CN105633739A - Child-safety wall power socket - Google Patents
Child-safety wall power socket Download PDFInfo
- Publication number
- CN105633739A CN105633739A CN201610139940.8A CN201610139940A CN105633739A CN 105633739 A CN105633739 A CN 105633739A CN 201610139940 A CN201610139940 A CN 201610139940A CN 105633739 A CN105633739 A CN 105633739A
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- circuit
- power
- pole
- human body
- safety
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/717—Structural association with built-in electrical component with built-in light source
- H01R13/7175—Light emitting diodes (LEDs)
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a child-safety wall power socket, which comprises a shell and a control panel, wherein the shell is divided into a front panel and a rear housing, wherein the front panel is provided with a power output jack, a pyroelectric infrared sensor and a power indicator light; the rear housing is provided with a power input terminal; the control panel is arranged in the shell and is provided with a power conversion module, a load access judgment circuit, a load current judgment circuit, a human body approach judgment circuit and a logic control drive circuit; the human body approach judgment circuit can sense that a human body approaches to the socket; and the load access judgment circuit solves the contradiction problem that a load current can be detected only in presence of power output, and a power supply can be output only when judging the load access. The child-safety wall power socket provided by the invention can start the power output only when nobody approaches and the load is accessed through logic judgment on human body approach, load access and energized output; and the risk that a human body, especially a child accidentally touches the power socket is effectively prevented.
Description
Technical field
The present invention relates to household safe electrical domain, particularly relate to a kind of children's safety metope supply socket.
Background technology
Household electricity be unable to do without supply socket, the metope in house, room is generally all equipped with multiple supply socket, can patch for household electrical appliance. But, if family has not too sensible, compare active child, it is possible to can go to touch power supply jack with hand, or can insert in power hole with metal filament, so just have the danger of electric shock. For avoiding the generation of fatal accident, on market or in publicity, various multi-form child-resistant electric shock socket occurs. What have have employed the touching socket that relief door, safety screen, protective cover, safety lock etc. prevent children; the superabsorbent fibrous material cover that then have employed having prevents moist finger contact socket, and what also have claims that adopting induction to touch sheet can could trigger power supply connection etc. with induction switch when external plug is inserted.
For employing this class device such as relief door, shield cap, child still can not be avoided to touch socket when loosening, come off or open; For that adopt water-absorbing material etc. it is contemplated that can not explain principle knowing is how to prevent human electric shock; And sheet, induction switch etc. are touched for employing induction, can trigger power supply equally exports when other metallic substance gos deep in power supply jack, therefore, these anti-electric shock sockets can't completely, reliably prevent human body particularly children accidentally touch the danger of supply socket.
Summary of the invention
For solving the problems of the technologies described above, a kind of children's safety metope supply socket provided by the invention, its objective is to be reached metope supply socket can according to the logic arranged to differentiate output, to be realized exactly: with electrical load access and do not have human body near time do not have power supply to export, power supply is not still had to export when there being human body near also access electrical load, useful electrical load access and human body just has power supply to export after leaving, have again after connection electrical load human body near time still keep power supply to export, after disconnecting, no longer include power supply by electrical load export, until connect load human body recover power supply again and export effect after leaving next time, so just can very effectively prevent human body from accidentally touching supply socket, particularly prevent children from the danger of electric shock accident occurring.
The present invention solves the problems of the technologies described above the technical scheme adopted:
A kind of children's safety metope supply socket, it comprises housing and switchboard, described housing be divided into front panel and and rear casing, described front panel is provided with power supply output jack, pyroelectric infrared transducer and power light, and described rear casing is provided with power input terminal; Described enclosure interior is provided with switchboard and power transfer module, load access differentiation circuit, load current differentiation circuit, human body proximity differentiation circuit and logic control driving circuit is housed.
Described front panel both sides are provided with open holes, and with covering the frame cover of open holes; After described front panel, side is fixed with switchboard, and described rear casing is buckled into one with front panel after covering switchboard.
Power input terminal on described rear casing is divided into L, N and E pole, wherein L, N pole is connected with exchange input L, N end of internal control on board supply conversion module respectively, and on described rear casing, the E pole in power input terminal is extremely directly connected with the E of power supply output jack.
Described power transfer module converts circuit by AC-DC and forms, and its DC output end connects load access respectively and differentiates that the low-tension side of circuit, load current differentiate that circuit, human body proximity differentiate the power supply end of circuit and logic control driving circuit.
