JP2015215974A - Female connector and manufacturing method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a female connector which can be smaller and thinner, can improve coplanarity, and can suppress generation of defective articles as much as possible.SOLUTION: In a female connector having a plurality of female connector elements, each of the female connector elements comprises: a first housing element which composes a male connector pin housing part having a pin insertion port opening in the same direction as an adjacent female connector element; an end part electrically connected to a male connector pin end part; a female connector pin provided with an intermediate fixing part that fixes the end part in the male connector pin housing part of the first housing element elastically and a rear end part connected to an electric circuit; and a second housing element which is provided in the way it is joined to the first housing element to compose one housing element together with the first housing element and embeds and fixes the intermediate fixing part.

Description

  The present invention provides a female connector for embedding and fixing a female connector element that is not a movable region in the housing while holding the movable region of the female connector element in the housing, instead of press-fitting the female connector elements one by one into a predetermined portion of the housing. The present invention relates to a method for manufacturing the female connector.

  There are two types of connectors: a male connector with terminals protruding out of the housing, and a female connector that receives the terminals of the male connector. The female connector includes a housing into which the male connector can be fitted, and a large number of female connector pins that are in electrical contact with the male connector pins of the male connector. The female connector pins are manufactured by press-fitting one by one into a predetermined portion of the resin housing (see, for example, Patent Document 1).

  FIG. 9 is an exploded perspective view showing a configuration of an embodiment of a conventional female connector. FIG. 10 is an explanatory view showing the configuration of the female connector pins used in the female connector of FIG. 9, wherein a is a perspective view, b is a side view, and c is a front view. FIG. 11 is a cross-sectional view showing a manufacturing process of the female connector of FIG. 9, wherein FIG. 11A shows a state before the female connector pin is attached to the first housing portion, and FIG. 11B shows a state after the attachment.

  As shown in FIG. 9, the conventional female connector 90 includes a resin female connector housing 91 and a plurality of female connector pins 92. The substantially rectangular female connector housing 91 has an annular wall portion 93 formed around it, and an island portion 94 projecting in the surface direction at the center portion. The annular wall portion 93 includes a pair of long side wall portions 93a and a pair of short side short wall portions 93b. Although not shown in FIG. 9, a penetrating long groove 94 a is formed along the longitudinal direction between the long wall portion 93 a and the island portion 94 opposed thereto.

  30 through 2 rows of through short grooves 95 into which the female connector pins 92 can be inserted from the back side are formed so as to be orthogonal to the through long grooves 94a. The through short groove 95 is formed from the inner wall surface of the long wall portion 93a to the outer wall portion of the island portion 94 that is opposed. Specifically, the long wall portion 93a has a press-fit groove 95a penetrating vertically through the long wall portion 93a to which the female connector pin 92 is fixedly attached, and an upper surface when the female connector pin 92 is attached from the lower surface. An insertion groove 95b formed so as to be pulled out is formed, and a loosely fitting groove 95c in which the tip end portion of the female connector pin 92 is loosely fitted is formed on the outer wall portion in the longitudinal direction of the island portion 94 opposed thereto. Is formed.

  As shown in FIG. 10, the female connector pin 92 attached in FIG. 9 is a metal strip-shaped conductive member having a predetermined thickness, and is bent at predetermined six locations in the longitudinal direction. The first bent portion 92a at the front end in the longitudinal direction of the female connector pin 92 is bent in an inverted U shape, and the second bent portion 92b is bent at an acute angle toward the rear end, and is connected to the electric circuit. The same plane as the part is configured. Subsequently, the third bent portion 92c is bent at a right angle to form a rising portion, and the fourth bent portion 92d is bent at a right angle to form a horizontal portion.

  The fifth bent portion 92e is bent at a right angle to form a falling portion. At the falling portion, a claw portion 92g having a shoulder portion that becomes a handle of the press-fitting device at the lower end is projected on both sides, and is press-fitted and fixed in the press-fitting groove 95a of the female connector housing 91. Subsequently, the sixth bent portion 92f is bent at a right angle to form a rear end portion 92h connected to a horizontal electric circuit.

