CN105990073A - Overload alarm non-tripping device of molded case circuit breaker - Google Patents
Overload alarm non-tripping device of molded case circuit breaker Download PDFInfo
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- CN105990073A CN105990073A CN201510079277.2A CN201510079277A CN105990073A CN 105990073 A CN105990073 A CN 105990073A CN 201510079277 A CN201510079277 A CN 201510079277A CN 105990073 A CN105990073 A CN 105990073A
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- draw bar
- overload
- alarm
- circuit protection
- breaker
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Abstract
An overload alarm non-tripping device of a molded case circuit breaker comprises a transmission mechanism support (1); a supporting shaft (2) is installed on the transmission mechanism support (1); a short circuit protection draw bar (3) and an overload alarm draw bar (4) both sleeve the supporting shaft (2) and can rotate around the supporting shaft (2) without interfering with each other; the overload alarm draw bar (4) is linked with adjustable touch parts (5) and can be driven by the adjustable touch parts (5) to rotate around the supporting shaft (2); alarm signal collection output device (6) can be triggered during the rotation process of the overload alarm draw bar (4); the adjustable touch parts (5) are installed on bimetallic strips (7); the bimetallic strips (7) are respectively installed to heating elements (8); and the bimetallic strips (7) can be deformed due to heating of the heating elements (8) and therefore drive the adjustable touch parts (5) to drive the overload alarm draw bar (4) to rotate. The overload alarm draw bar is installed in the short circuit protection draw bar, installation space of one draw bar is saved, so that the structure space is more compact, structure demands of a small-sized molded case circuit breaker can be satisfied, and the overload alarm non-tripping device is simple and easy to assemble.
Description
Technical field
The invention belongs to low voltage equipment technical field, the most just relate to a kind of breaker of plastic casing overload
Alarm device, especially relates to the not trip gear of breaker of plastic casing apparatus for warning overload.
Background technology
Breaker of plastic casing is a kind of low voltage circuit protection device, has overload, short circuit and low-voltage protection function.
Chopper of a great variety, wherein breaker of plastic casing is the more commonly used, and shell uses plastic insulation, be used for every
Between conductor and ground metal portion.When electric current exceedes setting value, breaker of plastic casing can be automatic
Cut off electric current, play the effect of protection load.But chopper is in some special applications field in a particular application
Close, it is desirable to provide a kind of special defencive function, i.e. when distribution line is in overload, chopper sends report
Alert signal but the function of circuit breaker tripping will not be made, in such as fire-fighting system during fire distribution line can not be pre-
The fault seen and the emergency starting of fire pump, be likely to cause the appearance of overload, but in order to win place
The quality time of reason fault, chopper will not thread off under this fault level, but can send alarm signal with
Just chopper user is made can to judge according to the special circumstances using scene at that time and determine accordingly.Only
Have when the load of main circuit is short-circuited fault, then should cut off circuit immediately.This power system just needs
Overload-alarm non-tripping device to be used, to ensure the persistence of power supply.Traditional chopper is when transshipping
After warning, can automatic shutdown circuit immediately, it is impossible to judge by user according to actual situation and accordingly
Decision, function singleness, poor universality.
The open a kind of chopper overload-alarm non-tripping device of Chinese patent 201110226634.5, it includes taking off
Detaining device pedestal and be installed on the trip shaft on electrical apparatus release pedestal, described trip shaft connects tripping mechanism, institute
State and on electrical apparatus release pedestal, be also equipped with several bimetal leafs, coordinate bimetal leaf to pacify on electrical apparatus release pedestal
Equipped with rotating lever, on described lever, corresponding bimetal leaf is provided with to adjust and requires warning overcurrent value
Screw of adjusting, one end correspondence lever of described trip shaft is provided with fixed support, solid on described fixed support
Surely having microswitch, this chopper overload-alarm non-tripping device is in some special requirement occasion, and chopper is sent out
When raw overload or short circuit, will not thread off under fault level, but alarm signal can be sent, so that chopper
User can judge according to the special circumstances using scene at that time and determine accordingly, can carry out multiple merit
Can select, versatility is good, adapts to different working environment needs.But this kind of chopper overload-alarm does not takes off
Buckle device takes up room bigger, it is impossible to be applicable to small-size moulded case circuit breaker.
Summary of the invention
It is an object of the invention to take up room relatively for existing breaker of plastic casing overload-alarm non-tripping device
Greatly, it is impossible to be applicable to the technological deficiency of small-size moulded case circuit breaker, it is provided that a kind of breaker of plastic casing overload-alarm is not
Trip gear, overload-alarm draw bar is installed on inside short-circuit protection draw bar, decreases one and leads
Draw the installing space of bar, make structure space compacter, save space, meet small-sized plastic-shell open circuit
Device structure needs, simple easily assembling.
Technical scheme
In order to realize above-mentioned technical purpose, the present invention designs a kind of breaker of plastic casing overload-alarm non-tripping device,
It includes drive mechanism support, and support shaft is arranged on dynamic mechanism rack, it is characterised in that: short-circuit protection leads
Draw bar and overload-alarm draw bar be all sleeved in support shaft and can be non-interference rotate around support shaft, described
Overload-alarm draw bar links with adjustable touch part, it is possible to promoted rotating around support shaft by adjustable touch part, mistake
Carrying and can trigger alarm signal collection output device in warning draw bar rotation process, described adjustable touch part fills
On bimetal leaf, bimetal leaf is fitted together with heater element, and heating element generating heat can make bimetal leaf
Deformation thus drive adjustable touch part promote overload-alarm draw bar rotate；
Described overload-alarm draw bar connects overload draw bar reduction torsion spring, and can reset at overload draw bar
Resetting under torsion spring effect, described short-circuit protection draw bar connects short-circuit protection draw bar reduction torsion spring, and energy
Reset under short-circuit protection draw bar reduction torsion spring effect.
Further, described bimetal leaf and heater element are fixed together and are contained on circuit breaker base, adjustable tactile
Moving part is contained in the installing hole of bimetal leaf upper end.
Further, described overload-alarm draw bar is installed on inside short-circuit protection draw bar.
Further, the torque arm of described overload draw bar reduction torsion spring one end coordinates with overload-alarm draw bar inwall
Installing, other end torque arm is arranged on drive mechanism support.
Further, one end of described short-circuit protection draw bar reduction torsion spring is arranged on drive mechanism support, separately
One end is contained in the reseting groove on short-circuit protection draw bar.
Further, described signal collection output dress is permutator or travel switch or microswitch, and it is installed
Chopper covers.
Further, described adjustable touch part is adjustable with the spacing of overload-alarm draw bar.
Beneficial effect
A kind of chopper overload-alarm non-tripping device that the present invention provides, including being arranged in same support shaft
Overload-alarm draw bar and short-circuit protection draw bar, overload-alarm draw bar and short-circuit protection draw bar are respectively
Having and it can be made to rotate the torsion spring of reset, wherein overload-alarm draw bar is installed on inside short-circuit protection draw bar,
Decrease the installing space of a draw bar so that the structure of this device is compacter.When performance loop occurs
During short trouble, the lead agency action of short-circuit protection draw bar promotes loop to disconnect, and does not affect its internal mistake
Carry the position of warning draw bar.When overload fault occurs in performance loop, overload-alarm draw bar can be can
Adjust steering-alarming signal collection output device under the promotion of touch part, thus trigger overload alarm signal.Cross
Carry warning draw bar and the separate movement locus of short-circuit protection draw bar and space ensure that two kinds of functions it
Between will not influence each other, thus improve the reliability of overload-alarm function.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the exploded view of the present invention.
Accompanying drawing 3 is the state diagram of the present invention when not breaking down of chopper performance loop.
Accompanying drawing 4 is the state diagram of the present invention when breaking down of chopper performance loop.
