CN105244239A - Tripping mechanism on residual current operated protective device - Google Patents
Tripping mechanism on residual current operated protective device Download PDFInfo
- Publication number
- CN105244239A CN105244239A CN201510790799.3A CN201510790799A CN105244239A CN 105244239 A CN105244239 A CN 105244239A CN 201510790799 A CN201510790799 A CN 201510790799A CN 105244239 A CN105244239 A CN 105244239A
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- China
- Prior art keywords
- breach
- return unit
- swing arm
- tripping
- base
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention relates to a residual current operated protective device, in particular to a tripping mechanism on a residual current operated protective device. The tripping mechanism adopts the technology that: the tripping mechanism on the residual current operated protective device is characterized in that a lock catch is provided with a first swing arm and a second swing arm, a shift lever is arranged on the second swing arm, the first swing arm is provided with a first notch and a second notch, the first notch is used for being connected with a movable iron core on a tripping coil, a reset piece is provided with a convex rod on one side facing the first swing arm, and the second notch is in inserting fit or separating fit with the convex rod. By adopting the scheme, the problems in the prior art are overcame, and the tripping mechanism on the residual current operated protective device provided by the invention improves tripping speed and stability by increasing a tripping force of the whole mechanism through superposing a reset force of the reset piece to the tripping force of the tripping mechanism, and has the advantages of simple structure, stable operation and convenient installation.
Description
Technical field
The present invention relates to a kind of RCD, refer to the tripping mechanism on RCD especially.
Background technology
In electronic type RCD; the residual current acting function of product is realized by the tripping mechanism Direct driver breaker portion action of electric leakage module; when requiring that in action dropout module action speed is fast, energy is guaranteed greatly electric leakage occurs, RCD can disconnect rapidly and accurately; thus disengagement failure power supply, the protection person and device security.
In this context, the dropout actuating force that electric leakage module can provide becomes an important parameter, directly affects the residual current acting time of product and the reliability of residual current protecting function.
The mechanism of electric leakage module is different from the mechanism of breaker type, does not possess energy storage device.Dropout actuating force is provided by tripping coil completely, and dropout actuating force size depends on the parameter of tripping coil and sound iron core; There is unstable situation in the supply voltage that the environment for use due to RCD determines electric leakage module; when there is low-voltage; electric leakage module dropout actuating force may be caused smaller; during this time there is leak current fault and likely will occur that RCD can not disengagement failure power supply; or situation about cutting off not in time, can cause electric leakage accident.
Will will solve the problem, can not improve the parameter of release simply, otherwise when can cause rated voltage, the impulsive force of electricity release work is excessive, the life-span of RCD will shorten, and also can cause the waste on cost simultaneously.
Through retrieval, applicant finds that the patent No. is the patent of " tripping mechanism on a kind of RCD " of 201310428214.4 in addition, the technical characteristic of this patent is: include base, tripping coil, return unit and snap close, wherein snap close is rotated by bearing pin and is arranged on base, described return unit is movably arranged on base, it is characterized in that: also include back-moving spring, one end of this back-moving spring acts on base, the other end acts on return unit, described snap close is fixedly installed force rod, described return unit is provided with the boss that force rod can be driven to rotate, the top of this boss is provided with the cavity that can swing for force rod.Described snap close is also fixedly installed transmission arm and driving lever, and wherein the top of driving lever is provided with U-shaped draw-in groove, and driving lever is connected by the dynamic iron core on U-shaped draw-in groove and tripping coil.Described snap close is also fixedly installed transmission arm and driving lever, and wherein the top of driving lever is provided with U-shaped draw-in groove, and driving lever is connected by the dynamic iron core on U-shaped draw-in groove and tripping coil; Described snap close is separately provided with snap fit, described return unit is provided with the chuck that can coordinate position reset part with snap fit, described base is provided with guiding slippage chamber, return unit is placed in this guiding slippage chamber, described return unit side is provided with cavity, back-moving spring is placed in this cavity, conflict on the bottom surface of cavity in back-moving spring one end, the other end is conflicted on the projection of base, described return unit is provided with spacing block set, described base is provided with and forms the spacing limit chamber coordinated of return unit with spacing block set.Said structure solves protector can not disengagement failure power supply or the situation not in time of cut-out, but self also exists some defects, as the complex structure of snap close, installs inconvenient, and difficulty of processing is large waits series of problems.
Summary of the invention
The present invention overcomes prior art Problems existing; a kind of reset force using return unit is provided to be added in the tripping force of mechanism; improve the tripping force of whole mechanism; thus promote trip speed and stability; structure is simple in addition, the tripping mechanism on novel RCD stable, easy for installation.
The present invention adopts following technology: the tripping mechanism on a kind of RCD, include base, tripping coil, back-moving spring, return unit and snap close, wherein snap close is rotated by bearing pin and is arranged on base, described return unit is movably arranged on base, one end of back-moving spring acts on base, the other end acts on return unit, it is characterized in that: described snap close is provided with the first swing arm and the second swing arm, described second swing arm is provided with driving lever, described first swing arm is provided with the first breach and the second breach, first breach connects for the dynamic iron core on tripping coil, described return unit is provided with nose bar on the side of the first swing arm, second breach becomes to insert with nose bar and coordinates or be separated cooperation, when dynamic iron core retraction, dynamic iron core drives snap close to rotate to make nose bar to be separated the second breach return unit simultaneously of conflicting on the sidewall of the first swing arm and to be reset spring jack-up, press down return unit to make nose bar insert the second breach to realize the spacing cooperation of the second breach to nose bar.
By adopting such scheme, manner of execution of the present invention is, the first stage: nose bar inserts in the second breach, and now return unit is in pressed status, second stage: mechanism moves under tripping coil active force, dynamic iron core produces pulling force makes the first swing arm rotate, and nose bar is separated from the second breach conflicts on the side of the first swing arm, and snap close produces actuating force, phase III: the while of with second stage, return unit ascending motion, when ascending motion, nose bar produces thrust to the first swing arm and produces momentum to snap close, thus make screw-home movement speed faster, actuating force is larger, the climbing power of that is using return unit is added in the tripping force of mechanism, improve the tripping force of whole mechanism, thus promote de-mouth speed and stability, above-mentioned whole mechanism is simple, the structure of snap close is simply easy for installation, the transmission of power is more stable, better effects if, nose bar is conflicted on the side of the first swing arm in addition, that nose bar is arranged snap close locking, thus make the driving lever of the second swing arm realize pinning to circuit breaker, prevent it from closing a floodgate.Finally by pressing down return unit, snap close rotates, and make nose bar enter the second breach and realize nose bar and the second breach is spacing, snap close is in normal condition, and the driving lever of number of times second swing arm does not lock circuit breaker, then circuit breaker can close a floodgate.
The further setting of the present invention is: the top of described dynamic iron core is provided with annular groove, and described annular groove is fastened in the first breach, and described first swing arm is positioned at tripping coil side and is provided with inclined-plane, and this inclined-plane is corresponding with annular groove upper portion.
By further setting, the further optimization to product of the present invention, the cooperation of action is more sensitive, further guarantee realizes improving the actuating force of mechanism and the object of mechanism kinematic speed, its annular recess the push and pull that can realize breach is set, easy for installation, it is ensure that dynamic iron core stretches unaffected that inclined-plane is arranged, and there will not be stuck phenomenon.
The further setting of the present invention is: described return unit is provided with rectangle containing cavity near the side of protector base; the both sides of rectangle containing cavity are guide edge; described back-moving spring is placed in this rectangle containing cavity; guide edge and the gathering sill on base form slippage of leading and coordinate; described return unit is provided with gag lever post relative on the opposite side of nose bar; described base is provided with limitting casing, and backstay slippage in limitting casing realizes the spacing movement of return unit.
By further setting, adopt said structure to be in order to return unit moves stable, there will not be stuck phenomenon, can well ensure that return unit is capable of expansion and contraction in addition, do not affect installation and the motion of miscellaneous part.
Last setting of the present invention is: be provided with in the middle part of the side of described return unit relative to the opposite side of rectangle containing cavity and keep out convex tendon, this is kept out convex tendon and can form to keep out with the top of dynamic iron core and coordinate, described first breach is U-shaped breach, and described second breach is U-shaped breach or through hole.
By further setting, wherein keep out the displacement that convex tendon ensures dynamic iron core, the first breach and the second breach adopt such scheme to arrange greatly convenient installation.
Below in conjunction with drawings and embodiments, the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the stereogram after embodiment of the present invention return unit presses down;
Fig. 2 is the A portion enlarged drawing in Fig. 1;
Fig. 3 is the stereogram after embodiment of the present invention return unit is upspring;
Fig. 4 is the B portion enlarged drawing in Fig. 3;
Fig. 5 is the stereogram of embodiment of the present invention base;
Fig. 6 is the structure chart of embodiment of the present invention reflection back-moving spring;
Fig. 7 is the stereogram of embodiment of the present invention snap close;
Fig. 8 is the stereogram of embodiment of the present invention return unit.
Specific embodiment
As Figure 1-Figure 8, tripping mechanism on a kind of RCD, include base 1, tripping coil 2, back-moving spring 3, return unit 4 and snap close 5, wherein snap close 5 is rotated by bearing pin and is arranged on base 1, described return unit 4 is movably arranged on base 1, one end of back-moving spring 3 acts on base 1, the other end acts on return unit 4, above-mentioned technical characteristic is also common in the prior art, so be just not described in detail in the present embodiment, in the present embodiment, described snap close 5 is provided with the first swing arm 51 and the second swing arm 52, described second swing arm 52 is provided with driving lever 521, described first swing arm 51 is provided with the first breach 511 and the second breach 512, first breach 511 connects for the dynamic iron core 21 on tripping coil 2, described return unit 4 is provided with nose bar 41 on the side of the first swing arm 51, second breach 512 inserts with nose bar 41 one-tenth and coordinates or be separated cooperation, when dynamic iron core 21 bounces back, dynamic iron core 21 drives snap close 5 to rotate to make nose bar 41 to be separated the second breach 512 return unit 4 simultaneously of conflicting on the sidewall of the first swing arm 51 and to be reset spring 3 jack-up, press down return unit 4 nose bar 41 is inserted spacing cooperation that the second breach 512 realizes the second breach 512 pairs of nose bars 41.By adopting such scheme, manner of execution of the present invention is, the first stage: nose bar 41 inserts in the second breach 512, and now return unit 4 is in pressed status; Second stage: mechanism moves under tripping coil 2 active force, dynamic iron core 21 produces pulling force makes the first swing arm 51 rotate, and nose bar 41 is separated from the second breach 512 conflicts on the side of the first swing arm 51, and snap close 5 produces actuating force; Phase III: the while of with second stage, return unit 4 ascending motion, when ascending motion, nose bar 41 produces thrust to the first swing arm 51 and produces momentum to snap close 5, thus makes snap close 5 movement velocity faster, actuating force is larger, the climbing power of that is using return unit 4 is added in the tripping force of mechanism, improves the tripping force of whole mechanism, thus promotes de-mouth speed and stability, above-mentioned whole mechanism is simple, the structure of snap close 5 is simply easy for installation, and the transmission of power is more stable, better effects if.
In embodiments of the present invention, the top of described dynamic iron core 21 is provided with annular groove 211, described annular groove 211 is fastened in the first breach 511, described first swing arm 51 is positioned at tripping coil 2 side and is provided with inclined-plane 513, this inclined-plane 513 is corresponding with annular groove 211 upper portion, it is ensure that dynamic iron core 21 stretches unaffected that inclined-plane 513 is arranged, and there will not be stuck phenomenon.
In embodiments of the present invention, described return unit 4 is provided with rectangle containing cavity 42 near the side of protector base 1, the both sides of rectangle containing cavity 42 are guide edge 421, described back-moving spring 3 is placed in this rectangle containing cavity 42, guide edge 421 forms with the gathering sill 11 on base 1 slippage of leading and coordinates, the opposite side of described return unit 4 relative to nose bar 41 is provided with gag lever post 43, described base 1 is provided with limitting casing 12, backstay 43 slippage in limitting casing realizes the spacing movement of return unit 4; Adopt said structure to be in order to return unit 4 moves stable, there will not be stuck phenomenon, can well ensure that return unit 4 is capable of expansion and contraction in addition, do not affect installation and the motion of miscellaneous part.
In embodiments of the present invention, be provided with in the middle part of the side of described return unit 4 relative to the opposite side of rectangle containing cavity 42 and keep out convex tendon 44, this is kept out convex tendon 44 and can form to keep out with the top of dynamic iron core 21 and coordinate, keep out the displacement that convex tendon 44 ensures dynamic iron core 21, in the present embodiment, described first breach 511 is U-shaped breach, and the direction of this opening can set as required, described second breach 512 can be U-shaped breach, also can be through hole.
Disclosed, be the one of preferred embodiment, the change of local or modification and come from technological thought of the present invention and be easy to the person of knowing by inference by the people haveing the knack of this technology such as, does not all take off patent category of the present invention.
Claims (4)
1. the tripping mechanism on a RCD, include base, tripping coil, back-moving spring, return unit and snap close, wherein snap close is rotated by bearing pin and is arranged on base, described return unit is movably arranged on base, one end of back-moving spring acts on base, the other end acts on return unit, it is characterized in that: described snap close is provided with the first swing arm and the second swing arm, described second swing arm is provided with driving lever, described first swing arm is provided with the first breach and the second breach, first breach connects for the dynamic iron core on tripping coil, described return unit is provided with nose bar on the side of the first swing arm, second breach becomes to insert with nose bar and coordinates or be separated cooperation, when dynamic iron core retraction, dynamic iron core drives snap close to rotate to make nose bar to be separated the second breach return unit simultaneously of conflicting on the sidewall of the first swing arm and to be reset spring jack-up, press down return unit to make nose bar insert the second breach to realize the spacing cooperation of the second breach to nose bar.
2. the tripping mechanism on RCD according to claim 1; it is characterized in that: the top of described dynamic iron core is provided with annular groove; described annular groove is fastened in the first breach; described first swing arm is positioned at tripping coil side and is provided with inclined-plane, and this inclined-plane is corresponding with annular groove upper portion.
3. the tripping mechanism on RCD according to claim 1 and 2; it is characterized in that: described return unit is provided with rectangle containing cavity near the side of protector base; the both sides of rectangle containing cavity are guide edge; described back-moving spring is placed in this rectangle containing cavity; guide edge and the gathering sill on base form slippage of leading and coordinate; described return unit is provided with gag lever post relative on the opposite side of nose bar; described base is provided with limitting casing, and backstay slippage in limitting casing realizes the spacing movement of return unit.
4. the tripping mechanism on RCD according to claim 1 and 2; it is characterized in that: be provided with in the middle part of the side of described return unit relative to the opposite side of rectangle containing cavity and keep out convex tendon; this is kept out convex tendon and can form to keep out with the top of dynamic iron core and coordinate; described first breach is U-shaped breach, and described second breach is U-shaped breach or through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510790799.3A CN105244239A (en) | 2015-11-17 | 2015-11-17 | Tripping mechanism on residual current operated protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510790799.3A CN105244239A (en) | 2015-11-17 | 2015-11-17 | Tripping mechanism on residual current operated protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105244239A true CN105244239A (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510790799.3A Pending CN105244239A (en) | 2015-11-17 | 2015-11-17 | Tripping mechanism on residual current operated protective device |
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| CN (1) | CN105244239A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135134A (en) * | 1976-04-14 | 1979-01-16 | Brown, Boveri & Cie Aktiengesellschaft | Electric wiring switch, especially a line protection switch with a fault-current circuit breaker |
| JPH1074444A (en) * | 1991-07-22 | 1998-03-17 | Pdl Holdings Ltd | Switch mechanism |
| CN103456576A (en) * | 2013-09-18 | 2013-12-18 | 德力西电气有限公司 | Tripping mechanism on residual current device |
| CN203562378U (en) * | 2013-11-28 | 2014-04-23 | 德力西电气有限公司 | Action mechanism of novel leakage protection module |
| CN104952671A (en) * | 2015-06-12 | 2015-09-30 | 浙江天正电气股份有限公司 | Direct pulling type residual current operated tripping mechanism |
| CN205081075U (en) * | 2015-11-17 | 2016-03-09 | 浙江米臣电气有限公司 | Tripping mechanism on residual current device |
-
2015
- 2015-11-17 CN CN201510790799.3A patent/CN105244239A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135134A (en) * | 1976-04-14 | 1979-01-16 | Brown, Boveri & Cie Aktiengesellschaft | Electric wiring switch, especially a line protection switch with a fault-current circuit breaker |
| JPH1074444A (en) * | 1991-07-22 | 1998-03-17 | Pdl Holdings Ltd | Switch mechanism |
| CN103456576A (en) * | 2013-09-18 | 2013-12-18 | 德力西电气有限公司 | Tripping mechanism on residual current device |
| CN203562378U (en) * | 2013-11-28 | 2014-04-23 | 德力西电气有限公司 | Action mechanism of novel leakage protection module |
| CN104952671A (en) * | 2015-06-12 | 2015-09-30 | 浙江天正电气股份有限公司 | Direct pulling type residual current operated tripping mechanism |
| CN205081075U (en) * | 2015-11-17 | 2016-03-09 | 浙江米臣电气有限公司 | Tripping mechanism on residual current device |
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Application publication date: 20160113 |