JP2004134148A - Fitting structure of connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting structure of a connector allowing the size in a direction for mounting terminals side by side to be made as small as possible. <P>SOLUTION: Each fitting guide part 111 composed of a side end face 223 of a terminal support wall 22 supporting contact parts 311 and 321 of terminals 31 and 32 to a fitting part 11 of a plug connector 1, and a side wall 411 forming the fitting part 11 of the plug connector 1 and facing to the end face 223 is formed in the fitting direction. Side walls forming the fitting part of a mating receptacle connector are used as guide walls received by the guide parts 111; projecting parts 612 of the other connector are entered into the guide parts 111 in fitting both the connectors to each other; and the guide walls are entered into the guide parts 111 while being guided by the end faces 223 and the side walls 411. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fitting structure of one connector such as a plug connector and the other connector such as a receptacle connector.
[0002]
[Prior art]
Conventionally, a plug connector and a receptacle connector that are fitted to each other have a structure in which contact portions of terminals facing a fitting portion of each connector are engaged with each other to be electrically conductive. A plurality of terminals are provided in parallel at a predetermined pitch, and the contact portions are engaged one by one. For this reason, means for guiding the fitting are usually provided so that the fitting of the mutual connectors is correctly performed in the direction in which the terminals are arranged in parallel.
[0003]
As a means for guiding this fitting, a structure is generally adopted in which a guide post is provided in a fitting portion of one connector, and a fitting guide portion for receiving the guide post is provided in a fitting portion of the other connector. (For example, see the post 23 and the recess 26 shown in FIG. 1 of JP-A-2-256183, the polar guide portion 25 and the guide receiving portion 19a shown in FIG. 1 of JP-A-6-50267). ). The guide means comprising the guide post and the fitting guide portion for receiving the guide post is provided independently outside (in the parallel direction) of the contact portion of the terminal arranged in parallel with the fitting portion of each connector. . That is, the contact portions of the terminals are arranged side by side at the center of the fitting portion, and a guide post is provided on one connector on both sides in the parallel direction, and the other connector is formed by a recessed portion for receiving the guide post. A joint guide section was provided. Furthermore, the guide post has a guide function by making the outer end of the guide post tapered.
[0004]
[Problems to be solved by the invention]
As described above, in the conventional connector fitting structure, the means for guiding the fitting is provided outside independently of the contact portions of the terminals arranged in parallel, and furthermore, the outside of the tip of the guide post is tapered. In addition, since the guide function is provided, it is difficult to reduce the size of the connector in the width direction (the parallel direction of the terminals).
[0005]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a connector fitting structure capable of minimizing a size in a direction in which terminals are provided in parallel.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a fitting portion of one connector and a fitting portion of the other connector are fitted to each other, and contact portions of terminals arranged in parallel with each fitting portion are related to each other. In the mating structure of the connector,
The fitting portion of one connector includes a side end surface of a terminal support wall that supports the contact portion of the terminal, and a side wall that forms the fitting portion of the connector and faces the side end surface. A mating guide portion is provided in the fitting direction, and the distal end surface of the terminal support wall is retreated inside the open end of the side wall,
A side wall forming a fitting portion of the other connector is a guide wall received by the fitting guide portion,
When the two connectors are fitted, a projecting portion formed by projecting from the guide wall of the other connector enters the fitting guide portion, and furthermore, the guide wall is connected to the fitting guide portion by a side end face. A connector fitting structure characterized in that the connector enters while being guided by a side wall.
[0007]
[Action]
In the connector fitting structure of the present invention configured as described above, the fitting guide portion is formed by the side end surface of the terminal support wall of one connector and the side wall of the fitting portion, and the fitting guide portion of the other connector is formed. A guide wall is formed on the side wall so as to be received by the fitting guide portion, and a guide means is formed by the fitting guide portion and the guide wall. Eliminating the independent members, the size of the terminals in the parallel direction can be reduced in comparison with the conventional guide means including a guide post and a fitting guide portion for receiving the same, and the terminal support wall has a distal end surface. Is retracted inside, so that damage to the terminal support wall at the time of fitting can be prevented.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0009]
The plug connector 1 shown in FIG. 1 to FIG. 6 and FIG. 17 is fitted as one connector, and the receptacle connector 5 shown in FIG. 11 to FIG. A rectangular tubular fitting portion 11 is formed at one end (left end in FIG. 1) of the plug connector 1, while a rectangular tubular fitting portion 51 is formed at one end (right end in FIG. 11) of the receptacle connector 5. Thus, the fitting part 51 of the receptacle connector 5 fits inside the fitting part 11 of the plug connector 1.
