CN203300902U - Safe socket - Google Patents
Safe socket Download PDFInfo
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- CN203300902U CN203300902U CN2013203128493U CN201320312849U CN203300902U CN 203300902 U CN203300902 U CN 203300902U CN 2013203128493 U CN2013203128493 U CN 2013203128493U CN 201320312849 U CN201320312849 U CN 201320312849U CN 203300902 U CN203300902 U CN 203300902U
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- contact
- circuit
- full
- switch
- making
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Abstract
The utility model relates to a safe socket. The socket comprises a housing with an upper cover and an electrode module that is disposed inside the housing, made of metal materials and cooperates with plug pole pieces. The housing is further provided with a wire inlet end that is used for connecting an external power supply. Socket holes are disposed at a position, which is corresponding to the electrode module, of the upper cover. The safe socket is further provided with a safe protection circuit unit. The safe protection circuit unit comprises touch switches, a control circuit and a main contact. The main contact is a normally-open contact. The safe socket is connected with the electrode module and the main contact of the wire inlet end, and is controlled by all the touch switches at the same time. Only when all the touch switches are pressed, the electrode module is electrified; when several touch switches are pressed, the electrode module is not electrified. Thus, if one person touches the socket by using a conductor, he or she will not get an electric shock with higher safety.
Description
Technical field
The utility model relates to a kind of supply socket, and particularly a kind of have a safety socket that can prevent from touching charged position in socket and cause electric shock accidents.
Background technology
The structure of common socket generally comprises the housing that is provided with upper cover and is arranged on the electrode assemblie of being made by metal material in housing, match with the plug pole piece, electrode assemblie generally includes two elastic clips of being made by copper material that are oppositely arranged, upper end becomes horn-like opening with the convenient plug pole piece to insert, on cover the position corresponding with electrode assemblie and be provided with socket aperture.Because the socket aperture that has socket now all opens wide, safety cover plate is not set,, if the thing of taking electric conducting material to make because of carelessness is inserted into socket aperture, just probably can go out casualty accident, therefore there is larger potential safety hazard.
Summary of the invention
Even the purpose of this utility model is to provide a kind of safety socket of electric shock accidents that also can not cause while touching because of carelessness in socket charged position for overcoming the deficiencies in the prior art.
the utility model is that the achieve the above object technical solution that adopts is as follows: a kind of safety socket, comprise the housing that is provided with upper cover and be arranged on and made by metal material in housing, the electrode assemblie that matches with the plug pole piece, also being provided with the lambda line termination on housing is used for being connected with external power source, on cover the position corresponding with electrode assemblie and be provided with socket aperture, it is characterized in that: described safety socket also is provided with the safety protective circuit unit, described safety protective circuit unit comprises contact-making switch, control circuit and main contact, described main contact is normally open contact, the number of described contact-making switch is identical with the socket hole count, described main contact is serially connected between electrode assemblie and lambda line termination, described contact-making switch is arranged in electrode assemblie and is relative with socket aperture, described control circuit is connected with described contact-making switch, all contact-making switches at the same plug of correspondence are subjected under plug pole piece pressed state simultaneously, described control circuit is controlled the main contact closure and is made between electrode assemblie and lambda line termination and be electrically connected to.
