JP2018022682A - Receptacle connector and manufacturing method of receptacle connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receptacle connector capable of improving connection stability while suppressing quality reduction, and a manufacturing method of the receptacle connector.SOLUTION: A receptacle contact 41 comprising a contact part (a receptacle-side first contact part 411 and a receptacle-side second contact part 412) in contact with a plug contact 21 of a plug connector 12 and a connection part (a receptacle-side connection part 413) mounted on a substrate is disposed in a stationary metal mold member 611. In a state where a pair of width expanded portions 442 of a holding part 415 expanded outsides from both side edge positions of the contact part (the receptacle-side first contact part 411) is pressed ad abutted by a portion (a metal mold abutment part 615) of a movable metal mold member 651 moved to a mold fastening position with the stationary metal mold member 611 in a fitting direction B in which the plug connector 12 is fitted, a space for forming a shape of a housing 45 within a metal mold 16 is filled with a resin, thereby forming the housing 45 in which the width expanded portions 442 of the holding part 415 of the receptacle contact 41 are integrally molded.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a connector for connecting substrates such as electric devices and electronic devices, and more particularly to a receptacle connector that can be detachably fitted to a mating plug connector and a method for manufacturing the receptacle connector.

  Conventionally, electrical connection between substrates such as electric devices and electronic devices is achieved by fitting a plug connector mounted on one substrate and a receptacle connector mounted on the other substrate. In these conventional receptacle connectors, a plurality of receptacle contacts having a contact portion that contacts a plug contact of the plug connector and a connection portion connected to the other substrate are held and arranged in a housing in which the plug connector is fitted. (For example, see Patent Document 1 and Patent Document 2).

  In addition, the receptacle contact held and arranged in the housing as described above may be applied with a solvent such as conformal coating on the connection portion in order to prevent corrosion of the substrate.

JP 2012-238519 A JP 2013-016410 A

  However, if a gap is formed between the receptacle contact and the housing, the solvent applied to the connection portion may wet up to the contact portion, which may cause poor connection between the boards when mated with the plug connector. There is.

  Further, in order to prevent a gap from being formed between the receptacle contact and the housing, it is conceivable to integrally form the receptacle contact with the housing. However, in order to form integrally, the receptacle contacts must be clamped from both sides with a mold and filled with resin. In the conventional receptacle contact structure, there is no space for clamping without damaging the contact portion or the like. There is a risk that the hole of the mold is formed on both sides of the receptacle contact, and the quality of the receptacle connector is deteriorated.

  As described above, in the structure of the conventional receptacle connector, a hole due to the mold is formed when integrally molding, and there is a risk that the quality of the receptacle contact such as poor connection due to wetness of the solvent may be deteriorated. There has been a demand for a structure of a receptacle connector capable of improving the connection stability while suppressing the above-described problem.

  Therefore, the problem to be solved by the present invention is to provide a receptacle connector and a method of manufacturing the receptacle connector capable of improving connection stability while suppressing deterioration in quality.

In order to solve the above-described problems, a receptacle connector according to the present invention includes a plurality of receptacle contacts each having a contact portion that contacts a plug contact of the plug connector and a connection portion that is mounted on a substrate, and the receptacle contacts are held and arranged. A receptacle connector comprising a housing to which the plug connector is fitted,
The receptacle contact has an elastic part standing from the connection part, and a holding part horizontally provided in a flat shape from the elastic part,
Both ends of the holding portion in the width direction are covered with the housing on the lower surface side facing the substrate during mounting.

  In the receptacle connector, both ends in the width direction of the receptacle contact holding portion are covered with the housing on the lower surface side facing the substrate when mounted. For this reason, in order to prevent corrosion of the board, when a solvent such as conformal coating is applied to the connection part, the solvent applied to the connection part wets up to the contact part, and between the boards when mated with the plug connector. A situation in which a connection failure occurs can be prevented. Therefore, according to the receptacle connector of the present invention, it is possible to improve connection stability while suppressing deterioration in quality.

  In the receptacle connector according to one aspect of the present invention, both end portions in the width direction of the holding portion are a pair of width extending portions projecting outward from both side edge positions of the contact portion.

  In the receptacle connector according to one aspect of the present invention, the width dimension of each of the holding portion in the width direction is 0.03 mm or more and 0.12 mm or less. Since the width dimension of both end portions in the width direction of the holding portion is 0.03 mm or more and 0.12 mm or less, the holding stability of the receptacle contact by the housing can be improved while avoiding an increase in the size of the receptacle contact, and the solvent Can be prevented more reliably.

  In order to solve the above-described problem, a method of manufacturing a receptacle connector according to the present invention includes a contact portion that contacts a plug contact of a plug connector, a plurality of receptacle contacts having a connection portion that is mounted on a substrate, and the receptacle contact. And a housing to which the plug connector is fitted. A method of manufacturing a receptacle connector comprising: a plate-like member; A first step of forming the receptacle contact in a predetermined shape having a curved elastic portion, a holding portion laterally provided flat from the elastic portion, and the contact portion extending from the holding portion; A receptacle contact having a shape is connected to the one mold member constituting a mold composed of one mold member and the other mold member. A pair of width-expanded portions of the holding portion projecting outward from both side edge positions of the contact portion, and a clamping position with the one mold member from the direction in which the plug connector is fitted. In a state where the other mold member moved to the position is in pressure contact with the resin, a space forming the housing shape in the mold is filled with resin, thereby expanding the width of the holding portion of the receptacle contact. And at least a second step of forming the housing integrally formed.

  In the method of manufacturing the receptacle connector, the shape of the housing in the mold is formed in a state in which the portion of the mold member moved from the direction in which the plug connector is fitted is pressed against and contacted with the pair of width extension portions of the receptacle contact. Fill the space to be formed with resin. For this reason, the trace when the receptacle contact is held by the mold does not remain in the housing, and it is possible to suppress the formation of a gap between the receptacle contact and the housing (between the holding portion and the housing). it can. Therefore, it is possible to provide a method for manufacturing a receptacle connector capable of improving connection stability while suppressing deterioration in quality.

  In the method of manufacturing a receptacle connector according to one aspect of the present invention, the width extension portions each have a width dimension of 0.03 mm or more and 0.12 mm or less.

  Thus, when the width dimension of the said width expansion part is 0.03 mm or more and 0.12 mm or less, respectively, when filling resin into the space which forms the housing shape in a metal mold | die, the site | part of one metal mold member It is possible to prevent the receptacle connector from increasing in size while suppressing breakage of the pair of width-expanding portions pressed against each other.

  In the method for manufacturing a receptacle connector according to one aspect of the present invention, the one mold member is formed on a surface facing the holding portion, and a portion between the pair of width extending portions of the holding portion is placed. And a stepped portion that separates the pair of width-expanded portions from the opposing surfaces.

  In the method for manufacturing a receptacle connector according to an aspect of the present invention, in the second step, the pair of width-expanded portions of the holding portion separated by the stepped portion and the opposing surface of the one mold member When the resin is filled in between, the pair of width extension portions are covered with the housing on the lower surface side facing the substrate during mounting.

  According to the present invention, since no gap is formed between the receptacle contact and the housing, the solvent applied to the connection portion does not wet the contact portion and the like, and the connection stability is improved while suppressing deterioration in quality. It is possible to provide a receptacle connector that can be used and a method of manufacturing the receptacle connector.

It is an exploded perspective view for showing a schematic structure of an electrical connector which consists of a receptacle connector and a plug connector concerning this embodiment. It is the perspective view which showed the receptacle connector of FIG. 1 from the bottom face side. 3A is a side view of the receptacle connector of FIG. 1, and FIG. 3B is a cross-sectional view taken along line I-I in FIG. 3A. FIG. 4A is a view for showing a receptacle contact of a receptacle connector according to the present embodiment, FIG. 4A is a perspective view of the receptacle contact according to the present embodiment as viewed from one side, and FIG. It is the perspective view which looked at the receptacle contact which concerns on this embodiment from the other side, and FIG.4 (c) is a top view of the receptacle contact which concerns on this embodiment. 5A is a bottom view of the receptacle connector of FIG. 1, and FIG. 5B is a cross-sectional view taken along line II-II in FIG. 5A. FIG. 6A is a view for showing a receptacle connector tab portion according to the present embodiment, FIG. 6A is a perspective view of the receptacle connector tab portion according to the present embodiment as viewed from one side, and FIG. FIG. 5 is a perspective view of the receptacle connector tab portion according to the present embodiment as viewed from the other side. It is a figure for showing the composition of the metallic mold concerning this embodiment, Drawing 7 (a) is a perspective view showing one metallic mold member concerning this embodiment, and Drawing 7 (b) is this execution. It is a perspective view which shows the other mold member which concerns on a form. It is a perspective view which shows one metal mold | die member of Fig.7 (a). FIG. 9A is a perspective view for illustrating a state in which the other mold member according to the present embodiment is moved to a mold clamping position with one mold member, and FIG. 9A is the other mold according to the present embodiment. FIG. 9B is a perspective view illustrating a state in which the member is in contact with one mold member, and FIG. 9B illustrates a state in which a space forming the housing shape in the mold according to the present embodiment is filled with resin. It is a schematic sectional drawing for. FIG. 9 is a perspective view showing the relationship between the other mold member and the receptacle contact in a state where the other mold member is moved to the clamping position with the one mold member in FIG. (The receptacle contact is not shown).

  Hereinafter, a method for manufacturing a receptacle connector according to an embodiment of the present invention will be described with reference to the drawings. Note that the receptacle connector according to the present embodiment is a receptacle connector that constitutes an electrical connector that fits with a plug connector and connects between substrates of an electrical device or an electronic device.

[1. Schematic configuration of electrical connector]
First, the configuration of the electrical connector 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a diagram for illustrating a schematic configuration of an electrical connector 1 according to the present embodiment, and is an exploded perspective view of a plug connector 12 and a receptacle connector 14 that constitute the electrical connector 1.

  As shown in FIG. 1, the electrical connector 1 includes a plug connector 12 that is mounted on a substrate on one side, and a receptacle connector 14 that is mounted on a substrate on the other side. The plug connector 12 and the receptacle connector 14 can be detachably fitted, and the plug connector 12 and the receptacle connector 14 are mounted on a substrate, and are then attached in the direction of arrow A or arrow B (fitting direction A or fitting). The two connectors 12 and 14 are fitted in the mating direction B) to electrically connect the substrates.

  The plug connector 12 includes a plug contact 21 formed in a substantially L shape by pressing a conductive metal such as corson alloy, beryllium copper, phosphor bronze, and a housing described later. A block 25 to which 45 is fitted, and plug-side tab portions 27 arranged on both ends in the longitudinal direction X of the electrical connector 1.

  The plug contact 21 includes a plug-side first contact portion 211 and a plug-side second contact portion 212 that can come into contact with a receptacle contact 41, which will be described later, a plug-side connection portion 213 connected to one substrate, and a plug-side first contact. A plug-side curved portion 214 that is curved between the contact portion 211 and the plug-side second contact portion 212 is provided.

  The block 25 is made of an electrically insulating plastic, and has a pair of block edges 26a and 26b that are both edges extending in the longitudinal direction X. The pair of block edges 26a and 26b are held and arranged on the block edge 26a or the block edge 26b so that the plug-side first contact portions 211 of the plug contact 21 face each other. Further, the block edge portion 26 a and the block edge portion 26 b are curved, and the curved portion is continuous with the plug-side curved portion 214 along the longitudinal direction X.

  The block 25 continues along the longitudinal direction X between the pair of block edges 26a and 26b, that is, between the plug-side first contact portions 211 held and arranged on the block edge 26a or the block edge 26b. A block-side fitting port 251 having a concave shape is formed. The block-side fitting port 251 is formed so that a receptacle-side fitting convex portion 453 of the housing 45 described later can be inserted. The plug-side tab portion 27 is formed with a one-side substrate connection portion 271 that can be connected to one substrate.

  As shown in FIGS. 1 and 2A, the receptacle connector 14 includes a receptacle contact 41 formed by pressing a conductive metal such as a Corson alloy, beryllium copper, phosphor bronze, and the like, and the receptacle contact 41. A housing 45 that is held and arranged and into which the plug connector 12 is fitted, and a receptacle-side tab portion 47 that is disposed on both ends in the longitudinal direction X and is soldered to the other substrate.

  The housing 45 is formed by injection molding an electrically insulating plastic such as polybutylene terephthalate (PBT), polyamide (66PA, 46PA), liquid crystal polymer (LCP), polycarbonate (PC), or a synthetic material thereof. . The housing 45 is formed with a pair of housing edges 46a and 46b which are both edges extending in the longitudinal direction X. Receptacle contacts 41 are held and arranged on the pair of housing edges 46a and 46b. Further, the housing edge 46a and the housing edge 46b are curved, and the curved portion is continuous with the second curved portion 433, which will be described later, along the longitudinal direction X.

  As shown in FIG. 1, the housing 45 includes a holding hole 451 for holding the receptacle contact 41, receptacle-side fitting recesses 452a and 452b that are recessed in the fitting direction B side, a housing edge 46a, and a housing. It has a receptacle-side fitting convex part 453 having a substantially convex shape continuously along the longitudinal direction X between the edge part 46b and tab insertion holes 454 arranged in one and the other in the longitudinal direction X.

  The holding hole 451 is formed in a shape that allows elastic deformation of the receptacle-side first contact portion 411 in the width direction Y of the housing 45 when a later-described receptacle-side first contact portion 411 is elastically deformed. Yes.

  The receptacle-side fitting recesses 452a and 452b have a concave shape that is substantially the same as the concave shape formed by the receptacle-side first contact portion 411 and the receptacle-side second contact portion 412 described later. Then, housing recesses 462a and 462b extending continuously in the longitudinal direction X are formed in the housing 45 by the receptacle-side fitting recesses 452a and 452b, the receptacle-side first contact portion 411, and the receptacle-side second contact portion 412. Is done.

  The receptacle-side fitting projection 453 is formed so that the above-described block-side fitting opening 251 can be inserted. The tab insertion hole 454 is formed so that the plug-side tab portion 27 described above can be inserted.

[2. Configuration of receptacle contact]
Next, the configuration of the receptacle contact 41 will be described with reference to FIGS. 3B, 4 and 5B. 3B is a cross-sectional view taken along the line II in FIG. 3A, and FIG. 4 is a view for showing the receptacle contact 41 of the receptacle connector 14 according to the present embodiment. 4 (a) is a perspective view of the receptacle contact 41 as viewed from one side, FIG. 4 (b) is a perspective view of the receptacle contact 41 as viewed from the other side, and FIG. 4 (c) is a receptacle contact. FIG. 5B is a sectional view taken along the line II-II in FIG. 5A.

  As shown in FIGS. 3B, 4A, and 4B, the receptacle contact 41 includes a receptacle-side first contact portion 411 that contacts the plug-side first contact portion 211, and a plug-side second contact. It has a receptacle-side second contact portion 412 that comes into contact with the contact portion 212 and a receptacle-side connection portion 413 that is connected to the substrate on the other side.

  The receptacle contact 41 has an elastic portion 414 that is erected from the receptacle-side connection portion 413 and curved at least once, and a holding portion 415 that is horizontally provided in a flat shape from the elastic portion 414. The one contact part 411 extends from the holding part 415.

  More specifically, the elastic portion 414 includes a first bending portion 431 that is bent from the receptacle-side connection portion 413, a first standing portion 432 that extends to the side facing the holding portion 415, and a first standing portion 432. A second curved portion 433 that is curved with respect to the receptacle-side second contact portion 412;

  Further, the receptacle contact 41 faces the third curved portion 416 curved between the receptacle-side second contact portion 412 and the holding portion 415, the fourth curved portion 417 curved from the holding portion 415, and the holding portion 415. It has the 2nd standing part 418 extended in the side, and the 5th curved part 419 curved from the 2nd standing part 418. As shown in FIG. That is, the receptacle contact 41 is formed so as to be elastically deformable by bending at five locations between the receptacle-side first contact portion 411 and the receptacle-side connection portion 413.

  Further, the receptacle contact 41 includes a receptacle-side first contact portion 411, a fifth bending portion 419, a second standing portion 418, and a fourth bending portion between the receptacle-side first contact portion 411 and the receptacle-side connection portion 413. Reference numeral 417, a holding portion 415, a third bending portion 416, a receptacle-side second contact portion 412, a second bending portion 433, a first standing portion 432, a first bending portion 431, and a receptacle-side connection portion 413 are sequentially arranged. .

  The receptacle-side first contact portion 411 is formed with a narrow portion 511 that is narrower than the fifth bending portion 419. The narrow portion 511 facilitates insertion of the plug-side curved portion 214 between the receptacle-side first contact portion 411 and the receptacle-side second contact portion 412 when the plug contact 21 and the receptacle contact 41 are brought into contact with each other. In addition, the receptacle-side first contact portion 411 is elastically deformed so as to easily come into contact with the plug-side first contact portion 211, so that the width is smaller than that of the fifth bending portion 419.

  The receptacle-side second contact portion 412 is provided with a protruding portion 441 that protrudes toward the receptacle-side first contact portion 411. The protrusion 441 is formed so that the plug-side first contact portion 211 can come into contact therewith.

  Further, the holding portion 415 includes a pair of width extending portions 442 that are both ends in the width direction and project outward from both side edge positions of the receptacle-side first contact portion 411. Specifically, as illustrated in FIG. 4C, the width W <b> 1 of the holding portion 415 is changed by the pair of width extending portions 442 such that the receptacle-side first contact portion 411, the fifth bending portion 419, and the second standing portion 418. The width W3 of the width expansion portion 442 is, for example, 0.03 mm or more and 0.12 mm or less, respectively. If the width dimension W3 is smaller than 0.03 mm, when filling the resin filling portion 656 with the resin, the pair of width expansion portions 442 pressed against the width expansion portion contact portion 655 of the movable mold member 651 described later are damaged. This is because if the width dimension W3 exceeds 0.12 mm, the receptacle connector 14 increases in size. As shown in FIG. 5B, both end portions in the width direction of the holding portion 415 are covered with a housing 45 on the lower surface side facing the substrate during mounting. A central portion between both end portions in the width direction of the holding portion 415 is exposed to the outside.

  In the present embodiment, the receptacle contact 41 described above has a fourth bending portion 417, a holding portion 415, a third portion with respect to the receptacle-side first contact portion 411, the fifth bending portion 419, and the second standing portion 418. The case where the width of the bending portion 416, the receptacle-side second contact portion 412, the second bending portion 433, the first standing portion 432, the first bending portion 431, and the receptacle-side connection portion 413 is wider is illustrated. Although described, it is not limited to this. That is, the width of the receptacle contact 41 may be another shape as long as the width dimension of the holding portion 415 including the pair of width extending portions 442 is larger than the width dimension of the receptacle-side first contact portion 411.

[3. Receptacle side tab configuration]
Next, the configuration of the receptacle-side tab portion 47 will be described with reference to FIG. FIG. 6 is a view for showing the receptacle-side tab portions 47 located at both ends of the receptacle connector 14 according to the present embodiment, and FIG. 6A is a perspective view of the receptacle-side tab portion 47 viewed from one side. FIG. 6B is a perspective view of the receptacle-side tab portion 47 viewed from the other side.

  The receptacle-side tab portion 47 is formed by pressing a conductive metal such as Corson alloy, beryllium copper, phosphor bronze, etc., like the receptacle connector 14, and is integrally formed with the receptacle contact 41. (See FIG. 1).

  6A and 6B, the receptacle-side tab portion 47 includes a tab upper surface portion 471a positioned on the upper surface side of the receptacle connector 14 and tab side surface portions positioned on both side surfaces of the receptacle connector 14. 417b and 471c, and tab protrusions 471d that are located at both ends in the longitudinal direction X (see FIG. 1) and protrude from the tab upper surface part 471a at a substantially right angle.

  The receptacle-side tab portion 47 may be formed so as to be in contact with the plug-side tab portion 27. Further, the receptacle connector 14 and the plug connector 12 may be electrically connected by contacting the plug-side tab portion 27.

[4. Mold configuration]
Next, with reference to FIGS. 7-10, the metal mold | die 16 which forms the housing 45 by contact | abutting to the width expansion part 442 and filling with resin is demonstrated. FIG. 7 is a view for illustrating the configuration of the mold 16 according to the present embodiment, and FIG. 7A is a receptacle contact of a fixed mold member 611 that is one mold member constituting the mold 16. FIG. 7B is a perspective view showing a movable mold member 651 that is the other mold member constituting the mold 16. FIG. 8 is a perspective view showing the fixed mold member 611 of FIG. FIG. 9 is a perspective view for illustrating a state in which the movable mold member 651 according to the present embodiment has been moved to the mold clamping position with the fixed mold member 611. FIG. 9A is a diagram illustrating the movable mold member 651. FIG. 9B is a schematic cross-sectional view for illustrating a state in which the resin filling portion 656 of the movable mold member 651 is filled with resin. is there. FIG. 10 is a perspective view showing the relationship between the movable mold member 651 and the receptacle contact 41 in a state where the movable mold member 651 is moved to the clamping position with the fixed mold member 611.

  In the present embodiment, the expression of the movable mold member 651 and the fixed mold member 611 is used on the assumption that the mold 16 is a vertical molding machine. In other words, we expressed the terms “movable” and “fixed” by moving and not moving. In this case (vertical type), an ejector pin (not shown) is mounted on the fixed mold member 611 side. On the other hand, considering a horizontal molding machine, the movable and fixed are reversed, and an ejector pin is mounted on the movable mold member side. In the following description, a case of a vertical molding machine in which one mold member is a fixed mold member 611 and the other mold member is a movable mold member 651 will be described. May be a horizontal molding machine in which a movable mold member and the other mold member serve as a fixed mold member.

  7, 9, and 10 show the mold 16 that abuts on the width expansion portion 442 of some of the receptacle contacts 41 for convenience of illustration, the mold 16 is integrally formed with the housing 45. It is assumed that it has a shape capable of coming into contact with the width expansion portion 442 of all the receptacle contacts 41 to be made. That is, in FIG. 7, FIG. 9, and FIG. 10, a part of the receptacle contacts 41 and a part of the mold 16 are shown, and the other parts are omitted. 7, 9, and 10, what is held and arranged in the mold 16 is a portion corresponding to the receptacle contact 41 in the manufacturing process (a portion corresponding to the receptacle contact). Hereinafter, the receptacle contact 41 is referred to as a receptacle contact 41. explain.

  As shown in FIGS. 7 and 9, the mold 16 has a direction in which the fixed mold member (one mold member) 611 in which the receptacle contact 41 is disposed and the plug connector 12 are fitted (FIG. 9A). And a movable mold member (the other mold member) 651 that can be moved from the fitting direction B) in FIG. 9B to a mold clamping position with the fixed mold member 611.

  As shown in FIGS. 7A and 8, the fixed mold member 611 includes a fixed-side main body 612 fixed to a device side (not shown) for manufacturing the receptacle connector 14, and a receptacle-side connection portion 413. Is inserted into the fixed side first holding hole 613, the step portion 614 on which the lower surface of the holding portion 415 is placed, and the mold contact portion 615 that contacts the movable mold member 651 moved to the mold clamping position. Is formed. The step portion 614 separates the pair of width expanding portions 442 of the holding portion 415 from the facing surface of the fixed mold member 611 in a state where the holding portion 415 of the receptacle contact 41 is placed.

  As shown in FIG. 7B, the movable mold member 651 includes a movable main body 652 that is movable with respect to the fixed mold member 611, an elastic part insertion hole 653 in which the elastic part 414 can be inserted, and a fifth part. A bending portion insertion hole 654 into which the bending portion 419 can be inserted, a width expanding portion abutting portion 655 which is a portion of the movable mold member 651 and presses against a pair of width expanding portions 442, and resin filling in which resin is filled Part 656 (a space forming the shape of the housing 45).

  Then, as shown in FIGS. 9A and 9B, the fixed mold member 611 and the movable mold member 651 are in the clamping position (shown in FIGS. 9A and 9B). The housing 45 can be formed by filling the resin filling portion 656 with resin while sandwiching the receptacle contact 41 in the vertical direction (the fitting direction B and the direction opposite to the fitting direction B). doing. At this time, as shown in FIG. 10, the width expanding portion contact portion 655 of the movable mold member 651 contacts the width expanding portion 442 of the holding portion 415 of the receptacle contact 41.

[5. Receptacle Connector Manufacturing Method]
Next, a method for manufacturing the above-described receptacle connector 14 will be described. In the method of manufacturing the receptacle connector 14 according to the present embodiment, the first step of forming the receptacle contact 41 having a predetermined shape by deforming the plate-like member and the resin filling portion 656 of the mold 16 are filled with resin. Thus, at least the second step of forming the housing in which the receptacle contact 41 is integrally formed is performed. The first step of forming the plate-like member into a predetermined shape is a punching process in which a portion corresponding to the receptacle contact 41 is punched from the plate-like member, and a bending process in which the plate member is bent to form a portion corresponding to the receptacle contact 41. The receptacle contact 41 is formed by at least one of the processes.

  First, a receptacle connector equivalent part is formed by a metal strip that is a base material for forming the receptacle contact 41. More specifically, a receptacle connector equivalent part for forming the above-described receptacle contact 41 by deforming the metal band plate by sandwiching one end of each of the two metal band plates from above and below with a mold. Form (first step).

  Next, the receptacle connector equivalent parts respectively formed on the two metal strips are held on the fixed mold member 611 in a state in which the arrangement relationship facing each other is maintained. More specifically, a portion corresponding to the receptacle-side connection portion 413 is inserted into the fixed-side first holding hole 613, and a portion corresponding to the holding portion 415 is placed on the step portion 614 (see FIG. 7A). ).

  Next, the movable mold member 651 is moved to the mold clamping position (position shown in FIGS. 9A and 9B) with respect to the fixed mold member 611. When the movable mold member 651 is moved to the mold clamping position, a portion corresponding to the width expansion portion 442 is pressed against the width expansion portion contact portion 655. As described above, the receptacle contact 41 has a pair of width extending portions 442. For this reason, the portion corresponding to the pair of width extension portions 442 from the fitting direction B can be pressed by the width extension portion contact portion 655.

  In addition, when the movable mold member 651 is moved to the mold clamping position, the mold contact portion 615 contacts the movable side main body 652. A portion corresponding to the elastic portion 414 is inserted into the elastic portion insertion hole 653 of the movable mold member 651, and a portion corresponding to the fifth bending portion 419 is inserted into the bending portion insertion hole 654. Although not shown, the receptacle-side tab portion 47 is also held at both ends in the longitudinal direction X (see FIG. 1) by the mold 16.

  Next, the resin filling portion 656 is filled with resin in a state where the width expansion portion abutting portion 655 is pressed and abutted, whereby a portion corresponding to the receptacle contact 41 is integrally formed on the housing edge portions 46a and 46b. Is formed (second step). Specifically, in the portion corresponding to the holding portion 415 of the receptacle contact 41, the holding portion 415 is placed on the step portion 614 of the fixed mold member 611, and the width expanding portion 442 of the holding portion 415 and the fixed mold are placed. Since the gap g between the opposing surfaces of the member 611 (see FIG. 7A) is filled with resin, the width expanding portions 442 that are both ends in the width direction of the holding portion 415 are covered with the resin constituting the housing 45. Is called.

  When the resin filling portion 656 is filled with the resin, the receptacle-side tab portion 47 is integrally formed with the housing 45 at both ends in the longitudinal direction X (see FIG. 1) together with the portion corresponding to the receptacle contact 41.

  In addition, a holding hole 451 for holding the receptacle contact 41 is formed in the housing 45. The holding hole 451 allows elastic deformation in the width direction Y (see FIG. 1) of the housing 45 when the plug connector 12 and the receptacle connector 14 are fitted and the receptacle-side first contact portion 411 is elastically deformed. Can be formed.

  Further, the housing 45 is formed with receptacle-side fitting concave portions 452a and 452b, a receptacle-side fitting convex portion 453, and a tab insertion hole 454. The receptacle-side fitting recesses 452a and 452b are formed in a concave shape that is substantially the same as the concave shape formed by the receptacle-side first contact portion 411 and the receptacle-side second contact portion 412. Accordingly, the housing recesses 462a and 462b extending in the longitudinal direction X along the housing edges 46a and 46b by the receptacle-side fitting recesses 452a and 452b, the receptacle-side first contact portion 411, and the receptacle-side second contact portion 412. Is formed.

  Thereafter, the receptacle connector equivalent part is cut and separated from the metal band plate other than the receptacle connector equivalent part, so that the receptacle contacts 41 are held and arranged in the housing 45 by integral molding on the housing edges 46a and 46b. The connector 14 is manufactured.

[6. Mating between plug connector and receptacle connector]
Next, the fitting between the plug connector 12 and the receptacle connector 14 will be described. In addition, although the figure which shows the fitting state of the plug connector 12 and the receptacle connector 14 is abbreviate | omitted, the receptacle connector 14 mentioned above can be fitted with the plug connector 12 so that it may demonstrate below. In the plug connector 12 described above, the one-side board connecting portion 271 is soldered to the one-side board (not shown), and the receptacle connector 14 has tab side portions 471b and 471c and end portions of the tab protruding portion 471d. It is soldered to a substrate on the other side (not shown). The plug connector 12 and the receptacle connector 14 are fitted by fitting the plug connector 12 and the receptacle connector 14 from the fitting direction A or the fitting direction B (see FIG. 1).

  When the plug connector 12 and the receptacle connector 14 described above are fitted, the block edge portion 26a is inserted into the receptacle-side fitting recess 452a, the block edge portion 26b is inserted into the receptacle-side fitting recess 452b, and the receptacle-side fitting protrusion The part 453 is inserted into the block side fitting port 251.

  When the block edge portions 26a and 26b are inserted into the receptacle-side fitting recesses 452a and 452b, the plug contact 21 and the receptacle contact 41 come into contact with each other. More specifically, the distance between the receptacle-side first contact portion 411 and the receptacle-side second contact portion 412 increases as the receptacle-side first contact portion 411 is elastically deformed to increase the distance between the receptacle-side first contact portion 411 and the receptacle-side second contact portion 412. The plug-side bending portion 214 is inserted into the plug. The plug-side bending portion 214 is inserted to a contact position where the receptacle-side first contact portion 411 contacts the plug-side first contact portion 211 and the receptacle-side second contact portion 412 contacts the plug-side second contact portion 212. Is done. When the plug-side bending portion 214 is inserted to the contact position, the projecting portion 441 contacts the plug-side second contact portion 212, thereby preventing the plug contact 21 from coming off from the receptacle contact 41.

  Further, the tab insertion hole 454 may be formed so that it can be inserted into the plug-side tab portion 27. Further, the plug-side tab portion 27 and the receptacle-side tab portion 47 may be electrically connected by inserting the plug-side tab portion 27. Note that the plug-side tab portion 27 and the receptacle-side tab portion 47 may only be soldered to the other substrate without being electrically connected to the plug connector 12.

  As described above, the plug contact 21 and the receptacle contact 41 are brought into contact with each other by fitting the plug connector 12 and the receptacle connector 14, and the board on one side on which the plug connector 12 is mounted and the receptacle connector 14 are mounted. It becomes possible to electrically connect the substrate on the other side.

[7. Effect]
The manufacturing method of the receptacle connector 14 as described above includes a contact portion (receptacle side first contact portion 411, receptacle side second contact portion 412) that contacts the plug contact 21 of the plug connector 12, and a connecting portion ( A method of manufacturing a receptacle connector comprising: a plurality of receptacle contacts 41 having a receptacle-side connecting portion 413); and a housing 45 in which the receptacle contacts are held and arranged and into which the plug connector 12 is fitted. And a resilient part 414 that is erected from the connection part and curved at least once, a holding part 415 that is horizontally provided from the elastic part 414, and a contact part that extends from the holding part 415 The contact 41 includes a first step of forming a plate-like member into a predetermined shape, and a predetermined shape of the receptor. The curl contact 41 is disposed on one mold member constituting the mold 16 including one mold member (fixed mold member 611) and the other mold member (movable mold member 651). From the direction in which the plug connector 12 is fitted (fitting direction B) to the mold clamping position with one mold member, the pair of width extending portions 442 of the holding portion 415 projecting outward from both side edge positions. By filling the resin into the space (resin filling part 656) forming the housing shape in the mold in a state where the moved part (width expansion part contact part 655) of the other mold member is pressed and contacted. And a second step of forming a housing 45 in which the width expanding portion 442 of the holding portion 415 of the receptacle contact 41 is integrally formed.

  According to the manufacturing method of the receptacle connector 14 described above, the width expansion portion contact portion 655 of the movable mold member 651 moved from the fitting direction B is pressed against the pair of width expansion portions 442 of the receptacle contact 41. In this state, the resin filling portion 656 is filled with resin. For this reason, the trace (for example, the trace clamped from the width direction of the receptacle contact) at the time of holding the receptacle contact 41 with the metal mold 16 does not remain in the housing. In addition, since the resin is filled in the state where the width expansion portion abutting portion 655 is pressed and abutted to the pair of width expansion portions 442, the space is between the receptacle contact 41 and the housing 45 (between the holding portion 415 and the housing 45). Formation of a gap can be suppressed. For this reason, when the solvent for preventing the corrosion of the substrate is applied to the receptacle-side connecting portion 413, the applied solvent does not wet up to the receptacle-side first contact portion 411 or the receptacle-side second contact portion 412. Therefore, it is possible to provide a method of manufacturing the receptacle connector 14 that can improve the connection stability while suppressing deterioration in quality.

  Moreover, it is preferable that each width expansion part 442 is 0.03 mm or more and 0.12 mm or less in width dimension. If the width dimension W3 is smaller than 0.03 mm, when the resin filling portion 656 is filled with resin, the pair of width expansion portions 442 pressed against the width expansion portion contact portion 655 may be damaged, and the width dimension W3. If the thickness exceeds 0.12 mm, the receptacle connector 14 increases in size.

  Further, the receptacle-side second contact portion 412 is provided with a protruding portion 441 that protrudes toward the receptacle-side first contact portion 411. Therefore, when the plug-side curved portion 214 of the plug contact 21 is inserted between the receptacle-side first contact portion 411 and the receptacle-side second contact portion 412, the protruding portion 441 contacts the plug-side first contact portion 211. By contacting, the plug contact 21 can be prevented from coming off from the receptacle contact 41.

  In the receptacle connector 14 of the embodiment, both end portions in the width direction of the holding portion 415 of the receptacle contact 41 are covered with the housing 45 on the lower surface side facing the substrate when mounted. For this reason, in order to prevent corrosion of the substrate, when a solvent such as conformal coating is applied to the receptacle-side connection portion 413, the solvent applied to the receptacle-side connection portion 413 is changed to the receptacle-side first contact portion 411 and the receptacle-side. It is possible to prevent the connection failure between the substrates from occurring when the second contact portion 412 is wetted and the plug connector 12 is fitted. Therefore, according to the receptacle connector 14 of the embodiment, it is possible to improve connection stability while suppressing deterioration in quality.

DESCRIPTION OF SYMBOLS 1 Electrical connector 12 Plug connector 14 Receptacle connector 16 Mold 21 Plug contact 25 Block 41 Receptacle contact 45 Housing 46a, 46b Housing edge part 47 Receptacle side tab part 211 Plug side 1st contact part 212 Plug side 2nd contact part 213 Plug side Connection portion 251 Block side fitting port 411 Receptacle side first contact portion 412 Receptacle side second contact portion 413 Receptacle side connection portion 414 Elastic portion 415 Holding portion 416 Third bending portion 417 Fourth bending portion 418 Second standing portion 419 First 5 bending portion 431 first bending portion 432 first standing portion 433 second bending portion 441 projecting portion 442 width expanding portion 452a receptacle side fitting recess 452b receptacle side fitting recess 453 receptacle side fitting protrusion 454 Insertion hole 611 Fixed mold member 612 Fixed side main body 613 Fixed side first holding hole 614 Step part 615 Mold contact part 651 Movable mold member 652 Movable side main body 653 Elastic part insertion hole 654 Bending part insertion hole 655 Width expansion part Contact part 656 Resin filling part

Claims (7)

A receptacle connector comprising: a plurality of receptacle contacts each having a contact portion that contacts a plug contact of the plug connector; and a connection portion that is mounted on a substrate; and a housing in which the receptacle contact is held and arranged and into which the plug connector is fitted. Because
The receptacle contact has an elastic part standing from the connection part, and a holding part horizontally provided in a flat shape from the elastic part,
Both ends of the holding portion in the width direction are covered with the housing on the lower surface facing the substrate during mounting.   2. The receptacle connector according to claim 1, wherein both end portions in the width direction of the holding portion are a pair of width extending portions projecting outward from both side edge positions of the contact portion.   3. The receptacle connector according to claim 1, wherein the widthwise end portions of the holding portion each have a width dimension of 0.03 mm or more and 0.12 mm or less. A plurality of receptacle contacts having a contact portion that contacts the plug contact of the plug connector and a connection portion that is mounted on the substrate;
A receptacle connector manufacturing method comprising: a housing in which the receptacle contacts are held and arranged, and the plug connector is fitted therein;
From the plate-like member, the connecting portion, an elastic portion standing from the connecting portion and curved at least once, a holding portion horizontally provided in a flat shape from the elastic portion, and extending from the holding portion A first step of forming the receptacle contact in a predetermined shape having the contact portion;
The receptacle contact of the predetermined shape is disposed on the one mold member of the molds composed of one mold member and the other mold member, and protrudes outward from both side edge positions of the contact portion. The pair of width-expanded portions of the holding portion are pressed and abutted at the portion of the other mold member moved from the direction in which the plug connector is fitted to the mold clamping position with the one mold member. At least a second step of forming the housing in which a width-expanding portion of the holding portion of the receptacle contact is integrally formed by filling resin in a space forming the housing shape in the mold in the state A method of manufacturing a receptacle connector, comprising:   The method of manufacturing a receptacle connector according to claim 4, wherein each of the width extension portions has a width dimension of 0.03 mm to 0.12 mm.   The one mold member is formed on a surface facing the holding portion, a portion between the pair of width extending portions of the holding portion is placed, and the pair of width expanding portions are separated from the facing surface. 6. The method of manufacturing a receptacle connector according to claim 4, further comprising a stepped portion.   In the second step, the resin is filled between the pair of width-expanded portions of the holding portion separated by the stepped portion and the opposing surface of the one mold member, whereby the pair of widths The method of manufacturing a receptacle connector according to claim 6, wherein the extended portion is covered with the housing on a lower surface side facing the substrate during mounting.