WO2002017343A1 - Disjoncteur - Google Patents

Disjoncteur Download PDF

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Publication number
WO2002017343A1
WO2002017343A1 PCT/JP2000/005526 JP0005526W WO0217343A1 WO 2002017343 A1 WO2002017343 A1 WO 2002017343A1 JP 0005526 W JP0005526 W JP 0005526W WO 0217343 A1 WO0217343 A1 WO 0217343A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
phenyl ether
oil
iron
molybdenum disulfide
Prior art date
Application number
PCT/JP2000/005526
Other languages
English (en)
Japanese (ja)
Inventor
Hitoshi Ito
Koji Hikake
Hiroyuki Kakisako
Susumu Takahashi
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to EP00953482A priority Critical patent/EP1229566B1/fr
Priority to CNB00814317XA priority patent/CN1233010C/zh
Priority to JP2002521318A priority patent/JP4445197B2/ja
Priority to DE60035521T priority patent/DE60035521T2/de
Priority to PCT/JP2000/005526 priority patent/WO2002017343A1/fr
Priority to TW089117343A priority patent/TW464895B/zh
Publication of WO2002017343A1 publication Critical patent/WO2002017343A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/18—Ethers, e.g. epoxides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/22—Compounds containing sulfur, selenium or tellurium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/62—Lubricating means structurally associated with the switch
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/08—Inorganic acids or salts thereof
    • C10M2201/084—Inorganic acids or salts thereof containing sulfur, selenium or tellurium
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
    • C10M2207/0406—Ethers; Acetals; Ortho-esters; Ortho-carbonates used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/16—Dielectric; Insulating oil or insulators
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/17—Electric or magnetic purposes for electric contacts