Described load access differentiates that circuit is made up of high-tension side sampling element and low-tension side coupling element, its on high-tension side L, N end is also connected with L, N pole of power input terminal, described high-tension side is made up of D1, R3, W1, B1, V2 element, and provides sampled signal through R5 to V2 by R4, RF, K point; Coupled output signal F1 is connected to first input terminus of logic control driving circuit by its low-tension side by B1 and R2 element.
Described load current differentiates that input terminus H1 and H2 of circuit connects the output terminal of current transformer, the L line that in the input hole of described current transformer, cross-under power supply exports, described load current differentiates that the output terminal F2 of circuit is connected to the 2nd input terminus of logic control driving circuit.
Described human body proximity differentiates that input terminus T1 and T2 of circuit connects pyroelectric infrared transducer, and described human body proximity differentiates that the output terminal F3 of circuit is connected to the 3rd input terminus of logic control driving circuit.
Output terminal contact resistance R1, the triode V1 of described logic control driving circuit also drive the coil of two-way relay J 1, and the side of the J1-1 contact of described two-way rly. connects the L pole of power input, and another side connects the L pole of on board supply output jack above; The side of the J1-2 contact of described two-way rly. connects the N pole of power input, and another side connects the N pole of on board supply output jack above.
It is attempted by between the L pole of on board supply output jack above and N pole after described power light serial connection D2 diode and R6 resistance.
The invention has the beneficial effects as follows: a kind of children's safety metope supply socket of the present invention, have employed rpyroelectric infrared detecting element, it is possible to perception human body is near supply socket; Have employed micro-electric current coupling element, solving does not switch on power cannot measure load current when exporting, sentencing just can not the contradiction of out-put supply less than load access; The logic distinguishing circuit adopted can export by the security factor control power supply of setting, this assures metope supply socket when exposing and have human body to touch, do not have power supply to export, therefore need not worry to occur the danger of children from getting electric shock, thus ensure that the safety of household electricity.
Accompanying drawing explanation
Fig. 1 is the contour structures schematic diagram of a kind of children's safety metope supply socket of embodiment;
Fig. 2 is the rear structure schematic diagram of a kind of children's safety metope supply socket of embodiment;
Fig. 3 is the overall pilot circuit figure of a kind of children's safety metope supply socket of embodiment;
Fig. 4 is the logic discrimination schematic diagram of a kind of children's safety metope supply socket of embodiment;
Wherein, 1-front panel, 1a-L pole output jack, 1b-N pole output jack, 1c-E pole output jack, 1d-open holes, 2-rear casing, 2a-L pole input terminal, 2b-N pole input terminal, 2c-E pole input terminal, 2d-groove, 3-frame cover, 4-pyroelectric infrared transducer, 5-power light, 6-switchboard, 6a-power transfer module, 6b-load access differentiates circuit, and 6c-load current differentiates circuit, 6d-human body proximity differentiates circuit, 6e-logic control driving circuit, 7-current transformer.
Embodiment
In order to deepen the understanding of the present invention, the present invention being described in further detail below in conjunction with drawings and Examples, protection scope of the present invention, only for explaining the present invention, is not formed and limits by this embodiment.
Embodiment
As shown in Figure 1 and Figure 2, being a kind of children's safety metope supply socket profile and rear structure figure, it comprises housing and switchboard 6, and described housing is divided into front panel 1 and rear casing 2, it is inner that described switchboard 6 is fixed on front panel 1, after rear casing 2 covers switchboard 6 and front panel snap together. Described front panel 1 is provided with three core power supply output jacks, wherein comprises L pole output jack 1a, N pole output jack 1b and E pole output jack 1c, can patch for household appliances equipment. Also being provided with pyroelectric infrared transducer 4 and power light 5 on described front panel 1, described pyroelectric infrared transducer 4 is a kind of special infrared sensor being used as detection human body radiation; Described power light 5 adopts LED diode, sends ruddiness when supply socket has electricity to export; Respectively it is provided with an open holes 1d in the both sides of described front panel 1, wears during for installing into screw, the box of the general end that wall jack and metope are buried in advance can be fixed; Frame also to be overlapped after installing wall jack 3 to be buckled on described front panel 1, in order to cover installation screw so that the socket surface exposed is more attractive in appearance. Described rear casing 2 is provided with three power input terminals, described power input terminal comprises L pole input terminal 2a, and N pole input terminal 2b and E pole input terminal 2c, for the wiring of external input power, the both sides of described rear casing 2 are also designed to groove, it is possible to avoid install time wear into screw rod.
