CN204558406U - A kind of L-type post rod type current interruption protector - Google Patents
A kind of L-type post rod type current interruption protector Download PDFInfo
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- CN204558406U CN204558406U CN201520256802.9U CN201520256802U CN204558406U CN 204558406 U CN204558406 U CN 204558406U CN 201520256802 U CN201520256802 U CN 201520256802U CN 204558406 U CN204558406 U CN 204558406U
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- 230000001012 protector Effects 0.000 title claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 77
- 230000009979 protective mechanism Effects 0.000 claims abstract description 27
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims abstract description 3
- 230000004224 protection Effects 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241001274660 Modulus Species 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a kind of L-type post rod type current interruption protector, comprises earth leakage protective mechanism and short current protective mechanism; Have the drain wire ring framework of the first guide hole in described earth leakage protective mechanism comprises, the electric leakage coil be sleeved on outside drain wire ring framework, drain wire coil support, electric leakage spring and one electric leakage iron core, described electric leakage iron core and the first guide hole are slidably matched, the bearing surface of described electric leakage iron core is provided with counterbore, one end of electric leakage spring is connected in counterbore, and the other end is connected with drain wire coil support; The short circuit iron core establish the short circuit skeleton of the tubular construction of the second guide hole in described short current protective mechanism comprises, being slidably matched with the second guide hole, the static iron core being fixedly mounted on the second guide hole outer end; the push rod be slidably installed with the slip through hole of short circuit iron core and the support through holes of static iron core respectively and short circuit support and short-circuit spring; earth leakage protective parts together with short-circuit protection component integration, effectively can be reduced the volume of product by this device simultaneously.
Description
Technical field
The utility model relates to low-voltage circuit breaker field, is specifically related to a kind of L-type post rod type current interruption protector.
Background technology
With the residual current action breaker of overcurrent protection, the excess current protective function of existing miniature circuit breaker, has again the defencive function to leakage current, this year along with the application of RCBO more and more general, the miniaturization of product also becomes a developing direction.But; current electronic type RCBO; the miniature RCBO that particularly rated current is no more than 40A, rated voltage is no more than 240V; two cover magnetictrips need to take very large space; therefore the width of two moduluses is mostly adopted; short-circuit protection move release wink and residual current trip is integrated into a bifunctional magnetictrip, being a modulus by the reduced width of RCBO.But, existing have the difunctional magnetictrip moving dropout and residual current trip action short circuit wink simultaneously, the problem that operating voltage is too high and axial dimension is excessive of ubiquity electric leakage coil, and cause the too high reason of the operating voltage of electric leakage coil to be to move the elastic force that trip action all must overcome same Compress Spring in residual current trip action and short circuit wink, under the restriction of this structure, the operating voltage of electric leakage coil need meet the requirement moving drop-away current threshold value and short circuit wink current threshold easily short circuit wink, namely the operating voltage of coil of leaking electricity can not independently set, and these two threshold values are relevant to the rated current In of circuit breaker.Generally, 3-5 times that drop-away current threshold value is the rated current In of circuit breaker is moved short circuit wink, in order to ensure misoperation not to occur, what need the elastic force of Compress Spring to design is very large, tie down by this, the operating voltage of electric leakage coil has to bring up to very large numerical value, arranges and reaches several kilovolts.And, the too high defect also causing high-voltage impact of operating voltage of electric leakage coil, declined and production cost raising in the useful life of electric leakage coil and control circuit thereof, simultaneously, high voltage also brings the infringement to other parts, need to increase the electric leakage size of coil and safe insulation distance, even also need the components and parts such as the interpole coil of additional antagonism impacting with high pressure, thus cause the complicated of product structure and cannot miniaturization further.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of L-type post rod type current interruption protector, by earth leakage protective parts together with short-circuit protection component integration, effectively can reduce the volume of product simultaneously.
The utility model adopts following technical scheme, provides a kind of L-type post rod type current interruption protector, comprises earth leakage protective mechanism and short current protective mechanism; Have the drain wire ring framework of the first guide hole in described earth leakage protective mechanism comprises, the electric leakage coil be sleeved on outside drain wire ring framework, drain wire coil support, electric leakage spring and one electric leakage iron core, described electric leakage iron core and the first guide hole are slidably matched, the bearing surface of described electric leakage iron core is provided with counterbore, one end of electric leakage spring is connected in counterbore, and the other end is connected with drain wire coil support; The short circuit iron core establish the short circuit skeleton of the tubular construction of the second guide hole in described short current protective mechanism comprises, being slidably matched with the second guide hole, the static iron core being fixedly mounted on the second guide hole outer end, the push rod be slidably installed with the slip through hole of short circuit iron core and the support through holes of static iron core respectively and short circuit support and short-circuit spring; Described short circuit iron core is yoke, and electric leakage iron core is armature; The outer bearing surface of short circuit iron core abuts with the outside wall surface of short circuit skeleton and coordinates, and interior bearing surface abuts with the shaft shoulder end face of push rod and coordinates; Electric leakage iron core is provided with groove, and described push rod is " L " type structure, and one end of push rod is connected in groove.
Wherein, described drain wire ring framework is fixedly connected with drain wire coil support.
Wherein, the internal face of described drain wire coil support arranges lug, the second termination point casing of electric leakage spring is connected on lug.
The beneficial effects of the utility model are:
Described L-type post rod type current interruption protector adopts electric leakage spring and short-circuit spring to provide two reaction spring structures of elastic force respectively to electric leakage iron core and short circuit iron core, electric leakage iron core and short circuit iron core act on the structure of push rod respectively, make electric leakage iron core only need very little power can promote push rod and produce trip action, the operating voltage of electric leakage coil is significantly reduced; Described push rod is set to " L " type structure one end and is connected in groove, and earth leakage protective mechanism and short current protective mechanism being axially arranged side by side, can being shortened the entire length of current interruption protector, reducing the overall volume of current interruption protector; Push rod direct connection with the axle core of electric leakage iron core increases contact area, can be more steadily balanced in the transmission process of mechanical force, and decreases the loss in power transmission process, and operating efficiency is higher, more accurate.
Accompanying drawing explanation
Figure 1 shows that the cross-sectional view of short circuit current protector of the present utility model.
Label declaration:
Electric leakage iron core 1 groove 101 drain wire ring framework 2 first guide hole 201
Electric leakage coil 3 drain wire coil support 4 lug 401 leaks electricity spring 5 counterbore 6 short circuit iron core 7 push rod 8 static iron core 9 short circuit skeleton 10 short-circuited coil 11 short-circuit spring 12 short circuit support 13
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Consult Fig. 1, the utility model provides a kind of L-type post rod type current interruption protector, comprises earth leakage protective mechanism and short current protective mechanism; Described earth leakage protective mechanism and short current protective mechanism are axially arranged side by side, and the outer surface of the two is interconnected and fixed.There is the drain wire ring framework 2 of the first guide hole 201 in described earth leakage protective mechanism comprises, be sleeved on leak electricity iron core 1 and the first guide hole 201 of electric leakage coil 3 outside drain wire ring framework 2 and drain wire coil support 4, and be slidably matched; Also comprise an electric leakage spring, the bearing surface of described electric leakage iron core is provided with counterbore, and one end of electric leakage spring is connected in counterbore, and the other end is connected with drain wire coil support.
Described short current protective mechanism comprises short circuit skeleton 10, short circuit skeleton 10 establishes the columnar structured of the second guide hole in being, one short circuit iron core 7 and the second guide hole are slidably matched, be fixedly mounted on the static iron core 9 of the second guide hole outer end, the push rod 8 be slidably installed with the slip through hole of short circuit iron core 7 and the support through holes of static iron core 9 respectively and short circuit support 13 and short-circuit spring 12; The inner of the short circuit skeleton 10 of short current protective mechanism is fixedly connected with the inner support wall of short circuit support 13; the external end head of static iron core 9 is fixedly connected with the outer support wall of short circuit support 13; one end of short-circuit spring 12 is connected with short circuit iron core 7; the other end is connected with static iron core 9; the interior bearing surface of short circuit iron core 7 abuts with the shaft shoulder end face of push rod 8 and coordinates; the outer bearing surface of short circuit iron core 7 abuts with the outside wall surface of short circuit skeleton 10 and coordinates, and two terminations of push rod 8 are stretched out from the two ends of short current protective mechanism respectively.Above-mentioned short circuit iron core 7 is yoke, and electric leakage iron core 1 is armature, and electric leakage iron core is provided with groove 101, and described push rod is " L " type structure, and one end of push rod is connected in groove 101.
When the coil 3 that leaks electricity produces magnetic field, electric leakage iron core 1 overcomes electric leakage spring 5 and moves forward, drive push rod 8 axial motion in gathering sill, the mobilizable short circuit iron core 7 that is sheathed on of push rod 8 is with static iron core 9, push rod 8 motion axially, not by the impact of other external force, makes electric leakage iron core 1 need very little power that push rod 8 activity just can be driven to make mechanical unlocking.When short-circuited coil 11 produces magnetic field, equidirectional magnetization static iron core 9 and short circuit iron core 7, make short circuit iron core 7 travel forward, and short circuit iron core 7 promotes push rod 8 by the step in the middle of push rod 8 and moves, and breaker mechanism is threaded off.After push rod 8 ejects, can when product be closed again, returned by the miscellaneous part top of operating mechanism, because the guide through hole that hole is formed of short circuit iron core 7 is longer, push rod 8 can not come off.Push rod 8 is in free state in the axial direction; earth leakage protective mechanism and short current protective mechanism share a push rod 8; and " L " type is arranged to by push rod 8; one end head is connected in the groove 101 on electric leakage iron core; and it is middle axially movable to utilize the gathering sill of drain wire ring framework side to guide it to carry out, and makes the activity of push rod misplace.Secondly, use the push rod of " L " type earth leakage protective mechanism and short current protective mechanism can be set up in parallel, substantially reduce the length of whole current interruption protector, facilitate the demand of layout, and the overall volume of breaker protector can be reduced.In addition, one end of push rod 8 is connected to the axle center of electric leakage iron core 1, and the driving force of electric leakage iron core 1 pair of push rod 8 can be more balanced, and power transmission efficiency is higher, more precisely.
The operation principle of breaker protector will be described in following:
Under the normal "on" position of breaker protector; the electric current flow through in trip coil is less than the threshold value of short circuit current; the magnetic force of magnetic field to short circuit iron core 7 that short-circuited coil 11 produces is less than the elastic force of short-circuit spring 12; short circuit iron core 7 is under the elastic force effect of short-circuit spring 12; its bearing surface abuts with the outside wall surface of short circuit skeleton; make short circuit iron core 7 remain on the settling position of being failure to actuate, push rod 8 is stabilized in reset mode under the restriction of snap close.
When the electric current flowing through short-circuited coil 11 is greater than the threshold value of short circuit current, under the magnetic drive that short circuit iron core 7 produces at short-circuited coil 11, the elastic force overcoming short-circuit spring 12 moves to static iron core 9 direction, and the shaft shoulder end face of push rod 8 is promoted by bearing surface on it, push rod 8 is made to drive connected short current protective mechanism to thread off, and make circuit breaker trip disconnect main circuit, short-circuited coil 11 loses the magnetic force driving short circuit iron core 7, short circuit iron core 7 is moved to the left under the elastic force effect of short-circuit spring 12, until short circuit iron core abuts with the outside wall surface of short circuit skeleton, under the reset force of miscellaneous part orders about, make push rod 8 be moved to the left be repositioned to reset mode.
