CN206832925U

CN206832925U - A kind of socket test circuit

Info

Publication number: CN206832925U
Application number: CN201720718245.7U
Authority: CN
Inventors: 黄海林; 黄志刚; 陈志宏; 曾繁建; 韩毅辉; 黄彬彬
Original assignee: Zhangzhou City Yushan Electronic Manufacture Co Ltd
Current assignee: Zhangzhou City Yushan Electronic Manufacture Co Ltd
Priority date: 2017-06-20
Filing date: 2017-06-20
Publication date: 2018-01-02
Anticipated expiration: 2027-06-20

Abstract

A kind of socket test circuit, a kind of socket test circuit, including three female terminals, detect the voltage sense circuit of three female terminal polarity, the terminal turn-on control circuit for changing female terminal output state, LED indicating circuit and the minicell that working power is supplied to voltage sense circuit are controlled by voltage sense circuit electric signal, female terminal is connected with voltage sense circuit and terminal turn-on control circuit respectively, the voltage sense circuit is connected with terminal turn-on control circuit, and voltage sense circuit is connected with LED indicating circuit and minicell；The voltage sense circuit receives induced voltage signal caused by each female terminal and judges whether its polarity is correct, and processing detection result simultaneously sends control signal to terminal turn-on control circuit and LED indicating circuit；The control signal of the terminal turn-on control circuit receiving voltage sensor circuit transmission simultaneously cut-offs the external output voltage of female terminal.

Description

A kind of socket test circuit

Technical field

It the utility model is related to electrical detection field, more particularly to a kind of socket test circuit.

Background technology

Current market sales of socket tester implementation has two kinds；A kind of scheme is to utilize simple hardware electricity Road, neon lamp or LED are directly connected in the fire line terminal L, zero terminal N, ground wire terminal E of socket by some resistance, diode. This mode has two shortcomings：The a small number of several abnormalities of detection are merely able to, whole abnormalities can not be detected；Neon lamp or The mode that LED is lighted is irregular, and product must provide a neon lamp or the LED state table of comparisons determine it is which kind of exception for user.

Second scheme is to add MCU in circuit, and the voltage change of three terminals of socket is read come dependence using MCU Hot voltage and zero line, ground wire voltage moment judge three terminals on the contrary, zero line is identical with the ground wire voltage moment, then passed through LED socket for indicating states；The shortcomings that this mode, has：When zero line or ground wire have an open circuit, can not differentiate in residue two Which bar is live wire；When zero line and ground wire breaking together, can not test；Leak in principle be present, when fire line terminal and zero line side When son or ground wire terminal short circuit, the instruction to make mistake will be now given in the case of double fire wire；Remain a need for a LED shape The state table of comparisons determines it is which kind of exception for user.

Utility model content

The utility model proposes a kind of socket test circuit, for test socket polarity during house decoration whether just Really, and with the USB output circuits of an adjustable output voltage.

The technical solution of the utility model is as follows：

A kind of socket test circuit, a kind of socket test circuit, including three three female terminals, detection female terminal poles Property voltage sense circuit, by voltage sense circuit electric signal control change female terminal output state terminal conducting control electricity Road, the LED indicating circuit of three each states of female terminal of sign and the micro electric to voltage sense circuit supply working power Pond, female terminal are connected with voltage sense circuit and terminal turn-on control circuit respectively, and the voltage sense circuit is led with terminal Logical control circuit is connected, and voltage sense circuit is connected with LED indicating circuit and minicell；The voltage sense circuit receives Induced voltage signal caused by each female terminal simultaneously judges whether its polarity is correct, and processing detection result simultaneously sends control letter Number give terminal turn-on control circuit and LED indicating circuit；The control letter that the LED indicating circuit receiving voltage sensor circuit is sent Number and the LED that passes through different colours light and flash state to characterize the miswiring condition of each female terminal；It is described The control signal of terminal turn-on control circuit receiving voltage sensor circuit transmission simultaneously cut-offs the external output voltage of female terminal.

