JP2689603B2 - Washing machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine which is operated with warm water in order to enhance the cleaning effect and to kill ticks and the like of clothes.

2. Description of the Related Art It is well known that, in order to enhance the cleaning effect, washing is carried out at a water temperature of 25 to 35 ° C., and that clothes are soaked at 55 ° C. or higher in order to kill mites and the like. Therefore, in a conventional washing machine, an electric heater (heater) is attached to the bottom of the water tank,
A water heater and a water supply device were connected so that hot water could be supplied into the washing tub.

Problems to be Solved by the Invention However, there is a risk of burns when people touch hot water of about 45 ° C or more, but it is common to open the lid and add clothes during washing, and at that time It is quite possible that the user will come into contact with hot water, but with conventional washing machines,
No consideration was given to that, and there was a safety issue for the user.

The present invention has been made in view of the above problems, and an object thereof is to improve safety.

Means for Solving the Problems In order to achieve the above object, the washing machine of the present invention is provided with a water supply temperature detecting means in a water supply device, a water tank temperature detecting means in a water tank, and a lid lock device. .

Function With this configuration, the feed water temperature is detected by the feed water temperature detecting means, and the water temperature in the water tank is detected by the water tank temperature detecting means. When any of these temperatures exceeds about 45 ° C, the lid lock device is used to close the lid. Is locked in the closed state and is unlocked when both of the temperatures are about 45 ° C. or less.

EXAMPLES Examples of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 is a washing / dehydrating tub, and a pulsator 2 for agitating clothes is rotatably arranged at the center bottom. Reference numeral 3 is a water tank containing a washing / dewatering tank. A board 4 is fixed to the outer bottom of the water tank 3, and a drive motor 5, a solenoid (not shown), a washing / dewatering switching mechanism section 6 and the like are arranged on the board 4. The outer edge portion of the substrate 4 is suspended from the upper corners of the outer frame 9 via the vibration isolator 7 and the suspension rod 8. Reference numeral 10 is a drain valve attached to the bottom of the water tank 3, and 11 is a drain hose, which communicates with the outside. 12 is a cooling fan for the drive motor 5,
Reference numeral 13 is a belt for transmitting the driving force of the drive motor 5 to the washing / dehydrating switching mechanism section 6.

A top cover 14 is provided on an upper portion of the outer frame 9, a laundry input port portion 15 is formed at a substantially central portion, and a lid 16 is openably and closably accommodated on an upper portion thereof. Reference numeral 17 is a water supply device attached to the top cover, which includes a water supply valve 18, a water injection hose 19, and a water injection mouthpiece.
Water is supplied to the water tank 3 through the water supply device 17. 21 is a power switch.

A front cover 22 is attached to the front of the top cover 14,
A control unit 23 that controls the operation of the washing machine by a microcomputer is provided.

A water tank temperature detecting means 24 for detecting the water temperature in the water tank 3 is provided at the inner bottom portion of the water tank 3, and a water supply temperature detecting means 25 for detecting the water supply temperature is provided in the water supply device 17.

26 is a lid lock device provided on the top cover 14,
When the water temperature detected by the water temperature detection means 25 is about 45 ° C or higher, or when the water temperature supplied to the water tank 3 is detected by the water tank temperature detection means 24 and is about 45 ° C or higher, the lid is closed. 16
Lock the closed position. Further, when the water supply temperature detecting means 25 detects that the water temperature in the water tank 3 is about 45 ° C. or lower (including the state in which water is not supplied) and the water temperature in the water tank 3 is about 45 ° C. or less, the lid 16 The locked state of is released and it can be opened and closed freely.

FIG. 2 is a concrete block diagram. In the figure, 27 is a current, 23a is a control circuit of the control unit 23, based on the signal of the input unit 28 of the water tank temperature detection means 24, the feed water temperature detection means 25, etc., outputs a signal to the drive circuit 23b, The lid lock device 26 is controlled, and the load 29 such as the drive motor 5 is controlled.

EFFECTS OF THE INVENTION As is clear from the above embodiments, by providing the water supply temperature detecting means for detecting the water supply temperature and the tank temperature detecting means for detecting the water temperature in the tank, and by providing the lid lock device, the water supply and the water tank When the water temperature is about 45 ° C or higher, the lid lock device operates and the lid is closed (locked), so the user may open the lid and touch hot water accidentally, causing accidents such as burns. It can be prevented in advance, and when both the water supply temperature and the water temperature in the tank are about 45 ° C or less, the lid lock is released and there is no problem in use.

As described above, it is possible to provide an extremely safe washing machine for hot water washing.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a fully automatic washing machine according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the same circuit. 3 ... Water tank, 16 ... Lid, 17 ... Water supply device, 24 ... Water tank temperature detection means, 25 ... Water supply temperature detection means, 26 ... Lid lock device.

Claims (1)

(57) [Claims] 1. A tank provided with a pulsator for stirring clothes, a water supply device for supplying water to the tank, a water supply temperature detection means provided in the water supply device, a tank temperature detection means provided in the tank, and a container included therein. It is equipped with an upper cover that is provided at the upper part of the outer frame and has a laundry entry port formed in the approximate center, a lid that can be opened and closed that is installed above the laundry entry port, and a lid lock device. Is detected by the water supply temperature detection means, and the water temperature in the water tank is detected by the water tank temperature detection means.
The washing machine is characterized in that the lid lock device locks the lid in a closed state when the temperature exceeds 50 ° C., and unlocks the lock when both of the temperatures are about 45 ° C. or less.