  As shown in FIG. 11, the female connector pins 92 are mounted one by one from below the female connector housing 91. As one female connector element, there is one female connector pin 92 and a housing element for distinguishing this female connector pin 92 from the adjacent female connector pins. As specific housing elements, both wall portions of the press-fitting groove 95a to be fixed, both wall portions of the insertion groove 95b for distinguishing from the adjacent female connector element, and the front end portion of the female connector pin 92 are loosely fitted. These are the both wall portions and the abutting wall portion of the loose fitting groove 95c. The female connector pins 92 are inserted into one housing element of the female connector housing 91 one by one.

  The claw portion 92g of the female connector pin 92 is press-fitted and fixed to the press-fitting groove 95a of the long wall portion 93a of the above-described claw portion 92g of the through-short groove 95 of the female connector housing 91. That is, the female connector pins 92 are press-fitted into the groove 95 of the female connector housing 91 one by one from the bottom surface side. Since the female connector pin 92 has a claw portion 92g projecting in both directions and a shoulder portion formed horizontally at the lower end, the shoulder portion is used as a handle and a press-fitting device such as a robot arm is used. Each one is press-fitted into the press-fitting groove 95a and fixed.

JP 2012-99276 A

  Since the female connector pins 92 are press-fitted and fixed to the female connector housing 91 one by one, warping is likely to occur. In such a connector, in order to increase coplanarity (flatness, in particular, terminal alignment of the soldered portion with respect to the board), the size of each press-fit groove 95a of the housing 91 is formed with high accuracy. The resin density of the side wall portion of the press-fitting groove 95a into which the claw portion 92g is mechanically press-fitted must be uniform with no gap in all of the press-fitting grooves 95a.

  For example, as in the case of the female connector shown in FIG. 9, if one of the 30 press-fit grooves 95a is press-fitted to a height different from that of the other female connector pins 92, the female connector The connector will be defective. That is, in the process of press-fitting the female connector pin into the housing as many as 60 times, if there is a gap in the fixed part of the both side walls of one press-fit groove 95a, the coplanarity is poor, unlike the other press-fit operations. Become.

  In addition, when the female connector pins 92 are press-fitted and fixed to the female connector housing 91 one by one, the pitch length of the adjacent pins 92 is limited, specifically 0.3 to 0.4 mm. It is said that the degree is minimal. If the width of the claw portion 92g of the adjacent female connector pin 92 and the interval between adjacent press-fit grooves 95a are smaller than about 0.3 to 0.4 mm, both wall portions of the press-fit groove 95a are pressed. This is because of problems such as cracking.

  With the advance of technology, electronic devices have become multifunctional and are becoming smaller and thinner. For this reason, it is desired to reduce the size and thickness of the connectors arranged in the electronic device and to increase the number of terminals. Therefore, there is a demand for reducing the pitch length of adjacent pins with a pitch length of about 0.3 to 0.4 mm.

  The present invention has reviewed the method of pressing and fixing the female connector pins into the housing one by one, making it smaller and thinner, improving coplanarity, and suppressing the occurrence of defective products as much as possible. An object of the present invention is to obtain a female connector and a manufacturing method thereof.

The female connector according to the first aspect of the present invention includes a female connector element arranged in parallel in a female connector housing that fits into the male connector housing and electrically connected to one of the male connector pins on a one-to-one basis. In the female connector having a plurality,
Each female connector element
A first housing element constituting a male connector pin housing portion having a pin insertion opening opened in the same direction as an adjacent female connector element;
A front end portion that is electrically connected to the front end portion of the male connector pin, an intermediate fixing portion that fixes the front end portion so as to be deflectable within the male connector pin housing portion of the first housing element, and a rear end portion connected to the electric circuit A female connector pin with
The second housing element is provided so as to be combined with the first housing element to constitute one housing element together with the first housing element, and to embed and fix the intermediate fixing portion. .

  According to a second aspect of the present invention, there is provided a female connector according to the first aspect, in which the intermediate fixing portion in the second housing element embedded and fixed to the intermediate fixing portion of the female connector pin according to the first aspect is moved in the axial direction. An anchor means for blocking is formed.

  A female connector according to a third aspect of the present invention is the female connector pin according to the first or second aspect, wherein the front end of the male connector pin has a substantially U-shaped cross section within the male connector pin housing portion. It is characterized by being bent into a concave shape so as to have a pair of opposing clamping parts that are clamped from both sides.

  The female connector which concerns on the invention described in Claim 4 is the female connector pin group which the female connector pin of any one of Claims 1-3 connected several female connector pins to the rear-end part side. As described above, each intermediate fixing portion is embedded and fixed by the second housing element and then separated separately on the rear end side.

A method of manufacturing a female connector according to the invention described in claim 5 is a method of manufacturing a female connector having a plurality of female connector elements arranged in parallel in a housing,
A step of previously placing a first housing part having a first housing element group constituting a male connector pin housing part having a pin insertion opening opened in the same direction as an adjacent female connector element in a molding die;
A front end portion that is electrically connected to the front end portion of the male connector pin, an intermediate fixing portion that fixes the front end portion so as to be deflectable within the male connector pin housing portion of the first housing element, and a rear end portion connected to the electric circuit A step of arranging the female connector pin group metal fittings connecting the rear end portions of the female connector pin group provided with a molding die while holding the tip portion in the male connector pin housing portion;
A second housing part that is injection-molded in the molding die to form a second housing element so as to be integrated with each of the first housing elements to form one housing element, and the intermediate fixing part is embedded and fixed. Forming a step;
And a step of separating the connection of the female connector pin group metal fittings to form a female connector pin group after the step of forming the second housing portion.

  According to a sixth aspect of the present invention, there is provided a method of manufacturing a female connector, wherein the first housing portion including the first housing element group according to the fifth aspect is pre-manufactured with another mold. It is characterized by.

  The present invention has reviewed the method of pressing and fixing the female connector pins into the housing one by one, making it smaller and thinner, improving coplanarity, and suppressing the occurrence of defective products as much as possible. There is an effect that can be.

It is a perspective view which shows the structure of one Example of the female connector of this invention. It is a perspective view which shows before the engagement of the female connector of FIG. 1 and the male connector fitted to this. It is a perspective view which shows after the engagement of the female connector and male connector of FIG. FIG. 4 is a cross-sectional view showing the engaged state of FIG. 2 and FIG. 3, in which FIG. 2a shows the state of FIG. 2, and FIG. It is explanatory drawing which shows the structure of the female connector pin used with the female connector of FIG. 1, a figure is a perspective view, b figure is a side view, and c figure is a front view. FIGS. 2A and 2B are cross-sectional views illustrating a manufacturing process of the female connector of FIG. 1, in which a is a state before the female connector pin is mounted on the first housing part, b is a state after the mounting, and FIG. The molded state is shown. It is a perspective view which shows the state of a figure of FIG. It is a perspective view which shows the state of b figure of FIG. It is a disassembled perspective view which shows the structure of the conventional female connector. It is explanatory drawing which shows the structure of the female connector pin used with the female connector of FIG. 9, a figure is a perspective view, b figure is a side view, and c figure is a front view. FIG. 10A is a cross-sectional view showing a manufacturing process of the female connector of FIG. 9, in which FIG. 9a shows a state before the female connector pin is attached to the first housing portion, and FIG.

  In the present invention, in the female connector having a plurality of female connector elements arranged in parallel in the housing, each female connector element has a male connector pin housing portion having a pin insertion opening opened in the same direction as the adjacent female connector element. The first housing element that constitutes the terminal, the distal end portion that is electrically connected to the distal end portion of the male connector pin, the intermediate fixing portion that fixes the distal end portion so as to be deflectable within the male connector pin housing portion of the first housing element, and the electrical circuit A female connector pin having a rear end portion, and a second housing element that is provided so as to be combined with the first housing element to form one housing element together with the first housing element, and that embeds and fixes the intermediate fixing portion. Is provided. Thereby, it can be made smaller and thinner, the coplanarity can be increased, and the occurrence of defective products can be suppressed as much as possible.