Definitions

  • the present invention relates to a circuit breaker in which an opening / closing mechanism for opening / closing a movable contact is accommodated in an insulating case.
  • Japanese Patent Application Laid-Open No. H11-112888 discloses that a movable contact is brought into and out of contact by a handle operation, and a trip portion is provided when an overcurrent is applied.
  • a circuit breaker in which an opening / closing mechanism for actuating a movable contact to separate the movable contact is accommodated in an insulating case.
  • Most of the opening and closing mechanism portion Ri Contact formed Ri by the iron was nitrided cold-rolled steel sheet, mineral oil and effect to the F e 3 0 4 layer or dark-outs provided the surface at its sliding portion Lubricating oil / grease based on rib synthetic hydrocarbon oil is lubricated or applied.
  • the switching mechanism and the insulation case tend to be downsized.
  • the opening and closing mechanism tends to be smaller than before.
  • the temperature inside the insulation case and the opening / closing mechanism during energization increases compared to conventional circuit breakers with the same rating, and mineral oil or aliphatic synthetic carbon is used.
  • Lubricating oils and greases based on hydrogen oil are easily oxidized and deteriorated.
  • the opening / closing mechanism is downsized, its components are downsized and the space between the components is narrowed. As a result, the lubricating oil and grease are thinned, and they are easily oxidized and deteriorated. In addition, they are more likely to stick during oxidative degradation.
  • Japanese Patent Application Laid-Open No. Hei 7-199018 discloses a refrigeration cycle having a compressor. Then, polyphenyl ether, which is incompatible with the refrigerant for the compressor, as a lubricating oil for the compressor, and molybdenum disulfide, tantalum disulfide as its additives. It is disclosed to add tungsten, graphite fluoride, polytetrafluoroethylene, and the like.
  • the compressor is not only different in technical field from the circuit breaker, but also the lubricating oil for the compressor has the characteristics required for the mechanical parts of the circuit breaker, especially at high temperatures. Since the oxidation resistance during use is different, the present invention cannot be derived.
  • the present invention has been made to solve the above-described problem, and has as its object to obtain a circuit breaker that is excellent in lubricating heat resistance and oxidation resistance of an opening / closing mechanism and has stable operation for a long period of time. I do.
  • a circuit breaker according to the present invention includes an insulating case, an opening / closing mechanism that is housed in the insulating case and opens and closes the movable contact, and an engaging portion that engages with the opening / closing mechanism. And a trip mechanism for releasing the engagement of the engaging portion when the current is detected and separating the movable contact from the fixed contact, wherein a part of the opening / closing mechanism is iron.
  • a circuit breaker formed of a material containing an iron compound, wherein a phenyl ether-based lubricant to which an antioxidant is added is applied to a sliding portion of the above-mentioned material containing iron or an iron compound.
  • the heat resistance and oxidation resistance of the lubrication of the opening and closing mechanism are excellent, and the operation is stable for a long time. Also, the sliding portion of the material containing iron or iron compound, the F e 3 0 4 layer or main tree key film is provided, oxidative degradation promoting action on full Wenirueteru based lubricant with a metal catalytic action of iron Is suppressed.
  • the phenyl ether-based lubricant is a phenyl ether-based oil, it can be lubricated, and it is easy to impart lubricity to the sliding parts of the mechanism, which is being miniaturized.
  • molybdenum disulfide is added to the phenyl ether type oil, so that a thick oil film can be easily maintained and the oxidation resistance is further improved, and lubrication such as load resistance and durability is maintained. Also excellent in properties.
  • molybdenum disulfide is 1.0 to 5.0 wt%, it is possible to maintain both oil film thickness excellent in oxidation resistance and dispersion stability of molybdenum disulfide.
  • the phenyl ether lubricant is a phenyl ether grease containing a urea-based increasing agent, it has excellent shape retention at high temperatures, and therefore has an acid resistance to the lubrication of the opening / closing mechanism. It has excellent lubricity and stable operation over the long term, and also has excellent lubricity.
