CN201315299Y - Residual-current protecting-operation disengaging device - Google Patents
Residual-current protecting-operation disengaging device Download PDFInfo
- Publication number
- CN201315299Y CN201315299Y CNU2008202382320U CN200820238232U CN201315299Y CN 201315299 Y CN201315299 Y CN 201315299Y CN U2008202382320 U CNU2008202382320 U CN U2008202382320U CN 200820238232 U CN200820238232 U CN 200820238232U CN 201315299 Y CN201315299 Y CN 201315299Y
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- Prior art keywords
- release
- pull bar
- residual current
- current protecting
- residual
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000002633 protecting effect Effects 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
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Abstract
The utility model relates to a residual-current protecting-operation disengaging device, which belongs to the technical field of low-voltage apparatuses, and comprises a creepage release and an electronic release, wherein, the creepage release is installed in a residual-current protecting module whilst the electronic release is installed in a breaker body, and a lock catch is arranged on the electronic release. The residual-current protecting-operation disengaging device has the characteristics as follows: a pull rod is movably arranged in the creepage release; and an iron core used for inserting a loop into the creepage release in a matching manner is fixed at one end of the pull rod, and the other end of the pull rod extends from the creepage release and is matched with the lock catch on the electronic release. The residual-current protecting-operation disengaging device has the advantages as follows: the rod length of the pull rod can be shortened effectively, and the stable reliability of the operation can be improved; the disengaging operation is rapid, and the structure is compact and simple; and the electronic-type breaker body needs not to be altered, so that the cost can be lowered.
Description
Technical field
The utility model relates to a kind of residual current protection operation tripping structure, the electric leakage that is specially adapted in the electronic type band residual current protecting breaker of plastic casing is threaded off, and belongs to the low voltage electrical apparatus technology field.
Background technology
The circuit breaker of band residual current protecting is the most important and the most comprehensive a kind of device for switching of performance in the electric power system, and it is widely used among the various circuit, all be unable to do without the circuit breaker of band residual current protecting in low-voltage electrical apparatus, low-voltage distribution and the automation field.And the circuit breaker with electronic type overcurrent release protection and residual current protecting function is the developing direction of present similar products at home and abroad, and it not only can be used for providing the indirect contact protection to the people; Also can be used to prevent because of apparatus insulated damage, produce earth fault current and the fire hazard that causes; Can also be used to distributing the overload and the short circuit of electric energy and protection circuit and power-supply device simultaneously; Can also be used as the using or the like of not frequent transitions of circuit.
Existing electronic type band residual current protecting breaker of plastic casing; normally on the electronic breaker body, install the residual current protecting module additional; simultaneously leakage tripping device is installed, and electronic trip unit is installed in breaker body inside in the residual current protecting inside modules.When distribution system generation residual current fault, finishing of residual current protecting action is main by following dual mode: a kind of is the draw bar that is directly acted on circuit breaker by the actuating rod of leakage tripping device, makes breaker open operation finish residual current protecting; Another kind is that a transition apparatus is set in breaker body specially; when the residual current testing circuit of circuit breaker detects distribution system generation residual current fault; send the residual current trip signal; after the coil of leakage tripping device receives the residual current trip signal; the actuating rod of leakage tripping device acts on this transition apparatus; transition apparatus remakes the draw bar that is used for circuit breaker, makes breaker open operation finish residual current protecting.The former is because the actuating rod of leakage tripping device directly acts on the draw bar of circuit breaker, and this push rod must be longer, and the span that causes moving is big, unstable properties, unreliable; The latter be owing to need install a transition apparatus additional, complex structure not only, but also need carry out great change to breaker body, responsiveness is slower simultaneously.
Summary of the invention
Problem in view of above-mentioned existence; the purpose of this utility model is to overcome the deficiencies in the prior art; provide a kind of and be swift in motion, stable and reliable for performance, and compact conformation is simple, does not need the residual current protection operation tripping structure that the electronic breaker body is changed greatly simultaneously.
The purpose of this utility model is finished like this; a kind of residual current protection operation tripping structure; comprise: be installed in the leakage tripping device in the residual current protecting module; be installed in the electronic trip unit in the breaker body; described electronic trip unit is provided with snap close; be characterized in: be movably installed with a pull bar in the described leakage tripping device; one end of described pull bar be fixed with one be used for leakage tripping device in the coil iron core of inserting mutually, it is outer and match with snap close on the electronic trip unit that the other end of described pull bar is stuck in described leakage tripping device.
In an embodiment of the present utility model, the other end end of described pull bar is formed with one and is used for the crotch that is interlocked with described snap close.
In another embodiment of the present utility model, the other end end of described pull bar is formed with one and is used for for the interspersed hole of described snap close.
The utility model directly acts on snap close on the electronic trip unit by the pull bar of leakage tripping device, is acted on the draw bar of circuit breaker after the snap close release again by the push rod that matches with snap close on the electronic trip unit, makes circuit breaker trip.This mode that matches with snap close on the electronic trip unit by the pull bar of leakage tripping device is finished the residual current protecting action, and one of advantage that has, the bar that can effectively shorten pull bar are long, increase the reliability of threading off and moving; Advantage two, utilize electronic trip unit inner original release member---snap close and the tripping operation that realizes circuit breaker cooperating of pull bar, not only dropout is swift in motion, and compact conformation is simple; Advantage three, need not carry out big change to the electronic breaker body again, thereby can save cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Fig. 3 is an example structure sketch of leakage tripping device of the present utility model.
Fig. 4 is the structural representation of Fig. 3 after removing the leakage tripping device case.
