WO2020175030A1 - 接触子、接触子の製造方法、遮断器および開閉器 - Google Patents
接触子、接触子の製造方法、遮断器および開閉器 Download PDFInfo
- Publication number
- WO2020175030A1 WO2020175030A1 PCT/JP2020/004090 JP2020004090W WO2020175030A1 WO 2020175030 A1 WO2020175030 A1 WO 2020175030A1 JP 2020004090 W JP2020004090 W JP 2020004090W WO 2020175030 A1 WO2020175030 A1 WO 2020175030A1
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- WO
- WIPO (PCT)
- Prior art keywords
- contact
- notch
- base metal
- contactor
- notches
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/02—Contacts characterised by the material thereof
- H01H1/021—Composite material
- H01H1/023—Composite material having a noble metal as the basic material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
- H01H11/06—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier
Definitions
- the present invention relates to a contactor in which a contact is joined to a base metal, a method for manufacturing the contactor, a circuit breaker, and a switch.
- a contactor that switches between circuit interruption and conduction is used in a circuit breaker and a switch.
- the contactor includes a contact and a base metal to which the contact is joined.
- the contacts and base metal are made of different materials.
- the contacts are joined to the base metal by brazing, resistance welding or caulking.
- the contacts may be bonded to the base metal by ultrasonic bonding.
- ultrasonic bonding ultrasonic vibration is applied to a contactor through a horn that is in contact with the contactor while applying pressure to bring the base metal and the contact into close contact.
- Ultrasonic welding can eliminate the disadvantages of brazing and resistance welding, which require softening of the base metal due to heat and the need for metal activators such as flux.
- Patent Document 1 discloses a technique in which a plurality of grooves are formed side by side on a base metal or a contact to improve the bonding strength in ultrasonic bonding while suppressing the displacement between the base metal and the contactor.
- Patent Document 1 Japanese Patent Laid-Open No. 60-2500 891
- the present invention has been made in view of the above, and is a contactor capable of extending the service life of a circuit breaker and a switch while suppressing the displacement between a base metal and a contact in ultrasonic bonding.
- the purpose is to get.
- the present invention provides a first surface, and a second surface facing the direction opposite to the first surface and parallel to the first surface, A base metal having a first surface and a third surface perpendicular to the second surface, a contact point fixed to the third surface of the base metal, and a contact between the base metal and the contact, which has hardness Of the contact point facing away from the base metal and the two first sides parallel to the normal direction of the first surface. And a first notch extending along the first side is formed in at least a part of the first side.
- FIG. 1 A circuit breaker or switch using the contact according to the first embodiment of the present invention ⁇ 2020/175030 3 (:171? 2020/004090
- FIG. 2 Side view of the contact according to the first embodiment.
- FIG. 3 A view of the contactor along the arrow I I ⁇ shown in Fig. 2.
- FIG. 4 View of the contactor along the arrow I V shown in Fig. 2.
- FIG. 5 Sectional view taken along the line V _ V shown in Fig. 3.
- FIG. 6 is a side view of the contact according to the first modification of the first embodiment.
- FIG.7 View of contactor along arrow V I I shown in Fig. 6.
- FIG. 9 Sectional view taken along the line X-IX shown in Fig. 7.
- FIG. 10 is a diagram showing a schematic configuration of a contact according to a second modification of the first embodiment.
- FIG. 11 Side view of a contact according to Modification 3 of Embodiment 1.
- FIG. 12 View of contact points along arrow X ⁇ ⁇ shown in Fig. 11
- FIG. 13 Sectional view taken along the line X I I I-X I I shown in Fig. 11.
- FIG. 14 Side view of a contact according to a modification 4 of the first embodiment.
- FIG.15 View of contacts along arrow XV shown in Fig.14.
- FIG. 16 Sectional view taken along the line X V I-X V I shown in Fig. 14.
- FIG. 17 Side view of a contact according to a modification 5 of the first embodiment.
- FIG. 19 View of the contactor along the arrow XX shown in Fig. 18.
- FIG. 20 A front view showing a schematic configuration of a contactor manufacturing apparatus according to the first embodiment.
- FIG. 21 A side view showing a schematic configuration of the contactor manufacturing apparatus according to the first embodiment.
- FIG. 22 is a view showing a flowchart of the method for manufacturing the contact according to the first embodiment.
- FIG. 23 Side view of a contact according to modification 6 of the first embodiment.
- FIG. 24 A view of the contacts along the arrow X X ⁇ V shown in Fig. 23.
- FIG.25 View of contactor along arrow X X V shown in Fig. 23.
- FIG. 26 Side view of a contact according to Modification 7 of Embodiment 1.
- FIG.27 View of contact points along arrow XXV ⁇ shown in Fig. 26 ⁇ 2020/175030 4 ⁇ (:171? 2020 /004090
- a contactor, a method for manufacturing the contactor, a circuit breaker, and a switch according to an embodiment of the present invention will be described below in detail with reference to the drawings.
- the present invention is not limited to this embodiment.
- FIG. 1 is a diagram showing a schematic configuration of a current-carrying portion of a circuit breaker or a switch using a contactor according to a first embodiment of the present invention.
- the circuit breaker or the switch is not shown in the figure because a publicly known one may be used for the part excluding the conducting part.
- the contactor 1 shown in FIG. 1 is mainly used for a low voltage circuit breaker. In the following description, the case of using it for a low voltage circuit breaker will be described, but it may be used for a high voltage circuit breaker or a switch.
- the contactor 1 used for the current-carrying part of the circuit breaker is roughly classified into a contactor 13 which is a fixed contactor fixed to the casing of the circuit breaker and a contactor 1 which is a movable movable contactor. There are two of them.
- the peeling mechanism 2 is connected to the contact 1 claw. Contact 1 When a current exceeding the design value flows in one bowl, the peeling mechanism 2 moves the contact 1 bowl and physically peels it from the contact 13 to cut off the current.
- the contactor 1 includes a contact 4 and a base metal 3.
- one contact 1 is provided on each of the movable side and the fixed side, but the number may be changed as appropriate according to the voltage and current that must be interrupted.
- one fixed-side contactor 1 and one movable-side contactor 1 may be provided.
- the contactor 1 may be used on the movable side or the fixed side.
- FIG. 2 is a side view of the contact according to the first embodiment.
- Fig. 3 is a view of the contactor taken along the arrow ⁇ shown in Fig. 2.
- Figure 4 shows the arrow V shown in Figure 2. ⁇ 2020/175030 5 (:171? 2020/004090
- the base metal 3 includes a first surface 33 and a first surface 3 3 facing in a direction opposite to the first surface 33.
- the first surface 33 and the second surface 313 are surfaces that are parallel to the direction in which the base metal 3 and the contact point 4 are stacked and that extend from the contact point 4 toward the peeling mechanism 2.
- the contact 4 is joined and fixed to the third surface 30 of the base metal 3.
- Contact 4 and base metal are joined and fixed to the third surface 30 of the base metal 3.
- the intermediate metal 5 is a conductive member.
- the surface facing the direction opposite to the base metal 3 has a rectangular shape, and the first surface
- first sides 4 3 parallel to the normal direction of 3 3 and two second sides 4 3 which connect the ends of the two first sides 4 3.
- the first side 43 is the short side of the rectangle and the second side 4 is the long side of the rectangle.
- the first side 43 is formed with a notch 41 which is a first notch extending along the first side 43.
- the notch 41 may be formed on both of the two first sides 43, or may be formed only on one of the first sides 43. No unevenness other than the notch 41 is formed on the surface of the contact point 4 facing away from the base metal 3.
- 3 be the maximum length of contact 4 along the first side 43.
- 13 be the maximum length of contact 4 along the second side 4 13.
- the length of the contact point 4 along the direction in which the base metal 3 and the contact point 4 are stacked is ⁇ .
- the maximum length of the notch 4 1 along the first side 4 3 be 3 1 .
- the maximum length of the notch 4 1 along the second edge 4 be 13 1 .
- the length of the notch 4 1 along the direction in which the base metal 3 and the contact 4 are overlapped is 0 1 .
- the notches 4 1 formed on the two first sides 4 3 are 3 s! , It is desirable that each of the two becomes equal. However, depending on the shape of contact 4, 3 1 ,
- the cutout 4 1 provided in the contact 4 is preferably small.
- the maximum length of notch 4 1! Has a great influence on the size of the contact area between the contacts 4, so it is desirable to make it as small as possible.
- the notch 4 1 formed in the first side 4 3 is formed symmetrically with respect to the center line 50 of the first side 4 8. There is. Further, as shown in FIG. 5, the notches 4 1, a plane parallel to the first side 4 3, is formed in the third surface 3_Rei parallel plane parallel to the first side 4 3 The plane parallel to the third plane 30 is perpendicular. The shape of the notch 4 1 is such that the shape of the notch 4 1 is rectangular.
- the shape of the base metal 3 is not limited to the square pole shape, and may be a columnar shape, an elliptic cylinder shape, or a polygonal pillar shape.
- the shape may be a combination of the above shapes.
- the contact point 4 has a quadrangular prism shape, it may have a cylindrical shape, or the corners may be chamfered.
- the surface of the contact 4 on the side opposite to the base metal 3 may be arcuate, and may be, for example, arcuate or spherical. Alternatively, the shape may be a combination of these shapes.
- FIG. 6 is a side view of the contact according to the first modification of the first embodiment.
- FIG. 7 is a view of the contactor taken along the arrow V ⁇ shown in FIG.
- FIG. 8 is a view of the contactor taken along the arrow V ⁇ shown in FIG. Fig. 9 shows the X- ⁇ 2020/175 030 7 ⁇ (: 171-1? 2020/004090
- the notch 4 1 is formed in a chamfered shape in which the first side 43 is chamfered. More specifically, it is a flat chamfered shape.
- the notches 4 1 formed in the two first sides 4 3 should have 0 1 equal to each other. Is desirable. However, depending on the shape of contact 4, 3 1 ,
- the chamfered notch 4 1 may be formed on the first side 43 on one side, and the rectangular notch 4 1 may be formed on the first side 43 on the other side.
- FIG. 10 is a diagram showing a schematic configuration of a contact according to the second modification of the first embodiment, and corresponds to a diagram of the contact as viewed along the arrow V ⁇ shown in FIG. It is a figure.
- the notch 4 1 is formed over the entire area of the first side 4 3 of the contact 4.
- the shape of the notch 41 may be rectangular or chamfered.
- FIG. 11 is a side view of the contact according to the third modification of the first embodiment.
- Figure 1
- FIG. 2 is a view of the contact points along the arrow X arrow in Fig. 11.
- FIG. 13 is a sectional view taken along the line X I I I -X I I I shown in FIG.
- a second notch extending along the second side 4c also extends along the second side 4c.
- a notch 43 is formed.
- the notch 43 has a chamfered shape in which the second side 4 is chamfered. More specifically, it has a chamfered shape.
- the notch 4 3 may be formed on both of the two second sides 4 13 or may be formed only on one of the second sides 4 3.
- cutout 41 On the surface of contact 4 facing away from base metal 3, cutout 41,
- the maximum length of the notch 4 3 along the first side 4 3 be.
- the maximum length of the notch 4 3 along the second edge 4 is the well 3 .
- the chamfer angle of notch 4 3 is 0 3 . Set so that 3 3 ⁇ 0.53, ⁇ 3 £ 6, 0 ° ⁇ 0 3 ⁇ 90 ° ⁇ 2020/175030 8 ((171?2020/004090).
- the notches 43 formed on the two second sides 4 should be 3 3 , 13 3 , 0 3 It is desirable that each of these be equal. However, 3 3 by the shape of the contact 4, since the optimum value of the spoon 3, 0 3 is determined, always Re their in notches 43 between 3 it 3, 1_Rei 3, 0 3 does not need to match. Note that one of the
- the chamfered cutout 43 may be formed, and the rectangular cutout 43 may be formed on the other second side 4.
- FIG. 14 is a side view of a contactor according to a modification 4 of the first embodiment.
- Figure 1
- Fig. 5 is a view of the contact point taken along the arrow XV shown in Fig. 14.
- FIG. 16 is a sectional view taken along the line XV-XVI shown in FIG.
- the notch 43 is formed over the entire area of the second side 4 of the contact 4.
- the notch 43 may have a chamfered shape as shown in FIGS. 14 to 16 or a rectangular shape.
- the notch 41 may be formed over the entire area of the first side 43 of the contact 4.
- FIG. 17 is a side view of the contact according to the fifth modification of the first embodiment.
- Figure 1
- FIG. 8 is a sectional view taken along the line XV ⁇ ⁇ -XV I I ⁇ shown in FIG.
- FIG. 19 is a view of the contactor taken along the arrow XX shown in FIG.
- the first surface 33 and the second surface 3 of the base metal 3 are used.
- a depression 3 1 is formed in 13. Let the maximum length of the base metal 3 along the direction in which the base metal 3 and the contact 4 overlap each other. The distance between the bottom surface of the depression 31 formed on the first surface 33 of the base metal 3 and the bottom surface of the depression 31 formed on the second surface 3 is set to 1. Let _ 1 be the maximum length of the depression 3 1 along the second sill. The maximum length of the dent 3 1 along the direction in which the base metal 3 and the contact 4 are stacked is 1. 1: 1 ⁇ 0. 51:,
- the depression 3 1 formed on the first surface 33 and the depression 3 1 formed on the second surface 3 may have the same shape. ⁇ 2020/175 030 9 ⁇ (: 171-1? 2020 /004090
- the shapes may be different.
- FIG. 20 is a front view showing a schematic configuration of the contactor manufacturing apparatus according to the first embodiment.
- FIG. 21 is a side view showing a schematic configuration of the contactor manufacturing apparatus according to the first embodiment.
- FIG. 22 is a view showing a flow chart of the method of manufacturing the contact according to the first embodiment.
- the base metal 3 formed by press working, cutting work, forging work, or the like is fixed to the fixed base 6 of the joining device 7, which is a manufacturing device.
- the base metal 3 is inserted between the movable part 68 and the fixed part 6 of the fixed base 6 to set (step 31).
- the movable part 63 is moved and sandwiched between the movable part 63 and the fixed part 6 to fix the base metal 3 (step 32).
- the movable portion 6 3 is movable like a screw or a pneumatic mechanism or a hydraulic mechanism, pressure can be applied to the base metal 3.
- the fixed part 6 is fixed to the joining device 7.
- the movable portion 63 is provided so that the base metal 3 immediately below the joint between the base metal 3 and the contact 4 can be pressurized.
- the movable portion 6 3 and the fixed portion 6 can be more firmly fixed by forming a convex portion that fits into the recess 31 on the and.
- the recess 3 1 is not formed in the base metal 3 in advance, but is sandwiched between the movable part 6 3 having the convex part and the fixed part 6 so that the recess 3 1 is formed in the base metal 3. It may be configured to be.
- the joining device 7 comprises a plurality of movable portions 6 3, it may be fixed by sandwiching the base metal 3 by a plurality of movable portions 6 3.
- the contact 4 is set on the third surface 30 of the base metal 3 (step 33).
- the contact 4 is installed with the surface on which the intermediate metal 5 is formed facing the third surface 30.
- the intermediate metal 5 may be formed on the third surface 30 of the base metal 3.
- the contact point 4 is bonded to the base metal 3 by pressing the contact point 4 toward the base metal 3 side with the pressing tool 8 of the bonding apparatus 7 and applying ultrasonic vibration (step 34).
- step 34 the interfaces between the base metal 3 and contact 4 rub against each other.
- the contact 4 and the base metal 3 can be joined without using a metal activator such as flux or a brazing material, and the manufacturing cost due to the elimination of the cleaning step, It can lead to material cost reduction and electric conductivity improvement.
- a metal activator such as flux or a brazing material
- the contact 4 is likely to be tilted or displaced during the joining process.
- a plurality of grooves may be formed side by side on the contact 4 and the base metal 3 by forming a groove or the like.
- the electric field is concentrated at the tips of the grooves and an arc is likely to occur. If the arc is easily generated, the service life of the circuit breaker and the switch using the contact 1 may be shortened due to the temperature rise when energized.
- the groove necessary for joining the openings or the like may serve as the starting point of the breakage, and the rigidity of the contact 4 itself may decrease.
- a convex portion that fits into the notches 4 1 and 4 3 formed in the contact 4 is formed in the portion of the pressure tool 8 that contacts the contact 4.
- the convex part of the pressure tool 8 fits into the notches 4 1 and 4 3 formed in the contact 4, causing the contact 4 to incline and position. It is possible to suppress the occurrence of slippage. In other words, it is possible to prevent the contact 4 from tilting or being displaced without providing the contact 4 and the base metal 3 with a shape such as a groove or a mountain.
- Forming tool 8 may be formed with a convex portion that fits into the notch 41.
- the contacts 4 before being joined to the base metal 3 do not have the notches 41 and 43, and as a result of the application of pressure and ultrasonic vibration by the pressure tool 8, Forming tool 8 ⁇ 2020/175 030 1 1 ⁇ (: 171-1? 2020 /004090
- the notches 4 1 and 4 3 may be formed by transferring the shape of the formed convex portion.
- the notch 4 1 is formed symmetrically with respect to the center line 50 of the first side 43, when the notch 4 1 is fitted with a convex portion and pressure is applied by the pressure tool 8. In addition, the contact 4 is less likely to tilt.
- the convex portion of the pressure tool 8 enters deeper, so that the inclination and displacement of the contact 4 can be more reliably suppressed. it can.
- the shapes of the notches 4 1 and 4 3 are chamfered, the amount of processing required to form the notches 4 1 and 4 3 can be suppressed and the manufacturing cost can be suppressed.
- the contact points can be pressed by the whole of each side. , It becomes more difficult for the contact 4 to tilt.
- the 4 1, 4 3 notches or first side 4 3 was formed over the entire area of the second side 4 spoon is notched in a part of the first side 4 3 or the second side 4 13 It is possible to suppress the occurrence of burrs as compared with the case of forming 41 and 43.
- the contact 4 is less likely to be tilted and misaligned as compared with the case where the convex portion is inserted only in the notch 4 1.
- the contact 4 has at least part of at least a part of silver and tungsten, a tungsten carbide, or a graphite sintered material, or at least two of silver and tungsten, a tungsten carbide, and a graphite. It is preferable that it is formed by using a metal having a relatively high hardness in a combined sintered material. ⁇ 2020/175030 12 ⁇ (: 171-1? 2020/004090
- the base metal 3 is preferably formed by using electrolytic copper or oxygen-free copper.
- the intermediate metal 5 is preferably silver.
- the intermediate metal 5 can be previously formed on the contact 4 by a vacuum vapor deposition method, a plating method, or the like.
- the intermediate metal 5 can be previously formed on the base metal 3 by a vacuum deposition method, a plating method, or the like.
- the intermediate metal 5 can be formed on the surface of the contact 4 on the base metal 3 side by separation due to the difference in specific gravity in the constituent materials when the contact 4 is manufactured.
- the contact 4 is made of a sintered metal material having a high hardness, it is possible to minimize the wear of the contact 4 when the contactor 1 is used to cut off the current. Since the silver used for the intermediate metal 5 and the electrolytic copper or oxygen-free copper used for the base metal 3 are plastic flowable metals, when they are joined by ultrasonic welding, they flow plastically, Not only can the oxides on the interface be easily destroyed, but the bonding strength can also be increased by the fact that both are mixed on the interface.
- the contactor 1 does not have a brazing material, a metal active material such as flux is not required at the time of joining, which not only leads to a reduction in manufacturing and material costs, but also at a temperature equivalent to brazing at the time of current interruption. Even when the contact 1 is heated or exposed to the atmosphere, the brazing material does not melt and flow out, and the temperature resistance as an electric contact can be improved. Furthermore, since the silver used for the intermediate metal 5 and the electrolytic copper or oxygen-free copper used for the base metal 3 are the metals that are prone to plastic flow, when they are joined by ultrasonic welding, By doing so, not only the oxide on the interface can be easily broken, but also the bonding strength can be increased by mixing the two on the interface.
- FIG. 23 is a side view of the contact according to the modification 6 of the first embodiment.
- FIG. 24 is a view of the contacts taken along the arrow X X ⁇ V shown in FIG.
- FIG. 25 is a view of the contactor taken along the arrow X X V shown in FIG.
- notches 4 1 are formed at both ends of the first side 4 3 .
- the length 13 of the notch 41,, ⁇ varies depending on the shape and size of the contact 4. ⁇ 2020/175030 13 ⁇ (: 171-1? 2020/004090
- the lengths 3, 1, 13, and ⁇ of the respective notches 41 may be the same or different.
- the contact 4 is formed with a notch 4 3 which is obtained by chamfering the second side 4 sill over the entire area of the second side 4 sill. Notch 4 3 lengths 3 3, the angle 0 3 can be arbitrarily set.
- both ends of the first side 4 3 can be formed. That is, at the four corners of the quadrangle formed by the first side 43 and the second side 413, the contact 4 can be fixed by fitting the protrusions into the notches 4 1. This makes it possible to more firmly suppress the tilt and displacement of the contact 4 when ultrasonically bonding the contact 4 to the base metal 3.
- the notches 4 1 may be formed at the four corners, the size of the notches 4 1 can be made smaller. As a result, the reduction in the volume of the contact 4 that occurs due to the provision of the notch 4 1 can be suppressed, and when the contactor 1 is used as the contactor of the breaker or the circuit breaker, the temperature rise during energization It is possible to obtain the effect of suppressing the decrease in rigidity of the contact 4.
- FIG. 26 is a side view of the contact according to the modification 7 of the first embodiment.
- Figure 2
- Fig. 7 is a view of the contacts taken along the arrow X X V I shown in Fig. 26.
- Fig. 28 is a view of the contactor taken along the arrow X X V ⁇ ⁇ shown in Fig. 26.
- a chamfered notch 4 1 of 0, is formed.
- the length over the entire area of the second side 4 spoon 3 3 notch 4 3 angle 0 3 of the chamfered shape is formed.
- the angle and the angle 0 3 may be the same or different.
- Notch 4 1 long! The angle 0, and the notch 4 3 lengths 3 3, the angle 0 3 may be appropriately changed in accordance with the shape and size of the contacts 4.
- Notches 4 1 and 4 3 are formed in the entire area of the first side 4 3 and the entire area of the second side 4 ⁇ 2020/175030 14 ⁇ (: 171-1? 2020 /004090
- the contact portion 4 can be fixed by fitting the convex portion into the notches 4 1 and 4 3. This makes it possible to more strongly suppress the inclination and displacement of the contact 4 when ultrasonically bonding the contact 4 to the base metal 3.
- the chamfered shapes of the notches 4 1 and 4 3 can have the angles 0 1 and 0 3 as small as possible. Then, it is preferable to make the sizes of the notches 4 1 and 4 3 smaller. As a result, it is possible to suppress the reduction in the volume of the contact 4 that occurs due to the provision of the notch 41, and to suppress the temperature rise during energization when the contact 1 is used as the contact of the breaker or switch. The effect of suppressing the decrease in rigidity of the contact can be more reliably obtained.
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Abstract
Description
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN202080015071.2A CN113454740A (zh) | 2019-02-27 | 2020-02-04 | 触头、触头的制造方法、断路器以及开闭器 |
JP2021501821A JP7199504B2 (ja) | 2019-02-27 | 2020-02-04 | 接触子、接触子の製造方法、遮断器および開閉器 |
KR1020217026332A KR102583525B1 (ko) | 2019-02-27 | 2020-02-04 | 접촉자, 접촉자의 제조 방법, 차단기 및 개폐기 |
TW109105828A TWI718010B (zh) | 2019-02-27 | 2020-02-24 | 接觸件、接觸件的製造方法、斷路器及開閉器 |
Applications Claiming Priority (2)
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JP2019-034647 | 2019-02-27 | ||
JP2019034647 | 2019-02-27 |
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WO2020175030A1 true WO2020175030A1 (ja) | 2020-09-03 |
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PCT/JP2020/004090 WO2020175030A1 (ja) | 2019-02-27 | 2020-02-04 | 接触子、接触子の製造方法、遮断器および開閉器 |
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JP (1) | JP7199504B2 (ja) |
KR (1) | KR102583525B1 (ja) |
CN (1) | CN113454740A (ja) |
TW (1) | TWI718010B (ja) |
WO (1) | WO2020175030A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5624015U (ja) * | 1979-07-31 | 1981-03-04 | ||
JPS5778720A (en) * | 1980-10-31 | 1982-05-17 | Matsushita Electric Works Ltd | Method of welding contact with supersonic wave |
JPS5949115A (ja) * | 1982-09-11 | 1984-03-21 | 富士電機株式会社 | 電気接触子の製造方法 |
JPS60250891A (ja) * | 1984-05-25 | 1985-12-11 | Fuji Electric Co Ltd | 電気接触子の製造方法 |
JP2014232617A (ja) * | 2013-05-29 | 2014-12-11 | 三菱電機株式会社 | 遮断器用電気接触子およびその製造方法 |
-
2020
- 2020-02-04 WO PCT/JP2020/004090 patent/WO2020175030A1/ja active Application Filing
- 2020-02-04 CN CN202080015071.2A patent/CN113454740A/zh active Pending
- 2020-02-04 JP JP2021501821A patent/JP7199504B2/ja active Active
- 2020-02-04 KR KR1020217026332A patent/KR102583525B1/ko active IP Right Grant
- 2020-02-24 TW TW109105828A patent/TWI718010B/zh active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5624015U (ja) * | 1979-07-31 | 1981-03-04 | ||
JPS5778720A (en) * | 1980-10-31 | 1982-05-17 | Matsushita Electric Works Ltd | Method of welding contact with supersonic wave |
JPS5949115A (ja) * | 1982-09-11 | 1984-03-21 | 富士電機株式会社 | 電気接触子の製造方法 |
JPS60250891A (ja) * | 1984-05-25 | 1985-12-11 | Fuji Electric Co Ltd | 電気接触子の製造方法 |
JP2014232617A (ja) * | 2013-05-29 | 2014-12-11 | 三菱電機株式会社 | 遮断器用電気接触子およびその製造方法 |
Also Published As
Publication number | Publication date |
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CN113454740A (zh) | 2021-09-28 |
KR102583525B1 (ko) | 2023-09-26 |
TW202040612A (zh) | 2020-11-01 |
KR20210114512A (ko) | 2021-09-23 |
TWI718010B (zh) | 2021-02-01 |
JPWO2020175030A1 (ja) | 2021-09-30 |
JP7199504B2 (ja) | 2023-01-05 |
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