WO2001080269A1 - Disjoncteur - Google Patents
Disjoncteur Download PDFInfo
- Publication number
- WO2001080269A1 WO2001080269A1 PCT/JP2001/001301 JP0101301W WO0180269A1 WO 2001080269 A1 WO2001080269 A1 WO 2001080269A1 JP 0101301 W JP0101301 W JP 0101301W WO 0180269 A1 WO0180269 A1 WO 0180269A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- circuit breaker
- weight
- contact
- breaker according
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- 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
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H2001/223—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member using a torsion spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H2009/0077—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 using recyclable materials, e.g. for easier recycling or minimising the packing material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
Definitions
- the present invention relates to a base constituting a mold case used for protecting a wiring circuit, and a circuit breaker having a crossbar supported by the base and holding a movable contact, particularly, a speed at which a handle is turned on and off. Regardless, it has the function of rotating the cross bar by the accumulating force of the toggle link mechanism to quickly move (quick-make) and quick-break (quick-break) the movable contact.
- the present invention relates to a circuit breaker that is excellent in preventing contact welding and simultaneous turning on of each pole, for example, a circuit breaker (Molded Case Circuit Breaker) specified in IEC 60947-2. Background art
- a conventional circuit breaker is provided with a mold case composed of a base and a cover, as shown in, for example, Japanese Patent Application Laid-Open No. H09-161616, and provided inside this mold case.
- a movable contact having a movable contact, and a fixed contact having a fixed contact which comes in contact with and separates from the movable contact. Twist]
- An insulating member which is supported by the base in a closed state of the circuit breaker and rotatably holds the movable contact.
- a crossbar formed of a material, an opening / closing mechanism for opening and closing the movable contact through the crossbar, and a contact pressure panel for pressing the movable contact against the fixed contact when the circuit breaker is closed. It is configured.
- the over-label is the amount of movement of the movable contact before and after the fixed contact and the fixed contact are removed in the closed state of the circuit breaker, that is, the amount indicating the contact margin of the contact. It is usually about 1 to 2 times the thickness of the contact.
- Crossbars and bases which are the components of circuit breakers, have been required to have mechanical strength, heat resistance, insulation, etc., and therefore have been mainly composed of thermosetting resins.
- the crossbar is 52% by weight of phenol, 15% by weight of glass fiber, 10% by weight of inorganic filler, 15% by weight of wood flour.
- the base is molded with a material composed of 50% by weight of phenol, 30% by weight of wood flour, 15% by weight of inorganic filler, pigment and other 5% by weight There was something.
- thermosetting resins such as phenolic resin and unsaturated polyester resin. It was difficult and hindered miniaturization and weight reduction.
- thermosetting resin as the main component constitutes the inside of the base due to restrictions on molding, and the parts that make up the base are required to have a predetermined thickness or more regardless of the size of the base. The internal parts were thick, making it difficult to downsize the base.
- a height of 2 mm or more The thickness of the rib was required to be about 2 mm or more due to restrictions on molding, and the locations inside the base were unnecessarily thick.
- the rib thickness of 2 mm is a value determined with a margin so as to satisfy a minimum thickness standard of 1 mm to 3 mm or more of a generally known thermosetting resin.
- thermosetting resin since the base of conventional circuit breakers is mainly composed of thermosetting resin, it is necessary to incinerate or reclaim burrs generated during molding, sprues and runners generated during injection molding. I was It is also being considered to use molded products containing thermoplastic resin as the main component for reasons such as high molding accuracy in the details, but especially when applied to the base, it is used as a base. The required characteristics were not fully satisfied.
- a molded article containing a thermoplastic resin disclosed in Japanese Patent Application Laid-Open No. 08-171 847, an inorganic compound that undergoes a dehydration reaction at 200 ° C. or more, and a reinforcing material has a flame retardant property.
- the base used excels in insulation performance after opening and closing the electrodes, and was suitable as a molded product for circuit breakers.However, compared to covers, handles, etc., at higher temperatures and under higher stress, the base used, especially when energized, When it is applied to a base that is above 0 ° C and receives a strong stress via the crossbar, the over-deformation that occurs due to the cleaving caused by various conditions of the base and the crossbar The decrease in travel was not large enough.
- thermoplastic resin-based base is used.
- the present invention has been made to solve such a problem, and an object of the present invention is to provide an environmentally friendly circuit breaker that can reduce the number of overlabels, make the base thinner, and provide an environment-friendly circuit breaker. ing. DISCLOSURE OF THE INVENTION ''
- a circuit breaker comprises: a fixed contact having a fixed contact; a movable contact having a movable contact which comes into contact with and separates from the fixed contact; and a contact which applies a contact pressure between the two contacts when the two contacts make contact.
- a pressure spring and an insulating resin are molded as a main component, and the movable contact is rotatably held and connected to the lower link of the toggle link mechanism.
- the crossbar that rotates around its rotation axis in accordance with the operation, and the handle of the toggle link mechanism release the power stored in the power storage panel by operating the handle, and the movable contact is quickly turned on and off.
- a circuit breaker having an opening / closing mechanism section to be opened, a base for fixedly supporting the opening / closing mechanism section, and a mold case formed by a cover covering the base from the handle side.
- the above base is a thermoplastic tree
- the crossbar is a molded product with a flexural modulus Ec at room temperature and normal humidity
- the crossbar above is a molded product with a flexural modulus Ec at normal temperature and normal humidity.
- thermoplastic resin is polybutylene terephthalate, polyethylene terephthalate, or polystyrene. Amides, aliphatic polycarbonates, polyphenylene sulfides, and / or at least one of these alloy materials provide excellent chemical and environmental resistance as well as recycling. Can be easily realized.
- the polyimide is at least one of Nylon 66, Nylon MXD 6, Nylon 46, and Nylon 6T, it is impact resistant and Excellent retention of heat generated during open / close durability.
- thermoplastic resin is made of polyethylene terephthalate, polyphenylene sulfide, and at least one of these alloy materials, the dimensional change due to moisture absorption And high retention of heat generated during open / close durability.
- the base contains 55 to 70% by weight of polybutylene terephthalate to which a flame retardant has been added and 30 to 45% by weight of a reinforcing material, so that cracks do not easily occur during terminal tightening.
- the base contains 40 to 70% by weight of polyethylene terephthalate to which a flame retardant has been added and 30 to 60% by weight of a reinforcing material, and thus has excellent heat resistance and creep resistance.
- the base contains 56 to 60% by weight of a polyamide to which a flame retardant and an elastomer are added, and 40 to 44% by weight of a reinforcing material. Therefore, it is excellent in impact resistance and insulation performance after interruption.
- the crossbar contains a phenol resin as a main component, the crossbar has excellent flame retardancy and further improves the over-label property.
- circuit breaker is multi-polar and has a slit extending in the wall direction perpendicular to the bottom wall of the base, so that dimensional deformation after molding is small and over-labeling is not possible. Can contribute to reduction.
- the slit divides the orthogonal wall into equal thicknesses, so that the dimensional change after molding is easy to predict, which can contribute to the reduction of overlabel.
- the slits are provided alternately from the front and back sides of the base. Dimensional deformation after molding is further reduced, which can contribute to the reduction of oververted labels.
- orthogonal walls are interphase walls, it is possible to contribute to the reduction of over-label.