As shown in Figure 3, it is the overall pilot circuit figure of a kind of children's safety metope supply socket, in figure, the pilot circuit on switchboard 6 is mainly divided into power transfer module 6a, load access to differentiate that circuit 6b, load current differentiate that circuit 6c, human body proximity differentiate circuit 6d and logic control driving circuit 6e, the inside of described power transfer module 6a is an AC-DC transfer lever power supply, its input terminus is directly connected with L, N line of external ac power source, output terminal is direct current+5V voltage, provides low dc voltage working power to each control circuit judge.
Described load access at Fig. 3 differentiates in circuit 6b, is a kind of can judge, when not switching on power and export, the special circuit that load accesses; Because considering from security standpoint, when the jack of wall jack does not access load plug and expose, jack should not switch on power, but disconnect when power supply exports and do not detect again load current; For solving this contradiction, this circuit have employed the principle of similar test pencil: when our hand-held test pencil and contact the metal part of rear end, and when electroprobe head is touched the live wire L pole of AC power, human body can't get an electric shock, because the inside of electroprobe has sealed in the resistance of high value, only several faint safety current is through human body and the earth, so that it may with the luminous neon bubble lighted in electroprobe; With reason, differentiate that the resistance R4 that have employed a megohm level in circuit 6b is connected between input power L line and L pole output jack 1a in described load access, and the resistance R5 adopting another megohm level is connected between the base stage of output jack 1b and the triode V2 in N pole; Like this, when socket not having power supply export, namely use hand to touch power supply jack, also can guarantee the safety of human body; When having external load plug insertion wall jack and open Household appliance switch, just access pull-up resistor RF, the live wire L of AC power just creates a micro voltage signal through series resistance R4, R5 and RF, this signal just can drive triode V2 conducting, make D1, R3, W1, V2 of being attempted by AC power two ends and the loop conducting of optocoupler B1 input side, thus cause the outgoing side also conducting of photoelectric coupled circuit B1, F1 point just transfers high level to from lower level, and this signal is exactly the load access signal that can obtain when not having socket power supply to export.
Described load current at Fig. 3 differentiates in circuit 6c, the working current of external load need to be detected by current transformer 7, the input hole of described current transformer 7 is worn the L line into power supply circuit, it exports load current described in termination and differentiates H1 and the H2 end of circuit 6c, when wall jack has accessed load, and load open after when making socket have an out-put supply, the input side opening of described current transformer 7 cause outgoing side produce induced current small-signal because of there being electric current to flow through, this signal makes described load current differentiate that the output terminal F2 of circuit 6c presents high level after amplifying, when electrical equipment load turns off, the input of described current transformer 7 does not have electric current, exporting and also do not have induced current, thus described load current differentiates that the output terminal F2 of circuit 6c changes into lower level, and the level variable signal of this F2 end is exactly the judgment signal of load current.
Described human body proximity at Fig. 3 differentiates in circuit 6d, have employed an external pyroelectric infrared transducer 4, the top on front panel 1 surface it is exposed at outside described pyroelectric infrared transducer 4, this is the detecting element of a kind of high Seebeck coefficient material, the wavelength region of its detection and the heat wave appearance of human body are same, add with on coordinate with optical lens, can be adjusted to the activity detecting human body within the scope of wall jack one to two meter; Like this, when there being the front panel 1 of close wall jack, the ir radiation received just is transformed into faint voltage signal by described pyroelectric infrared transducer 4, then the amplification through oversampling circuit midfield effect pipe, so that it may described human body proximity is differentiated, and the output terminal F3 of circuit 6d presents high level; When human body leaves the front panel 1 of wall jack, its output terminal F3 just changes into lower level.
In the described logic control driving circuit 6e of Fig. 3, its input terminus summarizes F1, F2 and F3 signal, its inner differentiation circuit adopting multiple COMS Digital Logical Circuits chip composition, by the electric shock-prevention safety key element of setting, input signal can be differentiated, its output terminal KZ is through the base stage of current limliting resistance R1 rear drive triode V1, the grounded emitter of triode V1, connects+5V working power after the coil of the collector series connection two-way relay J 1 of V1; When the output terminal KZ of described logic control driving circuit 6e is high level, the coil of triode V1 conducting, two-way relay J 1 obtain electric after make J1-1 and the J1-2 closing of contact, the jack on described front panel 1 has power supply to export; When KZ end is lower level, after the coil losing electricity of two-way relay J 1, make J1-1 and J1-2 contact disconnect, the jack on described front panel 1 does not just have power supply to export.