Compared with prior art, because the main contact of safety socket connecting electrode assembly and lambda line termination is controlled by all contact-making switches simultaneously, therefore only have simultaneously all contact-making switches are depressed, electrode assemblie just has electricity, only contact-making switch is partly depressed, electrode assemblie is not have electricity, so namely use a conductor to go to disclose also, can not get an electric shock, and fail safe is higher.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment stereoscopic schematic diagram;
Accompanying drawing 2 is the utility model specific embodiment decomposition texture schematic diagram;
Accompanying drawing 3 is the utility model contact-making switch specific embodiment stereoscopic schematic diagram;
Accompanying drawing 4 is the utility model contact-making switch specific embodiment vertical view;
Accompanying drawing 5 is accompanying drawing 4 A-A structure cutaway views;
Accompanying drawing 6 is another specific embodiment stereoscopic schematic diagram of the utility model contact-making switch;
Accompanying drawing 7 is another specific embodiment left view of the utility model contact-making switch;
Accompanying drawing 8 is accompanying drawing 7 B-B structure cutaway views;
Accompanying drawing 9 is the utility model electrode assemblie specific embodiment structural upright schematic diagram;
Accompanying drawing 11 is the utility model specific embodiment 2 control circuit schematic diagrams;
Accompanying drawing 12 is the utility model specific embodiment 3 control circuit schematic diagrams;
Accompanying drawing 13 is the utility model specific embodiment 4 control circuit schematic diagrams;
Accompanying drawing 14 adopts normally closed contact-making switch for the utility model and has the specific embodiment control circuit schematic diagram of electric leakage and overcurrent protection function.
Embodiment
as shown in Figure 1-2, safety socket comprises the housing 2 that is provided with upper cover 1 and is arranged on to be made by metal material in housing 2, the electrode assemblie 3 and the safety protective circuit unit that match with the plug pole piece, every group of electrode assemblie 3 comprises two elastic clips 301 of being made by copper material that are oppositely arranged, the number of electrode assemblie 3 is according to the type of socket, as three plug-and-sockets, arrange three groups, two plug-and-sockets arrange two groups, this specific embodiment is three slotting and two combinations of inserting, namely be provided with two connector assemblies, therefore be provided with altogether five groups of electrode assemblies 3, be provided with printed substrate 4 in housing 2.Housing 2 sidewalls also are provided with lambda line termination 7 and are used for being connected with external power source, and position corresponding with electrode assemblie 3 on upper cover 1 is provided with socket aperture 101; Described safety protective circuit unit comprises contact-making switch, control circuit and main contact; described main contact is normally open contact; the number of described contact-making switch is identical with socket aperture 101 numbers; described main contact is serially connected between electrode assemblie 3 and lambda line termination 7; described contact-making switch is arranged in electrode assemblie 3 between two elastic clips that are oppositely arranged 301 and is relative with socket aperture 101, and described control circuit and electrode assemblie 3 are separately positioned on printed substrate 4 two sides.Wherein main contact consists of the miniature relay normally open contact, and the rated capacity of normally open contact is the rated capacity of socket.safety socket has multiple concrete form, in this specific embodiment 1, described control circuit is take two plug-and-sockets as example, as shown in figure 10, described control circuit comprises a full-wave rectification voltage stabilizing circuit, be connected with lambda line termination 7 after the interchange end series connection decompression capacitor of described full-wave rectifying circuit, all contact-making switches 5 of corresponding same plug are series connection mutually separately, be connected in the direct current output loop of full-wave rectifying circuit together with described miniature relay after contact-making switch 5 series arms of different plugs are parallel with one another, wherein all contact-making switches 5 are normal open switch, only have like this when all contact-making switches 5 are all closed, described miniature relay just has electric adhesive, control closed electrode assemblie 3 and the lambda line termination 7 connected of main contact, electrode assemblie 3 obtains electric.
In order to make elastic clip 301 contact better with the plug pole piece, as shown in Figure 9, in the safety socket, one side of the elastic clip 301 of described electrode assemblie 3 also be provided with meet at right angles the flank 3011 rolled over can with the contacts side surfaces of plug pole piece, increase contact area, the rear side of described two elastic clips 301 is equipped with inverted L-shaped elastic support sheet 302, described elastic support sheet 302 lower ends are fixed, the upper lateral end is resisted against on the trailing flank of described two elastic clips 301,, to increase the pressure to the plug pole piece, reduce contact resistance.
As shown in Figure 1, 2, in order to make safety socket have better Anti-splashing sanitary performance, one deck sheet rubber 6 preferably also has been sticked on upper cover 1 surface of described safety socket, upper cover 1 surface preferably is provided with recessed sheet rubber cavity volume 102, cavity volume 102 bottoms will comprise all socket apertures 101, and the degree of depth is identical with sheet rubber 6 thickness, and sheet rubber 6 position corresponding with socket aperture 101 is provided with " work " font joint-cutting 601, can prevent that so at ordinary times sealing spatters, not hinder again plug to insert.
Change control circuit, safety socket can also increase other functions, as following examples:
specific embodiment 2: as shown in figure 11, this specific embodiment is three slotting and two combinations of inserting, namely be provided with two connector assemblies, therefore be provided with altogether five groups of electrode assemblies 3, wherein three groups of electrode assemblies 3 are one group, another two arrays of electrodes assembly 3 is one group, described control circuit comprises a full-wave rectification voltage stabilizing circuit, leakage protection circuit and current foldback circuit, described main contact consists of the miniature relay normally open contact, all contact-making switches 5 are normal open switch, be divided into two groups, S1 wherein, S2 is one group, S3-S5 is one group, be connected with lambda line termination 7 after the interchange end series connection step-down Resistor-Capacitor Unit of described full-wave rectifying circuit, described miniature relay and switch triode are connected in the direct current output loop of full-wave rectifying circuit, S1, S2 connects mutually, S3-S5 connects mutually, S1 is passed through in the direct current output of described full-wave rectifying circuit again after filtering voltage regulation, the parallel branch of S2 series arm and S3-S5 series arm is output as leakage protection circuit and current foldback circuit provides working power, leakage protection circuit and current foldback circuit can adopt ripe available circuit, described leakage protection circuit is connected output and is connected conducting or the cut-off of control switch triode with the control end of switch triode after " line with " is connected with current foldback circuit.The operation principle of circuit is as follows: all switches in arbitrary group of contact-making switch 5 are not pressed simultaneously, the not output of filtering this moment DC power supply, leakage protection circuit and current foldback circuit do not have operating voltage, the equal output low level of leakage protection circuit and current foldback circuit, the cut-off of control switch triode, described miniature relay, without not adhesive of electricity, is controlled main contact and is cut off connection electrode assemblie 3 and lambda line termination 7, and electrode assemblie 3 is without electricity; When all switches in arbitrary group of contact-making switch 5 are pressed simultaneously, filtering this moment DC power supply is output as leakage protection circuit and current foldback circuit provides operating voltage, leakage protection circuit and current foldback circuit are all exported high level, the conducting of control switch triode, described miniature relay obtains electric adhesive, control main contact and connect electrode assemblie 3 and lambda line termination 7, electrode assemblie 3 obtains electric; Any road output low level in leakage protection circuit and current foldback circuit; while electric leakage and/or overcurrent condition namely being detected; leakage protection circuit and current foldback circuit output low level; the cut-off of control switch triode; described miniature relay is without not adhesive of electricity; control main contact and cut off connection electrode assemblie 3 and lambda line termination 7, electrode assemblie 3, without electricity, plays a protective role.
Specific embodiment 3: by changing the connection of contact-making switch 5, contact-making switch 5 can also be selected normally closed switch.equally take double plug-and-socket as example, as shown in figure 12, this specific embodiment is three slotting and two combinations of inserting, namely be provided with two connector assemblies, therefore be provided with altogether five groups of electrode assemblies 3, wherein three groups of electrode assemblies 3 are one group, another two arrays of electrodes assembly 3 is one group, described control circuit comprises a full-wave rectification voltage stabilizing circuit, be connected with lambda line termination 7 after the interchange end series connection decompression capacitor of described full-wave rectifying circuit, all contact-making switches 5 of corresponding same plug are parallel with one another separately, S1 wherein, S2 is one group, S3-S5 is one group, be connected in parallel in the direct current output loop of full-wave rectifying circuit together with described miniature relay after contact-making switch 5 parallel branches of different plugs are connected mutually, wherein all contact-making switches 5 are normally closed switch, only having so the arbitrary same plug of the correspondence of working as (is S1, S2 is arbitrary group in a group or S3-S5) all contact-making switches while disconnecting (namely by the plug pole piece, being backed down), described miniature relay just has electric adhesive, control closed electrode assemblie 3 and the lambda line termination 7 connected of main contact, electrode assemblie 3 obtains electric.On the basis of this specific embodiment, as shown in figure 14, after adding leakage protection circuit and current foldback circuit, can obtain to have the safety socket of electric leakage and overcurrent protection function.
