JP2016051679A - Cable connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable connector capable of reducing a stress occurring at a solder joint between a contact and a circuit board, without causing reduction in the assembling efficiency or up-sizing of the cable connector, regardless of whether or not there is a lock arm.SOLUTION: A cable connector 10 includes a connector body 11, a plurality of mutually insulated contacts 13 juxtaposed to the connector body 11, a circuit board 14 for solder joining the board connection 13b of the contact 13 and a cable 1, respectively, and an insulating mold 15(16, 17) that is a cover at a part for connecting the cable 1 to the connector body 11. In the base 11a of the connector body 11, a space 20 to be filled with inner mold resin when molding an inner mold 16 is provided, and the inner mold 16 is formed integrally with the inner mold resin (anchor 30) that is held in the space 20 in the connector body 11.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a connector having a plurality of mutually insulated contacts (contact terminals) held by a connector body that can be fitted to a mating connector, and particularly to a cable connector that is attached to the end of a cable. This relates to the improvement of the kink resistance of a cable connector provided with a circuit board for soldering each of the cables.

  This type of cable connector has a mold (covering the part that connects the cable to the connector body) by hand, and inserts the connector body into the mating connector and engages it to bring the contact into contact with the mating contact. Since the electrical connection between the cable and the cable is obtained, stress may easily be applied to the soldered connection between the contact and the circuit board when it is squeezed in the engaged state during separation, etc., possibly causing the substrate to peel off or bend the contact. Is expensive. As an improvement measure, conventionally, a pair of lock arms held together with the contacts in the housing (connector body) are fixed to the circuit board by soldering so as to reduce the stress generated at the solder connection portion between the contact and the circuit board. (See Patent Document 1).

JP 2005-85469 A

However, in the connector, the pair of lock arms is usually only held by the connector body, and is not soldered to the circuit board, and is disposed further outside the contacts at both ends. Not only does the cable connector increase in size due to a decrease in the efficiency of assembling the cable connector and the size of the circuit board, but also there is a problem that it cannot be applied to a cable connector that does not have a lock arm.
The present invention has been made in view of the above problems, and the object thereof is not to reduce the assembly efficiency or increase the size of the cable connector, and between the contact and the circuit board regardless of the presence or absence of the lock arm. It is an object of the present invention to provide a cable connector that can reduce the stress generated in the solder connection portion.

As means for solving the above-mentioned problems, the invention of claim 1 is directed to a connector main body in which a fitting portion to be fitted to a mating connector projects forward, a fitting separation direction and a fitting separation direction in the connector main body. A mating contact contact portion that is arranged in parallel at a predetermined interval along a width direction orthogonal to a height direction orthogonal to the exposed portion and exposed to the fitting portion, and a base portion on the rear side of the fitting portion of the connector body. A plurality of mutually insulated contacts provided with a board connecting portion protruding rearward from the rear surface, a circuit board for solder-connecting the board connecting portion of the contact and the cable, and the cable to the connector body In a cable connector comprising an insulating mold that is a cover for a connecting portion, a space that fills the base of the connector body with the mold resin when the mold is molded The is to provide a cable connector which is characterized by providing.
A second aspect of the present invention provides the cable connector according to the first aspect, wherein the space portion is a through-hole penetrating from a rear surface of the base portion of the connector main body to a surface adjacent to the rear surface. To do.
According to a third aspect of the present invention, in the second aspect of the invention, the space portion penetrates from the rear surface of the base portion of the connector main body to the upper surface and the lower surface that are adjacent to the rear surface and face each other in the height direction. A cable connector is provided that is a through hole having a T-shape when viewed from the side.
According to a fourth aspect of the present invention, in the invention of the second or third aspect, the space portion is a plate-shaped through hole that is sandwiched between two planes facing each other in the width direction and orthogonal to the circuit board. A characteristic cable connector is provided.
According to a fifth aspect of the present invention, there is provided the cable connector according to any one of the first to fourth aspects, wherein the space portion is provided between two adjacent contacts. is there.
The invention of claim 6 is the invention according to any one of claims 1 to 4, wherein only a plurality of contacts excluding a single specific contact are used among the contacts, and the space portion is to be installed with the specific contact The present invention provides a cable connector characterized by being provided so as to overlap the position.

According to the invention of claim 1, by providing a space portion for filling the mold resin in the base portion of the connector body at the time of molding, the anchor effect of the mold resin filled in the space portion in the connector body is achieved. In addition, the connector body and the mold can be firmly coupled and integrated to improve the cable connector's resistance to twisting. For this reason, the stress which arises in the solder connection part between a contact and a circuit board can be reduced, without causing the fall and enlargement of the assembly efficiency of a cable connector, and irrespective of the presence or absence of a lock arm.
According to the invention of claim 2, since the space portion is a through-hole penetrating from the rear surface of the base portion of the connector body to the surface adjacent to the rear surface, the mold resin is prevented from coming off in the space portion in the connector body. The cable connector can be imparted with higher kink resistance. In addition, the space in the connector body can be completely filled without causing poor filling of the mold resin.
According to the invention of claim 3, the space portion is a T-shaped through hole that is adjacent to the rear surface from the rear surface of the base portion of the connector body and penetrates the upper surface and the lower surface facing each other in the height direction. For this reason, while the contacts are arranged in parallel in the connector body, the space can be easily and more effectively added to the connector body.
According to the invention of claim 4, since the space portion is a plate-like through-hole that is sandwiched between two planes facing each other in the width direction and orthogonal to the circuit board, contacts are arranged in parallel on the connector body. In this process, the space can be added more easily and more effectively in the connector body.
According to the invention of claim 5, the space portion can be filled with the mold resin by using an existing mold of the mold by providing the space portion between two adjacent contacts.
According to the invention of claim 6, by using only a plurality of contacts except for a single specific contact among the contacts, the space portion is provided to overlap with a predetermined position of the specific contact so that the existing mold of the mold is provided. Can be used to fill the space with mold resin.

It is an external appearance perspective view of the cable connector of Example 1 of this invention. It is a disassembled perspective view which shows the internal structure of the cable connector of FIG. It is a cross-sectional side view which shows the internal structure of the cable connector of FIG. It is a top view which shows the internal structure of the cable connector of FIG. It is a cross-sectional side view which shows the space part provided in the cable connector of FIG. It is a cross-sectional side view which shows the space part provided in the cable connector of FIG. 1, and the mold resin with which it was filled. It is an external appearance perspective view which shows the shape (shape of space part) of mold resin with which the space part provided in the cable connector of FIG. 1 was filled. It is an external appearance perspective view of the cable connector of Example 2 of this invention. It is a front view of the cable connector of FIG. It is a cross-sectional side view which shows the internal structure of the cable connector of FIG. It is a top view which shows the internal structure of the cable connector of FIG. It is a cross-sectional side view which shows the space part provided in the cable connector of FIG. It is a cross-sectional side view which shows the space part provided in the cable connector of FIG. 8, and the mold resin with which it was filled.

  A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an external perspective view of a cable connector 10 according to a first embodiment of the present invention. The cable connector 10 is a plug connector based on the universal serial bus (hereinafter referred to as “USB”) (2.0) standard, and is attached to the end of the cable 1 based on the same standard. As shown in FIG. 4, the cable 1 includes four core wires 2, a shield 3 that covers the periphery of the four core wires 2, and a sheath 4 that covers the periphery of the shield 3. Each core wire 2 is formed of a covered electric wire in which a conductor 2a is covered with an insulator 2b.

  As shown in FIGS. 2 to 4, the cable connector 10 includes a connector body (plug body) 11 that is an insulator. The connector main body 11 includes a cylindrical metal shell 12 that is a shield member that covers the outer peripheral side of the connector main body 11, and includes a rectangular parallelepiped base portion 11a that is fitted to the rear portion of the metal shell 12, and a lower front half portion of the base portion 11a. A rectangular flat plate-like fitting portion (plug portion) 11 b that protrudes to the front side (the lower side of the drawing in FIGS. 2 and 3) and fills the front lower half portion in the metal shell 12 is integrally formed. The connector main body 11 is covered with a metal shell 12 on the outer peripheral side thereof, so that a mating contact insertion portion 11c that is open only on the front side is formed at the top of the mating portion 11b. 2.0) is inserted into the receptacle connector based on the standard), so that the mating contact is inserted into the mating contact insertion portion 11c and fitted into the mating connector. The connector body 11 is formed by molding an insulating synthetic resin, and the metal shell 12 is formed by punching a conductive metal plate into a predetermined shape and bending it.

  Further, the cable connector 10 includes four mutually insulated contacts 13 held by the connector body 11 as shown in FIGS. The four contacts 13 are connected to the connector main body 11 in the fitting / separating direction (insertion / removal direction) (up and down direction in FIG. 2 and FIG. 3) and in the height direction (right and left in FIG. 2). A direction is set in parallel along a width direction (vertical direction on the paper surface in FIG. 2: right and left direction on the paper surface in FIG. 3) perpendicular to the direction perpendicular to the paper surface in FIG. Each contact 13 includes a mating contact contact portion (fixed contact) 13a exposed on the upper surface of the fitting portion 11b of the connector main body 11 (the bottom surface of the mating contact insertion portion 11c) and the rear surface of the base portion 11a of the connector main body 11 from the rear surface. A protruding board connecting portion 13b is provided. The four contacts 13 are collectively formed in a state connected to the carrier by punching and bending a conductive metal plate material into a predetermined shape, and then integrated with the connector body 11 by insert molding. Thereafter, the carrier is separated, and is held in the connector main body 11 as four independent contacts 13.

  Further, as shown in FIGS. 3 and 4, the cable connector 10 is a rigid printed circuit that solder-connects the board connection portion 13 b of each connector 13 and the conductor 2 a of each core wire 2 exposed at the end of the cable 1. A circuit board 14 made of a substrate (PCB) is provided. The front portion of the circuit board 14 is soldered to the board connection portion 13b of each contact 13, so that the circuit board 14 protrudes rearward from the rear surface of the base portion 11a, opposite to the fitting portion 11b of the connector body 11. Supported horizontally.

  Moreover, the cable connector 10 is provided with the insulating mold 15 which is a cover of the part which connects the cable 1 to the connector main body 11, as shown in FIG. As shown in FIG. 3, the mold 15 includes an inner mold 16 and an overmold 17. That is, as shown in FIG. 2 to FIG. 4, the insulating connecting portion 13 b of the contact 13, the circuit board 14, and each core wire 2 exposed at the end of the cable 1 are primarily insulated by insert molding. An inner mold 16 is formed, and then, as shown in FIG. 1 and FIG. 3, secondary molding is performed by insert molding around the base 11a of the connector body 11, the inner mold 16, and the shield 3 exposed at the end of the cable 1. Thus, an insulating overmold 17 is formed. The inner mold 16 is formed in a substantially rectangular parallelepiped outer shape as shown in FIGS. 2 to 4, and the rear surface of the connector body 11 is in a state in which the front surface is in contact (contact) with the rear surface of the base portion 11 a of the connector body 11. Side by side. As shown in FIG. 1, the overmold 17 is formed in a substantially rectangular parallelepiped outer shape that is slightly larger than the inner mold 16, and the fitting portion 11 b of the connector main body 11 protrudes from the center of the front end surface (front surface). The cable 1 is pulled out from the center of the opposite end surface (rear surface). And this mold 15 covers the part which connects the cable 1 to the connector main body 11 in the state which protruded the fitting part 11b of the connector main body 11 from the front-end | tip of the overmold 17, and thereby the connector main body 11 and the cable 1 are connected. In addition to protecting the connection portion, the handle portion is held by hand when the cable connector 10 is fitted and separated (inserted / removed) from the mating connector.

  Moreover, the cable connector 10 is provided with the cylindrical metal back shell which covers the outer peripheral side of the inner mold 16, as shown in FIG. 2 and FIG. The metal back shell includes a back shell body 18 having a U-shaped cross section that opens upward and a back shell cover 19 having a U-shaped cross section that opens downward, and the back shell body 18 extends from the rear end to the rear side. The protruding cable crimping portion 18a is integrally formed, and the back shell cover 19 is integrally formed with a cable pressing piece portion 19a protruding rearward from the rear end. The metal back shell body 18 and the metal back shell cover 19 are formed by punching a conductive metal plate material into a predetermined shape and bending it. As shown in FIG. 3, the metal back shells 18 and 19 are overlaid on the shield 3 with the cable holding piece 19 a exposed at the end of the cable 1 in a state of covering the outer peripheral side of the inner mold 16. Thereafter, the cable pressing piece 19a and the shield 3 exposed at the end of the cable 1 are integrally crimped and fixed to the cable crimping portion 18a. Thereafter, the overmold 17 is formed around the base 11a of the connector main body 11, the inner mold 16, and the end of the cable 1 from above the metal shell 12 and the metal back shells 18 and 19 by insert molding. The connector 10 is completed. In addition, as shown in FIG. 1, the strain relief 17a is integrally formed in the overmold 17, and the cable 1 is pulled out through this strain relief 17a.

  The cable connector 10 holds the mold 15 (overmold 17) by hand, and inserts and fits the connector main body 11 (fitting portion 11b) protruding from the tip of the mold 15 into the mating connector. The 13 mating contact contact portions 13a are brought into contact with the mating contact, and an electrical connection between the mating contact and each core wire 2 of the cable 1 is obtained.

  Note that an arrow A in FIG. 2 indicates a position of an inlet (gate) into which the melted insulating inner molding resin flows into the mold cavity when the inner mold 16 is molded. That is, the inner molding resin is filled from a location corresponding to the rear side of the inner mold 16. Further, an arrow B in FIG. 1 indicates a position of an inlet (gate) into which molten insulating overmold resin flows into the mold cavity when the overmold 17 is molded. That is, the overmold resin is filled from a location corresponding to one side of the rear portion of the overmold 17 (specifically, the strain relief 17a).

<Summary Configuration According to the Present Invention>
In the cable connector 10, as shown in FIGS. 4 to 6, a space portion (cavity) 20 filled with the inner mold resin is provided in the base portion 11 a of the connector body 11 when the inner mold 16 is formed. That is, the inner mold 16 is formed integrally with an inner mold resin (an anchor portion 30 described later) held in the space portion 20 in the connector body 11. As a result, the anchor effect of the inner mold resin filled in the space portion 20 in the connector body 11 allows the connector body 11 and the inner mold 16 to be firmly joined and integrated, and the cable connector 10 can be improved in resistance to twisting. it can. That is, the rigidity with respect to bending and twisting forces between the connector main body 11 and the inner mold 16 can be increased. For this reason, the stress which arises in the solder connection part between the contact 13 and the circuit board 14 can be reduced, without causing the fall of assembly efficiency of the cable connector 10 and enlarging, and irrespective of the presence or absence of a lock arm. Here, as shown in FIGS. 4, 6, and 7, the inner mold 16 is identical to the space portion 20 in the connector body 11 by the inner mold resin filled in the space portion 20 in the connector body 11. The shaped anchor portion 30 is integrally formed in a state of protruding from the front surface of the inner mold 16 to the front side, and the anchor portion 30 is held in the space portion 20 in the connector main body 11.

  In the cable connector 10, the space 20 includes a through-hole penetrating from the rear surface of the base portion 11 a of the connector main body 11 to at least one surface adjacent to the rear surface, as shown in FIGS. 4 to 6. As a result, the inner mold resin is retained in the space portion 20 in the connector main body 11 in a state of being prevented from coming off, and higher cable resistance can be imparted to the cable connector 10. Further, in the space portion 20, the rearward opening 21 opened on the rear surface of the base portion 11 a of the connector body 11 is used as an inner mold resin inlet (gate), and at least on one surface adjacent to the rear surface of the base portion 11 a of the connector body 11. By using the opened outward opening 22 as an air vent (air bend), the space 20 in the connector main body 11 can be completely filled without causing poor filling (short shot) of the inner mold resin. In addition, when the space part 20 is a through-hole penetrating only one surface adjacent to the rear surface from the rear surface of the base portion 11a of the connector main body 11, the one surface includes an upper surface, a lower surface, and a left side surface adjacent to the rear surface of the base portion 11a. Of the total four surfaces on the right side, it is preferable to select one of the upper surface and the lower surface facing each other in the height direction. Thereby, although not shown, the space portion 20 becomes an L-shaped through hole penetrating from the rear surface of the base portion 11a of the connector main body 11 to the upper surface or the lower surface adjacent to the rear surface. During installation, at least one space 20 can be easily and effectively added to the connector main body 11.

  In the cable connector 10, the space portion 20 is a through-hole penetrating from the rear surface of the base portion 11 a of the connector main body 11 to at least one surface adjacent to the rear surface, as shown in FIGS. 4 to 6. The base portion 11a has a T-shaped through hole that penetrates from the rear surface to the upper surface and the lower surface that are adjacent to the rear surface and face each other in the height direction. Accordingly, at least one space portion 20 can be easily and more effectively added to the connector body 11 while the contacts 13 are arranged in parallel on the connector body 11.

  In the cable connector 10, the space portion 20 is a through-hole penetrating from the rear surface of the base portion 11 a of the connector main body 11 to at least one surface adjacent to the rear surface, as shown in FIGS. 4 to 6. Side-view T-shaped through-holes penetrating from the rear surface of the base portion 11a to the upper surface and the lower surface that are adjacent to the rear surface and face each other in the height direction, and are two planes (parallel) facing each other in the width direction It consists of a T-shaped flat plate-shaped through-hole that is perpendicular to the circuit board 14 and is sandwiched by the surface). Accordingly, at least one space 20 can be easily and more effectively added to the connector main body 11 while the contacts 13 are arranged in parallel on the connector main body 11.

  In the cable connector 10, as shown in FIG. 4, the space portion 20 is provided between two adjacent contacts 13, 13, so that the inner mold resin can be formed using the existing mold of the inner mold 16. Can be filled into the space 20.

  In the cable connector 10, as shown in FIG. 4, the space 20 is formed between the right end contact 13 and the left adjacent contact 13 and between the left end contact 13 and the right adjacent contact 13. A total of two (plural) are provided at two locations. That is, the inner mold 16 is formed integrally with the inner mold resin (two anchor portions 30) held in the two space portions 20 in the connector main body 11, respectively. Thereby, higher twisting resistance can be imparted to the cable connector 10.

  A second embodiment of the present invention will be described with reference to FIGS. FIG. 8 is an external perspective view of the cable connector 40 according to the second embodiment of the present invention. The cable connector 40 is a plug connector based on the micro-USB (2.0) standard, and is the same as the first embodiment. (2.0) It is attached to the end of the cable 1 based on the standard.

  As shown in FIGS. 9 to 11, the cable connector 40 includes a connector main body (plug main body) 41 that is an insulator. This connector main body 41 integrally forms a rectangular parallelepiped base portion 41a and a fitting portion 41b that protrudes from the front upper and lower intermediate portion of the base portion 41a to the front side (the lower side of the drawing in FIGS. 10 and 11).

  Further, in this connector main body 41, its fitting / separating direction (insertion / removal direction) (perpendicular direction on the paper surface in FIG. 9: vertical direction on the paper surface in FIGS. 10 and 11) and the height direction (FIG. 9) perpendicular to this fitting / separating direction. Up and down direction of the paper surface: the left and right direction of the paper surface of FIG. 10: the vertical direction of the paper surface of FIG. 11) The both ends of the width direction (the horizontal direction of the paper surface of FIG. 9: the vertical direction of the paper surface of FIG. 10: the horizontal direction of the paper surface of FIG. A pair of lock arm accommodating portions 41e is formed. A front portion of each lock arm housing portion 41e is opened upward on the upper surface of the fitting portion 41b, and a rear end of each lock arm housing portion 41e is opened rearward on the rear surface of the base portion 41a.

  Further, in the connector main body 41, a mating contact insertion portion 41c is formed on the upper surface of the fitting portion 41b between the pair of lock arm accommodating portions 41e in a concave shape opened to the upper side and the front side. The connector main body 41 includes a cylindrical metal shell 42 that is a shield member that covers the outer peripheral side of the fitting portion 41b. The outer peripheral side of the fitting portion 41b is covered with the metal shell 42, so that the mating contact insertion portion 41c is Opened only on the front side. In the metal shell 42, an opening 42a is provided at a portion overlapping the pair of lock arm accommodating portions 41e.

  In the connector main body 41, five contact accommodating portions 41d are formed between the pair of lock arm accommodating portions 41e. The five contact accommodating portions 41d are arranged in parallel at a predetermined interval along the width direction of the connector main body 41 between the pair of lock arm accommodating portions 41e. The front part of each contact accommodating part 41d is opened in the mating contact insertion part 41c, and the rear end of each contact accommodating part 41d is opened rearward on the rear surface of the base part 41a.

  And this connector main body 41 is fitted by the other party connector in the state by which the other party contact was inserted in the other party contact insertion part 41c by inserting the fitting part 41b in the other party connector. The connector body 41 is formed by molding an insulating synthetic resin, and the metal shell 42 is formed by punching a conductive metal plate into a predetermined shape and bending it.

  Further, as shown in FIGS. 8 to 11, the cable connector 40 includes a pair of lock arms 48 held in a cantilever shape by the connector main body 41. The pair of lock arms 48 is held at both ends in the width direction of the connector main body 41 in a state where one pair of lock arms 48 is housed in each lock arm housing portion 41e. At the tip (front end) of each lock arm 48, an upward projecting engagement portion 48a that is elastically displaceable in the height direction of the connector main body 41 is provided. The engaging portion 48a protrudes from the upper surface of the metal shell 42 through the opening 42a. The rear end of each lock arm 48 is located in the lock arm accommodating portion 41e and is not soldered to a circuit board 44 described later. The pair of lock arms 48 is formed so that the engaging portion 48a is engaged with the mating connector when the fitting portion 41b of the connector main body 41 is inserted and mated with the mating connector. 41a is prevented from coming off, and the cable connector 40 is fixed (half-locked) to the mating connector.

  Further, as shown in FIGS. 9 to 11, the cable connector 40 includes four mutually insulated contacts 43 held in a connector body 41 in a cantilever shape. That is, the cable connector 40 uses only four contacts 43 except for a single specific contact (not shown) used for ID recognition not involved in power transmission and signal transmission. The four contacts 43 are a single contact accommodating portion 41d that is a position where a specific unused contact is to be set in the connector body 41, that is, the fourth contact accommodating portion 41e from the right in FIGS. In the state of being accommodated in the four contact accommodating portions 41d except for the “empty contact accommodating portion” and the code “41D”), the connector main body 41 includes a pair of lock arm accommodating portions 41e. The connector main body 41 is arranged in parallel along the width direction at a predetermined interval. A tip (front end) of each contact 43 is provided with an upwardly protruding mating contact contact portion (movable contact) 43a that can be elastically displaced in the height direction of the connector body 41. The mating contact contact portion (movable contact) 43a protrudes into the mating contact insertion portion 41c. At the rear end of each contact 43, a board connecting portion 43b that protrudes rearward from the rear surface of the connector main body 41 is provided. The four contacts 43 are collectively formed in a state of being connected to a carrier by punching and bending a conductive metal plate material into a predetermined shape, and thereafter accommodating the four contacts excluding the empty contact accommodating portion 41D. The parts 41d are collectively inserted and accommodated from the rear, and then the carrier is separated, so that the four independent contacts 43 are held by the connector body 41.

  Further, as shown in FIGS. 10 and 11, the cable connector 40 is a rigid printed circuit that solder-connects the board connection portion 43b of each connector 43 and the conductor 2a of each core wire 2 exposed at the end of the cable 1 respectively. A circuit board 44 made of a substrate (PCB) is provided. The circuit board 44 has its front portion soldered to the board connection portion 43b of each contact 43 so that it protrudes rearward from the rear surface of the base portion 41a, opposite to the fitting portion 41b of the connector body 41. Supported horizontally.

  Moreover, the cable connector 40 is provided with the insulating mold 45 which is a cover of the part which connects the cable 1 to the connector main body 41, as shown in FIG. 8 thru | or FIG. As shown in FIGS. 10 and 11, the mold 45 includes an inner mold 46 and an overmold 47. That is, as shown in FIGS. 10 and 11, insert molding is performed around the base 41a of the connector main body 41, the solder connection portion 43b of the contact 43, the circuit board 44, and the ends of the cable 1 where the core wires 2 are exposed. First, an insulating inner mold 46 is formed, and thereafter, as shown in FIGS. 8 to 11, a secondary insulating overmold 47 is formed around the inner mold 46 by insert molding. The As shown in FIGS. 10 and 11, the inner mold 46 is formed in a substantially rectangular parallelepiped outer shape, and its front end wraps around the base 41a of the connector main body 41 and is in contact (contact) with the outer peripheral side surface and the rear surface. The connector main body 41 is connected to the rear side. As shown in FIGS. 8 to 11, the overmold 47 is formed in a substantially rectangular parallelepiped outer shape that is slightly larger than the inner mold 46, and the fitting portion 41 b of the connector main body 41 extends from the center of the front end surface (front surface). The cable 1 is pulled out from the center part of the opposite end face (rear face). And this mold 45 covers the part which connects the cable 1 to the connector main body 41 in the state which protruded the fitting part 41b of the connector main body 41 from the front-end | tip of the overmold 47, and thereby the connector main body 41 and the cable 1 are connected. In addition to protecting the connection portion, it becomes a handle portion held by hand when the cable connector 40 is fitted and separated (inserted / removed) from the mating connector. In addition, as shown in FIG. 8, the strain relief 47a is integrally formed in the overmold 47, and the cable 1 is pulled out through this strain relief 47a. By forming the mold 45 in this way, the cable connector 40 is completed.

  The cable connector 40 holds the mold 45 (overmold 47) by hand, and inserts and fits the connector main body 41 (fitting portion 41b) protruding from the tip of the mold 45 into the mating connector. The mating contact contact portion 43a of 43 is brought into contact with the mating contact, and an electrical connection between the mating contact and each core wire 2 of the cable 1 is obtained.

  Note that an arrow C in FIG. 11 indicates a position of an inlet (gate) into which the melted insulating inner molding resin flows into the cavity of the mold when the inner mold 46 is molded. That is, the inner molding resin is filled from a location corresponding to the rear side of the inner mold 46. Further, an arrow D in FIG. 8 indicates a position of an inlet (gate) into which molten insulating overmold resin flows into the mold cavity when the overmold 47 is molded. That is, the overmold resin is filled from a location corresponding to one side of the rear portion of the overmold 47 (specifically, the strain relief 47a).

<Summary Configuration According to the Present Invention>
In the cable connector 40, as shown in FIGS. 11 to 13, a space portion (cavity) 50 filled with the inner mold resin is formed in the base portion 41 a of the connector main body 41 when the inner mold 46 is formed. That is, the inner mold 46 is formed integrally with an inner mold resin (an anchor portion 60 described later) held in the space 50 in the connector main body 41. Thereby, the connector body 41 and the inner mold 46 are firmly joined and integrated by the anchor effect of the inner mold resin filled in the space portion 50 in the connector body 41, and the twist resistance of the cable connector 40 can be improved. it can. That is, the rigidity with respect to the bending or twisting force between the connector main body 41 and the inner mold 46 can be increased. For this reason, the stress which arises in the soldering connection part between the contact 43 and the circuit board 44 can be reduced, without causing the fall of assembly efficiency and enlargement of the cable connector 40, and irrespective of the presence or absence of a lock arm. Here, as shown in FIGS. 11 and 13, the inner mold 46 has an anchor portion having the same shape as the space portion 50 in the connector main body 41 by the inner mold resin filled in the space portion 50 in the connector main body 41. 60 is integrally formed in the inner mold 46 so as to protrude from the contact surface that contacts the rear surface of the base portion 41a of the connector body 41 to the inside of the hood-like front end portion that contacts the front surface and the outer peripheral surface of the base portion 41a of the connector body 41. The anchor portion 60 is held in the space portion 50 in the connector main body 41.

  Moreover, in the cable connector 40, the space part 50 consists of a through-hole penetrating from the rear surface of the base 41a of the connector main body 41 to at least one surface adjacent to the rear surface, as shown in FIGS. Thereby, the inner mold resin is held in the space portion 50 in the connector main body 41 in a state in which the inner mold resin is prevented from coming off, and higher cable resistance can be imparted to the cable connector 40. Further, in the space portion 50, the rearward opening 51 opened on the rear surface of the base portion 41 a of the connector main body 41 is used as an inner mold resin inlet (gate), and at least on one surface adjacent to the rear surface of the base portion 41 a of the connector main body 41. By using the opened outward opening 52 as an air vent (air bend), the space 50 in the connector main body 41 can be completely filled without causing a defective filling (short shot) of the inner mold resin. In addition, when the space part 50 is a through-hole penetrating only one surface adjacent to the rear surface from the rear surface of the base portion 41a of the connector body 41, the one surface includes an upper surface, a lower surface, and a left side surface adjacent to the rear surface of the base portion 41a. Of the total four surfaces on the right side, it is preferable to select one of the upper surface and the lower surface facing each other in the height direction. Thereby, although not shown, the space portion 50 becomes an L-shaped through hole penetrating from the rear surface of the base portion 41a of the connector main body 41 to the upper surface or the lower surface adjacent to the rear surface. During installation, at least one space 50 can be easily and effectively added to the connector main body 41.

  In the cable connector 40, the space 50 is a through-hole penetrating from the rear surface of the base portion 41a of the connector main body 41 to at least one surface adjacent to the rear surface, as shown in FIGS. The base portion 41a has a T-shaped through hole penetrating from the rear surface to the upper surface and the lower surface that are adjacent to each other and face each other in the height direction. Accordingly, at least one space 50 can be easily and more effectively added to the connector main body 41 while the contacts 43 are arranged in parallel on the connector main body 41.

  In the cable connector 40, the space 50 is a through-hole penetrating from the rear surface of the base portion 41a of the connector main body 41 to at least one surface adjacent to the rear surface, as shown in FIGS. Of the base portion 41a from the rear surface to the upper surface and the lower surface that are adjacent to each other in the height direction, and are T-shaped through holes that are opposed to each other in the height direction. It consists of a T-shaped flat plate-shaped through hole that is sandwiched between and orthogonal to the circuit board 44. Accordingly, at least one space 50 can be easily and more effectively added to the connector main body 41 while the contacts 43 are arranged in parallel on the connector main body 41.

  Further, in the cable connector 40, as shown in FIGS. 11 to 13, the space portion 50 is provided so as to overlap with the planned position of the specific contact, that is, the rear portion of the empty contact accommodating portion 41D. The inner mold resin can be filled in the space 50 using a mold. Further, since the empty contact accommodating portion 41D does not penetrate the base portion 41a of the connector main body 41 due to the space portion 50, when the inner mold 46 is formed, the inner mold resin is fitted to the fitting portion of the connector main body 41 through the empty contact accommodating portion 41D. It can prevent flowing into 41b.

  The cable connector 10 of Example 1 attached to the both ends of the same cable 1, respectively. The cable connector 10 attached to one end of the cable 1 is fitted (connected) to a mating connector mounted on a personal computer (hereinafter referred to as “PC”), while the cable connector 10 attached to the other end of the cable 1. Is connected to a peripheral connector of a PC or a mating connector mounted on another PC, and the PC and its peripheral devices or PCs are electrically connected to each other. Power supply current can be supplied to peripheral devices.

  The cable connector 10 of Example 1 attached to one end of the same cable 1 and the cable connector 40 of Example 2 attached to the other end. While the cable connector 10 of the first embodiment is fitted to the mating connector mounted on the PC, the cable connector 40 of the second embodiment is mounted on a small portable electronic device such as a mobile phone (smart phone), a tablet computer, or a digital camera. Can be connected to the mating connector, and the PC and the small portable electronic device can be electrically connected, and signals such as data can be exchanged between these connected devices and charging (power) current can be supplied from the PC to the small portable electronic device. . Further, if the cable connector 10 of the first embodiment is connected to a mating connector mounted on an AC adapter, or connected to a mating connector mounted on a portable power source, the power source is changed from an outlet power source or a portable power source to a small portable electronic device. Charging current can be supplied.

  As mentioned above, although the Example of this invention was described, this invention is not limited to it, Various changes can be implemented within the range which does not change the summary of this invention. For example, in the cable connectors of Examples 1 to 4, the mold was formed by dividing the insert molding into two primary and secondary insert moldings (divided into an inner mold and an overmold). May be. In this case, the cable connectors of Examples 1, 3, and 4 do not include a metal back shell. In addition, when the mold is divided into two primary and secondary insert moldings, it is possible to arbitrarily select whether or not to wrap up to the base portion of the connector main body with the inner mold. The inner mold only needs to be in contact with at least the rear surface of the base portion of the connector main body (the surface protruding the contact board connecting portion).

DESCRIPTION OF SYMBOLS 1 Cable 10, 40 Cable connector 11, 41 Connector main body 11a, 41a Base part 11b, 41b Fitting part 13, 43 Contact 13a, 43a Opposition contact contact part 13b, 43b Board connection part 14, 44 Circuit board 15, 45 Mold 20, 50 space part 30,60 anchor part

Claims (6)

A connector main body with a mating portion that mates with a mating connector protruding forward,
A mating contact contact portion that is arranged in parallel at a predetermined interval along the width direction perpendicular to the fitting separation direction and the height direction perpendicular to the fitting separation direction on the connector body, and is exposed to the fitting portion. And a plurality of mutually insulated contacts provided with a board connecting portion protruding rearward from the rear surface of the base portion on the rear side of the fitting portion of the connector body,
A circuit board that solder-connects the board connection portion of the contact and the cable, and
In a cable connector comprising an insulating mold that is a cover of a portion connecting the cable to the connector body,
A cable connector characterized in that a space for filling the mold resin is provided in the base of the connector body when the mold is formed.   The cable connector according to claim 1, wherein the space portion is a through-hole penetrating from a rear surface of the base portion of the connector main body to a surface adjacent to the rear surface.   The space portion is a T-shaped through hole that is adjacent to the rear surface from the rear surface of the base portion of the connector main body and penetrates the upper surface and the lower surface that face each other in the height direction. The cable connector according to claim 2.   4. The cable connector according to claim 2, wherein the space portion is a plate-like through hole that is sandwiched between two planes facing each other in the width direction and orthogonal to the circuit board.   The cable connector according to any one of claims 1 to 4, wherein the space portion is provided between two adjacent contacts.   5. The method according to claim 1, wherein only a plurality of contacts other than a single specific contact are used among the contacts, and the space portion is provided to overlap with a predetermined installation position of the specific contact. Cable connector as described in

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