CN102299006A - Magnetic contacts with multi-point contact - Google Patents
Magnetic contacts with multi-point contact Download PDFInfo
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- CN102299006A CN102299006A CN2011101322973A CN201110132297A CN102299006A CN 102299006 A CN102299006 A CN 102299006A CN 2011101322973 A CN2011101322973 A CN 2011101322973A CN 201110132297 A CN201110132297 A CN 201110132297A CN 102299006 A CN102299006 A CN 102299006A
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- contact
- moving
- static
- magnetic
- permanent magnets
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- 239000002184 metal Substances 0.000 claims abstract description 8
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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Abstract
The invention relates to a magnetic contact with multi-point contacts. The magnetic contact is an electrical contact; and a static contact of the electrical contact is processed into a plane shape and a moving contact is processed by a bundle of dense and flexible metal filaments. When the electrical contact is in a closing state, one end of the bundle of dense and flexible metal filaments that is taken as the moving contact is contacted with the plane static contact and it is ensured that each the filament is contacted at a right position, so that a plurality of effective contact points are formed. In addition, two permanent magnets are respectively fixed at sides of the static contact and the moving contact in parallel, so that magnetic forces are mutually attracted; moreover, when the contact is in a closing state, there is certain gap between the two permanent magnets, so that the moving contact and the static moving can be contacted reliably and there is certain contact pressure. Compared with a normal electrical contact, the magnetic contact provided in the invention has an enough effective contact area; moreover, the contact pressure can be maintained to be constant and the contact is not easy to heat, so that reliability of power supply can be improved.
Description
Technical field
The present invention relates to a kind of electrical contact, especially relate to a kind of magnetic force contact of multiple spot contact.
Background technology
At present, the contact form of electrical contact can be divided into a contact, the line contact contacts several with face, no matter which kind of contact form, because the restriction of process technology, contact-making surface can not be accomplished absolute level and smooth, therefore, and from the angle of microcosmic, it effectively contacts still some contact, and promptly the gross area that effectively contacts still embodies by a contact.In order to increase effective contact area, high-voltage large current electrical contact in practice often adopts cutter formula or plum blossom finger-contact type, the electrical contact of these forms, in when work because the continuous oxidation of electrical contact, contact gets an electric shock indirectly, and resistance is continuous to increase, the contact heating is also generated heat for contact provides the annex spring of contact pressure thereupon, and contact presses power indirectly and descends, cause contact resistance further to increase, form vicious circle, finally make electrical contact damage, power supply trouble takes place.
Summary of the invention
In order to overcome the problem that the effective contact area of conventional electrical contact is not enough and contact pressure descended with running time, the invention provides a kind of magnetic force contact of multiple spot contact, it can not only provide with conventional electrical contact and compare, bigger effective contact area under the same size situation, contact is pressed indirectly try hard to keep hold constant.
The technical scheme that technical problem adopted that the present invention solves is: the fixed contact of electrical contact is processed into planar shaped, moving contact is processed by a branch of intensive flexible metal filament, contact is when "on" position, this end of restrainting the flexible metal filament as moving contact contacts with the fixed contact of plane, and guaranteeing that every filament all will contact puts in place, thereby forms numerous effective contact points.In addition, fix two blocks of permanent magnets other the walking abreast of dynamic and static contact respectively, its magnetic force is attracted each other, and will make contact when "on" position, dynamic and static contact also has certain clearance between two blocks of permanent magnets, so that can reliably contact and have certain contact pressure.
The invention has the beneficial effects as follows, compare with conventional electrical contact, the present invention has bigger effective contact area under the same size situation, contact is pressed indirectly try hard to keep to hold constantly, and contact is difficult for heating like this, even heating, intensive flexible metal filament can become softer, and under the effect of magnetic force, the contact contact can be tightr, thereby can guarantee that contact can move safely and reliably, improve the reliability of power supply.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is that the present invention is applied in the high pressure disconnecting link and disconnecting link is in the schematic diagram of gate-dividing state.
Fig. 2 is that the present invention is applied in the high pressure disconnecting link and disconnecting link is in the schematic diagram of "on" position.
1. moving contacts among Fig. 1, Fig. 2,2. fixed contact, 3. permanent magnet, 4. terminal block, 5. post insulator, 6. firm banking, 7. switch operation ring.
