JP2014127398A - Receptacle connector and manufacturing method of receptacle connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receptacle connector which can be stably produced, in which a sufficient effective fitting length can be secured, and which is structured not to affect contact reliability.SOLUTION: A receptacle connector 20 comprises: a central conductor 24 including a contact part 241 and a connection part 243; an external conductor 26 including a contact part and a connection part 263; and an insulator 22 holding the central conductor 24 and the external conductor 26. In the case where a diameter of the contact part 241 of the central conductor 24 is 0.2 to 0.5 mm and a height is 0.2 to 0.7 mm, in the receptacle connector 20, a thick plate piece as long as or longer than the contact part 241 is punched into a predetermined shape, and a punched plate piece 60 is crushed into a shape of the contact part 241. Punching is performed to remove an excessive portion of the central conductor 24 crushed into the shape of the contact part 241, and the central conductor 24 on which punching has been performed to remove the excessive portion, is integrated with the insulator 22 simultaneously with the external conductor 26, thereby forming the connection part 243 of the central conductor 24.

Description

  The present invention relates to a receptacle connector used in communication devices such as smartphones and notebook PCs, electrical devices, and electronic devices, and in particular, can be stably produced, can secure a sufficient effective fitting length, and can achieve high contact reliability. It is about a structure that has no effect.

Generally, a receptacle connector is mounted on a substrate and is fitted with a plug connector to which a coaxial cable as a mating connector is connected. The receptacle connector includes a central conductor having a contact portion that contacts a socket contact of the plug connector and a connection portion mounted on the substrate, an external portion having a contact portion that contacts the shell of the plug connector and a connection portion mounted on the substrate. A conductor and an insulator for holding the center conductor and the outer conductor are provided.
On the other hand, the plug connector which is the mating connector is in contact with the center conductor and a socket contact to which the coaxial cable is connected, a block which is an insulator for holding the socket contact, and covers the block and contacts the external conductor And a shell to perform.
As a central conductor of the receptacle connector, a contact portion is formed by drawing as in the following patent document. That is, after the plate-like piece is punched into a predetermined shape, the contact portion is formed by drawing.
Below is a list of receptacle connectors that have already been proposed by third parties and the applicant. Patent documents 1 (Japanese Patent Laid-Open No. 11-307158), Patent Document 2 (Japanese Patent Laid-Open No. 2009-59500), and Patent Document 3 (Japanese Patent Application No. 2012-83611) are cited as documents of the receptacle connector.
According to the summary of JP-A-11-307158, the socket 23 is coaxial with the spring contact portion 33 for the purpose of providing a coaxial connector that can be coupled to the receptacle in a mechanically and electrically stable state and that is short. And a contact portion 29 connected to the center conductor 26c of the cable 26. The spring contact portion 33 has a shape obtained by bending a leaf spring having a certain width so that the cross-sectional shape is C-shaped, and the receptacle. When the center conductor 43 of 41 is press-fitted, it is displaced radially outward, the spring contact portion 33 is pressed against the outer peripheral surface of the center conductor 43, and the connection portion 29 is in the direction of the center axis of the spring contact portion 33. A coaxial connector is disclosed which is bent in a direction orthogonal to each other and connected to the connecting portion 29 by a caulking to the tip end portion of the central conductor 26c of the coaxial cable 26. According to the summary of JP-A-2009-59500, the contact between the contact piece and the mating terminal is made into a multi-point contact, so that the contact is stabilized, the contact position between the terminals is easily positioned, and further, the processing is easy and the manufacturing cost Is an inexpensive coaxial connector and a terminal for a coaxial connector used therefor, and is a terminal connected to a central conductor or the like of a coaxial cable, and a plurality of terminals extending in a fitting direction with a mating terminal A recess is formed along the fitting direction in a contact portion between at least one inner surface of the contact piece and at least one inner surface of the plurality of contact pieces along the fitting direction, and is insulated from an insulator that holds the terminal. A coaxial connector is configured that includes a body and an outer conductor connected to the shielded wire of the coaxial cable. According to the summary of Japanese Patent Application No. 2012-83611, it does not lead to an increase in board manufacturing cost, the fitting height can be reduced to about 0.8 mm, there is no erroneous fitting, and there is no defect such as a short circuit and stable connection. The receptacle connector 20 is detachably fitted to the plug connector 40, and has a contact portion 241 that contacts the socket contact 44 and a connection portion 243 that is mounted on the substrate. In the receptacle connector 20 including the conductor 24, the outer conductor 26, and the insulator 22, the engaging portion 266 that is the distal end portion of the outer conductor 26 and the engaging portion 464 that is the distal end portion of the shell 46 are engaged and contacted. The center conductor 24 and the outer conductor 26 are integrally molded and held in the insulator 22 so that the fitting height is about 0.8 mm. The recess 221 is provided at a position where the connecting portion 243 of the center conductor 24 protrudes, a receptacle connector shell 26 has a structure that is not in contact with the connecting portion 243 when the fitting is disclosed in the recess 221.

  In recent years, communication devices, electrical devices, electronic devices, and the like have been miniaturized, and as connectors have been miniaturized, the components constituting the connector have also been miniaturized. When the center conductor is processed by conventional drawing, there is a high possibility that cracks will occur due to the influence of drawing wrinkles and processing at the tip of the center conductor, and there is a concern that the contact reliability may be reduced due to the influence. In addition, the effective fitting length of the contact portion of the center conductor may not be ensured due to the influence of the tip R shape unique to the drawing process. Furthermore, if the diameter of the central conductor is reduced, the punch diameter used during drawing is reduced, and the possibility of breakage of the punch is increased, and stable production cannot be performed.

  The present invention has been made in view of such conventional problems, and a receptacle connector having a structure that can be stably produced, can ensure a sufficient effective fitting length, and does not affect contact reliability, and the connector. The manufacturing method of this is provided.

This object is a receptacle connector as described in claim 1, which is detachably fitted to a plug connector to which a coaxial cable is connected.
A central conductor having a contact portion contacting the socket contact of the plug connector and a connection portion mounted on the substrate; an external conductor having a contact portion contacting the shell of the plug connector and a connection portion mounted on the substrate; and the central conductor And a receptacle connector comprising an insulator for holding the outer conductor,
When the diameter of the contact portion of the center conductor is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm, first, a thick plate-like piece equal to or larger than the contact portion length is punched into a predetermined shape. Processing,
Next, the punched plate-like piece is crushed into the shape of the contact portion,
Next, punching to remove the excess portion of the center conductor that has been crushed into the shape of the contact portion,
Next, the center conductor that has been punched to remove the excess portion is integrally formed with the insulator simultaneously with the outer conductor,
Finally, this can be achieved by a receptacle connector characterized in that the connection portion of the central conductor is formed.

  The receptacle connector according to claim 2, wherein a strain absorbing means is provided between the contact portion and the pilot hole so as not to cause distortion in a positional relationship between the pilot hole and the contact portion during crushing. The receptacle connector according to claim 1.

The purpose of the present invention is as follows, wherein the diameter of the contact portion of the central conductor is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm.
First, punch a thick plate-shaped piece equal to or greater than the contact length into a predetermined shape,
Second, the punched plate-like piece is crushed into the shape of the contact portion,
Third, a punching process is performed to remove an excess part of the central conductor that has been subjected to a crushing process on the shape of the contact part,
Fourthly, the center conductor that has been punched to remove an excess portion is integrally formed with the insulator simultaneously with the outer conductor,
Finally, this can be achieved by a method of manufacturing a receptacle connector, characterized in that the connection portion of the central conductor is formed.

  5. The method of manufacturing a receptacle connector according to claim 4, wherein a strain absorbing means is provided between the contact portion and the pilot hole so as not to cause distortion in a positional relationship between the pilot hole and the contact portion during crushing. The receptacle connector according to claim 1, wherein:

As is apparent from the above description, according to the receptacle connector and the manufacturing method of the receptacle connector of the present invention, the following excellent effects can be obtained. In this receptacle connector and the method for manufacturing the receptacle connector, stable production can be achieved, sufficient effective mating length can be secured, and the effective mating length can be controlled, and contact reliability is not affected. Is obtained.
(1) A receptacle connector as described in claim 1, which is detachably fitted to a plug connector to which a coaxial cable is connected,
A central conductor having a contact portion contacting the socket contact of the plug connector and a connection portion mounted on the substrate; an external conductor having a contact portion contacting the shell of the plug connector and a connection portion mounted on the substrate; and the central conductor And a receptacle connector comprising the insulator for holding the outer conductor, when the diameter of the contact portion of the center conductor is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm, , Punching a thick plate-shaped piece equal to or greater than the contact portion length into a predetermined shape, then crushing the punched plate-shaped piece into the shape of the contact portion, The center conductor that has been punched to remove the excess portion of the center conductor that has been crushed in shape is then integrated with the insulator at the same time as the outer conductor. Since the receptacle connector is characterized by forming the connection portion of the central conductor at the end, it can be stably produced, a sufficient effective fitting length can be secured, and the contact reliability is not affected. A stable connection is obtained.
(2) In the receptacle connector according to claim 2, a strain absorbing means is provided between the contact portion and the pilot hole so as not to cause distortion in the positional relationship between the pilot hole and the contact portion during crushing. Since the receptacle connector according to claim 1 is used, distortion can be absorbed in the positional relationship between the pilot hole and the contact portion during crushing, stable production, and a sufficient effective fitting length. Can be secured, and a stable connection without affecting the contact reliability can be obtained.
(3) When the diameter of the contact portion of the central conductor is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm as described in claim 3, firstly, the contact portion length and The same or more thick plate-like pieces are punched into a predetermined shape, and secondly, the punched plate-like pieces are crushed into the shape of the contact portion, and thirdly, the shape of the contact portion is obtained. The punching process is performed to remove the excess portion of the center conductor that has been crushed, and fourth, the center conductor that has been punched to delete the excess portion is integrally formed with the insulator simultaneously with the outer conductor. Finally, since the receptacle connector manufacturing method is characterized in that the connecting portion of the central conductor is formed, it is possible to stably produce, secure a sufficient effective fitting length, and effective fitting. Long contact is possible and stable contact without affecting contact reliability It is obtained.
(4) In the method of manufacturing a receptacle connector according to claim 4, the strain absorption is performed between the contact portion and the pilot hole so that the positional relationship between the pilot hole and the contact portion is not distorted during crushing. Since the receptacle connector manufacturing method according to claim 1, characterized in that it can absorb distortion in the positional relationship between the pilot hole and the contact portion during crushing, can be stably produced, A sufficient effective fitting length can be secured, and a stable connection without affecting the contact reliability can be obtained.

(A) It is the top view and side view of a blank state. (B) It is the top view and side view after stamping to a predetermined shape. (C) It is the top view and side view after crushing. (D) It is the upper side figure and side view of the center conductor of the completed state. (A) It is the perspective view which looked at the receptacle connector from the fitting direction. (B) It is the perspective view which looked at the receptacle connector from the board | substrate connection direction. (C) It is a perspective view of the plug connector seen from the fitting direction. (A) It is sectional drawing which carried out the cross section in the diagonal 45 degree | times direction in the state which the plug connector and the receptacle connector fitted. (B) It is a longitudinal cross-sectional view of the state which the plug connector and the receptacle connector fitted. (A) It is the perspective view which looked at the center conductor before insert molding from the contact part direction. (B) It is the perspective view which looked at the center conductor before insert molding from the connection part direction. (A) It is the perspective view which looked at the outer conductor before insert molding from the fitting direction. (B) It is the perspective view which looked at the external conductor before insert molding from the connection part direction. (A) It is the perspective view which looked at the insulator of the state by which the center conductor and the outer conductor are not insert-molded from the fitting direction. (B) It is the perspective view which looked at the insulator of the state by which the center conductor and the external conductor are not insert-molded from the connection direction. (A) It is the perspective view which looked at the socket contact from the contact part direction. (B) It is the perspective view which looked at the socket contact from the connection part direction. (A) It is the perspective view which looked at the shell after crimping from the fitting direction. (B) It is the perspective view which looked at the shell after crimping from the fitting direction. (A) It is the perspective view which looked at the block from the fitting direction. (B) It is the perspective view which looked at the block from the connection direction.

A feature of the present invention is a receptacle connector 20 that is detachably fitted to a plug connector 40 to which a coaxial cable is connected, and a contact portion 241 that contacts a socket contact 44 of the plug connector 40 and a connection portion that is mounted on a substrate. A central conductor 24 having a central conductor 24, an outer conductor 26 having a contact portion 263 in contact with the shell 46 of the plug connector 40 and a connecting portion 263 to be mounted on the substrate, and an insulator 22 that holds the central conductor 24 and the outer conductor 26. When the diameter of the contact portion 241 of the center conductor 24 is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm, first, the length of the contact portion 241 is The same or more thick plate-like piece 60 is punched into a predetermined shape, and then the punched plate-like piece 60 is crushed into the shape of the contact portion 241. Next, the center is subjected to punching to remove an excess portion of the center conductor 24 that has been crushed into the shape of the contact portion 241, and finally, the center is subjected to punching to remove the excess portion. The receptacle connector 20 is characterized in that a conductor 24 is formed integrally with the insulator 22 at the same time as the outer conductor 26.
That is, when the diameter of the contact portion 241 of the central conductor 24 is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm, first, a thick plate-like piece equal to or greater than the length of the contact portion 241 is used. 60 is punched into a predetermined shape, and then the punched plate-like piece 60 is crushed into the shape of the contact portion 241 and is subjected to a punching process in which a portion extended by the crushing process is deleted. It is a thing.

Examples will be described with reference to the drawings. 1A is a top view and a side view in a blank state, FIG. 1B is a top view and a side view after punching into a predetermined shape, and FIG. 1C is a top view after being crushed. And (D) is a top view and a side view of the center conductor in a completed state. 2A is a perspective view of the receptacle connector viewed from the mating direction, FIG. 2B is a perspective view of the receptacle connector viewed from the board connecting direction, and FIG. 2C is a plug connector viewed from the mating direction. It is a perspective view. FIG. 3A is a cross-sectional view in which the plug connector and the receptacle connector are fitted, and is a cross-sectional view taken at an angle of 45 degrees, and FIG. 3B is a vertical cross-sectional view in which the plug connector and the receptacle connector are fitted. It is. 4A is a perspective view of the center conductor before insert molding as viewed from the contact portion direction, and FIG. 4B is a perspective view of the center conductor before insert molding as viewed from the connection portion direction. FIG. 5A is a perspective view of the outer conductor before insert molding as viewed from the fitting direction, and FIG. 5B is a perspective view of the outer conductor before insert molding as viewed from the connection portion. FIG. 6A is a perspective view of the insulator in a state where the center conductor and the outer conductor are not insert-molded from the fitting direction, and FIG. 6B is a state in which the center conductor and the outer conductor are not insert-molded. It is the perspective view which looked at the insulator from the connection direction. 7A is a perspective view of the socket contact as viewed from the contact portion direction, and FIG. 7B is a perspective view of the socket contact as viewed from the connection portion direction. FIG. 8A is a perspective view of the shell after crimping as seen from the fitting direction, and FIG. 8B is a perspective view of the shell after crimping as seen from the fitting direction. FIG. 9A is a perspective view of the block viewed from the fitting direction, and FIG. 9B is a perspective view of the block viewed from the connecting direction.
The receptacle connector 10 of this embodiment includes at least a central conductor 24, an insulator 22, and an external conductor 26. On the other hand, the plug connector which is a mating connector mainly includes a socket contact 44, a block 42 and a shell 46.

  Before describing the receptacle connector 20 of the present invention, the coaxial cable 80 connected to the plug connector 40 will be described. The coaxial cable 80 is composed of an inner conductor at the center, an insulator that is an insulator covering the inner conductor, a braid that is an outer conductor that covers the insulator, and an outer skin that is an insulator that covers the braid. Yes.

  Before describing the receptacle connector 20 of the present invention, a substrate on which the receptacle connector 20 is mounted will be described. The board includes a hard board and an FPC (flexible printed board). Here, the hard substrate will be described. The board includes a land to which the connection portion 243 of the center conductor 24 and the connection portion 263 of the outer conductor 26 are connected, and a pattern connected to the circuit from the land. In the land surface treatment, the connecting portion 243 of the central conductor 24 and the connecting portion 263 of the outer conductor 26 are merely connected by soldering, and therefore, it is not necessary to perform gold plating.

  The receptacle connector 20 of the present invention will be described based on the drawings. First, the center conductor 24 will be described. The central conductor 24 is made of metal and is manufactured by a known press working. The material of the central conductor 24 is required to be springy or conductive, and examples thereof include beryllium copper and phosphor bronze.

  The central conductor 24 has at least a contact portion 241 that contacts the socket contact 44 of the plug connector 40 and a connection portion 243 that is mounted on the substrate. The center conductor 24 is held by the insulator 22 by integral molding in this embodiment. As a method of holding the center conductor 24 to the insulator 22, any method may be used as long as it can be held, and press-fitting, welding, hooking, or the like may be used. The holding method is appropriately designed in consideration of the low profile of the connector, holding force, elasticity, strength, workability, and the like.

  The contact portion 241 of the center conductor 24 is a portion that contacts the socket contact 44 of the plug connector 40. In the present embodiment, the contact portion 241 of the center conductor 24 is substantially cylindrical so that it can easily contact the socket contact 44 and obtain a stable connection. It is in shape.

  The connecting portion 243 is a portion that is connected to the substrate. In this embodiment, the connecting portion 243 is a substantially plate-like piece and is mounted on the substrate by surface mounting (SMT). The connection part 243 may be a dip type as long as it can be mounted on the substrate. The shape and size of the connecting portion 243 is appropriately designed in consideration of a low connector height, a board mounting area, mounting strength, workability, and the like.

A method for manufacturing the central conductor 24, which is a feature of the present invention, will be described.
When the diameter of the contact portion 241 of the central conductor 24 is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm, first, a thick plate-like piece 60 equal to or longer than the length of the contact portion 241 is formed. Punching into a predetermined shape (removing the punched portion 62) is performed.
Next, the punched plate-like piece 60 is crushed into the shape of the contact portion 241 (the crushed portion 64 is crushed).
Finally, a punching process is performed to remove the portion extended by the crushing process, so that the shape of the central conductor 24 is obtained.
If the diameter of the contact part 241 is less than 0.2 mm, it cannot be processed and is too thin to obtain contact stability. When the diameter of the contact portion 241 exceeds 0.5 mm, it is possible to sufficiently cope with drawing.
When the height of the contact portion 241 is less than 0.2 mm, it is possible to sufficiently cope with drawing. If the height of the contact part 241 exceeds 0.7 mm, the number of crushing processes increases, and at the same time, it is difficult to process, and the height of the connector is reduced.
The thickness that is equal to or greater than the length of the contact portion 241 is preferably 0.05 to 0.1 mm thicker than the length of the contact portion 241 considering the low height of the connector.
In processing, it is desirable to provide a strain absorbing means between the contact portion 241 and the pilot hole 61 so that the positional relationship between the pilot hole 61 and the contact portion 241 during the crushing processing is not distorted. Although not shown, the strain absorbing means is provided with an absorption hole (any shape and size may be used as long as it can absorb strain) between the contact portion 241 and the pilot hole 61, or after the crushing processing, the contact portion 241. The pilot hole 61 is provided again on the basis of the position and the shape of the central conductor 24 is made as thin as possible so that the distortion does not reach the pilot hole 61.

  Next, the outer conductor 26 will be described. The outer conductor 26 is made of metal and is manufactured by a known press working. The material of the external conductor 26 is required to be springy or conductive, and examples thereof include beryllium copper and phosphor bronze. The outer conductor 26 has a main body portion 261 and a connection portion 263 when roughly classified.

  The connection portion 263 of the external conductor 26 is a portion connected to the substrate. In this embodiment, the connection portion 263 is a substantially plate-like piece and is mounted on the substrate by surface mounting (SMT). In this embodiment, the connection portion 263 is provided to be connected to the main body portion 261 in three directions other than the connection portion 243 of the center conductor 24 projecting. The connection portion 263 may be mounted on the substrate and may be a dip type. The shape and size of the connection portion 263 is appropriately designed in consideration of a low profile of the connector, a board mounting area, mounting strength, workability, and the like.

  Ideally, the main body portion 261 has a cylindrical shape, and an engagement portion 266 bent outward is provided at a tip portion of the main body portion 261 so as to engage with the locking portion 464 of the shell 46. . The engaging portion 266 is provided on the entire circumference of the tip portion, and may have any shape as long as it can engage and contact. The shape and size of the engaging portion 266 is appropriately designed in consideration of a reduction in the height of the connector, connection stability (contact stability), holding force during fitting, workability, and the like. In consideration of the reduction in the height of the connector, the main body 261 is provided at the tip portion.

  In this embodiment, the outer conductor 26 is held by the insulator 22 by integral molding. As a method of holding the outer conductor 26 to the insulator 22, any method may be used as long as the outer conductor 26 can be held, and press fitting, welding, hooking, or the like may be used. The holding method is appropriately designed in consideration of the low profile of the connector, holding force, elasticity, strength, workability, and the like.

  The main body 261 and the insulator 22 form a fitting port 12 into which the plug connector 40 is inserted. The fitting port 12 only needs to contain the plug connector 40 to obtain a stable connection, and the shape and size thereof conforms to the shape and size of the plug connector 40. Design appropriately considering height and strength.

  Next, the insulator 22 will be described with reference to FIG. The insulator 22 is an electrically insulating plastic, and is manufactured by a known technique of injection molding. The material is appropriately selected in consideration of dimensional stability, workability, cost, etc. Generally, polybutylene is used. Examples include terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), polyphenylene sulfide (PPS), and synthetic materials thereof. In view of heat resistance, it is preferable to use polyamide, liquid crystal polymer, polyphenylene sulfide, etc. for mounting on a substrate. The central conductor 24 and the outer conductor 26 are attached to the insulator 22 by integral molding.

  The insulator 22 has a substantially rectangular parallelepiped shape, and a recess 221 is provided at a position corresponding to the connection portion 243 of the center conductor 24. The size of the concave portion 221 is such that the connecting portion 243 can be mounted on the substrate and does not protrude. The concave portion 221 serves to prevent the shell 46 and the connection portion 243 from coming into contact with the plug connector 40 when the fitting height is lowered. This prevents a connection failure such as a short circuit from occurring (even if the distance between the connection portion 243 of the center conductor 24 and the shell 46 of the plug connector 40 is short). Furthermore, it becomes a standard when mounting on the board. The size and shape of the recess are appropriately designed in consideration of the above role, the low profile of the connector, the board mounting area, workability, strength, and the like.

  Hereinafter, the plug connector 40 which is the mating connector will be described somewhat. The plug connector 40 includes at least a block 42 that is an insulator, a socket contact 44 that contacts the central conductor 24, and a shell 46 that contacts and engages the outer conductor 26.

  First, the socket contact 44 will be described. The socket contact 44 is made of metal and is manufactured by a known press working. The material of the socket contact 44 is required to be springy or conductive, and examples thereof include beryllium copper and phosphor bronze.

  The socket contact 44 has at least a contact portion 441 that contacts the central conductor 24 and a connection portion 443 that connects to the cable 80. In this embodiment, the socket contact 44 is held by the block 42 by integral molding. As a method of holding the socket contact 44 to the block 42, any method may be used as long as it can be held, and press fitting, welding, hooking, or the like may be used. The holding method is appropriately designed in consideration of holding force, elasticity, strength, workability, and the like.

  The contact portion 441 of the socket contact 44 has two plate-like pieces arranged in parallel as shown in FIG. 6 (so-called socket shape), the tip portion is curved, and the contact portion 441 is between the two plate-like pieces. The center conductor 24 is connected by inserting. The shape and size of the contact portion 441 may be designed as long as stable connection can be obtained, and considering the connection stability, the low profile of the connector, workability, and the like.

  The connecting portion 443 is a portion connected to the inner conductor of the coaxial cable 80, and in the present embodiment, is formed into a plate-like piece and connected by welding. In this embodiment, the coaxial cable 80 is connected by welding. However, any method may be used as long as the coaxial cable 80 can be connected to the connection portion 443, and examples thereof include soldering, pressure welding, and pressure bonding. The shape and size of the connection portion 443 is appropriately designed according to the connection method, holding strength, connection stability, workability, and the like. As in this embodiment, the connection by welding is advantageous in reducing the height of the connector at the time of fitting, and high connection reliability and strong holding strength can be obtained. Further, as in this embodiment, in the case of welding, it is better to provide a groove at a position where the inner conductor is disposed.

  Next, the block 42 will be described with reference to FIG. The block 42 is an electrically insulating plastic, and is manufactured by a known technique of injection molding. The material is appropriately selected in consideration of dimensional stability, workability, cost, etc. Generally, polybutylene terephthalate is used. (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), and synthetic materials thereof. The socket contact 44 is attached to the block 42 by integral molding.

  The insulator 42 has a substantially rectangular parallelepiped shape, and a through hole 421 into which the contact portion 441 enters is provided at a position corresponding to the contact portion 441 of the socket contact 44. The shape and size of the through-hole 421 should be in line with the shape and size of the contact portion 441 of the socket contact 44, so long as the contact portion 441 enters and can be displaced, taking into account the amount of displacement, workability, strength, and the like. And design accordingly.

  The insulator 42 is provided with four protrusions 422 on the opposite side of the through hole 421. The protrusion 422 forms a space by contacting the tip of the main body 461 of the shell 46. The connection portion 443 of the socket contact 44 is located in the space so that the connection portion 443 and the shell 46 do not come into contact with each other. The shape and size of the protrusion 422 is appropriately designed in consideration of this role, connection stability, low connector height, strength, workability, and the like.

  Next, the shell 46 will be described with reference to FIG. The shell 46 is made of metal and is manufactured by a known press working. As the material of the shell 46, spring property and moldability are required, and examples thereof include beryllium copper and phosphor bronze. The shell 46 is for electrically and mechanically connecting the coaxial cable 80 and the outer conductor 26 of the receptacle connector 20 as an outer conductor.

  The shell 46 mainly includes a main body 461, a connection portion 463, a lid 465, and a locking portion 464. The shell 26 is punched from a material into a predetermined shape by pressing (not shown), and then further bent by pressing (not shown), and the coaxial cable 80 is connected. 7A and 7B, the insulator 42 integrally formed with the socket contact 44 is set on the shell 46, and further bent (bent), and the coaxial cable 80 is crimped to the connection portion 463 of the shell 46. B).

  Inside the main body 461 and the lid 465, the insulator 42 enters and holds. The main body 461 and the lid 465 form a shape into which the insulator 42 enters. The main body 461 and the lid 465 only need to contain the insulator 42, and take into consideration the holding power, connector downsizing, low profile at the time of fitting, workability, and the like along the shape of the insulator 42. Design appropriately.

  A locking portion 464 that engages with the engaging portion 266 of the outer conductor 26 is provided on the outer peripheral portion of the main body 461 of the shell 46 so as to be folded outward. The engaging portion 464 only needs to be able to engage with the engaging portion 266, and is appropriately designed in consideration of a reduction in height at the time of fitting, workability, strength, and the like.

  The connection portion 463 is a portion connected to the braid (outer conductor) of the coaxial cable 80. In this embodiment, the connection portion 463 has a substantially cylindrical shape, and is connected by crimping the braided portion. The shape and size of the connection part 463 may be designed as appropriate in consideration of connection stability, connection strength, workability, and the like as long as it can be connected to the braid.

  INDUSTRIAL APPLICABILITY The present invention is utilized for receptacle connectors used in communication devices such as smartphones and notebook PCs, electrical devices, and electronic devices, and in particular, can be stably produced, can secure a sufficient effective fitting length, and can improve contact reliability. It is about a structure that has no effect.

12 Mating port 20 Receptacle connector 22 Insulator 221 Recess 24 Central conductor 241 Contact portion 243 Connection portion 26 External conductor 261 Body portion 263 Connection portion 264 Plate-like piece 265 Slit 266 Engagement portion 40 Plug connector 42 Block 421 Through hole 422 Protrusion 44 Socket contact 441 Contact portion 442 Fixing portion 443 Connection portion 46 Shell 461 Main body 463 Connection portion 464 Locking portion 465 Lid 60 Blank material 61 Pilot hole 62 Extraction portion 63 Absorption hole 64 Crushing portion 80 Coaxial cable

Claims (4)

A receptacle connector that detachably mates with a plug connector to which a coaxial cable is connected,
A central conductor having a contact portion contacting the socket contact of the plug connector and a connection portion mounted on the substrate; an external conductor having a contact portion contacting the shell of the plug connector and a connection portion mounted on the substrate; and the central conductor And a receptacle connector comprising an insulator for holding the outer conductor,
When the diameter of the contact portion of the center conductor is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm, first, a thick plate-like piece equal to or larger than the contact portion length is punched into a predetermined shape. Processing,
Next, the punched plate-like piece is crushed into the shape of the contact portion,
Next, punching to remove the excess portion of the center conductor that has been crushed into the shape of the contact portion,
Next, the center conductor that has been punched to remove the excess portion is integrally formed with the insulator simultaneously with the outer conductor,
Finally, a receptacle connector characterized in that a connecting portion of the central conductor is formed. 2. The receptacle connector according to claim 1, wherein a strain absorbing means is provided between the contact portion and the pilot hole so as not to cause distortion in a positional relationship between the pilot hole and the contact portion during crushing. . When the diameter of the contact portion of the central conductor is 0.2 to 0.5 mm and the height is 0.2 to 0.7 mm,
First, punch a thick plate-shaped piece equal to or greater than the contact length into a predetermined shape,
Second, the punched plate-like piece is crushed into the shape of the contact portion,
Third, a punching process is performed to remove an excess part of the central conductor that has been subjected to a crushing process on the shape of the contact part,
Fourthly, the center conductor that has been punched to remove an excess portion is integrally formed with the insulator simultaneously with the outer conductor,
Finally, a method of manufacturing a receptacle connector, wherein a connecting portion of the central conductor is formed. 4. The receptacle according to claim 3, wherein a strain absorbing means is provided between the contact portion and the pilot hole so as not to cause distortion in the positional relationship between the pilot hole and the contact portion during crushing. A method for manufacturing a connector.

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