[0010]
As shown in FIG. 3, the plug connector 1 covers an insulating housing 2, two types of terminals 31 and 32 mounted in parallel on the insulating housing 2, and covers the outside of the insulating housing 2. And a metal shell 4 provided. The insulating housing 2 is formed by molding an insulating plastic, and the terminals 31, 32 and the metal shell 4 are formed by stamping a metal plate. The fitting portion 11 is constituted by a rectangular tubular portion 41 provided at one end of the metal shell 4. The insulating housing 2 integrally includes a block-shaped main body portion 21 on which the terminals 31 and 32 are mounted, and a plate-shaped terminal support wall 22 facing the center of the rectangular tubular portion 41 of the metal shell 4 from the main body portion 21. ing. The other end (the right side in FIG. 1) of the metal shell 4 is formed in an inverted U-shape so as to be in contact with the upper surface and both side surfaces of the main body 21 of the insulating housing 2, A part 42 is formed, and a mounting leg 422 extends from a lower end of each side wall 421 of the main body part 42. The terminal support wall 22 is provided such that the distal end surface 224 is retreated slightly inside one end of the side wall 411, that is, on the other end side from the opening end 411a on the fitting portion 11 side (the left side in FIG. 1). Slightly means that the terminal support wall 22 is in a positional relationship such that when the terminal support wall 22 is fitted with the receptacle connector 5, the terminal support wall 22 strongly collides with the protrusion 612 formed on the receptacle connector 5 and is not damaged.
[0011]
The terminals 31 and 32 are a terminal 31 having a contact portion 311 supported on the upper surface of the terminal support wall 22 of the insulating housing 2 and a terminal 32 having a contact portion 321 supported on the lower surface of the terminal support wall 22. The shape of the solder tails 312 and 322 extending outward (rearward) from the main body 21 of the insulating housing 2 is changed. FIGS. 7 and 8 show the terminal 31 and FIGS. 9 and 10 show the terminal 32 in a state of being punched and formed in parallel with the carriers 313 and 323, respectively.
[0012]
In each of the terminals 31 and 32, the contact portions 311 and 321 extend from mounting portions 314 and 324 which are inserted into and locked in terminal insertion holes 211 formed in the main body 21 of the insulating housing 2. The contact portion 311 of the terminal 31 is formed by being displaced downward toward the distal end, so as to be securely housed in the housing groove 221 on the upper surface of the terminal support wall 22. On the contrary, the contact portion 321 of the terminal 32 is formed by being displaced upward toward the tip so as to be securely housed in the housing groove 222 on the lower surface of the terminal support wall 22.
[0013]
Solder tails 312, 322 extend in an L-shape from the mounting portions 314, 324 of the terminals 31, 32 to the opposite side to the contact portions 311, 321. The solder tail 312 of the terminal 31 extends through the horizontal extension 315 so as not to cross the solder tail 322 of the terminal 32 as shown in FIG. The solder tail 322 of the terminal 32 extends directly from the mounting portion 324. When the terminal 32 is mounted on the insulating housing 2, the solder tail 322 hangs down along the rear surface of the main body 21 to form a tail guide formed on the rear surface. It is configured to be accommodated in the groove 212 (see FIG. 6).
[0014]
As shown in FIGS. 7 and 9, the width of the solder tails 312 and 322 is half that of the width of the contact portions 311 and 321 of the terminals 31 and 32. Further, the solder tail 312 of the terminal 31 is provided to be deviated rightward when the contact portion 311 is viewed forward, whereas the solder tail 322 of the terminal 32 is provided deviated leftward. As a result, the solder tails 312 and 322 can be arranged at half the pitch of the contact parts 311 and 321 at the terminal support wall 22. However, in this embodiment in which the solder tail 312 of the terminal 31 is provided via the horizontal extension 315, the two solder tails 312, 322 are arranged in a staggered manner.