Embodiment
Among Fig. 1, fixed contact (2) is processed into planar shaped, and moving contact (1) is processed by a branch of intensive flexible metal filament.Among Fig. 2, moving contact (1), fixed contact (2) are when "on" position, and end that moving contact (1) is gone up this bundle flexible metal filament contacts with the fixed contact (2) of plane, and guarantee that every filament all will contact and put in place, thereby form numerous effective contact points.In addition, respectively at moving contact (1), the other parallel two blocks of permanent magnets (3) of fixing of fixed contact (2), its magnetic force is attracted each other, and make moving contact (1), fixed contact (2) after the contact of closing a floodgate puts in place, dynamic and static contact also has certain clearance between two blocks of permanent magnets (3), so that can reliably contact and have certain contact pressure.Because the sucking action of permanent magnet is arranged, and moving contact (1), fixed contact (2) can closely contact when "on" position.During sub-switching operation, only the attraction that need overcome between permanent magnet (3) gets final product.
Claims (4)
1. the magnetic force contact of multiple spot contact is made up of fixed contact, moving contact and two blocks of permanent magnets, it is characterized in that: fix two blocks of permanent magnets other the walking abreast of dynamic and static contact respectively, and magnetic force is attracted each other.
2. the magnetic force contact of multiple spot contact according to claim 1, it is characterized in that: the fixed contact of electrical contact is processed into planar shaped.
3. the magnetic force contact of multiple spot contact according to claim 1, it is characterized in that: moving contact is processed by a branch of intensive flexible metal filament.
4. the magnetic force contact of multiple spot contact according to claim 1 is characterized in that: contact also has certain clearance between two blocks of permanent magnets when "on" position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101322973A CN102299006A (en) | 2011-05-11 | 2011-05-11 | Magnetic contacts with multi-point contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101322973A CN102299006A (en) | 2011-05-11 | 2011-05-11 | Magnetic contacts with multi-point contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102299006A true CN102299006A (en) | 2011-12-28 |
Family
ID=45359345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101322973A Pending CN102299006A (en) | 2011-05-11 | 2011-05-11 | Magnetic contacts with multi-point contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102299006A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915293A (en) * | 2013-01-06 | 2014-07-09 | 北海市深蓝科技发展有限责任公司 | Jitter-free relay contact head structure |
| CN103915292A (en) * | 2013-01-06 | 2014-07-09 | 北海市深蓝科技发展有限责任公司 | Jitter-free electromagnetic relay |
| CN110970237A (en) * | 2019-12-30 | 2020-04-07 | 宜宾凯翼汽车有限公司 | Automobile high-voltage power supply disconnecting device |
| DE102022205868A1 (en) | 2022-06-09 | 2023-12-14 | Siemens Energy Global GmbH & Co. KG | Switching device for opening and closing a current path |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859796Y (en) * | 2006-01-23 | 2007-01-17 | 褚鹏坤 | Push-button magnetic switch |
| CN201229860Y (en) * | 2008-07-21 | 2009-04-29 | 上海第二工业大学 | Contact system for limit switch |
| JP2009152024A (en) * | 2007-12-20 | 2009-07-09 | Yaskawa Electric Corp | Reed switch |
-
2011
- 2011-05-11 CN CN2011101322973A patent/CN102299006A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859796Y (en) * | 2006-01-23 | 2007-01-17 | 褚鹏坤 | Push-button magnetic switch |
| JP2009152024A (en) * | 2007-12-20 | 2009-07-09 | Yaskawa Electric Corp | Reed switch |
| CN201229860Y (en) * | 2008-07-21 | 2009-04-29 | 上海第二工业大学 | Contact system for limit switch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915293A (en) * | 2013-01-06 | 2014-07-09 | 北海市深蓝科技发展有限责任公司 | Jitter-free relay contact head structure |
| CN103915292A (en) * | 2013-01-06 | 2014-07-09 | 北海市深蓝科技发展有限责任公司 | Jitter-free electromagnetic relay |
| CN110970237A (en) * | 2019-12-30 | 2020-04-07 | 宜宾凯翼汽车有限公司 | Automobile high-voltage power supply disconnecting device |
| DE102022205868A1 (en) | 2022-06-09 | 2023-12-14 | Siemens Energy Global GmbH & Co. KG | Switching device for opening and closing a current path |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130125 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20130125 Address after: 441300 Suizhou power supply company, No. 91, Qingnian Road, Hubei, Suizhou Applicant after: Suizhou Power Supply Company of Hubei Electric Power Company Applicant after: State Grid Corporation of China Address before: 441300 Suizhou power supply company, No. 91, Qingnian Road, Hubei, Suizhou Applicant before: Suizhou Power Supply Company of Hubei Electric Power Company |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111228 |