JP3147339U - Socket with temperature sensitive control alarm - Google Patents

Abstract

The present invention relates to a socket with an extension cable, and particularly to a socket with a temperature-sensitive control alarm device capable of preventing a short circuit due to high heat.
A case 10 is provided with a plug 21 at one end and a cable 20 inserted into the case at the other end, distributed on the surface of the case, and below the cable. A plurality of insertion holes 30 that are electrically connected and provided with conductive elastic pieces, respectively, and a plurality of temperatures that are respectively provided at the centers of the insertion holes and detect the temperature of the insertion holes. A sensor 40, a plurality of display lamps 50 provided in the vicinity of each insertion hole, an alarm device 60 provided in the case, and a control provided in the case and having a microprocessor Circuit 70.
[Selection] Figure 1

Description

The present invention relates to a socket with an extension cable, and more particularly to a socket with a temperature sensitive control alarm that can prevent a short circuit due to high heat.

Conventionally, a socket with an extension cable has a plurality of insertion holes in the case, and each insertion hole is provided with an elastic piece having conductivity, and these elastic pieces are metal pieces of plugs to be inserted. And can be electrically connected stably. The elastic piece is connected in series with one end inserted into the case of the cable, and the other end of the cable is provided with a plug. When the plug is inserted into a streetcar socket, the elastic piece A current is passed through.

However, when a plug is inserted into a conventional socket with an extension cable, if the cable is broken or the contact between the plug and the elastic piece is poor, the insertion hole generates heat and the cable is short-circuited to ignite. There was a fear.

The main object of the present invention is to provide a socket with a temperature-sensitive control alarm that can prevent a short circuit due to high heat.

According to the temperature-sensitive control alarm socket according to claim 1 of the present invention,
One end is provided with a plug and the other end is inserted into the case; and
A plurality of insertion holes which are distributed on the surface of the case and under which are provided electrically conductive elastic pieces electrically connected to the cable;
A plurality of temperature sensors provided at the center of each of the insertion holes, and detecting a temperature of the insertion hole;
A plurality of indicator lamps provided in the vicinity of each insertion hole;
An alarm device provided in the case;
A control circuit provided in the case and having a microprocessor;
The microprocessor of the control circuit obtains a signal from a temperature sensor provided in each insertion hole and compares it with a set overheat temperature value, and when the temperature of the insertion hole exceeds the overheat temperature value. Is a socket with a temperature sensitive control alarm device, characterized in that a display lamp provided in the vicinity of the insertion hole is turned on and the alarm device emits an alarm sound.

According to the socket with a temperature-sensitive control alarm device according to claim 2 of the present invention, a relay is interposed in the cable, and the temperature of any one or a plurality of insertion holes exceeds the overheat temperature value The power of the relay is turned off by the microprocessor.

According to the temperature-sensitive control alarm socket according to claim 3 of the present invention,
One end is provided with a plug and the other end is inserted into the case; and
A plurality of insertion holes which are distributed on the surface of the case and under which are provided electrically conductive elastic pieces electrically connected to the cable;
A plurality of temperature sensors provided at the center of each of the insertion holes, and detecting a temperature of the insertion hole;
A display panel for displaying the temperature and the series number of each insertion hole;
A control circuit provided in the case and having a microprocessor;
The microprocessor of the control circuit obtains the signal from the temperature sensor provided in each insertion hole and compares it with the set overheat temperature value, and the temperature of all the insertion holes exceeds the overheat temperature value. If not, the display panel displays the series number and temperature of each insertion hole in the cycle, and if the temperature of any of the insertion holes exceeds the overheating temperature value, the display panel A socket with a temperature sensitive control alarm device, wherein the series number and temperature of only the insertion hole exceeding the overheat temperature value are displayed, and the alarm device emits an alarm sound.

According to the temperature-sensitive control alarm socket according to claim 4 of the present invention, a relay is interposed in the cable, and the temperature of any one or a plurality of insertion holes exceeds the overheating temperature value. The power of the relay is turned off by the microprocessor.

(Effect of device)
According to the socket with a temperature sensitive control alarm device of the present invention, there is an effect that a short circuit due to high heat can be prevented.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, refer to FIG. 1 and FIG. The socket with temperature sensitive control alarm device according to the present invention includes a case 10, a cable 20, a plurality of insertion holes 30, a plurality of temperature sensors 40, a plurality of display lamps 50, an alarm device 60, and a control circuit 70. And.

The case 10 has a cable 20, the cable 20 is provided with a plug 21 at one end, and the other end is inserted into the case 10. The plurality of insertion holes 30 are distributed on the surface of the case 10, and below them are electrically connected elastic pieces (not shown) electrically connected to the cable 20. Yes. The plurality of temperature sensors 40 are respectively provided at the centers of the insertion holes 30 and detect the temperature of the insertion holes 30. The plurality of display lamps 50 are respectively provided in the vicinity of the insertion holes 30. The alarm device 60 and the control circuit 70 are provided in the case, and the control circuit 70 includes a microprocessor 71.

Reference is also made to FIGS. The control circuit 70 converts AC power taken from the cable 20 into 5 volt DC power by a power supplier 72 and supplies it to the microprocessor 71, and a vibrator 73 is electrically connected to the microprocessor 71. ing. Each temperature sensor 40 detects the temperature of each insertion hole 30, converts the detected AC signal into a DC signal by the converter 74 and transmits it to the microprocessor 71, and the DC signal is set by the microprocessor 71. When the temperature of the insertion hole 30 exceeds the overheat temperature value compared to the overheat temperature value (for example, 60 ° C.), the display lamp 50 provided in the vicinity of the insertion hole 30 is turned on, and the alarm device 60 emits a warning voice.

