JPS63223474A - Water cooler - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a pressure water cooler for cooling tap water.

Conventional Technology The water circuit of a conventional pressure-type water cooler consists of a water supply port, a tank for cooling and temporary storage, an on-off valve linked to the water supply valve, and a water fountain that serves as a drinking water port. In these water coolers, the user pressed a pedal and drank the water that came out of the fountain.

Problems to be Solved by the Invention However, in the above configuration, when there are no or few users, the water in the water circuit does not flow and remains in the tank or the like. Therefore, there is a problem in that the chlorine mixed in tap water to prevent bacterial growth and sterilization evaporates and disappears, causing bacteria to grow. In addition, there is a particular problem in that water scale and the like adhere to the inside of the tank, causing bacteria to grow.

In view of the above-mentioned problems, the present invention aims to prevent the proliferation and multiplication of bacteria within a water cooler.

Means for Solving the Problems In order to solve the above problems, the present invention provides a cleaning means using a vibrating body made of a piezoelectric vibrator in the tank, and a stop means for closing the on-off valve to stop drinking water during cleaning. After washing, open the on-off valve for a certain period of time and drink 3 beers of water.

It is equipped with a timer means for passing water through the mouth and a display means for indicating when washing is in progress.

Function The present invention can prevent bacterial growth and multiplication by cleaning the inside of the tank with the vibration of the vibrating body, and also removes water scale inside the tank.
It can provide extremely hygienic water.

In addition, by stopping drinking the water during washing, it is possible to prevent users from drinking water that contains limescale, and by allowing water to flow through the drinking port for a certain period of time after washing, the water can be kept up to the drinking port. The circuit can be rinsed to wash away residual floating matter after cleaning, preventing it from entering the mouth of the first user, and the display means that indicates when cleaning is in progress prevents the user from determining that there is a malfunction.

Embodiment FIG. 1 shows the structure of a water cooler according to an embodiment of the present invention.

In the figure, 1 is a water supply port, 2 is a cooling tank, 2a is a vibrating body made of a piezoelectric vibrator, 3 is an electromagnetic on-off valve, 4 is a fountain nozzle, 5 is a drain port, and 6 is an electromagnetic on-off valve. The electromagnetic on-off valve 3 is located in a conduit connecting the cooling tank 2 and the fountain nozzle 4. Further, the electromagnetic on-off valve 6 has one end connected to the cooling tank 2.
The other end is open and connected to the upper part of the drain port 5. The water that has come out of the fountain nozzle 4 and has not been drunk also flows into the drain port 5. 7 is a pedal, and 8 is a micro SW operated by the pedal 7.

9 is a compressor, 10 is a condenser, 11 is a fan motor, 1
2 is a fan that constitutes a well-known refrigeration cycle. Note that the evaporator is integrated with the cooling tank 2.

Reference numeral 13 denotes a power supply board, which houses electrical circuit components shown in FIG. 2.

FIG. 2 is an electrical circuit diagram, in which 14 is a power supply, 15 is a control circuit including a CPU having a timer function and a high-frequency power generation function, and 16 is an electromagnetic on-off valve 3 that operates the fountain nozzle 4.
It is a relay and contact that stops the operation during cleaning, and 17
are the relays and contacts that operate the electromagnetic on-off valve 6 that drains the water in the tank after cleaning the cooling tank 2 and 5 times. In addition, 18 is the cooling tank 2
A switch 19 controls the compressor 9 and the fan 11 depending on the temperature of the water inside, and a display lamp indicates that cleaning is in progress.

The operation of this embodiment will be explained below based on the flowchart of FIG. 3. When the water cooler is installed and the power is turned on, the timer t, which counts the cleaning cycle, is cleared and starts counting.

During normal use, when the user presses the pedal 7, the micro S
Since W8 is turned on, when the micro SW8 is turned on, the relay 16 is turned on, the electromagnetic on-off valve 3 is opened, and water comes out from the fountain nozzle 4 for drinking. During this time, a timer t is constantly compared with a preset cleaning cycle T, and when timer t1 ≧T, a cleaning operation begins. First, the timer t2 for counting the dirt removal time is cleared and counting is started. Next, the relay 16 is locked OFF so that the water cannot be drunk during cleaning, the cleaning indicator lamp 196 is turned on, and high-frequency power is supplied to the vibrating body 2a to ultrasonically clean the inside of the cooling tank 2. When the timer t2 exceeds the preset time T2, a rinsing operation in the tank 2 begins. First, the timer t3 for counting the rinsing time in the tank 2 is cleared and starts counting, and the supply of high frequency power to the vibrating body 2a is stopped. Next, the relay 17 is made conductive and the power-operated on-off valve 6 is opened to allow water in the tank to flow to the drain port 5. The water continues to flow into the drain port 5 until the timer t3 reaches the preset rinsing time T3.
When t3≧T3, a rinsing operation for the entire drinking waterway begins. First, clear timer t4, start counting,
Turn off relay 17.

Next, the OFF lock of the relay 16 is released, the relay 16 is turned on, the power-operated on-off valve 3 is opened, and water is discharged from the fountain nozzle 4. This water spraying continues until the preset time T. When t4≧T4, the cleaning operation is completed, the relay 16 is turned off to stop water spraying, the lamp 19 is turned off, and the process returns to the starting state.

Page 7 7 In this example, the cleaning cycle and dirt removal time are explained as a fixed period of time, but depending on the usage status of the water cooler and the water quality, the water cooler manager may install a switch to change the time period. good.

Effects of the Invention As described above, the present invention prevents bacterial growth and multiplication by providing a cleaning means, a means for stopping drinking during cleaning, a rinsing means for the water circuit, and an indicator lamp indicating that cleaning is in progress. Water scale etc. can be removed from the cooling tank etc., and the dirty water discharged during washing can be discharged to supply extremely hygienic water to users. In addition, the user will not be able to judge that there is a malfunction during cleaning due to the indicator lamp.

[Brief explanation of drawings]

FIG. 1 is a front view showing the internal structure of a water cooler showing one embodiment of the present invention, FIG. 2 is an electric circuit diagram showing the same embodiment, and FIG. 3 is an operation flowchart of the same embodiment. 1... Water supply port, 2... Cooling tank, 2a...
Vibrating body, 3... Solenoid on-off valve, 4... Fountain nozzle, 5... Drain port, 10... Condenser, 1
9...Display lamp. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] a water circuit having a water supply port, a tank, an on-off valve, a drinking port, and a drain port; a refrigeration cycle having a heat exchanger for cooling water in the tank; and a cleaning means for cleaning the water circuit using ultrasonic waves; drinking water stopping means for closing an on-off valve to stop drinking water during washing by the washing means; a timer means for opening the on-off valve for a certain period of time after washing is completed and allowing water to flow through the drinking port; and when drinking water is stopped and during the water passing. A water cooler equipped with an indicator to indicate when cleaning is in progress.