JPH0968380A - Showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the drain treating work of a drain tank from being forgotten in a showcase. SOLUTION: A predetermined number of times of alarm, an alarming time and the time of endurance of alarming are set in a drain timer 6 and when a CPU 1 receives a signal at the set time, the output of alarm is ordered to an alarm buzzer 14. According to this method, the alarm can be outputted periodically in accordance with the circumstance and the like of a shop, wherein the showcase is installed, whereby the forgetting of drain treating work can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase in which water discharged from a refrigerated showcase is collected in a drain tank and taken out.

[0002]

2. Description of the Related Art In a conventional showcase, as shown in FIG. 9, a drain hole 11 is provided at the bottom of a showcase main body 10, and water such as dew from the showcase is once introduced and stored in a drain tank 12. Then, the clerk regularly checked the amount of water in the drain tank 12, and when the water was full, the drain tank 12 was pulled out and the accumulated water was discarded.

[0003]

However, the conventional wastewater treatment in the drain tank has the following problems. That is, the store clerk must regularly check whether the drain tank is full. Therefore, it takes time to check even if the water is not full, and there is a risk that water may leak if the user forgets to check.

An object of the present invention is to provide a showcase that reduces the drain tank wastewater treatment work and prevents forgetting of the drain tank treatment.

[0005]

According to a first aspect of the present invention, there is provided a showcase provided with a drain tank capable of temporarily storing water from the showcase, the drainage being set by measuring the time of drainage treatment of the drain tank. When the processing time is reached, the time measuring means outputs a signal, the waste water processing time is notified by an alarm means, and when the signal from the time measuring means is received, the waste water processing time comes to the warning means. And a control unit for instructing to notify that.

The showcase according to the second aspect of the present invention is a showcase provided with a drain tank capable of temporarily storing water from the showcase, and a full-water detecting means for detecting that the drain tank is full, and drainage of the drain tank. An alarm means for notifying that the time for treatment has arrived, and a control unit for instructing the alarm means to notify that the time for wastewater treatment has come when a full water detection signal is received from the full water detector.

In the showcase according to the invention 3, the drains of the body of the showcase are temporarily collected in the drain tank,
When the drain tank is full, drainage treatment is performed, and in a showcase where the drain tank is empty and the drain tank is full of water is longer than the time when no drainage treatment is performed, drainage drainage treatment is performed. The time measuring means that outputs the signal when the set wastewater treatment time comes, the full water detection means that detects when the drain tank is full, and the time when the wastewater treatment time comes When receiving the signal from the alarm means and the clock means,
A control unit for instructing the alarm means to notify that the drainage treatment time has come, and for instructing the alarm means to notify that the drainage treatment time has arrived when the full water detection signal is received from the full water detection means. With, and do not set the time of wastewater treatment within the time zone when wastewater treatment is not performed,
In addition, the wastewater treatment is performed within the time shorter than the difference between the time when the drain tank is empty and the drainage tank is full and the time when the wastewater treatment is not performed, relative to the start time of the time zone when the wastewater treatment is not performed Set the time of day.

A showcase according to a fourth aspect of the present invention is the showcase according to the first or third aspect, wherein the time measuring means is a timer. A showcase according to a fifth aspect of the present invention is the showcase according to any of the first to third aspects, wherein the alarm means is at least one of a buzzer and a lamp.

A showcase according to a sixth aspect of the present invention is the showcase according to the second or third aspect, in which the full water detection means is installed on the lid of the drain tank, and when the water level in the drain tank reaches a predetermined water level, it is full. It is a float switch that outputs a signal. A showcase according to a seventh aspect of the present invention is the showcase according to the second or third aspect, wherein the full water detection means detects a change in the weight of the entire tank including the amount of water in the drain tank as a positional displacement, and the predetermined positional displacement is achieved. It is a micro switch that outputs a full water signal when is detected. The showcase according to invention 8 is invention 2
Alternatively, in the showcase of the invention 3, the full water detecting means is an ultrasonic switch installed above the drain tank and outputting a full water signal when detecting that the water level in the drain tank reaches a predetermined water level.

According to the means of the first aspect of the present invention, the clerk can know that the time for the wastewater treatment work has come, so that the wastewater treatment work for the drain tank is prevented from being forgotten. According to the means of the invention 2, the clerk knows that the drain tank must be filled with drainage water because the drain tank is full, so that the drain tank drainage work can be prevented from being forgotten and only when the drain tank is full of water. Since the processing is completed, the processing work is reduced.

According to the means of the invention 3, since the alarm does not sound due to full water during a time when the wastewater treatment is not performed, such as at night when there is no store clerk, the wastewater treatment work of the drain tank is reduced. Further, when the timekeeping means is a timer as in the fourth aspect of the invention and the alarm means is at least one of a buzzer and a lamp as in the fifth aspect, it is easy to set the time and confirm the alarm.

Further, if the full water detecting means is the above-mentioned float switch, micro switch or ultrasonic switch as in the sixth to eighth aspects, the full water state can be detected more easily and the drain tank wastewater treatment work can be performed. It is possible to prevent forgetting of treatment and to reduce treatment work because treatment is required only when the water is full.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

(1) Invention 1 FIG. 1 is a configuration block diagram showing an embodiment of Invention 1. Reference numeral 1 is a CPU for controlling the entire apparatus, ROM2, RA
It is connected to M3. Reference numeral 6 is a drain timer for notifying the drain processing, and sets a preset number of alarms per day, a time at which an alarm signal is issued, and a buzzer output time, and sends a signal to the CPU 1 at the set time. Reference numeral 4 is an alarm buzzer, and 5 is a buzzer stop switch.

FIG. 4 is a schematic diagram of the lower portion of the showcase to which the present invention is applied. The drainage from the showcase body 10 is collected in the drain tank 12 through the drainage hole 11 and the drainage pipe. An electrical equipment box 13 is arranged at the bottom of the showcase body 10, and the drain timer 6 and the CPU 1, ROM 2, and RAM 3 are provided there.
Is installed. In addition, 5 is a buzzer stop switch, 1
4 is a condensing unit.

The operation of the above embodiment is as follows. For example, as shown in FIG. 5, the drain timer 6 sets the number of times alarms are set twice and the alarm output times are 8:00 and 20:00.
0, set the buzzer output time to 5 minutes, 10 minutes. Based on this setting, at each set time, the CPU 1 receives a signal from the drain timer 6 and sounds the alarm buzzer 4 for the set time.

As a result, since the store clerk knows that the drain tank is almost full, it does not have to be regularly checked as in the conventional case. Also, since it can be freely set by the drain timer, it can be set according to the circumstances of the store. It is preferable that the set time of the drain timer is set to about 1 hour before the defrosting time and the buzzer output time is set to 5 to 10 minutes according to the environment of the store, as shown in FIG. In addition to the buzzer warning, a lamp may be used for notification.

The above-mentioned settings relating to the alarm may be set by the drain timer 6 itself, or may be input from a keyboard or the like (not shown) and stored in the RAM 3, and when the set time comes, the CPU 1 The alarm buzzer 4 may be sounded in accordance with the instruction. (2) Invention 2 FIG. 2 is a configuration block diagram showing an embodiment of Invention 2.

This apparatus has a construction in which the drain timer 6 in the above invention 1 (FIG. 1) is removed and a full water detecting means 7 is added. The full water detection means 7 sends a full water detection signal to the CPU 1 when the drain tank is full. The CPU 1 receives this and sounds the alarm buzzer 4. By this operation, the store clerk can know that the drain tank is full, so that it is not necessary to regularly check the drain tank. In addition, the warning is output only when the water is full, so the number of wastewater treatments throughout the year can be reduced.

The following devices can be used as the above-mentioned full water detection means. (A) Full water detection means by float switch FIG. 6 is a diagram showing full water detection means using a float switch, FIG. 6 (a) is an overall configuration diagram, and FIG. 6 (b) is an enlarged configuration diagram thereof. A float switch mounting lid 60 is provided on the drain tank 12, and a float switch 61 is installed here.
When the water level in the drain tank 12 reaches a predetermined full water level, the float 62 rises and outputs a full water detection signal. (B) Full-Water Detection Means Using Micro Switch FIG. 7 is a block diagram of full-water detection means that uses micro switches.

The drain tank 12 is slightly inclined and supported by a spring material 71 at the center of the bottom of the tank with one side of the lower part as a fulcrum 73. As long as the amount of water in the drain tank 12 is small, the tank is lifted by the spring member 71, so the micro switch 7 provided on the opposite side of the fulcrum 73
The 0 contact is not turned on. When the water level reaches a predetermined level, the weight of the tank and the water pushes down the micro switch 70 to turn it on, and outputs a full water detection signal. (C) Full Water Detecting Means Using Ultrasonic Switch FIG. 8 is a block diagram of full water detecting means using an ultrasonic switch.

An ultrasonic switch 80 is installed above the drain tank 12, and when the water level in the drain tank 12 reaches a predetermined level, the ultrasonic wave is detected by reflection of sound waves and a full water detection signal is output. (3) Invention 3 FIG. 3 is a configuration block diagram showing an embodiment of Invention 3.

The third aspect of the invention is a combination of the first aspect and the second aspect. That is, the full water detection means 7 shown in the configuration of the invention 2 (FIG. 2) is added to the configuration of the invention 1 (FIG. 1). The operation of each unit is similar to that described above. In the present invention, when the time from when the drain tank is empty to when the drain tank is full is longer than the time when the wastewater treatment is not performed (for example, at night when there is no store clerk), the time when the tank is full However, it is possible to set the time so that the wastewater treatment is not performed during the time zone, that is, the wastewater treatment is completed just before night time, for example.

This makes it possible to prevent the alarm from being output at night.

[0024]

According to the first aspect of the present invention, when the drainage treatment time is set by the timekeeping means, it is known that the drainage treatment time is periodically alarmed and it is possible to prevent forgetting the wastewater treatment work. Also, the processing time can be set according to the circumstances of the store. According to the second aspect of the present invention, since the drain water discharge process is warned by the full water detecting means when the water is full, it is possible to prevent forgetting of the process, and since the process warning is issued only when the water is full, it is possible to reduce the number of times of drainage process and reduce the drainage work.

According to the third aspect of the invention, since the drain processing time can be set regularly by the time measuring means and the full water detection means, and the alarm is issued even when the water is full, the alarm is not output when the waste water treatment is not performed at night. You can Further, by using a timer as a time measuring means and a buzzer or a lamp as an alarming means, it is possible to easily set or confirm the wastewater treatment.

Further, by using a float switch, a micro switch, or an ultrasonic switch as the full water detection means, full water can be easily detected.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of a showcase that is an embodiment of the first invention.

FIG. 2 is a configuration block diagram of a showcase that is an embodiment of the second invention.

FIG. 3 is a configuration block diagram of a showcase that is an embodiment of the invention 3;

FIG. 4 is a diagram showing a schematic configuration of a showcase of the invention based on FIG.

FIG. 5 is a diagram showing an example of time setting of the timekeeping means based on the invention of FIG.

6A and 6B are diagrams showing an example in which a float switch is used as a full water detection means, FIG. 6A is an overall configuration diagram, and FIG. 6B is an enlarged configuration diagram.

FIG. 7 is a diagram showing an example in which a micro switch is used as a full water detection unit.

FIG. 8 is a diagram showing an example in which an ultrasonic switch is used as a full water detection means.

FIG. 9 is a diagram showing an overall configuration of a showcase.

[Explanation of symbols]

1 ... CPU, 2 ... ROM, 3 ... RAM, 4 ... Alarm buzzer, 5 ... Buzzer stop switch, 6 ... Drain timer, 7 ...
Full water detection switch, 10 ... Showcase body, 11 ... Drain hole, 12 ... Drain tank, 13 ... Electrical box, 14
... Condensing unit, 60 ... Float switch mounting lid, 61 ... Float switch, 62 ... Float, 6
3 ... Lead wire, 70 ... Micro switch, 71 ... Spring material, 72 ... Micro switch stopper, 73 ... Support point, 8
0 ... Ultrasonic switch.

Claims (8)

[Claims] 1. A showcase provided with a drain tank capable of temporarily storing water from the showcase, the time for drainage treatment of the drain tank is timed, and a signal is output when the set time for drainage treatment is reached. A time measuring means, an alarm means for notifying that the time of the wastewater treatment has come, and a control unit for instructing the alarm means to notify that the time of the wastewater treatment has come when a signal from the time measuring means is received. Showcase characterized by having. 2. A showcase provided with a drain tank capable of temporarily storing water from the showcase, and a full water detection means for detecting that the drain tank is full, and a drain tank drainage treatment time. A show characterized by including a warning means for notifying that the water has been discharged and a control unit for instructing the warning means to notify that the time for drainage treatment has come when a full water detection signal is received from the water full detection means. Case. 3. The drain of the showcase main body is temporarily collected in a drain tank, and when the drain tank is full, drainage treatment is performed. The time from when the drain tank is empty to when it is full is drained. In a showcase that is longer than the time when no treatment is performed, the drain tank is filled with water and the timing means that outputs the signal when the drain treatment time of the drain tank is reached and the set waste treatment time is reached. When the signal from the full-water detection means that detects that the wastewater treatment time has come, and when the signal from the timekeeping means is received, the warning means is instructed to notify that the wastewater treatment time has come. In addition, when a full water detection signal is received from the full water detection means, a control unit for instructing the alarm means to notify that the time of drainage processing has come is provided. Do not set the time for wastewater treatment within the time zone when water treatment is not performed, and for the start time of the time zone when no drainage treatment is performed, A showcase characterized in that the time for wastewater treatment is set within a time shorter than the difference between the time of not performing and. 4. The showcase according to claim 1 or 3, wherein the time measuring means is a timer. 5. The showcase according to any one of claims 1 to 3, wherein the alarm means is at least one of a buzzer and a lamp. 6. The showcase according to claim 2 or 3, wherein the full water detection means is installed on the lid of the drain tank and outputs a full water signal when it is detected that the water level in the drain tank has reached a predetermined water level. A showcase characterized by an output float switch. 7. The showcase according to claim 2 or 3, wherein the full water detecting means detects a change in weight of the entire tank including the amount of water in the drain tank as a position displacement,
A showcase, which is a micro switch that outputs a full water signal when it detects that a predetermined position displacement has been reached. 8. The showcase according to claim 2 or 3, wherein the full water detection means is installed above the drain tank, and a full water signal is detected when the water level in the drain tank reaches a predetermined water level. Showcase characterized in that it is an ultrasonic switch that outputs.