CN102760586A - Electrical contact device with efficient cutting - Google Patents
Electrical contact device with efficient cutting Download PDFInfo
- Publication number
- CN102760586A CN102760586A CN2012101215590A CN201210121559A CN102760586A CN 102760586 A CN102760586 A CN 102760586A CN 2012101215590 A CN2012101215590 A CN 2012101215590A CN 201210121559 A CN201210121559 A CN 201210121559A CN 102760586 A CN102760586 A CN 102760586A
- Authority
- CN
- China
- Prior art keywords
- current path
- removable
- contact
- contact elements
- contact element
- 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
Links
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 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
Images
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 invention relates to an electrical contact device with efficient cutting capability, comprising a fixed contact element (1), a movable contact element (2) moving between cut-off and contact positions, and two current paths (31, 32) which are rigid and capable of moving relative to each other, wherein the movable contact element and one of the current paths (31, 32) are installed to a rotation axle (X) in a rotary manner, thus to undergo an electromagnetic force between the current paths and the contact position of the movable contact element, with the current passing through the current paths. The electromagnetic force is converted into a support force to support the movable contact element. According to the invention, the rotation axle (X) is arranged on a movable support (41) relative to the fixed contact element. The movable contact element is capable of moving between the cut-off and contact positions via the movable support (41) relative to the fixed contact element.
Description
The present invention relates generally to Denso and is equipped with the field.
More specifically; The present invention relates to electrical contact equipment (electrical contact device); Electrical contact equipment in the touch switch cutter (trigger switch-disconnector); And this electrical contact equipment comprises fixed contact element, removable contact elements at least and all be rigidity and about first and second current paths (current path) movably each other; The removable contact elements off position that electric current flows in stoping first and second current paths and to allow between electric current flows in first and second current paths the contact position about the fixed contact element be movably; Removable contact elements is rotatably installed around rotating shaft; Said first current path is connected to said removable contact elements rigidly with the mode around rotating shaft rotation, and said first and second current paths are electrically connected each other, to stand electromagnetic force under the situation that flows at electric current; This electromagnetic force transforms the supporting force of removable for this reason contact elements on the fixed contact element through rotating removable contact elements around rotating shaft; Said rotating shaft is installed on the movable support member about the fixed contact element, and passes through about fixed contact element moveable support, and removable contact elements can move between its off position and its contact position.
Especially, the equipment of this type is known from European patent application EP 1879204.
In this equipment; Use flow to produce to increase the electromagnetic force that removable contact elements is pressed against the power on the fixed contact element through electric current and helps under the situation that high-density current flows, to prevent that fixed contact element and removable contact elements are welded to over each other under the influence of excessive temperature.
In fact, the supporting force of removable contact elements on the fixed contact element is more little, between these two contact elements at the interface current channel zone just more a little less than.
Yet, this current channel zone more a little less than, the resistance at interface is just high more between two contact elements, and thereby under electric current flows the situation that increases, the temperature at this interface is just high more.
Thereby;, removable contact elements that the electromagnetic force that produced by electric current self obtains through using makes that in the increase of the supporting force on the fixed contact element at the interface the increase in this current channel zone between these contact elements be possible; Thereby the resistance and the final restriction that have reduced this interface are because the heat of Joule effect discharges, and this is because this electric current can be welded to numerical value over each other and passes through to be lower than fixed contact element and removable contact elements.
Yet; This technology can only be at first current path and second current path sufficiently long simultaneously and each other sufficiently near the time just show best efficient; Wherein between first current path and second current path, produced the electromagnetic force that is used to increase mutual supporting force between fixed contact element and the removable contact elements.
Yet these current paths are longer and each other more approaching, and the distance of separating fixed contact element and removable contact elements at off position is just more little.
In addition, consider that the insulation property of this contact device are high more, the distance of separating fixed contact element and removable contact elements at off position is just big more, and then this result is extremely undesired.
In this article; The purpose of this invention is to provide a kind of contact device; It has showed high insulation property at the off position of removable contact elements when preferably using by the mutual supporting force of electromagnetic force with increase fixed contact element and removable contact elements of electric current through generation.
For this reason, further the contact device essential characteristic of the present invention according to the General Definition that in above-mentioned introduction, provides is: during removable contact elements moved about the fixed contact element, the distance between the current path kept constant.
Preferably, this electrical contact equipment comprises shell, and wherein the fixed contact element is fixed to shell.
But first maybe execution mode first selection scheme in, second current path is fixed about the fixed contact element, and strutting piece is rotatable is installed in the shell movably.
But in second selection scheme of the first possibility execution mode, second current path is fixed about the fixed contact element, and strutting piece is installed in the shell with translation mode movably.
Second maybe execution mode in, this electrical contact equipment is set, make it comprise the first and second fixed contact elements, the first and second removable contact elements and about movably said first and second rigid electric circulation flow paths each other; The first and second removable contact elements off position that electric current flows in stoping first and second current paths respectively and to allow between electric current flows in first and second current paths the contact position about the first and second fixed contact elements be movably; The first and second removable contact elements are rotatably installed around the first and second corresponding rotating shafts; Said first and second current paths are rigidly connected to the said first and second removable contact elements respectively with the mode around the first and second corresponding rotating shaft rotations; Said first and second current paths are electrically connected each other; Make in this way and under the situation that electric current flows, stand electromagnetic force that this electromagnetic force is converted into the first and second removable contact elements supporting force on the first and second fixed contact elements respectively through rotating the first and second removable contact elements around the first and second corresponding rotating shafts; Said first and second rotating shafts are installed on the identical movable support member about in the first and second fixed contact elements each; And pass through about the first and second fixed contact element moveable supports, the first and second removable contact elements are simultaneously movably between its off position and its contact position.
Under this situation, strutting piece can advantageously be installed in the shell with translation mode movably.
This electrical contact equipment preferentially comprises the metal braid of the softness that is electrically connected first and second current paths, and does not consider its execution mode.
In addition; What possibility was wise is; Provide first and second current paths that it is electrically connected to each other; Through first and second current paths, and at the contact position of removable contact elements or the contact position of each removable contact elements, thereby these first and second current paths are parallel to each other identical electric current basically with opposite direction.
Other features and advantages of the present invention will be merely reference and the never following description of restriction in reading, and become clear with reference to after the accompanying drawing, wherein:
Fig. 1 is the sketch map of known electric contact device, comprises the unique removable contact that is presented in the off position;
Fig. 2 is the sketch map of Fig. 1 electrical contact equipment, and wherein unique removable contact elements is presented in the contact position;
Fig. 3 be according to the present invention first maybe execution mode first can select the electrical contact equipment of execution mode sketch map, comprise the unique removable contact that is presented in the off position;
Fig. 4 is the sketch map of Fig. 3 electrical contact equipment, and wherein unique removable contact elements is presented in the contact position;
Fig. 5 is the sketch map of the electrical contact equipment of the second possibility execution mode according to the present invention, comprises two removable contacts that are presented in the off position;
Fig. 6 is the sketch map of Fig. 5 electrical contact equipment, and wherein two removable contacts are presented in the contact position;
Fig. 7 be according to the present invention first maybe execution mode second can select the electrical contact equipment of execution mode view, wherein unique removable contact elements is presented in the off position;
Fig. 8 is the view of Fig. 7 electrical contact equipment, and wherein unique removable contact elements is presented in the contact position;
Fig. 9 is the view of the electrical contact equipment of the second possibility execution mode according to the present invention, and wherein two removable contacts are presented in the off position; And
Figure 10 is the view of Fig. 9 electrical contact equipment, and wherein two removable contacts are presented in the contact position.
As stated, the present invention relates to particularly be used in electrical contact equipment in the touch switch cutter.
Demonstrated the known device that the present invention will improve those types of the efficient that opens circuit among Fig. 1 and 2.
This equipment comprises fixed contact element 1, removable contact elements 2 and two current paths 31 and 32.
Be mounted with relative to each other movably current path 31 and 32 all be rigidity, promptly in its normal use, be not easy to stand tangible distortion, comprise within the scope of the invention.
Typically, these current paths 31 and 32 realize with the forms of rigid metal conductor, for example with the form of copper.
In known contact device; Through this removable contact elements 2 and current path 31 is installed with the mode of rotating around rotating shaft X simultaneously; Obtain removable contact elements 2 moving between its off position and its contact position, this removable contact elements 2 is connected to rigidly each other with this current path 31 and moves to stand identical rotation simultaneously.
In addition, current path 31 and 32 for example is electrically connected through the metal braid 6 of softness with being one another in series, with when 2 contacts of removable contact elements in 1 last time of fixed contact element, can be by identical electric current process.
Like what explained among the aforementioned patent EP1879204; Braid 6 connects current path 31 and 32; Thereby under the situation that electric current flows; These current paths are accepted electromagnetic force, and this electromagnetic force is corresponding to being applied to the couple on the current path 31 about rotating shaft X and being sent to removable contact elements 2 with the form of the supporting force of this removable contact elements 2 on the fixed contact element 1.
Yet; As observing simultaneously shown in Fig. 1 and 2; Current path 31 and 32 is longer and it is approaching more each other; Then the ultimate range between fixed contact element 1 and the removable contact elements 2 is just more little, thereby under high-tension situation, constitutes a threat to: contact device is as the gap effect, and thereby in configuration shown in Figure 1, no longer realizes its switching function.
For head it off; The present invention provides the rotating shaft X that removable contact elements 2 is installed on movable support member 41 about fixed contact element 1 especially in Fig. 3,4, first execution mode shown in 7 and 8, and realizes removable contact elements 2 moving between its off position and its contact position through strutting piece 41 about moving of fixed contact element 1.
On the one hand; Shown in the comparison of Fig. 1 and 3; And on the other hand, shown in the comparison of Fig. 2 and 4, the invention enables current path 31 and 32 is possible near reducing removable contact elements 2 each other and not about the stroke of fixed contact element 1 more; The invention enables increase this trip between current path 31 and 32, to keep identical distance to become possibility simultaneously perhaps of equal valuely.
But in first selection scheme of first execution mode shown in Fig. 3 and 4; Advantageously; Current path 32 is fixed about fixed contact element 1; And strutting piece 41 can be that in translation corresponding to the position of the off position of removable contact electric current and between corresponding to the position that is used for the position that removable contact electric current passes through movably this moves in Fig. 3 and is demonstrated by double-head arrow in shell.
Usually, electrical contact equipment comprises (Fig. 7 and 8) shell 5, and fixed contact element 1 is fixed to shell 5, makes strutting piece 41 in this shell 5, to install movably.
Can select in the execution mode at second of first execution mode shown in Fig. 7 and 8, electrical contact equipment only comprises an independent removable contact elements 2.Under this situation, advantageously, current path 32 is fixed about fixed contact element 1, and strutting piece 41 can for example be around axle 410 rotatable being installed in movably in the shell 5.
Fig. 9 and 10 has demonstrated the second possibility execution mode of the present invention, and wherein electrical contact equipment comprises two removable contact elements 21 and 22, and the operating principle of this second execution mode demonstrates in Fig. 5 and 6.
Except these two removable 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 removable about each other.
In first execution mode, removable contact elements 21 is all rotatably installed around identical rotating shaft X1 with current path 31, is connected to each other rigidly simultaneously, moves so that always stand identical rotation simultaneously.
With equivalence and symmetrical manner, removable contact elements 22 is all rotatably installed around identical rotating shaft X2 with current path 32, is connected to each other rigidly simultaneously, moves so that always stand identical rotation simultaneously.
In first execution mode; Current path 31 and 32 for example is electrically connected through soft metal braid 6 each other; To stand electromagnetic force under the situation that flows at electric current; This electromagnetic force changes into each supporting force on its corresponding fixed contact element 11 or 12 in these removable contact elements 21 and 22 through around these current paths and the corresponding rotating shaft X1 of the removable contact elements 21 that connects respectively and 22 and the rotation of X2.
In this execution mode, rotating shaft X1 is installed on the identical strutting piece 42 with X2, and strutting piece 42 is movably about in fixed contact element 11 and 12 each.
Through about fixed contact element 11 and 12 moveable supports 42, removable contact elements 21 and 22 thereby between its off position and its contact position, can move simultaneously.
In fact and shown in Fig. 9 and 10, rotating shaft X1 and X2 can be coaxial.
Comprise that at electrical contact equipment strutting piece 42 is installed in this shell 5 movably, preferably for the mode of this second execution mode with translation under the typical situation of fixed contact element 11 and 12 fixing shells 5 on it.
In each of two execution modes shown in Fig. 8 and 10, in each removable contact elements and configuration that corresponding fixed contact element contacts, current path 31 and 32 is parallel to each other basically.
In addition, in each of this two execution modes, current path 31 and 32 is electrically connected each other, and therefore identical electric current through current path 31 and 32, makes current path 31 and 32 stand the electromagnetic force that it is repelled each other with opposite direction.
Acting on this electromagnetic repulsive force on path 31 and 32 thereby having makes each removable contact elements 2,21 or 22 be pressed in the effect on respective fixation contact elements 1,11 or 12 around its rotating shaft X, X1 or X2 rotation and with it.
Claims (7)
1. electrical contact equipment; Electrical contact equipment in the touch switch cutter; And comprise at least fixed contact element (1), removable contact elements (2) and rigidity and about movably first current path and second current path (31,32) each other; Be movably about said fixed contact element (1) between the off position that the electric current of said removable contact elements (2) in stoping said first current path and said second current path (31,32) the flows contact position mobile with allowing electric current in said first current path and said second current path (31,32); Said removable contact elements (2) is rotatably installed around rotating shaft (X); Said first current path (31) is connected to said removable contact elements (2) rigidly with the mode around said rotating shaft (X) rotation; And said first current path and said second current path (31,32) are electrically connected each other; To stand electromagnetic force under the situation that flows at electric current; Said electromagnetic force is through being converted into the supporting force of said removable contact elements (2) on said fixed contact element (1) around said rotating shaft (X) the said removable contact elements of rotation (2,21); Said rotating shaft (X) is installed on the movable support member (41) about said fixed contact element (1), and through moving said strutting piece (41) about said fixed contact element (1), said removable contact elements (2) can move between its off position and its contact position; It is characterized in that: during said removable contact elements (2,21) moved about said fixed contact element (1,11), the distance between the said current path (31,32) kept constant.
2. electrical contact equipment according to claim 1 is characterized in that: said electrical contact equipment comprises shell (5), and said fixed contact element (1) is fixed to said shell (5).
According to before each described electrical contact equipment in the claim, it is characterized in that: said second current path (32) is fixed about said fixed contact element (1).
According to claim 2 combination before each described electrical contact equipment in the claim, it is characterized in that: said strutting piece (41) is rotatable to be installed in the said shell (5) movably.
According to claim 2 combination before each described electrical contact equipment in the claim, it is characterized in that: said strutting piece (41) is installed in the said shell (5) with translation mode movably.
According to before each described electrical contact equipment in the claim, it is characterized in that: said electrical contact equipment comprises the metal braid (6) of the softness that is electrically connected said first current path and said second current path (31,32).
According to before each described electrical contact equipment in the claim; It is characterized in that: said first current path and said second current path (31,32) are electrically connected to each other; Thereby identical electric current is with opposite direction said first current path of process and said second current path (31,32); And at the contact position of said removable contact elements (2), said first current path and said second current path (31,32) are parallel to each other basically.
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 true CN102760586A (en) | 2012-10-31 |
| CN102760586B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11694862B2 (en) | 2019-11-11 | 2023-07-04 | Defond Electech Co., Ltd. | Lock-off mechanism for locking-off a trigger assembly of an electric device |
Citations (6)
| 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 |
| WO1997027605A1 (en) * | 1996-01-22 | 1997-07-31 | Siemens Aktiengesellschaft | Electrical switching device |
| 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 |
-
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 (6)
| 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 |
| WO1997027605A1 (en) * | 1996-01-22 | 1997-07-31 | Siemens Aktiengesellschaft | Electrical switching device |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11694862B2 (en) | 2019-11-11 | 2023-07-04 | Defond Electech Co., Ltd. | Lock-off mechanism for locking-off a trigger assembly of an electric device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2518746A1 (en) | 2012-10-31 |
| FR2974660A1 (en) | 2012-11-02 |
| CN102760586B (en) | 2016-03-16 |
| EP2518746B1 (en) | 2018-07-18 |
| FR2974660B1 (en) | 2018-05-25 |
| PL2518746T3 (en) | 2019-01-31 |
| RU2012114088A (en) | 2013-10-20 |
| RU2598539C2 (en) | 2016-09-27 |
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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 |
Granted publication date: 20160316 |
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| CF01 | Termination of patent right due to non-payment of annual fee |