KR102420675B1 - Contactor and method for manufacturing the contactor - Google Patents

Abstract

The movable contact 12 includes a second price 32 and a second contact 42 fixed to the second price 32 . The movable contact 12 is provided between the second price 32 and the second contact 42 , and has a hardness lower than that of the second contact 42 and a second intermediate member 62 , which is a conductive member capable of plastic flow. to provide A jig provided on the outer peripheral surface of the second price 32, in a direction perpendicular to the arrangement direction of the second price 32, the second intermediate member 62, and the second contact point 42, is provided in the movable part of the ultrasonic welding machine. A concave portion is formed into which is fitted.

Description

Contactor and method for manufacturing the contactor

The present invention relates to a contact having a contactor, such as a circuit breaker, a switchgear, and a method for manufacturing the contact.

A contactor such as a circuit breaker or a switch includes a movable contactor and a fixed contactor. Each of the movable contact and the fixed contact is constituted by a contact and a price on which the contact is provided.

There exist a soldering method, a resistance welding method, etc. as the joining method of the contact point to a price. However, in such a bonding method, a flux for activating the metal interface is required, and a cleaning step after bonding of the contact to the metal is required. In addition, in this bonding method, since the contact becomes high temperature at the time of joining the contact to the metal, there is a fear that the contact and the metal may soften.

As a countermeasure against these, in recent years, many ultrasonic bonding methods are employed as a method of bonding a contact to a metal. Patent Document 1 discloses a method for manufacturing a contact using an ultrasonic bonding method.

In Patent Document 1, after the Daegeum and the contact point are inserted by the horn of the ultrasonic welding machine and the anvil of the ultrasonic welding machine, ultrasonic vibration is applied from the horn to the Daegeum and the contact point in a state where pressure is applied. The horn is a resonator that transfers vibrational energy to the contact point. The anvil is a jig for positioning and fixing the payment at the same time. When ultrasonic vibration is applied to the contact, ultrasonic welding is performed on the contact surface of the metal and the contact.

Japanese Patent Laid-Open No. Hei 03-38033

However, in the technique disclosed in Patent Document 1, in order to prevent slipping that occurs between the contact point and the price when ultrasonic vibration is applied, a plurality of grooves are provided on the surface of the contact point side of the metal plate, and when ultrasonic vibration is applied, In order to prevent slippage occurring between the anvil and the anvil, an uneven-shaped knurling is applied to the end of the anvil on the daisy side. In addition, in the technique disclosed in Patent Document 1, in order to prevent slippage occurring between the horn and the contact point when ultrasonic vibration is applied, an uneven knurling is applied to the end of the horn on the contact point side. When a pressure is applied to the daegeum and the contact point, a plurality of minute projections are formed in a portion in contact with the horn in the end face of the daegeum on the anvil side. When such a daegeum is used for a contactor, when the contactor operates to cut off, an arc, which should originally be generated between two contact points facing each other, is formed in a plurality of grooves formed in the datum, other than the area where the contact and the daegeum face each other It also occurs between the grooves formed in the In addition, the arc mentioned above is concentrated and generated between the front-end|tip of the minute projection formed in one contact point, and the tip of the minute projection formed in the other contact point. Therefore, the time during which the contact point and the price are exposed to the arc becomes long, and there is a problem that the consumption of the contact point and the price is accelerated.

The present invention has been made in view of the above, and an object of the present invention is to obtain a contact capable of suppressing the progress of consumption of a contact connected to a price by ultrasonic welding.

In order to solve the above problems and achieve the object, the contactor of the present invention includes a price and a contact point fixed to the price. The contactor is provided between the datum and the contact, and includes a conductive member having a hardness lower than that of the contact and capable of plastic flow. The outer circumferential surface of the daegeum is characterized in that a concave portion is formed in a direction perpendicular to the arrangement direction of the daegeum, the conductive member and the contact point, and a jig provided in the movable part of the ultrasonic welding machine is inserted thereinto.

ADVANTAGE OF THE INVENTION According to this invention, the effect that progress of consumption of the contact connected to a price by ultrasonic welding can be suppressed is achieved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the contactor which concerns on embodiment of this invention.
Fig. 2 is a diagram showing details of the configuration of the movable contact shown in Fig. 1;
Fig. 3 is a view showing a manufacturing process of the movable contact shown in Fig. 2;
Fig. 4 is a view showing an ultrasonic welding machine used in the manufacturing process of the movable contact shown in Fig. 2;
5 is a configuration diagram of a second price according to a modification of the embodiment of the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a contactor and a method for manufacturing a contactor according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment.

embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the structure of the contactor which concerns on embodiment of this invention. FIG. 2 is a diagram showing details of the configuration of the movable contact shown in FIG. 1 .

1 shows a contactor 100 with a contactor 1 according to an embodiment of the invention. The contactor 100 is a low-voltage or high-voltage circuit breaker, switch, or the like having a function of opening a contact when an overcurrent occurs in the distribution line.

The contactor (1) has a fixed contactor (11), a movable contactor (12) and a separation mechanism (2).

The movable contactor 12 is physically separated from the fixed contactor 11 by the separation mechanism 2 when a current of a certain level or more flows through the circuit in which the contactor 100 is provided. Thereby, the electric current flowing in the electric path to which the contactor 1 is connected is interrupted|blocked.

The fixed contactor 11 includes a first datum 31 having a rectangular shape that is a conductive fixing piece fixed to a housing (not shown) constituting the contactor 100 , a first contact 41 , which is a fixed contact, and a first price. A first intermediate member 61 serving as a conductive member is provided between the 31 and the first contact 41 .

Hereinafter, in the XYZ coordinates of the left hand system, the arrangement direction of the first price 31 , the first intermediate member 61 , and the first contact point 41 is set to the X-axis direction, and the direction orthogonal to the X-axis direction is defined as Let it be a Y-axis direction, and let the direction orthogonal to both of an X-axis direction and a Y-axis direction be a Z-axis direction.

As a material of the first price 31, electrolytic copper or oxygen-free copper can be exemplified.

In Fig. 1, among the six cross-sections of the first price 31, a first end surface 3A, a second end surface 3B, a third end surface 3C, a fourth end surface 3D, and a fifth end surface ( 3E) is shown.

The first end face 3A of the first price 31 is a cross section on the movable contact 12 side of the first price 31 . The second end face 3B of the first price 31 is a cross section on the opposite side to the movable contact 12 side of the first price 31 .

The third end face 3C of the first price 31 is one end face among the two end faces in the Y-axis direction. The fourth end surface 3D of the first datum 31 is the other end surface of the two cross-sections in the Y-axis direction.

The fifth end face 3E of the first price 31 is a first in a direction in which a normal line perpendicular to the surface including the first contact 41, the first intermediate member 61 and the first price 31 extends. is the side The direction in which the normal line extends is the same as the Z-axis direction. A sixth end face is formed on the opposite side to the first face side of the first price 31 .

A concave portion 300 concave toward the sixth end surface from the fifth end surface 3E is provided in the fifth end surface 3E of the first pedestal 31 . On the 6th end face side of the 1st price 31, the recessed part 301 similar to the recessed part 300 is provided.

The first intermediate member 61 is in contact with the first end face 3A of the first price 31 . As the material of the first intermediate member 61, a conductive material having a hardness lower than that of the first contact 41 and capable of plastic flow is used. Silver can be illustrated as this electroconductive material.

The first intermediate member 61 is separated by a difference in specific gravity of a plurality of materials constituting the first contact 41 when the first contact 41 is manufactured, for example. It is formed by hardening on the surface of the 1st price 31 side. The first intermediate member 61 can be formed on the surface of the first contact 41 on the side of the first price 31 by a vacuum deposition method, a plating method, or the like, in addition to separation due to a difference in specific gravity. When a compressive stress is applied to the first contact 41 from the first price 31 during ultrasonic welding of the first contact 41 to the first price 31 by using the first intermediate member 61 . , the first intermediate member 61 starts to plastically flow before the first contact 41 plastically flows. Accordingly, the load applied to the first contact 41 is relieved, and the brittle fracture of the first contact 41 is suppressed. Further, the bonding strength of the first contact 41 to the first price 31 in the solid state is improved.

The first contact 41 is fixed to the first price 31 via the first intermediate member 61 . As the material of the first contact 41 , a sintered metal having a hardness higher than that of the first intermediate member 61 is used. Examples of the sintered metal include a silver tungsten alloy, tungsten carbide, a composite alloy of silver and copper, and silver graphite.

The movable contactor 12 has a square-shaped second price 32, which is a conductive movable piece operated by the separation mechanism 2, a second contact 42, which is a movable contact, and the second price 32 and the second price. A second intermediate member 62 which is a conductive member provided between the two contact points 42 is provided.

As the material of the second price 32, the same material as that of the first price 31 is used.

In Fig. 1, among the six end surfaces of the second base 32, a first end surface 3A, a second end surface 3B, a third end surface 3C, a fourth end surface 3D, and a sixth end surface ( 3F) is shown.

The first end face 3A of the second price 32 is a cross section on the side of the fixed contact 11 of the second price 32 . The second end face 3B of the second price 32 is a cross section on the opposite side to the fixed contact 11 side of the second price 32 .

The third end face 3C of the second base 32 is one end face among the two end faces in the Y-axis direction. The fourth end face 3D of the second datum 32 is the other end face among the two cross sections in the Y-axis direction.

The sixth end face 3F of the second price 32 is a first in a direction in which a normal line perpendicular to the surface including the second contact point 42 , the second intermediate member 62 and the second price point 32 extends. is the side The direction in which the normal line extends is the same as the Z-axis direction. Further, in the second price 32 , a fifth end face is formed on the opposite side to the first face side of the second price 32 .

On the side of the 6th end surface 3F of the 2nd price 32, the recessed part 301 recessed toward the 5th end surface from the 6th end surface 3F is provided. On the 5th end face side of the 2nd price 32, the recessed part 300 similar to the recessed part 301 is provided.

A second intermediate member 62 is in contact with the first end face 3A of the second price 32 . As the material of the second intermediate member 62 , the same material as that of the first intermediate member 61 is used.

The second intermediate member 62 is separated by a difference in specific gravity of a plurality of materials constituting the second contact point 42 when the second contact point 42 is manufactured, for example. It is formed by hardening on the surface of the second price 32 side. The second intermediate member 62 can be formed on the surface of the second contact point 42 on the second price 32 side by a vacuum deposition method, a plating method, or the like, in addition to separation due to a difference in specific gravity. When a compressive stress is applied to the second contact 42 from the second price 32 during ultrasonic welding of the second contact 42 to the second price 32 by using the second intermediate member 62 . , the second intermediate member 62 begins to plastically flow before the second contact 42 plastically flows. Therefore, the load applied to the second contact point 42 is relieved, and the brittle fracture of the second contact point 42 is suppressed. Further, the bonding strength of the second contact point 42 to the second price 32 in the solid state is improved.

The second contact point 42 is fixed to the second price 32 via the second intermediate member 62 . As the material of the second contact 42 , the same sintered metal as the material of the first contact 41 is used.

The fixed contact 11 and the movable contact 12 configured as described above are disposed in the contactor 100 so that the first contact 41 faces the second contact 42 .

Also, in the contactor 100 shown in FIG. 1, one fixed contact 11 and one movable contact 12 are provided, respectively, but the number of each of the fixed contact 11 and the movable contact 12 is not limited to one. Instead, the number may be plural according to the number of distribution lines connected to the contactor 100 .

Next, the details of the shape of the concave portion 300 and the concave portion 301 and specific examples of the dimensions of the fixed contact 11 and the movable contact 12 will be described. Hereinafter, the movable contact 12 will be described, and the fixed contact 11 will be abbreviated as having the same configuration as the movable contact 12 .

In Fig. 2, the first side surface, the second contact 42, the second intermediate member 62, and the second price 32 as seen from the fifth end face 3E of the second price 32, and the second price 32, The second side of the second daegeum 32 as viewed from the sixth cross-section 3F is shown. The cross-section is a cross-section viewed from arrows A-A shown in FIG. 2 .

In the second price 32, a step portion 300b and a step portion 301b are formed. The step portion 300b corresponds to the boundary portion between the bottom surface 300a of the concave portion 300 and the fifth end surface 3E. The step portion 301b corresponds to the boundary portion between the bottom surface 301a of the concave portion 301 and the sixth end surface 3F.

The dimensions of the movable contact 12 are set to satisfy t'<0.5t, b≤L'<L, b≤L''<L, W'<W, W''<W.

t is the width of the second price 32 in the Z-axis direction. t' is the width in the Z-axis direction from the bottom surface 300a of the concave portion 300 to the bottom surface 301a of the concave portion 301 . L is the width of the second price 32 in the Y-axis direction. L' is the width of the bottom surface 300a of the concave portion 300 in the Y-axis direction. L'' is the width of the bottom surface 301a of the concave portion 301 in the Y-axis direction. W is the width of the second price 32 in the X-axis direction. W' is the width of the bottom surface 300a of the concave portion 300 in the X-axis direction. W'' is the width of the bottom surface 301a of the concave portion 301 in the X-axis direction. b is the width of the second contact point 42 in the Y-axis direction.

For example, in the case of t = 5 mm, W = 20 mm, L = 100 mm, and b = 8 mm, the dimensions of each part of the movable contactor 12 are t' < 2.5 mm, 8 mm ≤ L' < 100 mm , 8mm≤L''<100mm, W'<20mm, W''<20mm.

Next, the manufacturing method of the movable contact 12 shown in FIG. 2 is demonstrated. In addition, it is assumed that the fixed contact 11 is comprised similarly to the movable contact 12, and the description of the manufacturing method is abbreviate|omitted.

FIG. 3 is a view showing a manufacturing process of the movable contact 12 shown in FIG. 2 . FIG. 4 is a diagram showing an ultrasonic welding machine 200 used in the manufacturing process of the movable contact 12 shown in FIG. 2 . 4, a front view of the ultrasonic welding machine 200 and a side view of the ultrasonic welding machine 200 are shown.

In step 1, the second price 32 and the second contact point 42 are manufactured. At this time, the concave portion 300 and the concave portion 301 are formed in the second price 32 . The recessed portion 300 may be formed by cutting the fifth end face 3E, or may be formed by plastically deforming the fifth end face 3E by applying pressure to the second price 32 with a press machine. . The concave portion 301 is formed in the same manner as the concave portion 300 .

In step 2, the second intermediate member 62 is formed on the surface of the second contact 42 on the second price 32 side.

In step 3, the second price 32 manufactured in step 1 is installed in the fixing part 6b provided on the fixing table 6 of the ultrasonic welding machine 200 . At this time, the first end face (3A) of the second price (32) is installed to face the pressure tool (8) of the ultrasonic welding machine (200).

In step 4, the second price 32 is sandwiched between the two movable parts 6a by actuating the two movable parts 6a provided on the fixed base 6 in the direction of the arrow indicated by the symbol A. At this time, the fixing jig 6a1 provided in the one movable part 6a is drawn into the recessed part 300, and the fixing jig 6a2 provided in the other movable part 6a is drawn into the recessed part 301.

In addition, each of the fixing jig 6a1 and the fixing jig 6a2 becomes a tapered shape with a thin front-end|tip, for example. By configuring in this way, the fixing jig 6a1 is in contact with each part between the stepped portion 300b and the fifth end face 3E, and the fixing jig 6a1 is in contact with the respective part between the stepped portion 301b and the sixth end face 3F. 6a2) is in contact, so that the second price 32 can be firmly fixed.

In step 5, the second contact point 42 is provided on the second price 32.

In step 6, when the pressure tool 8 of the ultrasonic welding machine 200 moves in the arrow direction indicated by the symbol B, the second contact point 42 is pressed from the pressure tool 8 in the vertical direction. When the pressure on the second contact point 42 exceeds a certain value, an ultrasonic vibration is applied from the pressure tool 8 to the second contact point 42 .

As a result, the first end face 3A of the second base member 32 and the end face of the second intermediate member 62 on the second base member 32 side are rubbed against each other, and oxides present on the face face are destroyed. This creates a new face. As a result, the second contact point 42 is joined to the second price 32 by the plastic flow of the second intermediate member 62 .

In the method for manufacturing a contact according to the present embodiment, the second contact 42 can be joined to the second price 32 without using a metal activator such as a flux for activating the metal interface, or a soldering material, The cleaning process after bonding becomes unnecessary. Accordingly, the amount of material used for manufacturing the movable contact 12 is reduced, and the working time required for the cleaning process after bonding can be reduced.

In addition, since the soldering material is unnecessary, even when the ambient temperature of the first contact 41 and the second contact 42 rises to the temperature at the time of soldering due to the blocking operation, the soldering material of the joint portion connects the second contact 42 to the soldering material. Since there is no risk of flowing toward the direction, the temperature resistance of the movable contact 12 is improved.

Further, in the method of manufacturing the contactor according to the present embodiment, the fixing jig 6a1 inserted into the concave portion 300 is in contact with the step portion 300b, and the fixing jig 6a2 inserted into the concave portion 301 is Since it comes into contact with the step portion 301b, the second price 32 can be firmly fixed. Therefore, it is possible to suppress the occurrence of slippage between the second price 32 and the fixing portion 6b without using an anvil subjected to knurling as in the prior art.

Therefore, mutual friction between the first end face 3A of the second price 32 and the end face of the second intermediate member 62 on the second price 32 side can be sufficiently performed, and a new surface can be reliably created. . As a result, the bonding of the second contact 42 to the second price 32 can be reliably performed, and high bonding quality can be ensured.

Further, when the concave portion 300 and the concave portion 301 are not formed in the second price 32, the second price 32 is firmly fixed by the fixing jig 6a1 and the fixing jig 6a2. Since this cannot be done, vibration energy is dispersed in the fixing jig 6a1 and the fixing jig 6a2, and depending on the control method of the ultrasonic welding machine 200, the vibration operation stops before reaching the initially set condition, Desired joint strength may not be ensured.

On the other hand, in this embodiment, since the second price 32 is firmly fixed by the fixing jig 6a1 and the fixing jig 6a2, the vibration energy is not distributed to the fixing jig 6a1 and the fixing jig 6a2. There is no work, and desired bonding strength can be ensured.

In addition, in the method for manufacturing the contactor according to the present embodiment, since it is not necessary to use an anvil, a horn, or the like subjected to knurling, minute protrusions may be formed on the second end face 3B of the second price 32 . There is no work, and minute projections are not formed on the surface of the second contact point 42 on the first contact point 41 side. Therefore, when the movable contact 12 and the fixed contact 11 are used for the contactor 100, the second contact 42 of the movable contact 12 and the fixed contact 11 when the contactor performs a blocking operation. An arc is generated over the entire opposite surface of each of the first contact points 41 . Therefore, compared with the prior art disclosed by patent document 1, progress of the consumption of the 2nd contact 42 and the 1st contact 41 is suppressed. In addition, in the method for manufacturing a contact according to the present embodiment, since formation of a groove in the contact-side surface of the price disclosed in Patent Document 1 is unnecessary, the arc generated between the contacts 41 and 42 is generated in the price 31 , 32), the progress of consumption of the prices 31, 32 is suppressed without occurring between the grooves formed on the contact-side surface. In addition, since minute projections are not formed on the second end face 3B of the second price 32, the area of the contact surface with the separation mechanism 2 is widened, so that the second price 32 can be firmly fixed. have. Further, since minute projections are not formed on the second end face 3B of the first price 31, the area of the contact surface with a fixing member such as a housing for fixing the first price 31 is widened, so that the first The price 31 can be firmly fixed.

Further, in the method for manufacturing the contact according to the present embodiment, since the fixing jig 6a1 is inserted into the recessed portion 300 and the fixing jig 6a2 is inserted into the recessed portion 301, the second price 32 is Each time it is replaced, the fixing position of the second price 32 can be accurately determined. Accordingly, the imbalance in the manufacturing quality of the movable contact 12 is reduced.

Further, as the material of the first contact 41 and the second contact 42, a sintered metal having a hardness higher than that of the first intermediate member 61 and the second intermediate member 62 is used, so that the arc is formed. The progress of consumption of the 1st contact 41 and the 2nd contact 42 can be suppressed to the minimum.

Moreover, silver used for the second intermediate member 62 and the electrolytic copper or oxygen-free copper used for the second price 32 are metals that are easy to plastically flow. Therefore, for example, when the second contact 42 is joined to the second price 32 by ultrasonic bonding, the second intermediate member 62 and the second price 32 plastically flow to each other. , the oxide present on the abutting surfaces of the second intermediate member 62 and the second price 32 is liable to be destroyed. Furthermore, the bonding strength of the second contact point 42 to the second price 32 is improved by mixing the abutting surfaces of the second intermediate member 62 and the second price 32 .

5 is a configuration diagram of the second price 32 according to a modification of the embodiment of the present invention. The number of the recesses 300 formed in the fifth end face 3E of the second price 32 is not limited to one, but may be two or more. Fig. 5 shows an example in which the concave portion 300A and the concave portion 300B are formed in the fifth end face 3E of the second price 32. As shown in Figs. In this case, the tip shape of each of the fixing jig 6a1 and the fixing jig 6a2 becomes a shape which can be inserted into a some recessed part.

The recesses similar to those of the recesses 300A and 300B may also be formed in the sixth end face 3F of the second base 32 . The recesses similar to those of the recesses 300A and 300B may also be formed in each of the fifth end face 3E and the sixth end face 3F of the first base 31 .

By providing the plurality of recesses in this way, the contact area of each of the fixing jig 6a1 and the fixing jig 6a2 to the step portion forming the plurality of recesses increases, and the second price 32 is further increased. It can be firmly fixed.

In addition, the shape of the step part 300b which forms the recessed part 300 may just be the shape in which the fixing jig 6a1 is drawn in, and may be polygonal other than a square, and may be circular. The shape of the step portion 301b forming the concave portion 301 is also the same. In addition, the shape of the recessed part 300 may be the same as that of the recessed part 301, and a different shape may be sufficient as it. For example, when the shape of each of the step portion 300b and the step portion 301b is a quadrilateral or larger polygon, the stepped portion 300b and the stepped portion 301b have a rectangular shape, compared to a case where each shape is a square. The contact area of the fixing jig to the 300b and 301b is increased, so that the first price 31 or the second price 32 can be firmly fixed.

Further, the shapes of the first datum 31 and the second datum 32 are not limited to rectangular shapes, and concave portions 300A and 300B may be formed, and oval shapes when viewed from the Z-axis direction This may be the same, or an L-shape may be sufficient when viewed from the Z-axis direction.

In addition, in this embodiment, although the example in which the recessed part is provided in both the 5th end surface 3E and the 6th end surface 3F of the datum is described, among the 5th end surface 3E and the 6th end surface 3F of the datum You may provide a recessed part in either side. In the case where the datum is configured in this way, the fixing jig can be inserted into the concave portion, and at the same time as compared to the case where concave portions are provided on both the fifth end face 3E and the sixth end face 3F of the datum 31 and 32 . , it is possible to shorten the time required for processing the prices 31 and 32 .

In addition, although the position of the recessed part on the 5th end surface 3E or the 6th end surface 3F of a price is not limited to an illustration example, As shown in FIG. It is preferable to provide in the position which overlaps with the area|region formed by projecting toward (32), and can fix a price with a fixing jig. By providing the recessed portion at such a position, the distance from the second contact point 42 to the fixing jig is shortened, and vibration of the second price 32 when vibration is applied can be suppressed. Therefore, the plastic flow of the second intermediate member 62 is performed in a short time, so that the bonding strength can be increased.

The structure shown in the above embodiment shows an example of the content of the present invention, it is possible to combine it with a separate known technique, and it is also possible to omit and change a part of the structure without departing from the gist of the present invention. do.

1: contactor 2: separation mechanism
3A: first section 3B: second section
3C: third section 3D: fourth section
3E: 5th section 3F: 6th section
6: fixed base 6a: movable part
6a1, 6a2: fixing jig 6b: fixing part
8: pressure tool 11: fixed contact
12: movable contact 31: first price
32: second price 41: first contact
42: second contact 61: first intermediate member
62: second intermediate member 100: contactor
200: ultrasonic welding machine 300, 300A, 300B, 301: concave
300a, 301a: bottom surface 300b, 301b: step part

Claims (9)

money and
a contact point fixed to the price;
a conductive member provided between the datum and the contact point, the hardness is lower than the hardness of the contact point, and a conductive member capable of plastic flow;
A concave portion is formed on the outer circumferential surface of the daegeum, which is concave in a direction perpendicular to the arrangement direction of the daegeum, the conductive member, and the contact, and a jig provided in the movable part of the ultrasonic welding machine is inserted and fixed.
contactor. The method of claim 1,
A plurality of the concave portions are formed on the outer circumferential surface
contactor. 3. The method according to claim 1 or 2,
In the outer circumferential surface where the concave portion is formed, the concave portion is formed in a part of the outer circumferential surface,
The concave portion is formed in a position overlapping the region formed by projecting the contact point toward the daegeum.
contactor. 3. The method according to claim 1 or 2,
The shape of the step portion forming the concave portion is characterized in that the polygon is more than a square
contactor. 3. The method according to claim 1 or 2,
The material of the contact is sintered metal,
The material of the price is electric copper or oxygen-free copper,
wherein the conductive member is silver
contactor. 3. The method according to claim 1 or 2,
The concave portion is provided at a position overlapping the area formed by projecting the contact point toward the daegeum.
contactor. A process of manufacturing a daegeum in which a jig provided on the movable part of the ultrasonic welding machine is fitted and a recessed portion is formed on the outer circumferential surface;
A process of manufacturing a contact fixed to the price;
forming a conductive member having a hardness lower than that of the contact point and capable of plastic flow on the contact point;
A step of installing the price on a fixing table of the ultrasonic welding machine;
a step of inserting the jig into the recess formed in the datum installed on the fixing table;
a process of installing the contact point to the price;
and applying ultrasonic vibration to the contact point from the pressure tool of the ultrasonic welding machine.
A method of manufacturing a contactor. 8. The method of claim 7,
In the process of manufacturing the daegeum, electric copper or oxygen-free copper is used as a material of the daegeum,
In the process of manufacturing the contact, a sintered metal is used as a material of the contact,
In the step of forming the conductive member on the contact point, silver is used as a material of the conductive member.
A method of manufacturing a contactor. 9. The method according to claim 7 or 8,
In the step of manufacturing the daegeum, the concave portion is provided at a position overlapping with an area formed by projecting the contact point toward the daegeum.
A method of manufacturing a contactor.

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