CN101958212A - Receptacle type residual current circuit breaker - Google Patents
Receptacle type residual current circuit breaker Download PDFInfo
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- CN101958212A CN101958212A CN2009100551380A CN200910055138A CN101958212A CN 101958212 A CN101958212 A CN 101958212A CN 2009100551380 A CN2009100551380 A CN 2009100551380A CN 200910055138 A CN200910055138 A CN 200910055138A CN 101958212 A CN101958212 A CN 101958212A
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Abstract
The invention provides a receptacle type residual current circuit breaker which comprises a shell as well as a resetting assembly, a core assembly (14) and a testing assembly which are arranged in the shell, wherein the core assembly (14) comprises a circuit board (1410) as well as a magnetic ring assembly (1411) and a tripping assembly which are arranged on the circuit board; a middle layer bracket (11) in the shell is fixedly connected with a pair of receptacle pieces (9, 13); static contact arms provided with static contacts (901, 131) respectively extend out of the receptacle pieces (9, 13), and are used for corresponding to movable electrical contacts (141, 142) of a pair of input movable contact pieces (1406, 1407) arranged in the magnetic ring assembly (1411); the static contact arms are arranged to extend in the same direction; and the tripping assembly is arranged below the input movable contact pieces (1406, 1407) and cooperates with the resetting assembly to act. The circuit breaker has the advantages of simple structure and small outer volume, can be directly installed in a national standard wall junction box, and is safely and reliably suitable for various receptacles.
Description
Technical field
The present invention relates to a kind of residual current circuit breaker, relate in particular to a kind of female type residual current circuit breaker.
Background technology
Residual current circuit breaker is under rated condition, when residual current in the protected circuit surpasses set point, and can automatic shutoff circuit or send the protective relaying device of alarm signal.This device mainly is applicable to and exchanges 50Hz; rated voltage 400V; rated current is to the distribution network of 800A; be used for providing the indirect contact protection to the people; also can be used to prevent because of apparatus insulated damage; the fire hazard that produces earth fault current and cause, and the overload and the short circuit that can be used to distribute electric energy and protection circuit and power-supply device also can be used as not frequent starting of the not frequent transitions of circuit and motor.
Residual current circuit breaker mainly adopts the protection philosophy of cutting off the electricity supply automatically.Conduct prevents the supplementary protection of the basic safeguard measure of shock hazard in protection against direct contact; Conduct prevents to have the limited protection that dangerous voltage causes electrical shock hazard or electrical fire danger because of earth fault makes the electric equipment exposed conductive part in protection against indirect contact.
The common socket of using in the daily life at present only provides two accessory power outlets (one 2 plug-and-socket and one 3 plug-and-socket), and earth leakage protective device is not set.Like this, in use, if electrical appliance generation leak current fault then without any safeguard measure brings very big hidden danger for people's life and production safety.
Often complex structure and use inconvenience of existing earth leakage protective socket on the market.For example the input of some earth leakage protective socket has disposed one 3 and has inserted plug, need insert plug with 3 during use and be inserted in the 3 common plug-and-sockets; The big and complex structure of some earth leakage protective socket volume is not easy to install.
Summary of the invention
At defective of the prior art, the present invention proposes a kind of design of simple in structure but safe and reliable female type residual current circuit breaker, adopt the socket of this design can both realize correct disconnection or closure in all cases, especially can be implemented under the electric leakage situation automatically disengagement failure electric current apace load.
For this reason, female type residual current circuit breaker of the present invention comprises housing and is arranged on reset assembly, cartridge assemblies and test assembly in the housing, and wherein, described cartridge assemblies comprises circuit board and is arranged on magnetic ring component and trip assembley therefor on this circuit board.Be fixedly connected with a pair of socket sheet on the middle layer bracket in housing, extend the fixed contact arm that is provided with fixed contact on it respectively, in order to be arranged on described magnetic ring component in the moving electrical contact of a pair of input movable contact spring corresponding, wherein, described fixed contact arm is set to extend in the same way.Described trip assembley therefor places the below of described input movable contact spring, and with described reset assembly co-operating.
