KR20200000967U - Bidet - Google Patents

Abstract

With the present design, even if the cleaner is used in a humid bathroom, it prevents moisture from accessing the keyboard of the cleaner and significantly improves the life of the cleaner by zeroing defects caused by corrosion of switches and other parts due to moisture, resulting in a cleaner The effect of significantly reducing the A / S cost of is expected.

Description

Cleaner {Bidet}

The present invention relates to a scrubber, and prevents the phenomenon of shortening the life of the scrubber keyboard as a result of the moisture penetrating into the scrubber keyboard when the scrubber is used in a humid bathroom, causing corrosion of parts such as tact switches in the scrubber keyboard. It relates to a highly reliable cleaner.

Generally, the cleaner is composed of a main board, a keyboard, and its peripheral parts. Normally, the cleaner main board and the cleaner keyboard are installed and used in a relatively humid bathroom, so that the circuit board [PCB] can be injected with molding liquid. After it is built in, it is used by injecting a molding solution and molding it. In addition, a urethane molding liquid is usually used as the molding liquid. Nevertheless, in the case of the cleaner keyboard, moisture penetrates into the keyboard, and defects begin to occur from six months after use, and after two years, a few tens of percent of defects occur. The present invention innovatively improves the lifespan of the washer keyboard by preventing moisture penetration into the washer keyboard.

The object of the present invention is to innovatively improve the life of the washer keyboard by making it impossible for moisture to penetrate into the washer keyboard.

In the present invention, a solution to the problem was sought in the theory that moisture moves from a high temperature place to a low temperature place. This is a well-known phenomenon that when the apples in the refrigerator are moved out of the refrigerator, moisture in the air is quickly transferred to the cold apples and water is formed on the surface of the apples. In other words, if the temperature of the scrubber keyboard is slightly raised rather than around, the moisture cannot be transferred to the scrubber keyboard. As a result, the scrubber keyboard is safe from moisture.

With the present invention, it is possible to innovatively improve the life of the cleaner keyboard.

Given that the prevalence of scrubbers is very high these days (some houses have more than 2 units per household), the economic effect of reducing the A / S cost of scrubbers can be said to be more than 10 billion won.

1 is a circuit diagram of a cleaner keyboard and a main board showing one embodiment of the present invention
Figure 2 is a picture of the actual keyboard and mainboard cleaner to which the present invention is applied
Fig. 3 is a photograph of a real object having thermal resistance attached to the bottom of the PCB of the cleaner keyboard to which the present invention is applied.
<Explanation of reference numerals for main parts of drawings>
AC IN: commercial power input plug
1: Cleaner main board
1-1: SMPS
1-2: DC / DC converter
1-3: Washer control microcomputer
2: Cleaner keyboard
F ₁ : Hughes
X ₁ : Crystal
C ₁ : 1st condenser
CN ₁ : Toilet seat temperature sensor connection terminal
CN ₂ : Inlet temperature sensor connection terminal
CN ₃ :. Water level sensor connection terminal
CN ₄ : Water temperature sensor switch connection terminal
CN ₅ : Seating switch connection terminal
CN ₆ : Ambient temperature sensor connection terminal
CN ₇ : Raw Solenoid Valve Connection Terminal
CN ₈ : Bidet nozzle motor connection terminal
CN ₉ : Cleaning nozzle motor connection terminal
R ₁ to R ₁₇ : 1st heat resistance to 17th heat resistance
R ₁₈ -R ₃₃ : 18th to 33rd resistors
Q ₁ to Q ₄ : 1st to 4th transistor
D ₁ -D ₃ : 1st to 3rd diode

[Example]

The operation principle of the present invention configured as in FIG. 1 will be described in detail with the accompanying drawings. In Fig. 1, the thermal resistance [R ₁ to R ₁₇ ] is configured inside the keyboard [2] on the keyboard.

When the output voltage of SMPS [1-1] is set to DC 12V, when 1.5KΩ heat resistance is used, the power used by one heat resistance is

to be. If 17 1.5KΩ thermal resistors are used, the total power used by the thermal resistance is

Becomes. At this time, it was confirmed that the keyboard temperature of about 110 gr increased by about 12 ° C. Increasing the number of thermal resistors used may increase the temperature of the keyboard, but in this case, it is preferable to use an appropriate amount because power consumption increases. In the embodiment of Fig. 1, the control microcomputer [1-3] of the main board [1] controls on / off [ON, OFF] of the first transistor [Q ₁ ] configured in series with the thermal resistance of the keyboard. The operation of the thermal resistance is controlled on and off. That is, when Q _{1 is turned} off, the operation of the thermal resistance stops, and when Q ₁ is turned on, the thermal resistance [R ₁ to R ₁₇ ] operates to generate heat. Also, depending on the country, power consumption in the standby state [non-sitting state] may be regulated, so it is desirable to turn off the operation of the thermal resistance in the standby state. CN ₁ ~ CN ₆ is a connector for various sensors for controlling the cleaner, and CN ₇ -CN ₉ is a terminal for connecting the motor and the valve of the cleaner. FIG. 2 is a photograph showing a state in which the keyboard and main board of the cleaner are connected, and FIG. 3 is a photograph showing a state in which heat resistance is mounted on the bottom surface of the keyboard of the cleaner.

Claims (2)

In the cleaner composed of the main board [1] and the keyboard [2], at least one thermal resistance [Q ₁ ~ Q ₁₇ ] is installed on the keyboard [2] to increase the temperature of the keyboard to higher than the ambient temperature, and the moisture approaches the keyboard. Scrubber According to claim 1,
Transistors [Q ₁ ] that turn on / off the operation of the thermal resistances [R ₁ to R ₁₇ ] mounted on the keyboard are configured in series with the thermal resistances, so that the operation of the thermal resistances is stopped in the standby state. , Washer.

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