KR19990027768A - How to detect horizontal and unbalanced washing machines - Google Patents

Abstract

The present invention relates to a horizontal and unbalance detection method of a washing machine that can easily detect the unbalance of the reservoir caused by the twist of the laundry during the horizontal or dewatering operation of the water tank during installation of the washing machine,

The present invention is equipped with a horizontal sensor (8) for sensing the horizontal state of the reservoir (1) as an optical signal on the top cover (3) of the washing machine and in the initial state of applying power, the optical signal emitted from the horizontal sensor The optical signal judging step 31 of detecting and determining whether the reflection of the light signal, and the imbalance warning step 32 of detecting and alerting the imbalance of the washing machine when the optical signal is reflected and received in the optical signal judging step 31, If the optical signal is not received in the optical signal determination step 31, the washing step 34 to supply water and washing when the water supply is complete, and to determine whether the washing is completed in the washing step 34, draining and dehydration if the washing is completed A dehydration step 36 to proceed, an optical signal detection step 37 for detecting and determining whether an optical signal emitted from a horizontal sensor is reflected in the dehydration step 36, and the optical signal detection step 37 ), The optical signal If not, the dehydration progress step 38 proceeds with normal dehydration, and when the optical signal is detected in the optical signal detection step 37, the debalance alarm step 39 stops dehydration and alerts the unbalance. It features.

Description

How to detect horizontal and unbalanced washing machines

The present invention relates to a horizontal and unbalance detection method of a washing machine, in particular, horizontal and unbalance detection method of the washing machine to easily detect the unbalance of the reservoir caused by the twist of the laundry during the horizontal or dewatering operation of the washing machine during installation of the washing machine It is about.

In general, when the washing machine is installed at home, the washing machine should be installed on a flat ground to prevent the noise caused by vibration and vibration during washing. However, the place where the washing machine is installed in the home is installed in an easy drainage place. The installation should keep the washing machine level.

Therefore, in the related art, in order to easily adjust the level of the washing machine to be easily installed, a separate device for detecting the horizontal level is installed on the upper or outer surface of the washing machine so that the horizontal level of the washing machine is installed by the installed horizontal device.

However, the horizontal device is only a simple function for leveling the washing machine, but has a problem that can not cope with the vibration and imbalance caused by the unbalance of the washing tank caused by the twisting of the laundry during washing. A separate safety switch is used to detect and release the unbalance by this safety switch.

As such, in the related art, in order to detect vibration caused by unbalance of the washing machine and unbalance during dehydration, it is difficult to manufacture a separate horizontal device and a safety switch, respectively.

An object of the present invention is to easily detect the unbalance of the water tank due to the horizontal state of the washing machine and the twisting of the laundry with an optical signal during the installation and dehydration of the washing machine to quickly cope with the vibration noise caused by the imbalance of the washing machine or the unbalance of the water tank. I want to be able to.

In order to realize the above object, the present invention mounts a horizontal sensor on the top cover of a washing machine, and installs a floodlight in a reservoir cover at a position opposite to the horizontal sensor to detect whether the light signal is emitted from the horizontal sensor. Determining and alerting the imbalance of the washing machine when the optical signal is received in the step, and the step of supplying and washing if the optical signal is not received in the step, and draining if the washing is completed in the step Dehydrating, detecting and determining whether the optical signal emitted from the horizontal sensor is reflected in the step; performing normal dehydration when the optical signal is transmitted without being reflected at the step; When the call is reflected, it is determined that an unbalance has occurred and an alarm is made. It shall be.

1 is a cross-sectional plan view of a washing machine equipped with a horizontal sensor used in the present invention

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

Figure 3 is a flow chart for the horizontal and unbalance detection method of the present invention washing machine

Explanation of symbols for main parts of the drawings

end; Operation signal input unit b; Micom

All; Drainage and driving part d; Water level detector

hemp; Motor drive bar; Horizontal sensing part

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

1 is a plan sectional view of a washing machine equipped with a horizontal sensor for use in the present invention, in which a top cover 3 is mounted on an upper end of an outer case 2 in which a water tank 1 is suspended. On the upper surface of the cover 4 provided at the upper end of (1), a projection hole 5 having an arbitrarily set aperture is laid, and an optical signal is placed on the top cover 3 at a position facing the projection hole 5. The horizontal sensor 8 which is a photocoupler which has the light emitting part 6 which emits, and the light receiving part 7 which receives the light signal emitted from this light emitting part 6 is attached.