When there is residual current fault, residual current control circuit loads operating voltage to electric leakage coil 3, excitation electric leakage coil 3 produces magnetic field, under the effect in this magnetic field, electric leakage iron core 1 overcomes the axis of elasticity of electric leakage spring 5 to moving right, electric leakage spring 5 promotes push rod 8 and moves right, make push rod 8 drive the touching end on it move right drive snap close move right cause breaker protector trip disconnect main circuit, electric leakage coil 3 is made to lose the magnetic force driving iron core, electric leakage iron core 1 is moved to the left under the elastic force effect of electric leakage spring 5, until spindle-type cap contacts with the confined planes of drain wire ring framework 2, order about snap close at the reset force of outside miscellaneous part to be moved to the left push rod 8 is moved to the left until reset mode.
In the above-described embodiment, described drain wire ring framework 2 is fixedly connected with drain wire coil support 4.The sliding scale of electric leakage iron core 1 can be limited after the two being fixedly connected with; improve the reliability of installing; prevent relatively rotating between drain wire ring framework 2 and drain wire coil support 4, and this mounting structure can optimize the overall structure of breaker protector more, forms stable cooperation.
In order to improve the reliability of installation, realize being fixedly connected with between drain wire ring framework 2 and drain wire coil support 4, and the installation location of electric leakage iron core 1, electric leakage spring 5 can be guaranteed, the internal face of described drain wire coil support 4 arranges lug 401, and the second termination point casing of electric leakage spring 5 is connected on lug 401.
The embodiment of the utility model breaker protector is only described in upper; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. a L-type post rod type current interruption protector, is characterized in that: comprise earth leakage protective mechanism and short current protective mechanism; Have the drain wire ring framework of the first guide hole in described earth leakage protective mechanism comprises, the electric leakage coil be sleeved on outside drain wire ring framework, drain wire coil support, electric leakage spring and one electric leakage iron core, described electric leakage iron core and the first guide hole are slidably matched, the bearing surface of described electric leakage iron core is provided with counterbore, one end of electric leakage spring is connected in counterbore, and the other end is connected with drain wire coil support; The short circuit iron core establish the short circuit skeleton of the tubular construction of the second guide hole in described short current protective mechanism comprises, being slidably matched with the second guide hole, the static iron core being fixedly mounted on the second guide hole outer end, the push rod be slidably installed with the slip through hole of short circuit iron core and the support through holes of static iron core respectively and short circuit support and short-circuit spring; Described short circuit iron core is yoke, and electric leakage iron core is armature; The outer bearing surface of short circuit iron core abuts with the outside wall surface of short circuit skeleton and coordinates, and interior bearing surface abuts with the shaft shoulder end face of push rod and coordinates; Electric leakage iron core is provided with groove, and described push rod is " L " type structure, and one end of push rod is connected in groove.
2. L-type post rod type current interruption protector according to claim 1, is characterized in that: described drain wire ring framework is fixedly connected with drain wire coil support.
3. L-type post rod type current interruption protector according to claim 1, is characterized in that: the internal face of described drain wire coil support arranges lug, and the second termination point casing of electric leakage spring is connected on lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520256802.9U CN204558406U (en) | 2015-04-24 | 2015-04-24 | A kind of L-type post rod type current interruption protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520256802.9U CN204558406U (en) | 2015-04-24 | 2015-04-24 | A kind of L-type post rod type current interruption protector |
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| Publication Number | Publication Date |
|---|---|
| CN204558406U true CN204558406U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520256802.9U Active CN204558406U (en) | 2015-04-24 | 2015-04-24 | A kind of L-type post rod type current interruption protector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110494947A (en) * | 2017-03-24 | 2019-11-22 | 西门子股份公司 | Breaker |
-
2015
- 2015-04-24 CN CN201520256802.9U patent/CN204558406U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110494947A (en) * | 2017-03-24 | 2019-11-22 | 西门子股份公司 | Breaker |
| US11133142B2 (en) | 2017-03-24 | 2021-09-28 | Siemens Aktiengesellschaft | Power switch |
| CN110494947B (en) * | 2017-03-24 | 2021-10-29 | 西门子股份公司 | Circuit breaker |
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