Advantage and good effect that the present invention has are: the stator of motor for washer of the present invention, the top insulator of unshakable in one's determination top and following installation separately of stator and the outboard end of following insulator and following insulator are to prolong formation around being arranged on the downward parabolic shape that swells of the following downside winding coil of iron core, so therefore do not expose the security incident that can prevent from advance to get an electric shock and cause, and cut off the fail safe that improves motor from the washings of winding coil side intrusion to the stator outside to winding coil.Winding coil does not expose to the motor outside, prevents the damage of winding coil when carrying and assembling and repairing.

Description of drawings

Fig. 1 is the washing machine profile of background technology motor,

Fig. 2 is the exploded perspective view according to the motor for washer of background technology,

Fig. 3 is the washing machine profile of motor of the present invention,

Fig. 4 is the oblique view of Fig. 3 major part,

Fig. 5 is the profile of Fig. 3 major part,

Fig. 6 is the profile of A-A among Fig. 4,

Fig. 7 is the exploded perspective view according to motor for washer of the present invention,

Fig. 8 is the ground plan of stator among Fig. 7,

Fig. 9 is the profile of B-B among Fig. 8.

Main symbol description

52: casing 54: outer bucket

56: impeller 58: interior bucket

60: motor 62: top cover

64: base 66: water supply installation

70: drainage arrangement 72: water discharging valve

74: drain motor 76: scupper hose

80: power transmission 82: shell

84: drum 86: dehydrating shaft

88: wash shaft 90: brake mechanism

92: brake band 94: brake arm

96: braking motor 100: clutch mechanism

102: connect brake 104: the clutch connector

106: clutch lever 108: clutch motor

110: stator 112: iron core

114: winding coil 116: insulator

120: rotor 122: rotor frame

124: rotor core 126: rotor axle sleeve

130: rotating shaft 140: the leg space ventilation hole

142: lower blade 144: side vents

146: crimping 148: jog

150: upper end ring 151: the lower end ring

152: lead 154: the upside protuberance

155: downside protuberance 156: the hole is confirmed in the space

158: upper blade 160: secure component

162: bolt 164: rivet

Embodiment

For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

Fig. 3 is the washing machine profile of motor of the present invention, and Fig. 4 and Fig. 5 are the oblique view and the profiles of major part among Fig. 3, the profile of A-A in Fig. 6 pictorial image 4.

Extremely shown in Figure 6 according to washing machine of the present invention such as Fig. 3, comprise by the casing 52 that forms outward appearance, supported parts 54a hangs the outer bucket 54 of fixing and holding washings in the inside of casing 52, the interior bucket 58 that is installed in the inside rotation of outer bucket 54 and impeller 56 is installed and is formed with the water hole in the side in the bottom surface, the downside that is installed in outer bucket 54 is produced as the motor 60 that rotating rotary drum 56 reaches the actuating force of interior bucket 58, is installed between motor 60 and the outer bucket 54 to impeller 56 and interior barrel 58 power transmission 80 formations that motor 60 actuating forces are provided selectively.

The top cover 62 that is formed with the washings gateway (not shown) that washings comes in and goes out is installed in the upper end of casing 52, is installed as support washing machine in the lower end and has the base 64 of supporting leg.Rotatably be installed as the cover 62a that opens and closes the washings gateway on top cover 62, the one side is equipped with when supplying water the water supply installation 66 to the washing machine private water supply.

Water supply installation 66 provides the water supply valve 66b of washings to constitute by the water supply hose 66a that supplies with washings from the outside with to water supply hose 66a control, detergent box 66c is installed on the water supply stream, makes water flow into 54 li in outer bucket together with washing agent through water supply valve 66b.

When draining is installed in bucket 54 bottom outside to the outside drainage arrangement 70 of discharging outer barrel 54 li washings of washing machine.

Drainage arrangement 70 comprises the water discharging valve 72 that is communicated with outer bucket 54 discharge outlet 54b by an end, the drain motor 74 of water discharging valve 72 switchings is adjusted in the bottom surface that is installed in outer bucket 54, follows the other end of water discharging valve 72 to be communicated with scupper hose 78 formations of the washings of discharging from water discharging valve 72 to the washing machine exterior guiding.

Discharge outlet 54b is for the internal communication with outer bucket 54, and the bottom of bucket 54 is protruded to downside and formed outside, and drain motor 74 utilizes independent link to be connected on the water discharging valve 72.

Motor 60 uses outer rotor type induction motor.60 li conducting AC power of motor, the actuating force of motor 60 is suitably slowed down by power transmission 80.

Power transmission 80 comprises by fixedly mounting the bottom center of bucket 54 outside, the bottom is equipped with the shell 82 of motor 60, be rotatably installed in the inside of shell 82, portion is equipped with the drum 84 of the planetary gear 83 that makes the deceleration of motor 60 actuating forces within it, the bottom is pressed into 84 li of drums, the upper end is connected on the interior bucket 58 and the dehydrating shaft 86 of inner hollow, be rotatably installed in the hollow inner side of dehydrating shaft 86 and the bottom is engaged on the planetary gear 83 and the upper end is connected wash shaft 88 on the impeller 56, the brake mechanism 90 that is installed on the shell 82 and makes power transmission 80 stop to drive is installed in the bottom of drum 84 and retrains clutch mechanism 100 formations that power transmits between motor 60 and the drum 84.

Shell 82 is for rotatably support drum 84 and dehydrating shaft 86 and in the upper and lower bearing 82a is installed, and drum 84 is rotatably installed the rotating shaft 130 of motor 60 in lower inside.

Mesh with the planetary gear 83 that is built in 84 li of drums the upper end of rotating shaft 130, and between drum 84 and rotating shaft 130 and dehydrating shaft 86 and the wash shaft 88 bearing is arranged also.

The interior bucket wheel hub 58a of bucket 58 bottom surfaces in the upper end of dehydrating shaft 86 is connected and is fixed in, its bottom is pressed into the top that is fixed on drum 84, so the power utilization clutch mechanism 100 of motor 60 is sent on the interior bucket 58 by drum 84.

Brake mechanism 90 as shown in Figure 6, comprise the brake band 92 that is fixed on shell 82 and is provided with by an end around drum 84 peripheries, with the other end hinge of brake band 92 in conjunction with and be installed in rotation on the brake bar 94 of shell 82, the braking motor 96 that connects with brake bar 94 in order to make brake band 92 press drum 84 peripheries constitutes.

Braking motor 96 is installed in the bottom surface of outer bucket 54, in order to force to stop drum 84 by brake band 92, with the above active force running of designated value brake bar 94.Braking motor 96 is in order to utilize brake band 92 and fully to guarantee the braking force of drum 84 and use heavy-duty motor.

Clutch mechanism 100 comprises by the connection brake 102 that is fixedly mounted on shell 82 bottom surfaces, for in the lifting of the bottom of drum 84, the clutch connector 104 that combines with spline, be installed in rotation on and connect on the brake 102, one end is connected the clutch lever 106 of clutch connector 104, and the other end that is connected clutch lever 106 retrains the clutch motor 108 that power transmits between clutch connector 104 and the motor 60 and constitutes.

Clutch connector 104 protrudes below for the 2nd clutch gear 166 with motor 60 meshes and is formed with the 1st clutch gear 104a, and combines with spline for drum 84 liftings that can make clutch mechanism 100.

The other end was connected on the clutch motor 108 when one end of clutch lever 106 was connected clutch connector 104, for the middle part that makes an end and the other end can rotate be connected brake 102 hinge combinations.

Clutch motor 108 is installed in the bottom surface operated clutch declutcher control lever 106 of outer bucket 54, makes the bottom lifting of clutch connector 104 along drum 84.

When clutch lever 106 rotates under the effect of clutch motor 108, clutch connector 104 is promoted by clutch lever, and direction is slided up and down along the bottom of drum 84, and some gears engaged with motor 60 and in being connected brake 102.

The running of the washing machine of the present invention of Gou Chenging is as follows like this.

At first, turn-on power in the washing machine, when motor 60 drives, the actuating force of motor 60 is sent to power transmission 80 by rotating shaft 130, be sent to impeller 56 or interior bucket 58 by power transmission 80 selectivity, impeller 56 or interior bucket 58 are driven, wash, processes such as rinsing, dehydration.