Reference is also made to FIG. When the temperature of all the insertion holes 30 drops to 55 ° C., which is lower than the superheat temperature value (for example, 60 ° C.), the display lamp 50 and the alarm device 60 are turned off.

Reference is also made to FIGS. This embodiment is almost the same as the embodiment shown in FIG. 2 and FIG. 3, but a relay 80 is interposed in the cable 20, and the temperature of any one or a plurality of insertion holes 30 is the overheat temperature. When the value is exceeded, the power of the relay 80 is turned off by the microprocessor 71.

Reference is also made to FIGS. This embodiment is almost the same as the embodiment shown in FIGS. 1 and 2, but a display panel 51 is adopted instead of the display lamp 50, and the display panel 51 allows the temperature and series number of each insertion hole 30 to be changed. 512 is displayed.

The microprocessor 71 of the control circuit 70 obtains a signal from the temperature sensor 40 provided in each insertion hole 30 and compares it with the set overheat temperature value, and the temperature of all the insertion holes 30 is determined. When the overheat temperature value is not exceeded, the display panel 51 displays the series number and temperature of each insertion hole 30 in a cycle, and the temperature of any one or more of the insertion holes 30 is the overheat temperature value. In the case of exceeding, the display panel 51 displays the series number and temperature of only the insertion hole 30 whose temperature has exceeded the overheat temperature value, and the alarm device 60 emits an alarm sound.

Reference is also made to FIG. This embodiment is substantially the same as the embodiment shown in FIG. 7, except that a relay 80 is interposed in the cable 20, and the temperature of any one or a plurality of insertion holes 30 exceeds the overheating temperature value. In that case, the power of the relay 80 is turned off by the microprocessor 71.

It is a schematic diagram which shows the external appearance of the socket with a temperature sensitive control alarm device which concerns on Example 1 of this invention. It is a block diagram which shows control of the socket with a temperature sensitive control alarm device which concerns on Example 1 of this invention. It is a flowchart of FIG. It is another block diagram which shows control of the socket with a temperature sensitive control alarm device which concerns on Example 1 of this invention. It is a flowchart of FIG. It is a schematic diagram which shows the external appearance of the socket with a temperature sensitive control alarm device which concerns on Example 2 of this invention. It is a block diagram which shows control of the socket with a temperature sensitive control alarm device which concerns on Example 2 of this invention. It is another block diagram which shows control of the socket with a temperature sensitive control alarm device which concerns on Example 2 of this invention.

Explanation of symbols

10: Case,
20: cable,
21: Plug,
23: oscillator,
30: insertion hole,
40: temperature sensor,
50: Indicator lamp,
51: Display panel,
60: Alarm
70: control circuit,
71: Microprocessor,
72: Power supplier (AC100V to DC5V),
73: Vibrator
74: Converter (AC to DC converter),
75: Driver (buzzer driver),
76: Panel driver,
80: Relay,
511: display temperature,
512: Series number

Claims (4)

Case 10 and
A plug 21 is provided at one end, and the cable 20 is inserted into the case at the other end;
A plurality of insertion holes 30 that are distributed on the surface of the case, and are provided with elastic pieces that are electrically connected to the cable and have electrical conductivity below the cables;
A plurality of temperature sensors 40 provided at the centers of the insertion holes, respectively, for detecting the temperature of the insertion holes;
A plurality of display lamps 50 provided in the vicinity of each insertion hole;
An alarm device 60 provided in the case;
A control circuit 70 provided in the case and having a microprocessor 71;
The microprocessor of the control circuit obtains a signal from a temperature sensor provided in each insertion hole and compares it with a set overheat temperature value, and when the temperature of the insertion hole exceeds the overheat temperature value. Is a socket with a temperature-sensitive control alarm device, characterized in that a display lamp 50 provided in the vicinity of the insertion hole is turned on and the alarm device emits an alarm sound. A relay 80 is interposed in the cable, and when the temperature of any one or a plurality of insertion holes exceeds an overheat temperature value, the power of the relay is turned off by the microprocessor. The socket with a temperature-sensitive control alarm device according to claim 1. Case 10 and
A plug 21 is provided at one end, and the cable 20 is inserted into the case at the other end;
A plurality of insertion holes 30 that are distributed on the surface of the case, and are provided with elastic pieces that are electrically connected to the cable and have electrical conductivity below the cables;
A plurality of temperature sensors 40 provided at the centers of the insertion holes, respectively, for detecting the temperature of the insertion holes;
A display panel 51 for displaying the temperature and the series number of each insertion hole;
A control circuit 70 provided in the case and having a microprocessor 71;
The microprocessor of the control circuit obtains a signal from the temperature sensor 40 provided in each insertion hole and compares it with the set superheat temperature value. When not exceeding, the display panel displays the series number and temperature of each insertion hole in the cycle, and when the temperature of any of the insertion holes exceeds the overheat temperature value, the display panel displays the temperature A socket with a temperature-sensitive control alarm, wherein the series number 512 of only the insertion hole exceeding the overheat temperature value and the temperature are displayed, and the alarm emits an alarm sound. A relay is interposed in the cable, and when the temperature of any one or a plurality of insertion holes exceeds an overheat temperature value, the power of the relay is turned off by the microprocessor. The socket with a temperature sensitive control alarm device according to claim 3.