KR20000032577A - Device for displaying electric failure for washing machine - Google Patents

Abstract

PURPOSE: A device for displaying an electric failure is provided to do a function for displaying the electric failure by using a functional material changed a color according to the change of temperature. CONSTITUTION: A displaying plate(18) of electric failure formed by a functional material is installed on a sheet of display unit(14b) of a front panel(14). A heat generating member(17) is installed in a circuit substrate(15) in the lower part. Any display is not shown on the displaying plate of electric failure(18) according as the heat generating member(17) radiates a heat by a power in the state supplied the power in a machine normally. When the power of the machinery is turned off by the electric failure, the displaying plate of electric failure is gradually cooled and a character or a symbol to inform the electric failure is shown. A user is easily recognized the power supply and the stoppage of power supply by the generating member(17) using the power of a washing machine and the displaying plate of electric failure(18) reacted according to the heat generation of the generating member.

Description

Power failure display device for washing machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of washing machines, and more particularly, to an electrostatic display device for a washing machine for visualizing that a power failure state is in use.

In general, a washing machine is a generalized laundry machine that automatically washes, rinses, and dehydrates a dirty soil by a complex action such as friction between water and laundry, friction between inner tub and laundry, and emulsification of detergent. Home appliances.

The basic system of the washing machine is classified into washing stroke, rinsing stroke, draining stroke, and dehydrating stroke according to the role. The washing and rinsing stroke is a process of washing or rinsing by the flow of water generated by flowing water supplied into the cabin. The drainage stroke is a process of discharging the water contaminated by the washing and rinsing stroke to the outside, and the dehydration stroke is a process of removing the water soaked in the laundry by centrifugal force by rotating the laundry at high speed.

1 shows an example of a washing machine having such a function, the configuration of which is an outer case 1, a top cover 2 coupled to an upper portion of the outer case, and a base coupled to a lower portion of the outer case. The appearance is achieved by (3).

The outer tub 4 is elastically installed by the damper 5 inside the outer case 1, and the inner tub 6 is rotatably installed in the outer tub 4. The pulsator 7 is rotatably installed in the lower part of the tub 6.

In addition, a drive motor 8 for generating rotational power is provided at an outer lower portion of the outer tub 4, and an inner tub 6 and an inner tub 6 are formed at a center of the outer lower portion of the outer tub 4 by a dehydration shaft 9. The clutch 11 connected to the pulsator 7 by the washing shaft 10 is provided.

The operation process of the (full automatic) washing machine configured as described above is described in detail by dividing each process as follows.

First, the washing administration checks the load received by the pulsator 7 as the weight load as the laundry is put into the inner tub (6) and automatically sets the appropriate water level and washing time, and then the water supply is made by the set water level In this water supply process, the driving motor 8 is operated.

The driving power of the driven motor 8 is transmitted to the clutch 11 through the V-belt 12. At this time, the dehydration shaft 9 and the washing shaft 10 of the clutch 11 are separated to be the washing shaft only. As the motor power is transmitted, the pulsator 7 connected to the washing shaft 10 rotates in the forward / reverse direction by the motor power to generate water flow in the wash water already supplied in the outer tub 4 to perform washing. Done.

The rinsing stroke checks the load acting on the pulsator 7 by the weight of the laundry contained in the inner tub 6, automatically sets the appropriate level and rinsing time, and then rinses by the same procedure as the washing process. Will proceed.

The drainage process is a process of discharging the contaminated water generated by the washing process and the rinsing process to the outside by opening only the drain valve 13 while the operation of the other part is stopped.

The dehydration process is a process of discharging residual water buried in the laundry to the outside after the drainage process, in which case the two shafts are connected by connecting the dehydration shaft 9 and the washing shaft 10 of the clutch 11 to the driving motor 8. By rotating at the same time by the power of the inner tub (6) connected to the dehydration shaft (9) and the pulsator (7) connected to the washing shaft 10 at the same time to rotate in one direction.

Accordingly, the laundry contained in the inner tub 6 is also rotated at a high speed to discharge the residual water soaked in the laundry to the outside by the centrifugal force applied.

The washing system proceeds for the first set time, and when the set time is reached, the machine is automatically stopped by the control of the microcomputer (not shown) and all the washing systems are completed.

On the other hand, the front panel 14 is provided on the top cover 2, and the front panel 14 is provided with a display portion 14a for outputting the operation state of the device and the input state of the command.

In addition, a controller 16 including a microcomputer and a circuit board 15 on which various circuit elements are mounted is installed below the front panel 14.

In addition, an electrostatic display member is provided on the display unit 14a of the front panel 14 to indicate when a sudden power failure occurs while the washing machine is operating.

When the blackout display member detects the blackout state by the microcomputer, the LED (not shown) is turned on, so that the blackout is engraved with the phrase “blackout” located on the upper part of the blackout so that the blackout can be easily recognized from the outside. have.

However, the conventional electrostatic display member as described above uses a separate battery for operating the battery, so when the battery life is over, it is not only troublesome to maintain and repair, such as replacing the battery with a new one. there was.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to enable the display of the electrostatic display function using a functional material that changes color with temperature changes.

According to an aspect of the present invention, there is provided a washing machine having a controller including a power failure detection circuit and a circuit function having a memory function capable of storing data required during a power failure;

A heating member is installed on the circuit board under the control of a microcomputer and generates heat when the power is turned on and does not generate heat when the power is turned off. There is no indication, and when the heat generating member does not generate heat, the electrostatic display device for washing machine, characterized in that the electrostatic display panel has a function of displaying the letters and symbols indicating that the power failure state as heat is not transmitted from the heat generating member is installed. In providing.

Figure 1a is a longitudinal sectional view showing an example of a typical washing machine

1B is a perspective view of a conventional washing machine equipped with an electrostatic display device

2 is a configuration diagram showing a first embodiment of the electrostatic display device of the present invention;

3 is a configuration diagram showing a second embodiment of the electrostatic display device of the present invention;

4 is a configuration diagram showing a third embodiment of the electrostatic display device of the present invention;

Explanation of symbols for main parts of the drawings

14b: display sheet 15: circuit board

17 heating element 18 electrostatic display panel

19: case 19a: hook

FIG. 2 is a block diagram showing a first embodiment of the electrostatic display device of the present invention, FIG. 3 is a block diagram showing a second embodiment of the electrostatic display device of the present invention, and FIG. As a configuration diagram showing a third embodiment, the electrostatic display device for a washing machine according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention generates heat when the power of the device is turned on by the control of the microcomputer on the circuit board 15 having a power failure detection circuit and a memory function capable of storing data necessary for power failure, and does not generate heat when the power is turned off. When the heat generating member 17 is installed and the heat generating member generates heat on the upper portion of the heat generating member, letters and symbols disappear due to the heat generation temperature, but when the heat generating member 17 does not heat, heat is not transferred from the heat generating member. If not, the power failure display panel 18 having a function of displaying a letter and a symbol for indicating that the power failure is installed.

On the other hand, the electrostatic display panel 18 is a so-called functional material having a characteristic that the color is changed according to the temperature change of the heat generating member 17 is applied.

At this time, the functional material recognizes the temperature change by incorporating letters and symbols by using the phenomenon that the color changes according to the change of the surrounding temperature, so that the characters and symbols are highlighted due to the change of color when a certain temperature is reached. It is a well-known technique that is mainly used to make it applicable to all of you.

The present invention is applied to the functional material as a means for informing when the washing machine is out of power, application examples are as follows.

(First embodiment)

As shown in FIG. 2, an electrostatic display panel 18 made of a functional material is provided on the display sheet 14b of the front panel 14, and a heat generating member 17 is provided on the circuit board 15 below. .

As a result, in the state where the power is normally supplied to the device, no indication is displayed on the power failure display panel 18 as the heat generating member 17 radiates heat by the power supply. As the power to the member 17 is also turned off so that no heat is dissipated from the heat generating member, the electrostatic display panel 18 is gradually cooled to display letters or symbols indicating the power failure.

In this way, the user is driven by the heating member 17 using the power of the washing machine and the electrostatic display panel 18 which reacts according to whether or not the heating member is in a heat state. It can be easily recognized from outside.

(Second embodiment)

As shown in FIG. 3, the electrostatic display panel 18 is installed in a separate case 19 provided with a hook 19a, and a hook hole 15a is formed in the circuit board 15 to insert the hook 19a. By inserting the hook 19a into the hook hole 15a, the case 19 on which the electrostatic display panel 18 is installed is coupled to the circuit board 15. As shown in FIG.

This structure is advantageous in that the case 19 on which the electrostatic display panel 18 is installed is detachably installed from the circuit board 15 so that the electrostatic display panel 18 can be easily combined and separated.

(Third embodiment)

As shown in FIG. 4, the electrostatic display panel 18 is directly attached to the upper portion of the heat generating member 17.

This structure simplifies the assembly process by attaching the electrostatic display panel 18 directly to the heat generating member 17, unlike the first and second embodiments in which the electrostatic display panel 18 should be separately installed.

On the other hand, the heat generating member 17 is applicable as long as it generates heat by the power of the device, for example, the resistance (resistance), LED, heater, transformer (transformer) and the like as a circuit element.

In the electrostatic display device of the present invention configured as described above, the heat generating member 17 sharing the power of the device generates heat while maintaining the on state together when the power of the washing machine is turned on. Heat is transferred to the electrostatic display panel 18 provided in close proximity to 17).

Accordingly, since the color of the electrostatic display panel 18 does not change and letters and symbols do not appear, the user can easily recognize that the washing machine is turned on when the user views the electrostatic display panel.

On the contrary, when the power supply of the washing machine is turned off or the power supply to the washing machine is stopped due to a power failure during operation, the heat generating member 17 is also turned off and the heat generation is stopped at the same time.

Accordingly, since the heat is not transferred to the electrostatic display panel 18 and the color and the symbol appear as the color changes, the user can easily recognize that the power of the washing machine is turned off when the user views the electrostatic display panel 18.

The present invention as described above is to enable the user to easily recognize that the power failure state from the outside of the device by using a heat-generating member using the power of the washing machine and the functional material that changes color as the temperature changes, using the power of the device As a result, it is easier to use than the existing device that had to replace the battery each time, and it also has the advantage of reducing the cost of replacing the battery.

Claims (4)

A washing machine having a controller including a power failure detection circuit and a circuit board having a memory function capable of storing data necessary during a power failure; A heating member is installed on the circuit board under the control of the microcomputer and generates heat when the power of the device is turned on and does not generate heat when the power is turned off. One side of the heat generating member does not appear any indication by the heat generating temperature when the heat generating member, and when the heat generating member does not generate heat as a letter and symbol indicating that the power failure state is not transferred from the heat generating member The electrostatic display device for a washing machine, characterized in that the electrostatic display panel having a. The method of claim 1, The electrostatic display panel is a electrostatic display device for a washing machine, characterized in that the functional material having a characteristic that disappears or appears as the color and change as the temperature changes. The method of claim 1, Install the electrostatic display panel in a separate case equipped with a hook, By forming a hook hole in the circuit board, The electrostatic display device for a washing machine, characterized in that the electrostatic display panel is coupled to the substrate by inserting the hook of the case into the hook hole of the circuit board. The method of claim 1, An electrostatic display device for a washing machine, wherein the electrostatic display panel is directly attached to an upper surface of the heat generating member.