Fig. 5 is the structural representation of pull bar among Fig. 4.
Fig. 6 is another example structure sketch of leakage tripping device of the present utility model.
Fig. 7 is the structural representation of snap close, push rod in the electronic trip unit of the present utility model.
Embodiment
By the description of applicant, will help to understand the utility model more, and good effect of the present utility model is embodied more, but embodiment should not be considered as the restriction to some extent to the utility model scheme embodiment.
See also Fig. 3 and in conjunction with Fig. 4, Fig. 5, the utility model has provided first kind of execution mode of the pull bar 41 of leakage tripping device 4, be fixed with an iron core 42, be formed with a crotch 411 in the other end end of pull bar 41 in an end end of described pull bar 41.Pull bar 41 can be arranged in the leakage tripping device 4, wherein front and back versatilely: an end of pull bar 41 is by in the coil 43 in the iron core 42 insertion leakage tripping devices 4, and the other end of pull bar 41 is stuck in outside the described leakage tripping device 4.
See also Fig. 6, the utility model has provided the another kind of execution mode of the pull bar 41 of leakage tripping device 4, different with above-mentioned first kind of execution mode is: offer a hole 412 in the other end end of pull bar 41, pull bar 41 is set in by hole 412 and realizes on the snap close 31 and the cooperating of snap close 31.
Need to prove: pull bar 41 and the fit system of snap close 31 are not subjected to the restriction of above-mentioned two kinds of execution modes, the other end end of pull bar 41 can also be connected with snap close 31 usefulness cotton ropes or with above-mentioned both realize cooperation or the like by the mode of inlaying.
See also Fig. 7, what this figure disclosed is snap close 31 in the electronic trip unit 3, the structural representation of push rod 32, because snap close 31, push rod 32 is as electronic trip unit 3 inner original release member, belong to the free and public technology that those skilled in the art are familiar with, therefore assembled relation between the two here repeats no more, only operation principle is done simple the description, when snap close 31 with push rod 32 during in locked state, the spring 33 that is located in the push rod 32 is in the compressed energy-storage state, rotate and under the effect of external force, make counter clockwise direction when snap close 31, when forcing snap close 31 to break away from cooperating of push rod 32 release, push rod 32 under the effect of spring 33 elastic force to draw bar 5 directions of breaker body 1 inside move (seeing also Fig. 2).
See also Fig. 1; Fig. 2 and in conjunction with Fig. 3; Fig. 4; Fig. 5; Fig. 7; leakage tripping device 4 is installed in the residual current protecting module 2; electronic trip unit 3 is installed in the breaker body 1 simultaneously; when being installed to residual current protecting module 2 on the breaker body 1; the crotch 411 of pull bar 41 ends of leakage tripping device 4 is interlocked with the snap close 31 of electronic trip unit 3; when the residual current testing circuit of circuit breaker detects distribution system generation residual current fault; send the residual current trip signal; after the coil 43 of leakage tripping device 4 receives the residual current trip signal; coil 43 is with pull-core 42; driving the pull bar of fixing with iron core 42 41 moves to leakage tripping device 4 directions; pull bar 41 hooks the direction motion of the snap close 31 of electronic trip unit 3 to leakage tripping device 4 by the crotch 411 of its end simultaneously; make snap close 31 releases until pull bar 41 pulling snap closes 31; after snap close 31 releases; push rod 32 is the draw bar 5 directions motion in breaker body 1 under spring 33 effects; promote draw bar 5 until push rod 32; make circuit breaker trip, finish whole residual current protecting course of action.
Claims (3)
1; a kind of residual current protection operation tripping structure; comprise: be installed in the leakage tripping device (4) in the residual current protecting module (2); be installed in the electronic trip unit (3) in the breaker body (1); described electronic trip unit (3) is provided with snap close (31); it is characterized in that being movably installed with in the described leakage tripping device (4) pull bar (41); one end of described pull bar (41) be fixed with one be used for leakage tripping device (4) in the coil iron core of inserting (42) mutually, it is outer and match with snap close (31) on the electronic trip unit (3) that the other end of described pull bar (41) is stuck in described leakage tripping device (4).
2, residual current protection operation tripping structure according to claim 1, the other end end that it is characterized in that described pull bar (41) are formed with one and are used for the crotch (411) that is interlocked with described snap close (31).
3, residual current protection operation tripping structure according to claim 1, the other end end that it is characterized in that described pull bar (41) are formed with one and are used for the hole (412) of interting for described snap close (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202382320U CN201315299Y (en) | 2008-12-18 | 2008-12-18 | Residual-current protecting-operation disengaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202382320U CN201315299Y (en) | 2008-12-18 | 2008-12-18 | Residual-current protecting-operation disengaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201315299Y true CN201315299Y (en) | 2009-09-23 |
Family
ID=41127098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202382320U Expired - Lifetime CN201315299Y (en) | 2008-12-18 | 2008-12-18 | Residual-current protecting-operation disengaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201315299Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243948A (en) * | 2010-05-13 | 2011-11-16 | 上海电器股份有限公司人民电器厂 | Manual and automatic combined residual current tripping device |
-
2008
- 2008-12-18 CN CNU2008202382320U patent/CN201315299Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243948A (en) * | 2010-05-13 | 2011-11-16 | 上海电器股份有限公司人民电器厂 | Manual and automatic combined residual current tripping device |
| CN102243948B (en) * | 2010-05-13 | 2014-01-15 | 上海电器股份有限公司人民电器厂 | Manual and automatic combined residual current tripping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090923 |