JPS6252232B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In general, after food is placed in a refrigerator, it is often the case that the food is left in the refrigerator and is left to rot. Furthermore, even if food is stored in the refrigerator, it is limited to one week or less, and the storage period naturally varies depending on the food. Although users generally understand the shelf life of each type of food, they often forget that they put the food in, or forget when they put the food in, which can cause the food to go bad or lose its freshness and flavor. It has the disadvantage of being stored away.

The present invention has been devised in view of the above matters,
One week is defined as one period, and a display means such as an LED is lit to remind the user of the day of the week in which each food item is added.

The illustrated embodiment will be described in detail below.

FIG. 1 is a configuration diagram of the main parts of the present invention, and _L1 to _L7 are display means (e.g., light emitting diodes) that are displayed for each day of the week (Sunday to Saturday) and for each food or each compartment. , S ₁ is a switch that lights up the display means (any one from L ₁ to L ₇ ) located on the desired day of the week for each food or each compartment, and each time it is pressed, the display means lights up L ₁ . From L ₇
It is designed to gradually shift to and turn on. S ₂
is a switch for turning off the lit display means, and L ₁ ′ to _{L 7} ′ are schedule display means provided to correspond to the above L ₁ to _{L 7} , and the lighting switch S ₁ ′ is used to select the desired day of the week. The display means (any one from L ₁ ' to L ₇ ') located at is turned on, and the light-off switch S ₂ ' turns off the lit display means.

Now, suppose you put the meat in the refrigerator on Tuesday.
It is enough to push the set switch _S1 three times, and by doing this, the lighting position of the display means changes from Sunday to Monday to Tuesday, and stops when _L3 is lit. Therefore, by lighting the display means _L3 , it can be clearly seen that the meat storage date is Tuesday. below,
Fish and eggs can be set in the same way. Further, when the lights are turned off, the lighting of the display means _L1 to _L7 is extinguished by pushing the release switch _S2 . still,
In the case of a schedule, any one of the display means L ₁ ′ to L ₇ ′ can be turned on by operating the scheduled day of the week in the same manner as above.

FIG. 2 is an electric circuit diagram for achieving the arrangement shown in FIG. 1, showing only the lighting and extinguishing circuits of the meat display means _L1 to _L7 , and the others are the same and will therefore be omitted.

a and b are DC power supply terminals, 1 and 2 are comparators, 3 is an octal counter (e.g. TC4022),
4 is a driver, and S ₁ , S ₂ and L ₁ to _{L 7} indicate the same parts as in FIG. In addition, R ₁ to R ₁₂ are resistances,
C ₁ and C ₂ are capacitors.

First, by pushing the switch _S2 once, the output of the comparator 2 changes from low level L to high level H, and a clear signal is sent to the counter 3, which is reset. Next, by pushing the switch _S1 once, the _Q1 output of the counter 3 changes from L to H, and only the display means _L1 lights up due to the action of the driver 4. Further, each time the switch _S1 is pressed, the lighting position of the display means shifts sequentially from _L2 (Monday) to _L3 (Tuesday).

In FIG. 3, the user can set the lights to indicate both the day the food was placed in the refrigerator and the storage period date. That is, "red" is displayed on display means _L8 to _L14 .
Alternatively, two-color light-emitting diodes that emit light in the "edge" color are used, and the storage date and expiry date of the food are displayed by the different colors of the two-color light-emitting diodes. _G3 is a switch for setting the storage date, _S4 is a switch for setting the storage date, and _S5 is a switch for canceling the lighting of all display means.

Now, if you want to store meat or fish on Monday,
Push the switch _S3 twice to light up the display means _L9 . At this time, the display means _L9 emits red light. Next, press Switch S ₄ and display the shelf life corresponding to the food, which in this case corresponds to Thursday.
Turn on L ₁₂ . The emitted light color at this time is a border color, and the storage date and preservation date can be identified by the difference in the emitted light color. The two-color light emitting diodes L ₈ to _{L 14} have a built-in chip that emits red light and a chip that emits edge color light.

Fig. 4 is an electrical circuit diagram to achieve Fig. 3, in which the push operation of switch _S3 causes the output of any one of counter 3 _Q1 to _Q7 to become L-H, and by the action of driver 4. Then, the red light emitting chips of the display means _L8 to _L14 corresponding to the output terminals of the counter 3 are energized and emit red light. This shows the date the food was stored. Next, if you want to set the shelf life of the food, press switch _S4 appropriately and the output terminal _Q1 ' of the other counter will be set.
The signals are sequentially outputted from _Q7 ', and the chips that emit the edge colors of the display means _L8 to _L14 corresponding to the output terminals are energized by the action of the driver 4'. In the above embodiment, since the desired storage date is Thursday, it is sufficient to push the switch _S4 five times to cause the display means _L12 to emit green light. Incidentally, when the switch _S5 is pressed, all of the display means _L8 to _L14 are turned off.

FIG. 5 shows a refrigerator having the function shown in FIG. 1, which is further adapted to display the temperature of the food storage area using the same display means. That is, setting and canceling the storage date of food is performed by switch _S6 or switch _S7 in the same manner as described above, and when switch _S8 is pushed, the display means L15 to ₁₅ are displayed according to the temperature level of the food storage for the pushing time. The lighting position of L ₂₁ moves from side to side and lights up. Therefore,
The temperature inside the food storage can be recognized by attaching identification characters of low temperature←normal→high temperature or by attaching numbers (in 2°C increments) to the lowest part of the display means _L15 to _L21 .

FIG. 6 is an electrical circuit diagram for achieving the configuration shown in FIG. 5, and the same parts as those in the above embodiment are designated by the same numbers. When the switch _S8 is pressed, the temperature measuring circuit 5 is energized, current flows through one of the bases of the driver 6, and one of the display means _L15 to _L21 lights up, allowing the temperature level to be determined. In this embodiment, the storage date of the food and the temperature level are displayed at the same time, but when the temperature level is displayed, that is, when switch _S8 is pressed, the storage date of the food is displayed. It is also possible to shut off the display circuit and display only the temperature level. Furthermore, if a microcomputer is used and a clock is added with a counting function, the user can be notified by flashing the display means or sounding a buzzer when the storage date of the food has been reached.

Since the present invention is configured as described above, it is possible to manage both the date of food storage and storage date based on the day of the week of the actual life cycle, and the display means is also calendar-like, intuitively showing the status of the inside of the refrigerator. This has the remarkable effect of alerting the user.

[Brief explanation of the drawing]

1, 3, and 5 are main part configuration diagrams of the refrigerator of the present invention, and FIGS. 2, 4, and 6 are the above-mentioned
The electrical circuit diagrams of FIGS. 3 and 5 are shown. _L1〜
L ₂₁ : Display means, S ₁ , S ₃ , S ₆ : Switch to set food storage date, S ₂ , S ₅ , S ₇ : Switch to cancel lighting of display means, S ₄ : Set storage date Switch, S ₈ : Switch to display the internal temperature.

Claims (1)

[Scope of Claims] 1. Indicators representing each day of the week in either the vertical or horizontal direction, and each food item or each warehouse interior in the other direction, located at each intersection of each of the above-mentioned indicators. A plurality of indicator lights are arranged, a switch that lights up the indicator lights, a switch that turns off the lit indicator lights, and the signals from the lighting switches are counted, and the signals from the lights-off switch are counted. It has a counter that is reset, and a control circuit that sequentially shifts the lighting display of the indicator lights according to the output from the counter and lights the indicator light located on the desired day of the week for each food item or each compartment. A refrigerator that is characterized by 2. Indicators representing each day of the week on either the vertical or horizontal direction, and the food or each warehouse interior on the other, and multiple indicators placed at each intersection of the above indicators. It has an indicator light, a switch that turns on the indicator light, a switch that turns off the lit indicator light, and a counter that counts the signal from the lighting switch and resets by the signal from the extinguishing switch. In the refrigerator equipped with a control circuit that sequentially shifts the lighting display of the indicator lamp according to the output from the counter and lights the indicator lamp located on the desired day of the week for each food item or each compartment, A schedule indicator light is arranged in parallel to the indicator light arranged for each food item or in each warehouse, and a switch that lights only the indicator light corresponding to the desired day of the week among the schedule indicator lights. and a switch for turning off the lit indicator light. 3. An indicator representing each day of the week in either the vertical or horizontal direction, and each food item or each warehouse interior on the other side, and a plurality of indicators located at each intersection of each of the above indicators. It has an indicator light, a switch that turns on the indicator light, a switch that turns off the lit indicator light, and a counter that counts the signals from the lighting switch and resets it based on the signal from the extinguishing switch. In a refrigerator equipped with a control circuit that sequentially shifts the lighting display of the indicator light according to the output from the counter and lights the indicator light located on the desired day of the week for each food item or each compartment, The above-mentioned indicator light is composed of a two-color light emitting diode, and two switches are provided to make the two-color light emitting diode emit light in different colors.One switch is used to set the food storage date, and the other switch is used to set the food storage date. A refrigerator characterized by being used to set a storage date. 4. An indicator representing each day of the week in either the vertical or horizontal direction, and each food item or each warehouse interior on the other side, and a plurality of indicators located at each intersection of the above indicators. It has an indicator light, a switch that turns on the indicator light, a switch that turns off the lit indicator light, and a counter that counts the signals from the lighting switch and resets it based on the signal from the extinguishing switch. In a refrigerator equipped with a control circuit that sequentially shifts the lighting display of the indicator light according to the output from the counter and lights the indicator light located on the desired day of the week for each food item or each compartment, The refrigerator is characterized in that a switch is provided in parallel with the lighting switch and the light-off switch to turn on the indicator light in response to the temperature inside the refrigerator.