CN101853749A - The thermal release device that is used for electric protective equipment - Google Patents
The thermal release device that is used for electric protective equipment Download PDFInfo
- Publication number
- CN101853749A CN101853749A CN201010143795A CN201010143795A CN101853749A CN 101853749 A CN101853749 A CN 101853749A CN 201010143795 A CN201010143795 A CN 201010143795A CN 201010143795 A CN201010143795 A CN 201010143795A CN 101853749 A CN101853749 A CN 101853749A
- Authority
- CN
- China
- Prior art keywords
- slide rail
- bimetal leaf
- slope
- described slide
- stop part
- Prior art date
- 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.)
- Granted
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Classifications
-
- 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
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
Landscapes
- Thermally Actuated Switches (AREA)
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention relates to a kind of thermal release device that is used for electric protective equipment; described thermal release device comprises bimetal leaf; described bimetal leaf is designed to and the slide rail joint operation; described slide rail is connected to described release lever by the one end in hinged way; thereby after electrical overloads; when described bimetal leaf deforms; described bimetal leaf drives described slide rail along the dropout direction; described slide rail and stop part joint operation; described stop part is fixed with respect to the housing of described device; and be designed in the process that described slide rail moves, partly guide the track of described slide rail.Described equipment is characterised in that, described bimetal leaf comprises the part that forms the slope in the end of itself and described slide rail joint operation, described slope is arranged to when the phase I distortion takes place for described bimetal leaf, described slide rail is located against above-mentioned stop part, so that described stop part guides described slide rail in the motion process of described slide rail.
Description
Technical field
The present invention relates to be used for the thermal release device of electric protective equipment, described equipment comprises the release lever that is hinged on the mounting panel and is subjected to described trip gear control.When breaking down, mechanical linkages is disconnected, cause the operating mechanism of circuit breaker to be threaded off automatically, this dropout causes two contacts to be opened, described contact is respectively fixed contact and moving contact, described thermal release device comprises bimetal leaf, described bimetal leaf is designed to and the slide rail joint operation, described slide rail is connected to described lever by the one end in hinged way, thereby after electrical overloads, when described bimetal leaf deforms, drive described slide rail along the dropout direction, described slide rail and stop part joint operation, described stop part is fixed with respect to the housing of described device, and be designed in the process that described slide rail moves, partly guide the track of described slide rail.
Background technology
End by described calorifics bimetal leaf is directed to the direction that rests on the bearing point on the described slide rail perpendicular to described bimetal leaf at the tractive effort that applies on the described slide rail.When described bimetal leaf bent because of the thermal effect of electrical overloads, described direction changed.Then, the change of the direction of described power need keep less than maximum angle, thereby described slide rail is resisted against on the stop part.
But, in order to improve the performance of described equipment, may wish to use such bimetal leaf, the deflection of this bimetal leaf is too big, so that can't allow the direction of described power remain in the excursion of permission.
This moderate finite deformation of described bimetal leaf has produced bigger gradient in the end with the bimetal leaf of slide rail joint operation, promptly resist the gradient of described slide rail towards its stop part motion, thereby cause in the described mechanism dropout process in described slide rail motion, described stop part is designed to partly guide described slide rail.
Make that like this dropout stroke of described slide rail is not reproducible, the dropout under the given electric current (times) constantly also is like this.
Summary of the invention
The invention solves the problems referred to above, and proposed a kind of thermal release device that is used for electric protective equipment,, thereby improved the performance of described device even wherein take place to thread off and constantly also can repeat under the situation of big deflection at bimetal leaf.
For this reason; target of the present invention provides a kind of thermal release device that is used for electric protective equipment; described device is characterised in that; the end of described bimetal leaf slide rail joint operation described with it comprises the part that forms the slope; described slope is arranged to when the phase I distortion takes place for described bimetal leaf; described slide rail is located against above-mentioned stop part, so that described stop part guides described slide rail in the motion process of described slide rail.
According to special characteristic, the plane of the described part on formation slope and the about 10 ° α angle of vertical formation of described bimetal leaf.
According to another feature, the part on above-mentioned formation slope realizes by the described end of folding described bimetal leaf.