- the base thickness between the slits is equal to the thickness of the base bottom wall, it is easy to predict a dimensional change after molding, which can contribute to a reduction in overlabel.
- the orthogonal wall is a wall between the contact storage section for storing the movable contact and the fixed contact and the opening and closing mechanism storage section for storing the closing mechanism section, the wall extending from the contact side to the opening and closing mechanism section side.
- the thermal conductivity can be reduced, and the deterioration of the lubricant used for the opening / closing mechanism can be delayed.
- the slit is formed so as to open on the back surface side of the base, heat can be efficiently dissipated.
- the thickness of the wall between the slit and the inside of the base is made thinner than the thickness of the base bottom wall, so that heat is transferred from the inside of the base to the slit. Easy to be.
- the base contains 56 to 60% by weight of a polyamide to which a flame retardant and an elastomer are added and 40 to 44% by weight of a reinforcing material, the overlabel is reduced.
- the base is made thinner and lighter and more environmentally friendly.
- the thickness of the base can be reduced, the surface insulation distance can be increased. Also, it has excellent impact resistance and insulation performance after interruption.
- the crossbar contains 28 to 32% by weight of a phenol resin, 43 to 47% by weight of a reinforcing material, and 23 to 27% by weight of an inorganic filler. Label loss is less. '
- flame retardants and elastomers have a weight ratio of 50 to 70 for halogenated compounds and 20 to 30 for elastomers, based on polyamide. Small decrease in heat resistance, high flame retardancy, and excellent impact resistance.
- the base contains 45 to 60% by weight of polyethylene terephthalate to which a flame retardant has been added and 40 to 55% by weight of a reinforcing material, there is little decrease in overlabel.
- the base can be made thinner and lighter, and it is environmentally friendly. Furthermore, since the thickness of the base can be reduced, the surface insulation distance can be increased.
- the crossbar contains 55 to 65% by weight of phenolic resin, 10 to 25% by weight of reinforcing material, and 10 to 25% by weight of inorganic filler, making molding easy. And excellent hopper dropping property during continuous molding.
- the crossbar contains 25 to 35% by weight of a phenolic resin, 40 to 50% by weight of a reinforcing material, and 20 to 30% by weight of an inorganic filler. Label loss is less.
- the flame retardant has a weight ratio of 25 to 40 of the halogenated compound with respect to the polyethylene terephthalate 100, so that the reduction of the excess label is small and the flame retardancy is high. Excellent impact resistance.
- the base contains 40 to 70% by weight of a polyethylene terephthalate to which a flame retardant has been added and 30 to 60% by weight of a reinforcing material. Since the resin content is 25 to 35% by weight, the reinforcing material is 40 to 50% by weight, and the inorganic filler is 20 to 30% by weight, there is little reduction in over-labeling. Thinner base. Lightweight and environmentally friendly. Furthermore, since the thickness of the base can be reduced, the surface insulation distance can be increased. Also, it has excellent heat resistance.
- the base contains 40 to 70% by weight of polyethylene terephthalate with added flame retardant and 30 to 60% by weight of reinforcing material
- Crosno is a phenolic resin. Contains 55 to 65% by weight, 10 to 25% by weight of the reinforcing material and 10 to 25% by weight of the inorganic filler, so that the reduction of the label is small, and Excellent moldability.
- the base contains 55 to 70% by weight of polybutylene terephthalate to which a flame retardant has been added and 30 to 45% by weight of a reinforcing material, so there is little reduction in over-labeling.
- the base can be made thinner and lighter and more environmentally friendly. Furthermore, since the thickness of the base can be reduced, the surface insulation distance can be increased. In addition, it is possible to mold fine parts. Also, cracks are less likely to occur during terminal tightening.
- the crossbar contains 25 to 35% by weight of phenol resin, 40 to 50% by weight of reinforcing material, and 20 to 30% by weight of inorganic filler. Less decrease.
- D-Suva has 55 to 65% by weight of fluorinated resin, 10 to 25% by weight of reinforcing material, and 10 to 25% by weight of inorganic filler. Because it contains, it is easy to mold and has excellent hopper dropping property during continuous molding.
- the flame retardant has a 25 to 40 weight ratio of the halogenated compound to the polybutylene terephthalate 100, so that the reduction of the excess label is small and the flame retardancy is high. Excellent impact resistance.
- the main resin of the base is made of a thermoplastic resin, and the wall orthogonal to the bottom wall of the base has a slit extending in the direction of the wall. This contributes to a reduction in travelling.
- the slit divides the orthogonal wall into equal thicknesses, so that the dimensional change after molding can be easily predicted, which can contribute to a reduction in overlabel.
- orthogonal walls are interphase walls, it is possible to contribute to the reduction of over-label.
- the thickness of the base between the slits is equal to the thickness of the bottom wall of the base, it is easy to predict a dimensional change after molding, which can contribute to a reduction in overlabel.
- the orthogonal cross is a wall between the contact storage section for storing the movable contact and the fixed contact and the switching mechanism storage section for storing the switching mechanism.
- the conductivity can be reduced, and the deterioration of the lubricant used for the opening / closing mechanism can be delayed.o
- the slit is formed so as to open to the back side of the base. Therefore, heat can be efficiently dissipated.
- the thickness of the wall between the slit and the inside of the base is made thinner than the thickness of the base bottom wall, heat is easily transferred from the inside of the base to the slit.
- FIG. 1 is a perspective view showing a circuit breaker according to one embodiment of the present invention.
- FIG. 2 is a diagram illustrating a closed state of the circuit breaker according to one embodiment of the present invention.
- FIG. 3 is a perspective view showing a cross bar of the circuit breaker according to one embodiment of the present invention.
- FIG. 4 is an explanatory diagram showing an enlarged view of a contact portion of the circuit breaker according to one embodiment of the present invention.
- FIG. 5 is an explanatory diagram showing a fastening state between the base and the switching mechanism of the circuit breaker according to one embodiment of the present invention.
- FIG. 6 is a cross-sectional view of the crossbar and the contact contact portion according to the embodiment of the present invention, as viewed from the contact side.
- FIG. 7 is a front view of a circuit breaker according to an embodiment of the present invention, with a base partly cut away.
- FIG. 8 is a rear view of the base of the circuit breaker according to one embodiment of the present invention.
- FIG. 9 is a sectional view taken along line IX-IX of FIG.
- FIG. 10 is a sectional view taken along line XX of FIG.
- FIG. 11 is a sectional view taken along the line XI—XI of FIG.
- FIG. 12 is a diagram showing a 100-ampere freewheel according to Embodiment 1 of the present invention.
- FIG. 4 is a view showing a mold for forming a cross bar of a rubber.
- FIG. 13 is a view showing a mold for molding a base of 100 ampere frame according to Embodiment 1 of the present invention.
- FIG. 1 is a perspective view showing a circuit breaker according to one embodiment of the present invention.
- FIG. 2 is a diagram showing a closed state of the circuit breaker according to one embodiment of the present invention, in which a base and a crossbar are shown in FIG.
- FIG. 3 is a perspective view showing a crossbar of the circuit breaker according to one embodiment of the present invention, and shows a movable contact having only one pole.
- '1 is a mall consisting of a base 1A and a base 1B.
- the base 1B is a molded product whose main component is a thermoplastic resin.
- reference numeral 2 denotes a fixed contact mounted on the base 1B and having a fixed contact 3
- 4 denotes a movable contact having a movable contact 5 facing the fixed contact 3. It is rotatably supported by 6.
- 7 is made of insulating material, and the pivot pin 6 of each pole is fixed and
- reference numeral 8 denotes the direction in which the movable contact 4 is closed when the circuit breaker is closed by being interposed between the movable contact 4 and the crossbar 7, (clockwise in Fig. 2).
- Reference numeral 10 denotes a connecting pin for connecting the lower link 11 and the crossbar 7 of the switchgear mechanism 9 to transmit the driving force of the lower link 11 to the crossbar 7.
- Reference numeral 18 denotes a screw for fixing the frame 17 to the base 1 ⁇ .
- Reference numeral 20 denotes a flexible conductor that electrically connects the movable contact 4 and the overcurrent detection unit 21.
- the overcurrent detection unit 21 includes a bimetal that deforms in accordance with the conduction current and a conduction current.
- the armature is constituted by an electromagnetic device that is attracted to the yoke.
- Reference numeral 2 2 denotes a conductor for electrically connecting the overcurrent detection section 21 to the terminal plate 23 .
- the terminal plate 23 is fixed to the base 1 ⁇ with the tightening screw 23 a, and the external wire cable And fix it with the screw 2 6.
- the current paths in the circuit breaker are fixed contact 2, fixed, fixed contact 3, movable contact 5, movable contact 4, flexible conductor '20, overcurrent detection device 21, conductor 2 2. It is composed of the path of terminal board 23.
- the opening / closing mechanism 9 includes a toggle link mechanism including a lower link 11, a ring pin 12, an upper link 13, a lever pin 14, a lever 15, and a main link 16. It is composed of frame 17, node 19 and so on. 'By operating the handle 19, the action line of the main panel 16 exceeds the dead point of the toggle link mechanism, and the toggle link mechanism rapidly moves in the 0N operation. In the meantime, the toggle link mechanism rapidly bends in the 0FF operation, and the movable contact 4 is opened and closed regardless of the operation speed of the handle 19.
- the latch is operated by the tripping operation from the overcurrent detection unit 21. (Not numbered) is released, lever 15 restrained by this latch is released from its restraint, and link pin 15a crosses the action line of main spring 1'6. As a result, the toggle link mechanism rapidly bends and opens the movable contact 5.
- the circuit breaker of the present invention has a function of quick-make and quick-bi'eak, and is excellent in preventing contact welding at the time of opening and closing and simultaneously closing each pole.
- it is a Mold Case Circuit Breaker specified in IEC 60947-2.
- FIG. 4 is an explanatory diagram showing, in an enlarged manner, a contact portion of the circuit breaker according to one embodiment of the present invention, in which a broken line indicates a closed state, and a solid line indicates a fixed contact and a fixed contact from the closed state. Shows the state after removing.
- the movable contact 4 moves the pivot pin 6 around the rotation center by the pressing force of the contact pressure panel 8. And rotate until it hits the locking portion 7a of the crossbar 7.
- the amount of movement of the movable contact 5 at this time is called overtravel, and this overlabel is usually about 1 to 2 times the thickness of the fixed contact 3, and is shown as OT in FIG. .
- FIG. 5 is an explanatory diagram showing a fastening state between the base and the switching mechanism of the circuit breaker according to the embodiment of the present invention.
- the opening / closing mechanism 9 is fixed to the base 1B by a screw 18 at the frame 17.
- the upper link 1 is connected to the burring shaft 15 a, which is formed integrally with the lever 15, with the lever pin 14 formed integrally with the frame 17 of the opening / closing mechanism 9 as the center of rotation. 3 is locked.
- the upper link 13 and the lower link 11 are connected by a link pin 12, and a load of the main spring 16 is applied to the link pin 12.
- a contact pressure is applied between the fixed contact 3 and the movable contact 5 by the contact pressure spring 8, and the fixed contact 3 is fixed to the fixed contact 2.
- a load is constantly applied to the cross bar 7 in the direction of arrow A via the movable contact 4 and the contact pressure panel 8 as a reaction force.
- FIG. 6 is an explanatory diagram of a cross bar and a contact contact portion according to an embodiment of the present invention as viewed from the contact side.
- an upward load B 1 is constantly applied to the center pole of the cross bar 7 due to the load of the contact pressure spring 8.
- An upward load B 2 always acts on the left and right poles of the crossbar 7.
- a load of downward C (also shown in Fig. 5) is constantly applied to the bearings of the base 1B: la1 and la2 from the rotating shafts 7a1 and 7a2 of the crossbar 17 respectively.
- a downward load is applied to the base 1B via the fixed contact 2! ) (Also shown in Figure 5)
- An upward load E is acting via frame 17 and screws 1 and 8.
- the base 1B and the crossbar 7 have the load acting thereon and the moment based on the load, the base 1B 'and the crossbar when the circuit is closed and when the opening and closing operation is performed.
- the dimensional change due to the residual stress relaxation depending on the use temperature the dimensional change due to moisture absorption, the temperature, the humidity, the time, the composition, etc. Since there are various conditions, it is very difficult to estimate the amount of deformation. All of these creep deformations act in the direction of relaxing stress, that is, in the direction of reducing over-labeling.
- thermoplastic resin as the main component of base 1B
- a circuit breaker with base 1B and cross bar 7 of the same amp frame is used.
- the decrease in overtravel at year ⁇ was a tendency for the decrease in overtravel at year ⁇ to become so significant that it could not be ignored.
- the reduction of over-label of a circuit breaker using a base having a composition described in Japanese Patent Application Laid-Open No. 08-171817, which uses a thermoplastic resin as a main component was large. .
- the present inventors have found a suitable composition of the base 1B and the crossbar 17 which are excellent in over-label characteristics when using a molded article of a thermoplastic resin as a main component as the base 1B of the circuit breaker.
- a suitable composition of the base 1B and the crossbar 17 which are excellent in over-label characteristics when using a molded article of a thermoplastic resin as a main component as the base 1B of the circuit breaker.
- the normal temperature is 21 degrees Celsius to 25 degrees Celsius
- the normal humidity is 60% to 70% humidity.
- the flexural modulus at room temperature and normal humidity is the average value of measured values in an atmosphere at a temperature of 21 to 25 degrees Celsius and normal humidity of 60% to 70%.
- the base 1B is a molded article mainly composed of a thermoplastic resin and having a flexural modulus Eb at normal temperature and normal humidity.
- the thermoplastic resin include polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polyamide (PA), aliphatic polycarbonate, and polyphenylene terephthalate. And sulfur alloys (PPS) and their alloy materials.
- Polyamides have an amide group (one CO—NH—) in the chemical structure.
- the material is a crystalline resin, and has an advantage of being excellent in chemical resistance and environmental resistance as compared with an amorphous resin such as polycarbonate (PC). Therefore, the circuit breaker can be used for a long time in various environments such as an oil mist (oil smoke) atmosphere, an ammonia gas atmosphere, and a sulfur-based gas atmosphere.
- polyamides have advantages such as impact resistance and the ability of the material surface to be hardly deteriorated by arc exposure at the time of interruption.
- Nylon 66, Nylon MXD'6, Nylon 46, or Nylon 6 from the viewpoint of shape retention (heat resistance) in open / close endurance tests where current is repeatedly supplied and cut off at rated current. T is desirable.
- polyethylene terephthalate (PBT), polyethylene terephthalate (PET), aliphatic polyethylene Keton, polyphenylenesulfide (PPS) and their alloy materials are desirable.
- polyethylene terephthalate (PET), polyphenylene sulfide (PPS), or alloy materials thereof are desirable.
- Components other than the thermoplastic resin include a reinforcing material such as glass fiber, an inorganic filler, and other additives.
- the cross bar 7 is a molded product having a flexural modulus Ec at room temperature and humidity.
- the insulating resin which is a main component of the molded product include the same as those of Base 1B, and preferably, unsaturated polyester, phenol resin and the like.
- phenolic resins Compared to thermoplastic resins and unsaturated polyesters, phenolic resins have superior high-temperature creep characteristics, and can be used for both injection molding and compression molding, making them easy to mold. I like it because I can do it. Both novolak resin and resol resin may be used, but novolac phenol resin is desirable from the viewpoint of the dimensional stability of the molded product.
- the main resin of the crossbar 7 includes wood powder, which is an organic filler, Also included are crushed cloth, polyamide, polyester, and polyacryl.
- the filler of the crossbar 7 means an inorganic filler, and the organic filler is included in an insulating resin.
- inorganic fillers mainly contribute to the improvement of the strength and flexural modulus of molded products, while organic fillers improve flexural modulus compared to inorganic fillers. This is because they do not contribute much and mainly contribute to improving the moldability and impact resistance of molded products. ⁇
- Components other than the insulating resin include a reinforcing agent such as glass fiber, an inorganic filler, and other additives.
- the glass fiber, inorganic filler and other additives of the base 1B and the crossbar 7 described above are as follows.
- the glass fiber refers to a fibrous material made of glass, and is not particularly limited as long as it satisfies the total content of Group A metal compounds of the periodic table.
- the glass material include E glass, S glass, D glass, T glass and silica glass.
- the diameter of the glass fiber is 6 to 13 m and the aspect ratio is 10 or more from the viewpoint of improving the impact strength.
- inorganic filler examples include alumina, calcium carbonate, myriki, crepe, talc, kaolin, and wallastone.
- additives include an internal release agent such as stearic calcium, a pigment, and the like, for example, black pigment for base 1B.
- the bending elastic modulus Eb of the base 1B at normal temperature and normal humidity and the bending elastic modulus Ec of the crossbar 7 at normal temperature and normal humidity satisfy the following relationship.
- the flexural modulus is a function of temperature and humidity. It tends to decrease with increase.
- the bending elastic modulus Eb of 1B at room temperature and normal humidity and the bending elastic modulus Ec of the crossbar 7 at normal temperature and normal humidity satisfy the following relationship.
- the bending elastic modulus Eb of the base 1B at room temperature and normal humidity and the bending elasticity of the cross bar 7 at room temperature and normal humidity are also considered.
- the ratio E c preferably satisfies the following relationship.
- the crossbar 7 can be supplied by either injection molding or compression molding, but injection molding is preferable because of high productivity.
- the crossbar 7 is injection-molded, the flexural modulus E c If the pressure exceeds 170,000 MPa, breakage of the glass fiber in the material kneading process is small, and the length of the material pellet becomes too long.
- E c 170 000 MPa.
- the base 1B is mainly composed of a thermoplastic resin. Compared with the case where the thermosetting resin is the main component, the burrs generated during molding and the sprues generated during injection molding are smaller. It is environmentally friendly because there is no problem of industrial waste disposal such as incineration or landfill of land and runners. Furthermore, the base 1B is made of a thermoplastic resin as a main component, so that it can be recycled.
- base 1B is mainly composed of a thermoplastic resin, compared to the case where base 1B is mainly composed of phenolic resin, the base 1B has better track resistance and a shorter insulation distance. Furthermore, ammonia, which is a by-product of the phenol production process, is not generated. Further, there is no problem that unreacted styrene occurs during use as compared with the case where the main component of base 1B is composed of an unsaturated polyester resin.
- base 1 B is mainly composed of thermoplastic resin, so for example, Even ribs with a height of 2 mm or more can be molded with a thickness of 2 mm or less, enabling a thin-wall design. If the thickness can be reduced, the number of ribs and grooves in the same space can be increased, and the insulation distance for the path on the molded product can be increased, or the same insulation distance can be reduced. The space can be secured, and the product can be downsized.
- base 1B which is mainly composed of thermosetting resin, has insufficient strength due to insufficient filling of material at the tip of thin ribs and insufficient filling of reinforcing agents such as glass fibers due to molding conditions and material properties. The problem that is remarkable and difficult to reduce the wall thickness can be solved because the base 1B is made of a thermoplastic resin as a main component and the material is filled to the tip of the thin wall.
- the base 1B is mainly composed of a thermoplastic resin, the weight of the circuit breaker can be reduced.
- Fig. 7 is a front view showing a base of a circuit breaker according to an embodiment of the present invention in a partial cross section
- Fig. 8 is a rear view
- Figs. 9 to 11 are Figs. — IX line, X— X line, XI — Sectional view cut along the XI line.
- the base 1B extends orthogonally to the base bottom and is separated into three phases by outer walls 30 and '30 and interphase walls 41 and 41 provided in parallel with each other.
- Each phase includes a contact section 24 where both contacts 3 and 5 are arranged, a crossbar section 26 where the crossbar 7 and the opening / closing mechanism section 9 are arranged (opening / closing mechanism housing section), It is formed by a trip portion 28 in which an overcurrent detection device 21 for applying a trigger to the switching mechanism 9 so as to detect a current and connect a contact is arranged.
- 3 2 is the through hole for the fixing screw for mounting the circuit breaker
- 32 A (No. (Not numbered in Fig. 1 to Fig. 6) are support projections provided in a substantially C-shape around the through hole 32 from the main surface of the back surface of the base 1B.
- the support projection 32A acts as a spacer, and the main surface of the back surface of the base 1B is separated from the switchboard or the like.
- the shape and arrangement of the support projection 32a are not limited as long as the main surface of the back surface of the base 1B performs a spacer function of separating from the switchboard or the like.
- Reference numeral 33 denotes an end of the interphase wall 41 on the trip side, and a slit 33a into which a cover 1A rib is inserted is provided.
- Reference numeral 36 denotes a trip side wall provided between the terminal mounting portion 3 4 and the trip portion 28, and the wall 36 A provided in the terminal mounting portion 34 and the trip portion 28. It is composed of the provided wall 36B.
- the slit 36a and the slit 36d are provided on the wall 36B in a direction orthogonal to each phase, on the inner side (front side) of the base 1B. And on the back side alternately. Therefore, the dimensions of the base 1B after molding are stabilized, which can contribute to a reduction in overtravel.
- the thickness t04 of the backside wall 36a of 6a, the thickness t03 of the wall 36j between the slit 36a and the trip part 28 is almost equal. Thickness, which can further contribute to a reduction in overtravel.
- reference numeral 40 denotes a contact side wall provided between the terminal mounting portion 38 and the contact portion 24.
- Strips 30a and 30d are provided alternately in the interphase direction on the front and back surfaces of the terminal mounting portion 38 and the outer wall 30 near the contact side wall 40, respectively.
- the slits 30a and 30d divide the outer wall 30 equally in the thickness direction.
- the interphase wall 4 1 is composed of an interphase wall 42 on the contact side and a support 1 a 1, 1 a 2. It is formed by the interphase wall portion 44 on the trip device side.
- the interphase wall portion 42 is equally divided into a first phase side wall 42a and a second phase side wall 42c by a slit 42b.
- the first phase side wall 42a and the second phase side wall 42c are equally divided by the slit 42d.
- the slit 42b and the slit 42d are separated by a wall 42g of thickness t05 (Fig. 11).
- 42 e is a through hole of a fixing screw for fixing the cover 1A to the base 1B.
- narrower portions 4 2 i, 4 2 j and 4 2 i are provided which are slightly wider than the movable contact 4 4 2 x Is a slit into which one end of frame 18 is inserted.
- the squeezed portion 42 i extends from the side wall 30 to the interphase wall 41 side and a rib 42 i 1 (FIG. 10) and extends from the base bottom wall 42 p to the cover 1 A side.
- the ribs 4 2 i 2. Formed by the ribs 4 2 i 3 extending from the interphase wall 41 to the side wall 30, and the ribs 4 2 i 1, 4 2 i 2, 4 2 i 3 is provided with a slit 4 21 (Fig. 7) in the extending direction, and the creepage distance is long.
- a slit 42 f (FIGS. 8 and 10) is provided at a base 42 h between the rib 42 i 3 and the interphase wall 41.
- the squeezed portion 42j is formed by a rib 42j1 extending to the mutual wall 41 side and a rib 42j2 extending from the base bottom wall 42p to the cover 1A side.
- the ribs 42j1 and 42j2442j1 are provided with slits 42m in the extending direction, and the creepage distance is increased.
- the apertures 42i, 42j, 42i, and the base 42h serve as walls separating the contacts 3 and 5 from the opening / closing mechanism 9, and the contacts 3 and 5 are separated. -Suppress the gas generated by the pressure rise when shutting off the gas to the opening / closing mechanism 9 side.
- a slit 42 f is provided in a base 42 h serving as a wall for partitioning the contacts 3 and 5 and the opening / closing mechanism 9, and a heat of the space of the slit 42 f (that is, an air layer) is provided. Since the conductivity is lower than when the base 42 is filled with resin, the thermal conductivity from the contacts 3 and 5 sides of the base 1B to the opening / closing mechanism 9 is low. Therefore, the heat generated by the contacts 3 and 5 during energization is less likely to be transmitted to the opening / closing mechanism 9 side, and the progress of deterioration of lubricants such as oil and grease used for the opening / closing mechanism 9 can be delayed.
- the main surface of the base 1B back surface is separated from the installation surface of the switchboard etc. by the support projection 32A, and the slit 42f is provided from the base 1B back surface side
- the heat radiation area becomes larger as compared with the case where the resin is filled, so that heat is easily radiated out of the base 1B, and the progress of deterioration of the lubricant can be further delayed.
- the thickness t06 of the base bottom wall 42p which is almost the same as t01 to t05
- the wall between the slit 42f and the inside of the base 1B for example, The thickness t07 of the slit wall 42q is small, and heat can be efficiently released through the slit 42f.
- the interphase wall portion 4.4 is formed by slits 44a, 44d (especially 44d2), 44b which are provided alternately on the surface and the back surface of the base 1B in the extending direction of the interphase wall 41.
- the first phase side (center phase in Fig. 7) and the second phase side (right phase in Fig. 7) are equally divided.
- the slit 44d is composed of spaces 44d1, 44d2, and 44d3.
- 44 X and 44 y are convex portions for positioning, and 44 z are convex portions to be fitted with the cover 1.1 A.
- the dimensions of the base 1B after molding are stable. It can contribute to the reduction of bar labels. Also, the thickness of the wall 4 4 g, 4 4 h, 4 4 i, 4 4 ( ] ',
- 498 is a slit provided on the side wall 30 from the front side of the base 18, and 49 B and 49 C are slits provided on the side wall 30 from the front side of the base 1 B. It is.
- a wall having a thickness equal to or more than a predetermined value is equally divided so as to have a predetermined thickness.
- Embodiment 1 In Embodiment 1, a circuit breaker for 100 amp frames will be described. The specific configuration of this circuit breaker is as described in the above embodiment.
- the pitch between the poles is 30 mm, and in the case of a three-pole product, the base 1B width dimension is 90 mm.
- the contact pressure between the contacts by the contact pressure panel is 20 N or less.
- FIG. 12 is a diagram showing a mold for forming a cross bar of 100 amp frames according to the first embodiment of the present invention.
- reference numeral 80 denotes a mold comprising an upper mold 80A and a lower mold 80B, the inside of which is formed along the crossbar 17.
- Reference numeral 81 denotes an injection port of a mixed material formed by the upper mold 80A and the lower mold 80B. The mixed material is injected from the injection port 81 at the longitudinal end of the mold 80 to 0.750 kg (75 ton) using an injection molding machine, and the mold temperature is 17 4 to 17 6 degrees.
- the molding is carried out under the conditions of a cylinder-front temperature of 80 to 85 degrees, a cylinder-back temperature of 60 to 70 degrees, and an injection time of 9 to 11 seconds.
- the crossbar 7 thus formed was heat-treated under the conditions shown in Tables 1 to 4. In this way, the crossbars of the sample examples (11) to (41) shown in Tables 1 to 4 were obtained.
- the crossbars are composed of phenol resin, glass fiber (GF), and filler, and the mixing ratio and the heat treatment conditions are changed.
- 'Glass fiber refers to a fibrous material made of glass, and is not particularly limited as long as it satisfies the total content of Group A metal compounds in the periodic table.
- the glass material include E glass, S glass, D glass, T glass and silica glass.
- the diameter of the glass fiber is 6 to 13 ⁇ m and the aspect ratio is It is preferably at least 10 from the viewpoint of improving the impact resistance.
- the filler examples include inorganic fillers such as alumina, calcium carbonate, clay, talc, and kaolin, and examples of the organic filler include polyamide, polyester, and polyacryl. As described above, the organic filler is included in the phenol resin in view of its properties.
- FIG. 13 is a view showing a mold for molding a base of 100 amp frames according to Embodiment 1 of the present invention.
- reference numeral 90 denotes a mold comprising a fixed mold 90A and a movable mold 90B, the inside of which is formed along the base 1B.
- Reference numeral 91 denotes an inlet for the mixed material formed in the fixed mold 90A. The mixed material is supplied from the injection port 91 located at the center of the fixed mold 9 OA through an injection molding machine with a movable mold temperature of 80 to 100 kg.
- Samples of Tables 1 to 4 Measure the base 1B and crossbar 7 shown in (11) to (41) in an atmosphere of 21 to 25 degrees Celsius and 60% to 70% humidity. The average values are defined as the bending elastic moduli Eb and Ec at normal temperature and normal humidity, and the values are shown in Tables 1 to 4.
- Polyamide (PA) has a large change in flexural modulus due to humidity compared to other resins. It measured also on the conditions of. A song in the desert The sample elasticity of the sample (31) was 7500 MPa, and that of the sample (32) and (33) was 1500 MPa.
- the stress applied to the cross bar 7 in the closed state acts in a direction to reduce the overtravel.
- the period during which circuit breakers are used is usually between 10 and 15 years.
- the contact pressure between the two contacts will occur if a crossbar 7 or base 1B with poor over-travel performance is used. This almost eliminates the reliability of energization.
- the amount of creep deformation which is considered to be the main cause of oververt labels, does not saturate as long as stress is applied, and ultimately the molded product may lead to clip failure. is there.
- the overtravel distance between base 1B and crossbar 7 was determined under the following conditions. '"Assemble the circuit breaker (100 ampere frame) using the sample examples (11) to (41), which are the base 1B and the crossbar 7 formed by the method described above, and An over-travel test was performed: the assembled circuit breaker was kept open for one week in a thermo-hygrostat at 85 ° C and 85% relative humidity, and then the circuit breaker was closed. After leaving it in a constant temperature / humidity chamber at 40 degrees Celsius and 85% relative humidity for 3000 hours, it was taken out and the amount of over-label reduction of the movable contact '5 of each electrode was measured. From the measurement results, that is, the overtravel characteristics, the overtravel reduction amount after 15 years was estimated, and based on the contact thickness, the reduction amount was the reference value (in the case of Example 1). Is less than 1.2 mm). (Test results)
- the filler of the cross bar 7 in Tables 1 to 4 indicates an inorganic filler, and the organic filler is included in the resin.
- the base 1B is made of polybutylene terephthalate (PBT) to which a flame retardant is added and glass fiber (GF), and the sum of the flexural moduli.
- PBT polybutylene terephthalate
- GF glass fiber
- the flame retardant is, for example, a halogen compound (dibromopolyethylene and brominated epoxy, etc.), and a weight ratio of 25 to 40 to 100 of polybutylene terephthalate (PBT). is there.
- a halogen compound dibromopolyethylene and brominated epoxy, etc.
- PBT polybutylene terephthalate
- sample examples (11), (12), and (15) have excellent impact strength and have a terminal plate 23 (second type) as compared with those of Tables 2 to 4 described later. As shown in the figure, cracking did not easily occur when the cable 25 was tightened with screws.
- the base 1B is 55 to 70% by weight of polybutylene terephthalate (PBT) containing a flame retardant and 30 to 45% by weight of a reinforcing material, the characteristics of an over-trap are available. It was excellent.
- the resin is 25 35% by weight, 40% to 50% by weight of reinforcing material, 20% to 30% by weight of filler, and 55% to 0.65% by weight of resin because of good moldability
- those containing 10 to 25% by weight of the reinforcing material and 10 to 25% by weight of the filler were particularly preferable.
- PET Polyethylene telemetry evening rate
- the base 1B is made of polyethylene terephthalate (PET) to which a flame retardant has been added and glass fiber (GF), and has a flexural elasticity.
- PET polyethylene terephthalate
- GF glass fiber
- the flame retardant is, for example, a halogen compound (dibromopolyethylene (dibromopolyethylene, brominated epoxy, etc.)), and has a weight ratio of 25 to 40 to 100 polyethylene terephthalate (PET). .
- a halogen compound dibromopolyethylene (dibromopolyethylene, brominated epoxy, etc.)
- PET polyethylene terephthalate
- Sample examples (21), (25), (26), (28), (29). (21), (25), (28), and (29) are moreover-labeled than the sample example (26). It was good with little reduction in the number of tools.
- the sample examples (2 2) and (26) are less affected by the orientation of the glass fiber than the sample examples (2 1), (25), (28) and (29). It was excellent in that distortion and warpage of the film could be suppressed.
- the molded product had a higher melting point than the sample in Table 1, and the base 1B was difficult to melt in the overload durability test.
- the properties of the overlabel were excellent.
- the crossbar 7, 25 to 35% by weight of resin, 40 to 50% by weight of reinforcing material, and 20 to 30% by weight of filler are considered from the characteristics of the over-label.
- % And from the viewpoint of good moldability, 55 to 65% by weight of resin, 10 to 25% by weight of reinforcing material, and 10 to 25% by weight of filler are particularly preferable.
- G F 28-32 Filler: 0 o'clock
- the base 1B is made of polyamide (PA), glass fiber (GF) and magnesium hydroxide, and is disclosed in Japanese Patent Application Laid-Open No. Hei 8-17718. It corresponds to what was done.
- the overtravel test failed.
- the sample example (32) failed the over-label test, and the sample example (33) passed the over-label test.
- the flame retardant is, for example, a halogen compound (such as dibromopolyethylene and brominated epoxy), and the elastomer is an ionomer of a polyolefin copolymer or an ethylene / propylene copolymer.
- the weight ratio of the flame retardant is 50 to 70 and that of the elastomer is 20 to 30 with respect to 100 (Polyamide).
- sample example (33) is suitable for over-labeling. It has excellent impact resistance and insulation properties after arc interruption between contacts, and is preferred as base 1B of circuit breaker. Was something. Samples (33) in which no elastomer was added to the base 1B polyamide had poor over-labeling properties, although the impact resistance was inferior to the sample example (3.3). there were.
- polyamide (PA) has a relatively large change in flexural modulus due to humidity. Compared to other thermoplastic resins with the same flexural modulus Eb at room temperature and normal humidity, it has an overtravel. The amount tended to be slightly larger.
- the base 1B is made of polyphenylene sulfide (PPS) and glass fiber (GF) to which a filler is added.
- PPS polyphenylene sulfide
- GF glass fiber
- the filler to be added to polyvinyl sulfide (pps) is calcium carbonate, an inorganic filler, for example, 100% for polyphenylene sulfide (PPS). 880 weight ratio.
- the main component of the molded product shown in Table 3 is polyamide (PA)-The warpage of the molded product, sink mark, and dimensional change due to moisture absorption are caused by over-labeling due to clip deformation. It has been found that they may work in a direction that promotes a reduction in the number of people. Therefore, as the main components of the molded article, the poly-butylene terephthalate (PBT), polyethylene terephthalate (PET), and polyphenylene terephthalate (PET) shown in Tables 1, 2, and 4 are based on the characteristics of over-travel. Nsulfide (PPS) is more preferred.
- PPS polyphenylene terephthalate
- circuit breaker base IB miniaturization and weight reduction required for circuit breaker base IB, no waste during molding, heat resistance, mechanical strength, impact strength, appearance, flame retardancy, insulation after arc interruption From the viewpoint of satisfying the requirements such as resistance and tracking cost in a well-balanced manner, polyethylene terephthalate (PBT) and polyethylene phthalate (PET) are preferred.
- PBT polyethylene terephthalate
- PET polyethylene phthalate
- the circuit breaker according to the present invention can be used as a circuit breaker for a distribution board or a main body of a distribution board / control panel.
Landscapes
- Breakers (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/980,590 US6570481B2 (en) | 2000-04-14 | 2001-02-22 | Circuit breaker |
CA002370476A CA2370476C (en) | 2000-04-14 | 2001-02-22 | Circuit breaker |
DE10191111T DE10191111B4 (de) | 2000-04-14 | 2001-02-22 | Lasttrennschalter |
JP2001577570A JP4496698B2 (ja) | 2000-04-14 | 2001-02-22 | 回路遮断器 |
TW090105371A TW494421B (en) | 2000-04-14 | 2001-03-08 | Circuit breaker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2000/002461 WO2001080268A1 (fr) | 2000-04-14 | 2000-04-14 | Interrupteur de circuit |
JPPCT/JP00/02461 | 2000-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001080269A1 true WO2001080269A1 (fr) | 2001-10-25 |
Family
ID=11735923
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/002461 WO2001080268A1 (fr) | 2000-04-14 | 2000-04-14 | Interrupteur de circuit |
PCT/JP2001/001301 WO2001080269A1 (fr) | 2000-04-14 | 2001-02-22 | Disjoncteur |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/002461 WO2001080268A1 (fr) | 2000-04-14 | 2000-04-14 | Interrupteur de circuit |
Country Status (9)
Country | Link |
---|---|
US (1) | US6570481B2 (ja) |
JP (1) | JP4496698B2 (ja) |
KR (1) | KR100454114B1 (ja) |
CN (2) | CN1217370C (ja) |
CA (1) | CA2370476C (ja) |
DE (1) | DE10191111B4 (ja) |
TW (1) | TW444220B (ja) |
WO (2) | WO2001080268A1 (ja) |
ZA (1) | ZA200109388B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006196242A (ja) * | 2005-01-12 | 2006-07-27 | Fuji Electric Holdings Co Ltd | 回路遮断器 |
JP2011071048A (ja) * | 2009-09-28 | 2011-04-07 | Mitsubishi Electric Corp | 消弧用絶縁成型物、および、それを用いた回路遮断器 |
KR101447042B1 (ko) | 2013-11-19 | 2014-10-06 | 엘에스산전 주식회사 | 투입하중증가수단을 구비한 배선용 차단기 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10254259A1 (de) * | 2002-11-21 | 2004-06-03 | Abb Patent Gmbh | Verfahren zur Herstellung eines Gehäuses für ein elektrisches Schaltgerät |
JP4395022B2 (ja) * | 2004-07-13 | 2010-01-06 | 三菱電機株式会社 | 回路遮断器 |
US20080061037A1 (en) * | 2006-09-07 | 2008-03-13 | Thangavelu Asokan | Composite arc suppression device |
US20080073326A1 (en) * | 2006-09-21 | 2008-03-27 | Thangavelu Asokan | Ablative Circuit Interruption Device |
JP4906881B2 (ja) * | 2009-03-27 | 2012-03-28 | 富士電機機器制御株式会社 | 熱動形過負荷継電器 |
EP2515318B1 (en) * | 2011-04-20 | 2017-06-07 | Rockwell Automation Switzerland GmbH | Compact bus bar assembly, switching device and power distribution system |
US9475906B2 (en) * | 2013-02-07 | 2016-10-25 | Mitsubishi Electric Corporation | Arc-extinguishing insulation material molded product and gas circuit breaker including the same |
US20160240335A1 (en) * | 2015-02-17 | 2016-08-18 | General Electric Company | Circuit breaker crossbar assembly and method |
US10577832B2 (en) | 2016-11-03 | 2020-03-03 | Schlage Lock Company Llc | Dual function security/fire locking mechanism for fire rated devices |
US10340103B2 (en) * | 2017-09-12 | 2019-07-02 | Siemens Industry, Inc. | Switching assemblies with integral handle and rotor and methods of assembly |
JP7010706B2 (ja) * | 2018-01-10 | 2022-01-26 | デクセリアルズ株式会社 | ヒューズ素子 |
US10847333B2 (en) * | 2018-09-17 | 2020-11-24 | Siemends Industry, Inc. | Circuit breakers including dual triggering devices and methods of operating same |
KR102339324B1 (ko) | 2021-01-15 | 2021-12-16 | 조영창 | 전자회로의 온도 예측 및 관리방법 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01286224A (ja) * | 1988-05-12 | 1989-11-17 | Matsushita Electric Works Ltd | 回路しや断器 |
JPH05202277A (ja) * | 1991-09-11 | 1993-08-10 | Mitsubishi Electric Corp | 高熱伝導性低収縮湿式不飽和ポリエステル系樹脂組成物およびそれを用いた回路遮断器 |
JPH0668769A (ja) * | 1992-08-21 | 1994-03-11 | Matsushita Electric Works Ltd | 回路遮断器 |
JPH07404A (ja) * | 1993-02-09 | 1995-01-06 | Ethicon Inc | 受け器なし外科用フアスナー |
JPH08171831A (ja) * | 1994-12-16 | 1996-07-02 | Mitsubishi Electric Corp | 開閉器の絶縁構成物 |
JPH10294054A (ja) * | 1997-04-21 | 1998-11-04 | Hitachi Ltd | 回路遮断器 |
JPH11288653A (ja) * | 1999-02-19 | 1999-10-19 | Mitsubishi Electric Corp | 開閉器及びその開閉器用ベ―スの製造方法 |
JP3016344B2 (ja) * | 1994-12-19 | 2000-03-06 | 三菱電機株式会社 | 開閉器 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3786041A (en) * | 1972-12-08 | 1974-01-15 | Standard Oil Co | Melamine-formaldehyde resin containing alumina hydrate |
US3912671A (en) * | 1974-05-23 | 1975-10-14 | Denki Kagaku Kogyo Kk | Flame-retardant resinous composition |
JPS59140242A (ja) * | 1983-01-31 | 1984-08-11 | Shin Etsu Chem Co Ltd | 難燃性ゴム組成物 |
US4668718A (en) * | 1984-10-05 | 1987-05-26 | Ciba-Geigy Corporation | Self-extinguishing, track-resistant epoxy resin moulding composition and use thereof |
JPH07113072B2 (ja) * | 1988-07-25 | 1995-12-06 | 株式会社ボロンインターナショナル | 自消性重合体組成物 |
US4950852A (en) * | 1989-04-03 | 1990-08-21 | General Electric Company | Electric circuit breaker arc chute composition |
JPH03163448A (ja) | 1989-11-21 | 1991-07-15 | Brother Ind Ltd | 画像形成装置 |
US4975551A (en) * | 1989-12-22 | 1990-12-04 | S & C Electric Company | Arc-extinguishing composition and articles manufactured therefrom |
US5216063A (en) * | 1990-01-13 | 1993-06-01 | Bip Chemicals Limited | Polyamide compositions |
US5147918A (en) * | 1991-06-12 | 1992-09-15 | Hoechst Celanese Corporation | Low wear polyamide compositions containing aluminosilicate ceramic fiber |
US5166651A (en) * | 1991-07-26 | 1992-11-24 | General Electric Company | Molded case circuit breaker arc exhaust gas controller |
US5290835A (en) * | 1991-10-01 | 1994-03-01 | Teijin Limited | Electrical and electronic parts formed of polybutylene naphthalenedicarboxylate |
US5304761A (en) * | 1992-02-18 | 1994-04-19 | General Electric Company | Arc-proof molded case circuit breaker |
TW293130B (ja) * | 1994-03-10 | 1996-12-11 | Mitsubishi Electric Corp | |
JP3390112B2 (ja) * | 1995-10-16 | 2003-03-24 | 三菱電機株式会社 | 回路遮断器 |
JP3853862B2 (ja) * | 1995-12-13 | 2006-12-06 | 三菱電機株式会社 | 回路遮断器 |
JP3651096B2 (ja) * | 1996-02-13 | 2005-05-25 | 東レ株式会社 | 携帯機器用筐体 |
JPH10321112A (ja) * | 1997-05-19 | 1998-12-04 | Mitsubishi Electric Corp | 回路遮断器の筐体 |
JPH113648A (ja) | 1997-06-11 | 1999-01-06 | Mitsubishi Electric Corp | 開閉器および開閉器のクロスバーの製造方法 |
JP2000067730A (ja) | 1998-08-24 | 2000-03-03 | Fuji Electric Co Ltd | 回路しゃ断器 |
JP2001093394A (ja) * | 1999-09-28 | 2001-04-06 | Mitsubishi Electric Corp | 回路遮断器 |
JP2001123041A (ja) * | 1999-10-26 | 2001-05-08 | Fudow Co Ltd | フェノール樹脂成形材料 |
-
2000
- 2000-04-14 WO PCT/JP2000/002461 patent/WO2001080268A1/ja unknown
- 2000-04-25 TW TW089107720A patent/TW444220B/zh not_active IP Right Cessation
-
2001
- 2001-02-22 CN CN018008550A patent/CN1217370C/zh not_active Expired - Lifetime
- 2001-02-22 JP JP2001577570A patent/JP4496698B2/ja not_active Expired - Lifetime
- 2001-02-22 CA CA002370476A patent/CA2370476C/en not_active Expired - Fee Related
- 2001-02-22 WO PCT/JP2001/001301 patent/WO2001080269A1/ja active Application Filing
- 2001-02-22 DE DE10191111T patent/DE10191111B4/de not_active Expired - Lifetime
- 2001-02-22 KR KR10-2001-7016065A patent/KR100454114B1/ko active IP Right Grant
- 2001-02-22 US US09/980,590 patent/US6570481B2/en not_active Expired - Lifetime
- 2001-02-22 CN CNB200510052615XA patent/CN100449672C/zh not_active Expired - Lifetime
- 2001-11-14 ZA ZA200109388A patent/ZA200109388B/en unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01286224A (ja) * | 1988-05-12 | 1989-11-17 | Matsushita Electric Works Ltd | 回路しや断器 |
JPH05202277A (ja) * | 1991-09-11 | 1993-08-10 | Mitsubishi Electric Corp | 高熱伝導性低収縮湿式不飽和ポリエステル系樹脂組成物およびそれを用いた回路遮断器 |
JPH0668769A (ja) * | 1992-08-21 | 1994-03-11 | Matsushita Electric Works Ltd | 回路遮断器 |
JPH07404A (ja) * | 1993-02-09 | 1995-01-06 | Ethicon Inc | 受け器なし外科用フアスナー |
JPH08171831A (ja) * | 1994-12-16 | 1996-07-02 | Mitsubishi Electric Corp | 開閉器の絶縁構成物 |
JP3016344B2 (ja) * | 1994-12-19 | 2000-03-06 | 三菱電機株式会社 | 開閉器 |
JPH10294054A (ja) * | 1997-04-21 | 1998-11-04 | Hitachi Ltd | 回路遮断器 |
JPH11288653A (ja) * | 1999-02-19 | 1999-10-19 | Mitsubishi Electric Corp | 開閉器及びその開閉器用ベ―スの製造方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006196242A (ja) * | 2005-01-12 | 2006-07-27 | Fuji Electric Holdings Co Ltd | 回路遮断器 |
JP4552655B2 (ja) * | 2005-01-12 | 2010-09-29 | 富士電機ホールディングス株式会社 | 回路遮断器 |
JP2011071048A (ja) * | 2009-09-28 | 2011-04-07 | Mitsubishi Electric Corp | 消弧用絶縁成型物、および、それを用いた回路遮断器 |
KR101447042B1 (ko) | 2013-11-19 | 2014-10-06 | 엘에스산전 주식회사 | 투입하중증가수단을 구비한 배선용 차단기 |
Also Published As
Publication number | Publication date |
---|---|
US20030048169A1 (en) | 2003-03-13 |
WO2001080268A1 (fr) | 2001-10-25 |
KR100454114B1 (ko) | 2004-10-26 |
KR20020021125A (ko) | 2002-03-18 |
CN1217370C (zh) | 2005-08-31 |
CN100449672C (zh) | 2009-01-07 |
JP4496698B2 (ja) | 2010-07-07 |
DE10191111B4 (de) | 2005-06-16 |
US6570481B2 (en) | 2003-05-27 |
CA2370476A1 (en) | 2001-10-25 |
DE10191111T1 (de) | 2002-04-11 |
CN1366697A (zh) | 2002-08-28 |
CA2370476C (en) | 2005-04-05 |
TW444220B (en) | 2001-07-01 |
ZA200109388B (en) | 2003-02-14 |
CN1652280A (zh) | 2005-08-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2001080269A1 (fr) | Disjoncteur | |
JP3016344B2 (ja) | 開閉器 | |
CA2572987C (en) | Arc-extinguishing composition and articles manufactured therefrom | |
US4950852A (en) | Electric circuit breaker arc chute composition | |
AU2009202223B2 (en) | Metal-hydrate containing arc-extinguishing compostions and methods | |
GB2137418A (en) | Braidless movable contact with wiping action | |
TW563151B (en) | Circuit breaker | |
JP3359422B2 (ja) | 消弧用絶縁材料組成物、消弧用絶縁材料成形体およびそれらを用いた消弧装置 | |
EP1475817B1 (en) | Circuit breaker | |
JP3298340B2 (ja) | 開閉器の絶縁構成物 | |
KR101232453B1 (ko) | 회로차단기 | |
US7202427B2 (en) | Switch contact arrangement comprising a device for increasing a contact-force acting between switch contacts | |
WO1998036028A1 (fr) | Composition de resine polyester, interrupteurs produits a partir de ladite composition et procede de production desdits interrupteurs | |
TW494421B (en) | Circuit breaker | |
CA1066748A (en) | Visible blade switch | |
JP2001093394A (ja) | 回路遮断器 | |
WO2019116945A1 (ja) | 消弧用絶縁材料成形体及び回路遮断器 | |
CN108461359A (zh) | 具有可分离电触点和空气开关的用于电流的开关设备 | |
JPH113648A (ja) | 開閉器および開閉器のクロスバーの製造方法 | |
CN117373876A (zh) | 断路器和配电柜 | |
JP2001229801A (ja) | 回路遮断器 | |
KR20030005406A (ko) | 회로 차단기 | |
JP2001357769A (ja) | 多極回路遮断器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 01800855.0 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2001 577570 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2370476 Country of ref document: CA Ref document number: 2370476 Country of ref document: CA Kind code of ref document: A |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA CN DE IN JP KR US ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001/09388 Country of ref document: ZA Ref document number: 200109388 Country of ref document: ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09980590 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: IN/PCT/2001/1734/CHE Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020017016065 Country of ref document: KR |
|
RET | De translation (de og part 6b) |
Ref document number: 10191111 Country of ref document: DE Date of ref document: 20020411 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10191111 Country of ref document: DE |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |