JP6160844B2 - connector - Google Patents

Description

  The present invention relates to a connector such as a high-speed transmission connector used for internal wiring of an in-vehicle device or connection between other electronic devices.

  With the recent increase in communication speed of in-vehicle devices such as car navigation systems and car audio and other electronic devices, signal terminals are surrounded by metal members for internal wiring of in-vehicle devices and connections between electronic devices. A high-speed transmission connector with a strong structure is used.

  As shown in FIG. 7, this type of high-speed transmission connector 50 holds a signal terminal 51 in a connection direction having a board connection portion 511 extending downward at the rear end, and each signal terminal 51. An inner insulator 52 made of an insulating resin and a conductive metal shield body 54 integrally or integrally with a sleeve 53 covering the outside of the inner insulator 52 are provided, and the signal terminal 51 is composed of the metal sleeve 53 and the shield body 54. It surrounds (see, for example, Patent Document 1).

  In this type of connector 50, an insulating resin fitting guide portion 55 to which the mating connector is fitted is assembled to the front portion of the shield body 54, and the key groove formed in the fitting guide portion 55 is assembled. The key protruding from the outer periphery of the mating connector is guided.

  And the main-body part of the shield body 54 is formed in the shape which has the accommodating part 541 opened to the rear end and the lower surface by die-casting, and the connector 50 assembles the fitting guide part 55 from the front of the shield body 54, The inner insulator 52 and the signal terminals 51, 51... Are inserted and assembled from the rear end opening of the shield body accommodating portion 541, and then assembled by closing the rear end opening of the accommodating portion 541 with a metal closing plate 56. It has a structure.

  In addition, this type of connector 50 can place the center of gravity rearward by making the shield body 54 disposed rearward by die-casting, with the front portion protruding outward from the edge with respect to the board. Even in the case of so-called mid-mounting, it can be stably placed on the substrate, and mounting work can be performed in that state.

Utility Model Registration No. 3194472

  However, in the conventional techniques as described above, the main body part of the shield body or the entire shield body is formed of a die-cast product, and the die-cast product is more expensive than the press-processed product. It was a factor.

  In addition, since the conventional connector has a structure in which the inner insulator and the signal terminal are inserted from the rear opening of the shield body housing portion, a closing plate made of a conductive metal material for closing the rear opening is required. The inner insulator and the fitting guide portion need to be separately molded.

  Therefore, this type of conventional connector requires at least five parts: an inner insulator, a fitting guide portion, a signal terminal, a shield body, and a closing plate. The number of parts of the entire connector increases, and the assembly work is complicated. Therefore, it has been a factor that hinders product cost reduction.

  Therefore, in view of such a conventional problem, the present invention has been made for the purpose of providing a connector such as a high-speed transmission connector that has a low number of parts, is easy to assemble, and is inexpensive while ensuring high shielding performance. is there.

The feature of the invention according to claim 1 for solving the conventional problems as described above and achieving an intended purpose is to hold one or a plurality of signal terminals directed in the connector connecting direction and the signal terminals. In a connector comprising an inner insulator made of insulating resin, a conductive metal sleeve covering the outside of the inner insulator, and a conductive metal shield connected to the sleeve, the inner insulator is integrated. The mold member is formed on the outer side of the inner insulator portion. The sleeve insertion portion into which the sleeve is inserted from the front opening, and the inner insulator portion penetrates in the connector connecting direction. The terminal insertion hole into which the signal terminal is inserted from the opening on the rear surface thereof is vertically penetrated so as to communicate with the sleeve insertion portion on both sides of the sleeve insertion portion. And a pair of shield insertion portion that, the sleeve insert, flexure length of time of the shield member is in contact is formed between the inserted the sleeve and the outer periphery of the inner insulator portion, the shield Comprises a flat top plate portion, a side plate portion extending downward from both side edges of the top plate portion, and a rear end closing plate extending downward from the rear edge of the top plate portion, By incorporating the body from the upper surface side of the mold member, the lower end of the side plate portion is exposed to the lower surface of the mold body through the seal insertion portion, the side plate portion is connected to the outer periphery of the sleeve, and the terminal insertion The rear of the hole is in the connector covered with the rear end closing plate.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the shield body is integrally formed by punching a conductive metal plate and bending it.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the side plate portion is integrally provided with a contact convex portion protruding inward.

  According to a fourth aspect of the present invention, in addition to the structure of any one of the first to third aspects, the mold member is a fitting guide made of an insulating resin in which a mating connector is fitted to the front end of the mold member main body. The part is supported integrally, and the shield body is incorporated in the mold member main body.

  According to a fifth aspect of the present invention, in addition to the structure of any one of the first to fourth aspects, the sleeve includes a retaining piece cut and raised toward the front, and a front edge of the sleeve is inserted into the sleeve. In addition to engaging with an engaging step formed on the outer peripheral surface portion of the portion, it is in contact with the front edge portion of the side plate portion.

As described above, the connector according to the present invention includes one or a plurality of signal terminals directed in the connector connecting direction, an inner insulator portion made of an insulating resin that holds the signal terminals, and a conductive material that covers the outside of the inner insulator portion. In a connector comprising a metal sleeve and a conductive metal shield connected to the sleeve, the connector comprises a mold member that is integrally provided with the inner insulator portion, and the mold member includes the inner insulator. A sleeve insertion portion formed on the outside of the portion, through which the sleeve is inserted from the front opening, a terminal insertion hole through which the inner insulator portion penetrates in the connector connection direction, and the signal terminal is inserted from the rear surface opening, and a pair of shield insertion portion on both sides of the sleeve insertion part penetrates vertically so as to communicate with the sleeve insertion portion, the three The bush insertion portion is formed with a bending allowance when the shield body comes into contact between the inserted sleeve and the outer periphery of the inner insulator portion, and the shield body includes a flat top plate portion, A side plate portion extending downward from both side edges of the top plate portion; and a rear end closing plate extending downward from the rear edge of the top plate portion; and incorporating the shield body from the upper surface side of the mold member. Thus, the lower end of the side plate portion is exposed to the lower surface of the mold body through the seal insertion portion, the side plate portion is connected to the outer periphery of the sleeve, and the rear of the terminal insertion hole covers the rear end closing plate. As a result, the number of parts can be reduced and the assembly process can be reduced as compared with the conventional product, and the manufacturing cost can be reduced accordingly.

  Further, in the present invention, the shield body is integrally formed by punching a conductive metal plate material and bending it so that the manufacturing cost can be reduced as compared with a conventional die-cast product. .

  Furthermore, in the present invention, the side plate portion is integrally provided with a contact convex portion protruding inward so that the sleeve and the shield body can be connected with an appropriate contact pressure.

  Furthermore, in the present invention, the mold member integrally supports a fitting guide portion made of an insulating resin with which a mating connector is fitted to the front end of the mold member main body, and the shield body is incorporated in the mold member main body. As a result, the insulator part made of insulating resin and the fitting guide part can be integrally formed, the number of parts can be reduced compared to the conventional product, and the shield body made of metal and heavy in weight can be obtained. Since it is incorporated in the rear mold member body, the center of gravity of the entire connector can be placed rearward even when a fitting guide is provided, and the front part is mounted outside the edge with respect to the board. Even in the case of so-called mid-mounting, it can be stably placed on the substrate and mounting work can be performed in that state.

  Furthermore, in the present invention, the sleeve includes a retaining piece cut and raised toward the front, and a front edge of the sleeve engages with an engagement step portion formed on an outer peripheral surface portion of the sleeve insertion portion. In addition, by making contact with the front edge portion of the side plate portion, it is possible to prevent the sleeve from coming out of the mold member and to obtain a stable contact state between the sleeve and the shield body.

It is the perspective view which shows an example of the connector which concerns on this invention, Comprising: (a) is the figure seen from the front upper side, (b) is the figure seen from the back lower side. It is an exploded perspective view same as the above. (A) is the longitudinal cross-sectional view same as the above, (b) is the cross-sectional view. (A) is the front view which shows the mold member in FIG. 1, (b) is the back view, (c) is the top view. It is a longitudinal cross-sectional view of the sleeve in FIG. (A) is a front view which shows the shield body in FIG. 1, (b) is the same top view, (c) is the same longitudinal cross-sectional view. It is a longitudinal cross-sectional view which shows an example of the conventional connector.

  Next, an embodiment of the connector according to the present invention will be described based on the embodiment shown in FIGS. In the figure, symbol A is a connector, and symbol B is a mounting board.

  The connector A includes a plurality of signal terminals 1, 1... Facing the connector connection direction, and a molded member 22 integrally including an inner insulator portion 21 made of an insulating resin that holds the signal terminals 1, 1. , Comprising a conductive metal sleeve 3 covering the outside of the inner insulator portion 21 and a conductive metal shield body 4 connected to the sleeve 3 and extending downward from the rear ends of the signal terminals 1, 1. The board connecting portion 11 is connected to the mounting board B, and the shield body 4 is grounded to the mounting board B.

  As shown in FIG. 2, each signal terminal 1, 1... Is integrally formed of a conductive metal material, and extends downward from the terminal body 12 facing the connector connecting direction and the rear end of the terminal body 12. The terminal body 12 is held by the inner insulator portion 21, and the lower end of the substrate connection portion 11 protrudes from the lower surface of the mold member 2 in this state.

  In addition, the front end portion of the terminal body 12 is integrally provided with a tip contact portion 121 formed in a pin shape having an outer diameter smaller than that of the body.

  As shown in FIG. 4, the mold member 2 is integrally molded with an insulating resin, and an inner insulator portion 21 that holds the signal terminals 1, 1..., A mold member main body 22 that integrally holds the inner insulator, And a fitting guide 23 into which the connector is fitted.

  The fitting guide portion 23 is formed in a cylindrical shape having key grooves 231, 231... For guiding fitting keys formed on the outer periphery of the mating connector on the inner peripheral portion, and is integrated with the front end of the mold member main body 22. It is supported.

  The inner insulator portion 21 is formed in a columnar shape with the axial direction facing the connector connection direction, and is integrated with the mold member main body 22 in such a manner that the front portion protrudes into the fitting guide portion 23 from the front surface of the mold member main body 22. It has become.

  The inner insulator portion 21 is provided with a plurality of terminal insertion holes 24, 24 ... penetrating in the connector connecting direction, and the signal terminals 1, 1 ... are respectively inserted from the rear surface openings. Yes.

  Further, the front end portion of the inner insulator portion 21 is formed with a fitting recess 211 surrounded by a plurality of fitting protrusions protruding forward from the peripheral edge of the front end surface, and is inserted into the terminal insertion holes 24, 24. The tip contact portion 121 of each signal terminal 1, 1... Protrudes from the front end surface into the fitting recess 211, and this tip contact portion 121 is connected to the signal terminal of the mating connector.

  The mold member main body 22 is formed in a rectangular parallelepiped shape, and is disposed outside the inner insulator portion 21. A sleeve insertion portion 25 into which the sleeve 3 is inserted from the front opening thereof, and sleeve insertion portions 25 on both sides of the sleeve insertion portion 25. A pair of shield insertion portions 26, 26 penetrating vertically so as to communicate with each other is provided.

  The mold member main body 22 is formed with a recessed terminal insertion opening 27 on the rear end side of the inner insulator portion 21, and the signal terminals 1, 1. .. are inserted into the terminal insertion holes 24, 24.

  Further, the mold member main body 22 is formed with a slit hole-like closing plate insertion portion 28 penetrating vertically on the inner side (front side) of the terminal insertion opening 27 at the rear end portion. By inserting the rear end closing plate 43, the terminal insertion opening 27 is closed and shielded.

  The sleeve insertion portion 25 is opened in the front end surface of the mold member main body 22 and is formed in an annular cross-sectional hole shape matched with the shape of the sleeve 3. By inserting the sleeve 3 from the front end opening, the signal terminals 1, 1. Is covered by the mold member main body 22 and covers the outer periphery of the inner insulator portion 21 where the.

  The sleeve insertion portion 25 has a radial width, that is, a distance between the inner peripheral surface of the sleeve insertion portion 25 and the outer peripheral surface of the inner insulator portion 21 is larger than the thickness of the sleeve 3, and The inner peripheral surface is formed in alignment with the outer diameter of the sleeve 3, and a bending allowance is formed between the inserted sleeve 3 and the outer periphery of the inner insulator portion 21 when the shield body 4 comes into contact. .

  The shield insertion portions 26, 26 are formed as slit holes penetrating vertically on both sides of the mold member main body 22, and the inside communicates with the sleeve insertion portion 25, so that the shield body 4 is connected to the upper surface side of the mold member main body 22. By incorporating, side plate portions 42, 42 to be described later are inserted, and the side plate portions 42, 42 can come into contact with the sleeve 3 in the sleeve insertion portion 25.

  A top plate accommodating recess 29 for accommodating a top plate portion 41 of the shield body 4 to be described later is formed on the upper surface portion of the mold member main body 22, and the upper surface of the shield body 4 and the upper surface of the mold member main body 22 are substantially the same. It can be accommodated in a flat state.

  As shown in FIG. 5, the sleeve 3 is formed in a cylindrical shape having both axial ends opened by pressing a conductive metal material, and has a front cylindrical portion 31 having an inner diameter substantially the same as the outer shape of the inner insulator portion 21; An inner diameter is slightly larger than that of the inner insulator portion 21, and a rear cylinder portion 32 that is inserted into the sleeve insertion portion 25 is provided.

  Further, the sleeve 3 has an avoidance window portion 321 below the rear end of the rear cylinder portion 32, and covers the outside of the inner insulator portion 21 while making contact with the substrate connection portion 11 of the signal terminals 1, 1. I try not to.

  The sleeve 3 is provided with retaining pieces 33, 33 cut and raised toward the front on both sides of the rear cylinder portion 32, and after the retaining pieces 33, 33 are inserted into the sleeve insertion portion 25, a desired position is obtained. The front edge engages with an engagement step portion 251 formed on the outer peripheral surface portion of the sleeve insertion portion 25, so that forward movement is restricted.

  Further, the retaining pieces 33, 33 are engaged with the engaging step portion 251 so that the outer surfaces thereof are in contact with the shield body 4, more specifically, the front edge portions of side plate portions 42, 42 described later. The retaining pieces 33, 33 are supported by the sleeve 3 and the engaging step 251 and elastically contact the shield body 4, and the sleeve 3 and the shield body 4 are connected with an appropriate contact pressure. It is like that.

  As shown in FIG. 6, the shield body 4 is integrally formed by pressing a conductive metal plate, that is, by punching the conductive metal plate into a desired shape and bending it. Part 41, side plate parts 42, 42 extending downward from both side edges of top plate part 41, and rear end closing plate 43 extending downward from the rear edge of top plate part 41.

  Each of the side plate portions 42 and 42 is formed at a height matched to the height of the mold member main body 22, and pin-like board connection terminals 421 and 421 are integrally projected from the lower end, and the shield insertion portions 26 and 26. Is inserted into the lower surface of the mold member main body 22 through the lower openings of the shield insertion portions 26 and 26, and the board connection terminals 421 and 421 protrude from the lower surface of the mold member main body 22. ing.

  The board connection terminals 421 and 421 are inserted into through holes (not shown) formed in the mounting board B and soldered, whereby the shield body 4 is grounded to the mounting board B, and the mounting board B It can be fixed to.

  Further, each side plate portion 42, 42 is integrally provided with a contact convex portion 422 that protrudes inwardly on the inner surfaces facing each other, and when inserted into the shield insertion portions 26, 26, it is shown in FIG. As described above, the contact convex portion 422 is pressed against the outer peripheral surface of the sleeve 3.

  The contact convex part 422 is formed in a shape that bulges inwardly in the shape of pressing the metal plate material constituting the side plate parts 42, 42.

  Each side plate portion 42, 42 is provided with a locking portion 423 protruding from the front and rear side edges, and a step portion 424 having a different height from the lower end is formed. This step portion 424 is formed by the shield insertion portions 26, 26. So that the locking portion 423 is engaged with the front and rear inner edges of the shield insertion portions 26 and 26 so as to be fixed in the shield insertion portions 26 and 26. It has become.

  The rear end closing plate 43 is formed in a rectangular shape aligned with the closing plate insertion portion 28, and locking portions 431 and 431 are integrally projected on both side edges thereof, and the locking portions 431 and 431 are the closing plates. By being engaged with the inner edge of the insertion part 28, it is fixed in the closing plate insertion part 28.

  To assemble this connector A, as shown in FIG. 2, first, the sleeve 3 is inserted into the sleeve insertion portion 25 from the front of the mold member 2, and the signal terminals 1, 1. Insert into 24, 24 ....

  Next, in this state, the shield body 4 is assembled from the upper surface side of the mold member 2, and both side plate portions 42 and 42 of the shield body 4 are inserted into the shield insertion portions 26 and 26, respectively, and the rear end closing plate 43 is closed. Insert into the insertion part 28.

  As a result, the outer side of the inner insulator portion 21 holding the signal terminals 1, 1... Is covered with the sleeve 3, and the side plate portions 42 and 42 are connected to the outer peripheral surface of the sleeve 3.

  Further, the upper surface of the mold member main body 22, the top plate portion 41 and the side plate portions 42, 42 of the side shields 4 are covered, and the rear of the terminal insertion holes 24, 24. The connector A has a structure surrounded by a sleeve 3 and a shield body 4 in which signal terminals 1, 1.

  In the connector A configured as described above, the resin inner insulator portion 21 and the fitting guide portion 23 are integrally formed, and the shield body 4 is integrally provided with the rear end closing plate 43. The number of parts can be reduced.

  Further, by incorporating the shield body 4 from the upper surface side of the mold member 2, the connection between the shield body 4 and the sleeve 3 and the opening of the signal terminals 1, 1... As a result, the assembly process is reduced compared to conventional products.

  Furthermore, since the shield body 4 is integrally formed by punching a conductive metal plate material and bending it, it can be manufactured at a lower cost than a conventional die-cast product.

  Furthermore, the mold member 2 is integrally provided with a fitting guide portion 23 made of an insulating resin to which the mating connector is fitted at the front end of the mold member main body 22, and the shield body 4 is incorporated into the mold member main body 22. Therefore, since the heavy metal member is disposed rearward, the center of gravity of the entire connector A can be disposed rearward, so that a so-called mid-mount method can also be supported.

  Furthermore, in this connector A, the sleeve 3 and the shield body 4 are the outer peripheral surfaces of the contact convex portion 422 and the sleeve 3 projecting inside the shield body side body portion 42, respectively, and the retaining piece 33 and the side plate portion of the sleeve 3. Since it is a structure which contacts with 42, a contact state is obtained stably.

  In the above-described embodiment, the case where a plurality of signal terminals 1, 1... Are provided has been described.

  Moreover, although the above-mentioned Example demonstrated the example which provided the fitting guide part 23 integrally with the mold member 2, the fitting guide part 23 does not necessarily need to be provided.

A connector B mounting board 1 signal terminal 11 board connection part 12 terminal body 121 tip contact part 2 mold member 21 inner insulator part 211 fitting recess 22 mold member body 23 fitting guide part 24 terminal insertion hole 25 sleeve insertion part 251 engagement Step portion 26 Shield insertion portion 261 Abutting portion 27 Terminal insertion opening 28 Closure plate insertion portion 29 Top plate accommodating recess 3 Sleeve 31 Front cylinder portion 32 Rear cylinder portion 33 Retaining piece 4 Shield body 41 Top plate portion 42 Side plate portion 421 Board connection terminal 422 Contact convex part 423 Locking part 424 Step part 43 Rear end closing plate 431 Locking part

Claims (5)

One or a plurality of signal terminals directed in the connector connection direction, an inner insulator portion made of an insulating resin that holds the signal terminals, a conductive metal sleeve that covers the outside of the inner insulator portion, and connected to the sleeve In a connector provided with a shield made of conductive metal,
A mold member integrally including the inner insulator portion;
The mold member is formed on the outer side of the inner insulator portion, and a sleeve insertion portion into which the sleeve is inserted from a front opening thereof, and the inner insulator portion is penetrated in a connector connecting direction, and the signal terminal from the rear surface opening. And a pair of shield insertion portions penetrating vertically so as to communicate with the sleeve insertion portion on both sides of the sleeve insertion portion,
The sleeve insertion portion is formed with a bending allowance when the shield body contacts between the inserted sleeve and the outer periphery of the inner insulator portion,
The shield body includes a flat top plate portion, side plate portions extending downward from both side edges of the top plate portion, and a rear end closing plate extending downward from the rear edge of the top plate portion. Prepared,
By incorporating the shield body from the upper surface side of the mold member, the lower end of the side plate portion is exposed to the lower surface of the mold body through the seal insertion portion, and the side plate portion is connected to the outer periphery of the sleeve, and A connector characterized in that the rear of the terminal insertion hole is covered with the rear end closing plate.   The connector according to claim 1, wherein the shield body is integrally formed by punching a conductive metal plate and bending it.   The connector according to claim 1, wherein the side plate portion is integrally provided with a contact protrusion protruding inward.   The mold member integrally supports a fitting guide portion made of an insulating resin into which a mating connector is fitted at a front end of the mold member main body, and the shield body is incorporated into the mold member main body. The connector according to any one of?   The sleeve includes a retaining piece cut and raised toward the front, and a front edge of the sleeve engages with an engagement step formed on the outer peripheral surface of the sleeve insertion portion, and the front of the side plate portion. The connector according to claim 1, wherein the connector is in contact with an edge portion.

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