As shown in Figure 4, it is the logic discrimination schematic diagram of a kind of children's safety metope supply socket; This logic distinguishing circuit is integrated in the inside of described logic control driving circuit 6e, wherein mainly have employed 2 phase inverters and 3 Sheffer stroke gate circuit, this circuit unit adopts+5V Power supply, and its function differentiated can do following analysis according to the logic discrimination truth table of table 1:
Table 1 logic discrimination truth table
A) socket do not access load F1=0, non-loaded electric current F2=0, unmanned close to socket F3=0 time, be not energized without driver output KZ=0, socket electrode.
B) non-loaded access socket F1=0, non-loaded electric current F2=0, have people close to socket F3=1 time, be not still still energized without driver output KZ=0, socket electrode.
C) connect with electrical load F1=1, non-loaded electric current F2=0, have people close to socket F3=1 time, be not still also energized without driver output KZ=0, socket electrode.
D) then above-mentioned state, when human body has left socket F3=0, driver output KZ=1, socket electrode is had to be energized, there is load current F2=1, now due to J1-2 contact closed of two-way rly. so that between the base stage of V2 triode and emtting electrode, voltage is zero, therefore, described load access differentiates that the output F1=0 of circuit is lower level, so sentencing the access less than load, but this does not affect the state of socket out-put supply.
E) then above-mentioned state, if human body is again close to socket F3=1, still keeps driver output KZ=1, socket electrode to be still energized, and still sentences and accesses F1=0 less than load, has load current F2=1, continues energising by electrical load.
F) then above-mentioned state, if human body is again close to socket F3=1, and turns off with electrical load, non-loaded electric current F2=0, without driver output KZ=0, socket electrode with regard to power-off.
G) still then above-mentioned state, if human body leaves socket again, the output of socket just returns to initial state, if again to be opened by electrical load and make wall jack out-put supply, human body proximity will be repeated, connect plug, and connect load, human body and leave, just have the process that power supply exports.
Pass through technique scheme, a kind of children's safety metope supply socket of the present invention, human body proximity is judged, with the access of electrical load with the electrical condition of electrical load by the circuit adopting electronic component to form, particularly have employed pyroelectric infrared transducer and micro-electric current matching circuit, can very sensitively human body near supply socket, it is possible to solving does not switch on power cannot detect load current when exporting, sentencing just can not the contradiction of out-put supply less than load access; Make the jack of metope supply socket when not accessing electrical equipment and expose, do not have power supply and export; Human body near wall jack and do not open use electrical load time, do not have power supply to export yet; Only connect by electrical load in wall jack, and load power source switch is connected, then after waiting that human body leaves, wall jack just has power supply to export. Like this, whether human body touches the jack of power supply accidentally, or naughty child plays with power supply jack, the danger got an electric shock all can not occur, make a kind of children's safety metope supply socket of the present invention become the ideal chose of household safe electricity consumption accessory.
The foregoing is only embodiments of the invention; not thereby the patent scope of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all it is included in the scope of patent protection of the present invention with reason.
Claims (9)
1. a children's safety metope supply socket, it is characterized in that: it comprises housing and switchboard, described housing be divided into front panel and and rear casing, described front panel is provided with power supply output jack, pyroelectric infrared transducer and power light, and described rear casing is provided with power input terminal; Described enclosure interior is provided with switchboard and power transfer module and load access differentiation circuit, load current differentiation circuit, human body proximity differentiation circuit and logic control driving circuit is housed.
2. a kind of children's safety metope supply socket according to claim 1, it is characterised in that: described front panel both sides are provided with open holes, and with covering the frame cover of open holes; After described front panel, side is fixed with switchboard, and described rear casing is buckled into one with front panel after covering switchboard.
3. a kind of children's safety metope supply socket according to claim 1, it is characterized in that: the power input terminal on described rear casing is divided into L, N and E pole, wherein L, N pole is connected with exchange input L, N end of internal control on board supply conversion module respectively, and on described rear casing, the E pole in power input terminal is extremely directly connected with the E of power supply output jack.
4. a kind of children's safety metope supply socket according to claim 1, it is characterized in that: described power transfer module converts circuit by AC-DC and forms, its DC output end connects load access respectively and differentiates that the low-tension side of circuit, load current differentiate that circuit, human body proximity differentiate the power supply end of circuit and logic control driving circuit.
5. a kind of children's safety metope supply socket according to claim 1, it is characterized in that: described load access differentiates that circuit is made up of high-tension side sampling element and low-tension side coupling element, its on high-tension side L, N end is also connected with L, N pole of power input terminal, inside, high-tension side is made up of D1, R3, W1, B1, V2 element, and provides sampled signal through R5 to V2 by R4, RF, K point; Coupled output signal F1 is connected to first input terminus of logic control driving circuit by its low-tension side by B1 and R2 element.
6. a kind of children's safety metope supply socket according to claim 1, it is characterized in that: described load current differentiates that input terminus H1 and H2 of circuit connects the output terminal of current transformer, wearing the L line into power supply output line road in the input hole of described current transformer, described load current differentiates that the output terminal F2 of circuit is connected to the 2nd input terminus of logic control driving circuit.
7. a kind of children's safety metope supply socket according to claim 1, it is characterized in that: described human body proximity differentiates that input terminus T1 and T2 of circuit connects pyroelectric infrared transducer, described human body proximity differentiates that the output terminal F3 of circuit is connected to the 3rd input terminus of logic control driving circuit.
8. a kind of children's safety metope supply socket according to claim 1, it is characterized in that: output terminal KZ contact resistance R1, the triode V1 of described logic control driving circuit also drive the coil of two-way relay J 1, the side of the J1-1 contact of described two-way rly. connects the L pole of power input, and another side connects the L pole of on board supply output jack above; The side of the J1-2 contact of described two-way rly. connects the N pole of power input, and another side connects the N pole of on board supply output jack above.
9. a kind of children's safety metope supply socket according to claim 1, it is characterised in that: between the L pole being attempted by front panel power supply output jack after described power light serial connection diode D2 and resistance R6 and N pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139940.8A CN105633739B (en) | 2016-03-11 | 2016-03-11 | A kind of children's safety metope power outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139940.8A CN105633739B (en) | 2016-03-11 | 2016-03-11 | A kind of children's safety metope power outlet |
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| Publication Number | Publication Date |
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| CN105633739A true CN105633739A (en) | 2016-06-01 |
| CN105633739B CN105633739B (en) | 2017-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610139940.8A Active CN105633739B (en) | 2016-03-11 | 2016-03-11 | A kind of children's safety metope power outlet |
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| CN (1) | CN105633739B (en) |
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| CN202423741U (en) * | 2011-11-28 | 2012-09-05 | 湖南奥盟电器有限公司 | Human body induction anti-electric shock socket |
| CN102780133A (en) * | 2012-07-20 | 2012-11-14 | 天津市亚鼎科技有限公司 | Intelligent and multifunctional safety socket |
| CN103178411A (en) * | 2012-07-05 | 2013-06-26 | 中沛（香港）有限公司 | Energy-saving socket |
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| CN204012011U (en) * | 2014-09-04 | 2014-12-10 | 葛荣超 | The embedded electric appliance standby automatic power-off socket of a kind of body of wall |
| CN204190091U (en) * | 2014-09-02 | 2015-03-04 | 深圳市新和创智能科技有限公司 | Safety socket |
| CN205069995U (en) * | 2015-11-16 | 2016-03-02 | 西安外事学院 | Intelligent domestic wall body socket of protection against electric shock thing networking with infrared induction |
| CN205609881U (en) * | 2016-03-11 | 2016-09-28 | 苏州工业园区科佳自动化有限公司 | Children's safety wall supply socket |
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2016
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202423741U (en) * | 2011-11-28 | 2012-09-05 | 湖南奥盟电器有限公司 | Human body induction anti-electric shock socket |
| CN103178411A (en) * | 2012-07-05 | 2013-06-26 | 中沛（香港）有限公司 | Energy-saving socket |
| CN102780133A (en) * | 2012-07-20 | 2012-11-14 | 天津市亚鼎科技有限公司 | Intelligent and multifunctional safety socket |
| CN203351885U (en) * | 2013-07-13 | 2013-12-18 | 怀化学院 | Wireless intelligent socket controller |
| CN203707489U (en) * | 2014-02-24 | 2014-07-09 | 赵一泽 | Intelligent energy-saving socket |
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| CN205069995U (en) * | 2015-11-16 | 2016-03-02 | 西安外事学院 | Intelligent domestic wall body socket of protection against electric shock thing networking with infrared induction |
| CN205609881U (en) * | 2016-03-11 | 2016-09-28 | 苏州工业园区科佳自动化有限公司 | Children's safety wall supply socket |
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| Publication number | Publication date |
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| CN105633739B (en) | 2017-12-05 |
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