CN102760586B - There is the electrical contact device of effective breaking capability - Google Patents
There is the electrical contact device of effective breaking capability Download PDFInfo
- Publication number
- CN102760586B CN102760586B CN201210121559.0A CN201210121559A CN102760586B CN 102760586 B CN102760586 B CN 102760586B CN 201210121559 A CN201210121559 A CN 201210121559A CN 102760586 B CN102760586 B CN 102760586B
- Authority
- CN
- China
- Prior art keywords
- current path
- contact element
- movable contact
- electrical contact
- contact device
- 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.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H2001/2091—Bridging contacts having two pivotally and electrically connected halve bridges
Landscapes
- Breakers (AREA)
Abstract
The present invention relates to a kind of electrical contact device with effective breaking capability, comprise fixed contact (1), between contact position and off position moveable movable contact (2) and rigidity and about moveable two current paths (31 each other, 32), movable contact and current path (31, 32) one of install around rotating shaft (X) rotatably, thus at the contact position of movable contact, electric current flows through current path, electromagnetic force is applied between these paths, this electromagnetic force changes into the supporting force of movable contact on fixed contact.According to the present invention, rotating shaft (X) is arranged on movable support member (41) about fixed contact (1), and movable contact (2) can by moving between its off position and its contact position about fixed contact (1) moveable support (41).
Description
Technical field
The present invention relates generally to Denso for field.
More specifically, the present invention relates to electrical contact device (electricalcontactdevice), electrical contact device in touch switch cutter (triggerswitch-disconnector), and this electrical contact device comprises at least fixed contact element, movable contact element and be all rigidity and about moveable first and second current paths (currentpath) each other, moveable about fixed contact element between the off position of movable contact element current flowing in prevention first and second current path and the contact position allowing current flowing in the first and second current paths, movable contact element is rotatably installed around rotating shaft, described first current path is connected to described movable contact element rigidly in the mode rotated around rotating shaft, and described first and second current paths are electrically connected to each other, to stand electromagnetic force when current flowing, this electromagnetic force transforms the supporting force of movable contact element on fixed contact element for this reason by rotating movable contact element around rotating shaft, described rotating shaft is arranged on movable support member about fixed contact element, and pass through about fixed contact element moveable support, movable contact element can move between its off position and its contact position.
Background technology
Especially, the equipment of this type is known from European patent application EP 1879204.
In this device, the electromagnetic force that use produces to increase by current flowing the power that movable contact element is pressed against on fixed contact element contributes to when high-density current flows, and prevents fixed contact element and movable contact element to be welded to over each other under the impact of excessive temperature.
In fact, the supporting force of movable contact element on fixed contact element is less, and between these two contact elements, the current channel region of interface is more weak.
But this current channel region is more weak, between two contact elements, the resistance at interface is higher, and thus when current flowing increases, the temperature at this interface is higher.
Thus, the increase in this current channel region of interface between these contact elements is made to be possible by using increase that the electromagnetic force produced by electric current self obtains, the supporting force of movable contact element on fixed contact element, thus reducing the resistance also final Thermal release limited due to Joule effect at this interface, this is because this electric current passes through can be welded to numerical value over each other lower than fixed contact element and movable contact element.
But, this technology can only the first current path and the second current path simultaneously sufficiently long and mutually sufficiently near time just show the efficiency of the best, wherein between the first current path and the second current path, create the electromagnetic force for increasing supporting force mutual between fixed contact element and movable contact element.
But these current paths are longer and each other more close, then less in the distance of off position separation fixed contact element and movable contact element.
In addition, consider that the insulation property of this contact device are higher, the distance being separated fixed contact element and movable contact element at off position is larger, then this result is extremely undesired.
Summary of the invention
In this article, the object of this invention is to provide a kind of contact device, its preferably use by electric current by the electromagnetic force that produces with the mutual supporting force increasing fixed contact element and movable contact element while, illustrate high insulation property at the off position of movable contact element.