A preferred embodiment of the invention, the described fixed contact brachium weak point that extends in the same way differs.Should be understood that the purpose of design of Yan Shening is in order to reduce the interior spatial structure of whole circuit breaker in the same way.When socket sheet and movable contact spring almost parallel were placed, the length of two fixed contact arms of Yan Shening can be roughly the same in the same way, like this, can reduce perpendicular to the space structure of movable contact spring direction.On the other hand, when socket sheet and the placement of movable contact spring approximate vertical, the fixed contact brachium weak point that then needs to extend in the same way differs, can realize corresponding to each other of fixed contact and moving electrical contact.In this case, all can correspondingly reduce at the parallel direction and the space structure on the vertical direction of movable contact spring, the shell structure that especially can form a kind of squarish is to be applicable to the wall terminal box of domestic standard.
In another preferred embodiment, the test shell fragment in the described test assembly and a described socket sheet are integrally formed.Thus, can form the simulation leakage current with being connected of circuit board by means of socket sheet formation.Preferably, described socket sheet can be connected to described circuit board by a connecting line respectively, and an end of this connecting line passes the wiring hole that is provided with on the described socket sheet and is connected on the socket sheet, and the other end is soldered to described circuit board.At this, described connecting line can be plain conductor, and it has served as the effect that the socket sheet directly is electrically connected to circuit board.Further, when carrying out test operation, can directly link to each other with circuit board with the integrally formed test shell fragment of socket sheet produces leakage current, and does not need additionally to be provided with on circuit board current-limiting resistance.To test shell fragment and the socket sheet is integrally formed, and also can effectively reduce number of molds, save material and be convenient to assembling.
In addition, described trip assembley therefor comprises release, snap close and by bobbin, the electromagnetic component that places the dropout iron core in the bobbin and constitute with dropout spring that described dropout iron core connects, wherein, described snap close is buckled on the iron core draw-in groove of described dropout iron core, and can insert in the snap close storage tank on the described release.
Further, described reset assembly comprises reset button, the return pin of fixedlying connected with this reset button and is sleeved on back-moving spring on the return pin that described return pin is inserted in the through hole that is formed on the described release movably.
Preferably, described snap close is L shaped, is provided with through hole on the end in inserting the snap close storage tank of described release.Correspondingly, described return pin lower end is provided with draw-in groove, and the top of return pin is taper, and described draw-in groove can be snapped in the through hole that is provided with on the described snap close, to realize the co-operating with trip assembley therefor.
Advantageously, described release extends to be provided with from its two ends respectively carries arm, and is carrying the fin that is provided with on the arm to upper process.
Alternatively, circuit breaker of the present invention also can be provided with the indication lamppost, and the one end is connected to the LED element on the circuit board, and the other end is near the opening on housing top, with the operating state of indication circuit breaker.
Alternatively, on described middle layer bracket, also can be fixedly connected with the ground strip assembly.
As the optional execution mode of another kind; also can between described circuit board and input movable contact spring, be provided with an electric arc baffle plate; the infringement of the electric arc that is produced in the time of can not being subjected to the electrical contact separation with the electronic component on the protective circuit plate, this electric arc baffle plate can be made by the insulating material of anti-electric arc.
As seen, than prior art, circuit breaker of the present invention is owing to reduce in the enclosure interior space, thereby the external volume of whole circuit breaker reduces, and is easy for installation, can directly be installed in the wall terminal box of domestic standard; It is simple in structure, greatly reduces the cost of earth leakage protective socket, saves resource; The more important thing is that this breaker safe is reliable, meet the concerned countries standard, the operating status display apparatus of setting can effectively be avoided faulty operation and the use under the defective mode; In addition, the use of circuit breaker of the present invention is very extensive, can be used as earth leakage protective device and uses, and also can be used as switch or socket and use, and applicable to various types of sockets.
Description of drawings
Fig. 1 a-1b is the outside schematic diagram of the female type residual current circuit breaker of an embodiment of the present invention, and wherein Fig. 1 a is a perspective schematic view, and Fig. 1 b and Fig. 1 c are the end view of circuit breaker among Fig. 1 a, and Fig. 1 d is the top view of circuit breaker among Fig. 1 a;
Fig. 2 is the schematic, exploded perspective view of the female type residual current circuit breaker of this execution mode shown in Fig. 1 a-1b;
Fig. 3 a is the perspective schematic view of cartridge assemblies of the female type residual current circuit breaker of this execution mode;
Fig. 3 b is the decomposition diagram of cartridge assemblies shown in Fig. 3 a;
Fig. 4 a is in the schematic sectional view of reset mode for the female type residual current circuit breaker of this execution mode;
Fig. 4 b and Fig. 4 a are similar, show the female type residual current circuit breaker that is in reset mode from another side;
Fig. 5 a is in the schematic sectional view of trip status for the female type residual current circuit breaker of this execution mode;
Fig. 5 b and Fig. 5 a are similar, show the female type residual current circuit breaker that is in trip status from another side;
Fig. 6 is the circuit theory diagrams of this preferred implementation of the present invention.
Description of reference numerals
1 panel, 2 case top lid
3 anti-plug sliding block springs, 4 the two poles of the earth anti-plug slide blocks
5 the two poles of the earth ground connection anti-plug slide block 6 reset button
601 return pins, 602 draw-in grooves
7 test buttons, 701 depression bars
8 indication lamppost 9L line socket sheets
901L fixed contact 902 test shell fragments
903L wiring hole 904,904 ' L socket sheet blade
10 back-moving springs, 11 middle layer bracket
12 ground strip assemblies, 121 earthing screws
122 ground connection pin 13N line socket sheet
131N fixed contact 132N wiring hole
133,133 ' N socket sheet blade, 14 cartridge assemblies
1401 releases, 1402 snap closes
1403 bobbins, 1404 dropout iron cores
1405 dropout spring 1406L movable contact springs
142L moves electrical contact 1407N movable contact spring
141N moves electrical contact 1408L input lug plate
1409N input lug plate 1410 circuit boards
1411 magnetic ring component 1412 are carried the arm fin
1413 iron core draw-in grooves, 1414 snap close draw-in grooves
1415 snap close through holes, 1416 release through holes
1417 snap close storage tanks, 1418 projections
1419 carry arm 1420 electric arc baffle plates
1421 blocking arms, 15 housing bases
16N connecting line 17L connecting line
D1-D4 diode C1-C7 electric capacity
R1-R5 resistance LED light-emitting diode
SOL solenoid MOV piezo-resistance
C54123 integrated chip 1 '-8 ' integrated chip pin
TEST test switch RESET reset switch
Q1 triode RING detection of electrical leakage ring
Embodiment
Below with a kind of female type residual current circuit breaker of the present invention (hereinafter to be referred as circuit breaker) of preferred embodiment describing in detail.Fig. 1 a-1b illustrates this circuit breaker from all angles, wherein, has constituted outside by case top lid 2 and housing base 15, and can cover a panel 1 on case top lid 2, so that the external dimensions of this circuit breaker is more suitable for being used for the wall terminal box of domestic standard.Case top lid 1 is provided with the opening that supplies reset button 6 and test button 7 to protrude out, and inserts the jack of exporting with the formation load that contacts with the socket sheet for plug.
Fig. 2 to Fig. 3 b shows the structure and the position relation of each parts of enclosure interior respectively.Should be understood that, in the present embodiment, be used to describe the structure of each parts of circuit breaker and the statement of locality, for example upper and lower, left and right, preceding and back etc. are not absolute, but relative.When circuit breaker was positioned at position shown in the figure, these statements were suitable.But if the change in location of circuit breaker, these statement meetings change according to the variation of the position of circuit breaker.
At first referring to Fig. 2, be provided with the middle layer bracket of making by insulating material 11 at the mid portion of enclosure interior, can place a pair of socket sheet 9,13 on it.Wherein, socket sheet 9,13 be provided with case top lid 2 on the corresponding socket blade 904,904 of jack ' and 133,133 ', and extend the fixed contact arm that is provided with fixed contact 901,131 from a side respectively, and two fixed contacts are set to extend in the same way.
For being placed in cartridge assemblies 14 housing base 15 in (below will describe), the fixed contact arm and the fixed contact 901,131 thereof of the input movable contact spring 1406,1407 on it and moving electrical contact 141,142 and socket blade are corresponding below described middle layer bracket 11.In this embodiment, with socket sheet 9,13 and 1406, the 1407 approximate vertical settings of input movable contact spring, the fixed contact arm of a socket sheet extends longlyer than the fixed contact arm of another socket sheet thus.In order to make long fixed contact arm keep static relatively, on middle layer bracket 11, can be provided with fixed support.
Above described middle layer bracket 11, be provided with reset assembly and test assembly.Reset assembly by reset button 6, be fixedly connected on the return pin 601 of these reset button 6 belows and the back-moving spring 10 that is sleeved on this return pin is formed, return pin 601 can be passed the through hole that is arranged on the middle layer bracket 11 movably, with described cartridge assemblies 14 on the corresponding component co-operating.Described test assembly comprises test button 7 and test shell fragment 902.Can below test button 7, effectively push test shell fragment 902 by a fixedly connected depression bar 701.In this embodiment, shell fragment 902 can for example L line socket sheet 9 be integrally formed with a described socket sheet in test.The L connecting line 17 that is made of metal can pass the one end wiring hole 903 that is provided with on the described L line socket sheet 9 and be connected on this socket sheet, and the other end is soldered to circuit board the socket sheet is connected directly to circuit board.Like this, the test shell fragment 902 integrally formed with the socket sheet can directly link to each other with circuit board, and produces the simulation leakage current when pushing test button 7.Similarly, on N line socket sheet 13, also can be provided with wiring hole 132, in order to be connected to circuit board by the N connecting line 16 that is connected in this wiring hole 132.
Above described middle layer bracket 11, also can be provided with anti-plug slide block 4 and 5.This anti-plug slide block when initial condition, cover described socket sheet blade above, can prevent the incorrect insertion of foreign matter or plug, and can when correct the insertion, laterally slide with the insertion process of plug, normally use for this circuit breaker to expose socket sheet blade.According to the user demand of this circuit breaker, the jack shape that is provided with on the architectural feature of socket blade and the case top lid 2 can be different.Therefore, but also respective change of the structure of anti-plug slide block.For example, in this embodiment, according to GB 1002 plugs and sockets standards, the load end that socket sheet blade forms can be the rated current of 10A, but the load end of socket sheet blade 904,133 is two pole socket blades, 904 ', 133 ' the load end that forms then be the two poles of the earth band grounding receptacle blade, thereby the jack shape of two kinds of socket sheet correspondences is inconsistent, and the anti-plug slide block 4 that covers respectively on the socket sheet blade is also just different with 5 structure.In addition, in order to realize the horizontal slip of anti-plug slide block, can be each slide block and dispose an anti-plug sliding block spring 3 respectively, and an end of this spring 3 is connected on the anti-plug slide block, the other end is connected on the inwall of case top lid 2 for example.
Here note also that, because what this execution mode adopted is two kinds of load ends that jack combines, thereby only need dispose an earth terminal, and promptly the ground strip assembly 12, and described ground strip assembly 12 comprises and corresponding ground connection pin 122 of earth jack and earthing screw 121.The rated current that it will also be appreciated that the load end of this circuit breaker is not restricted to 10A, also can add the load design of 16A.
Also can be provided with an indication lamppost 8 in inner walls, the one end can be connected to the LED element (not shown among Fig. 2) on the circuit board by the perforation on the middle layer bracket 11, and the other end is then near the opening on the case top lid 2, with the operating state of indication circuit breaker.The position of described opening can be provided with according to actual needs, for example is between the set opening of reset button 6 and test button 7 in Fig. 2.
Referring now to Fig. 3 a and 3b.Cartridge assemblies 14 of the present invention comprises circuit board 1410, is arranged on magnetic ring component 1411 and trip assembley therefor on this circuit board, wherein, described trip assembley therefor comprises release 1401, snap close 1402 and by bobbin 1403, the electromagnetic component that places the dropout iron core 1404 in the bobbin and constitute with dropout spring 1405 that described dropout iron core connects.Described snap close 1402 is preferably L shaped, is provided with through hole 1415 on the end in inserting the snap close storage tank 1417 of described release 1401, and the other end then is provided with snap close draw-in groove 1414, is used to be buckled in the iron core draw-in groove 1413 of described dropout iron core 1404.
Described release 1401 places the below of described input movable contact spring 1406,1407, and extends to be provided with from two ends respectively and carry arm 1419, is used for lifting when resetting described input movable contact spring.Preferably, at the described fin 1412 that also can be provided with on the arm 1419 of carrying, to strengthen the sensitivity that the input movable contact spring is applied action to upper process.This fin can be positioned at the optional position of carrying on the arm, also can extend along any direction, more can only extend along a part of carrying arm.Preferably, this fin can extend the whole length of carrying arm along the bearing of trend of carrying arm, and is positioned at the end near magnetic ring component 1411.
Aforesaid, on release 1401 and catch member 1402, be respectively arranged with release through hole 1416 and snap close through hole 1415, use for the return pin in the reset assembly 601 and pass.Get back to Fig. 2, the lower end of the described return pin 601 in the present embodiment is provided with draw-in groove 602 as can be seen, and described draw-in groove can be snapped in the snap close through hole 1415 that is provided with on the described snap close 1402.The top of return pin 601 is preferably taper, the advantage of She Zhiing is like this, when pressing reset button 6, return pin 601 can be inserted snap close through hole 1415 smoothly by means of the tapered slope on top, and be snapped in the edge of snap close through hole 1415 owing to the effect of dropout spring 1405 makes draw-in groove 602, with further realization reset operation (following will the description).In addition, adopt the return pin of taper, also can be when resetting SOL coil of a conducting, prolonged useful life of SOL coil thus.In order to make return pin 601 more accurate and firmly insert release through hole 1416, also can extend upward and form a projection 1418 along release through hole 1416.
Also can see among Fig. 3, on circuit board 1410, can be connected with metal wiring film, i.e. L input lug plate 1408 and N input lug plate 1409, but buckle is connected with terminal screw shown in Fig. 2 and Fig. 3 a on two lug plates, repeats no more here.In addition, also can between circuit board 1410 and input movable contact spring 1406,1407, be provided with an electric arc baffle plate 1420.In this embodiment, this electric arc baffle plate 1420 can be set to roughly arch, on the coil that covers on bobbin 1403, and can extend a blocking arm 1421 from both sides respectively to block the portions of electronics element on the circuit board 1410, avoid hindering for some reason the arcing damage resistive element and the coil that trip and when moving electrical contact separates with the static contact, produce.
The specific operation process of this execution mode is described below in conjunction with Fig. 4 a-5b and Fig. 6.At first with reference to Fig. 4 a and 4b, what illustrate is to be in operate as normal, i.e. circuit breaker under the reset mode.When pressing reset button 6, the return pin 601 of fixedlying connected with it moves down.Here, can see on the middle layer bracket 11 in the through hole that the confession return pin that is provided with passes through in conjunction with Fig. 2 being provided with flange, this flanged limits the displacement of back-moving spring 10.Therefore, Ci Shi back-moving spring 10 can be compressed.Return pin 601 is passed the snap close through hole 1415 on the described snap close 1402 insertion releases 1401 interior sides thereupon and is moved down, when the draw-in groove on the return pin 601 602 moves to the side of snap close through hole 1415, under the effect of described dropout spring 1405, this side of snap close through hole 1415 laterally moves and buckle enters in this draw-in groove 602.Unclamp reset button 6 this moment, under the effect of described back-moving spring 10, reset button 6 pops up and drives snap close 1402 and then drive release 1401 and moves up, thereby two on the release 1401 carried arm 1419 and position L movable contact spring 1406 and N movable contact spring 1407 thereon can be lifted, and make electrical contact 141,142 respectively with corresponding L line socket sheet 9 and 901,131 contacts of the fixed contact on the N line socket sheet 13, realize conducting of power input of the present invention and load output thus.
Electric leakage trip status shown in Fig. 5 a and the 5b for another example, leak current fault appears in live wire or zero line in the circuit breaker output line that links to each other with electrical appliance, when perhaps leak current fault appears in electrical appliance, magnetic ring component 1411 detects leakage current and produces the signal triggering controllable silicon and makes its conducting, thereby make in the bobbin 1403 in the electromagnetic component electricly and produce the magnetic field that is enough to drive dropout iron core 1404, dropout iron core 1404 drives horizontal snap close 1402 actions at release 1401, the draw-in groove 602 of return pin 601 is skidded off in the snap close through hole 1451 of L shaped snap close 1402, and return pin 601 pops up.At this moment, release 1401 has lost the elastic force of the back-moving spring 10 that passes over from return pin 601 and corresponding whereabouts, and movable contact spring 1406,1407 falls under the elastic reaction of self simultaneously.Thus, moving electrical contact on the movable contact spring 1406,1,407 141,142 was opened with the fixed contact on socket sheet 9,13 tail ends in 901,131 minutes, had promptly realized the disconnection that electric power is connected between power input and the load output, and the power supply of electrical appliance is cut off.
Fig. 6 also shows test circuit and display circuit.Also be parallel with a piezo-resistance MOV in current supply circuit, when producing high voltage suddenly in the power supply, but its transient absorption high voltage is with protective circuit breaker and employed electrical equipment.
Test switch TEST and test resistance R5 have constituted a test circuit, in order to the operating state of regular this circuit breaker of detection.This test circuit is in parallel with L connecting line 17, and is connected to the SOL coil.Thus, aforesaid, make it touch test during shell fragment 902 when pressing test button 7, can provide the simulation leakage current to the SOL coil by the L connecting line 17 that is connected to circuit board, make the SOL conducting action of threading off.
In order to show the operating state of this circuit breaker, also be provided with a display circuit.This display circuit is made of resistance R 1 and LED series connection, and it is connected in parallel between output live wire, the zero line.Reset button 6 in being connected on current supply circuit has power supply output when closed, LED lights, and shows that this circuit breaker is working properly; During reset button 6 escapes in being connected on current supply circuit, output does not have power supply output, and LED goes out, and shows that this circuit breaker does not have power supply output.
Technology contents of the present invention and technical characterstic disclose as above, yet are appreciated that under creative ideas of the present invention, those skilled in the art can make various changes and modifications to said structure, but all belongs to protection scope of the present invention.The description of above-mentioned execution mode is exemplary rather than restrictive.
Claims (13)
1. a female type residual current circuit breaker comprises housing and is arranged on housing interior reset assembly, cartridge assemblies (14) and test assembly, wherein,
Described cartridge assemblies (14) comprises circuit board (1410) and is arranged on magnetic ring component (1411) and trip assembley therefor on this circuit board;
Be fixedly connected with a pair of socket sheet (9 on the middle layer bracket (11) in housing, 13), extend respectively on it and be provided with fixed contact (901,131) fixed contact arm, in order to corresponding with the moving electrical contact (141,142) that is arranged on a pair of input movable contact spring (1406,1407) in the described magnetic ring component (1411), wherein, described fixed contact arm is set to extend in the same way;
Described trip assembley therefor places the below of described input movable contact spring (1406,1407), and with described reset assembly co-operating.
2. female type residual current circuit breaker according to claim 1 is characterized in that, the described fixed contact brachium weak point that extends in the same way differs.
3. female type residual current circuit breaker according to claim 1 is characterized in that, the test shell fragment (902) in the described test assembly is integrally formed with a described socket sheet.
4. according to the described female type residual current circuit breaker of aforementioned arbitrary claim, it is characterized in that, described socket sheet (9,13) respectively by a connecting line (16,17) be connected to described circuit board (1410), one end of this connecting line passes the wiring hole (903,132) that is provided with on the described socket sheet and is connected on the socket sheet, and the other end is soldered to described circuit board (1410).
5. female type residual current circuit breaker according to claim 4, it is characterized in that, described trip assembley therefor comprises release (1401), snap close (1402) and by bobbin (1403), the electromagnetic component that places the dropout iron core (1404) in the bobbin and constitute with dropout spring (1405) that described dropout iron core connects, wherein, described snap close (1402) is buckled on the iron core draw-in groove (1413) of described dropout iron core (1404), and can insert in the snap close storage tank (1417) on the described release (1401).
6. female type residual current circuit breaker according to claim 5, it is characterized in that, the return pin (601) that described reset assembly comprises reset button (6), fixedly connected with this reset button and be sleeved on back-moving spring (10) on the return pin, described return pin (601) is inserted in the through hole (1416) that is formed on the described release (1401) movably.
7. female type residual current circuit breaker according to claim 6 is characterized in that, described snap close (1402) is L shaped, is provided with through hole (1415) on the end in inserting the snap close storage tank (1417) of described release (1401).
8. female type residual current circuit breaker according to claim 7, it is characterized in that, the lower end of described return pin (601) is provided with draw-in groove (602), and the top of return pin (601) is taper, and described draw-in groove can be snapped in described snap close (1402) and go up the through hole (1415) that is provided with.
9. female type residual current circuit breaker according to claim 8 is characterized in that, described release (1401) extends to be provided with from its two ends respectively carries arm (1419).
10. female type residual current circuit breaker according to claim 9 is characterized in that, at the described fin (1412) that is provided with on the arm (1419) to upper process of carrying.
11. female type residual current circuit breaker according to claim 10 is characterized in that, also is provided with indication lamppost (8), the one end is connected to the LED element on the circuit board, and the other end is near the opening on housing top, with the operating state of indication circuit breaker.
12. female type residual current circuit breaker according to claim 11 is characterized in that, also is fixedly connected with ground strip assembly (12) on described middle layer bracket (11).
13. female type residual current circuit breaker according to claim 12 is characterized in that, also is provided with an electric arc baffle plate (1420) between described circuit board (1410) and input movable contact spring (1406,1407).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910055138.0A CN101958212B (en) | 2009-07-21 | 2009-07-21 | Receptacle type residual current circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910055138.0A CN101958212B (en) | 2009-07-21 | 2009-07-21 | Receptacle type residual current circuit breaker |
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| Publication Number | Publication Date |
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| CN101958212A true CN101958212A (en) | 2011-01-26 |
| CN101958212B CN101958212B (en) | 2014-02-19 |
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| CN200910055138.0A Active CN101958212B (en) | 2009-07-21 | 2009-07-21 | Receptacle type residual current circuit breaker |
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| CN2704941Y (en) * | 2004-05-21 | 2005-06-15 | 上海益而益电器制造有限公司 | Leakage protective socket with reversed wiring protective function |
| CN200993948Y (en) * | 2006-11-14 | 2007-12-19 | 上海益而益电器制造有限公司 | Safety earth fault circuit breaker |
| CN201181681Y (en) * | 2008-04-14 | 2009-01-14 | 上海益而益电器制造有限公司 | Trip mechanism and creepage protecting socket with the same |
| CN201263014Y (en) * | 2008-10-07 | 2009-06-24 | 上海益而益电器制造有限公司 | Creepage protecting socket with reverse wire connection protection function |
| CN201532918U (en) * | 2009-07-21 | 2010-07-21 | 上海益而益电器制造有限公司 | Socket-type residual current breaker |
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- 2009-07-21 CN CN200910055138.0A patent/CN101958212B/en active Active
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| CN102509919A (en) * | 2011-10-31 | 2012-06-20 | 黄华道 | Leakage protection socket with inverted wiring protection function |
| CN103457087A (en) * | 2013-09-02 | 2013-12-18 | 苏州路美思电气有限公司 | Electric leakage protection socket |
| CN104599911A (en) * | 2013-10-30 | 2015-05-06 | 益而益(集团)有限公司 | Arc fault circuit breaker |
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| CN104599911B (en) * | 2013-10-30 | 2017-05-03 | 益而益(集团)有限公司 | Arc fault circuit breaker |
| CN111786203A (en) * | 2020-07-06 | 2020-10-16 | 深圳信恳智能电子有限公司 | Lightning protection method for intelligent socket |
| CN112216572A (en) * | 2020-10-16 | 2021-01-12 | 周长鸿 | High-low voltage power distribution cabinet indicating instrument protection against electric shock structure |
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