CN204441226U - A kind of residual current circuit breaker and tripping mechanism thereof - Google Patents
A kind of residual current circuit breaker and tripping mechanism thereof Download PDFInfo
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- CN204441226U CN204441226U CN201520175098.4U CN201520175098U CN204441226U CN 204441226 U CN204441226 U CN 204441226U CN 201520175098 U CN201520175098 U CN 201520175098U CN 204441226 U CN204441226 U CN 204441226U
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Abstract
The utility model discloses a kind of residual current circuit breaker and tripping mechanism thereof, described tripping mechanism comprise connecting rod, pull bar, for responding to tripping coil and the dropout part of leakage current, it is inner that described pull bar one end is arranged at described tripping coil, the other end is connected with described dropout part, described dropout part is provided with through hole, described connecting rod one end is connected with electric current major loop, and the other end is provided with bend, and described bend is arranged in described through hole.The tripping mechanism of residual current circuit breaker disclosed in the utility model, when circuit produces enough large leakage current, tripping coil obtains electric, due to electromagnetic induction effect, pull bar meeting fast movement, connected dropout part is also synchronized with the movement simultaneously; Because one end of connecting rod is provided with bend, this bend is arranged in the through hole of dropout part, also can be synchronized with the movement when dropout part moves; thus the sidewall of the through hole of dropout part is contacted with the bend of connecting rod; pull connecting rod, and then circuit breaker operation mechanism is disconnected, complete power-off protection action.
Description
Technical field
The utility model relates to electric power safety facility technology field, particularly a kind of tripping mechanism of residual current circuit breaker.The utility model also relates to a kind of residual current circuit breaker comprising above-mentioned tripping mechanism.
Background technology
Along with the development of China Electronics's electrical technology, electric power facility miscellaneous is popularized already.Electric power is a double-edged sword, while making tremendous contribution for human society, also likely spawns disaster accidentally, and for this reason, domestic safety power consumption equipment has been installed in huge numbers of families.
For residual current circuit breaker; residual current circuit breaker is that a kind of leakage current in circuit can the switch of auto-action when exceeding predetermined value; be mainly used in when the person occurring and getting an electric shock or leak electricity; can be cut off the electricity supply rapidly by tripping mechanism action; guarantee personal safety; prevent electric shock accidents, some earth leakage protective devices also have overload, short-circuit protection function concurrently.
At present, what the tripping mechanism of residual current circuit breaker extensively adopted is mechanical action formula, by the trip action of the tripping mechanism that has been converted between the kinetic energy of elastic component and elastic potential energy.But tripping mechanism of the prior art, because the Conversion of Energy of elastic component needs certain hour, and there is mechanically operated error, therefore reliability is lower, and the trip speed of tripping mechanism is also slower simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of tripping mechanism of residual current circuit breaker, and can promptly make tripping mechanism carry out action, reliability is high.Another object of the present utility model is to provide a kind of residual current circuit breaker comprising above-mentioned tripping mechanism.
For solving the problems of the technologies described above, the utility model provides a kind of tripping mechanism of residual current circuit breaker, comprise connecting rod, one end of described connecting rod is connected with circuit breaker operation mechanism, also comprises pull bar, for responding to tripping coil and the dropout part of leakage current, it is inner that described pull bar one end is arranged at described tripping coil, the other end is connected with described dropout part, described dropout part is provided with through hole, and the other end of described connecting rod is provided with bend, and described bend is arranged in described through hole.
Preferably, the end that described pull bar is connected with described dropout part is provided with connector, and described dropout part is provided with clamping slot, described connector to be arranged in described clamping slot and to closely cooperate with it.
Preferably, described connector is cubic, and described clamping slot is T-shaped groove.
Preferably, reinforcement is provided with on the sidewall of described bend above described dropout part.
Preferably, resilient coating is provided with on the sidewall of described bend above described dropout part.
The utility model also provides a kind of residual current circuit breaker, and comprise housing and be arranged at the tripping mechanism in described housing, wherein, described tripping mechanism is the tripping mechanism described in above-mentioned any one.
The tripping mechanism of residual current circuit breaker provided by the utility model, mainly comprises connecting rod, pull bar, tripping coil and dropout part.Wherein, tripping coil is that a kind of electromagnetic induction is arranged, and when circuit produces enough large leakage current, tripping coil obtains electric, can produce suction or pulling force in coil, thus iron core is moved.Pull bar is then tripping coil " iron core ", and its one end is arranged on the inside of tripping coil, and the other end is connected with dropout part.In the utility model, pull bar is active movement parts, and part of threading off is then passive movement parts, is synchronized with the movement, and is provided with through hole thereon when being subject to pulling force (or thrust) of pull bar.Connecting rod is the most terminal ring of tripping mechanism action chain, and its one end is connected with circuit breaker operation mechanism, and is provided with bend on an opposite end, and this bend is arranged in the through hole of dropout part.The tripping mechanism of residual current circuit breaker provided by the utility model, when circuit produces enough large leakage current, tripping coil obtains electric, produces suction or pulling force therein.For suction, the pull bar set within it also is synchronized with the movement at once, mobile toward tripping coil inside.Meanwhile, because the other end of pull bar is connected with dropout part, therefore dropout part is driven synchronizing moving by pull bar.Then, when dropout part moves to a certain degree, be arranged on the connecting rod in its through hole bend will with the sidewall contact of through hole, now hook is tightly threaded off part by bend.When dropout part continues mobile afterwards, then under the counter-force effect of bend, pull link motion, and then circuit breaker operation mechanism is disconnected.So far, the reaction release of the tripping mechanism of residual current circuit breaker.In sum; the tripping mechanism of residual current circuit breaker provided by the utility model; (or promotion) pull bar is pulled by the electromagnetic induction effect of tripping coil; continue dropout part is synchronized with the movement, then hook and be close to bar, then pull connecting rod; circuit breaker operation mechanism is finally made to disconnect; cut off circuit, complete rapidly earth leakage protective action, and reliability is higher.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the overall structure schematic diagram of the first embodiment provided by the utility model;
Fig. 2 is the overall structure schematic diagram of the second embodiment provided by the utility model.
Wherein, in Fig. 1:
Connecting rod-1, bend-101, pull bar-2, connector-201, tripping coil-3, dropout part-4, through hole-401, clamping slot-402.
In Fig. 2:
Reinforcement-5, resilient coating-6.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, Fig. 1 is the overall structure schematic diagram of the first embodiment provided by the utility model.
In the first embodiment provided by the utility model, the tripping mechanism of residual current circuit breaker mainly comprises connecting rod 1, pull bar 2, tripping coil 3 and dropout part 4.
Wherein, the positive action parts of pull bar 2 residual current circuit breaker tripping mechanism, its one end is arranged on the inside of tripping coil 3, and the other end is connected with dropout part 4.
Tripping coil 3 is the electromagnetic induction parts in residual current circuit breaker, and it can capture leakage current instantaneously and produce galvanomagnetic effect (namely tripping coil 3 obtains electric), produces pulling force (or thrust) therein.
Dropout part 4 is passive action components of residual current circuit breaker tripping mechanism, and its one end is connected with pull bar 2, so synchronously can move when pull bar 2 action.In addition, dropout part 4 is provided with through hole 401, this through hole 401 not matches with axial workpiece, but for providing the free activity space of connecting rod 1.
Connecting rod 1 is last ring that residual current circuit breaker tripping mechanism performs earth leakage protective action; its one end is connected with circuit breaker operation mechanism (action and circuit able to turn on or off by this mechanism); and be provided with bend 101 on the other end thereof; this bend 101 is arranged in the through hole 401 of dropout part 4; so, can when dropout part 4 carry out relative motion with connecting rod 1, bend 101 just can hook the sidewall of through hole 401; thus under the pulling function of pull bar 2, pull connecting rod 1.
In sum, the tripping mechanism of residual current circuit breaker provided by the utility model, first because tripping coil 3 can sense leakage current immediately, therefore once occur leakage current, tripping coil 3 just can capture at once and produce electromagnetic induction phenomenon, produces suction or pulling force therein, this sentences suction is example, when the leakage current that circuit produces is enough large, the pull bar 2 so set within it will be attracted at once, and the inside rapidly toward tripping coil 3 is moved.Meanwhile, because the other end of pull bar 2 is connected with dropout part 4, therefore pull bar 2 huge moment momentum effect under, dropout part 4 also can be followed pull bar 2 and synchronously be moved.In like manner, the through hole 401 be arranged on dropout part 4 also moves simultaneously, bend 101 due to one end of connecting rod 1 is arranged in through hole 401, therefore when dropout part 4 moves to a certain degree, through hole 401 will clash into bend 101 phase on connecting rod 1, then due to the architectural characteristic of bend 101, the sidewall of through hole 401 will tightly be hooked.Afterwards, under the drive of pull bar 2, dropout part 4 continues motion, drives the bend 101 tightly hooking through hole 401 to move, has finally pulled connecting rod 1, and then circuit breaker operation mechanism has been disconnected and cuts off circuit.So far, the power-off protection release of residual current circuit breaker.
Therefore; the tripping mechanism of residual current circuit breaker provided by the utility model; can when there is electric leakage accident; immediately capture leakage current by tripping coil 3 and utilize the effect of electromagnetic induction; drive pull bar 2 to drive dropout part 4 fast movement, under the effect of finally tightly hooking at through hole 401 and the bend 101 of connecting rod 1, pull connecting rod 1; and then circuit breaker operation mechanism is disconnected, complete the earth leakage protective of residual current circuit breaker.Because electromagnetic induction effect is instant, therefore the tripping mechanism of residual current circuit breaker provided by the utility model is swift in motion, and circuitry cuts action is timely; Simultaneously owing to having cast out mechanical reaction action, electromagnetic induction degree reliable for effect is relatively high.
The present embodiment also provides a kind of residual current circuit breaker, and comprise housing and be arranged on the tripping mechanism in this housing, wherein, this tripping mechanism is identical with foregoing teachings, repeats no more herein.
Please refer to Fig. 2, Fig. 2 is the overall structure schematic diagram of the second embodiment provided by the utility model.
The second embodiment provided by the utility model, the basis of the first embodiment is improved, is specially: set up reinforcement 5 and resilient coating 6.The remainder of the tripping mechanism of the residual current circuit breaker that the present embodiment provides is identical with foregoing teachings, repeats no more herein.
Known from the action effect the first embodiment is analyzed, pull bar 2 is after pulling dropout part 4, and the bend 101 of connecting rod 1 will collide with through hole 401, and tightly hooks mutually.Therefore, after the tripping mechanism of residual current circuit breaker uses for a long time, the reliability of the connection between bend 101 and through hole 401 may decline.
For this, the present embodiment is provided with reinforcement 5 on dropout part 4, and this reinforcement 5 is specifically arranged on the sidewall of dropout part 4 above to bend 101.So, due to the existence of reinforcement 5, the intensity of the sidewall of through hole 401 and thickness all can be greatly enhanced, then when colliding with bend 101, are unlikely to produce mechanical damage, ensure to connect reliability.
In addition, for same consideration, the present embodiment is also provided with resilient coating 6 between through hole 401 and bend 101.The concrete setting position of this resilient coating 6 is on the sidewall of dropout part 4 above to bend 101.Setting like this, when through hole 401 collides with bend 101 again, its huge moment momentum will have a big chunk to be buffered layer to absorb.Therefore, after being provided with resilient coating 6, on the basis ensureing the compact siro spinning technology relation between bend 101 and through hole 401, reducing both collision dynamics, slow down mechanical wear, improve reliability and the useful life of the tripping mechanism of residual current circuit breaker.
The present embodiment also provides a kind of residual current circuit breaker, and comprise housing and be arranged on the tripping mechanism in this housing, wherein, this tripping mechanism is identical with foregoing teachings, repeats no more herein.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. the tripping mechanism of a residual current circuit breaker, comprise connecting rod (1), one end of described connecting rod (1) is connected with circuit breaker operation mechanism, it is characterized in that, also comprise pull bar (2), for responding to tripping coil (3) and the dropout part (4) of leakage current, it is inner that described pull bar (2) one end is arranged at described tripping coil (3), the other end is connected with described dropout part (4), described dropout part (4) is provided with through hole (401), the other end of described connecting rod (1) is provided with bend (101), and described bend (101) is arranged in described through hole (401).
2. tripping mechanism according to claim 1, it is characterized in that, the upper end be connected with described dropout part (4) is provided with connector (201) with described pull bar (2), and described dropout part (4) is provided with clamping slot (402), described connector (201) to be arranged in described clamping slot (402) and to closely cooperate with it.
3. tripping mechanism according to claim 2, is characterized in that, described connector (201) is in cubic, and described clamping slot (402) is T-shaped groove.
4. tripping mechanism according to claim 1, is characterized in that, the sidewall of described dropout part (4) above to described bend (101) is provided with reinforcement (5).
5. tripping mechanism according to claim 1, is characterized in that, the sidewall of described dropout part (4) above to described bend (101) is provided with resilient coating (6).
6. a residual current circuit breaker, comprise housing and be arranged at the tripping mechanism in described housing, it is characterized in that, described tripping mechanism is the tripping mechanism described in any one of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520175098.4U CN204441226U (en) | 2015-03-26 | 2015-03-26 | A kind of residual current circuit breaker and tripping mechanism thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520175098.4U CN204441226U (en) | 2015-03-26 | 2015-03-26 | A kind of residual current circuit breaker and tripping mechanism thereof |
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| CN204441226U true CN204441226U (en) | 2015-07-01 |
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| CN201520175098.4U Active CN204441226U (en) | 2015-03-26 | 2015-03-26 | A kind of residual current circuit breaker and tripping mechanism thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701108A (en) * | 2015-03-26 | 2015-06-10 | 杭州泰姆电气有限公司 | Residual-current circuit breaker and releasing mechanism therefore |
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2015
- 2015-03-26 CN CN201520175098.4U patent/CN204441226U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701108A (en) * | 2015-03-26 | 2015-06-10 | 杭州泰姆电气有限公司 | Residual-current circuit breaker and releasing mechanism therefore |
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