Wherein, the voltage sense circuit includes three respectively around three female terminals but the conduct that is not attached thereto The sensor wire of voltage induced part, three electrically connected respectively with three sensor wires and to caused induced electricity in sensor wire Flow the signal signal amplifier being amplified and the controller being connected with three signal amplifier output ends；The controller Three output terminals As, B, C are connected to terminal turn-on control circuit, and the controller also has an output end D to be connected to LED instruction electricity Road；The sensor wire receives induced voltage signal caused by each female terminal and is sent to signal amplifier；The signal Amplifier receives the induced voltage signal that sensor wire is sent and it is amplified, then by the induced voltage signal after amplification It is sent to controller；Induced voltage signal after the amplification that the controller receiving signal amplifier is sent and to signal at Reason, the then control signal according to corresponding to the testing result matching handled, and corresponding control signal is sent respectively to hold Sub- turn-on control circuit and LED indicating circuit.

Wherein, the terminal turn-on control circuit is identical including three structures and controls the branch of three female terminals respectively Circuit, branch circuit include the first diode, the second diode, first resistor, second resistance and a silicon controlled crystal brake pipe； The female terminal, the first diode, second resistance and silicon controlled crystal brake pipe series connection, one end and the voltage sense of the first resistor A wherein output end for controller in circuit is answered to be connected, the other end of first resistor is connected with the control pole of silicon controlled crystal brake pipe, The T1 ends of silicon controlled crystal brake pipe are connected with one end of second resistance, the negative electrode phase of the other end of second resistance and the first diode Even, the negative electrode of the second diode is connected with the anode and female terminal of the first diode respectively, and the anode of the second diode connects Ground, it is grounded after the T2 ends parallel connection of the silicon controlled crystal brake pipe of three branch circuits；The silicon controlled crystal brake pipe receiving voltage induced electricity The control signal of road transmission simultaneously controls the turn-on and turn-off of live wire and zero terminal.

Wherein, the LED indicating circuit includes three kinds of different colours for being used to characterize three female terminal polarization states LED；The control signal control that the LED is received and controlled device is sent.

Wherein, in addition to a USB output circuits；The USB output circuits include 220V alternating currents to be converted into stabilization The USB change-over circuits of first direct current and the second average anode current, the first dc bus being connected with USB change-over circuit output ends The X that is connected with the second dc bus, with the first dc bus the first direct current outlets, the X being connected with the second dc bus individual the Two direct current outlets and Y USB interface female end；The numerical value of the X and Y meet following relation：X<Y and 2X<Y;Described first is straight Outflow line and the second direct current outlet are fixedly connected with a fixed plate and are uniformly distributed along fixed plate length direction, the fixed plate One end be fixedly installed one and can slide up and down the toggle of adjustment fixing plate position, the first direct current outlet and the second direct current go out Line is with its position of the slip synchronous change of fixed plate；The first direct current outlet and the second direct current line end are respectively arranged with First contact, the USB interface female end are provided with the second contact being engaged with the first contact, and wherein Y the first contacts and Y are individual Mutually touch and the contact conditions of different contacts can be changed by moving up and down for fixed plate in the second contact；The USB change-over circuits End of incoming cables be connected with the live wire and zero terminal of terminal turn-on control circuit；The USB output circuits export 1A and 2A respectively Electric current give the first dc bus and the second dc bus, and Y the first contacts warps by being currently connected with Y the second contacts By sum Y USB interface female end is flowed into for Y several the first direct current outlets and several the second direct current outlets.

Wherein, the minicell is connected with the controller in voltage sense circuit by output end E with minicell.

The utility model has the advantages that：

1st, the utility model socket test circuit can carry out independent live wire detection to any one terminal of socket, it is not necessary to Judgement live wire is carried out using the interaction between terminal, it is possible thereby to detect single live wire, or has connect double fire wire even three The abnormal conditions of live wire.

2nd, the utility model socket test circuit adds the recognizable abnormal species of socket tester, solves current socket The problem of abnormality species that tester can interpolate that is very few.

3rd, the utility model socket test circuit devises more succinct clearly socket instruction state so that product need not Compare state table can and clearly transmit test result to user.

4th, the utility model socket test circuit carries minicell, if three accessed female terminal breaks down, Socket can be powered by minicell to light LED indicating circuit.