More particularly,, wash and rinse cycle the time, power transmission 80 promotes clutch connector 104 under the effect of clutch motor 108 and clutch lever 106 being connected of releasing motor 60 and drum 84 when having only impeller 56 rotation.

Promptly, clutch mechanism 100 utilizes the active force running clutch lever 106 of clutch motor 108, if clutch connector 104 rises on the bottom of drum 84, the 1st clutch gear 104a of clutch connector 104 separates with the 2nd clutch gear 166 of motor 60, and the power of motor 60 can not be sent on the clutch connector 104 thus.

Therefore, the power of motor 60 transmits by 130 planetary gears 83 to drum 84 inside of rotating shaft, slows down to after the suitable speed by planetary gear 83, is sent to wash shaft 88, and impeller 56 rotations that connect with wash shaft 88 are washed or rinse cycle thus.

In washing or rinse cycle, the washings that utilize drainage arrangement 70 when washing and rinsing are discharged in the outside, to use, and utilize water supply installation 66 to washing machine internal feed clean water.

Promptly, water supply valve 66b according to water supply installation 66 opens and closes, by water supply hose 66a 54 li water supply of outer bucket to washing machine, by the drain motor 74 opening water discharge valves 72 of drainage arrangement 70, the washings that outer bucket is 54 li are discharged to the outside by water discharging valve 72 and scupper hose 78.

On the contrary, when impeller 56 and the running simultaneously of interior bucket 58, when carrying out the washings dehydration, power transmission 80 clutch connector 104 under the effect of clutch motor 108 and clutch lever 106 descends, and is thus connected motor 60 and drum 84.

Promptly, clutch lever 106 promotes to turn round by the active force of clutch motor 108, clutch connector 104 descends along the bottom of drum 84, then the 1st clutch gear 104a of clutch connector 104 is with the 2nd clutch gear 166 engagements of motor 60, and the power of motor 60 can be sent on the clutch connector 104 thus.

The power of motor 60 is sent to by rotating shaft 130 on the planetary gear 83 of drum 84 inside, transmits to drum 84 by clutch connector 104 simultaneously, so the drum 84 speed rotation identical with rotating shaft 130 usefulness.

Because the speed rotation that drum 84 and rotating shaft 130 usefulness are identical, the planetary gear 83 of drum 84 inside can not play deceleration, so drum 84 and rotating shaft 130 high speed rotating.

As mentioned above, if the power of motor 60 while transmits to drum 84 and rotating shaft 130, rotating shaft 130 and planetary gear 83 rotate wash shaft 88, drum 84 rotary dehydration axles 86, and impeller 56 and interior bucket 58 are washed axle 88 and dehydrating shaft 86 drives and rotation together thus.

In the dehydration of washing machine, if the user opens cover 62a, power transmission 80 makes drum 84 stop the rotation under the effect of brake mechanism 90, but advance preventing because of impeller 56 and interior bucket 58 high speed rotating security incident takes place thus.

Promptly, when the dehydration of impeller 56 and interior bucket 58 high speed rotating, if cover 62a opens, the braking motor 96 pulling brake bars 94 of brake mechanism 90, brake bar 94 pulling brake bands 92, make the periphery of brake band 92 banding drums 84, increase the frictional force between drum 84 and the brake band 92 thus, drum 84 is stopped the rotation.

If stop the rotation of drum 84 like this, then dehydrating shaft 86 and wash shaft 88 are stopped the rotation, and interior thus bucket 58 and impeller 56 also stop the rotation.

Fig. 7 is the exploded perspective view according to motor for washer of the present invention, and Fig. 8 is the plane graph according to rotor frame of the present invention.

According to motor for washer of the present invention such as Fig. 5 and Fig. 7 and shown in Figure 8, comprise by the stator 110 that is fixedly mounted on power transmission 80 shells 82 bottoms, encase the outside of stator 110 and utilize the electromagnetic force rotor rotated 120 that produces with between the stator 110, the bottom is fixed on the rotor 120, and the upper end constitutes with planetary gear 83 engagements and the rotatable rotating shaft 130 that is installed in power transmission 80 drums 84 inboards of power transmission 80.

Here, stator 110 comprise by a plurality of iron plates stacked form annular unshakable in one's determination 112, at the winding coil 114 of 112 spirals unshakable in one's determination and conducting AC power, the top and insulator underlying 116 of the top iron and screw heart 112 constitutes in order to make unshakable in one's determination 112 top and following insulation.

Iron core 112, a plurality of electromagnet 112a that twine winding coil 114 in periphery protrude formation laterally, and in order to be fixed on set bolt (not shown) on the shell 82 of power transmission 80, are formed with a plurality of joint portion 112b at the inner peripheral surface protrusion.A plurality of electromagnet 112a form in unshakable in one's determination 112 periphery equal intervals, and a plurality of joint portion 112b forms in interior all equal intervals of unshakable in one's determination 112, and are formed with in order to make the combined hole 112c of set bolt combination.

Winding coil 114 is to insert a side on two electromagnet 112a in a plurality of electromagnet 112a and insert opposite side between other two electromagnet 112a, twines a plurality of on unshakable in one's determination 112 electromagnet 112a.Therefore, on unshakable in one's determination 112 and below the upper and lower of winding coil 114 is set, and with other component for fixing 113 on unshakable in one's determination 112 and below around outer peripheral face binding setting.

Promptly, winding coil 114 is divided into the upside winding coil 114a that is provided with on 112 peripheries unshakable in one's determination, the downside winding coil 114b that below 112 peripheries unshakable in one's determination, is provided with, be inserted between a plurality of 112a and connect upside winding coil 114a and downside winding coil 114b be connected winding coil 114c.

Thereupon, unshakable in one's determination 112 top and below the major part of winding coil 114 is set, the outstanding length of electromagnet 112a is also than reducing in the past, so the diameter of stator 110 diminishes.

Insulator 116 prolongs following insulator 116b formation that outboard end form for hiding downside winding coil 114b by being installed in unshakable in one's determination 112 top top insulator 116a when being installed in below unshakable in one's determination 112.

Top insulator 116a is installed in when stator 110 is set between power transmission 80 and unshakable in one's determination 112, prevents from the phenomenon of stator 110 to power transmission 80 energisings.

Following insulator 116b is that outboard end is bent to form to the parabolic shape of downside protuberance around downside winding coil 114b when 112 electromagnet 112a sides unshakable in one's determination prolong formation.

That is, below identical with the winding coil 114 on the whole radius of insulator 116b form, outboard end at installed inside downside winding coil 114b and along around be formed with the semi-circular winding accommodation section 117 of downward protuberance.Therefore, below insulator 116b insulation stator 110 below, and from the intrusion of external impact and washings protection downside winding coil 114b.

Certainly, insulator 116a also can equally form around upside winding coil 114a with following insulator 116b above.

Rotor 120 comprises by outer peripheral face that encases stator 110 and following rotor frame 122, be installed in the inner peripheral surface of rotor frame 122 and utilize the electromagnetic force rotor rotated iron core 124 that produces with between the stator 110, be installed in the following central authorities of rotor frame 122 and fixedly the rotor axle sleeve 126 of rotating shaft 130 bottoms constitute.

Rotor frame 122 integral body are open above columnar structured, inner circumferential surface forms the rotor core fixed part 122a of the above-mentioned rotor core 124 of promising fixed installation, and center is formed with in order to have the axle sleeve fixed part 122b of the 1st combined hole 160a in conjunction with fixed rotor axle sleeve 126 with secure component 160 below it.

Be formed with on the rotor frame 122 to inside and send extraneous air and prevent ventilation hole and the blade that motor 60 temperature rise.When motor 60 drives, because because of the internal temperature that electro permanent magnetic thermal loss motor 60 takes place rises, so in order to prevent that motor 60 performances from reducing, and needs cooling motor 60.

Therefore, the leg space ventilation hole 140 and the lower blade 142 of the promising cooling motor of the following formation of rotor frame 122 60 bottoms, its side forms the side vents 144 of the cooling performance of promising raising leg space ventilation hole 140 and lower blade 142.

Leg space ventilation hole 140 forms between the inner peripheral surface of rotor frame 122 and axle sleeve fixed part 122b, simultaneously the circumferencial direction of rotor frame 122 separated by a distance be formed with a plurality of.

Lower blade 142 is protruded on a side direction in leg space ventilation hole 140 in order to make extraneous air pass through 140 air-supplies of leg space ventilation hole and is formed.

