EP3465719A1 - Stiffened contact bar - Google Patents
Stiffened contact barInfo
- Publication number
- EP3465719A1 EP3465719A1 EP17734694.7A EP17734694A EP3465719A1 EP 3465719 A1 EP3465719 A1 EP 3465719A1 EP 17734694 A EP17734694 A EP 17734694A EP 3465719 A1 EP3465719 A1 EP 3465719A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- contact rod
- cavity
- rod material
- rod
- 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
- 239000000463 material Substances 0.000 claims abstract description 127
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000002041 carbon nanotube Substances 0.000 claims description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002990 reinforced plastic Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 241001676573 Minium Species 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
- H01H33/6643—Contacts; Arc-extinguishing means, e.g. arcing rings having disc-shaped contacts subdivided in petal-like segments, e.g. by helical grooves
Definitions
- the invention relates to a stiffened contact rod, in particular a stiffened contact rod for vacuum switch ⁇ tubes, and to a method for producing such a stiffened contact rod, in particular for vacuum interrupters.
- Contact rods are known from the prior art, in particular ⁇ special contact rods for vacuum interrupters, which are formed due to the good electrical and thermal conductivity of copper. With long contact bars and with expected high mechanical stresses, there can be considerable problems with the dimensional stability of the contact bars. Since in particular in the production of vacuum interrupters a closure brazing takes place, in which the contact rod is soldered with ver ⁇ or is at least heated, it comes with the contact rods made of copper to an unavoidable soft annealing of the contact rods.
- the object of the invention is therefore to remedy the disadvantages of the prior art and to provide a stiffened contact rod with high thermal and electrical conductivity.
- the contact rod for a switch has a first contact rod portion with a first contact rod material.
- the first contact rod material ER- extends in the first contact bar area of a first end portion of the contact rod to a second Endab ⁇ section of the contact bar, wherein the second end portion of the contact rod is adjacent to a contact body or merges into it.
- the first contact with the first rod portion is con- tact rod material made hollow and thus forms a ⁇ ers th cavity.
- a second contact rod material is introduced, which forms a second Maisstabbe ⁇ rich, wherein the second contact bar material is stiffer than the first contact rod material.
- the term "stiffer” in the context of this application refers to the mechanical stiffness of a material, ie also to the flexural rigidity, the torsional rigidity and / or expansion stiffness. accuracy. For example, steel has a higher rigidity than copper.
- the second contact rod material is at least 1/6 stiffer, more preferably by 1/3 stei ⁇ fer than the first contact rod material.
- the first contact rod portion with the first contact rod material has the shape of a cylinder or hollow cylinder or partially hollow cylinder.
- Hollow cylinder in particular in the hollow region, ie in the inner region, also have one or more steps and / or have sloping surfaces which form such conically converging and / or conically diverging structures in the inner region of the hollow cylinder. It should be understood that convergence means that the surfaces do not have to touch during convergence, but they can.
- the second contact rod portion is formed with the second contact rod material as a cylinder or hollow cylinder or partially hollow cylinder.
- the outer side of the second contact rod region is designed with the second contact rod material such that the second contact rod material can be inserted or pressed into the first contact rod material.
- the outer shape of the second contact rod region with the second contact rod material completely or partially nachbil ⁇ det the shape of the first cavity of the first contact rod portion with the first contact rod material.
- the second contact bar material Alu ⁇ minium, an aluminum alloy, steel, stainless steel, an art is material and / or reinforced with carbon nanotubes metal.
- the second contact ⁇ rod material is a reinforced plastic, such as a glass fiber reinforced plastic or reinforced with metals plastic.
- first cavity in the first end portion opens and / or the first cavity into the two ⁇ th end portion opens. It is further preferred that the first cavity opens into the first end section such that the second contact rod material can be inserted or pressed in through the opening into the first contact rod region with the first contact rod material.
- under pressing is to be understood not only the purely mechanical pressing see, but also an injection of a injectable material, particularly a Kunststoffstof ⁇ fes and / or reinforced plastic, to be understood in the first cavity.
- the second contact rod material completely or partially fills the first cavity of the first contact rod material.
- the second contact rod material is fixed in the first cavity of the first contact rod material.
- the second contact bar material may also be introduced only into the first contact rod material or introduced without directly buildin ⁇ is saturated when the first contact rod material. Indirect attachment is possible through the connection of the first contact rod material with other components of the switch, but not necessary.
- the second contact rod material be secured in the first cavity of the first contact rod material by means of insertion or screwing or gluing or soldering or welding or riveting or at least one combination of the foregoing. It is also preferred that the second contact rod region has a second cavity with the second contact rod material. It is also preferred that in the second cavity, a third contact rod material is provided, which has a higher electrical ⁇ specific conductivity and / or thermal conductivity than the second contact bar material. It is further preferred that the third contact rod material is a twisted conductor material.
- the twistedhuisma ⁇ TERIAL is formed of copper is preferred.
- the twisted line material is a twisted copper line.
- Another embodiment is a method for Her ⁇ provide a contact rod, the contact rod having a first contact rod portion having a first contact rod material of to a second end of the contact rod he stretches ⁇ from a first end portion of the contact ⁇ rod.
- the second end portion of the contact rod is connected or connectable to a contact body.
- the first contact rod portion with the first contact rod material is hollow and thus forms a first cavity and / or a first cavity is created or formed by machining.
- a second contact ⁇ rod material is introduced and forms a second contact rod area.
- the second contact rod material is stiffer than the first contact rod material. So the second Druckstabma ⁇ TERIAL has a higher rigidity. It is particularly preferred that the second contact rod material is at least 1/6 stiffer, more preferably 1/3 stiffer than the first contact rod material.
- the second contact rod material is aluminum, an aluminum alloy, steel, stainless steel, plastic and / or carbon nanotube reinforced metal.
- the second contact ⁇ rod material is a reinforced plastic, such as a glass fiber reinforced plastic or reinforced with metals plastic.
- the first cavity opens into the first end portion and / or the first cavity opens into the two ⁇ th end portion.
- first cavity opens into the first end portion and that the second contact rod material is introduced or pressed through the mouth in the first contact rod portion with the first contact rod material.
- the second contact rod material is secured in the first cavity of the first contact rod region with the first contact rod material.
- the second contact rod material be secured in the first cavity of the first contact rod region with the first contact rod material by means of press-fitting or screwing or gluing or soldering or welding or riveting or combinations thereof.
- the second contact rod region has a second cavity with the second contact rod material.
- a third contact rod material is introduced or pressed, which has a higher electrical conductivity and / or thermal conductivity than the second contact rod material. It is also preferred that the third contact rod material is a twisted line material and this twisted Lei ⁇ treatment material is inserted or pressed into the second cavity.
- the twistedhuisma ⁇ TERIAL is a twisted copper line.
- FIG. 1 contact rod with contact body from the state of
- Figure 2 contact rod with a stainless steel sleeve of the prior art
- FIG. 3 shows an exemplary embodiment of an inventive con ⁇ stroke rod with a contact body
- FIG. 4 shows an exemplary embodiment of a method according to the invention for producing a contact rod
- Figure 5 Embodiment of an inventive con ⁇ clock rod with contact body.
- FIG. 1 shows a contact rod 1 which has a contact body 2 with a contact plate 3.
- Figure 1 is divided into two areas. The upper area A shows a
- the contact rod has a first diameter 5 of the first contact rod material.
- the drawn longitudinal axis LA is in this embodiment ⁇ example, a rotational symmetry axis of the contact rod.
- 1 About the recess 17 in the contact rod 1, the contact rod can be contacted and / or attached and / or connected to another component of the switchgear.
- 2 shows a contact rod 1 from the prior Tech ⁇ technology that has to stiffen over an outer steel sleeve. 7 These steel sleeve 7 serves to stiffen the contact ⁇ rod made of copper 9. During a manufacturing method for such Kon ⁇ clock rod, it is advantageous if during the VerBanklö ⁇ least the steel sleeve 7 or the steel sleeve 7 and the contact ⁇ rod of copper 9 having a Weight 8 are applied.
- FIG. 2 furthermore shows a contact body 2 with a contact plate 3 adjoining one end of the contact rod made of copper.
- the contact body 2 has slits 4 for the control of potentially occurring during a switching process Lichtbö ⁇ gene. These slots 4 are preferably continued in the contact plate 3. Such slots are also shown in the other figures, but not further specified. Also, the figure 2 is divided into two areas A, B, wherein the upper portion A again shows a section through a contact rod, while the lower portion B shows a side view indicated by dashed lines internal structure of a contact body 2 with a contact plate 3.
- the drawn longitudinal axis LA is a rotational symmetry axis of the contact rod ⁇ . 1
- FIG. 3 shows an embodiment of a contact rod 1 of invention according to a secured to the second end portion of the contact rod contact body 2 having a contact ⁇ sheet.
- FIG. 3 is again subdivided into two regions A, B, where the top section A shows the contact rod 1 according to the invention in a sectional view, while the section B shows a side view with an indicated internal structure of the contact body 2 with contact plate 3.
- the drawn longitudinal axis LA can also be a rotational symmetry axis of the contact rod 1 in a preferred exemplary embodiment.
- the contact rod 1 may also have a different shape from a rotary body, such as a cuboid or other geometric shapes.
- the contact rod 1 in the figure 3 comprises a first contact ⁇ rod material 11 in a first contact rod portion which has a cavity 15 shown in Figure 4, in which the second contact rod material 12, which forms a second contact rod ⁇ area, is introduced.
- the first cavity 15 in the first contact rod material 11 here has a second diameter 14 which is smaller than the first diameter 5 of the first contact rod material 11.
- the second contact rod material 12 is chosen so that it has a higher rigidity than the first contact ⁇ rod material 11th
- the second contact rod material 12 has, at the first end portion of the contact rod 1, a recess 13 which extends into the second contact rod material 12.
- the recess 13 is designed such that the opening at the first end portion is smaller than the diameter 14 of the second contact rod material 12th
- the reference numerals for the first contact rod material 11 be ⁇ draw at the same time the first contact bar area and the reference numerals for the second contact rod material 12 loading at the same time also draw the second contact rod area.
- the first and second contact rod area are therefore not additionally marked in figures.
- the terms contact ⁇ rod material and contact rod area can therefore also be replaced with each other.
- the Ausneh ⁇ mung suitable 13 anläge the contact rod 1 with an electrical ⁇ rule contact of an electrical switch, not shown here to join and / or to hold the contact rod 1 and / or with a kinematic connect.
- the recess 13 has an internal thread - not shown here - on.
- FIG. 4 shows a manufacturing step for an OF INVENTION ⁇ to the invention contact rod 1.
- Figure 4 is again divided into the two areas A, B.
- the upper section A shows ei ⁇ NEN section through the contact rod 1.
- the second area B is a side view of the contact element 2 with a contact ⁇ timing disc 3 and the direction indicated by dashed lines internal structure of the contact body.
- the second contact bar material 12 is inserted with a recess 13 through an opening in the first end portion of the first Druckstabma ⁇ terials 11 in the first cavity 15 of the first contact rod ⁇ materials.
- the skilled person may provide various apparatus to allow leakage of the first present in the cavity 15 of the media, such as air.
- holes or grooves in the first contact rod material 11 or in the second contact rod material 12 are suitable.
- Such Vorrich ⁇ lines are not shown in the figure 4.
- the longitudinal axis LA of the contact rod 1 shown in FIG. 4 can also be a rotational symmetry axis of the contact rod 1.
- FIG. 5 shows a further exemplary embodiment of a contact rod 1 according to the invention with a contact body 2 with a contact plate 3.
- FIG. 5 is again divided into two areas, A and B.
- the upper section A is again a section through an inventive contact bar 1
- the lower Be rich ⁇ B shows a side view of the contact body 2, with a contact plate.
- 3 In the case of Figure 5, in addition to the firstmaschinestabmate ⁇ rial 11, and the second contact rod material 12 a hollow ⁇ space, hereinafter second cavity 16, on.
- the second cavity 16 makes it possible that also this inner region of the contact rod 1 with a material having high thermal conductivity and electrical conductivity can be ge ⁇ filled.
- the drawn longitudinal axis LA can also be a rotational symmetry axis of the contact rod 1 in a preferred exemplary embodiment.
- FIG. 6 shows a further exemplary embodiment of a contact rod 1 according to the invention having a first contact rod material 11 and a second contact rod material 12 which has been introduced into a cavity of the first contact rod material 11.
- the figure 6 into two areas, A and B, divided, wherein the upper area A shows a section through the contact bar 1, while the lower area B is a side view of
- Contact body 2 with the contact plate 3 shows, wherein the in ⁇ nere structure of the contact body 2 is indicated by dashed lines. Notwithstanding the previous examples, the contact rod 1 has a recess 18, which has a greater extent perpendicular to the longitudinal axis LA than the second contact rod material 12th
- the second contact ⁇ rod material 12 may be formed in the form of a body with two different ⁇ different extensions perpendicular to the longitudinal axis LA, so that the second contact rod material 12 both the first cavity (not shown here) in the first contact rod 11th
- the second contact rod material 12 in the region of the first end portion also has a recess which vorzugswei ⁇ se has a thread for receiving a contact, support and / or support.
- the shape of the second contact rod material is thus formed, for example, by two or more cylinder shapes and / or hollow cylinder shapes having different diameters and / or wall thicknesses.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016213294.6A DE102016213294B4 (en) | 2016-07-20 | 2016-07-20 | Stiffened contact rod and method of making a contact rod |
PCT/EP2017/065633 WO2018015106A1 (en) | 2016-07-20 | 2017-06-26 | Stiffened contact bar |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3465719A1 true EP3465719A1 (en) | 2019-04-10 |
EP3465719B1 EP3465719B1 (en) | 2020-07-29 |
Family
ID=59270009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17734694.7A Active EP3465719B1 (en) | 2016-07-20 | 2017-06-26 | Stiffened contact bar |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3465719B1 (en) |
CN (1) | CN109478481B (en) |
DE (1) | DE102016213294B4 (en) |
WO (1) | WO2018015106A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109036949A (en) * | 2018-08-31 | 2018-12-18 | 陕西宝光真空电器股份有限公司 | A kind of vacuum interrupter conducting rod and its processing method |
DE102020212377A1 (en) | 2020-09-30 | 2022-03-31 | Siemens Aktiengesellschaft | Compact vacuum interrupter |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL152107B (en) * | 1972-10-02 | 1977-01-17 | Hazemeijer Bv | VACUUM SWITCH. |
JP3219483B2 (en) * | 1992-09-18 | 2001-10-15 | 株式会社東芝 | Vacuum valve |
JP3215181B2 (en) * | 1992-09-24 | 2001-10-02 | 株式会社東芝 | Vacuum valve |
CN2288518Y (en) * | 1996-09-10 | 1998-08-19 | 王净秉 | Grounding rod |
JP4770903B2 (en) * | 2008-10-02 | 2011-09-14 | 富士電機機器制御株式会社 | Contact structure of vacuum valve and manufacturing method thereof |
JP5281975B2 (en) * | 2009-07-08 | 2013-09-04 | 三菱電機株式会社 | Vacuum valve |
DE102010011614B4 (en) * | 2010-03-16 | 2021-11-18 | Phoenix Contact Gmbh & Co. Kg | Contacting device |
US8445805B2 (en) * | 2011-01-07 | 2013-05-21 | Michael David Glaser | Vacuum switch with pre-insertion contact |
DE102012101222A1 (en) | 2011-12-21 | 2013-06-27 | Alutec Metal Innovations Gmbh & Co. Kg | Contact pin for high-voltage circuit breaker and high-voltage circuit breaker with such a contact pin |
US20140048514A1 (en) * | 2012-08-20 | 2014-02-20 | Ganesh K. Balasubramanian | Contact assembly and vacuum switch including the same |
CN103871775B (en) * | 2012-12-14 | 2016-05-11 | 伊顿公司 | Vacuum interrupter and the vacuum circuit breaker with vacuum interrupter |
JP6093936B2 (en) * | 2013-08-08 | 2017-03-15 | 株式会社日立産機システム | Vacuum valve for vacuum switch gear |
CN104970873A (en) * | 2015-07-07 | 2015-10-14 | 创辉医疗器械江苏有限公司 | Connecting rod with stiffness changeable |
-
2016
- 2016-07-20 DE DE102016213294.6A patent/DE102016213294B4/en not_active Expired - Fee Related
-
2017
- 2017-06-26 CN CN201780044727.1A patent/CN109478481B/en active Active
- 2017-06-26 WO PCT/EP2017/065633 patent/WO2018015106A1/en unknown
- 2017-06-26 EP EP17734694.7A patent/EP3465719B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2018015106A1 (en) | 2018-01-25 |
DE102016213294B4 (en) | 2018-09-13 |
CN109478481B (en) | 2020-11-06 |
EP3465719B1 (en) | 2020-07-29 |
CN109478481A (en) | 2019-03-15 |
DE102016213294A1 (en) | 2018-01-25 |
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