, be further according to the contact device essential characteristic of the present invention of the general definition provided in above-mentioned introduction: move period at movable contact element about fixed contact element, the distance between current path keeps constant for this reason.
Preferably, this electrical contact device comprises shell, and wherein fixed contact element is fixed to shell.
First may execution mode first can in selection scheme, the second current path is fixing about fixed contact element, and strutting piece is rotatable is arranged on movably in shell.
First may execution mode second can in selection scheme, the second current path is fixing about fixed contact element, and strutting piece is translationally arranged in shell movably.
In execution mode, this electrical contact device may be set second, make it comprise the first and second fixed contact elements, the first and second movable contact elements and about moveable described first and second rigid electric circulation flow paths each other; First and second movable contact elements are moveable about the first and second fixed contact elements between the off position of current flowing and the contact position allowing current flowing in the first and second current paths respectively in prevention first and second current path; First and second movable contact elements are rotatably installed around the first and second corresponding rotating shafts; Described first and second current paths are rigidly connected to described first and second movable contact elements respectively in the mode rotated around the first and second corresponding rotating shafts; Described first and second current paths are electrically connected to each other, make in this way to stand electromagnetic force when current flowing, this electromagnetic force is converted into the supporting force of the first and second movable contact elements respectively on the first and second fixed contact elements by rotating the first and second movable contact elements around the first and second corresponding rotating shafts; Described first and second rotating shafts are arranged on identical movable support member about each in the first and second fixed contact elements; And it is by about the first and second fixed contact element moveable supports, moveable the while that the first and second movable contact elements being between its off position and its contact position.
In this case, strutting piece can advantageously translationally be arranged in shell movably.
This electrical contact device preferentially comprises the metal braid of the softness of electrical connection first and second current path, and does not consider its execution mode.
In addition, what possibility was wise is, the first and second current paths are provided to make it be electrically connected to each other, thus identical electric current with contrary direction through the first and second current paths, and at the contact position of movable contact element or the contact position of each movable contact element, these first and second current paths are parallel to each other substantially.
Accompanying drawing explanation
Other features and advantages of the present invention by reading only in order to reference and the following description never limited, and become clear with reference to after accompanying drawing, wherein:
Fig. 1 is the schematic diagram of known electric contact device, comprises the unique movable contact be presented in off position;
Fig. 2 is the schematic diagram of Fig. 1 electrical contact device, and wherein unique movable contact element is presented in contact position;
Fig. 3 is may the schematic diagram of electrical contact device of the first alternate embodiment of execution mode according to the present invention first, comprises the unique movable contact be presented in off position;
Fig. 4 is the schematic diagram of Fig. 3 electrical contact device, and wherein unique movable contact element is presented in contact position;
Fig. 5 is the schematic diagram of the electrical contact device according to the present invention second possibility execution mode, comprises two movable contact be presented in off position;
Fig. 6 is the schematic diagram of Fig. 5 electrical contact device, and wherein two movable contact are presented in contact position;
Fig. 7 is may the view of electrical contact device of the second alternate embodiment of execution mode according to the present invention first, and wherein unique movable contact element is presented in off position;
Fig. 8 is the view of Fig. 7 electrical contact device, and wherein unique movable contact element is presented in contact position;
Fig. 9 is the view of the electrical contact device according to the present invention second possibility execution mode, and wherein two movable contact are presented in off position; And
Figure 10 is the view of Fig. 9 electrical contact device, and wherein two movable contact are presented in contact position.
Embodiment
As mentioned above, the present invention relates to the electrical contact device be particularly used in touch switch cutter.
The known device that the present invention will improve those types of open circuit efficiency has been demonstrated in Fig. 1 and 2.
This equipment comprises fixed contact element 1, movable contact element 2 and two current paths 31 and 32.
Mounted is all rigidity with relative to each other moveable current path 31 and 32, is namely not easy to stand obvious distortion in it normally uses, comprises within the scope of the invention.