  Specifically, in the present invention, a female connector is configured by arranging a plurality of female connector elements holding one female connector pin in one housing element. The one housing element is composed of a first housing element that holds the distal end portion of the female connector pin in the male connector pin accommodating portion so as to be deflectable, and a second housing element that embeds and fixes the intermediate fixing portion of the female connector pin. The That is, the intermediate fixing portion of the female connector pin is embedded and fixed by injection molding or the like without performing mechanical press-fitting. Therefore, there is no press-fitting mark on the boundary surface between the intermediate fixing portion of each female connector pin and the second housing element. As a result, even if the intermediate fixing part is firmly fixed even if it is embedded and fixed in the second housing element in a state where the fixing area is short compared with the press-fitting by the conventional claw part, even if it is a multi-terminal connector, It is possible to make it thinner.

  In this invention, the 1st housing element which comprises the male connector pin accommodating part which has the pin insertion port opened in the same direction as the adjacent female connector element, the front-end | tip part electrically connected with a male connector pin front-end | tip part, and 1st A female connector pin having an intermediate fixing portion for fixing a tip portion of the housing element so as to be deflectable in a male connector pin housing portion and a rear end portion connected to an electric circuit, and a first housing element combined with the first housing element In addition, a female connector provided with a second housing element provided so as to constitute one housing element and embedding and fixing the intermediate fixing portion may be used, and various female connectors are targeted.

  In particular, the female connector of the board-to-board type connector, in particular, the fitting height is 1.0 mm or less, the inter-terminal pitch is 0.5 mm or less, and one end of the terminal is fitted to a male connector to be soldered. If it is a female connector of an ultra-compact board-to-board connector that is soldered at one end, as described above, the intermediate fixing part of the female connector pin is embedded and fixed with the second housing element to make it smaller and thinner. It is possible to increase coplanarity and to suppress the generation of defective products as much as possible.

  In addition, the intermediate fixing part of each female connector pin is embedded and fixed by injection molding or the like without mechanical press-fitting, so there is no need for a claw or shoulder part for fixing to the housing when press-fitting. Since a large number of pins are not press-fitted, the coplanarity can be increased without warping of the housing. Further, the pitch length of the adjacent female connector pins can be made smaller than the limit of about 0.3 to 0.4 mm. Thereby, even a multi-terminal connector can be made smaller than before.

  Preferably, an anchor means for preventing the intermediate fixing portion from moving in the axial direction in the second housing element embedded and fixed is formed in the intermediate fixing portion of each female connector pin. The anchor means may be a protrusion projecting outward from the shaft of the shaft intermediate fixing portion, such as a claw portion, but if the recess is cut out inside the shaft, adjacent connector pins are engaged with each other. There is nothing to do. Thereby, even if the pitch length of the adjacent female connector pins is made smaller and the housing element is made thinner by the recess formed in the intermediate fixing part, cracking hardly occurs, and it is firmly fixed in the second housing element.

  There may be at least one recess formed in the intermediate fixing portion, and it may be formed in the direction of the adjacent pin or in the direction crossing the adjacent pin. If it is formed in the direction crossing the adjacent pins, the pitch length of the adjacent female connector pins can be made smaller and the intermediate fixing portion can be moved in the axial direction even if a protruding member is provided. Can be inhibited.

  The tip of each female connector pin of the present invention is only required to be held in the first housing element so as to be able to bend, and moves when the male connector pin is inserted to engage and hold the male connector pin. That's fine. As one embodiment, the tip of the female connector pin is bent in a concave shape so as to have a pair of opposing holding portions that hold the male connector pin tip portion having a substantially U-shaped cross section from both sides in the male connector pin housing portion. What is being done is mentioned.

  The female connector pins of the present invention may be arranged one by one in the first housing element, but because of inefficiency, as a preferred aspect, a plurality of female connector pins are connected on the rear end side. As each female connector pin group metal fitting, each intermediate fixing portion may be individually separated on the rear end side after being embedded and fixed by the second housing element.

  That is, as a method for manufacturing the female connector of the present invention, as a first step, a first housing element group constituting a male connector pin housing portion having a pin insertion opening opened in the same direction as an adjacent female connector element is provided. The first housing part is previously placed in the molding die. After the placement, as a second step, the female connector pin group metal fitting is placed in the molding die while the tip portion is held in the male connector pin housing portion.

  The female connector pin group metal fitting includes a tip portion electrically connected to a tip portion of one male connector pin on a one-to-one basis, and an intermediate fixing portion that fixes the tip portion so as to be deflectable within the male connector pin housing portion of the first housing element. The rear end portion of the female connector pin group including the rear end portion connected to the electric circuit is connected. As a third step, the second housing is formed by injection molding into a molding die so as to be integrated with the first housing element to form one housing element, thereby forming the second housing element and embedding and fixing the intermediate fixing portion. Forming part.

  That is, by inserting the movable part of the female connector pin group metal fitting into the first housing element formed in advance and performing so-called “insert molding” to form the second housing element, the intermediate fixing portion of the female connector pin Can be reliably embedded in the second housing element, and the connector can be manufactured without adopting a step of press-fitting the female connector elements one by one into a predetermined portion of the housing.

  As a fourth step, after the step of forming the second housing part, a step of releasing the connection of the female connector pin group metal fitting to form a female connector pin group is provided. Thereby, manufacture of a female connector is easy, coplanarity can be raised, and generation | occurrence | production of inferior goods can also be suppressed as much as possible. In addition, the claw and shoulder portions of the connector pin that are required for the press-fitting operation are not essential, and therefore the pitch length of the adjacent female connector pins can be further reduced. For this reason, it becomes possible to make it still smaller than 0.3-0.4 mm considered to be a limit in the past.

  The first housing part has an insulating property in a mold constituted by a lower mold that previously forms the lower shape of the first housing part and an upper mold that forms the upper shape of the first housing part. Manufactured by injection molding resin. In this case, the first housing part may be taken out from the mold in which the first housing part is formed, and may be mounted on another mold together with the female connector pin group metal fitting, or the shape below the first housing part is configured. The subsequent steps may be performed while attached to the lower mold.

  FIG. 1 is a perspective view showing the configuration of an embodiment of the female connector of the present invention. FIG. 2 is a perspective view showing a state before engagement between the female connector of FIG. 1 and a male connector fitted thereto. FIG. 3 is a perspective view showing a state after the female connector and the male connector of FIG. 2 are engaged. 4 is a cross-sectional view showing the engaged state of FIGS. 2 and 3, wherein FIG. 4a shows the state of FIG. 2, and FIG. 4b shows the state of FIG. FIG. 5 is an explanatory view showing the configuration of the female connector pins used in the female connector of FIG. 1, wherein a is a perspective view, b is a side view, and c is a front view.

  6 is a cross-sectional view showing a manufacturing process of the female connector of FIG. 1. FIG. 6a shows a state before the female connector pin is mounted on the first housing part, FIG. 6b shows a state after the mounting, and FIG. The state which insert-molded the part is shown. FIG. 7 is a perspective view showing the state of FIG. FIG. 8 is a perspective view showing the state of FIG.

  1 to 8 is a female connector of a board-to-board connector that electrically connects two circuit boards. In the female connector of the present invention, the female connector 20 Needless to say, the technology is not limited to the board connection connector, and can be used in other connectors.

  As shown in FIGS. 2 and 3, the female connector 20 is a connector called a jack connector or a receptacle connector that fits into the male connector (plug connector) 10. The male connector 10 has a substantially rectangular male connector housing 11 and 20 male connector pins 12 fixed in parallel on two opposing long wall portions of the male connector housing 11. The male connector pins 12 arranged adjacent to each of the long wall portions by 20 are arranged at a predetermined pitch length.

  As shown in FIG. 4, the male connector housing 11 made of an insulating resin has an annular wall portion 13 formed along the periphery of the rectangular main body, and a flat wall 14 surrounded by the annular wall portion 13. Yes. The annular wall portion 13 includes a pair of long side walls 13 a that are suspended downward from the opposing long sides of the housing 11 and a pair of short sidewalls 13 b that are downwardly suspended from the opposing short sides of the housing 11. Yes. In the pair of long side walls 13a, inner grooves 15 are formed so as to penetrate the plane wall 14 in the longitudinal direction along the side surfaces thereof and reach the surface. A plurality of substantially U-shaped grooves 16 into which the male connector pins 12 are fitted are arranged at predetermined intervals in the longitudinal direction so as to surround the outer wall from each inner groove 15 through the lower side of the long side wall 13a.

  The male connector pin 12 is a metal strip-shaped conductive member having a predetermined thickness, and is formed by bending at different locations in the longitudinal direction. The male connector pin 12 includes a terminal portion 12d that is solder-bonded to the circuit board, and a substantially U-shaped curved portion that is curved so as to surround the outer wall from one end of the terminal portion 12d through the inner groove 15 and the lower side wall 13a. (Protrusion part) 12a.

  The curved portion 12a has an inner portion 12b exposed to the inside of the connector and an outer portion 12c exposed to the outside. As shown in FIG. 4, the inner side part 12b is provided between the terminal part 12d and the top part of the curved part 12a.

  The outer surface of the outer portion 12b has a concave portion 12e formed in parallel with the longitudinal direction of the connector 10 of the outer portion 12b. The recess 12e is formed by making the thickness of the male connector pin 12 smaller than other thicknesses. As shown in FIG. 4 b, the recess 12 e is formed so as to mesh with the step formed on the female connector pin 32 and 32 h when mated with the female connector 20.

  The substantially rectangular female connector 20 into which the male connector 10 is fitted has a female connector housing 21 made of insulating resin and 20 × 2 rows female connector pins 32 fixed to the female connector housing 21. . The plurality of female connector pins 32 are arranged at the same pitch as the male connector pins 12 in the front-rear direction.

  As shown in FIGS. 1 to 3, the female connector housing 21 made of an insulating resin includes a substantially rectangular annular wall 25, a flat wall 26, and an inner side of the annular wall 25 that are continuously formed along the peripheral edge thereof. It has the island part 27 projected in the surface direction in the center part. The annular wall 25 has a pair of long side walls 25 a that hang down from the opposed long sides of the housing 21 and a pair of short side walls 25 b that hang down from the opposed short sides of the housing 21. .

  As shown in FIGS. 1 and 4, the island portion 27 of the female connector housing 21 is a substantially rectangular member extending in the longitudinal direction of the housing 21 in which the substantially central portion of the flat wall 26 is raised. Further, a gap into which the annular wall portion 13 of the male connector 10 can be inserted is formed between the island portion 27 and the two long side walls 25a and between the island portion 27 and the two short side walls 25b.

  The island portion 27 is formed with a plurality of short grooves 28 into which the distal end portions of the female connector pins 32 extending from the long side wall 25a to the island portion 27 enter. The plurality of short grooves 28 are arranged at a predetermined pitch along the longitudinal direction. The pitch of the short grooves 28 is the same as the pitch of the male connector pins 12 and the grooves 16 of the male connector housing 11.

  In each of the short grooves 28 formed in the island portion 27, a distal end portion of a female connector pin 32 having a width smaller than the width of the short groove 28 is loosely fitted. As shown in FIG. 4, the distal end portion of the female connector pin 32 is bent in a U shape, and is bent into a substantially U shape of the male connector pin 12 at the rising piece of the bent portion facing the U shape distal end portion. The bending portion (protruding portion) 12a is held so as to be fitted.

  As shown in FIG. 4, the female connector housing 21 includes a first housing element 22 including an island portion 27 and inner portions of two long side walls 25a, and a second housing element 23 including outer portions of the two long side walls 25a. Consists of The first housing element 22 and the female connector pin 32 are arranged to be intertwined with each other. However, the first housing element 22 and the female connector pin 32 are not particularly in contact with each other in the short groove 28 formed in the island portion 27. The front end portion 34 of the first connector 34 functions as a male connector pin housing portion. Further, only the intermediate fixing portion of the female connector pin 32 is embedded in the second housing element 23.

  Specifically, as shown in FIG. 5, the female connector pin 32 is a metal strip-shaped conductive member having a predetermined thickness, and is bent at six predetermined positions in the longitudinal direction. The first bent portion 32a at the front end in the longitudinal direction of the female connector pin 32 is bent in an inverted U shape, and the second bent portion 32b is bent at an acute angle toward the rear end side and connected to the electric circuit. It forms substantially the same plane as the end portion 36. Subsequently, the third bent portion 32c is bent at a right angle to form a rising portion, and the fourth bent portion 32d is bent at a right angle to form a horizontal portion. A step 32h that meshes with the recess 12e is formed on the third bent portion 32c side of the fourth bent portion 32d.

  The fifth bent portion 32e is bent at a right angle to form a falling portion, and this falling portion is used as an intermediate fixing portion 35. This falling portion is embedded in the second housing element 23 of the female connector housing 21. Further, the distal end side of the fifth bent portion 32e is referred to as a distal end portion 34. The intermediate fixing portion 35 embedded in the second housing element 23 is formed with a recess 32g having a side wall notched on both side portions.

  The concave portion 32g functions as an anchor means for preventing the intermediate fixing portion 35 from moving in the axial direction. By the concave portion 32g, the pitch length of the adjacent female connector pins 32 is further reduced, and the second housing element 23 is Even if it is made thinner, the housing is less likely to crack and is firmly fixed.

  Subsequently, a horizontal rear end portion 36 is formed by bending at a right angle at the sixth bent portion 32f. The rear end portion 36 is soldered to the circuit board. As shown in FIG. 4, the single female connector element is a single female connector pin 32 and a housing element for distinguishing the female connector pin 32 from the adjacent female connector pins. As a specific housing element, there are a second housing element 23 portion in which the intermediate fixing portion 35 is embedded, a short groove 28 in which the distal end portion 34 is held so as to be able to bend inside, and the periphery thereof.

  As shown in FIGS. 6 to 8, the female connector 20 shown in FIG. 1 can be manufactured by arranging the female connector pins 32 one by one in the female connector housing 21, but 20 × 2 Even if it is a mechanical work, it takes time to arrange the female connector pins 32 in a row, and it becomes difficult to make the flatness of the individual female connector pins 32 uniform. Therefore, the female connector pin group metal fitting 60 is manufactured by connecting the rear end portions 36 of the 20 female connector pins 32 to each other.

  That is, as shown in FIG. 6, the female connector pin group metal fitting 60 includes a distal end portion 34 electrically connected to the substantially U-shaped curved portion (projecting portion) 12 a of the male connector pin 12, and the first housing element 22. A structure in which the rear end portions 36 of the female connector pin group including the intermediate fixing portion 35 that fixes the front end portion 34 so as to be deflectable in the male connector pin housing portion and the rear end portion 36 connected to the electric circuit are connected to each other. Is done.

  Further, the female connector housing 21 is also manufactured by being divided into the first housing element 22 and the second housing element 23 described above. First, the first housing element 22 is prepared. Although not shown, an insulating resin is placed in a mold formed of a lower mold that forms the lower shape of the first housing element 22 and an upper mold that forms the upper shape of the first housing element 22. Manufactured by injection molding.

  In this case, the first housing element 22 may be taken out from the mold and attached to another mold together with the female connector pin group metal fitting 60, or the lower mold constituting the lower shape of the first housing element 22 may be used. You may perform the subsequent process with mounting | wearing. As shown in FIG. 6 a and FIG. 7, the female connector pin group metal fitting 60 is mounted in the lower mold from above the first housing element 22.

  As shown in FIG. 6 b and FIG. 8, the distal end portion 34 on the distal end side from the fifth bent portion 32 e of each female connector pin 32 element of the female connector pin group metal fitting 60 arranged in the first housing element 22. Is mounted so that it can be flexibly fitted in each of the 20 short grooves 28 formed in each of the long wall portions of the island portion 27.

  After the two female connector pin group fittings 60 are mounted from both sides, the upper mold for forming the second housing element 23 is mounted, and then an insulating resin is injection-molded into the mold to form the second housing element 23. Manufacturing part. When the second housing element 23 is injection-molded, the intermediate fixing portion 35 that has fallen from the fifth bent portion 32e of each female connector pin 32 element of the female connector pin group metal fitting 60 in the mold is injected. It is buried with a functional resin.

  That is, by inserting the distal end portion 34 which is a movable portion of the female connector pin group metal fitting 60 into the first housing element 22 and performing so-called “insert molding” to form the second housing element, the female connector The intermediate fixing portion of the pin can be reliably embedded in the second housing element, and the connector can be manufactured without adopting a process of press-fitting the female connector elements one by one into a predetermined portion of the housing. Thereby, it can be made smaller and thinner, the coplanarity can be increased, and the occurrence of defective products can be suppressed as much as possible.

  Finally, as shown in FIG. 6c, after the second housing element 23 is injection-molded, the molded product is taken out from the mold and cut at a predetermined cutting location 61 of the female connector pin group metal fitting 60 to obtain individual females. The connector pin 32 is separated to obtain the female connector 20 of FIG.

10: Male connector,
11: male connector housing,
12 ... male connector pin,
12a ... curved portion (protruding portion),
12b ... inner side,
12c ... outer part,
12d ... terminal part,
12e ... recess,
13 ... annular wall,
13a ... long side wall,
13b ... Short side wall,
14 ... a flat wall,
15 ... inner groove,
16 ... groove,
20: Female connector,
21 ... Female connector housing,
22 ... first housing element,
23 ... second housing element,
25 ... annular wall,
25a ... long side wall,
25b ... Short side wall,
26 ... a flat wall,
27 ... Island,
28 ... short groove,
32 ... Female connector pin,
32a ... 1st bent part,
32b ... the second bent part,
32c ... 3rd bent part,
32d ... 4th bent part,
32e ... the fifth bend,
32f ... 6th bent part,
32g ... recess,
32h ... steps,
34 ... the tip,
35 ... intermediate fixing part,
36 ... rear end,
60 ... Female connector pin group metal fittings,
61 ... cutting part,

Claims (6)

In a female connector having a plurality of female connector elements arranged in parallel in a female connector housing that fits into a male connector housing and electrically connected to one of male connector pins in a one-to-one manner,
Each female connector element
A first housing element constituting a male connector pin housing portion having a pin insertion opening opened in the same direction as an adjacent female connector element;
A front end portion that is electrically connected to the front end portion of the male connector pin, an intermediate fixing portion that fixes the front end portion so as to be deflectable within the male connector pin housing portion of the first housing element, and a rear end portion connected to the electric circuit A female connector pin with
A female connector comprising: a second housing element that is provided so as to be combined with the first housing element to constitute one housing element together with the first housing element, and that embeds and fixes the intermediate fixing portion.   The intermediate fixing portion of the female connector pin is formed with anchor means for preventing the intermediate fixing portion from moving in the axial direction in the second housing element that is embedded and fixed. The female connector according to 1.   The distal end portion of the female connector pin is bent in a concave shape so as to have a pair of opposing sandwiching portions that sandwich the male connector pin distal end portion having a substantially U-shaped cross section from both sides in the male connector pin housing portion. The female connector according to claim 1 or 2.   The female connector pins are individually separated on the rear end side after each intermediate fixing portion is embedded and fixed in the second housing element as a female connector pin group in which a plurality of female connector pins are connected on the rear end side. The female connector according to any one of claims 1 to 3, wherein: A method of manufacturing a female connector having a plurality of female connector elements arranged in parallel in a housing,
A step of previously placing a first housing part having a first housing element group constituting a male connector pin housing part having a pin insertion opening opened in the same direction as an adjacent female connector element in a molding die;
A front end portion that is electrically connected to the front end portion of the male connector pin, an intermediate fixing portion that fixes the front end portion so as to be deflectable within the male connector pin housing portion of the first housing element, and a rear end portion connected to the electric circuit A step of arranging the female connector pin group metal fittings connecting the rear end portions of the female connector pin group provided with a molding die while holding the tip portion in the male connector pin housing portion;
A second housing part that is injection-molded in the molding die to form a second housing element so as to be integrated with each of the first housing elements to form one housing element, and the intermediate fixing part is embedded and fixed. Forming a step;
A method of manufacturing a female connector, comprising the step of separating the connection of the female connector pin group metal fittings to form a female connector pin group after the step of forming the second housing portion.   6. The method of manufacturing a female connector according to claim 5, wherein a step of previously manufacturing the first housing portion including the first housing element group with another mold is performed in advance.

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