JP4106312B2 - Connector for coaxial cable - Google Patents

Description

  The present invention relates to a connector for a coaxial cable, in particular, a metal plate integrally provided with a conductor connection piece in which a central conductor of a coaxial cable is soldered and connected to a contact piece in which a terminal of a mating connector is fitted and removed in the height direction. It is related with the connector for coaxial cables in which the contact piece member is accommodated in the insulator body.

  As a conventional example of this type of coaxial connector, one end of a contact piece called a center socket is provided with a contact as a coupling portion of a mating connector, and the center conductor of the coaxial cable is crimped to the other end of the contact piece. There is an L-shaped coaxial connector provided with a gate-shaped or cylindrical center conductor connecting portion connected in this manner (see, for example, Patent Document 1). In this case, the contact piece and the central conductor connecting portion are arranged in the height direction of the contact piece. As another conventional example, a contact portion is provided at one end portion of a contact piece called a contact portion, and a plate-like connection portion in which the central conductor of the coaxial cable is soldered and connected to the other end portion of the contact piece. Some were provided (see, for example, Patent Document 2). Even in this case, when the contact piece and the conductor connection piece called the connection portion are arranged in the height direction of the contact piece and the central conductor of the coaxial cable is soldered to the conductor connection piece, Solder is going to rise. In this case, the L-shaped coaxial connector can be downsized in the height direction by taking measures to connect the annular space that receives the corresponding contact portion of the mating connector to the cable housing portion. However, measures are taken to increase the effective mating length with the mating connector.

JP-A-5-283129 JP 2001-43939 A

  However, in any of the two conventional examples described above, a central conductor connection portion or a conductor connection piece (collectively referred to as “conductor connection piece”) connected to the central conductor of the coaxial cable is connected to the contact piece. In addition, since the conductor connection pieces are arranged side by side in the height direction with respect to the contact pieces, the height dimensions of the insulator body that accommodates the contact pieces and the conductor connection pieces as a whole are contacted. The height of the coaxial cable connector could not be reduced by making it shorter than the combined height of the piece and the conductor connecting piece.

  On the other hand, in the case where the central conductor of the coaxial cable is soldered to the conductor connecting piece, as described in Patent Document 2, the conductor connecting piece is formed in a flat plate shape, and the conductor connecting piece is a contact piece. When soldering the central conductor of a coaxial cable, the solder flows over the bent part of the contact piece to the area of the contact piece, and the elasticity of the contact piece is increased. There was a problem that it could be damaged. In addition, it is difficult to supply a sufficient amount of solder to the conductor connection piece to bond the center conductor to the conductor connection piece, thereby preventing the connection stability between the center conductor and the conductor connection piece from being impaired. In order to do so, it is necessary to increase the area of the plate-like conductor connection piece and to solder the two after increasing the length of the central conductor superimposed on the conductor connection piece. As a result, there is a problem that the required space for the soldering area is increased and it is difficult to reduce the size of the coaxial cable connector.

  The present invention has been made in view of the above situation and problems, and is based on the fact that the contact piece and the conductor connection piece are integrally provided in the contact piece member made of sheet metal, and the location of the conductor connection piece on the contact piece is provided. As a result, the height of the insulator body that accommodates the entire contact piece member can be shortened to a size that matches the height of the contact piece. An object of the present invention is to provide a coaxial cable connector that can be reduced in height.

  In addition, the present invention can suppress a necessary space of a soldering portion between the conductor connection piece and the central conductor of the coaxial cable, and can supply a sufficient amount of solder to the soldering portion. An object of the present invention is to provide a coaxial cable connector capable of improving the connection stability between a conductor connection piece and a center conductor by devising.

  Furthermore, an object of the present invention is to provide a connector for a coaxial cable that can improve both the soldering workability and the connection stability when the central conductor of the coaxial cable is soldered to a conductor connection piece.

  Furthermore, the present invention provides a coaxial cable connector in which when soldering the conductor connection line and the central conductor of the coaxial cable, the solder does not flow into the contact piece region and impair the elastic performance of the contact piece. The purpose is to provide.

  Furthermore, the present invention is for a coaxial cable that can fix a contact piece member including a contact piece and a conductor connection piece to which a central conductor of the coaxial cable is soldered and connected to an insulator body without using an extra part. An object is to provide a connector.

The coaxial cable connector according to the present invention is a sheet metal contact piece integrally including a contact piece in which a terminal of a mating connector is fitted and removed in a height direction and a conductor connection piece to which a central conductor of the coaxial cable is soldered. member is accommodated in the insulator body and an opening cable outlets that derives the coaxial cable to the external and the contact piece faces, total height portion of the conductor connection piece, there at the sides of the contact piece In the coaxial cable connector disposed within the height range of the contact piece at a position between the contact piece and the cable outlet ,
The contact piece is provided with two outer edges extending substantially parallel to the cable drawing direction and one outer edge extending in a direction perpendicular to the cable drawing direction and connecting the cable drawing side ends of the two outer edges without interruption. A plate-shaped portion, and two contact piece portions that are bent and connected to each of two outer edges extending substantially parallel to the cable drawing direction of the plate-shaped portion,
The conductor connection piece is an extension extending from the one outer edge extending in a direction perpendicular to the cable drawing direction of the plate-like portion to the cable drawing side substantially flush with the plate-like portion, and the extension portion is the above-mentioned Bent from the one outer edge extending in the direction perpendicular to the cable drawing direction of the plate-like part, and arranged on the cable drawing side between the two contact pieces, and a folded part at the intermediate part of the extension part Forming a void for a valley-shaped solder pool adjacent to the cable drawing side between the two contact pieces,
The conductor connecting piece includes a receiving portion for inserting the central conductor of the coaxial cable into the upper portion of the space and supporting the inserted central conductor at the distal end of the extension.
It is characterized by that.

According to the present invention, the contact piece and the conductor connection piece are not arranged in the height direction of the contact piece, the conductor connection piece is arranged on the side of the contact piece, and the entire height of the conductor connection piece Is arranged within the height range of the contact piece, the height dimension of the insulator body that accommodates the entire contact piece member integrally including the contact piece and the conductor connection piece is set as the height dimension of the contact piece. It is possible to shorten the dimension to a size suitable for the above, which helps to reduce the height of the coaxial cable connector. In addition, since the conductor connection piece is disposed between the contact piece and the cable outlet of the insulator body, the central conductor of the coaxial cable provided at the cable outlet of the insulator body is not bent and routed. There is an advantage that it is possible to solder and connect to the conductor connection piece.

Further, the contact piece includes two outer edges extending substantially parallel to the cable drawing direction and one outer edge that extends in a direction perpendicular to the cable drawing direction and seamlessly connects the cable drawing side ends of the two outer edges. The conductor connecting piece having a plate-like portion provided and two contact piece portions which are bent and connected to each of two outer edges extending substantially parallel to the cable drawing direction of the plate-like portion. Is an extension portion extending from the one outer edge extending in a direction perpendicular to the cable drawing direction of the plate-like portion to the cable drawing side substantially flush with the plate-like portion, and the extension portion of the plate-like portion is The cable drawing direction is bent from the one outer edge extending in the vertical direction and is arranged on the cable drawing side between the two contact pieces, and a folded portion is formed in the middle of the extension. And the above two pieces Forming a valley-shaped solder pool space adjacent to each other between the cable lead-out sides, with the conductor connecting piece at the tip of the extension and the central conductor of the coaxial cable at the top of the space. It is provided with a receiving portion that supports the inserted central conductor, and according to this, a sufficient amount of solder can be supplied to the void by forming the conductor connection piece into a valley shape. In addition, since the central conductor of the coaxial cable is connected to the conductor connecting piece by a sufficient amount of solder supplied to the space, the conductor connecting piece and the central conductor can be connected even if the length of the central conductor is shortened. The connection stability of increases. Further, since the receiving portion of the distal end portion of the conductor connection piece supporting the center conductor, it becomes possible to perform the soldering operation while rests the central conductor to the receiving portion, the is, soldering workability And help to improve both connection stability. Furthermore, there is no room for the situation where the solder supplied to the valley-shaped conductor connection piece flows into the contact piece region (plate-like part and contact piece part) and impairs the elastic performance of the contact piece part.

  In the present invention, the contact piece member is provided on the insulator body and overlaps with the first receiving surface that overlaps the plate-like portion and the valley body and the valley bottom portion of the conductor connection piece that is provided on the insulator body. It is possible to adopt a configuration in which the first receiving surface and the second receiving surface work together by being sandwiched between the second receiving surfaces and being fixed to the insulator body. As a result, it is not necessary to use extra parts to fix the contact member to the insulator body, and the contact member is fixed to the insulator body with a simple configuration. It becomes possible.

  According to the coaxial cable connector of the present invention, since the conductor connection piece is disposed on the side of the contact piece, the height dimension of the contact member made of sheet metal integrally including the contact piece and the conductor connection piece is shortened. Thus, the height dimension of the insulator body that accommodates the entire contact piece member can be shortened to a dimension that matches the height dimension of the contact piece. Therefore, it is possible to provide a coaxial cable connector that is shorter than the conventional coaxial cable connector in which the contact piece and the conductor connection piece are arranged side by side in the height direction of the contact piece.

Further, the contact piece includes two outer edges extending substantially parallel to the cable drawing direction and one outer edge that extends in a direction perpendicular to the cable drawing direction and seamlessly connects the cable drawing side ends of the two outer edges. The conductor connecting piece having a plate-like portion provided and two contact piece portions which are bent and connected to each of two outer edges extending substantially parallel to the cable drawing direction of the plate-like portion. Is an extension portion extending from the one outer edge extending in a direction perpendicular to the cable drawing direction of the plate-like portion to the cable drawing side substantially flush with the plate-like portion, and the extension portion of the plate-like portion is The cable drawing direction is bent from the one outer edge extending in the vertical direction and is arranged on the cable drawing side between the two contact pieces, and a folded portion is formed in the middle of the extension. And the above two pieces Forming a valley-shaped solder pool space adjacent to each other between the cable lead-out sides, with the conductor connecting piece at the tip of the extension and the central conductor of the coaxial cable at the top of the space. Since it is provided with a receiving portion that supports the inserted central conductor , a sufficient amount can be obtained while the necessary space for soldering between the conductor connecting piece and the central conductor of the coaxial cable can be kept small. the solder Ri name so that it can be supplied to the soldering point, the soldering is also to shorten the length of the center conductor increases the stability of the connection between the conductor connecting pieces and the central conductor, together, contact There is an effect that it is possible to easily promote the overall miniaturization of the single member, and hence the miniaturization of the entire coaxial cable connector. Furthermore, both the connection stability and soldering workability when coupling a center conductor of the coaxial cable to the conductor connection piece is improved. In addition, when soldering the conductor connection piece and the central conductor of the coaxial cable, there is no possibility that the solder will flow into the contact piece region and impair the elastic performance of the contact piece, thereby reducing the incidence of defective products. The production efficiency of the coaxial cable connector is improved, and at the same time, the elastic performance of the contact piece is sufficiently exhibited and the contact stability with the terminal of the mating connector is kept good.

  Further, since the contact piece member including the contact piece and the conductor connection piece to which the central conductor of the coaxial cable is soldered can be fixed to the insulator body without using extra parts, the coaxial cable connector is provided. There is an effect that it is easy to keep the parts cost low.

  FIG. 1 is a partially cutaway side view of a coaxial cable connector A according to the present invention and its counterpart connector B, FIG. 2 is a schematic perspective view for explaining a soldering operation procedure, and FIG. 3 is an insulator. FIG. 4 is a cross-sectional view of a portion taken along line IV-IV in FIG.

  As shown in FIG. 1, the coaxial cable connector A includes a sheet metal contact member 1, an insulator body 5 that houses the contact member 1, and a shell 7 that covers the insulator body 5. The central conductor 110 exposed at the end of the coaxial cable 100 is soldered and connected to the contact piece member 1, and the coaxial cable 100 is held by a sandwiching piece 72 provided integrally with the shell 7. .

  As shown in FIG. 2, the contact piece member 1 is bent and connected to a substantially rectangular plate-like portion 22 and left and right sides 23, 23 located on opposite sides of the outer edge of the plate-like portion 12. A pair of symmetrically provided left and right contact pieces 24, 24 and a conductor connecting piece 3 bent and connected to the other rear side 25 of the outer edge of the plate-like portion 22 are integrally provided. The contact piece 2 is formed by the plate-like portion 22 and the pair of left and right contact pieces 24 and 24. In this contact piece member 1, the pair of contact piece portions 24, 24 have contact portions 26, 26 that bulge inward in the vicinity of their tip portions, and the contact piece portions 24, 24 A pin-type terminal 8 provided in the mating connector B is inserted into and removed from the space between the tip portions. On the other hand, the conductor connection piece 3 is bent in a valley shape, and a void formed by forming the valley in a valley shape is a solder pool void 33. In addition, a receiving portion 32 that is a recessed portion is formed at the center in the width direction of the tip edge 31 of the conductor connection piece 3.

  In the contact piece member 1 of the illustrated example formed as described above, the contact piece 2 comprising a plate-like portion 22 and a pair of left and right contact piece portions 24, 24 that are bent and connected to the plate-like portion 22. The conductor connection piece 3 is provided on the side, specifically, the rear side, and the entire height of the conductor connection piece 3 is provided within the height range of the contact piece 2. In other words, the conductor connection piece 3 does not protrude above or below the contact piece 2. Therefore, the total height of the contact piece member 1 is not affected by the height dimension of the conductor connection piece 3 and is determined only by the height of the contact piece 2 composed of the plate-like portion 22 and the pair of contact piece portions 24, 24. . This makes it possible to reduce the size of the contact piece member 1 in the height direction H, thereby reducing the size.

  The soldering operation for soldering and connecting the conductor connection piece 3 and the center conductor 110 of the coaxial cable 100 is performed by connecting the center conductor 110 exposed at the end of the coaxial cable 100 to the conductor connection piece 3 as shown in FIG. The center conductor 110 is inserted into the solder reservoir space 33 by fitting and mounting on the receiving portion 32 which is a recessed portion, and solder is supplied to the solder reservoir space 33 in this state. As shown in FIG. 1, the central conductor 110 is coupled to the solder 34 in which the solder storage space 33 is filled. When such a soldering operation is performed, the center conductor 110 is securely coupled to a sufficient amount of solder 34 filling the solder reservoir space 33 in an embedded state, and the center conductor 110 is received by the receiving portion during soldering. Since the positioning is performed in the solder pool space 33 so as not to move by the solder 32, the soldering is surely performed. Therefore, even if the length of the center conductor 110 inserted in the solder pool space 33 is short, the connection stability between the conductor connection piece 3 and the center conductor 110 is improved. Accordingly, it is possible to reduce the width of the conductor connection piece 3 from the contact piece 2 by shortening the expansion width of the valley-shaped conductor connection piece 3 (the width between the base and the tip). However, this is useful for reducing the size of the contact piece member 1 by shortening the width dimension in the front-rear direction F. In the illustrated example, in the valley-shaped conductor connection piece 3, the tip of the central conductor 110 mounted on the receiving portion 32 is abutted near the base portion of the conductor connection piece 3 to fill the solder pool space 33. Since the length of the central conductor 110 coupled to the solder 34 is constant, there is an advantage that the connection stability can be improved by preventing the soldered connection state from varying.

  The insulator body 5 shown in FIG. 3 or FIG. 4 is a synthetic resin integral molded body, and includes a circular main portion 51 having a circular opening 52, a wide recessed portion 53, and a narrow recessed portion 54 in a front view. At the same time, side wall portions 55 and 55 are raised on both the left and right sides of the respective recessed portions 53 and 54. Further, while the presser piece 56 is raised on the upper surface of the front end portion of the main portion 51, the space surrounded by the upper surface 57 of the rear end portion of the main portion 51 and the left and right side wall portions 55, 55 is a cable outlet. 57 is formed. Then, the contact piece member 1 to which the central conductor 110 of the coaxial cable 100 described in FIG. 2 is soldered and connected is fitted into the wide recessed portion 53 and the narrow recessed portion 54, whereby a pair of contact portions 24, 24 is obtained. Are disposed in the wide recessed portion 53 and the conductor connecting piece 3 is disposed in the narrow recessed portion 54, the pair of contact piece portions 24 and 24 face the opening 52, and the tip end portion of the conductor connecting piece 3 is an insulator. It faces the cable outlet 57 of the body 5. In addition, the dielectric 120 exposed from the coaxial cable 100 is arranged at the cable outlet 57 and the coaxial cable 100 is drawn out from the cable outlet 57.

  The pressing piece 56 of the insulator body 5 is bent backward at the base portion 56a. Then, the presser piece 56 is accommodated in the shell 7 as shown in FIG. As shown in the figure, the shell 7 includes a cylindrical portion 71 that accommodates the insulator body 5 and a cover portion 72 that extends from one circumferential direction of the cylindrical portion 71. 71, after the insulator body 5 is accommodated, the cover portion 72 is overlapped with the pressing piece 56 of the insulator body 5 and the coaxial cable 100 by bending the cover portion 72 backward at the base portion thereof, The coaxial cable 100 is clamped by the clamping piece 72 provided integrally with the cover portion 72.

  By the way, in this embodiment, when the insulator body 5 is attached to the shell 7 as shown in FIG. 1, the pressing piece 56 of the insulator body 5 overlaps the plate-like portion 22 of the contact piece 2, and the insulator body 5 The edge portion of the opening 52 of the main portion 51 is formed so as to overlap the valley bottom portion 34 of the conductor connecting piece 3, and the overlapping surface of the pressing piece 56 with the plate-like portion 22 is defined as a first receiving surface 58. The overlapping surface with the valley bottom 34 of the conductor connection piece 3 is formed as the second receiving surface 59. By doing so, the contact piece member 1 is fixed to the insulator body 5 so as not to move in a sandwiched state by the cooperation of the first receiving surface 58 and the second receiving surface 59. There is an advantage that it is not necessary to use an extra part to fix 1 to the insulator body 5.

  In the coaxial cable connector A described above, the pin-shaped terminal 8 of the mating connector B is inserted between the pair of left and right contact pieces 24, 24 from the opening 52 of the insulator body 5, and the pin shape The terminal 8 is elastically contacted with the contact points 26 and 26 of the contact pieces 24 and 24 to be electrically connected.

  In this embodiment, although the receiving part 32 of the conductor connection piece 3 is formed by a recessed part, it is also possible to form the receiving part 32 by a hole.

  The coaxial cable connector according to the present invention can be used as a small power connector for electric and electronic equipment such as portable audio video equipment.

FIG. 3 is a side view of the coaxial cable connector according to the present invention and its counterpart connector partially cut away. It is a schematic perspective view for demonstrating the soldering work procedure. It is a top view of an insulator body. It is sectional drawing of the part which follows the IV-IV line | wire of FIG.

Explanation of symbols

A Coaxial cable connector B Mating connector H Height direction 1 Contact piece 2 Contact piece 3 Conductor connection piece 5 Insulator body 8 Mating connector terminal (pin terminal)
22 Plate-like portion 24 Contact piece portion 32 Receiving portion 33 Solder accumulation space 52 Opening 57 Cable outlet 58 First receiving surface 59 Second receiving surface 100 Coaxial cable 110 Central conductor

Claims (2)

A sheet metal contact member that integrally has a contact piece for fitting / removing the terminal of the mating connector in the height direction and a conductor connection piece to which the central conductor of the coaxial cable is soldered and connected to lead the coaxial cable to the outside. housed in to have an insulator body having an opening that the cable outlets and the contact piece faces, total height portion of the conductor connection piece, a side portion of the contact piece and the contact piece and the cable outlets In the coaxial cable connector that is disposed within the height range of the contact piece at a location between
The contact piece is provided with two outer edges extending substantially parallel to the cable drawing direction and one outer edge extending in a direction perpendicular to the cable drawing direction and connecting the cable drawing side ends of the two outer edges without interruption. A plate-shaped portion, and two contact piece portions that are bent and connected to each of two outer edges extending substantially parallel to the cable drawing direction of the plate-shaped portion,
The conductor connection piece is an extension extending from the one outer edge extending in a direction perpendicular to the cable drawing direction of the plate-like portion to the cable drawing side substantially flush with the plate-like portion, and the extension portion is the above-mentioned Bent from the one outer edge extending in the direction perpendicular to the cable drawing direction of the plate-like part, and arranged on the cable drawing side between the two contact pieces, and a folded part at the intermediate part of the extension part Forming a void for a valley-shaped solder pool adjacent to the cable drawing side between the two contact pieces,
The conductor connecting piece is provided with a receiving portion for inserting the central conductor of the coaxial cable into the upper portion of the cavity and supporting the inserted central conductor at the tip of the extension portion. Connector for cable. The contact piece member includes a first receiving surface provided on the insulator body and overlapping the plate-like portion, and a second receiving surface provided on the insulator body and overlapping the valley bottom portion of the valley-shaped conductor connecting piece. The coaxial cable connector according to claim 1 , wherein the connector is fixed to the insulator body by being sandwiched between the surfaces.

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