KR200149063Y1 - Power transfer apparatus of a direct washing machine - Google Patents

Abstract

The present invention relates to a power transmission means of a drive device for a direct washing machine, the permanent magnet 251 is integrally fixed to the outer periphery of the clutch upper 244 provided in the power transmission means 24 constituting the drive device (2) In addition, an electromagnet 252 is installed below the lower housing 222 and an upper portion of the bearing 253 and the clutch upper 244 installed to facilitate rotation of the gear case 245 in the lower housing 222. Spring 254 is provided on the surface, the washing is performed by using the magnetic force of the electromagnet at the time of washing, and when using the reaction force of the spring at the time of dehydration, the mechanical configuration for washing and dehydration is simple yet reliable Of course, it is possible to eliminate the wear and noise generated in the conventional clutch lever.

Description

Power transmission means of drive device for direct washing machine

1 is a cross-sectional view for explaining a power transmission means of a direct washing cost driving apparatus according to the prior art.

2 is a cross-sectional view for explaining the power transmission means of the drive device for a direct washing machine according to the prior art.

3 is a cross-sectional view for explaining a power transmission means of the drive device for a direct washing machine according to the present invention.

* Explanation of symbols for main parts of the drawings

1: washing tank 2: driving device

3: dehydration tank 4: pulsator

21: packing member 22: housing member

23: power generating means 24: power transmission means

221: upper housing 222: lower housing

231: upper motor housing 232: lower motor housing

241: drive shaft 242: clutch lower

244: clutch upper 245: gear case

246: drum 247: connector

248: gear unit 249: driven shaft

250: brake portion 251: permanent magnet

252: electromagnet 253: bearing

254: spring

The present invention relates to a driving device for a washing machine, and in particular, the mechanical configuration for washing and dehydration can be secured simply and reliable, as well as the drive device for a direct washing machine to remove the wear and noise of the clutch lever. It relates to a power transmission means.

In the conventional washing machine, as shown in FIG. 1, a washing tank 1 is mounted inside a washing machine body via a suspension bar, and a driving device 2 generates power and transmits power to an inner lower portion of the washing tank 1. ) Is mounted, the dehydration tank (3) and the pulsator (4) which is rotated by the power of the driving device is mounted on the inner central upper portion of the washing tank (1).

Here, the driving device 2 is fitted in the center of the washing tank 1, the packing member 21 is installed so that the water of the washing tank 1 does not fall toward the driving device 2, and the lower portion of the packing member 21 The housing member 22 mounted to be supported by the support means (not shown) installed in the washing machine body together with the load, and the power generating means 23 installed at the lower portion of the housing member 22 to generate rotational force by power supply. And a power transmission means 24 provided inside the housing member 22 to transmit the rotational force generated by the power generating means 23 to the dehydration tank 3 and the pulsator 4.

And the housing member 22, the upper housing 221 is installed in close contact with the upper portion from the center lower portion of the packing member 21 installed in the washing tank 1 and the fastening means in the lower portion of the upper housing 221 It consists of a lower housing 222 installed.

In addition, the power generating means 23, the upper motor housing 231 is installed in the lower portion of the upper housing 221 via the support member, the lower motor housing (231) through the fastening means in the lower portion of the upper motor housing 231 ( 232 and a motor 233 fixed between the upper and lower motor housings 231 and 232. On the other hand, the power transmission means 24, the drive shaft 241 of a predetermined length so as to rotate through the bearings provided in the upper and lower motor housings (231,232) under the rotational force of the power generating means 23, and The clutch lever 243 is coupled to the drive shaft 241 and is installed at a predetermined distance from the upper surface of the inner bottom of the upper motor housing 231, and the clutch lever 243 is attached to the clutch lower 242 when dewatering. A clutch upper 244 installed to be in close contact with each other and rotated, a gear case 245 coupled to the clutch upper 244 and splined and freely rotated through a bearing installed in the lower housing 222. And a drum 246 fixedly coupled to an upper portion of the gear case 245 and rotatably installed through a bearing installed in the upper housing 221, and pressed into the upper portion of the drum 246. The connector 247 rotatably fixed together with the water tank 3 and the drive shaft 241 installed to protrude upward through the center of the gear case 245 and are engaged with the internal gear of the dream 246. A gear unit 248 having a planetary gear so as to decelerate, and a driven shaft 249 coupled to the gear unit 248 and coupled to rotate with the pulsator 4, and the drum 246. The centrifugal force has a brake bend so as to prevent rotation of the dehydration course even after the dehydration course, and a brake portion 250 which is capable of applying an external force to the clutch lever 243 is provided.

The direct washing machine configured as described above is supplied with a certain amount of laundry and detergent in the dehydration tank (3), power is applied, and washing health is selected. Cold or hot water is introduced into the dehydration tank (3) through a water supply means not shown. When supplied and raised to a certain height of the washing tank (1) and the dehydration tank (3) is mounted on the bottom surface of the dehydration tank (3) via the power transmission means 24 in accordance with the operation of the power generating means (23). The pulsator 4 is inverted several times to form a stream of water to perform a washing course.

When the washing is completed according to the washing course, the washing water is drained from the washing machine body to the outside according to the operation of the drainage means (not shown), and the washing water is rinsed and dewatered by a process leading to a new course. After the washing water is supplied and the rinsing course is performed several times, the dehydrating tank 3 is rotated at a high speed through the power transmission means 24 so that the dehydrating course is repeated and washed through all the course processes of the washing machine for a predetermined time. Will complete.

However, the clutch of the conventional washing machine is in close contact with the clutch lever 243 in which the clutch lower 242 and the clutch upper 244 are operated by an external force, so that the rotational force of the drive shaft 241 is transmitted to the gear case. 245 and the drum 246 and the connector 247 are delivered to the dehydration tank 3 as it is to perform dehydration, wherein the front end of the clutch lever 243 of the clutch upper 244 is rotating Since it is in close contact with the upper flange 244a, the front end of the clutch lever 243 is worn, as well as the noise generated at this time there was a defect that is less reliable.

The present invention is devised to solve the above-mentioned defects, the permanent magnet is fixed to the upper outer peripheral surface of the clutch upper constituting the power transmission means, the electromagnet is to be in contact with the permanent magnet at the bottom of the lower housing In addition, the lower housing has a spring installed on the lower side of the bearing and the upper surface of the clutch upper to facilitate the rotation of the gear case. When washing, the clutch has a permanent magnet installed by using the magnetic force of the electromagnet installed in the lower part of the housing. The upper part is separated from the clutch lower, and then washed, and when dewatered by using the reaction force of the spring, the mechanical configuration for washing and dewatering can be secured simply and reliability as well as wear of parts and It provides the power transmission means of the drive system for the direct washing machine which can remove the noise. Never.

The present invention for achieving the above object, while the housing member is mounted so as to be supported by the support means installed in the washing machine body, while being fitted to the lower portion of the packing member installed so that the water of the washing tank does not fall toward the drive device, while the housing A driving device for a washing machine comprising a power transmission means installed at a lower portion of a member and installed to transmit a rotational force generated by a power generating means by a power supply to the dehydration tank and a pulsator, wherein the power transmission means is the power generating means. Clutch installed at a certain length from a drive shaft of a predetermined length so as to rotate through a bearing installed on the upper and lower motor housings, and spline-coupled to the drive shaft, and spaced apart from an upper surface of the inner bottom of the upper motor housing. When the spinner is dehydrated, it can rotate close to the clutch lower. The clutch upper is installed so that it can be splined to the clutch upper, and the gear case can be freely rotated through the bearing installed in the lower housing. A drum installed in a rotatable manner, the connector being press-fitted into the upper portion of the drum and rotatably fixed together with a dehydration tank, and coupled to a drive shaft installed to protrude upward through the center of the gear case. A gear unit with planetary gears to be decelerated and coupled to the gear unit, a driven shaft coupled to the gear unit and rotatably coupled with the pulsator, and the drum rotating after a dehydration course by centrifugal force. While the brake part is prevented, A permanent magnet is integrally fixed to the upper outer circumferential surface of the clutch upper, and an electromagnet is installed at the lower portion of the lower housing so as to contact the permanent magnet, and the lower side of the bearing and the clutch upper installed to facilitate rotation of the gear case in the lower housing. The upper surface of the structure has a spring with elasticity.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

3 is a cross-sectional view for explaining a power transmission means of a drive device for a direct washing machine according to the present invention, the same reference numerals are attached to the same parts as in FIGS.

Power transmission means 24 according to the present invention, as shown in Figure 3, is installed to rotate through the bearings installed in the upper / lower motor housings (231, 232) by the rotational force of the power generating means (23) A clutch shaft 241 having a predetermined length, a sprocket coupled to the driving shaft 241, and a clutch lower 242 provided at a predetermined distance from an upper surface of an inner bottom of the upper motor housing 231, and the clutch lower when dewatering; A gear case installed to be in close contact with the clutch 242 and the clutch upper 244 installed so as to be splined to the clutch upper 244 and freely rotated through a bearing installed in the lower housing 222. 245, a drum 246 fixedly coupled to an upper portion of the gear case 245 and rotatably installed through a bearing provided in the upper housing 221, and pressed into the upper portion of the drum 246 and further. The internal gear portion of the drum 246 is coupled to the connector 247 rotatably fixed together with the blow dewatering tank 3 and the drive shaft 241 installed to protrude upward through the center of the gear case 245. A gear unit 248 having a planetary gear to be decelerated and coupled to the gear unit; a driven shaft 249 connected to the gear unit 248 and rotatably coupled with the pulsator 4; 246 is equipped with a brake unit 250 to prevent the rotation even after the dehydration course by the centrifugal force, while the permanent magnet 251 is integrally fixed to the upper outer peripheral surface of the clutch upper 244, An electromagnet 252 is installed at the lower portion of the lower housing 222 to be in contact with the permanent magnet 251, and the bearing 253 is installed at the lower housing 222 to facilitate rotation of the gear case 245. On the lower side and the circumferential surface of the clutch upper 244 It is equipped with a spring structure (254) having a force.

The operation of the power transmission means according to the embodiment of the present invention configured as described above and the effects thereof will be described next.

When the washing stroke is applied to the electromagnet 252 after the dehydration stroke, the permanent magnet 251 integrally fixed to the outer side of the clutch upper 244 ascends in a direction opposite to the spring force of the spring 254 by magnetic force. 254 is raised to the maximum compression position and then laundered.

In this case, the electromagnet 252 and the permanent magnet 251 is not in a state of being completely in contact with each other to maintain a certain interval of washing.

When the power supply to the electromagnet 252 is stopped, the clutch upper 244 is lowered along the spline of the gear case 245 by the elastic force of the spring 254 to engage with the teeth of the clutch lower 242 to generate power. The rotational force generated by the means 23 is transmitted to the clutch lower 242 → the clutch upper 244 → the gear case 245 → the drum 246 → the connector 247 through the drive shaft 241, thereby dehydrating the tank 3. ) And at the same time, the rotational force transmitted to the gear case 245 is transmitted to the driven shaft 249 through the gear unit 248 to the pulsator 4 in the same direction as the rotational direction of the dehydration tank 3. Dewatering course is carried out by rotating.

As described above, according to the power transmission means according to the present invention, the permanent magnet 251 is integrally fixed to the outer circumference of the clutch upper 244 provided in the power transmission means 24 constituting the drive device 2, The electromagnet 252 is installed at the lower portion of the lower housing 222, and the upper surface of the bearing 253 and the clutch upper 244 installed to facilitate the rotation of the gear case 245 in the lower housing 222. Equipped with a spring 254, the washing is performed by using the magnetic force of the electromagnet at the time of washing, and when using the reaction force of the spring at the time of dehydration, the mechanical configuration for washing and dehydration can be secured simple yet reliable Of course, there is an effect that can remove the wear and noise generated in the conventional clutch lever.

Claims (1)

The housing member 22 is mounted so that the water of the washing tank 1 is inserted into the lower part of the packing member 21 installed so as not to drain toward the driving device 2 and supported by the supporting means installed in the washing machine body. Drive device for a washing machine provided in the lower portion of the member consisting of a power transmission means 24 installed to transmit the rotational force generated in the power generating means 23 by the power supply to the dehydration tank (3) and the pulsator (4) In the power transmission means 24, the drive shaft 241 of a predetermined length so as to rotate through the bearings provided in the upper and lower motor housings (231, 232) under the rotational force of the power generating means (23) and In addition, the sprocket is coupled to the drive shaft 241 and the clutch lower 242 is installed at a predetermined distance from the upper surface of the inner bottom of the upper motor housing 231, and when dewatered close to the clutch lower 242 to rotate A clutch case 245 installed to be splined to the clutch upper 244, a spline coupled to the clutch upper 244, and freely rotated through a bearing installed in the lower housing 222, and the gear case ( The drum 246 is fixedly coupled to the upper part of the 245 and rotatably installed through the bearing installed in the upper housing 221, and is pressed into the upper part of the drum 246 and rotates together with the dehydration tank 3. The planetary gear is coupled to the connector 247 and the drive shaft 241 installed to protrude upwardly through the center of the gear case 245 while being coupled to the internal gear of the drum 246. The gear unit 248, the driven shaft 249 coupled to the gear unit 248 and coupled to rotate with the pulsator 4, and the drum 246 is dewatered by centrifugal force Past While the trace part 250 is provided to prevent the transfer, the permanent magnet 251 is integrally fixed to the upper outer circumferential surface of the clutch upper 244, and the permanent part is disposed below the lower housing 222. The electromagnet 252 is installed to contact the magnet 251, and the lower housing 222 is provided on the lower side of the bearing 253 and the upper surface of the clutch upper 244 installed to facilitate rotation of the gear case 245. Power transmission means of the drive device for a direct washing machine, characterized in that the spring 254 having a resilient force is provided.