5th, the utility model socket test circuit house friend 5 can the USB of manual adjustment control its output current size connect Mouth female end, can be in the 1A electric currents to be charged suitable for mobile phone and suitable for being cut the 2A electric currents of tablet personal computer or other electronic products Change, realize each electronic product corresponding current charging, extend the service life of the battery of electronic product.

6th, the utility model socket test circuit structure is excellent, ingenious in design, practical.

Brief description of the drawings

Fig. 1 is circuit connection schematic diagram of the present utility model；

Fig. 2 is voltage sense circuit schematic diagram of the present utility model；

Fig. 3 is terminal turn-on control circuit schematic diagram of the present utility model；

Fig. 4 is LED indicating circuit schematic diagram of the present utility model；

Fig. 5 is USB output circuits schematic diagram of the present utility model；

Fig. 6 is front appearance schematic diagram of the present utility model；

Fig. 7 is reverse side schematic appearance of the present utility model.

Reference is expressed as in figure：

1- female terminals, 2- voltage sense circuits, 21- sensor wires, 22- signal amplifiers, 23- controllers, 3- terminals Turn-on control circuit, the diodes of 31- first, the diodes of 32- second, 33- first resistors, 34- second resistances, the controllable silicon wafers of 35- Brake tube, 36- power supplys, 4-LED indicating circuits, 41-LED lamps, 5- minicells, 6-USB output circuits, 61-USB conversion electricity Road, the dc bus of 62- first, 621- the first direct current outlets, the dc bus of 63- second, 631- the second direct current outlets, 64-USB connect Mouth female end, 65- fixed plates, 651- toggles, 652- grooves, the contacts of 66- first, the contacts of 67- second.

Embodiment

The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.

Referring to Fig. 1 to Fig. 7, a kind of socket test circuit, including three three female terminals 1, detection polarity of female terminal 1 Voltage sense circuit 2, by the electric signal of voltage sense circuit 2 control change the output state of female terminal 1 terminal turn on control Circuit 3, the LED indicating circuit 4 for characterizing three 1 each states of female terminal and supply working power to voltage sense circuit 2 Minicell 5, female terminal 1 are connected with voltage sense circuit 2 and terminal turn-on control circuit 3 respectively, the voltage induced electricity Road 2 is connected with terminal turn-on control circuit 3, and voltage sense circuit 2 is connected with LED indicating circuit 4 and minicell 5；The electricity Pressure sensor circuit 2 receives induced voltage signal caused by each female terminal 1 and judges whether its polarity is correct, processing detection As a result and control signal is sent to terminal turn-on control circuit 3 and LED indicating circuit 4；The receiving voltage of LED indicating circuit 4 Control signal that sensor circuit 2 is sent and the LED that passes through different colours are lighted and flash state to characterize each socket end The miswiring condition of son 1；The control signal of the receiving voltage sensor circuit 2 of terminal turn-on control circuit 3 transmission is simultaneously cut-off The external output voltage of female terminal 1.

Further, the voltage sense circuit 2 includes three and around three female terminals 1 but is not attached thereto respectively The sensor wire 21, three as voltage induced part electrically connected and in sensor wire 21 with three sensor wires 21 respectively Signal amplifier 22 that caused sensor current signal is amplified and the control being connected with three output ends of signal amplifier 22 Device 23 processed；Three output terminals As, B, C of the controller 23 are connected to terminal turn-on control circuit 3, and the controller 23 also has One output end D is connected to LED indicating circuit 4；The sensor wire 21 receives induced voltage signal caused by each female terminal 1 And it is sent to signal amplifier 22；The signal amplifier 22 receives the induced voltage signal that sensor wire 21 is sent and it is entered Row amplification, is then sent to controller 23 by the induced voltage signal after amplification；The receiving signal amplifier 22 of controller 23 Induced voltage signal after the amplification of transmission is simultaneously handled signal, then according to corresponding to the testing result matching handled Control signal, and corresponding control signal is sent respectively to terminal turn-on control circuit 3 and LED indicating circuit 4.

Further, the terminal turn-on control circuit 3 is identical including three structures and controls three female terminals 1 respectively Branch circuit, branch circuit includes the first diode 31, the second diode 32, first resistor 33, second resistance 34 and one Individual silicon controlled crystal brake pipe 35；The female terminal 1, the first diode 31, second resistance 34 and silicon controlled crystal brake pipe 35 are connected, institute The one end for stating first resistor 33 is connected with a wherein output end for controller 23 in voltage sense circuit 2, first resistor 33 it is another One end is connected with the control pole of silicon controlled crystal brake pipe 35, and the T1 ends of silicon controlled crystal brake pipe 35 are connected with one end of second resistance 34, The other end of second resistance 34 is connected with the negative electrode of the first diode 31, the negative electrode of the second diode 32 respectively with the first diode 31 anode and female terminal 1 is connected, the plus earth of the second diode 32, the silicon controlled crystal brake pipe 35 of three branch circuits The parallel connection of T2 ends after be grounded；The control signal of the receiving voltage sensor circuit 2 of silicon controlled crystal brake pipe 35 transmission simultaneously controls live wire With the turn-on and turn-off of zero terminal.

Further, the LED indicating circuit 4 includes three kinds of differences for being used to characterize three polarization states of female terminal 1 The LED 41 of color；The control signal control that the LED 41 is received and controlled device 23 is sent；LED 41 include red light, Blue lamp and green light, if there are live wire open circuit or multichannel wiring faults, controller 23 controls blinking red lamp；If there is zero line break Failure, the then control of controller 23 blue lamp flicker；If there is ground wire open circuit fault, controller 23 controls green light flicker.

Further, in addition to a USB output circuits 6；The USB output circuits 6 include 220V alternating currents to be converted into The first stable direct current and the USB change-over circuits 61 of the second average anode current, the to be connected with the output end of USB change-over circuits 61 One dc bus 62 and the second dc bus 63, the X being connected with the first dc bus 62 the first direct current outlets 621, with second X the second direct current outlets 631 and Y USB interface female end 64 that dc bus 63 connects；The numerical value of the X and Y meet as follows Relation：X<Y and 2X<Y;In the present embodiment in case of USB interface female end expands to five；Four first direct currents go out Line 621 and four the second direct current outlets 631 are fixedly connected with a fixed plate 65 and are uniformly distributed along the length direction of fixed plate 65, One end of the fixed plate 65, which is provided with one, can slide up and down the toggle 651 of the position of adjustment fixing plate 65, and the toggle 651 passes through A groove 652 that socket side is vertically arranged is stretched out outside Socket casing, and four first direct current outlets 621 and four the Two direct current outlets 631 are with its position of the slip synchronous change of fixed plate 65；The first direct current outlet 621 and the second direct current go out The end of line 631 is respectively arranged with the first contact 66, and the USB interface female end 64 is provided with second be engaged with the first contact 66 Contact 67, wherein five the first contacts 66 are mutually touched with five the second contacts 67 and can move up and down change by fixed plate 65 The contact condition of different contacts；Can be slotting to adjust for the specified charging current of mobile phone or other electronic equipments according to actual use The electric current output of the upper five USB interface female ends 64 of seat；In fixed plate 65 with the first direct current outlet 621 and the second direct current outlet 631 The position that is in contact is provided with two different colors of small color lump, wherein the position that is in contact with the first direct current outlet 621 is arranged to shallow Color color lump, the position that is in contact with the second direct current outlet 631 are arranged to dark color lump, wherein be in contact with five the second contacts 67 The color lump that five the first contacts 66 are in contact is shown through the hole being equipped with jack housing；The USB conversions electricity The end of incoming cables on road 61 is connected with the live wire and zero terminal of terminal turn-on control circuit 3；The USB output circuits 6 export respectively 1A and 2A electric current gives the first dc bus 62 and the second dc bus 63, and by being currently connected with five the second contacts 67 Five the first contacts 66 flow into via sum for five several the first direct current outlets 621 and several the second direct current outlets 631 Five USB interface female ends 64.

Further, the minicell 5 passes through output end E and micro electric with the controller 23 in voltage sense circuit 2 Pond 5 is connected, if three female terminals accessed break down, socket can be powered by minicell to light LED indicating circuit.

Workflow of the present utility model is as follows：

The control pole that controller 23 first passes through three silicon controlled crystal brake pipes 35 controls its shut-off, between three female terminals 1 Loop can not be formed, three female terminals 1 are in vacant state, and induced voltage is now only able to detect that on fire line terminal； Sensor wire 21 in voltage sense circuit 2 is conveyed to after detecting live wire induced voltage and amplification by signal amplifier 22 In controller 23, now controller 23 judges that this female terminal 1 is fire line terminal, and remaining several female terminal 1 is zero line Terminal and ground wire terminal；Now whether there can be the failure for being connected to more live wires to judge the wiring of female terminal 1.

After having judged fire line terminal position, controller 23 controls three silicon controlled crystal brake pipes 35 to open, and makes three sockets Current loop is formed between terminal 1, in the positive half period of alternating current, electric current flows into terminal turn-on control circuit 3 simultaneously from fire line terminal Power network is flowed back to from zero terminal, now the current loop in terminal turn-on control circuit 3 is the diode of fire line terminal-the first 31- Second resistance 34- silicon controlled crystal brake pipe 35- power supplys ground 36- the second diode 32- zero terminals, fire line terminal with power supply 36 it Between voltage be positive 220V alternating currents；In the negative half-cycle of alternating current, electric current flows into terminal turn-on control circuit 3 from zero terminal And power network is flowed back to from fire line terminal, now the current loop in terminal turn-on control circuit 3 is the diode of zero terminal-the first 31- second resistance 34- silicon controlled crystal brake pipe 35- power supplys ground 36- the second diode 32- fire line terminals, zero terminal is with power supply Voltage between 36 is positive 220V alternating currents；Due to having measured the position of fire line terminal before, controller 23 detect with The opposite one end of electric current is flowed through in fire line terminal can be determined as zero terminal；If the zero line break of socket, live wire and zero line Between can not form current loop, induced voltage still can not be now detected on zero terminal, now controller 23 judges Failure is zero line break.

A remaining circuit is that controller 23 is determined as ground wire.

If there are any one open circuit of phase female terminal 1 or wiring faults, controller 23 is closed silicon controlled crystal brake pipe 35 and controlled The LED 41 of corresponding color flashes in LED indicating circuit 4 processed.

If three 1 equal wiring of female terminal are normal, controller 23 opens silicon controlled crystal brake pipe 35, and each terminal of socket is just , now can be by controlling the toggle 651 of socket side to adjust the output voltage of each USB interface female end 64 often to electricity.

Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in Other related technical areas, similarly it is included in scope of patent protection of the present utility model.

Claims

A kind of 1. socket test circuit, it is characterised in that：Including three female terminals（1）, detection three female terminals（1）Polarity Voltage sense circuit（2）, by voltage sense circuit（2）Electric signal control changes female terminal（1）The terminal of output state is led Logical control circuit（3）, characterize three female terminals（1）The LED indicating circuit of each state（4）And to voltage sense circuit（2） Supply the minicell of working power（5）, female terminal（1）Respectively with voltage sense circuit（2）With terminal turn-on control circuit （3）It is connected, the voltage sense circuit（2）With terminal turn-on control circuit（3）It is connected, voltage sense circuit（2）Indicated with LED Circuit（4）And minicell（5）It is connected；The voltage sense circuit（2）Receive each female terminal（1）Caused induced electricity Pressure signal simultaneously judges whether its polarity is correct, and processing detection result simultaneously sends control signal and gives terminal turn-on control circuit（3） And LED indicating circuit（4）；The LED indicating circuit（4）Receiving voltage sensor circuit（2）The control signal of transmission and by not LED with color is lighted and flashes state to characterize each female terminal（1）Miswiring condition；The terminal conducting Control circuit（3）Receiving voltage sensor circuit（2）The control signal of transmission simultaneously cut-offs female terminal（1）External output voltage.
A kind of 2. socket test circuit according to claim 1, it is characterised in that：The voltage sense circuit（2）Including Three respectively around three female terminals（1）But the sensor wire as voltage induced part not being attached thereto（21）, three It is individual respectively with three sensor wires（21）Electrically connect and to sensor wire（21）In caused sensor current signal be amplified Signal amplifier（22）And with three signal amplifiers（22）The connected controller of output end（23）；The controller（23）'s Three output terminals As, B, C are connected to terminal turn-on control circuit（3）, the controller（23）Also an output end D is connected to LED Indicating circuit（4）；The sensor wire（21）Receive each female terminal（1）Caused induced voltage signal is simultaneously sent to signal Amplifier（22）；The signal amplifier（22）Receive sensor wire（21）The induced voltage signal of transmission is simultaneously put to it Greatly, the induced voltage signal after amplification is then sent to controller（23）；The controller（23）Receiving signal amplifier （22）Induced voltage signal after the amplification of transmission is simultaneously handled signal, then according to the testing result matching pair handled The control signal answered, and corresponding control signal is sent respectively to terminal turn-on control circuit（3）And LED indicating circuit（4）.
A kind of 3. socket test circuit according to claim 2, it is characterised in that：The terminal turn-on control circuit（3） It is identical including three structures and respectively control three female terminals（1）Branch circuit, branch circuit includes the first diode （31）, the second diode（32）, first resistor（33）, second resistance（34）With a silicon controlled crystal brake pipe（35）；The socket Terminal（1）, the first diode（31）, second resistance（34）And silicon controlled crystal brake pipe（35）Series connection, the first resistor（33）'s One end and voltage sense circuit（2）Middle controller（23）A wherein output end be connected, first resistor（33）The other end and can Control silicon wafer brake tube（35）Control pole be connected, silicon controlled crystal brake pipe（35）T1 ends and second resistance（34）One end be connected, Two resistance（34）The other end and the first diode（31）Negative electrode be connected, the second diode（32）Negative electrode respectively with the one or two Pole pipe（31）Anode and female terminal（1）It is connected, the second diode（32）Plus earth, three branch circuits it is controllable Silicon wafer brake tube（35）The parallel connection of T2 ends after be grounded；The silicon controlled crystal brake pipe（35）Receiving voltage sensor circuit（2）The control of transmission Signal processed and the turn-on and turn-off for controlling live wire and zero terminal.
A kind of 4. socket test circuit according to claim 1, it is characterised in that：The LED indicating circuit（4）Including three Kind is used to characterize three female terminals（1）The LED of the different colours of polarization state（41）；The LED（41）Receive and by Controller（23）The control signal control of transmission.
A kind of 5. socket test circuit according to claim 1, it is characterised in that：Also include a USB output circuits（6）； The USB output circuits（6）USB including 220V alternating currents being converted into the first stable direct current and the second average anode current Change-over circuit（61）And USB change-over circuits（61）The first connected dc bus of output end（62）With the second dc bus（63）、 With the first dc bus（62）X the first direct current outlets of connection（621）And the second dc bus（63）X second of connection Direct current outlet（631）And Y USB interface female end（64）；The numerical value of the X and Y meet following relation：X<Y and 2X<Y;It is described First direct current outlet（621）With the second direct current outlet（631）With a fixed plate（65）It is fixedly connected and along fixed plate（65）It is long Degree direction is uniformly distributed, the fixed plate（65）One end be fixedly installed one and can slide up and down adjustment fixing plate（65）Position Toggle（651）, the first direct current outlet（621）With the second direct current outlet（631）With fixed plate（65）Slip synchronously change Become its position；The first direct current outlet（621）With the second direct current outlet（631）End is respectively arranged with the first contact（66）, The USB interface female end（64）It is provided with and the first contact（66）The second contact being engaged（67）, wherein Y the first contacts （66）With Y the second contacts（67）Mutually touch and fixed plate can be passed through（65）Move up and down the contact shape for changing different contacts State；The USB change-over circuits（61）End of incoming cables and terminal turn-on control circuit（3）Live wire be connected with zero terminal；It is described USB output circuits（6）1A and 2A electric current is exported respectively to the first dc bus（62）With the second dc bus（63）, and pass through Currently with Y the second contacts（67）Y connected the first contacts（66）Via several the first direct current outlets that sum is Y （621）With several the second direct current outlets（631）Flow into Y USB interface female end（64）.
A kind of 6. socket test circuit according to claim 1, it is characterised in that：The voltage sense circuit（2）In Controller（23）Pass through output end E and minicell（5）It is connected.