Accompanying drawing 5 is support shaft mounting structure schematic diagram in the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in figure 1 and 2, a kind of breaker of plastic casing overload-alarm non-tripping device, it includes driver
Structure support 1, support shaft 2 is arranged on dynamic mechanism rack 1, and short-circuit protection draw bar 3 draws with overload-alarm
Bar 4 is all sleeved in support shaft 2 and non-interference the rotating around support shaft 2 of energy, and described overload-alarm draws
It is internal that bar 4 is installed on short-circuit protection draw bar 3.Described overload-alarm draw bar 4 and adjustable touch part 5
Dynamic, it is possible to be promoted by adjustable touch part 5 and rotate around support shaft 2, in overload-alarm draw bar 4 rotation process
Can trigger alarm signal and collect output device 6, described adjustable touch part 5 is contained on bimetal leaf 7, described
Bimetal leaf 7 and heater element 8 are fixed together and are contained on circuit breaker base, and adjustable touch part 5 is contained in double
In the installing hole 701 of sheet metal 7 upper end.Heater element 8 heating can make bimetal leaf 7 deformation thus carry
Dynamic adjustable touch part 5 promotes overload-alarm draw bar 4 to rotate；
As shown in Figure 5, described overload-alarm draw bar 4 connects overload draw bar reduction torsion spring 9, overload
The torque arm of draw bar reduction torsion spring 9 one end coordinates installation, other end torque arm with overload-alarm draw bar 4 inwall
It is arranged on drive mechanism support 1.Overload draw bar reduction torsion spring 9 can make overload-alarm draw bar 4 nothing
Resetting under External Force Acting, described short-circuit protection draw bar 3 connects short-circuit protection draw bar reduction torsion spring 10,
One end of short-circuit protection draw bar reduction torsion spring 10 is arranged on drive mechanism support 1, and the other end is contained in short circuit
In reseting groove 301 on protection draw bar 3.Short-circuit protection draw bar reduction torsion spring 10 can make short-circuit protection
Draw bar 3 is without resetting under External Force Acting.
Described signal collection output device 6 is permutator or travel switch or microswitch, and it is arranged on disconnected
Road device covers.
Described adjustable touch part 5 is adjustable with the spacing of overload-alarm draw bar 4, it is achieved adjust overload report
The alert time.
As shown in Figure 3, when performance loop does not breaks down, overload-alarm draw bar 4 and short-circuit protection traction
Bar 3 is in initial position.Alarm signal collection output device 6 is in original state and does not send alarm signal.
As shown in Figure 4, when overload fault occurs in performance loop, heater element 8 is due to excessive by electric current
And producing more than heat during normal work so that bimetal leaf 7 drives adjustable touch part 5 towards overload report
Alert draw bar 4 direction is moved.When after overcurrent certain time, heat can reach certain value so that can
Adjust touch part 5 to promote overload-alarm draw bar 4 steering-alarming signal collection output device 6, touch alarm signal
Collect the contact on output device 6, thus send overload-alarm signal.
Whole process achieves the purpose that performance loop current overload is not threaded off, only performance loop and short circuit occurs
Time, short-circuit protection draw bar 3 just can rotate and drive trip gear to realize trip action.
A kind of breaker of plastic casing overload-alarm non-tripping device that the present invention provides, overload-alarm draw bar is pacified
It is loaded on inside short-circuit protection draw bar, decreases the installing space of a draw bar, make structure empty
Between compacter, save space, meet small-size moulded case circuit breaker structure needs, simple easily assembling.
Claims (7)
1. a breaker of plastic casing overload-alarm non-tripping device, it includes drive mechanism support (1), supports
Axle (2) is arranged on dynamic mechanism rack (1), it is characterised in that: short-circuit protection draw bar (3) and overload-alarm
Draw bar (4) be all sleeved on support shaft (2) upper and can be non-interference rotate around support shaft (2), described overload
Warning draw bar (4) links with adjustable touch part (5), it is possible to promoted around support shaft (2) by adjustable touch part (5)
Rotate, overload-alarm draw bar (4) rotation process can trigger alarm signal and collect output device (6), institute
Stating adjustable touch part (5) to be contained on bimetal leaf (7), bimetal leaf (7) is fitted together with heater element (8),
Heater element (8) heating can make bimetal leaf (7) deformation thus drive adjustable touch part (5) to promote overload report
Alert draw bar (4) rotates；
Described overload-alarm draw bar (4) connects overload draw bar reduction torsion spring (9), and can be in overload traction
Bar reduction torsion spring (9) effect is lower to be resetted, and described short-circuit protection draw bar (3) connects has short-circuit protection draw bar multiple
Position torsion spring (10), and can reset under short-circuit protection draw bar reduction torsion spring (10) acts on.
2. a kind of breaker of plastic casing overload-alarm non-tripping device as claimed in claim 1, its feature exists
In: described bimetal leaf (7) and heater element (8) are fixed together and are contained on circuit breaker base, adjustable shake-up
Part (5) is contained in the installing hole (701) of bimetal leaf (7) upper end.
3. a kind of breaker of plastic casing overload-alarm non-tripping device as claimed in claim 1, its feature exists
In: it is internal that described overload-alarm draw bar (4) is installed on short-circuit protection draw bar (3).
4. a kind of breaker of plastic casing overload-alarm non-tripping device as claimed in claim 1, its feature exists
In: the torque arm of described overload draw bar reduction torsion spring (9) one end coordinates peace with overload-alarm draw bar (4) inwall
Dress, other end torque arm is arranged on drive mechanism support (1).
5. a kind of breaker of plastic casing overload-alarm non-tripping device as claimed in claim 1, its feature exists
In: one end of described short-circuit protection draw bar reduction torsion spring (10) is arranged on drive mechanism support (1), separately
One end is contained in the reseting groove (301) on short-circuit protection draw bar (3) Nei.
6. a kind of breaker of plastic casing overload-alarm non-tripping device as claimed in claim 1, its feature exists
Being permutator or travel switch or microswitch in: described signal collection output device (6), it is arranged on
Chopper covers.
7. a kind of breaker of plastic casing overload-alarm non-tripping device as claimed in claim 1, it is characterised in that:
Described adjustable touch part (5) is adjustable with the spacing of overload-alarm draw bar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510079277.2A CN105990073A (en) | 2015-02-13 | 2015-02-13 | Overload alarm non-tripping device of molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510079277.2A CN105990073A (en) | 2015-02-13 | 2015-02-13 | Overload alarm non-tripping device of molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105990073A true CN105990073A (en) | 2016-10-05 |
Family
ID=57042387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510079277.2A Pending CN105990073A (en) | 2015-02-13 | 2015-02-13 | Overload alarm non-tripping device of molded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105990073A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230588A (en) * | 2017-07-07 | 2017-10-03 | 德力西电气有限公司 | A kind of breaker of plastic casing device with thermal overload alarm non-tripping function |
| CN107845550A (en) * | 2017-11-10 | 2018-03-27 | 浙江正泰电器股份有限公司 | A kind of tripping reset structure of breaker and draw bar |
| CN108257826A (en) * | 2018-02-05 | 2018-07-06 | 德力西电气有限公司 | It is a kind of that there is the breaker of plastic casing of overload-alarm |
| CN109243929A (en) * | 2018-10-30 | 2019-01-18 | 德力西电气有限公司 | A kind of breaker of plastic casing with adjustable type overload-alarm non-tripping function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013004505A1 (en) * | 2011-07-05 | 2013-01-10 | Siemens Aktiengesellschaft | Overload release, in particular for a circuit breaker |
| CN203192713U (en) * | 2012-12-31 | 2013-09-11 | 施耐德电器工业公司 | Release and circuit breaker containing the same |
| CN203910702U (en) * | 2014-06-17 | 2014-10-29 | 浙江天正电气股份有限公司 | Plastic housing circuit breaker with thermal overload alarm non-tripping function |
| CN204497171U (en) * | 2015-02-13 | 2015-07-22 | 上海良信电器股份有限公司 | Breaker of plastic casing overload-alarm non-tripping device |
-
2015
- 2015-02-13 CN CN201510079277.2A patent/CN105990073A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013004505A1 (en) * | 2011-07-05 | 2013-01-10 | Siemens Aktiengesellschaft | Overload release, in particular for a circuit breaker |
| CN203192713U (en) * | 2012-12-31 | 2013-09-11 | 施耐德电器工业公司 | Release and circuit breaker containing the same |
| CN203910702U (en) * | 2014-06-17 | 2014-10-29 | 浙江天正电气股份有限公司 | Plastic housing circuit breaker with thermal overload alarm non-tripping function |
| CN204497171U (en) * | 2015-02-13 | 2015-07-22 | 上海良信电器股份有限公司 | Breaker of plastic casing overload-alarm non-tripping device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107230588A (en) * | 2017-07-07 | 2017-10-03 | 德力西电气有限公司 | A kind of breaker of plastic casing device with thermal overload alarm non-tripping function |
| CN107845550A (en) * | 2017-11-10 | 2018-03-27 | 浙江正泰电器股份有限公司 | A kind of tripping reset structure of breaker and draw bar |
| CN107845550B (en) * | 2017-11-10 | 2020-04-17 | 浙江正泰电器股份有限公司 | Tripping reset structure of circuit breaker and traction rod |
| CN108257826A (en) * | 2018-02-05 | 2018-07-06 | 德力西电气有限公司 | It is a kind of that there is the breaker of plastic casing of overload-alarm |
| CN109243929A (en) * | 2018-10-30 | 2019-01-18 | 德力西电气有限公司 | A kind of breaker of plastic casing with adjustable type overload-alarm non-tripping function |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161005 |
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| RJ01 | Rejection of invention patent application after publication |