Leg space ventilation hole 140 and lower blade 142 form more longways to the radial direction of rotor frame 122, but the radial direction of rotor frame 122 is tilted to specify angle of inclination (A).Thus, leg space ventilation hole 140 is relative with lower blade longer than the leg space ventilation hole that the radial direction to rotor frame 122 forms with lower blade 142, in the time of rotor frame 122 rotations, by the air capacity increase of leg space ventilation hole 140 and lower blade 142 air-supplies.

Angle of inclination (A) according to leg space ventilation hole 140 and 142 pairs of rotor frame 122 radial directions of lower blade becomes big, and the air air output increases, if angle of inclination (A) surpasses more than 30 degree, the air output of air reduces on the contrary.If leg space ventilation hole 140 and lower blade 142 tilt to the opposite direction of rotor frame 122 rotations, than the air quantity increase of the situation air that tilts to the identical direction of rotor frame 122 direction of rotation (S).

Therefore, when motor 60 heats produce maximum dehydration, in order to make the cooling performance maximization of motor 60, leg space ventilation hole 140 and lower blade 142 radial direction of transfer subframe 122 between form 30 degree angles of inclination (A) when motor 60 direction of rotation tilt when dehydration in the other direction.

Side vents 144 is the holes of being discharged by leg space ventilation hole 140 and lower blade 142 inhaled airs.Side vents 144 forms below rotor frame 122 and between the rotor core fixed part 128, and equidistantly be separated by in the side of rotor frame 122 be formed with a plurality of.

Such side vents 144 is positioned at than rotor frame 122 following high positions, so the air flow circuit between leg space ventilation hole 140 and the side vents 144 is positioned at higher position below rotor frame 122.Therefore, flow into of the contact area increase of the air in leg space ventilation hole 140, so improve cooling performance to motor 60 bottoms with motor 60 bottoms.

In addition, form the crimping 146 and the jog 148 of promising reinforcement intensity on the rotor frame 122, prevent phenomenon because of centrifugal force twists or ellipse is distorted.

Crimping 146 be below rotor frame 122 to upside or downside curved, and form more longways to the radial direction of rotor frame 122, simultaneously to circumferencial direction with the formation of being separated by of identical angle.

One end of such ribs 146 is to greatest extent near the side of rotor frame 122, and the other end is overlapping and be positioned on the same circumference of the 1st combined hole 160a in the axle sleeve fixed part 122b for the sub-axle sleeve of transfer 126.

Jog 148 is below rotor frame 122 and the corner portion that forms of the side structure of bending ram to the inside, the circumferencial direction of rotor frame 122 with identical angle be separated by be formed with a plurality of.

Rotor core 124 is by the stacked circular core part 124a that forms of a plurality of iron plates, and the 124b of winding portion that plays the induced current pathway effect in core part 124a formation constitutes.The 124b of winding portion is by upper end ring 150 and bottom end ring 151 in each self-forming of the top and bottom of core part 124a, and the lead 152 that connects upper end ring 150 and bottom end ring 151 is formed.

Rotor core 124 is fixedly mounted on the rotor core fixed part 122a of rotor frame 122, and the upper and lower of rotor core fixed part 122a forms promising upside protuberance 154 and the downside protuberance 155 that tangles the top and bottom of rotor core 124 separately.

When rotor 120 rotations, in order to prevent that rotor core 124 from spinning off from the upside of the opening of rotor frame 122, upside protuberance 154 side direction circumferencial direction in rotor core 124 be separated by form a plurality of, and the size of transfer unshakable in one's determination 124 is irrelevant, forms at rotor core fixed part 122a with specified altitude assignment.

Downside protuberance 155 is separated by for support rotor unshakable in one's determination 124 upwards and at the following side direction circumferencial direction of rotor core fixed part 122a and is had a plurality ofly, and according to the size of rotor core 124, forms at rotor core fixed part 122a with different height.Therefore, according to the height difference of downside protuberance 155, the alternative rotor core 124 that different sizes are installed in the rotor core fixed part 122a.

For upside protuberance 154 and downside protuberance 155 are protruded to the inboard of rotor frame 122, in the outer peripheral face outside-in punch process of rotor frame 122 and form upside protuberance 154 and downside protuberance 155.

