KR950007078B1 - Driving apparatus for washing machine - Google Patents

Abstract

The washer drive has an additional function of drying laundries. It is composed of: I) a mator having a rotator and a fixture set on the base of the washer: II) the rotator for dehydrating (40) set on the external side of the revolving shaft (31): III) a dehydrating tank (42): and IV) a pulsator (30). The dehydrator is set between the dehydrating tank and a tub (44).

Description

Washing machine drive

1 is a schematic side view showing the structure of a general washing machine.

2 is a main sectional view for explaining a conventional washing machine driving device.

3 is a sectional view showing main parts of the washing machine driving apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

10: washing machine 11: case

12: dehydration tank 13: pulsator

14: motor 15a, 15b: support

16: laminated core 16a: drive coil

17: bearing 18: rotating shaft

19: core 20: permanent magnet

21: clutch device 30: pulsator

31: rotating shaft 32: permanent magnet

33: washing rotor 34: stator

35: support 36: laminated core

37: first driving coil 38: second driving coil

39: permanent magnet 40: rotor for dehydration

41: hollow shaft 42: dehydration tank

43: drive motor 44: tub

45: braking device 46: gearbox

47: fan 48: heater

49: substrate 50a, 50b: Hall sensor

The present invention relates to a washing machine, and more particularly, to a washing machine driving device, in which a washing pulsator and a dehydration tank are selectively driven, and a drying function is further added to a bipolar motor.

In general, the structure of the washing machine used is a dehydration tank 12 is mounted inside the case 11 constituting the main body of the washing machine 10 as shown in FIG. Pulsator 13 is installed. In addition, the dewatering tank 12 and the pulsator 13 are connected to one motor 14 to perform washing and dewatering processes. The washing machine driving motor 14 is a case as shown in FIG. The drive coil 16a is wound around the laminated core 16 fixed by the upper and lower supporters 15a and 15b in 11, and is supported by the bearing 17 inside the core 16. As shown in FIG. The core 19 is fixed to the outer side of the rotating shaft 18, and the permanent magnet 20 is attached to the outer circumferential surface of the core 19. Therefore, as the current is applied to the drive coil 16a, a magnetic field is formed to rotate the rotating shaft 18 by the interaction with the permanent magnet 20, and the upper part of the rotating shaft 18 is a washing pulse. The eater 13 and the dehydration tank 12 are respectively installed to selectively perform the washing and dewatering process.

However, in the conventional motor 14 structure as described above, in order to perform the washing and dewatering processes, a separate clutch device 21 must be provided to be switched in accordance with each process, in particular, during the washing process. Since the dehydration tank 12 is rotated by the water flow generated by the rotation of (13), there is a problem that the washing degree is lowered. Therefore, the applicant of the present invention, as disclosed in Korean Patent Application No. 92-7308, the washing rotator is fixed to the pulsator is installed and rotated above the rotation axis of the center, so as to maintain a constant void with the washing rotor Stator installed on the outside and the dehydration rotor is fixed to the spinneret is fixed to the outside of the pulsator to maintain a certain air gap and the stator installed by rotating, washing machine that can achieve various effects without a separate device It has been proposed for the driving motor.

It is an object of the present invention to provide a washing machine driving apparatus having a function of drying a laundry of a washing machine using a bipolar motor as described above in a shorter time.

A feature of the present invention for achieving the above object is a washing machine for selectively driving the washing pulsator and the dehydration tank by a bi-pole motor installed on the bottom of the washing machine, consisting of a rotor and stator for washing and dehydration In the drive device, a dehydration rotor is mounted on the outer side of the rotating shaft connected to the washing pulsator is connected to the dehydration tank by the hollow shaft, and a drying device is installed between the washing pulsator and the dehydration tank to dry the laundry. Is to add more functionality.

Hereinafter, an embodiment of a washing machine driving apparatus according to the present invention will be described in detail according to the accompanying drawings.

3 is a view for explaining the structure of the washing machine driving apparatus of the present invention, the rotary shaft 31 is installed in the center of the washing pulsator 30, the lower portion of the rotary shaft 31, N, S stimulation on the inner surface The magnetized permanent magnet 32 is attached to constitute the washing rotor 33. Further, the stator is provided on the inside so as to maintain a constant gap with the permanent magnet 32 of the washing rotor 33. The first and second driving coils 37 and 38 are respectively wound on both sides of the laminated core 36 fixedly installed by the support 35. In addition, inside the stator 34, a dehydration rotor 40 is provided with a permanent magnet 39 magnetized with N and S magnetic poles so as to maintain a constant gap with the laminated core 36. On the upper side of the dehydration rotor 40, 42 connected to the hollow shaft 41 is fixed and constitutes a drive motor 43.

On the other hand, a tub 44 is mounted on the outside of the dehydration tank 42, and a braking device 45 is provided on the hollow shaft 41 between the tub 44 and the drive motor 43. The gearbox 46 is mounted between the tub 44 and the dehydration tank 42. In addition, a gearbox 46 is mounted between the washing pulsator 30 and the dehydration tank 42. In addition, a drying device is installed between the laundry pulsator 30 and the dehydration tank 42 to perform a drying function of the laundry. Here, the drying device may be composed of a fan 47 and a heater 48 or an electromagnetic wave generator (not shown), and the drying device may include a dehydration tank 42 and a tub. It can also be installed between the (44). In addition, the washing pulsator 30 is integrally formed with the gearbox 46 to generate a sufficient washing torque even by a motor with a small size, and a substrate installed under the laminated core 36. Hall sensors 50a and 50b are mounted on 49 so that magnetic poles of the washing and dewatering rotors 33 and 40 can be detected.

The present invention configured as described above, in the case where the washing process is performed by rotating the pulsator 30 fixedly installed above the rotating shaft 31 of the washing rotor 33, first driving outside the laminated core 36. An electric current is applied to the coil 37, and the washing rotor 33 rotates by the interaction with the permanent magnet 32 inside the washing rotor 33 to rotate the pulsator 30. The washing process can be performed. In addition, in the dehydration process in the state in which the pulsator 30 is fixed, the electric current is applied to the second driving coil 38 of the laminated core 36 to permanently mounted to the dewatering rotor 40. The dehydration rotor 40 is rotated by the interaction with the magnet 39 and the dehydration process can be performed by rotating the dehydration tank 42 connected to the hollow shaft 41 at the same time. Here, when the current is applied to the first and second driving coils 37 and 38 on both sides of the laminated core 36 at the same time, respectively, the washing rotor 33 and the dewatering rotor Since the 40 is rotated in the opposite direction to each other, a more powerful water flow is formed to facilitate washing more easily.

On the other hand, as described above, after the washing and dehydration process is completed by rotating the pulsator 30 and the dehydration tank 42 in the opposite direction to remove the laundry from the dehydration tank 42, the pulsator 30 and dehydration The power is applied to the fan 47 and the heater 48 mounted between the tanks 42 or the drying device constituted by the electromagnetic wave generator, thereby applying hot air to the laundry to perform a drying function. In addition, the drying apparatus may be mounted between the dehydration tank 42 and the tub 44, and the drying function may be performed as described above even when the washing pulsator 30 and the gear box 46 are integrally formed. Of course, the washing torque can be generated by a small motor.

As described above, according to the washing machine driving apparatus according to the present invention, the drying function is further added to the bipolar motor for selectively driving the washing pulsator and the dehydration tank, so that drying immediately after dehydration without the need to dry laundry separately As a result, the function of the product can be formed, and at the same time, it can be further advanced.

Claims (5)

A washing machine driving device comprising a rotor and a stator for washing and dewatering to selectively drive a washing pulsator and a dehydration tank by a bipolar motor installed on the bottom of a washing machine, the rotating shaft being connected to the washing pulsator (31). Rotor for dehydration (40) is mounted on the outside of the) and is connected to the dehydration tank 42 by a hollow shaft, and a drying device is installed between the washing pulsator 30 and the dehydration tank 42 to wash the laundry. Washing machine drive to further add the ability to dry. The washing machine driving apparatus according to claim 1, wherein the drying apparatus comprises a fan (47), a heater (48) or an electromagnetic wave generator. The washing machine drive device according to claim 1 or 2, wherein the drying device is mounted between the dewatering tank (42) and the tub (44). The washing machine driving device according to claim 1, wherein the washing pulsator (30) and the gear box (46) are integrally formed. The washing machine driving device according to claim 1, wherein the washing direction of the washing pulsator (30) and the rotating direction of the dewatering tank (42) are simultaneously rotated opposite to each other.