specific embodiment 4: as shown in figure 13, described control circuit comprises a full-wave rectification voltage stabilizing circuit and load detecting circuit, be connected with lambda line termination 7 after the interchange end series connection step-down Resistor-Capacitor Unit of described full-wave rectifying circuit, be connected on after described miniature relay and switch triode series arm and all contact-making switches 5 are parallel with one another in the direct current output loop of full-wave rectifying circuit, all contact-making switches 5 are normally closed switch, the load that connects on described load detecting circuit test socket, in this specific embodiment, load detecting circuit comprises oscillating circuit and the transformer that is comprised of Schmidt's not gate, oscillating circuit is connected with primary, transformer secondary output is in parallel with socket electrode assembly 3, the output of described load detecting circuit is connected conducting or the cut-off of control switch triode with the control end of switch triode.The operation principle of circuit is as follows: when all contact-making switches 5 be not pressed or not all contact-making switches 5 press simultaneously, have contact-making switch 5 closures at least, the not output of filtering this moment DC power supply, described miniature relay and load detecting circuit are without working power, described miniature relay is without not adhesive of electricity, control main contact and cut off connection electrode assemblie 3 and lambda line termination 7, electrode assemblie 3 is without electricity; When all contact-making switches 5 are all pressed simultaneously, all contact-making switches 5 disconnect, the output of filtering this moment DC power supply, described miniature relay and load detecting circuit obtain working power, oscillating circuit produces the oscillator signal driving transformer, when transformer secondary output has load, the transformer feedback signal diminishes, oscillating circuit is by the inverter drive triode, described miniature relay obtains electric adhesive, controls main contact and connects electrode assemblie 3 and lambda line termination 7, and electrode assemblie 3 obtains electric, then, by feedback branch, make the oscillating circuit failure of oscillation.
normally closed switch and normal open switch used in the utility model can be selected commercially available microswitch, but in order more to be fit to installation site and the use of safety socket, normally closed switch and normal open switch otherwise designed in specific embodiment of the utility model, as in Figure 3-5, wherein said normal open switch structure comprises the insulator foot 502 and the movable top lid 501 that are provided with the cavity volume of upper opening, described cavity volume bottom interval is provided with a pair of fixed contact 504, described movable top lid 501 shapes and cavity volume cross section just as and matched in clearance at the opening part of cavity volume, described movable top lid 501 is the up and down setting of can sliding in cavity volume, described movable top lid 501 is provided with a pair of moving contact 505 accordingly towards the one side of fixed contact 504, be electrically connected between described a pair of moving contact 505, be provided with 503 pairs of movable top lid 501 resiliency supported of Compress Spring between described movable top lid 501 and cavity volume bottom, described a pair of fixed contact 504 respectively is provided with conductive pin and extends to base 502 outsides.
described normally closed switch structure comprises that insulator foot 502 and a longitudinal section that is provided with the cavity volume of upper opening is the travel(l)ing rest of " work " font, described travel(l)ing rest upper head plate, bottom plate and described cavity volume matched in clearance, described travel(l)ing rest is placed in cavity volume, the corresponding travel(l)ing rest upper head plate of described cavity volume sidewall, between bottom plate, position is provided with outstanding a pair of fixed contact 504, the described travel(l)ing rest bottom plate position corresponding with described a pair of fixed contact 504 is provided with a pair of moving contact 505, be electrically connected between described a pair of moving contact 505, be provided with back-moving spring between described cavity volume bottom and travel(l)ing rest bottom plate and make described a pair of moving contact 505 and described a pair of fixed contact 504 Elastic Contact.
