KR19980050412A - Gear bite detection method of buoyancy type washing machine - Google Patents

Abstract

The present invention is a buoyancy type washing machine that is washed and dehydrated while being raised and lowered by washing water supplied during washing, and detects whether the gear descending by washing water when washing or rinsing is completed and drained after draining is correctly engaged with deshrinkage. The present invention relates to a method of detecting a gear bite of a buoyancy type washing machine, and the present invention supplies water in a washing initialization state, and after washing the water, proceeds with washing the pulsator forward and reversely, and when the washing is completed, draining is completed. After the draining and the completion of the rotation pulse washing motor rotates to detect the rotation pulse 35 and the rotation pulse detected in the rotation pulse detection step 35 whether the predetermined rotation pulse coincides with The rotating pulse judging step 36 and the rotating pulse detected in the rotating pulse judging step 36 do not coincide with the preset rotating pulse. If dehydration is stopped, and if the detected rotation pulse coincides with a preset rotation pulse, the motor is rotated and dehydrated, and the dehydration is completed. Therefore, when dehydration occurs, gears caused by mismatching between the buoyancy gear and the dehydration gear are dehydrated. It is characterized in that it is possible to prevent wear or normal dehydration in advance.

Description

Gear bite detection method of buoyancy type washing machine

The present invention relates to a method of detecting a gear bite of a buoyancy type washing machine, and more particularly, in a buoyant type washing machine which is washed and dehydrated while being lifted and lowered by washing water supplied during washing, the washing or rinsing is completed and drained after washing. The present invention relates to a method of detecting a gear bite of a buoyancy type washing machine that can detect whether a gear falling by the lower gear is correctly engaged with deshrinkage.

In general, the washing machine used in our home is designed to wash or dehydrate by controlling the gear clutch of the gear unit which transmits the rotational force supplied from the motor to the pulsator and the washing tank respectively.

That is, in the case of the washing machine, the gear clutch catches the dehydration and does not operate the gear clutch during washing, so that the washing force is transmitted to the pulsator while the rotation of the washing motor is carried out. When dehydration, the gear clutch operates the gear clutch to dehydrate the shaft. By releasing the rotational force of the washing motor is transmitted to the washing tank to dehydrate.

In the case of such a washing machine, a separate driving motor and a device are additionally applied to operate the gear clutch, thereby increasing the volume and complexity of the device.

Therefore, recently, as part of the simplification of the washing machine, there is a buoyancy type washing machine using a buoyancy gear gear, which is combined with the gear of the pulsator while rising by the washing water which is supplied during washing. , Washing while rotating in reverse, when the drainage is completed, the washing machine is dehydrated while rotating the washing tank combined with dehydration while descending.

However, in the case of the buoyancy type washing machine, there is no problem in coupling with the gear of the pulsator during washing, but during dehydration, the state of the buoyancy gear falling due to the flow of the de-shrink gear during washing is not accurately engaged.

However, the user does not know whether the dehydration gear and the buoyancy gear gear are correctly engaged in dehydration, so the dehydration proceeds as it is. Therefore, slip occurs between the gears during dehydration. In addition to wear, there was a problem that normal dehydration does not proceed.

An object of the present invention, in the buoyancy type washing machine that proceeds washing and dehydration while raising and lowering the buoyancy gear gear, if the washing is completed and if it is not matched by detecting whether the buoyancy gear and the de-shrink gear is correctly lowered during dehydration. The purpose of this is to stop dehydration and prevent the wear of gears and the normal dehydration caused by mismatching between buoyancy gear and deshrink gear during dehydration.

In order to achieve the above object, the present invention supplies water to a washing tank in an initial state, and washes while rotating the pulsator forward and reverse when water supply is completed, draining when the washing is completed, and proceeding to dehydration when the draining is completed. In case of dehydration, it detects whether dehydration is performed in the state of accurate coupling between buoyancy gear gear and deshrink gear, and if dehydration is done correctly, dehydration proceeds, and if dehydration is not made correctly, it stops dehydration. do.

1 is a schematic longitudinal sectional view of a buoyancy washing machine used in the present invention;

Figure 2 is a schematic control block diagram of a buoyancy washing machine used in the present invention

Figure 3 is a flow chart for the gear bite detection method of the present invention buoyancy type washing machine

Figure 4a is a driving pulse when the buoyancy gear of the present invention buoyancy type washing machine does not bite

Figure 4b is the driving pulse when the buoyancy gear of the present invention buoyancy type washing machine bites

* Explanation of symbols for main parts of the drawings

1: reservoir

A: Operation signal input part B: Micom

C: Water supply and drainage part D: Water level detection part

E: Motor drive bar: Rotary pulse detector

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic longitudinal sectional view of a buoyancy washing machine used in the present invention. A storage tank (1) for storing the water to be supplied during washing, a washing tank (2) for washing, rinsing, and dehydrating laundry inside the storage tank (1), and a center of the inner bottom surface of the washing tank (2); A pulsator (3) for washing the laundry with water flow friction while forming a washing water flow while rotating in reverse, a gear group (4) for reducing the rotational force in the lower portion in the center of the lower washing tank (2) of the pulsator (3); A washing shaft gear 5 meshed with the gear group 4 and a dewatering gear 6 engaged with the washing tank 2 are configured, and the dewatering gear 6 is pulled up and down by buoyancy caused by washing water. The drop detects the rotation pulse generated from the motor 8 and the motor 8 for supplying rotational force to the deshrink gear 6 on one side of the reservoir 1 with the buoyancy gear 7 engaged. It is composed of a rotating pulse detector (9).

Figure 2 is a schematic control block diagram of a buoyancy type washing machine used in the present invention, a driving signal input unit (a) for inputting a driving signal for a series of washing strokes, and the operation signal input from the driving signal input unit (a) A microcomputer (b) for controlling and outputting a signal controlled by a predetermined program for a predetermined program; a water supply / drainage driving unit (c) for supplying and draining wash water by a control signal of the microcomputer (b); Water level detection unit (D) for detecting the water level of the wash water being drained and drained from the drain driving unit (C), and a motor driving unit for washing, rinsing, and dehydrating while rotating forward and reverse by the control signal of the microcomputer (B). (E) and a rotational pulse detecting unit (bar) for detecting a rotational pulse during the dehydration rotation of the motor driving unit (e) by the control signal of the microcomputer (b).

Figure 3 is a flow chart for the gear bite detection method of the buoyancy type washing machine of the present invention, the water supply step 30 to supply water in the initialization state, and the water supply completion judgment step of determining whether the water supply is completed in the water supply step 30 31 and, if the water supply is not completed in the water supply completion determination step 31, the water supply proceeds until the water supply is completed, and if the water supply is completed in the water supply completion determination step 31, stop the water supply and proceed with the washing. Step 32, the laundry determination step 33 to determine whether the washing is completed during the washing in the washing step 32, and washing if the washing is not completed in the laundry determination step 33 After proceeding to the draining step 34 and draining the washing is completed, and if the drainage is completed in the draining step 34, the rotation to detect the rotation pulse according to the gearing state of the gear by driving the washing motor Detect step 35, the rotation pulse determination step 36 for determining whether the rotation pulse sensed in the rotation pulse detection step 35 matches a predetermined rotation pulse, and the rotation pulse determination step 36 Dehydration stop if it does not match the rotational pulse and the preset rotational pulse detected in the), and if the detected pulse coincides with the preset rotational pulse dehydration step 37 and the dehydration proceeds in the dehydration step 37 During the dehydration is completed to determine the completion of the dehydration step (38).

Referring to the operation of the present invention made as described above are as follows.

First, when the laundry is put into the washing tub 2 to wash the laundry, and the driving signal for the series of washing administrations to be washed is input to the microcomputer through the driving signal input unit a, the microcomputer (b) In the washing operation signal is controlled by a predetermined predetermined program and outputs the controlled signal to each driving unit to proceed with washing, that is, the operation signal start signal is input from the operation signal input unit (a). When the microcomputer (b) goes to the water supply step (30) to control the water supply and drainage drive (c) to open the water supply valve to start to supply the wash water to the washing tank (2), at this time by the wash water being supplied to the water tank ( The buoyancy gear 7 engaged with the dewatering gear 6 of 1) is raised while being buoyant by the washing water, and is engaged with the washing shaft gear 5 located above.