[0015]
As shown in FIG. 13, the receptacle connector 5 fitted to the plug connector 1 as described above has an insulating housing 6 and two types of terminals 71 and 72 mounted in parallel with the insulating housing 6, respectively. And a metal shell 8 provided to cover the outside of the insulating housing 6. As in the case of the plug connector 1, the insulating housing 6 is formed of an insulating plastic, and the terminals 71 and 72 and the metal shell 8 are formed by stamping a metal plate.
[0016]
The fitting portion 51 of the receptacle connector 5 includes a rectangular tubular portion 61 provided at one end of the insulating housing 6 and a rectangular tubular portion 81 of the metal shell 8 formed to overlap the outside of the rectangular tubular portion 61. They work together. A receptacle cavity 52 is formed in the fitting portion 51 by the rectangular cylindrical portion 61 of the insulating housing 6, and the contact portion 711 of the terminal 71 is arranged in a cantilever manner on the upper side of the receptacle cavity 52, and is arranged in a lower side. The contact portion 721 of the other terminal 72 is arranged in a cantilevered manner.
[0017]
The insulating housing 6 is integrally provided with a block-shaped main body 62 that is continuous with the rectangular tubular part 61. Further, the metal shell 8 is integrally provided with an inverted U-shaped main body 82 that covers the upper surface and side surfaces of the main body 62 of the insulating housing 6 so as to be continuous with the rectangular tubular portion 81. A mounting leg 822 is provided on a side wall 821 of the main body 82.
[0018]
A plurality of terminal insertion holes 621 are provided in parallel in the main body 62 of the insulating housing 6, and one terminal 71 is inserted and locked in the upper terminal insertion hole 621, and the lower terminal insertion hole 621 is provided. The other terminal 72 is inserted and locked.
[0019]
The terminals 71 and 72 have the contact portions 711 and 721 extending from mounting portions 712 and 722 which are inserted and locked into the terminal insertion holes 621, respectively, and have an L-shaped solder tail in a direction opposite to the contact portions 711 and 721. 713 and 723 extend. The width of the solder tails 713 and 723 is half the width of the contact portions 711 and 721 at the point where the solder tail 713 of the terminal 71 extends via the horizontal extension portion 714 and is biased in opposite directions. This is similar to the case of the terminals 31 and 32 of the plug connector 1. Further, the same is true in that the solder tail 723 of the terminal 72 is accommodated in the tail guide groove 622 (FIG. 16) formed in the main body 62 of the insulating housing 6.
[0020]
As shown in FIGS. 4 and 15 and FIGS. 17 and 18, the fitting portion 11 of the plug connector 1 and the fitting portion 51 of the receptacle connector 5 have similar shapes. The fitting portion 51 fits inside the fitting portion 11 of the plug connector 1 without a gap. That is, inside the rectangular tubular portion 41 of the metal shell 4 forming the fitting portion 11 of the plug connector 1, the rectangular tubular portion 81 of the metal shell 8 forming the fitting portion 51 of the receptacle connector 5 is provided. Are fitted without any gap, so that the two metal shells 4 and 8 are in contact with each other at the rectangular tubular portions 41 and 81. Further, a spring piece 412 is cut and raised inward from the side wall 411 of the square tubular portion 41 on the plug connector 1 side, so as to elastically contact the side wall 811 of the rectangular tubular portion 81 of the receptacle connector 5.
[0021]
The fitting guide portion 111 is formed by the side end surface 223 of the terminal support wall 22 facing the fitting portion 11 of the plug connector 1 and the side wall 411 of the rectangular tubular portion 41 of the metal shell 4 facing the side end surface 223. , Are formed on both sides of the terminal support wall 22 in the fitting direction. In contrast to the fitting guide portion 111 of the plug connector 1, the receptacle connector 5 includes a side wall 611 of the rectangular tubular portion 61 of the insulating housing 6 forming the fitting portion 51 and a rectangular tubular portion of the metal shell 8. The side walls 811 of the 81 cooperate to form a guide wall 511. The width W1 (FIG. 4) of the fitting guide portion 111 is substantially equal to the width W2 (FIG. 15) of the guide wall 511. A projecting portion 612 having a mountain-shaped cross section is provided at the end of both side walls 611 of the insulating housing 6 having the guide wall 511 so as to protrude from the front of the side wall 811 of the metal shell 8 (to the right in FIG. 16). Thus, it is easy for the guide wall 511 to enter the fitting guide portion 111. Further, the protruding portion 612 has tapered portions 612a and 612b inside and outside (see FIG. 16).
[0022]
Hereinafter, the state of the thus configured plug connector 1 and receptacle connector 5 at the time of fitting will be described.
[0023]
It goes without saying that when the plug connector 1 and the receptacle connector 5 are directly fitted to face each other, they can be fitted without any problem.
[0024]
Next, a case where the plug connector 1 and the receptacle connector 5 are fitted obliquely to each other will be described. However, this is a case where the degree of the oblique inclination is relatively small. First, the projecting portion 612 of the receptacle connector 5 enters the fitting guide portion 111 of the plug connector 1. At this time, the inside of the side wall 411 of the plug connector 1 and the side wall 811 of the receptacle connector 5 are in contact with each other, and the terminal support wall 22 is in a positional relationship not to contact the tapered portion 612b of the protrusion 612 (see FIG. 19). This is because the distal end surface 224 of the terminal support wall 22 is located at a position where the terminal support wall 22 is retracted by the fitting portion 11.
[0025]
When the fitting is further advanced, the oblique state is corrected, and the state approaches a straight state (see FIG. 20).
[0026]
Finally, the plug connector 1 and the receptacle connector 5 are fitted in a straight state with each other, and the terminal support wall 22 is not damaged (see FIG. 21).
[0027]
Further, as shown in FIG. 22, when the terminal support wall 22 is obliquely fitted at a relatively large angle different from that in FIG. 19, the terminal support wall 22 and one of the protrusions 612 may come into contact with each other. However, since the tapered portion 612 b is formed inside the protruding portion 612, the inside of the other side wall 411 contacts the side wall 811 before the terminal support wall 22 and the protruding portion 612 come into contact with each other. Thus, the force when the terminal support wall 22 comes into contact with the protruding portion 62 is reduced. Therefore, breakage of the terminal support wall 22 is prevented.
[0028]
The outer tapered portion 612a is for preventing the opening end 411a of the side wall 411 from hitting when the plug connector 1 and the receptacle connector 5 are fitted. Even if it hits, since it has a tapered shape, the protrusion 612 is less likely to be scraped, and as a result, the guide function of the protrusion 612 is not impaired.
[0029]
【The invention's effect】
As described above, according to the connector fitting structure of the present invention, the fitting guide portion and the guide wall are formed by the terminal support wall and the side wall of the cylindrical portion forming the connector fitting portion. In addition, since there is no separate and independent member for guiding the fitting, the width of the connector can be reduced as much as possible, and the terminal supporting wall can be prevented from being damaged during the fitting.
[Brief description of the drawings]
FIG. 1 is a plan view of a part of a plug connector according to an embodiment of the present invention, which is cut away.
FIG. 2 is a front view of the plug connector.
FIG. 3 is a sectional view taken along the line AA of FIG. 1;
FIG. 4 is a left side view of the plug connector of the embodiment.
FIG. 5 is a right side view of the plug connector.
FIG. 6 is a bottom view of the plug connector.
FIG. 7 is a plan view of terminals constituting the plug connector.
FIG. 8 is a front view of the terminal.
FIG. 9 is a plan view of another terminal constituting the plug connector.
FIG. 10 is a front view of another terminal.
FIG. 11 is a plan view of the receptacle connector according to the embodiment of the present invention, which is partially cut away.
FIG. 12 is a front view of the receptacle connector.
FIG. 13 is a sectional view taken along the line BB of FIG. 11;
FIG. 14 is a left side view of the receptacle connector of the embodiment.
FIG. 15 is a right side view of the receptacle connector.
FIG. 16 is a bottom view of the receptacle connector.
FIG. 17 is a perspective view of the plug connector of the embodiment.
FIG. 18 is a perspective view of the receptacle connector of the embodiment.
FIG. 19 is a plan view showing a part of a state where the plug connector and the receptacle connector are fitted to each other;
FIG. 20 is a plan view showing a part of the fitted state, which is also cut away.
FIG. 21 is a plan view showing a part of the fitted state cut away.