described normally closed switch and normal open switch can also be arranged in same switch, as shown in Fig. 6-8, , described contact-making switch 5 comprises the insulator foot 502 and the travel(l)ing rest that are provided with the cavity volume of upper opening, described insulator foot 502 opening parts are provided with a circle chimb, described chimb is provided with a pair of the first fixed contact 504 towards the face of cavity volume bottom, described cavity volume bottom is provided with a pair of the second fixed contact 504, described travel(l)ing rest 506 and described cavity volume matched in clearance, described travel(l)ing rest 506 is placed in cavity volume, on described travel(l)ing rest 506, the position corresponding with described the first fixed contact 504 and the second fixed contact 504, lower surface is provided with respectively a pair of the first moving contact 505 and a pair of the second moving contact 505, mutually be electrically connected between described a pair of the first moving contact 505 and a pair of the second moving contact 505, be provided with back-moving spring between described cavity volume bottom and travel(l)ing rest 506 lower surfaces and make described a pair of the first moving contact 505 and described a pair of the first fixed contact 504 Elastic Contact.Described a pair of moving contact 505 forms normally closed switch with described a pair of the first fixed contact 504, and described a pair of the second moving contact 505 forms normal open switch with described a pair of the second fixed contact 504.
Claims (10)
1. safety socket, comprise the housing that is provided with upper cover and be arranged on and made by metal material in housing, the electrode assemblie that matches with the plug pole piece, also being provided with the lambda line termination on housing is used for being connected with external power source, on cover the position corresponding with electrode assemblie and be provided with socket aperture, it is characterized in that: described safety socket also is provided with the safety protective circuit unit, described safety protective circuit unit comprises contact-making switch, control circuit and main contact, described main contact is normally open contact, the number of described contact-making switch is identical with the socket hole count, described main contact is serially connected between electrode assemblie and lambda line termination, described contact-making switch is arranged in electrode assemblie and is relative with socket aperture, described control circuit is connected with described contact-making switch, all contact-making switches at the same plug of correspondence are subjected under plug pole piece pressed state simultaneously, described control circuit is controlled the main contact closure and is made between electrode assemblie and lambda line termination and be electrically connected to.
2. safety socket according to claim 1, it is characterized in that: described main contact consists of the miniature relay normally open contact, described control circuit comprises a full-wave rectification voltage stabilizing circuit, all contact-making switches are normal open switch, be connected with the lambda line termination after the interchange end series connection decompression capacitor of described full-wave rectifying circuit, all contact-making switches of described miniature relay and corresponding same plug are connected in the direct current output loop of full-wave rectifying circuit.
3. safety socket according to claim 2, it is characterized in that: described safety socket is provided with many group plugs and sockets holes and electrode assemblie, all contact-making switches of corresponding same plug are series connection mutually separately, is connected in the direct current output loop of full-wave rectifying circuit together with described miniature relay after the contact-making switch series arm of different plugs is parallel with one another.
4. safety socket according to claim 1, it is characterized in that: described main contact consists of the miniature relay normally open contact, all contact-making switches are normal open switch, described control circuit comprises a full-wave rectification voltage stabilizing circuit, leakage protection circuit and current foldback circuit, be connected with the lambda line termination after the interchange end series connection step-down Resistor-Capacitor Unit of described full-wave rectifying circuit, described miniature relay and switch triode are connected in the direct current output loop of full-wave rectifying circuit, the direct current output of described full-wave rectifying circuit is output as leakage protection circuit through all contact-making switch series arms again after filtering voltage regulation and current foldback circuit provides working power, described leakage protection circuit is connected output and is connected conducting or the cut-off of control switch triode with the control end of switch triode after " line with " is connected with current foldback circuit.
5. safety socket according to claim 1, it is characterized in that: described main contact consists of the miniature relay normally open contact, all contact-making switches are normally closed switch, described control circuit comprises a full-wave rectification voltage stabilizing circuit, be connected with the lambda line termination after the interchange end series connection step-down Resistor-Capacitor Unit of described full-wave rectifying circuit, be connected in the direct current output loop of full-wave rectifying circuit after described miniature relay and all contact-making switches are parallel with one another.
6. safety socket according to claim 6, it is characterized in that: described safety socket is provided with many group plugs and sockets holes and electrode assemblie, all contact-making switches of corresponding same plug are parallel with one another separately, are connected in parallel in the direct current output loop of full-wave rectifying circuit together with described miniature relay after the contact-making switch parallel branch of different plugs is connected mutually.
7. safety socket according to claim 1, it is characterized in that: described main contact consists of the miniature relay normally open contact, all contact-making switches are normally closed switch, described control circuit comprises a full-wave rectification voltage stabilizing circuit and load detecting circuit, be connected with the lambda line termination after the interchange end series connection step-down Resistor-Capacitor Unit of described full-wave rectifying circuit, be connected on after described miniature relay and switch triode series arm and all contact-making switches are parallel with one another in the direct current output loop of full-wave rectifying circuit, the load that connects on described load detecting circuit test socket, the output of described load detecting circuit is connected conducting or the cut-off of control switch triode with the control end of switch triode.
8. safety socket according to claim 1, it is characterized in that: described electrode assemblie comprises two elastic clips that are oppositely arranged, one side of described elastic clip is provided with the flank that meets at right angles and rolled over, the rear side of described two elastic clips is equipped with the inverted L-shaped elastic support sheet, described elastic support sheet lower end is fixed, and the upper lateral end is resisted against on the trailing flank of described two elastic clips.
9. safety socket according to claim 1, it is characterized in that: one deck sheet rubber that has been sticked on described upper cap surface, the described sheet rubber position corresponding with socket aperture are provided with " work " font joint-cutting.
10. according to claim 7 or 8 described safety sockets, it is characterized in that: described contact-making switch comprises the insulator foot and the travel(l)ing rest that are provided with the cavity volume of upper opening, described insulator foot opening part is provided with a circle chimb, described chimb is provided with a pair of the first fixed contact towards the face of cavity volume bottom, described cavity volume bottom is provided with a pair of the second fixed contact, described travel(l)ing rest and described cavity volume matched in clearance, described travel(l)ing rest is placed in cavity volume, on described travel(l)ing rest, the position corresponding with described the first fixed contact and the second fixed contact, lower surface is provided with respectively a pair of the first moving contact and a pair of the second moving contact, mutually be electrically connected between described a pair of the first moving contact and a pair of the second moving contact, be provided with back-moving spring between described cavity volume bottom and travel(l)ing rest lower surface and make described a pair of the first moving contact and described a pair of the first fixed contact Elastic Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203128493U CN203300902U (en) | 2013-05-31 | 2013-05-31 | Safe socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203128493U CN203300902U (en) | 2013-05-31 | 2013-05-31 | Safe socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300902U true CN203300902U (en) | 2013-11-20 |
Family
ID=49576885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203128493U Expired - Lifetime CN203300902U (en) | 2013-05-31 | 2013-05-31 | Safe socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300902U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326192A (en) * | 2013-05-31 | 2013-09-25 | 陈策 | Safety socket |
-
2013
- 2013-05-31 CN CN2013203128493U patent/CN203300902U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326192A (en) * | 2013-05-31 | 2013-09-25 | 陈策 | Safety socket |
| CN103326192B (en) * | 2013-05-31 | 2016-01-20 | 陈策 | A kind of safety socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131120 Effective date of abandoning: 20160120 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |