WO2023281757A1

WO2023281757A1 - Receptacle connector and method for producing same

Info

Publication number: WO2023281757A1
Application number: PCT/JP2021/026042
Authority: WO
Inventors: 康行工藤
Original assignee: 山一電機株式会社
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2023-01-12

Abstract

This receptacle connector (2) has an insulator (21) and a female contact group (22) in which a plurality of female contacts (23) are arranged on the insulator (21) in a direction (D2) which is orthogonal to a direction (D1) in which a plug connector (1) and the receptacle connector (2) are attached and detached. The female contacts (23) have an arm pair (24') for sandwiching a male contact (13) of the plug connector (1), and also have a connecting part (25) to which an electrical wire is electrically connected. The female contacts (23) are assembled so as to electrically connect separate, independent metal members (31, 32). The metal members (31, 32) are assembled in a manner such that the female contacts (23) have the arm pair (24') and the connecting part (25).

Description

Receptacle connector and its manufacturing method

The present invention relates to a receptacle connector and its manufacturing method.

Patent Document 1 discloses a power supply connector device consisting of a plug and a receptacle, and in particular, discloses providing cleaning terminals in addition to main contact terminals, as shown in FIG.

WO2018/173624

FIG. 13 of the present application shows the female contact terminal shown in FIG. 2(C) of Patent Document 1. As shown in FIGS. 13(a) and 13(b), the female contact 23' is constructed by bending a single metal plate at a plurality of points. In this case, it is not easy to form the predetermined clearance G1 in the arm pair 241 for sandwiching the male contact of the plug connector with high reproducibility. The same is true for By setting the clearance G1 of the arm pair 241 with high accuracy, the force required for connecting and disconnecting the plug connector and the receptacle connector can be kept within the target range. If the force required for attachment and detachment is too large, an unnecessarily large force will be applied to the connector and connection wiring when attaching and detaching the plug and receptacle. If too little force is required for mating and unmating, there is a high risk that the electrical continuity between the plug and receptacle will be interrupted upon impact.

In view of the non-limiting exemplary problems described above, the inventors of the present application have developed a new problem of providing a receptacle connector that prevents variations in the predetermined clearance that the arm pair should have, or promotes easy fine adjustment thereof. Found it.

A receptacle connector according to one aspect of the present disclosure is a receptacle connector detachably connected to a plug connector,
an insulator;
a female contact group in which a plurality of female contacts are arranged in the insulator along a direction perpendicular to the attaching/detaching directions of the plug connector and the receptacle connector;
The female contact has a pair of arms that sandwich the male contact of the plug connector, and a connecting portion to which an electric wire is to be electrically connected,
The female contact is configured in combination to electrically connect at least two separate and independent metal members, and the at least two metal members are configured such that the female contact has the arm pair and the connecting portion. combined with

In some embodiments, the insulator includes a plurality of primary injection molded parts to which the at least two metal members are fixed in each primary injection molded part, and a secondary injection molded part to which the plurality of primary injection molded parts are fixed. It has a molded part.

In some embodiments, the primary injection molded part has a plurality of exposed surfaces exposed from the secondary injection molded part. The plurality of exposed surfaces may be spaced apart on a predetermined wall surface of the secondary injection molded part.

In some embodiments, a part of the secondary injection-molded portion is provided between the primary injection-molded portions adjacent in the arrangement direction of the plurality of female contacts.

In some embodiments, the at least two separate and independent metal members include a first metal member and a second metal member, and the first metal member and the second metal member constitute the pair of arms. comprising a first arm portion and a second arm portion arranged oppositely, the first arm portion and the second arm portion being shaped to define a predetermined clearance near their free ends; The predetermined clearance sets the force required to attach and detach the plug connector and the receptacle connector.

Each of the plurality of primary injection molded parts may be provided for each female contact of the plurality of female contacts.

A method of manufacturing a receptacle connector according to another aspect of the present disclosure includes a pair of arms configured to sandwich a male contact of a plug connector, and a plurality of female contacts having connecting portions to which electric wires are to be electrically connected. A method of manufacturing a receptacle connector provided with a group of female contacts including: forming each female contact by combining at least two metal members; a step of fixing the at least two metal members to a primary injection molded portion of each primary injection molded product; and a step of secondary injection molding the plurality of primary injection molded products. and fixing the primary injection molded parts of the plurality of primary injection molded products to the secondary injection molded part of the insulator in the step of forming the insulator provided with the female contact group. A primary injection molding may be performed for each female contact in a first mold. Secondary injection molding may be performed on a plurality of primary injection molded articles in a second mold.

According to one aspect of the present disclosure, it is possible to provide a receptacle connector that prevents variation in the predetermined clearance that the arm pair should have, or promotes easy fine adjustment thereof.

1(a) is a schematic side view of a coupling of a plug connector and a receptacle connector according to one aspect of the present disclosure; FIG. FIG. 1(b) is a schematic diagram showing a connected state of a plug connector and a receptacle connector according to one aspect of the present disclosure. 1 is a schematic perspective view of a receptacle connector according to one aspect of the present disclosure; FIG. 3 is a schematic perspective view of a receptacle connector according to one aspect of the present disclosure, showing the opposite side of FIG. 2; FIG. 1 is a schematic top view of a receptacle connector according to one aspect of the present disclosure; FIG. 1 is a schematic bottom view of a receptacle connector according to one aspect of the present disclosure; FIG. FIG. 6(a) is a schematic top view of a receptacle connector with signal lines and power lines attached. FIG. 6(b) is a schematic bottom view of a receptacle connector with signal lines and power lines attached. FIG. 7(a) is a schematic perspective view of a male contact. FIG. 7(b) is a schematic side view of a male contact. FIG. 8(a) is a schematic perspective view of a female contact constructed from a combination of first and second metal members. FIG. 8(b) is a top view thereof. FIG. 8(c) is a side view thereof. FIG. 9(a) is a schematic perspective view of a female contact constructed from a combination of first and second metal members. FIG. 9(b) is a top view thereof. FIG. 9(c) is a side view thereof. FIG. 4 is a schematic perspective view showing a female contact for power transmission and a primary injection molded part; FIG. 4 is a schematic cross-sectional view showing a form in which the plug connector contacts a lock portion provided on an insulator of the receptacle connector when the plug connector and the receptacle connector are coupled; 4 is a schematic flow chart showing the manufacturing process of the receptacle connector; 1A and 1B are a schematic perspective view and a top view of a female contact disclosed in Patent Document 1; FIG.

Various embodiments and features according to the present disclosure are described below with reference to FIGS. A person skilled in the art can combine each embodiment and/or each feature without undue explanation, and can also understand the synergistic effect of this combination. Redundant explanations among the embodiments will be omitted in principle. The referenced drawings are primarily for the purpose of describing the invention and are simplified for drawing convenience. Each feature is valid not only for the connector and manufacturing method thereof disclosed herein, but is a universal feature applicable to various other connectors and manufacturing methods thereof not disclosed herein. be understood as

A plug connector 1 and a receptacle connector 2 according to a non-limiting example of the present disclosure are shown in FIG. 1(a). The plug connector 1 and the receptacle connector 2 can be attached/detached in the attachment/detachment direction D1. In this specification, in the attachment/detachment direction shown in FIG. 1(a), the direction from the receptacle connector 2 to the plug connector 1 is defined as upward, and the direction from the plug connector 1 to the receptacle connector 2 is defined as downward. The plug connector 1 and receptacle connector 2 are a type of battery connector.

The plug connector 1 has an insulator 11 and a male contact group 12. In the male contact group 12, a plurality of male contacts 13 are arranged on the insulator 11 along the width direction D2 perpendicular to the attaching/detaching direction D1.

The receptacle connector 2 has an insulator 21 and a female contact group 22 . In the female contact group 22, a plurality of female contacts 23 are arranged on the insulator 21 along the width direction D2 perpendicular to the attaching/detaching direction D1.

Each

contact

13, 23 is partially embedded in the

insulator

11, 21 and fixed to the

insulator

11, 21, but should not be limited to this aspect. The

contacts

13 , 23 may be inserted into the

insulators

11 , 21 and fixed to the

insulators

11 , 21 . The

insulators

11, 21 are made of an insulating material such as resin.

Contacts

13 and 23 are made of metal such as brass, phosphor bronze, or pure copper.

The plug connector 1 is provided with

power transmission contacts

13a and 13g and

signal transmission contacts

13b, 13c, 13d, 13e and 13f. The receptacle connector 2 is provided with

power transmission contacts

23a and 23g and

signal transmission contacts

23b, 23c, 23d, 23e and 23f.

One of the plug connector 1 and the receptacle connector 2 is connected to the battery (power supply side), and the other is connected to the module (power receiving side). When the receptacle connector 2 is connected to a battery, the

power transmission contacts

23a and 23g of the receptacle connector 2 are individually connected to the positive and negative terminals of the battery.

A load (for example, a power supply module) to be supplied with power from the battery connected to the receptacle connector 2 is connected to the

power transmission contacts

13 a and 13 g of the plug connector 1 . Similarly, the signal terminals of the battery are individually connected to the

signal transmission contacts

23b, 23c, 23d, 23e, and 23f of the receptacle connector 2. FIG.

The

signal transmission contacts

13b, 13c, 13d, 13e, and 13f of the plug connector 1 are connected to a load (for example, a signal processing module) to receive the output signal from the battery connected to the receptacle connector 2. The transmitted signals may carry information relating to battery status and control, or may carry information independent of the battery.

The male contact 13 has a first connection portion 14 and a second connection portion 15 . Similarly, the female contact 23 has a first connection portion 24 and a second connection portion 25 . The first connecting portion 14 of the male contact 13 is a flat plate extending in the attachment/detachment direction D1, and has a tapered tip. The second connection portion 15 of the male contact 13 is a flat plate extending in a direction D3 (hereinafter referred to as a connection direction) orthogonal to the attachment/detachment direction D1 and the width direction D2.

The male contact 13 includes a main flat plate portion 16 and an L-shaped portion 17 (see FIG. 7). The main flat plate portion 16 extends in the attachment/detachment direction D1. A first connecting portion 14 is provided at one end of the main flat plate portion 16 . An L-shaped portion 17 is connected to the other end of the main flat plate portion 16 . The L-shaped portion 17 has a short portion 18 extending in the same direction as the main flat plate portion 16 and a long portion 19 extending in a different direction (connection direction D3) from the main flat plate portion 16 . The short portion 18 is coupled to the corner portion of the main flat plate portion 16 so that the short portion 18 protrudes from the main flat plate portion 16 . Long portion 19 has a first end coupled to short portion 18 and a second end opposite the first end. A second connecting portion 15 is provided at the second end of the elongated portion 19 .

The first connecting portion 24 of the female contact 23 is a pair of arms configured to sandwich the first connecting portion 14 of the male contact 13 . The arm pair extends from the insulator 21 in the attachment/detachment direction D1.

A wire is electrically connected to the second connection portion 15 of the male contact 13 . Similarly, a wire is electrically connected to the second connection portion 25 of the female contact 23 . An electric wire is any conductor that conducts electricity, and examples thereof include an insulated wire in which a metal core wire is covered with an insulating coating, or various types of cables. Generally, the diameter of the cable is larger than the diameter of the insulated wire.

The first connecting portions 24a to 24g of the female contacts 23a to 23g are provided on the side of the insulator 21 facing the plug connector 1. The first connecting portions 24a to 24g are arranged at a predetermined pitch along the width direction D2. Each of the first connecting portions 24a to 24g is composed of an arm pair 24'. The arm pair 24' extends in the attachment/detachment direction D1.

The second connection portions 25b-25f of the female contacts 23b-23f are arranged at a predetermined pitch in the width direction D2. The

second connection portions

25a, 25g of the

power transmission contacts

23a, 23g are laminated flat plate portions extending along the width direction D2. The second connection portions 25b to 25f of the signal transmission contacts 23b to 23f are laminated flat plate portions extending along the connection direction D3 perpendicular to the attachment/detachment direction D1 and the width direction D2.

The

second connection portions

25a and 25g of the

power transmission contacts

23a and 23g are provided on both sides of the second connection portions 25b to 25f of the signal transmission contacts 23b to 23f. The second connection portion 25a and the second connection portion 25b are adjacent in the width direction D2. The second connection portion 25g and the second connection portion 25f are adjacent in the width direction D2.

One ends of the

power transmission cables

9a and 9g are screwed to the second connecting

portions

25a and 25g of the

power transmission contacts

23a and 23g, and one ends of the signal wires 9b to 9f are connected to the signal transmission contacts 23b to 23f. connected with The other ends of the

power transmission cables

9a and 9g are screwed to the power terminals of the battery. The other ends of the signal wires 9b-9f are connected to the signal terminals of the battery.

The second connecting portions 25a to 25g of the contacts 23a to 23g are portions to which electric wires are electrically connected along the connection direction D3, and each electric wire is electrically connected to the second connecting portions 25a to 25g. After that, it extends along the connection direction D3. Signal lines and power lines are led out in the same direction from the contacts 23a to 23g, and the signal lines and power lines can be bundled. In particular, the

power transmission cables

9a and 9g electrically connected to the

second connection portions

25a and 25g of the

power transmission contacts

23a and 23g do not overlap the through

holes

28 and 29 provided in the

insulators

11 and 21. . This is because the through

holes

28 and 29 are offset from the

power transmission cables

9a and 9g in the width direction D2. Accordingly, the

power transmission cables

9a and 9g electrically connected to the

power transmission contacts

23a and 23g do not prevent the receptacle connector 2 from being attached to the predetermined position.

The through holes 28 and 29 are provided offset in the connection direction D3 from the body portion 21m of the insulator 21 in which the female contact group 22 is provided. be done. The through holes 28, 29 pass through the

tabs

88, 89 in the attaching/detaching direction D1. The

tabs

88, 89 and a rod receiving hole 51g, which will be described later, are provided on the same axis extending in the connection direction D3.

Other tabs

86, 87 extending obliquely forming an acute angle with respect to the axis extending in the width direction D2 are also coupled to the body portion 21m of the insulator 21, and through

holes

26, 27 are provided therein. The features mentioned for receptacle connector 2 also apply to plug connector 1 .

The receptacle connector 2 can be used with a sealing member. When the insulator 21 is fixed to another member with fasteners (for example, bolts) through the through

holes

26, 27, 28, 29, the seal member is deformed. An O-ring can be exemplified as the sealing member, but it is not limited to this. Sealing members may be provided to enhance watertightness or airtightness. The place where the sealing member is provided is, for example, between the receptacle connector 2 and another member to which it is attached.

As shown in FIG. 8, the signal transmission contacts 23b to 23f are configured by combining two separate and independent metal members 31 and 32 (referred to as first and second metal members 31 and 32). The first and

second metal members

31, 32 are combined such that the female contact 23 has a pair of arms 24' (as first connection portion 24) and a connection portion 25 (as second connection portion 25). . The first metal member 31 includes a first arm portion 311 extending in the attachment/detachment direction D1, a first flat plate portion 312 extending in the connection direction D3, and a first connecting portion 313 connecting the first arm portion 311 and the first flat plate portion 312. have. Similarly, the second metal member 32 includes a second arm portion 321 extending in the attachment/detachment direction D1, a second flat plate portion 322 extending in the connection direction D3, and a second connecting portion connecting the second arm portion 321 and the second flat plate portion 322. 323.

The first arm portion 311 and the second arm portion 321 are arranged to face each other to form the first connection portion 24, particularly the arm pair 24'. A space for inserting the male contact 13 of the plug connector 1 is defined between the first arm portion 311 and the second arm portion 321 . The first arm portion 311 and the second arm portion 321 are shaped to define a predetermined clearance G1 near their free ends. The connecting portion 25 is configured by stacking the first flat plate portion 312 and the second flat plate portion 322 .

The first arm portion 311 and the second arm portion 321 are composed of proximal

inclined portions

314 and 324 that approach each other as they separate from the insulator 21 in the attachment/detachment direction D1, and It has

distal ramps

315, 325 spaced apart from each other. The first arm portion 311 has a bend 316 bent between a proximal ramp 314 and a distal ramp 315 . Similarly, the second arm portion 321 has a bend 326 bent between a proximal ramp 324 and a distal ramp 325 . Bend 316 has an arcuate surface facing flexure 326 . Similarly, bend 326 has an arcuate surface facing bend 316 .

By setting the clearance G1 between the

bent portions

316 and 326 within a predetermined value or within a predetermined range, the force required for connecting and disconnecting the plug connector 1 and the receptacle connector 2 can be within the target range. Each of the

arm portions

311 and 321 is formed with a groove 36 that extends in parallel from the arm tip toward the arm base end side in order to enhance flexibility thereof. The

arm portions

311 and 321 are plated to the extent necessary to ensure good electrical connection with the male contact 13 .

A single female contact 23 is composed of two separate and

independent metal members

31 and 32 . Therefore, even if the above clearance G1 is out of the allowable range, the clearance G1 can be brought within the target range by adjusting the distance between the

arm portions

311 and 321 . The same is true after embedding the

metal members

31 and 32 in the insulator 21 . In the female contact 23' of the conventional example shown in FIG. Therefore, it is not easy to adjust the spacing between the arm portions 311' and 321'.

It is advantageous to couple the two separate and

independent metal members

31, 32 by an appropriate method such as gluing, mechanical fitting, etc., to prevent their relative displacement. This improves the manufacturing efficiency or prevents the above-described variation in the clearance G1. 9 and 10, two

metal members

31 and 32 are partially embedded and fixed in the primary injection molded portion 21a by insert molding. In addition to the configuration in which one female contact 23 is fixed to one primary injection molded portion 21a, a configuration in which a plurality of female contacts 23 are fixed to one primary injection molded portion 21a is also conceivable. By insert molding, the primary injection molded portion 21a is fixed to the secondary injection molded portion 21b (see FIG. 1(b)). The primary injection molded part 21a and the secondary injection molded part 21b are made of the same or different materials and have the same or different colors.

As shown in FIG. 10, the

power transmission contacts

23a, 23g of the receptacle connector 2 are composed of a combination of two

separate metal members

31, 32, similar to the signal transmission contacts 23b-23f. A different point from the signal transmission contacts 23b to 23f is that the connection portions 25 of the

power transmission contacts

23a and 23g extend along the width direction D2 instead of the connection direction D3.

For both the signal transmission contacts 23b to 23f and the

power transmission contacts

23a and 23g, the primary injection molded portion 21a is a space defined by the facing arrangement of the

metal members

31 and 32, namely, the

arm portions

311 and 321. It fills the space defined by the facing arrangement of the proximal end portions and prevents the distance variation between the

metal members

31 and 32 . The primary injection-molded part 21a has one or more exposed surfaces exposed from the secondary injection-molded part 21b (see FIGS. 2 and 3), so that the primary injection-molded part 21a on the mold during the secondary injection molding Positioning of the portion 21a can be performed. The volume and amount of resin of the secondary injection molded portion 21b can be reduced. A plurality of exposed surfaces can be arranged at intervals along the width direction D2 on a predetermined wall surface of the secondary injection molded portion 21b (for example, the wall surface on the side opposite to the connecting portion 25). It can be ensured that the resin of the secondary injection-molded portion 21b is interposed between the adjacent primary injection-molded portions 21a, and the primary injection-molded portion 21a is firmly fixed in the secondary injection-molded portion 21b.

A cover 40 is attached to the insulator 21 of the receptacle connector 2 . The cover 40 is provided with a receptacle 41 that allows the insertion of the first connecting portion 14 of the male contact 13 of the plug connector 1 toward the arm pair 24' of the female contact 23. As shown in FIG. The receptacle 41 is provided corresponding to the female contact 23 and opens above the female contact 23 . The receptacle 41 extends in the connection direction D3 to reach the outer circumference of the cover 40, and makes the cover 40 comb-shaped.

In some forms, the insulator 21 is provided with a lock portion 71 that prevents the cover 40 from being detached from the insulator 21 in the attaching/detaching direction D1. and the plug connector 1 are brought into contact. This prevents the cover 40 from coming off the insulator 21 . The lock portion 71 can be formed by inserting the lock projection of the insulator 21 into the through-hole of the cover 40 and plastically deforming the top portion of the lock projection. The lock portion 71 has a shaft portion 71a extending in the attachment/detachment direction D1 and a head portion 71b coupled to the shaft portion 71a. The head portion 71b includes a portion protruding radially outward from the shaft portion 71a. A bolt or screw can also be used as the locking part.

An alignment rod 51 is provided on one of the plug connector 1 and the receptacle connector 2, and a rod receiving hole 51g for receiving the alignment rod 51 is provided on the other. As shown in FIG. 11, the alignment rod 51 is fixed to the wall portion 11g of the plug connector 1, and the receptacle connector 2 is provided with a rod receiving hole 51g. The rod receiving holes 51g are provided on both sides of the female contact group 22 in the width direction D2. By inserting the alignment rod 51 into the rod receiving hole 51g, the male contact 13 and the female contact 23 are arranged on the same axis in the attaching/detaching direction D1. Male contact 13 passes through receptacle 41 of cover 40 and is sandwiched by arm pair 24' of female contact 23. As shown in FIG.

When the plug connector 1 and the receptacle connector 2 are connected, the upper surface of the lock portion 71 of the insulator 21 and the lower surface of the wall portion 11g of the plug connector 1 come into contact. Thereby, the lock portion 71 is reinforced by the wall portion 11g. It is avoided or suppressed that the cover 40 is removed from the insulator 21 and the female contacts 23, especially the charging portions of the

power transmission contacts

23a and 23g are exposed.

Finally, a method for manufacturing the receptacle connector 2 will be described with reference to FIG. First, two metal members are combined to form a contact (S1). For example, two metal members are placed on a stationary mold for injection molding. The fixed die has a support portion that supports the metal member, and the metal member is positioned on the fixed die. Next, the contact is subjected to primary injection molding to obtain a primary injection molded product (S2). For example, after laminating and pressurizing a fixed mold and a movable mold, molten resin is supplied to this mold apparatus. A primary injection-molded product in which the two metal members are partially embedded and fixed in the primary injection-molded portion is obtained by cooling the mold apparatus. In addition, it is not limited to the form in which one primary injection-molded product has one contact, and a form in which one primary injection-molded product has a plurality of contacts is also conceivable. Next, one or a plurality of primary injection molded products are subjected to secondary injection molding to form an insulator provided with a contact group (S3). For example, a primary injection molded article is placed on a stationary mold. The fixed mold has a support for supporting the primary injection molded product, and the primary injection molded product is positioned on the fixed mold. Next, secondary injection molding is performed on the primary injection molded product to obtain a secondary injection molded product in which the primary injection molded product is partially or wholly embedded in the secondary injection molded part. Needless to say, the mold apparatus used for primary injection molding and the mold apparatus used for secondary injection molding are not the same. The mold cavity structure, resin material, injection conditions, resin material, etc. are appropriately determined by those skilled in the art.

Based on the above teachings, a person skilled in the art can make various modifications to each embodiment and each feature.

1 plug connector 2 receptacle connector 11 insulator 12 male contact group 13 male contact 21 insulator 22 female contact group 23 female contact 28 through hole 29 through hole 31 metal member 32 metal member 40 cover 71 lock portion

Claims

A receptacle connector detachably connected to a plug connector,
an insulator;
a female contact group in which a plurality of female contacts are arranged in the insulator along a direction perpendicular to the attaching/detaching directions of the plug connector and the receptacle connector;
The female contact has a pair of arms that sandwich the male contact of the plug connector, and a connecting portion to which an electric wire is to be electrically connected,
The female contact is configured in combination to electrically connect at least two separate and independent metal members, and the at least two metal members are configured such that the female contact has the arm pair and the connecting portion. A receptacle connector that is combined with a
The insulator includes a plurality of primary injection-molded parts to which the at least two metal members are fixed in each primary injection-molded part, and a secondary injection-molded part to which the plurality of primary injection-molded parts are fixed. The receptacle connector of Claim 1.
The receptacle connector according to claim 2, wherein the primary injection molded portion has a plurality of exposed surfaces exposed from the secondary injection molded portion.
The receptacle connector according to claim 3, wherein the plurality of exposed surfaces are arranged at intervals on a predetermined wall surface of the secondary injection molded portion.
5. The secondary injection molded portion according to any one of claims 2 to 4, wherein a portion of the secondary injection molded portion is provided between the primary injection molded portions adjacent in the arrangement direction of the plurality of female contacts. receptacle connector.
6. The receptacle connector according to claim 2, wherein each of said plurality of primary injection molded parts is provided for each female contact of said plurality of female contacts. .
The at least two separate and independent metal members include a first metal member and a second metal member, and the first metal member and the second metal member are first metal members disposed facing each other to form the pair of arms. comprising an arm portion and a second arm portion, the first arm portion and the second arm portion being shaped to define a predetermined clearance near their free ends;
7. The receptacle connector according to any one of claims 1 to 6, wherein the predetermined clearance sets a force required for connecting and disconnecting the plug connector and the receptacle connector.
A method for manufacturing a receptacle connector provided with a female contact group including a plurality of female contacts provided with a pair of arms configured to sandwich a male contact of a plug connector and a connecting portion to which an electric wire is to be electrically connected. and
assembling at least two metal members to form each female contact;
obtaining a plurality of primary injection-molded products by performing primary injection molding on each female contact, wherein the at least two metal members are fixed to the primary injection-molded portion of each primary injection-molded product;
A step of performing secondary injection molding on the plurality of primary injection-molded products to form an insulator provided with the female contact group, wherein the secondary injection-molded portion of the insulator includes the plurality of primary injection-molded A method of manufacturing a receptacle connector comprising the step of securing a primary injection molded part of the article.
The method of manufacturing a receptacle connector according to claim 8, wherein the primary injection molded part has a plurality of exposed surfaces exposed from the secondary injection molded part.
The method of manufacturing a receptacle connector according to claim 9, wherein the plurality of exposed surfaces are arranged at intervals on a predetermined wall surface of the secondary injection molded portion.
11. The secondary injection molded portion according to claim 8, wherein a portion of the secondary injection molded portion is provided between the primary injection molded portions adjacent in the arrangement direction of the plurality of female contacts. manufacturing method of receptacle connector.
12. Manufacture of a receptacle connector according to any one of claims 8 to 11, characterized in that each female contact of the plurality of female contacts is provided in each primary injection molding of the plurality of primary injection moldings. Method.