Figure 2 is a schematic control block diagram of a washing machine used in the present invention, a driving signal input unit (a) for setting and inputting a series of washing operation, washing, rinsing, dehydration operation and from the operation signal input unit (a) Receives a microcomputer (b) for controlling a series of washing operations by controlling the input operation signal by a predetermined program and outputting the controlled signal to each drive unit, and receiving a control signal output from the microcomputer (b). Water supply and drainage drive unit (C) for supplying the wash water to the washing tank and draining the supplied water, and the level of the wash water supplied and drained from the water supply and drain unit (C) by the control signal output from the microcomputer (B). The water level detecting unit (D) and a motor for washing and rinsing the pulsator by rotating the pulsator forward and reverse according to the control signal of the microcomputer (B), and rotating the high speed after the washing and rinsing is completed. East (E) and, to a hayeoseo composed of a horizontal detector (F) for launching an optical signal by the control signal of the microprocessor (B) and receiving the launched optical signal.

3 is a flow chart of the horizontal and unbalance detection method of the washing machine of the present invention, mounted on the top cover (3) of the washing machine with a horizontal sensor (8) for detecting the horizontal state of the reservoir (1) with an optical signal and power An optical signal detection step 30 for detecting whether the optical signal emitted from the horizontal sensor is reflected in the applied initialization state, and an optical signal determination step for determining whether the optical signal is received in the optical signal detection step 30. 31, an imbalance alarm step 32 for detecting and warning an imbalance of the washing machine when the optical signal is reflected and received in the optical signal judging step 31, and if the optical signal is not received in the optical signal judging step 31. A water supply step 33 for supplying water, a washing step 34 for washing when water supply is completed in the water supply step 33, and a washing completion determination step 35 for determining whether the washing is completed in the washing step 34. Wow, the laundry completion judgment When the washing is completed in (35), the dehydration step 36 for draining and proceeding with dehydration, and the optical signal detecting step for detecting and determining whether the optical signal emitted from the horizontal sensor is reflected in the dehydration step 36 ( 37), and if the optical signal is not detected in the optical signal detecting step 37, the dehydration progression step 38 proceeds with normal dehydration; and if the optical signal is detected in the optical signal detecting step 37, dehydration is stopped. And the unbalance alarm step 39 to alert the unbalance is to be made.

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

First, the laundry signal to be washed in the washing tank 2 of the washing machine is put in the washing machine, and in the initialization state in which the power is applied to the horizontal sensor 8 mounted on the top cover 3 of the washing machine by applying power, the operation signal input unit. (A) When the operation signal for a series of washing administration to be washed through the microcomputer (b), the microcomputer (b) goes to the optical signal detection step 30 to control the horizontal sensor (bar) The light signal emitted from the light emitting part 6 through the horizontal sensor 8 is not transmitted to the floodlight 5 formed on the cover 4 of the water tank 1, and the cover 4 of the water tank 1 When the light is reflected on the light receiving unit 7 of the horizontal sensor 8 is detected, and then the optical signal judging step 31 is detected and the light signal is received from the horizontal detecting unit (bar). In the microcomputer (b), the light emitting unit 6 of the horizontal sensor 8 is used. Since the light signal emitted from the light is not transmitted through the light-permeable hole 5 installed in the cover 4 of the reservoir 1, but is reflected by the cover 4 and received, that is, the washing machine is placed in an unbalanced state, the slope of the reservoir 1 It is determined that the occurrence of the imbalance alarm step 32 to the alarm that the imbalance occurs in the washing machine to allow the user to cope with the unbalanced state of the washing machine.

However, when the optical signal is not received in the optical signal judging step 31, the optical signal emitted from the light emitting part 6 of the horizontal sensor 8 is installed in the cover 4 of the reservoir 1 in the microcomputer (b). The washing machine transmitted through the floodlight 5 is placed in a balanced state, and it is determined that the inclination does not occur in the water storage tank 1, and then the water supply step 33 is performed by a predetermined program. The water level is determined with respect to the injected washing amount, and the water supply and drainage drive unit (C) is controlled to supply water to the determined water level, and the water supply level is sensed through the water level detection unit (D) to supply water.

On the other hand, when the water supply is complete, the microcomputer (b) goes to the washing step 34 to control the motor driving part (e) to form the washing water flow while rotating the pulsator forward and reverse, and then proceeds to the washing process. Go to 35) and proceed with the washing until the predetermined washing time is completed.

Subsequently, when the washing is completed, the microcomputer (b) controls the water supply and drainage driving unit (C) to drain the contaminated washing water generated during the washing and goes to the dehydration step 36 to control the motor driving unit (e). While the washing tank is rotated at a high speed in one direction, dehydration proceeds, but in the microcomputer (b), the optical signal sensing step 37 is performed to control the horizontal sensing unit (bar) to emit light through the horizontal sensing unit (8). The light signal is emitted from the light beam and the emitted light signal is reflected on the cover 4 of the reservoir 1 without being transmitted through the floodlight 5 installed on the cover 4 of the reservoir 1. It is detected whether the light received by the light receiving portion 7 of (8), and if the emitted light signal is not detected, that is, if not received by the light receiving portion 7 of the horizontal sensor (8), the laundry contained in the washing tank (2) No kink occurs in the eccentric The light signal emitted from the light emitting part 6 of the flat sensor 8 is judged to have passed through the floodlight 5 installed in the cover 4 of the reservoir 1, and the process proceeds to the dehydration progression step 38, where the dehydration is performed. When the optical signal is received from the horizontal sensing unit (bar) in the optical signal sensing judging step 37, the dehydration proceeds to completion. The light signal emitted from the light emitting part 6 of 8) is reflected by the cover 4 without being transmitted through the floodlight 5 installed in the cover 4 of the reservoir 1, that is, in the washing tank 2 The laundry is twisted and the water tank 1 is dehydrated in an unbalanced state in which an eccentricity is generated. Thus, the motor goes to the unbalance alarm step 39 to prevent vibration noise from occurring due to an imbalance of the water tank 1. Dehydration by stopping the washing motor (5) by controlling the drive (e) In addition, also the unbalance occurs,

Will alert the user that

As described above, in the present invention, the horizontal sensor is mounted on the top cover of the washing machine, and is it an optical signal emitted from the horizontal sensor when washing in a state in which a flood hole is installed in the reservoir cover at a position opposite to the horizontal sensor. Detects and judges that an optical signal is received and detects an imbalance of the washing machine and alerts it so that the washing machine is installed in a balanced state.If the optical signal is not received, water is supplied and washed, washing is completed, drained, and dehydration proceeds horizontally. When the optical signal is not received by detecting and determining whether the optical signal emitted from the detector is received. When the laundry is not twisted, it is judged that there is no inclination in the water tank and the normal dehydration is performed and the optical signal is received. It is assumed that there is a kink in the laundry resulting in unbalance. To unbalance caused by the alarm, which will provide the effects that can be prevented in advance to prevent vibration and noise caused due to imbalance or unbalanced washing machine which occurs prior dressed damage to the reservoir caused by vibration.

Claims (1)

On the top cover (3) of the washing machine equipped with a horizontal sensor (8) for detecting the horizontal state of the reservoir (1) as an optical signal and in the initialization state when the power is applied, whether the optical signal emitted from the horizontal sensor is reflected And an optical signal judging step (31) of detecting and determining an unbalanced alarm step (32) of detecting and alerting an imbalance of a washing machine when the optical signal is reflected and received in the optical signal judging step (31). If the light signal is not received in step 31, the washing step 34 for watering and washing when the water supply is completed, and if the washing is completed in the washing step 34, draining if the washing is completed, dehydration proceeds to dehydration Step 36, the optical signal detection step 37 for detecting and determining whether the optical signal emitted from the horizontal sensor in the dehydration step 36, the reflection and the optical signal in the optical signal detection step 37 No call detected When the dehydration progress step 38 proceeds to normal dehydration, and when the optical signal is detected in the optical signal detection determination step 37, the debalance alarm step (39) to stop the dehydration and to alert the unbalance Horizontal and unbalance detection method of the washing machine.