CN201282246Y

CN201282246Y - Mobile socket

Info

Publication number: CN201282246Y
Application number: CNU2008201497026U
Authority: CN
Inventors: 石亚飞
Original assignee: Henan Suoling Electric Co Ltd
Current assignee: Henan Suoling Electric Co Ltd
Priority date: 2008-10-14
Filing date: 2008-10-14
Publication date: 2009-07-29
Anticipated expiration: 2018-10-14

Abstract

A trailing socket comprises a plug and a plug connector, wherein the plug and the plug connector are electrically connected; the trailing socket further comprises a switch function module and an overheat protection module; the power supply end of the overheat protection module is connected with the plug; the switch function module comprises a control unit, a moving contact and a stationary contact; the moving contact and the stationary contact are connected in series on a first phase circuit of the two phases of communication circuits between the plug and the plug connector; the control unit is connected in series on a second phase circuit of the two phases of communication circuits between the plug and the plug connector; and the control signal input terminal of the control unit is connected with the control signal output end of the overheat protection module. After the trailing socket is energized and works, the overheat protection module monitors the current temperature at all times; when the temperature rises up to higher than a preset turnoff protection temperature, the control signal output end of the overheat protection module sends out control signals to the control signal input terminal of the control unit of the switch function module, so as to control the control unit and disconnect the moving and the stationary contacts. Therefore, the plug is disconnected from the plug connector, and the function of overheat protection is played.

Description

A kind of mobile socket

Technical field

The utility model relates to mobile termination, relates in particular to a kind of mobile socket that has overtemperature protection.

Background technology

At present, the mobile socket of using always in the daily life, reason such as lack of standardization if any using in use, that access times are many, it is insecure easily to cause plug connector to connect, cause heating, cause wire insulation aging,, then can cause socket to burn out even cause serious consequences such as fire if long-time heating is serious.

The utility model content

The purpose of this utility model provides a kind of mobile socket with overheat protective function.

A kind of mobile socket comprises plug, plug connector, and plug is electrically connected with plug connector, and wherein: this mobile socket also comprises switching function module, overtemperature protection module, and the feeder ear of overtemperature protection module connects described plug; The switching function module comprises control unit and sound contact; the sound contact is serially connected in first mutually on the circuit of two-phase communication line between described plug and the plug connector; control unit is serially connected in second mutually on the circuit of two-phase communication line between described plug and the plug connector, and the signal input end of control unit connects the control signal output ends of described overtemperature protection module.

Described mobile socket; wherein: described overtemperature protection module comprises temperature-sensing device, processes temperature signal unit, switch element; wherein; the signal output part of temperature-sensing device connects the signal input part of processes temperature signal unit; the control signal output ends of processes temperature signal unit connects the signal input part of switch element, and the signal output part of switch element connects the signal input end of control unit in the described switching function module.

Described mobile socket, wherein: described overtemperature protection module also comprises alarm unit, and the signal input part of alarm unit connects the alarm signal output ends of described processes temperature signal unit.

Described mobile socket, wherein: described alarm unit comprises luminous warning portion and sounding alarm portion.

Described mobile socket, wherein: described overtemperature protection module also comprises display unit, the signal input part of display unit connects the shows signal output of described processes temperature signal unit.

Described mobile socket, wherein: described switching function module comprises circuit breaker, described control unit is the control annex of circuit breaker.

Described mobile socket, wherein: described circuit breaker comprises shunt release.

The utility model adopts technique scheme will reach following technique effect:

Mobile socket of the present utility model; the overtemperature protection module detects the temperature of current mobile socket; and deliver to the overtemperature protection module after this temperature signal handled; the overtemperature protection module judges whether the temperature signal that receives is higher than its default cut off value; if the temperature value of this temperature signal reaction is higher than this default cut off value; the overtemperature protection module be control switch functional module disconnection of plug with plug connector between be electrically connected, thereby prevent that this mobile socket is overheated, prolong its useful life.

Description of drawings

Fig. 1 is the circuit theory diagrams of mobile socket of the present utility model.

Embodiment

Embodiment:

A kind of mobile socket, circuit theory diagrams as shown in Figure 1, it comprises plug, plug connector (not shown plug and plug connector among Fig. 1, two binding post m1, m2 are used for attachment plug, two binding post m3, m4 are used to connect plug connector), wherein, be electrically connected by switching function module 1 and overtemperature protection module 2 between described plug and the plug connector; Described switching function module 1 adopts the miniature circuit breaker B that has shunt release, and the fixed contact b11 of this circuit breaker B, moving contact b12 are serially connected between binding post m1 and the m3, and the control annex of this circuit breaker B is serially connected between binding post m1 and the m4.

Described overtemperature protection module 2 comprises measures display button S1, alternation is straight+5V output transformer U1, temperature sensor U2 (adopting DS18B20), signal processor U3 (adopting AT89C2051), LED light-emitting diode D1, buzzer F1, first, second switch triode Q1, Q2 (first, second switch triode Q1, Q2 all adopts the positive-negative-positive triode), relay A, LED nixie display U4 (adopting DPY 7-SEG), wherein, binding post m1 is by measuring the AC binding post that display button S1 connects transformer U1 input, binding post m2 connects another AC binding post of transformer U1 input, transformer U1 input+the 5V output cathode connects temperature sensor U2 respectively, the power supply input of signal processor U3 and the end of buzzer F1, the positive pole of LED light-emitting diode D1, one end of relay A coil, the signal output part of temperature sensor U2 connects temperature signal input 7 pin (P3.3) of signal processor U3, the negative pole of LED light-emitting diode D1 connects luminous alarm signal output ends 3 pin (P3.1) of signal processor U3 by resistance R 11, the other end of buzzer F1 connects the emitter of the first switch triode Q1, the grounded collector of the first switch triode Q1, its base stage connects sounding alarm signal output part 2 pin (P3.0) of signal processor U3 by resistance R 0, the other end of relay A coil connects the emitter of second switch triode Q2, the grounded collector of second switch triode Q2, its base stage is by control signal output ends 6 pin (P3.2) of resistance R 12 connection signal processor U3, the normally opened contact a11 of relay A, the control annex of a12 and circuit breaker B is in series; (P1.0 ~ P1.7) respectively by resistance R 10, R9, R8, R7, R6, R5, R4, the corresponding respective input that connects LED nixie display U4 of R3, signal feedback end three pins of LED nixie display U4 connect the 11st pin (P3.7) of signal processor U3, the 9th pin (P3.5), the 8th pin (P3.4) respectively to shows signal output the 12nd ~ 19 pin of signal processor U3.Temperature sensor U2 is fixed on the interior main connecting line of mobile socket, and the signal output part of temperature sensor U2 is connected with signal processor U3 by insulator pin.In addition, capacitor C 1, C2, crystal oscillator XM and resistance R 1, capacitor C 0 are the necessary minimum functional units of signal processor U3 work among the figure, and working clock frequency and the reset circuit of signal processor U3 is provided respectively.

Press and measure display button S1, temperature sensor U2 and signal processor U3 must establish beginning work by cable, temperature sensor U2 detected temperatures also is sent to the Current Temperatures signal on 7 pin (P3.3) of signal processor U3, after signal processor U3 receives this temperature signal, export corresponding shows signal to LED nixie display U4, show current measurement temperature, simultaneously, among the signal processor U3 this temperature signal and the alarming value of presetting are compared, if this temperature signal is higher than default alarming value, 2 pin (P3.0) of signal processor U3,3 pin (P3.1) are the output low level signal all, the luminous warning of LED light-emitting diode D1 energising beginning, simultaneously, the first switch triode Q1 conducting, buzzer F1 energising beginning sounding alarm; If temperature continues to raise; when the temperature signal that is transported to signal processor U3 not only is higher than default alarming value and is higher than default break-off signal value; 6 pin (P3.2) the output low level signal of overtemperature protection module 2; the coil of relay A gets; its normally opened contact a11, a12 adhesive, the control annex of circuit breaker B gets electric, and shunt opening takes off the mouthpart action; control sound contact b11, b12 disconnect, and plug connector promptly disconnects with plug and being connected.

Switching function module 1 selects for use a common miniature circuit breaker B who has shunt release as main switch; in use, can hand switch, can the automatic disconnection circuit breaker when overheated; in addition, select for use the benefit of miniature circuit breaker to be to play short-circuit protection.

Claims

1, a kind of mobile socket comprises plug, plug connector, and plug is electrically connected with plug connector, it is characterized in that: this mobile socket also comprises switching function module, overtemperature protection module, and the feeder ear of overtemperature protection module connects described plug; The switching function module comprises control unit and sound contact; the sound contact is serially connected in first mutually on the circuit of two-phase communication line between described plug and the plug connector; control unit is serially connected in second mutually on the circuit of two-phase communication line between described plug and the plug connector, and the signal input end of control unit connects the control signal output ends of described overtemperature protection module.

2, mobile socket as claimed in claim 1; it is characterized in that: described overtemperature protection module comprises temperature-sensing device, processes temperature signal unit, switch element; wherein; the signal output part of temperature-sensing device connects the signal input part of processes temperature signal unit; the control signal output ends of processes temperature signal unit connects the signal input part of switch element, and the signal output part of switch element connects the signal input end of control unit in the described switching function module.

3, mobile socket as claimed in claim 2 is characterized in that: described overtemperature protection module also comprises alarm unit, and the signal input part of alarm unit connects the alarm signal output ends of described processes temperature signal unit.

4, mobile socket as claimed in claim 3 is characterized in that: described alarm unit comprises luminous warning portion and sounding alarm portion.

5, as claim 2 or 3 or 4 described mobile sockets, it is characterized in that: described overtemperature protection module also comprises display unit, and the signal input part of display unit connects the shows signal output of described processes temperature signal unit.

6, mobile socket as claimed in claim 1 is characterized in that: described switching function module comprises circuit breaker, and described control unit is the control annex of circuit breaker.

7, mobile socket as claimed in claim 6 is characterized in that: described circuit breaker comprises shunt release.