Typically, these current paths 31 and 32 realize, such as, with the form of copper with the form of rigid metal conductor.
Movable contact element 2 can move between off position and contact position about fixed contact element 1, this off position is visible in FIG and prevent the flowing of electric current in current path 31 and 32, and this contact position is visible in fig. 2 and make the flowing of electric current in these current paths 31 and 32 become possibility.
In known contact device, by installing this movable contact element 2 and current path 31 in the mode rotated around rotating shaft X simultaneously, obtain the movement of movable contact element 2 between its off position and its contact position, this movable contact element 2 and this current path 31 are connected to identical in rotary moving to stand simultaneously each other rigidly.
In addition, current path 31 and 32 is such as electrically connected by soft metal braid 6 with being one another in series, and with when movable contact element 2 contacts on fixed contact element 1, can be passed through by identical electric current.
As in aforementioned patent EP1879204 explain, braid 6 connects current path 31 and 32, thus when current flowing, these current paths accept electromagnetic force, and this electromagnetic force is corresponding to the couple be applied to about rotating shaft X on current path 31 and be sent to movable contact element 2 with the form of the supporting force of this movable contact element 2 on fixed contact element 1.
But, as observed shown in Fig. 1 and 2 simultaneously, current path 31 and 32 is longer and it is mutually more close, ultimate range then between fixed contact element 1 and movable contact element 2 is less, thus constitute a threat under high-tension situation: contact device acts on as gap, and thus no longer realizes its switching function in the configuration as shown in fig. 1.
In order to head it off, the present invention especially Fig. 3,4, provide the rotating shaft X installing movable contact element 2 about fixed contact element 1 on movable support member 41 in the first execution mode shown in 7 and 8, and realize the movement of movable contact element 2 between its off position and its contact position by strutting piece 41 about the movement of fixed contact element 1.
On the one hand, as Fig. 1 and 3 relatively shown in, and on the other hand, as Fig. 2 and 4 relatively shown in, current path 31 and 32 is the invention enables to be possible closer to reducing the stroke of movable contact element 2 about fixed contact element 1 each other and not, or equivalently, the invention enables the while of increasing this trip keeps identical distance to become possibility between current path 31 and 32.
Can in selection scheme at first of the first execution mode shown in Fig. 3 and 4, advantageously, current path 32 is fixing about fixed contact element 1, and strutting piece 41 in shell can be the position of the off position corresponding to movable contact electric current and corresponding to the position passed through for movable contact electric current position between translation moveable, this moves and is demonstrated by double-head arrow in figure 3.
Usually, electrical contact device comprises (Fig. 7 and 8) shell 5, fixed contact element 1 is fixed to shell 5, and strutting piece 41 can be installed movably in this shell 5.
In the second alternate embodiment of the first execution mode shown in Fig. 7 and 8, electrical contact device only comprises an independent movable contact element 2.In this case, advantageously, current path 32 is fixing about fixed contact element 1, and strutting piece 41 can be such as be arranged on movably in shell 5 around axle 410 is rotatable.
Fig. 9 and 10 has demonstrated the second possibility execution mode of the present invention, and wherein electrical contact device comprises two movable contact elements 21 and 22, and the operating principle of this second execution mode demonstrates in figs. 5 and 6.
Except these two movable contact elements 21 and 22, comprise two fixed contact elements 11 and 12 according to the equipment of this second execution mode, and as in the first embodiment, two current paths 31 and 32 are rigidity and about removable each other.
Movable contact element 21 and 22 can move about fixed contact element 11 and 12 respectively between off position (Fig. 5 and 9) and contact position (Fig. 6 and 10), off position wherein prevents electric current from flowing in current path 31 and 32, and contact position allows electric current to flow in these current paths 31 and 32.
As in the first execution mode, movable contact element 21 and current path 31 are all rotatably installed around identical rotating shaft X1, are connected to each other rigidly simultaneously, always to stand identical in rotary moving simultaneously.
In of equal value and symmetrical mode, movable contact element 22 and current path 32 are all rotatably installed around identical rotating shaft X2, and while is connected to each other rigidly, always to stand identical in rotary moving simultaneously.
As in the first execution mode, current path 31 and 32 is such as electrically connected to each other by soft metal braid 6, to stand electromagnetic force when current flowing, this electromagnetic force by around these current paths and the rotation of corresponding rotating shaft X1 and X2 of movable contact element 21 and 22 that connects respectively thereof, changes into each in these movable contact elements 21 and 22 supporting force on its corresponding fixed contact element 11 or 12.
In this embodiment, rotating shaft X1 and X2 is arranged on identical strutting piece 42, and strutting piece 42 is moveable about each in fixed contact element 11 and 12.
By about fixed contact element 11 and 12 moveable support 42, thus movable contact element 21 and 22 can move between its off position and its contact position simultaneously.
And as shown in Figures 9 and 10, rotating shaft X1 and X2 can be coaxial in fact.
Comprise the situation typical of the shell 5 that fixed contact element 11 and 12 is fixed thereon in electrical contact device under, strutting piece 42 is arranged in this shell 5 movably, preferably for this second execution mode in the mode of translation.
Fig. 8 and 10 shown two execution modes each in, in the configuration that each movable contact element contacts with corresponding fixed contact element, current path 31 and 32 is parallel to each other substantially.
In addition, these two execution modes each in, current path 31 and 32 is electrically connected to each other, and therefore identical electric current through current path 31 and 32, makes current path 31 and 32 stand the electromagnetic force it mutually repelled with contrary direction.
Thus this electromagnetic repulsive force acted on path 31 and 32 has makes each movable contact element 2,21 or 22 rotate and the effect be pressed on corresponding fixed contact element 1,11 or 12 around its rotating shaft X, X1 or X2.
Claims (9)
1. an electrical contact device, at least comprise fixed contact element (1), movable contact element (2) and rigidity and about moveable first current path and the second current path (31 each other, 32), described movable contact element (2) is at described first current path of prevention and described second current path (31, 32) off position and described first current path of permission and described second current path (31 of the current flowing in, 32) be moveable about described fixed contact element (1) between the contact position of the current flowing in, described movable contact element (2) is rotatably installed around rotating shaft (X), described first current path (31) is connected to described movable contact element (2) rigidly in the mode rotated around described rotating shaft (X), and described first current path and described second current path (31, 32) be electrically connected to each other, to stand electromagnetic force when current flowing, described electromagnetic force is by rotating described movable contact element (2 around described rotating shaft (X), 21) supporting force of described movable contact element (2) on described fixed contact element (1) is converted into, and by mobile about the moveable strutting piece (41) of described fixed contact element (1), described movable contact element (2) can be moved between its off position and its contact position, it is characterized in that: described rotating shaft (X) is arranged on described moveable strutting piece (41), at described movable contact element (2, 21) about described fixed contact element (1, 11) during mobile, described first current path and described second current path (31, 32) distance between keeps constant.
2. electrical contact device according to claim 1, is characterized in that: described electrical contact device is used in the electrical contact device in touch switch cutter.
3. electrical contact device according to claim 1, is characterized in that: described electrical contact device comprises shell (5), and described fixed contact element (1) is fixed to described shell (5).
4. electrical contact device according to claim 2, is characterized in that: described electrical contact device comprises shell (5), and described fixed contact element (1) is fixed to described shell (5).
5. the electrical contact device according to any one in Claims 1-4, is characterized in that: described second current path (32) is fixing about described fixed contact element (1).
6. the electrical contact device according to claim 3 or 4, is characterized in that: described strutting piece (41) is rotatable to be arranged in described shell (5) movably.
7. the electrical contact device according to claim 3 or 4, is characterized in that: described strutting piece (41) is translationally arranged in described shell (5) movably.
8. the electrical contact device according to any one in Claims 1-4, is characterized in that: described electrical contact device comprises the metal braid (6) of the softness of described first current path of electrical connection and described second current path (31,32).
9. the electrical contact device according to any one in Claims 1-4, it is characterized in that: described first current path and described second current path (31,32) are electrically connected to each other, thus identical electric current with contrary direction through described first current path and described second current path (31,32), and at the contact position of described movable contact element (2), described first current path and described second current path (31,32) are parallel to each other substantially.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1153598A FR2974660B1 (en) | 2011-04-27 | 2011-04-27 | ELECTRIC CONTACT DEVICE WITH HIGH PERFORMANCE CUT |
| FR1153598 | 2011-04-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102760586A CN102760586A (en) | 2012-10-31 |
| CN102760586B true CN102760586B (en) | 2016-03-16 |
Family
ID=45922628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210121559.0A Expired - Fee Related CN102760586B (en) | 2011-04-27 | 2012-04-23 | There is the electrical contact device of effective breaking capability |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2518746B1 (en) |
| CN (1) | CN102760586B (en) |
| FR (1) | FR2974660B1 (en) |
| PL (1) | PL2518746T3 (en) |
| RU (1) | RU2598539C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020129630A1 (en) | 2019-11-11 | 2021-05-12 | Defond Components Limited | A LOCKING MECHANISM FOR LOCKING A TRIGGER ASSEMBLY OF AN ELECTRICAL DEVICE |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1053936A (en) * | 1964-08-01 | |||
| DE1218594B (en) * | 1963-08-24 | 1966-06-08 | Stotz Kontakt Gmbh | Switchgear, in particular circuit breakers |
| FR2480996A1 (en) * | 1980-04-17 | 1981-10-23 | Etude Realisa Disjoncteurs | Contact operating mechanism for LV cut=out - has slider forced down by spring against moving contacts underneath |
| CN101106025A (en) * | 2006-07-13 | 2008-01-16 | 西门子能量及自动化公司 | Design and method for keeping electrical contacts closed during short circuits |
| CN101145453A (en) * | 2006-09-12 | 2008-03-19 | 施耐德电器工业公司 | Contact device for an electrical apparatus and electrical apparatus provided with such a device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6054911A (en) * | 1996-01-22 | 2000-04-25 | Siemens Aktiengesellschaft | Electrical switching device |
-
2011
- 2011-04-27 FR FR1153598A patent/FR2974660B1/en not_active Expired - Fee Related
-
2012
- 2012-04-05 PL PL12163351T patent/PL2518746T3/en unknown
- 2012-04-05 EP EP12163351.5A patent/EP2518746B1/en active Active
- 2012-04-10 RU RU2012114088/07A patent/RU2598539C2/en active
- 2012-04-23 CN CN201210121559.0A patent/CN102760586B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1218594B (en) * | 1963-08-24 | 1966-06-08 | Stotz Kontakt Gmbh | Switchgear, in particular circuit breakers |
| GB1053936A (en) * | 1964-08-01 | |||
| FR2480996A1 (en) * | 1980-04-17 | 1981-10-23 | Etude Realisa Disjoncteurs | Contact operating mechanism for LV cut=out - has slider forced down by spring against moving contacts underneath |
| CN101106025A (en) * | 2006-07-13 | 2008-01-16 | 西门子能量及自动化公司 | Design and method for keeping electrical contacts closed during short circuits |
| CN101145453A (en) * | 2006-09-12 | 2008-03-19 | 施耐德电器工业公司 | Contact device for an electrical apparatus and electrical apparatus provided with such a device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2518746B1 (en) | 2018-07-18 |
| RU2598539C2 (en) | 2016-09-27 |
| FR2974660A1 (en) | 2012-11-02 |
| PL2518746T3 (en) | 2019-01-31 |
| RU2012114088A (en) | 2013-10-20 |
| FR2974660B1 (en) | 2018-05-25 |
| CN102760586A (en) | 2012-10-31 |
| EP2518746A1 (en) | 2012-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 |