JPS6042576A - Refrigerator with voice generator - 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 The present invention relates to a refrigerator equipped with a sound generating device that generates a sound upon detecting an abnormal rise in internal temperature.

BACKGROUND ART Conventionally, as a means for automatically detecting and warning an abnormal rise in temperature inside a refrigerator, a light emitting diode or a lamp has been used to warn the user.

However, with visual aids such as light emitting diodes and lamps, it is often easy for users to overlook them if they are not careful. It is also possible to issue a warning with an electronic buzzer, but although electronic buzzers have been improved, they are extremely difficult for humans to hear and feel cold, so this is not appropriate.

The present invention aims to improve the above-mentioned drawbacks.

One embodiment will be described below with reference to the accompanying drawings.

1 is a temperature rise detection circuit in the freezer compartment of the refrigerator, which detects the temperature rise in the freezer room temperature and
-2, resistors KR1, R2, R3 and a comparator 3. If the potential at point B, which changes with resistor R4 and freezer temperature sensor 2, is low with respect to the potential at point A determined by resistors R2 and R3, the output of comparator 3 will be aIJl, and if it is high, it will be "o". works, comparator 3
The output of is connected to one output of the OR circuit 7. Similarly 4
5. is the refrigerator compartment temperature rise detection circuit, and the freezer compartment temperature sensor 5. Resistance R
4, R5, R6 and a comparator 6. Resistor R6°Resistance R4 for the potential of 0 point determined by R6
When the potential at point D, which changes with the refrigerator room temperature sensor 6, is low, the output of the comparator 6 becomes 111", and when it is high, it operates so that it becomes aO#, and the output of the comparator 6 becomes O.
It is connected to the R circuit 7, which is powered by one person. OR circuit 7fd takes the OR of comparator 2 and comparator 6, and the output is AN
Reference numeral 09 connected to the single input of the D circuit 8 is a pulse generating circuit, which generates pulses at a cycle of 10 seconds in this embodiment, and its output is connected to the single input of the AND circuit 8. 1o
1 is a compressor operation detection device, and 11 is a compressor initial operation detection circuit consisting of a flip-flop. The initial operation detection circuit 11 determines whether or not the compressor is operated for the first time after the power is turned on, and outputs Oj' if it is the first operation, and outputs al'' otherwise. This is to prevent erroneous detection by stopping the voice generation storage circuit 12 during the first operation period because the temperature inside the refrigerator is high.

AND circuit 8 is the output of OR circuit 7 and pulse generation circuit 9
The output of the AND circuit 8 and the output of the compressor initial operation detection circuit 11 are input, and the output of the AND circuit 8 is connected to the sound generation storage circuit 12.

The voice generation/storage circuit 12 stores words to which one wants to draw attention in advance by a voice synthesis method using a word recording/editing method or a segment editing method, and outputs the corresponding words to the speaker 13.

The operation will be explained in this case. If one or both of the temperature in the refrigerator and freezer increases abnormally,
Comparator 3, 6p or both output is 11#
, and the output of the OR circuit 7 becomes a1''. If the compressor operation is other than the first operation after the power is turned on, the sound generation memory circuit 12 is activated by the output of the AND circuit 8 in synchronization with the pulse generation circuit 9. It works and says "The temperature inside the refrigerator is rising. Please be careful." once every 10 seconds on speaker 1.
Speak from 3.

In this way, the present invention provides, when the temperature inside the refrigerator rises abnormally,
For example, the warning message "The temperature inside the refrigerator is rising. Please be careful" is used to alert the user, so it is easier for the user to notice compared to visual means such as light emitting diodes or lamps. It got cold fg
In addition, compared to the case of using tape, it is possible to repeat vocalization without worrying about tape stretching or dirt on the magnetic head. Misrecognition can be prevented because the sound is not produced until the end of the cycle.

As described above, the present invention includes a temperature sensor that detects the temperature inside the refrigerator, a comparator that compares the temperature measured by the temperature sensor and outputs an output when the temperature is below a set value, a pulse generation circuit that outputs an output at regular intervals, and a compressor. an audio generation memory circuit which stores preset contents as a digital signal and outputs this signal when the three outputs of the comparator, the pulse generation circuit, and the compressor initial operation detection circuit match; Since it consists of a sound generating means such as a speaker, it not only issues a warning when the internal temperature rises abnormally, but also prevents false detection by prohibiting sound until the first compressor operation when the power is turned on is completed. It is intended to prevent

[Brief explanation of drawings]

The drawing is a diagram of a refrigerator with a sound generator according to an embodiment of the present invention. 2.5...Inside temperature sensor, 3,6...
・Comparator, 9...Pulse generation circuit, 11
... Compressor initial operation detection circuit, 12.
・ ・Sound generation memory circuit, 13...Speaker.

Claims (1)

[Claims] A temperature sensor that detects the temperature inside the refrigerator, a comparator that compares the temperature measured by this temperature sensor and outputs an output when the temperature is below a set value, a pulse generation circuit that outputs an output at regular intervals, a compressor initial operation detection circuit, and the comparator. When the three outputs of the pulse generation circuit and the compressor initial operation detection circuit match, the preset contents are stored as a digital signal and this signal is output.The sound generation memory circuit and the output of the voice generation memory circuit generate sound. A refrigerator with a sound generating device comprising a sound generating means.