According to another kind of execution mode, the part on above-mentioned formation slope is by the part of the described end of the described bimetal leaf of shearing, thereby folding then this part forms slope and realizes.
According to another kind of execution mode, described slope assigns to realize that described extention is fixed to the described end of described bimetal leaf by appendix.
According to specific implementations, described equipment comprises the top section with operating mechanism and has the base section that described equipment is fixed on the device on the stayed surface, described slope is by realizing that to the end of the folding described bimetal leaf of described bottom of device the top of described equipment is pointed in described end in a side of the described relatively slide rail of described bimetal leaf.
According to another kind of execution mode, described equipment comprises the top section with operating mechanism and has the base section that described device is fixed on the device on the stayed surface, realize described slope by the end that folds described bimetal leaf downwards, described then end is pointed to the bottom of described equipment and is extended in a side identical with described slide rail of described bimetal leaf.
The further target of the present invention provides a kind of electric protective equipment, and described device comprises thermal release device, and this heat dropout heat comprises above-mentioned feature fully separately or in combination.
Description of drawings
It is more clear that other advantages of the present invention and feature will become from following detailed description, and below describe in detail and refer to the accompanying drawing that only provides as example, in the accompanying drawings,
Fig. 1 is the plane graph of circuit-breaker, changes Shell of circuit breaker and is removed, and described circuit breaker is equipped with the thermal release device of the specific implementations according to the present invention;
Fig. 2 is and the identical view of last width of cloth figure that this circuit-breaker is equipped with the thermal release device according to second embodiment of the invention;
Fig. 3 is a plane graph of not being with the circuit-breaker of top cover, and described circuit-breaker is equipped with the identical trip gear with last width of cloth figure;
Fig. 4 is a plane graph of not being with the circuit-breaker of housing, and described circuit breaker is equipped with the trip gear according to the 3rd execution mode;
Fig. 5 is a partial view, shows release lever of the prior art, slide rail and trip gear;
Fig. 6 is and the identical view of last width of cloth figure, has according to thermal release device of the present invention.
Embodiment
The miniature circuit breaker that has mold insulation housing D represents that in Fig. 1 to 4 this circuit breaker comprises a pair of dynamic/ static contact 1,2 therein by known way, and described moving contact 2 is supported by contact arm, and described contact arm is actuated by operating mechanism M.
This operating mechanism M comprises the handle hand-manipulated 3 that is used for operating described contact, and this handle is couple to drive link 4 and forms toggle; The support lever 5 of described contact arm, this support lever are hinged on the pivotal pin of swivel plate 6; The mechanical linkages that can disconnect, it is arranged between plate 6 and the drive link 4; With release lever 7, described release lever is hinged on the plate 6 and by electromagnetic tripping apparatus 8 and thermal release device 9 and controls, and makes mechanical linkages disconnect when breaking down, and causes described mechanism to be independent of handle 3 and threads off.By known mode itself, this thermal release device 9 comprises bimetal leaf 10, and electric current flows through from this bimetal leaf, and described bimetal leaf is fixed to housing B by one end thereof 10a, and by its relative end 10b and slide rail 11 joint operations, described slide rail is mechanically connected to release lever 7.Find out from Fig. 5 and 6 especially, slide rail 11 is knuckle shaped and comprises the end 11a that is connected to release lever 7 in hinged way and the part (invisible in the figure) of extending perpendicular to the slide rail plane, bimetal leaf 10 is pressed against on the described part, thereby applies tractive effort on described slide rail 11.Described slide rail is designed to and can moves, thereby is in when distortion phase I at this bimetal leaf, will himself be positioned on the stop part 12
According to embodiments of the present invention shown in Figure 1, be designed to comprise slope 13 with the end 10b of the bimetal leaf of slide rail 11 joint operations, this slope forms by folding described end downwards, and extend along the direction of operating mechanism M towards the top of equipment on described slope.
According to Fig. 2 and 3 described execution modes, the described end of described bimetal leaf is sheared, and the part 14 of this end is folded to form the slope 15 of extending towards device bottom, promptly on the device F that is fixed of described equipment was fixed to a side on the stayed surface, extended between the critical piece of described slide rail and described bimetal leaf on described slope.
