JP5930272B2 - Connector manufacturing method - Google Patents

Description

  The present invention relates to a connector.

  A differential transmission method is known in which a differential signal pair consisting of signals having opposite phases is transmitted to two signal lines forming a pair. Since the differential transmission system has a feature that the data transmission speed can be increased, it has recently been put into practical use in various fields.

  For example, when the differential transmission method is used for data transmission between the device and the liquid crystal display, the device and the liquid crystal display are provided with a display port connector designed according to the display port standard. As this display port standard, VESA Display Port standard 1.0 and its version 1.1a are known.

  This display port connector is a kind of connector for differential signals, and has a first connection side for connection to a connection partner and a second connection side for connection to a substrate of a device or a liquid crystal display. Yes. The first connection side configuration is strictly determined by the display port standard because of the relationship with the connection partner, but the second connection side configuration is relatively free. This type of differential signal connector is disclosed in Patent Document 1.

  The connector disclosed in Patent Document 1 will be briefly described with reference to FIG. In the illustrated connector, a large number of contacts 2 are held side by side in a direction perpendicular to the paper surface on a body 1 made of synthetic resin. The contact 2 has a horizontal portion 3 and a vertical portion 4. At the lower end of the vertical portion 4, a connection portion 5 is formed that is connected to a substrate or the like to which a connector is attached.

  In the state of FIG. 9, the vertical portion 4 is exposed to the outside while being inserted into the groove 6 of the body 1. Next, a spacer (not shown) that is a resin member is formed in the notch 7 formed in the body 1. ), Most of the vertical portion 4 is obscured. And it positions by inserting the boss | hub 8 provided in the body 1 in the positioning hole of a board | substrate (not shown).

JP 2009-21165 A

  However, in the connector disclosed in Patent Document 1, a portion exposed to the outside of the contact is merely covered with a spacer, so that it is assumed that a void remains around the contact. This void causes a variation in the impedance of the connector.

  In addition, in a connector that is surface-mounted like the connector disclosed in Patent Document 1, high accuracy is required for alignment between the contact connection portion and the circuit to be attached. The contact may move due to the location, and the connecting portion may be displaced.

  Further, when the connector is downsized, there is a problem that it is difficult to manufacture and assemble a spacer which is a separate part.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a connector that has less impedance variation, can suppress contact movement, and is easy to manufacture.

According to one aspect of the present invention, in a method for manufacturing a connector mounted on an attachment target, a connection portion connected to the attachment target, a holding portion spaced from the connection portion, and between the connection portion and the holding portion. an intermediate portion, and providing a plurality of contacts having a bent portion which is bent between the holding portion and the intermediate portion, providing a holding member which holds together the holder by insert molding, the holding providing a locator for positioning the member relative to the mounting object, and comprising providing the catalytically covering dielectric to said intermediate portion, said recess provided in the locator, the dielectric, the plurality of contacts method for producing a connector, characterized in that binds to said locator by fitting engagement together formed and the concave portion by the intermediate portion and the insert molding is obtained.

According to the present invention, it is possible to provide a method for manufacturing a connector that has little variation in impedance, can suppress contact movement, and is easy to manufacture .

1 is an external perspective view of a connector according to an embodiment of the present invention. The front view of the connector of FIG. The disassembled perspective view seen from one direction of the connector of FIG. The disassembled perspective view seen from the other direction of the connector of FIG. The figure for demonstrating one process in manufacture of the connector of FIG. The perspective view which shows the state which assembled the internal component of the connector of FIG. The disassembled perspective view of the connector which concerns on other embodiment of this invention. The perspective view which shows the state which assembled the internal component of the connector of FIG. Sectional drawing for demonstrating the connector currently disclosed by patent document 1 (Unexamined-Japanese-Patent No. 2009-21165).

  A connector according to an embodiment of the present invention will be described with reference to FIGS.

  The illustrated connector 10 is a differential signal connector mounted on an attachment target (not shown) such as a printed circuit board. The upper contact assembly 11, the lower contact assembly 12, and the connector 10 are attached to the attachment target. It includes a locator 13 for positioning, and a conductive connector shell 14 that collectively surrounds the upper and lower contact assemblies 11, 12 and the locator 13.

  The upper contact assembly 11 includes an insulating upper housing 15 as a holding member and a number of conductive upper contacts 16 arranged and held in the upper housing 15. The upper housing 15 has a fitting protrusion 17 extending forward.

  Each of the upper contacts 16 includes a horizontal portion 16a arranged on the upper surface of the fitting protrusion 17, a bent portion 16b which is exposed to the rear of the upper housing 15 from the rear end of the horizontal portion 16a and is bent downward, and a bent portion. A vertical portion 16c extending vertically downward from the portion 16b and a connecting portion 16d that is bent at a right angle from the lower end of the vertical portion 16c and soldered to the wiring pattern on the upper surface of the attachment target by the SMT structure. Hereinafter, the large number of upper contacts 16 may be collectively referred to as a contact group.

  A large number of the upper contacts 16 are partially held in the upper housing 15 by insert molding. In addition, the part hold | maintained at the upper housing 15 among the horizontal parts 16a is called a holding part here.

  In addition, a substantially rectangular parallelepiped dielectric 18 is attached to the vertical portions 16c of the many upper contacts 16 by insert molding. The dielectric 18 covers most of the vertical portion 16 c from the outside and is integrated with the upper contact 16. As a result, the contact group is held in an array state by the dielectric 18. Furthermore, the protrusion 18a for engagement is formed in the dielectric material 18 at the both ends in the arrangement direction of a contact group, respectively. In addition, the part covered with the dielectric material 18 among the vertical parts 16c is called an intermediate part here.

  The lower contact assembly 12 includes an insulating lower housing 21 and a number of conductive lower contacts 22 arranged and held in the lower housing 21.

The lower housing 21 has a pair of posts 21 a for aligning with the upper housing 15. Each of the lower contacts 22 has a horizontal portion 22a arranged along the lower surface of the fitting protrusion 17 of the upper housing 15, and a vertical portion 22b exposed rearward of the lower housing 21 and extending vertically downward. ing. A lower end portion of the vertical portion 22b of the lower contact 22 is a terminal portion 22c that is inserted into a through hole formed in an attachment target and fixed by soldering.

  The locator 13 is provided with a pair of positioning bosses 23 which are fitted in positioning holes (not shown) to be attached on the lower surface. The rear surface of the locator 13 is formed with a recess 24 that matches the shape and dimensions of the dielectric 18. Engaging protrusions 24 a corresponding to the engaging protrusions 18 a of the dielectric 18 are formed on the side surfaces of the recess 24 facing each other. A key groove 24 b is formed on the bottom surface of the recess 24.

  The connector shell 14 has a plurality of fixing legs 14a and 14b. By engaging these fixing legs 14a and 14b with the object to be attached, the differential signal connector 10 is firmly fixed to the object to be attached.

  Now referring to FIG. 5 as well, a method of manufacturing the upper contact assembly 11 will be referred to. Before forming the bent portion 16b in the upper contact 16, the upper housing 15 and the dielectric 18 are simultaneously insert-molded into the contact group to obtain a form as shown in FIG. Thereafter, the contact group is bent to form a bent portion 16b as shown in FIG. At this time, since both sides of the bent portion 16b are integrally held by the upper housing 15 and the dielectric 18, it can be easily bent into a predetermined shape without making the contact group uneven. Reference numeral 18b denotes a key corresponding to the key groove 24b.

  Thus, it is advantageous in the manufacturing process that the upper housing 15 and the dielectric 18 are simultaneously insert-molded into the contact group. However, the present invention is not limited to this, and the upper housing 15 and the dielectric 18 may be formed separately.

  FIG. 6 shows a state where the upper contact assembly 11 and the lower contact assembly 12 are assembled to the locator 13. When the upper contact assembly 11 is assembled to the locator 13, the dielectric 18 is inserted into the recess 24 of the locator 13 while the key 18 b is fitted in the key groove 24 b. After the insertion, the dielectric protrusion 18a is engaged with the engagement protrusion 24a, so that the dielectric 18 is fitted and coupled to the recess 24.

  Further, the upper and lower contact assemblies 11 and 12 and the locator 13 are collectively surrounded by the connector shell 14 to obtain the connector 10 of FIG. However, a part of the locator 13 protrudes to the outside of the connector shell 14 and is exposed on the side surface of the connector 10.

  According to the connector described with reference to FIGS. 1 to 6, the portion of the upper contact 16 exposed from the upper housing 15 is contact-covered by the insert mold of the dielectric 18, and the dielectric is placed on the locator 13 positioned on the mounting target. Since the structure is formed by fitting and coupling 18, the impedance is matched and the displacement of the connecting portion 16 d of the upper contact 16 can be prevented. In addition, since a part of the locator 13 protrudes outside the connector shell 14, the surface mounting of the connector with high positional accuracy is possible by image recognition of the protruding portion.

  A connector according to another embodiment of the present invention will be described with reference to FIGS. Similar parts are denoted by the same reference numerals and description thereof is omitted.

  In FIG. 7, before the upper contact assembly 11 is assembled, the entire vertical portion 16c of the upper contact 16 is exposed to the outside. On the other hand, on the rear surface of the locator 13, a plurality of parallel grooves 26 extending in the vertical direction with the same pitch as the vertical portion 16c are formed. Each of the grooves 26 has a size capable of receiving substantially the entire vertical portion 16c of the upper contact 16 with a small gap. Therefore, the operation of inserting the vertical portion 16c into the groove 26 is easy.

  FIG. 8 shows a state where the upper contact assembly 11 and the lower contact assembly 12 are assembled to the locator 13. When the upper contact assembly 11 is assembled to the locator 13, the vertical portion 16 c of the upper contact 16 is inserted into the groove 26 of the locator 13. As a result, the same function as the dielectric 18 of the connector 10 described with reference to FIGS. 1 to 6 is achieved. Thereafter, the groove 26 is filled with a resin, which is a dielectric material, so as to cover almost the entire vertical portion 16c of the upper contact 16, and a high effect is obtained. Further, the resin to be filled is made of a resin having a dielectric constant different from that of the locator 13, so that the degree of freedom of impedance adjustment is increased. A portion of the vertical portion 16c that is covered with the cured resin is referred to herein as an intermediate portion.

  Also in this embodiment, the same connector as that of the connector 10 in FIG. 1 can be obtained.

  According to the connector described with reference to FIG. 7 and FIG. 8, the dielectric material formed by curing the resin contacts the portion exposed from the upper housing 15 of the upper contact 16 while being positioned on the attachment target. Therefore, the impedance is matched and the displacement of the connecting portion 16d of the upper contact 16 can be prevented. In addition, since a part of the locator 13 protrudes outside the connector shell 14, the surface mounting of the connector with high positional accuracy is possible by image recognition of the protruding portion.

  In addition, this invention is not limited to the said embodiment, The one part or all part can also be described like the following additional remarks, but it is not restricted to them.

(Appendix 1)
In the connector 10 mounted on the mounting target, the connecting portion 16d connected to the mounting target, a holding portion spaced from the connecting portion, an intermediate portion between the connecting portion and the holding portion, and the holding portion and the intermediate A plurality of contacts 16 having a bent portion 16b bent between the holding portion, a holding member 15 that integrally holds the holding portion by an insert mold, and a locator 13 that positions the holding member with respect to the attachment target And a dielectric 18 that covers the intermediate portion in contact and is coupled to the locator.

(Appendix 2)
The connector according to claim 1, wherein the locator has a recess 24, and the dielectric is integrally formed with the intermediate portion of the plurality of contacts by an insert mold and is fitted and coupled to the recess.

(Appendix 3)
In the connector 10 mounted on the mounting target, the connecting portion 16d connected to the mounting target, a holding portion spaced from the connecting portion, an intermediate portion between the connecting portion and the holding portion, and the holding portion and the intermediate A plurality of contacts 16 having a bent portion 16b bent between the plurality of contacts, and a locator 13 for positioning the plurality of contacts with respect to the attachment target, wherein the locator is the intermediate portion of the plurality of contacts A connector characterized by having a plurality of grooves 26 that respectively receive the intermediate portions and covering the intermediate portion.

(Appendix 4)
The connector according to appendix 3, wherein the groove is filled with a dielectric resin.

(Appendix 5)
The connector according to any one of appendices 1 to 4, wherein the holding member is positioned on the locator by boss fitting.

(Appendix 6)
The connector according to any one of appendices 1 to 5, further including a shell 14 that covers most of the holding member and the locator from the outside, wherein a part of the locator protrudes from the shell.

DESCRIPTION OF SYMBOLS 1 Body 2 Contact 3 Horizontal part 4 Vertical part 5 Connection part 6 Groove 7 Notch 8 Boss 10 Connector 11 Upper contact assembly 12 Lower contact assembly 13 Locator 13a Post 14 Connector shell 14a, 14b Fixing leg 15 Upper housing (Holding member)
16 Upper contact (contact group)
16a Horizontal portion 16b Bending portion 16c Vertical portion 16d Connection portion 17 Fitting projection 18 Dielectric 18a Engaging projection 18b Key 21 Lower housing 21a Post 22 Lower contact 22a Horizontal portion 22b Vertical portion 22c Terminal portion 23 Positioning boss 24 Recessed portion 24a Engaging projection 24b Key groove 25 Through hole 26 Groove

Claims (3)

In the method of manufacturing a connector mounted on an attachment target, a connection portion connected to the attachment target, a holding portion spaced from the connection portion, an intermediate portion between the connection portion and the holding portion, and the holding portion and the Preparing a plurality of contacts having a bent portion bent with an intermediate portion , providing a holding member integrally holding the holding portion with an insert mold, and positioning the holding member with respect to the attachment target providing a locator, and includes providing a catalytically covering dielectric to said intermediate portion, said recess provided in the locator, the dielectric, integrally formed by the intermediate portion and the insert molding of the plurality of contacts and and connector manufacturing method, characterized by binding to the locator by fitting engagement in said recess.   The method of manufacturing a connector according to claim 1, wherein the holding member is positioned on the locator by boss fitting. The holding member and covered with a shell most of the locator from the outside, causing the protruding part of the locator from the shell, the connector manufacturing method according to claim 1 or 2.

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