In the state where the buoyancy gear 7 is engaged with the washing shaft gear 5 by the wash water supplied as above, the microcomputer (b) goes to the water supply completion judging step 31 and the water level is supplied according to the washing amount. The water level is detected by the water level detecting unit (D) to determine whether the water supply is completed at the predetermined water supply level. If the water supply is not completed, the water supply is continuously performed, and the water supply is supplied to the determined water level. When it is completed, the microcomputer (b) controls the water supply and drainage drive (c) to turn off the water supply valve, stops the water supply, and goes to the washing step 32 for washing to control the motor driving part (e) and the motor (8). ), Forward and reverse rotation causes the buoyancy gear 7 meshed with the washing shaft gear 5 by forward and reverse rotation of the motor 8 to forward and reverse rotation, thereby forward and reverse rotation of the pulsator 3. The laundry will proceed.

While the washing process is performed while the pulsator 3 is rotated forward and reverse as described above, the washing completion determination step 33 is made to determine whether the predetermined washing is completed. If the washing proceeds continuously and the washing is completed, the microcomputer (b) goes to the drainage step 34 to drain the contaminated washing water and controls the water supply and drainage part (c) to proceed with the drainage. As the body gear 7 washes out of the water storage tank 1, the buoyancy gear 7 engaged with the washing shaft gear 5 is gradually separated from the washing shaft gear 5 and moved downward. When the drainage is completed, the buoyancy gear 7 is completely separated from the laundry shaft gear 5 to be engaged with the dewatering gear 6, wherein the buoyancy gear 7 is dewatering gear ( 6) and exact teeth It is not known whether it is in the correct state or the state of inaccurate engagement due to the flow of the deshrink gear 6 during washing. Therefore, in the microcomputer (B), the buoyancy gear gear 7 is accurately aligned with the deshrink gear 6. In order to detect the engagement, go to the rotary pulse detection step 35 to control the motor driving part (e) to rotate the motor 8, and at this time the rotary pulse detector 9 detects the rotation pulse of the motor 8 When input to the microcomputer (b), the microcomputer (b) goes to the rotation pulse judging step 36, and as shown in FIGS. 4 (a) and 4 (b), the detected rotation pulse is a predetermined predetermined value. It is judged whether or not the rotation pulse coincides with the pulse of the load state acting on the motor when the buoyancy gear 7 and the de-shrink gear 6 are correctly engaged.At this time, the detected rotation pulse is a preset rotation. Does not match the pulse In this case, in the microcomputer (B), the buoyancy gear 7 is not correctly engaged with the deshrink gear 6 so that the load does not work and the slip occurs, so that the dehydration stops to prevent dehydration. If the rotated pulse coincides with the preset rotational pulse, it is determined that the buoyancy gear gear 7 is correctly engaged with the dewatering gear 6, and the microcomputer (b) goes to the dehydration step 37 and the motor driving part (e). By rotating the motor (8) in one direction at high speed to rotate the dewatering gear (6), the buoyancy gear (7) rotates at a high speed in one direction while dehydration is made while rotating the washing tank (2) at high speed, While the dehydration is being performed, the microcomputer (b) goes to the dehydration completion judging step 38 to determine whether the dehydration is in progress. Not proceed with the dehydration by controlling the motor drive unit (E), and finally exit the dehydration When the dehydration is complete, and will be carried out the next stroke.

As described above, the present invention is a buoyancy type washing machine that proceeds washing and dehydration while raising and lowering the buoyancy gear, and when the dehydration gear is correctly assembled to the buoyancy gear which is lowered just before dehydration when washing is completed If the buoyancy gear and deshrink gear are not correctly engaged, dehydration is stopped and if the buoyancy gear and deshrink gear are correctly engaged, dehydration proceeds, so that dehydration proceeds between the buoyancy gear and deshrink gear. It is to provide an effect to prevent the wear of the gear caused by the mismatched teeth or the normal dehydration does not occur in advance.

Claims (1)

Water washing in the washing initialization state, after washing the pulsator while rotating the water forward and reverse, and if the washing is completed, after the completion of drainage and drainage, rotate the washing motor to rotate the rotating pulse detection step (35) and The rotational pulse determination step 36 for determining whether the rotational pulse detected in the rotational pulse detection step 35 matches a predetermined rotational pulse, and the rotational pulse detected in the rotational pulse determination step 36 Dehydration is stopped if the rotation pulse does not match the preset rotation pulse, and if the detected rotation pulse coincides with the preset rotation pulse, the dehydration by rotating the motor, dehydration is completed, characterized in that the gear bit detection method of the buoyancy washing machine.