In Fig. 4, described slope forms by optional feature 6, and this optional feature forms the slope of the described end that is fixed to described bimetal leaf.In whole these execution modes, the angle [alpha] that forms between end piece that forms slope 13 and the vertical D of bimetal leaf is approximately 10 °.
Following with reference to the description of drawings operation of the apparatus according to the invention.
In Fig. 5, thermal release device is a device of the prior art.In the figure, can see that the power F1 that is applied on the slide rail 11 removes slide rail 11 from its stop part 12 when bimetal leaf 10 beginning deflections.This is because the deflection of described bimetal leaf is bigger, causes bimetal leaf no longer to be brought into play the positioning function of slide rail against stop part.
In Fig. 6, on the contrary, according to the execution mode shown in Fig. 2 and 3, slope 13 is formed on the end of described bimetal leaf.Owing to there is this slope, when beginning deflection, bimetal leaf drives described slide rail 11 towards above-mentioned stop part 12 by its power F2 that applies.
Therefore, realized a kind of electric protective equipment by the present invention, wherein begun deflection from described bimetal leaf, described slide rail quilt is towards its stop part bias voltage.Thereby, beginning before motion on the dropout direction at bimetal leaf, described slide rail is correctly located.Slide rail is positioned on its stop part, makes described stop part when described slide rail moves, and partly guides described slide rail.Therefore dropout track and slide rail stroke can repeat, and the dropout under the given electric current constantly also is so, makes the performance of described device improve like this.This improvement shows as following advantage: the position that industrial cost is lower, can not occupy the circuit-breaker miscellaneous part, and can not bring any extensive change to the kinematic chain of circuit-breaker.The present invention is applied to the protectiveness switching device of any use calorifics bimetal leaf, for example motor protective circuit circuit breaker, motor contactor or the like.
The present invention be restricted to never in any form certainly described and shown in execution mode, these execution modes are only as example.
Therefore, can reckon with that other devices also can be used to form the slope.
On the contrary, the present invention extends to the whole technology equivalent scheme that comprise described device and the combination of these schemes, realizes if the latter is a spirit according to the present invention.
Claims (8)
1. thermal release device that is used for electric protective equipment; described device comprises the release lever that is hinged on the mounting panel; described release lever is subjected to the control of described trip gear; so that mechanical linkages is disconnected; cause the operating mechanism of circuit breaker to be threaded off automatically; this dropout causes two contacts to be opened; described contact is respectively fixed contact and moving contact; described thermal release device comprises bimetal leaf; described bimetal leaf is designed to and the slide rail joint operation; described slide rail is connected to described release lever by the one end in hinged way; thereby after electrical overloads; when described bimetal leaf deforms, drive described slide rail, described slide rail and stop part joint operation along the dropout direction; described stop part is fixed with respect to the housing of described device; and be designed in the process that described slide rail moves, partly guide the track of described slide rail
It is characterized in that, described bimetal leaf (10) comprises the part that forms slope (13) in the end (10b) of itself and described slide rail (11) joint operation, described slope is arranged to when the phase I distortion takes place for described bimetal leaf, against above-mentioned stop part (12) location, make described stop part in the motion process of described slide rail, guide described slide rail described slide rail (11).
2. trip gear as claimed in claim 1 is characterized in that, the plane of the described part on formation slope (13) and the about 10 ° α angle of vertical formation of described bimetal leaf (10).
3. trip gear as claimed in claim 1 or 2 is characterized in that, the part on above-mentioned formation slope (13) realizes by the described end of folding described bimetal leaf (10).
4. trip gear as claimed in claim 1 or 2 is characterized in that, the part of the described end of the part on above-mentioned formation slope (13) by shearing described bimetal leaf (10), folding then this part (14) thus form the slope and realize.
5. trip gear as claimed in claim 1 or 2 is characterized in that, realize by optional feature (16) described slope (13), and described optional feature is fixed to the described end of described bimetal leaf.
6. trip gear as claimed in claim 3, it is characterized in that, described equipment comprises the top section with operating mechanism and has the base section that described equipment is fixed on the device on the stayed surface, described slope (13) is by realizing to the end of the folding described bimetal leaf of described bottom of device, the top of described equipment is pointed in a side of the described relatively slide rail of described bimetal leaf in described end.
