CN103258693B - There is the two-wire arc extinguishing type residual current circuit breaker of ground wire protection - Google Patents
There is the two-wire arc extinguishing type residual current circuit breaker of ground wire protection Download PDFInfo
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- CN103258693B CN103258693B CN201310187692.0A CN201310187692A CN103258693B CN 103258693 B CN103258693 B CN 103258693B CN 201310187692 A CN201310187692 A CN 201310187692A CN 103258693 B CN103258693 B CN 103258693B
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Abstract
A kind of two-wire arc extinguishing type residual current circuit breaker with ground wire protection, comprise end shell, button, described button snap at dynamic button spring near the side of enclosure axis, dynamic button spring is enclosed within end enclosure axis, one connects wire, and is pressed on the plate washer above magnet steel, when a button is depressed, dynamic button spring makes arc-like motion around enclosure axis, and together with touching with quiet button piece; During release button, dynamic button spring resets and is in normally open; Beneficial effect of the present invention: adopt less pushbutton unit to save more space cleverly and make way for the breaking capacity that arc-control device improves circuit breaker; Operating mechanism no longer to lean against on arc striking piece location with moving contact but is rested on housing by the support in mechanism and locates, and during breaker open operation, moving contact and arc striking piece can not high temperature adhesions, and solving circuit breaker can not the problem of U-shaped brake.
Description
Technical field
The present invention relates to a kind of residual current circuit breaker, particularly a kind of high breaking capacity residual current circuit breaker opened without lengthening, unimodular number, double break.
Background technology
Unimodular number double break opens the scope that residual current circuit breaker belongs to miniature circuit breaker, rated voltage 230V/400V, below rated current 63A; used width is 18mm, and feature is that volume is little, conserve space; function is many, and creepage protection function is enclosed within current coil by potential winding and realizes.
The two ends of circuit breaker are respectively equipped with two wire frames, and have a lot of client need not this regular circuit breakers in the European mode of connection, but use neutral line end of incoming cables and leading-out terminal to be in the circuit breaker of same one end, and leading-out terminal is wire frame, and end of incoming cables is wire.
It is all have four wire frames that conventional single mode number double break opens residual current circuit breaker, divide two groups of two ends dropping on circuit breaker, such mode of connection does not meet Some European customer requirement, and these arc-extinguishing chamber of circuit breaker are very little, or only have a phase line pole arc-extinguish chamber, arc extinguishing ability is weak, circuit breaker performance defectiveness, circuit breaker or circuit is easily burnt when there is short circuit in circuit, cause fire incident, occur to reduce above-mentioned hidden danger, traditional product only could promote the breaking capacity of leaking circuit breaker when increasing length.
And with line to meet the product that Some European client wiring requires be all the product only increasing circuit breaker length, and neutral pole wire just reaches outside circuit breaker after crossing zero-sequence transformer, there is no the function that isopen pole disconnects together simultaneously and closes, product is single-phase disconnected lock, and neutral pole is straight-through conductor.
Similar products shortcoming is as follows: one, conventional unimodular number double break opens residual current circuit breaker is that two wire frames are placed at two ends respectively, can not meet the requirement of Some European terminal block, and breaking capacity is low and patent of the present invention does not have comparativity, two, the single mode phase residual current circuit breaker product that breaks lengthened is oversize, affect attractive in appearance, more affect versatility, the distribution box strengthened is not had often to fail to lay down these products, product itself also needs more material manufacture, and the economizing type spirit advocated with the mankind is not inconsistent, and the increasing distribution box installation that this product needed is special, volume is too fat to move, takies larger place, three, although the single mode lengthened breaks, phase residual current circuit breaker can meet the installation requirement of portions of client, breaking capacity may, but product itself has the defect of design, the neutral pole wire of circuit breaker was the conductor directly led to after zero-sequence transformer outside circuit breaker, can not to disconnect together with phase line pole and by arc extinguishing simultaneously, when phase line pole and neutral pole mis-wired, the accident that user gets an electric shock can be caused, the product of reason to be this product be two inlet wire, user easily thinks that two-wire has protection, easily think that when circuit breaker opens phase pole and neutral pole are all disconnect by mistake, such structure is easy to make client's general idea, appearance accident.
Summary of the invention
For solving the problems referred to above that prior art exists, the invention provides the residual current circuit breaker that a kind of miniaturized unimodular number double break is opened, object is that circuit breaker phase line and the neutral line also have high breaking capacity while can disconnecting, make the structure of circuit breaker more reasonable, improve the security performance of circuit breaker, use more safe and reliable, and meet the wiring requirement of part European users.
To achieve these goals, the technical solution used in the present invention is:
A kind of two-wire arc extinguishing type residual current circuit breaker with ground wire protection, comprise end shell, button, described button snap at dynamic button spring near the side of enclosure axis, dynamic button spring is enclosed within end enclosure axis, one connects wire, and is pressed on the plate washer above magnet steel, when a button is depressed, dynamic button spring makes arc-like motion around enclosure axis, and together with touching with quiet button piece; During release button, dynamic button spring resets and is in normally open;
Described residual current circuit breaker also comprises middle cover, upper cover, phase line pole and neutral pole separate by described middle cover, neutral pole arc-extinguish chamber is provided with below neutral pole fixed contact, neutral pole arc-extinguish chamber is arranged on neutral pole arc striking piece, described neutral pole arc striking piece one end is connected with neutral pole conductor, also be connected with flexible conductor one end of neutral pole moving contact simultaneously, end of incoming cables, phase line pole, residual current circuit breaker one end is only provided with a phase terminal frame, neutral line end of incoming cables is that a wire and phase line outlet wire frame and neutral pole outlet wire frame are with the other end being in residual current circuit breaker, described neutral pole conductor is be enclosed in the cavity of neutral pole in phase line inlet wire side, and be attempted by wire outside the one end of stretching out residual current circuit breaker in the groove of outer casing bottom neutral pole arc-extinguish chamber bottom side, the end.
On the axle of end shell, cover has support, described support both sides are equipped with phase line pole moving contact and neutral pole moving contact respectively, on two moving contacts, spiral-lock the first torsion spring and the second torsion spring respectively, also snap close is filled with below the moving contact of phase line pole with on support coaxial position, described snap close top side end position is bayonet shape, back-moving spring trailer card is in bayonet socket, described cantilever tip is equipped with a tripping, tripping is rotated along axle, tripping and handle are by link transmission, and the handle that closes pushes tripping by connecting rod and drives support to rotate until residual current circuit breaker closes along axle;
Residual current circuit breaker separating brake after-poppet moves by being parked on Shell of circuit breaker along axle, and described housing comprises end shell, middle cover, upper cover.
Upper cover and end shell are separated the adjacent phase line pole arc control device of formation and neutral pole arc control device by the middle cover of residual current circuit breaker, phase line pole arc-extinguish chamber is placed with respectively in arc control device, neutral pole arc-extinguish chamber, phase line pole arc striking piece is placed along middle cover arcuation, phase line pole arc striking piece one is stuck in middle cover one side, other end doubling be welded on bimetal leaf below the moving contact of phase line pole, whenever phase line pole moving contact does not contact with phase line pole arc striking piece, neutral pole arc striking piece one end is welded with conductor one end in addition, and start to be separated by the plate washer on housing at joint with conductor and be placed on bottom the arc-extinguish chamber of neutral line pole in the same way, neutral pole arc striking piece external part is stuck on the another side of middle cover, whenever neutral pole moving contact does not contact neutral pole arc striking piece.
Wiring board is positioned in the bottom shell of residual current circuit breaker, and wiring board is also welded ground wire, and ground wire and conductor reach the bottom outer of described residual current circuit breaker one end in the same way.
Residual current circuit breaker top is provided with indication window, disconnection, the "on" position indicating device of residual current circuit breaker are positioned at immediately below indication window, described indicating device is the arm body protruded from side face, be connected as a single entity with support, residual current circuit breaker disconnects with when closing a floodgate, indicating device is with support back and forth movement, and two positions calmly lived show disconnection and the "on" position that two kinds of different colours represent described residual current circuit breaker respectively.
The current coil be provided with and potential winding are positioned at below pushbutton unit, potential winding is positioned at current coil, zero-sequence transformer is provided with below their side, through phase line and the neutral line in zero-sequence transformer, zero-sequence transformer tap lead is crossed neutral pole and is gone out arc eyelet welding and receive on wiring board, and wiring board is positioned at the bottommost of residual current circuit breaker.
Beneficial effect of the present invention: adopt less pushbutton unit to save more space cleverly and make way for the breaking capacity that arc-control device improves circuit breaker; Operating mechanism no longer to lean against on arc striking piece location with moving contact but is rested on housing by the support in mechanism and locates, and during breaker open operation, moving contact and arc striking piece can not high temperature adhesions, and solving circuit breaker can not the problem of U-shaped brake; The snap close end of operating mechanism is provided with bayonet socket, and reset bullet is stuck in bayonet socket, avoids spring sideslip and makes breaker actuation unreliable; Neutral pole no longer directly stretches out outside circuit breaker, and be through operating mechanism as phase line extremely divide, close a floodgate and utilize arc-extinguish chamber arc extinguishing, even if such structure also can guarantee the personal safety of user when client connects anti-line, when circuit breaker disconnects maintenance time, ensure that two-wire is all in off-position, avoid user or maintenance personal's accidental shock.
Accompanying drawing explanation
Fig. 1 is schematic perspective view of the present invention;
Fig. 2 is the structural representation after upper cover;
Fig. 3 is the structural representation after bottom;
Fig. 4 carries indicator holder structural representation;
Fig. 5 is cradle back structural representation;
Fig. 6 is buckle structure schematic diagram;
Fig. 7 is bottom internal structure schematic diagram.
Embodiment
As shown in Fig. 1-Fig. 7, a kind of residual current circuit breaker, comprise end shell 1, button 2, described button 2 is stuck in dynamic button spring 3 near the side of enclosure axis 4, dynamic button spring 3 is enclosed within end enclosure axis 4, one connects wire 5, be pressed on the plate washer 7 above magnet steel 6, when pressing the button 2, dynamic button spring 3 makes arcuation small movements around axle 4, and together with touching with quiet button piece 8, during release button 2, dynamic button spring 3 resets and is in normally open, because button 2 is stuck in the position of spring by axle 4, spring 3, axle 4, button 2 forms a leverage, press the button, press the larger stroke that less stroke can obtain spring end, meeting IEC to the requirement of miniature circuit breaker pushbutton unit stroke distances substantially reduces the volume of device.
Residual current circuit breaker also comprises middle cover 22, upper cover 23, phase line pole and neutral pole separate by described middle cover 22, neutral pole arc-extinguish chamber 10 is provided with below neutral pole fixed contact 9, neutral pole arc-extinguish chamber 10 is seated on neutral pole arc striking piece 11, described neutral pole arc striking piece 11 one end is connected with neutral pole conductor 12, also be connected with flexible conductor 37 one end of neutral pole moving contact 17, one end (i.e. end of incoming cables, phase line pole) of described residual current circuit breaker is only provided with a phase terminal frame 21, and neutral line inlet wire wire frame is not set, neutral line end of incoming cables is a wire 14 and phase line outlet wire frame 19 and the same other end being in residual current circuit breaker of neutral pole outlet wire frame 20, described neutral pole conductor 12 is be enclosed in the cavity of neutral pole in phase line inlet wire side, and be attempted by wire 14 outside the one end of stretching out described residual current circuit breaker in neutral pole arc-extinguish chamber bottom side groove 13 bottom end shell 1.
On shell 1 axle 16 at the bottom of residual current circuit breaker, cover has support 15, described support both sides are equipped with phase line pole moving contact 27 and neutral pole moving contact 17 respectively, on two moving contacts, spiral-lock the first torsion spring 38 and the second torsion spring 40 respectively, phase line pole moving contact 27 is also filled with snap close 41 below with on support coaxial position, described snap close 41 top side end position is bayonet shape, back-moving spring 42 trailer card is in bayonet socket 43, a tripping 44 is equipped with on described support 15 top, tripping 44 is rotated along axle, tripping 44 and handle 45 are by connecting rod 46 transmission, the handle 45 that closes pushes tripping by connecting rod 46 and drives support 15 to rotate until residual current circuit breaker closes along axle.
Residual current circuit breaker separating brake after-poppet 15 moves by being parked on Shell of circuit breaker along axle, and housing comprises end shell 1, middle cover 22, upper cover 23.
Upper cover 23 and end shell 1 are separated the adjacent phase line pole arc control device 24 of formation and neutral pole arc control device 25 by the middle cover 22 of described residual current circuit breaker.Phase line pole arc-extinguish chamber 26 is placed with respectively in arc control device, neutral pole arc-extinguish chamber 10, phase line pole arc striking piece 28 is placed along middle cover arcuation, phase line pole arc striking piece 28 1 is stuck in middle cover 22 one side, other end doubling be welded on bimetal leaf 18 below phase line pole moving contact 27, whenever phase line pole moving contact 27 does not contact with phase line pole arc striking piece 28, neutral pole arc striking piece 11 one end is welded with conductor 12 one end in addition, and start to be separated by the plate washer 49 on housing to be placed on bottom neutral line pole arc-extinguish chamber 10 in the same way at joint with conductor 12, neutral pole arc striking piece 11 external part is stuck on the another side of middle cover, whenever neutral pole moving contact 17 does not contact neutral pole arc striking piece 11.
Wiring board 39 is positioned in the bottom shell of residual current circuit breaker, and wiring board 39 is also welded ground wire 37, and ground wire 37 and conductor 12 reach the bottom outer of described residual current circuit breaker one end in the same way.
Residual current circuit breaker top is provided with indication window 29, the disconnection of described residual current circuit breaker, "on" position indicating device 18 are positioned at immediately below indication window 29, described indicating device 18 is the arm bodies protruded from support 15 side, be connected as a single entity with support 15, residual current circuit breaker disconnects with when closing a floodgate, arm body 18 is with support back and forth movement, and two positions calmly lived show disconnection and the "on" position that two kinds of different colours represent described residual current circuit breaker respectively.
The current coil 32 be provided with and potential winding 30 are positioned at below pushbutton unit, potential winding is positioned at current coil, zero-sequence transformer 33 is provided with below their side, through phase line 34 and the neutral line 35 in zero-sequence transformer 33, zero-sequence transformer tap lead 31 mistake neutral pole goes out arc hole 36 and is welded on wiring board 39, and wiring board is positioned at the bottommost of residual current circuit breaker.
Claims (4)
1. one kind has the two-wire arc extinguishing type residual current circuit breaker of ground wire protection, comprise end shell (1), button (2), it is characterized in that: described button (2) is stuck in the side of dynamic button spring (3) near enclosure axis (4), dynamic button spring (3) is enclosed within enclosure axis (4), one head connects wire (5), and be pressed on the plate washer (7) above magnet steel (6), when pressing the button (2), dynamic button spring (3) makes arc-like motion around enclosure axis (4), and together with touching with quiet button piece (8); Time release button (2), dynamic button spring (3) resets and is in normally open;
Described residual current circuit breaker also comprises middle cover (22), upper cover (23), neutral pole fixed contact (9) below is provided with neutral pole arc-extinguish chamber (10), neutral pole arc-extinguish chamber (10) is arranged on neutral pole arc striking piece (11), described neutral pole arc striking piece (11) one end is connected with neutral pole conductor (12), also be connected with flexible conductor (37) one end of neutral pole moving contact (17) simultaneously, end of incoming cables, phase line pole, residual current circuit breaker one end is only provided with a phase terminal frame (21), neutral line end of incoming cables is a wire (14), itself and phase line outlet wire frame (19) and neutral pole outlet wire frame (20) are with the other end being in residual current circuit breaker, described neutral pole conductor (12) is be enclosed in the cavity of neutral pole in phase line inlet wire side, and be attempted by wire (14) outside the one end of stretching out residual current circuit breaker in end shell (1) bottom neutral pole arc-extinguish chamber bottom side groove (13),
The upper cover of axle (16) at shell of the described end (1) has support (15), described support both sides are equipped with phase line pole moving contact (27) and neutral pole moving contact (17) respectively, on two moving contacts, spiral-lock the first torsion spring (38) and the second torsion spring (40) respectively, phase line pole moving contact (27) is also filled with snap close (41) below with on support coaxial position, described snap close (41) top side end position is bayonet shape, back-moving spring (42) trailer card is inner at bayonet socket (43), a tripping (44) is equipped with on described support (15) top, tripping (44) is rotated along axle, tripping (44) and handle (45) are by connecting rod (46) transmission, the handle (45) that closes pushes tripping by connecting rod (46) and drives support (15) to rotate until residual current circuit breaker closes along axle,
Residual current circuit breaker separating brake after-poppet (15) moves by being parked on Shell of circuit breaker along axle;
Upper cover (23) and end shell (1) are separated adjacent phase line pole arc control device (24) of formation and neutral pole arc control device (25) by the middle cover (22) of described residual current circuit breaker, phase line pole arc-extinguish chamber (26) is placed with respectively in arc control device, neutral pole arc-extinguish chamber (10), phase line pole arc striking piece (28) is placed along middle cover arcuation, phase line pole arc striking piece (28) one is stuck in middle cover (22) one side, other end is in phase line pole moving contact (27) below doubling be welded on bimetal leaf, whenever phase line pole moving contact (27) does not contact with phase line pole arc striking piece (28), neutral pole arc striking piece (11) one end is welded with neutral pole conductor (12) one end in addition, and start to be separated by the plate washer (49) on housing to be placed on bottom, neutral line pole arc-extinguish chamber (10) in the same way at joint with neutral pole conductor (12), neutral pole arc striking piece (11) external part is stuck on the another side of middle cover, whenever neutral pole moving contact (17) does not contact neutral pole arc striking piece (11).
2. there is the two-wire arc extinguishing type residual current circuit breaker of ground wire protection as claimed in claim 1; it is characterized in that: wiring board (39) is positioned in the bottom shell of residual current circuit breaker; wiring board (39) is also welded ground wire (37), ground wire (37) and neutral pole conductor (12) reach the bottom outer of described residual current circuit breaker one end in the same way.
3. there is the two-wire arc extinguishing type residual current circuit breaker of ground wire protection as claimed in claim 2, it is characterized in that: residual current circuit breaker top is provided with indication window (29), the disconnection of residual current circuit breaker, "on" position indicating device (18) is positioned at immediately below indication window (29), described indicating device (18) is the arm body protruded from support (15) side, be connected as a single entity with support (15), when residual current circuit breaker disconnects or closes a floodgate, indicating device (18) is with support back and forth movement, two positions calmly lived show disconnection or the "on" position that two kinds of different colours represent described residual current circuit breaker respectively.
4. there is the two-wire arc extinguishing type residual current circuit breaker of ground wire protection as claimed in claim 3; it is characterized in that: the current coil (32) be provided with and potential winding (30) are positioned at below pushbutton unit; potential winding is positioned at current coil; zero-sequence transformer (33) is provided with below their side; through phase line (34) and the neutral line (35) in zero-sequence transformer (33); zero-sequence transformer tap lead (31) mistake neutral pole goes out arc hole (36) and is welded on wiring board (39), and wiring board is positioned at the bottommost of residual current circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310187692.0A CN103258693B (en) | 2013-05-20 | 2013-05-20 | There is the two-wire arc extinguishing type residual current circuit breaker of ground wire protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310187692.0A CN103258693B (en) | 2013-05-20 | 2013-05-20 | There is the two-wire arc extinguishing type residual current circuit breaker of ground wire protection |
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| Publication Number | Publication Date |
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| CN103258693A CN103258693A (en) | 2013-08-21 |
| CN103258693B true CN103258693B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310187692.0A Active CN103258693B (en) | 2013-05-20 | 2013-05-20 | There is the two-wire arc extinguishing type residual current circuit breaker of ground wire protection |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531580A (en) * | 2016-11-09 | 2017-03-22 | 首瑞（天津）电气设备有限公司 | Micro breaker and distribution system |
| CN113972099B (en) * | 2020-07-22 | 2025-04-01 | 浙江正泰电器股份有限公司 | A compact reclosing circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2938387Y (en) * | 2006-08-29 | 2007-08-22 | 浙江天正电气股份有限公司 | Leakage circuit breaker |
| CN201490138U (en) * | 2009-08-28 | 2010-05-26 | 李文俊 | Arc-extinguisher of double-line circuit breaker with earth leakage protective function |
| CN101976642A (en) * | 2010-11-24 | 2011-02-16 | 戴英夫 | Earth leakage circuit breaker with extended line |
| CN203300576U (en) * | 2013-05-20 | 2013-11-20 | 李文俊 | Dual-line arc-extinguishing type earth leakage circuit breaker having grounding wire protection function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4507944B2 (en) * | 2005-03-29 | 2010-07-21 | 三菱電機株式会社 | Earth leakage breaker |
-
2013
- 2013-05-20 CN CN201310187692.0A patent/CN103258693B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2938387Y (en) * | 2006-08-29 | 2007-08-22 | 浙江天正电气股份有限公司 | Leakage circuit breaker |
| CN201490138U (en) * | 2009-08-28 | 2010-05-26 | 李文俊 | Arc-extinguisher of double-line circuit breaker with earth leakage protective function |
| CN101976642A (en) * | 2010-11-24 | 2011-02-16 | 戴英夫 | Earth leakage circuit breaker with extended line |
| CN203300576U (en) * | 2013-05-20 | 2013-11-20 | 李文俊 | Dual-line arc-extinguishing type earth leakage circuit breaker having grounding wire protection function |
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| CN103258693A (en) | 2013-08-21 |
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