  • FIG. 1 is a perspective view of a circuit breaker according to Embodiment 1 of the present invention.
  • FIG. 2 is a sectional view taken along the line II-II of the circuit breaker shown in FIG.
  • FIG. 3 is a diagram showing evaluation results of the lubricating oil according to Example 1 of the present invention.
  • FIG. 4 is a diagram showing the evaluation results of the grease according to the first embodiment of the present invention.
  • FIG. 5 is a diagram showing the lubricating oil and the lubrication according to the second embodiment of the present invention when the grease withstands a load. It is a figure showing a characteristic. BEST MODE FOR CARRYING OUT THE INVENTION
  • Embodiment 1 Embodiment 1
  • FIG. 1 is a perspective view of a circuit breaker according to Embodiment 1 of the present invention
  • FIG. 2 is a cross-sectional view of the circuit breaker of FIG. 1 taken along a line II-II.
  • reference numeral 1 denotes an insulating case formed of an insulating resin material.
  • 2 is a fixed contact fixed to the base la
  • 3 is a movable contact that is opened and closed by an opening and closing mechanism
  • 4 is formed of an insulating resin material.
  • 11 is a latch 12 at one end and a trip bar 19 at the other end.
  • the latch that engages with the lever 13 is always urged counterclockwise by the urging spring (not shown) around the coupling pin 12a, and the latch that engages with the lever 13 Is a toggle link consisting of the lower link connected to the insulation holder 4 and the upper link connected to the lower link by the lever 16 and the connecting pin 15b, and 16 is the upper link.
  • the connecting pin 15b of the lower link and the knob arm 23 fixing the knob 22 And 17 are provided on the electric circuit between the flexible stranded wire 25 connected to the movable contact 3 and the external terminal 26, and are deformed by heat generated in accordance with the current flowing through the electric circuit.
  • the metal 18 is provided on the electric circuit between the flexible stranded wire 25 connected to the movable contact 3 and the external terminal 26, and is energized when the electric current of the electric circuit exceeds a predetermined value.
  • Electromagnetic device operated by magnetic force in response to electric current, 19 is always A bias is turned counterclockwise by the biasing panel, and when overcurrent flows through the circuit, the trip rotates clockwise due to the operation of the bimetal 17 or the electromagnetic device 18.
  • Reference numeral 20 denotes an open / close contact provided at one end of the fixed contact 2 and the movable contact 3.
  • the force injuries 11, the latches 12 and the levers 13 are pivotally supported on iron frame by the pins lla, 12a, 15a, 15b, and 19a. Have been.
  • the no metal 17 or the electromagnetic device 18 rotates the trip bar 19 to release the lock between the force injuries 11 and the latches 12, and the latches.
  • the lock of the lever 13 is released, and the energy stored in the main panel 16 opens and closes the switching contact 20 to cut off the current.
  • the reset operation resets the locking of the power injuries 11, the latches 12, and the levers 13 and closes the on / off contact 20.
  • it is configured so as to be prepared for the current interruption again.
  • the opening / closing mechanism A that opens and closes the movable contact 3 includes an iron plate frame, a handle arm 23, a handle 22, a reno 13, and (a toggle link 15 and a main panel 16). It consists of a toggle link mechanism.
  • an engaging portion B which engages with the opening / closing mechanism portion A by the latch is constituted by a force damper 11 and a latch 12.
  • the releasing portion C for releasing the latching portion of the engaging portion: B is connected to the bimetal 17, the electromagnetic device 18, and the trip bar 18. It is composed of
  • the above-mentioned frames, force injuries 11, latches 12, levers 13, toggle links 15, etc. are usually formed by pressing low-carbon steel cold-rolled steel plates (SPCC-SD). It has been subjected to nitriding (gas nitrocarburizing) for the purpose of surface hardening, strength improvement and protection.
  • the lubricating oil used in the first embodiment was composed of 93 to 98.9 t% of alkyl diphenyl ether oil as a base oil and 1 to 5 wt% of molybdenum disulfide as an additive. And 0.1 to 2% by weight of an antioxidant as an additive.
  • Alkyl diphenyl ether is based on either dialkyl diphenyl ether or monoalkyl diphenyl ether and has a viscosity of 80 to 150 mm 2 / s. (40 ° C)
  • molybdenum disulfide (average particle size 0.5 ⁇ m) for oil film retention. Molybdenum disulfide is preferred because it also acts as a solid lubricant.
  • Antioxidants are aromatic amines or phenols, for example, For example, phenyl- ⁇ -naphthylamine, phenothiazine, and phenol-based 2,6-di-tert-butylparacresol, 2,6-di-phenylamine — Tert-butyl ether, 6-tert-butyl 10-cresol and the like.
  • the circuit breaker is composed of a shaft pin 11a, 12a, 15a, 15b, 19a, a bearing portion, a force barrier 11, a latch 12, Apply the following grease to the sliding part by lever 13 and toggle link 15 as shown below.
  • Grease is a semi-solid lubricant consisting of a liquid lubricant (base oil) and a thickening agent.
  • the lubricant used in the present embodiment is composed of 77 ⁇ 0 to 97 ⁇ 8 wt% of an alkyldiphenyl ether oil as a base oil, and a urea-based powder as a thickening agent. ⁇ 20 wt%, 0.2 to 3 wt% of antioxidant as an additive, and 88.0 to 94.0 wt% of alkyldiphenyl ether oil as a base oil, preferably The amount of urea is 5 to 10 wt% as a thickener, and the amount of antioxidant is 1.0 to 2.0 wt% as an additive.
  • phenyl ether-based grease particularly grease using urea-based stone, had excellent oxidation resistance at high temperatures.
  • the urea-based stone has excellent shape retention at high temperatures, and is less likely to lose its shape and has a smaller film thickness than general-purpose lithium-based stone, which has poor heat resistance. It is presumed to be bad. That is, it is presumed that when the thickness of the applied film is large, the actual volume becomes large, so that the oxidation time is lengthened and the oxidation resistance is improved. It is also assumed that the thicker the oxide film, the easier the molecules that make up the base oil to move, and the better the oxidation resistance as compared to a thin film in which the molecules tend to stay.
  • Grease is a grease containing alkyl diphenyl ether oil as a base oil and an agent to increase rare earth stones.
  • Alkyl diphenyl ether oils contain either dialkyl diphenyl ether or monoalkyl diphenyl ether as a main component.
  • Antioxidants are aromatic amines or phenols.
  • amines include phenyl or naphthylamine, phenothiazine, and phenyl.
  • 2,6-di-ert butyl paracresol, 2,6-di-tert-butyl phenol, 6-tert-butyl-10-cresol And so on.
  • the sliding part of toggle link 15 was coated with phenyl ether-based grease, which was not conventionally used as lubricating oil for circuit breakers. (Because it is applied to the engaging part with the lever 13), it has excellent lubrication performance under high load and excellent oxidation resistance of lubrication, and stable operation for a long time. Circuit breakers can be provided. Also, since the grease has excellent lubrication performance under a high load, it is preferable to use the grease as a lubricant between the insulating holder holding the movable contact and the base of the circuit breaker.
  • the lubricant of the mechanism and the lubricant between the insulating holder and the base can be used in common, so that the coating efficiency is good and the characteristics change with each other as in the case of using lubricants of different components.
  • lubricating oil for example, the lubricating oil described in the first embodiment
  • Example 1 Example 1
  • Substrate 1 10 mm long, 1 Omm wide, 2 mm thick
  • Nitriding treatment Hold at 580 ° C in a mixed gas atmosphere of ammonia, carbon dioxide and nitrogen for 1.5 hours to form a nitrided layer with a thickness of 10 to 15 ⁇ m.
  • B 02 Alkyl diphenyl ether base oil 98.5 wt%, molybdenum disulfide 1.0 wt%, phenolic antioxidant 0.5 wt%
  • a conventional grease having the following composition was used as a comparative example in this experiment.
  • the shear force was measured using a Shimadzu Precision Universal Testing Machine AG-100B.
  • the shearing force is the maximum force required to fix the substrate 1 and to slide the substrate 2 against the substrate 1 in the surface direction.
  • the service life according to the test results refers to a range in which the lubricant can obtain desired lubricating properties with respect to heat resistance and oxidation resistance.
  • FIG. 3 shows the results of a thermal degradation test (life test) on lubricating oil.
  • FIG. 3 shows the relative relationship of the results of the thermal degradation test for each sample, with the life of Comparative Example A01 set to 1.
  • Figure 4 shows the results of the grease thermal degradation test (life test).
  • FIG. 4 shows the relative relationship of the results of the thermal degradation test for each sample, with the life of Comparative Example B01 set to 1.
  • AO 1 Alphaolefin base oil 99.5 wt%, phenol oxidation 0.5 wt% of the inhibitor was inferior in lubricity and oxidation resistance.
  • B 01 99.5 wt% of alkyl diphenyl ether base oil and 0.5 wt% of phenolic antioxidant were inferior in lubricity and slightly superior in oxidation resistance.
  • B03 97.0 wt% of alkyl diphenyl ether base oil, 2.5 wt% of molybdenum disulfide, and 0.5 wt% of phenolic antioxidant have excellent lubricity. At the same time, it was also excellent in oxidation resistance.
  • Alkyl diphenyl ether base oil 94.5 wt%, molybdenum disulfide 5 wt%, and phenolic antioxidant 0.5 wt% are superior in lubricity. In addition, it had excellent oxidation resistance.
  • B05 97.0 wt% of alkyl diphenyl ether base oil, 2.5 wt% of graphite, and 0.5 wt% of phenolic antioxidant have excellent lubricity. The oxidation resistance was slightly better.
  • B01 to B05 in which the base oil is an alkyl diphenyl ether, compared to A01 to which the base oil of the comparative example was an olefin-based system to which only an antioxidant was added, It was excellent.
  • B01, in which the base oil was an alkyl diphenyl ether and only an antioxidant was added exhibited a lifespan approximately 5 times that of A01, and B02 to which molybdenum disulfide was added.
  • 304 has a lifetime of about 20 times that of 01 and about 4 times that of B01, and it has been found that it has extremely excellent oxidation resistance.
  • Arukirujifu phenyl ether antioxidant is added, small, and this to undergo chemical reactions Ya catalysis of some kind by F e 3 0 4 film formed iron based material having a thickness of 2 m on the nitride layer surface It is compatible with the iron-based material when used at high temperatures.
  • the oil film is thicker, the molecules that make up the oil move more easily, and the surface layer that is oxidized compared to a thin film (for example, an oil film without additives) where molecules tend to accumulate. It is presumed that the oxidation resistance is improved because the antioxidant easily moves to the surface. However, if the amount of molybdenum disulfide is less than 1 wt%, the above-mentioned effect of improving the oxidation resistance is reduced, but this is considered to be because the oil film has become thinner. %, The lubricating oil quality (homogeneity) is reduced, probably because the dispersion stability of molybdenum disulfide decreases.
  • DO 1 alkyl diphenyl ether base oil 88.0 wt%, lithium stone 10.0 wt%, and antioxidant 2.0 wt% are excellent in lubricity and slightly excellent in oxidation resistance I was
  • the oxidation resistance was also excellent.
  • DO 1 and DO 2 have a lifespan 3 to 5 times that of CO 1, and include urea as a thickening agent.
  • D 0 2 contains lithium as a thickening agent.
  • the service life was about 1.7 times longer than that of DO 1 including this. From this, the following can be considered.
  • Grayed lease to Arukirujifu phenyl ether-based base oil antioxidant is added, F e 3 0 4 layer some kind of chemical by ferrous material to form a thick 2 ⁇ m nitride layer surface It is less susceptible to reaction and catalysis, and is compatible with the iron-based material when used at high temperatures.
  • urea stone is inferior in heat resistance due to its excellent shape retention at high temperatures.
  • its shape is less likely to collapse, its thickness is not thinner, and its actual volume is larger, so oxidation time is longer and oxidation resistance is improved. It is presumed. It is also assumed that the thicker the film, the more easily the molecules composing the base oil move, and the better the oxidation resistance as compared to a thin film in which the molecules tend to stay.
  • the base oil is alkyl diphenyl ether and the thickener is urea-based stone.
  • Example 2 the base oil is alkyl diphenyl ether and the thickener is urea-based stone.
  • Fig. 5 shows the test results of the pass limit load.
  • B 03 Alkyl diphenyl ether base oil 97.0 wt%, disulfide The acceptable limit load was 0.2 Mpa for the lubricating oil containing 2.5 t% of phenol-based antioxidant and 0.5 wt% of lithium.
  • DO 2 Alkyl diphenyl ether base oil 88.0 wt%, grease containing 10.0 wt% of urea stone and 2.0 wt% of antioxidant have a pass limit load of 0.3. It was 4 MPa.
  • the switching mechanism for opening and closing the movable contact is housed in the insulating case, so that the operation is stable even at high temperature and high humidity and is suitable.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)
  • Breakers (AREA)

Abstract

L'invention se rapporte à un disjoncteur qui présente des caractéristiques excellentes de résistance à la chaleur et de résistance à l'oxydation s'agissant de lubrifier un mécanisme d'ouverture et de fermeture et qui se caractérise par un fonctionnement stable et prolongé. Ledit disjoncteur comporte un mécanisme d'ouverture/fermeture (A) disposé dans un boîtier isolant (1) et conçu pour ouvrir/fermer un contact mobile (3) par rapport à un élément de contact fixe (2), une unité de mise en contact (B) conçue pour entrer en contact avec le mécanisme d'ouverture/fermeture (A), et un mécanisme déclencheur (C) conçu pour supprimer le contact de l'unité de contact (B) lorsqu'une surintensité est détectée dans un passage pour câbles et pour séparer le contact mobile (3) du contact fixe (2). Dans ce disjoncteur, une partie du mécanisme d'ouverture/fermeture (A) est fabriquée dans une matière contenant du fer ou un composé à base de fer, et la partie coulissante de ce mécanisme est lubrifiée par une huile lubrifiante formée par ajout de 1 à 5 % en poids de bisulfure de molybdène à une huile d'éther phénylique additionnée d'un inhibiteur d'oxydation.
PCT/JP2000/005526 2000-08-18 2000-08-18 Disjoncteur WO2002017343A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP00953482A EP1229566B1 (fr) 2000-08-18 2000-08-18 Disjoncteur
CNB00814317XA CN1233010C (zh) 2000-08-18 2000-08-18 断路器
JP2002521318A JP4445197B2 (ja) 2000-08-18 2000-08-18 回路遮断器
DE60035521T DE60035521T2 (de) 2000-08-18 2000-08-18 Schutzschalter
PCT/JP2000/005526 WO2002017343A1 (fr) 2000-08-18 2000-08-18 Disjoncteur
TW089117343A TW464895B (en) 2000-08-18 2000-08-28 Circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/005526 WO2002017343A1 (fr) 2000-08-18 2000-08-18 Disjoncteur

Publications (1)

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WO2002017343A1 true WO2002017343A1 (fr) 2002-02-28

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PCT/JP2000/005526 WO2002017343A1 (fr) 2000-08-18 2000-08-18 Disjoncteur

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EP (1) EP1229566B1 (fr)
JP (1) JP4445197B2 (fr)
CN (1) CN1233010C (fr)
DE (1) DE60035521T2 (fr)
TW (1) TW464895B (fr)
WO (1) WO2002017343A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011081736A1 (de) * 2011-08-29 2013-02-28 Siemens Aktiengesellschaft Elektrischer Schalter

Citations (6)

* Cited by examiner, † Cited by third party
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JPH03295126A (ja) * 1990-04-12 1991-12-26 Fuji Electric Co Ltd 回路遮断器のトリップ機構
JPH06108078A (ja) * 1992-09-30 1994-04-19 Showa Shell Sekiyu Kk 潤滑グリース組成物
JPH08188790A (ja) * 1995-01-13 1996-07-23 Hitachi Ltd 潤滑油組成物及びグリース組成物
JPH09306326A (ja) * 1996-05-17 1997-11-28 Mitsubishi Electric Corp 回路遮断器の可動接触装置
JPH11120888A (ja) * 1997-10-20 1999-04-30 Mitsubishi Electric Corp 摺動用構造体およびこれを用いた回路遮断器
JP3080198B2 (ja) * 1992-04-07 2000-08-21 同和鉱業株式会社 ＣｕＩｎＳｅ２薄膜の製造方法

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JPH03295126A (ja) * 1990-04-12 1991-12-26 Fuji Electric Co Ltd 回路遮断器のトリップ機構
JP3080198B2 (ja) * 1992-04-07 2000-08-21 同和鉱業株式会社 ＣｕＩｎＳｅ２薄膜の製造方法
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JPH11120888A (ja) * 1997-10-20 1999-04-30 Mitsubishi Electric Corp 摺動用構造体およびこれを用いた回路遮断器

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JP4445197B2 (ja) 2010-04-07
TW464895B (en) 2001-11-21
CN1233010C (zh) 2005-12-21
DE60035521T2 (de) 2008-03-13
EP1229566A4 (fr) 2006-03-22
DE60035521D1 (de) 2007-08-23
EP1229566A1 (fr) 2002-08-07
EP1229566B1 (fr) 2007-07-11
CN1379911A (zh) 2002-11-13

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