7. trip gear as claimed in claim 3, it is characterized in that, described device comprises the top section with operating mechanism and has the base section that described device is fixed on the device on the stayed surface, realize described slope by the end that folds described bimetal leaf downwards, described then end is pointed to the bottom of described device and is extended in a described bimetal leaf side identical with described slide rail.
8. electric protective equipment, described equipment comprises each described thermal release device of claim as described above.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0901580A FR2943847B1 (en) | 2009-03-31 | 2009-03-31 | THERMAL RELEASE DEVICE FOR AN ELECTRICAL PROTECTION DEVICE |
| FR09/01580 | 2009-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101853749A true CN101853749A (en) | 2010-10-06 |
| CN101853749B CN101853749B (en) | 2014-04-16 |
Family
ID=41275153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010143795.3A Active CN101853749B (en) | 2009-03-31 | 2010-03-17 | Thermal trip device for electrical protection device |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2237302B1 (en) |
| CN (1) | CN101853749B (en) |
| AT (1) | ATE536625T1 (en) |
| BR (1) | BRPI1000820B1 (en) |
| ES (1) | ES2374876T3 (en) |
| FR (1) | FR2943847B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288572A (en) * | 2017-12-28 | 2018-07-17 | 温州市新蓝天电器有限公司 | The breaker of integrated latch tripping mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869960B (en) * | 2016-06-02 | 2018-11-23 | 无锡新宏泰电器科技股份有限公司 | A kind of Thermomagnetic type breaker of plastic casing overload signal output device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0018553A1 (en) * | 1979-04-25 | 1980-11-12 | SOCIETE D'APPAREILLAGE ELECTRIQUE SAPAREL Société anonyme dite: | Modular circuit breaker |
| EP0962952A1 (en) * | 1998-06-04 | 1999-12-08 | Schneider Electric Industries SA | Dispositif de coupure électrique comprenant un dispositif de déclenchement différentiel et disjoncteur comprenant un tel dispositif |
| CN2517101Y (en) * | 2001-12-31 | 2002-10-16 | 施贻挺 | Small-sized circuit breaker operating device |
| CN2938385Y (en) * | 2006-08-17 | 2007-08-22 | 浙江省志明电气进出口有限公司 | Leakage circuit breaker |
-
2009
- 2009-03-31 FR FR0901580A patent/FR2943847B1/en not_active Expired - Fee Related
-
2010
- 2010-01-18 ES ES10354004T patent/ES2374876T3/en active Active
- 2010-01-18 AT AT10354004T patent/ATE536625T1/en active
- 2010-01-18 EP EP10354004A patent/EP2237302B1/en active Active
- 2010-03-17 CN CN201010143795.3A patent/CN101853749B/en active Active
- 2010-03-30 BR BRPI1000820-9A patent/BRPI1000820B1/en active IP Right Grant
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0018553A1 (en) * | 1979-04-25 | 1980-11-12 | SOCIETE D'APPAREILLAGE ELECTRIQUE SAPAREL Société anonyme dite: | Modular circuit breaker |
| EP0962952A1 (en) * | 1998-06-04 | 1999-12-08 | Schneider Electric Industries SA | Dispositif de coupure électrique comprenant un dispositif de déclenchement différentiel et disjoncteur comprenant un tel dispositif |
| CN2517101Y (en) * | 2001-12-31 | 2002-10-16 | 施贻挺 | Small-sized circuit breaker operating device |
| CN2938385Y (en) * | 2006-08-17 | 2007-08-22 | 浙江省志明电气进出口有限公司 | Leakage circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288572A (en) * | 2017-12-28 | 2018-07-17 | 温州市新蓝天电器有限公司 | The breaker of integrated latch tripping mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2237302A1 (en) | 2010-10-06 |
| CN101853749B (en) | 2014-04-16 |
| BRPI1000820A2 (en) | 2011-03-22 |
| EP2237302B1 (en) | 2011-12-07 |
| FR2943847B1 (en) | 2011-04-01 |
| BRPI1000820B1 (en) | 2020-08-18 |
| ES2374876T3 (en) | 2012-02-22 |
| FR2943847A1 (en) | 2010-10-01 |
| ATE536625T1 (en) | 2011-12-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |