CN2386550Y

CN2386550Y - Power-supply socket

Info

Publication number: CN2386550Y
Application number: CN 99211930
Authority: CN
Inventors: 吴宪宗
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-01
Filing date: 1999-06-01
Publication date: 2000-07-05
Anticipated expiration: 2009-06-01

Abstract

The utility model relates to a power-supply socket, comprising a socket main body, extended power wires which are extended from one side of the main body, and a power off switch which is in series connected with the power wires, wherein, the surfaces of the socket main body are provided with an opening; a dial gauge of electric quantity, which displays current using quantity of current, is fixedly sheathed on the openings; the dial gauge of electric quantity is connected in series with the switches; the scales displaying areas of the dial gauge of electric quantity are provided with alarm marking of safe quantity and dangerous quantity; the utility model also comprises an alarm circuit; the power wires of power supply is connected with a thermally-sensitive element; the thermally-sensitive element is connected with a voltage comparator; the voltage comparator is connected with the alarm circuit. When current is greater than a predetermined value, the comparator outputs a positive voltage used for driving an alarm circuit. The power-supply socket can display electric power consumption and overload condition.

Description

Supply socket

The utility model relates to a kind of supply socket, particularly a kind of supply socket that shows power consumption and overload.

At present, supply socket is used general, general existing supply socket is to connect a power lead with a jack body mostly, and on this jack body, establish with a plurality of jacks, plug for multinomial electrical appliance of while, but, this kind simple type socket is often because of the electricity consumption load too high of electrical appliance, and makes the battery main switch escape, causes and uses difficulty, therefore, some socket adds fuse or no-fuse switch in its inside, when making load abnormal, utilizes the fusing of fuse or the escape of switch, constitute the safety of safeguarding electricity consumption, though but these structures can reach and prevent to transship and disappearance that trigger wire cocks off, can't understand the current loading amount of this socket at present before power breakdown, it is too high to differentiate the electric appliance load that socket plugged, and makes suitable advance preventing emergency measure.

Main purpose of the present utility model is to provide a kind of supply socket of tool electric weight demonstration, it is provided with a jack body, one side of body is established a perforate, be nested with for an electric weight dial gauge, dial gauge gang socket power lead makes the dial gauge indication be inserted in the load capacity of the electrical equipment on the jack, is able to clear demonstration the by the data of this dial gauge indication, when the load too high, suitably adjust the electricity consumption situation of electrical appliance for the user.

The supply socket that can send the caution sound when another purpose of the present utility model is to provide a kind of load too high.

The purpose of this utility model can reach by following measure:

Supply socket of the present utility model comprises a jack body, and body one side is extended power lead, and establishes a cut-off switch that is connected in series with power lead in addition, it is characterized in that:

An opening is offered on the jack body surface, and cover solid shows the electric weight dial gauge of estimated current consumption, and the electric weight dial gauge is connected in series with switch.

Wherein: the display scale of described electric weight dial gauge can separate the alert flag of safe dose and dangerous amount.

Wherein: also can comprise a warning circuit; Connect a temperature-sensitive element on the described power lead, temperature-sensitive element connects a voltage comparator, and voltage comparator connects warning circuit, and electric current is during greater than a predetermined value, and comparator output one drives the positive voltage of warning circuit.

Wherein: described temperature-sensitive element can be thermistor, and described voltage comparator is an operational amplifier.

Wherein: described temperature-sensitive element can comprise that a potsherd and is attached to the temperature-sensing element on the potsherd.

Compared with prior art, the utlity model has following effect:

The utility model removes and can to carry out outside the electricity consumption adjustment, during load too high, still can utilize an electronic circuit to produce caution or speech sounds by the apparent situation of looking power consumption of indication when using, and reminds the user, prevents the electricity consumption load too high and trigger wire cocks off.

Conjunction with figs. and embodiment are described in detail as follows the utility model:

Description of drawings:

Fig. 1 is a perspective exploded view of the present utility model.

Fig. 2 is the schematic diagram that is decorated with color or alert flag on the utility model electric weight dial gauge display scale.

Fig. 3 is the perspective exploded view of another embodiment of the utility model.

Fig. 4 is the circuit diagram of Fig. 3 preferred embodiment.

As shown in Figure 1, 2, the utility model is provided with a jack body 10, body 10 1 sides are extended power lead 11, body 10 another sides are provided with a cut-off switch 12 that is connected in series with power lead 11, an opening 13 is established on body 10 surfaces, solid for an electric weight dial gauge 20 covers, be decorated with color or alert flag on the display scale 21 of electric weight dial gauge 20 to distinguish safe dose and dangerous amount, the inserted sheet and cut-off switch 12 that makes electric current in the body 10 of flowing through, the dial gauge 20 of also flowing through as can be known shows present electric current consumption; When the magnitude of current of the power lead 11 of flowing through during less than the safe load capacity of power lead 11, the display pointer 22 of its dial gauge 20 must refer in the zone of safe dose, and when the magnitude of current of the power lead 11 of flowing through during greater than the safe load capacity of power lead 11, the display pointer 22 of dial gauge 20 must refer in the zone of dangerous amount, so the user is inserted in the plug of electrical appliance on the jack body 10, and when electrical appliance moves, except the user can be learnt the present electricity consumption situation by dial gauge 20 at any time, if the display pointer 22 of dial gauge 20 is during near the juncture area that refers in safe dose and dangerous amount, the user is just known do the electricity consumption adjustment, when perhaps power consumption surpasses nominal load, automatically cut off the electricity supply by cut-off switch 12, so the power lead 11 under the situation just can maintain under the safe work state, the situation that electric wire cocks off takes place in not reason overload and heating and outer field insulating barrier is melted.

Please consult Fig. 3 simultaneously, shown in 4, another embodiment of the present utility model, mainly be potsherd (P.T.C.) 15 or the thermistor that connects a negative resistance coefficient in mains terminals, when electric current excessive, when potsherd 15 temperature are risen, temperature detecting element (SENSOR) 151 is with its temperature of sensing and the resistance of change itself, and form the negative terminal of magnitude of voltage input U3 with R9, by U3 with R6, R7, the reference voltage that R8 forms is done mutual comparison, when being higher than reference voltage with voltage when temperature detecting element 151 ends, U3 exports a positive voltage and forms the D oscillating circuit with conducting U2, after amplifying via Q1, drives buzzer (BUZ) and produces the caution sound.

Claims

1. a supply socket comprises a jack body, and body one side is extended power lead, and establishes a cut-off switch that is connected in series with power lead in addition, it is characterized in that:

2. supply socket as claimed in claim 1 is characterized in that: the display scale of described electric weight dial gauge separates the alert flag of safe dose and dangerous amount.

3. supply socket as claimed in claim 1 or 2 is characterized in that: also comprise a warning circuit; Connect a temperature-sensitive element on the described power lead, temperature-sensitive element connects a voltage comparator, and voltage comparator connects warning circuit, and electric current is during greater than a predetermined value, and comparator output one drives the positive voltage of warning circuit.

4. supply socket as claimed in claim 3 is characterized in that: described temperature-sensitive element is a thermistor, and described voltage comparator is an operational amplifier.

5. supply socket as claimed in claim 3 is characterized in that: described temperature-sensitive element comprises that a potsherd and is attached to the temperature-sensing element on the potsherd, and described voltage comparator is an operational amplifier.