For rotor core 124 more firmly is fixed on the rotor core fixed part 122a, also can between rotor core 124 and rotor core fixed part 122a, smear adhesive.

Cool off under the effect of the leg space ventilation hole 140 of rotor frame 122 and lower blade 142 bottom of motor 60, but can not arrive the top of motor 60 from the air of leg space ventilation hole 140 and lower blade 142 air-supplies, but ventilation hole 144 is discharged from the side, so almost there is not the top of cooling motor 60 from the air of leg space ventilation hole 140 and lower blade 142 air-supplies.

Therefore, when motor 60 drives,, be formed with the upper blade 158 that projects upwards in the upper end of rotor core 124 in order to make extraneous air to the air-supply of the top of motor 60.

Upper blade 158 integral molded plastic moulding on the upper end ring 150 of rotor core 124, and when the radial direction (R) of rotor frame 122 forms more longways, equidistantly be separated by along the upper end of rotor core 124 form a plurality of.

Rotor core 124 is for its internal diameter is provided with greatlyyer relatively than the external diameter of stator 110 with having the big or small space (G) of appointment between the stator 110.

(G) is more little in the space, the efficient of motor 60 is just high more, if but space (G) is too narrow, the possibility of rotor 120 collision stators 110 rises, so always to keep optimal space (G) between rotor core 124 and the stator 110 in order making, to note when needing design and making and postmortem.The space positioner in promising location of formation and mensuration space (G) below rotor frame 122.

The space positioner is in order to confirm outside and to measure space (G) and be arranged on the following space location hole 156 of rotor frame 122, space location hole 156 be for be arranged on space (G) following below rotor frame 122 along circumferencial direction equidistantly be separated by form a plurality of.

Rotor axle sleeve 126 comprises that by the fixing shaft sleeve part 126a of rotating shaft 130 bottoms the fixed part 126b that forms and be fastened on the rotor frame 122 axle sleeve fixed part 122b around shaft sleeve part 126a forms.

Shaft sleeve part 126a makes of metal material, and inserts a fixedly end of rotating shaft 130.

Fixed part 126b forms with injection-moulded plastic in order to prevent energising between shaft sleeve part 126a and the rotor frame 122, and be formed with the 2nd combined hole 160b corresponding with the 1st combined hole 160a of axle sleeve fixed part 122b, utilize secure component 160 to be fastened on axle sleeve fixed part 122b thus.

Each comfortable axle sleeve fixed part 122b of the 1st combined hole 160a and the 2nd combined hole 160b and rotor axle sleeve 126 are formed with a plurality of mutually accordingly to circumferencial direction, and a plurality of the 1st combined hole 160a and the 2nd combined hole 160b utilize bolt 162 and rivet 164 to be connected and fixed in turn to circumferencial direction.

Be formed with the 2nd clutch gear 166 above the fixed part 126b with the 1st clutch gear 104a engagement of clutch connector 104.

The following describes the running and the effect of motor for washer of the present invention.

At first, 60 li conducting AC power of motor, 114 li current lead-through of the winding coil of stator 110 then, thus produce rotating magnetic fields at stator 110, and in the rotor core 124 of rotor 120, produce induced current.

Under magnetic field and faradic interaction, between stator 110 and rotor core 124, produce revolving force and come rotor 120, the revolving force of rotor 120 is sent to power transmission 80 by rotating shaft 130.

According to rotor 120 rotations, rotor core 124 will break away from away to the upside of opening of rotor frame 122 when direction flows up and down under the effect of revolving force, but because that the top and bottom of rotor core 124 are hung by upside protuberance 154 and downside protuberance 155 is fixing, so prevent the random disengaging of rotor core 124.

Stator 110 is top insulator 116a to be installed in the above prevent circulating current between stator 110 and the power transmission 80, insulator 116b below installing below, make the winding coil accommodation section 117 covering downside winding coil 114b of insulator 116b below, prevent that downside winding coil 114b from exposing to the outside of stator 110.

Therefore, in stator 110 is arranged on state on the power transmission 80, do not prevent electric shock and other safety accidents, and external impact can not be directly delivered on the winding coil 114, so prevent the breakage of winding coil 114 so winding coil 114 does not expose laterally.

If rotor 120 rotates under rotating magnetic field and faradic interaction, the leg space ventilation hole 140 of rotor frame 122 and lower blade 142 suck extraneous air, and the extraneous air that is sucked by leg space ventilation hole 140 and lower blade 142 is to the air-supply of the bottom of stator 110 and rotor core 124, the bottom of cooling motor 60, the air behind the bottom of cooling motor 60 is discharged to the outside by the side vents 144 of rotor frame 122 sides in addition.

The opposite direction of leg space ventilation hole 140 and lower blade 142 rotor 120 direction of rotation (S) when washing machine carries out dehydration tilts about 30 degree, so when rotor frame 122 to dehydration direction (S) rotation time, the air quantity maximization of leg space ventilation hole 140 and lower blade 142, when motor 60 heats produce maximum dehydration thus, can make the cooling performance maximization of motor 60.

Because side vents 144 is positioned at the following high relatively position than rotor frame 122, if compare with structure in the past, inlet air flow path between leg space ventilation hole 140 and the side vents 144 rises to stator 110 and rotor core 124 sides, and the contact area of motor 60 and extraneous air increases thus.

According to rotor 120 rotations, the upper blade 158 on the rotor core 124 upper end joggling part 122c sucks extraneous air, blows the top of cooling motor 60 by the extraneous air that upper blade 158 sucks to the top of stator 110 and rotor core 124.

As mentioned above, because motor 60 area that the bottom of motor 60 follows extraneous air to contact when extraneous air is carried in the upper and lower simultaneously increases, extraneous air cooling that top was also sucked by upper blade 158 when so the bottom of motor 60 was cooled off by the extraneous air of leg space ventilation hole 140 and lower blade 142 suctions, the performance of cooling motor 60 improved when motor 60 drove, and the efficient of motor 60 improves thus.

In addition, when rotor 120 high speed rotating, bigger centrifugal force is arranged on the rotor frame 122, so generation makes rotor frame 122 distortions or the oval stress of distorting on the rotor frame 122, but distortion that a plurality of crimpings 146 that quilt forms on rotor frame 122 and jog 148 prevent rotor frame 122.

That is, be used in a plurality of crimpings 146 and the jog 148 that rotor frame 122 has and strengthened intensity, rotor frame 122 intensity have been strengthened, so even the thickness attenuation of rotor frame 122 also can prevent the distortion of rotor frame 122.

In addition, act on the stress on the rotor frame 122, the axle sleeve fixed part 122b effect that the section difference is formed and forms a plurality of combined hole 160a, 160b insertion connection rotating shaft 130 is big, but crimping 146 forms to the position that is formed with axle sleeve fixed part 122b the 1st combined hole 160a more longways from rotor frame 122, so can prevent to concentrate the axle sleeve fixed part 122b side distortion that causes by stress.

In addition, space (G) between stator 110 and rotor 120 size is according to change in location and different, active force between stator 110 and the rotor core 124 is according to the position of space (G) and the skewness weighing apparatus, rotor 120 and stator 110 collisions, so after producers and maintenance of equipment personnel confirm the spacing in space (G) by a plurality of spaces location hole on the rotor frame 122 156, keep and adjust the spacing of space (G).

That is, by confirming a plurality of spaces location hole 156 corresponding each spaces (G), check the size in space (G), check out that space (G) is bad, operation is easier when adjusting space (G) size thus.

Claims (3)

1, a kind of stator of motor for washer comprises by being arranged on outer bucket and goes up and make its iron core that is installed in the rotor inboard, is wrapped in unshakable in one's determination going up and the winding coil of input ac power; It is characterized in that: be installed in lateral surface unshakable in one's determination, prolong the insulator formation that the one side forms for hiding winding coil simultaneously.

2, the motor of washing machine according to claim 1, it is characterized in that: insulator is by the top insulator that is installed in above unshakable in one's determination, be installed in unshakable in one's determination below and prolong the following insulator that outboard end forms and constitute for covering is arranged on winding coil below the periphery unshakable in one's determination.

3, the motor of washing machine according to claim 2 is characterized in that: the outboard end of following insulator prolongs formation to the periphery of iron core, thinks that simultaneously the parabolic shape to the downside protuberance is bent to form around being arranged on following winding coil unshakable in one's determination.

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