FIG. 22 is a plan view showing a part of the fitted state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Plug connector 11 Fitting part 111 Fitting guide part 2 Insulating housing 21 Main body part 211 Terminal insertion hole 212 Tail guide groove 22 Terminal support wall 221 Housing groove 222 Housing groove 223 Side end surface 224 Tip surface 31 Terminal 311 Contact part 312 Solder tail 313 Carrier 314 Mounting part 315 Horizontal extension part 32 Terminal 321 Contact part 322 Solder tail 323 Carrier 324 Mounting part 4 Metal shell 41 Square tubular part 411 Side wall 411a Open end 412 Spring piece 42 Body part 421 Side wall 422 Mounting leg 5 Receptacle connector 51 Fitting portion 511 Guide wall 52 Receptacle cavity 6 Insulating housing 61 Square tubular portion 611 Side wall 612 Projecting portion 62 Main body 621 Terminal insertion hole 622 Tail Id groove 71 terminal 711 contact portion 712 mounting portion 713 solder tail 714 horizontal extension 72 terminal 721 contact portion 722 mounting portion 723 solder tails 8 metal shell 81 square tubular portion 811 side wall 82 the main body portion 821 sidewalls 822 attachment leg

Claims (5)

The fitting part (11) of one connector (1) and the fitting part (51) of the other connector (5) were fitted together and arranged in parallel with each fitting part (11, 51). In a connector fitting structure in which contact portions (311, 321, 711, 721) of terminals (31, 32, 71, 72) are engaged with each other, a fitting portion (11) of one connector (1). In addition, a side end surface (223) of a terminal support wall (22) supporting the contact portions (311 and 321) of the terminals (31 and 32) and a fitting portion (11) of the connector (1) are formed. A fitting guide portion (111) composed of the side end surface (223) and a side wall (411) opposed to the side end surface (223) is provided in the fitting direction, and a tip end surface (224) of the terminal support wall (22). Retreats inward from the open end (411a) of the side wall (411). Rutotomoni,
Side walls (611, 811) forming the fitting portion (51) of the other connector (5) are guide walls (511) to be received by the fitting guide portion (111). At the time of fitting of 5), a protruding portion (612) formed by protruding from the guide wall (511) of the other connector (5) enters the fitting guide portion (111), and further, the guide A connector fitting structure, wherein a wall (511) enters the fitting guide portion (111) while being guided by a side end surface (223) and a side wall (411). The fitting portion (11) of the one connector (1) is formed in a cylindrical shape by a metal shell (4) installed outside an insulating housing (2) on which terminals (31, 32) are mounted. The connector fitting structure according to claim 1, wherein the side wall forming the mating guide portion (111) is a side wall (411) of the tubular portion (41) of the metal shell (4). The fitting portion (51) of the other connector (5) is installed outside the insulating housing (6) and the cylindrical portion (61) of the insulating housing (6) to which the terminals (71, 72) are mounted. And a tubular portion (81) of a metal shell (8) covering the tubular portion (61) of the insulating housing (6), and the guide wall (511) is formed of a tubular material of the insulating housing (6). 2. The connector fitting structure according to claim 1, comprising a side wall (611) of the portion (61) and a side wall (811) of the cylindrical portion (81) of the metal shell (8). An insulating housing (2), a plurality of terminals (31, 32) mounted in parallel with the insulating housing (2), and a metal shell (4) provided so as to cover the outside of the insulating housing (2). Composed,
The contact portions (311, 321) of the terminals (31, 32) are supported by terminal support walls (22) formed on the insulating housing (2), and
A cylindrical portion (41) of the metal shell (4) surrounds the outside of the terminal support wall (22) to form a fitting portion (51) with the receptacle connector (5),
A fitting guide for guiding the fitting of the receptacle connector (5) by the side end surface (223) of the terminal supporting wall (22) and the side wall (411) of the cylindrical portion (41) of the metal shell (4). A plug connector, wherein a portion (111) is formed, and a tip end surface (224) of the terminal support wall (22) is recessed inward from an open end (411a) of the side wall (411). . An insulating housing (6), a plurality of terminals (71, 72) mounted in parallel with the insulating housing (6), and a metal shell (8) provided so as to cover the outside of the insulating housing (6). Composed,
A tubular portion (81) of the metal shell (8) is provided so as to overlap the outside of the tubular portion (61) formed on the insulating housing (6), and the fitting portion (51) for the plug connector (1) is provided. ) To form
The tubular portion (61) formed in the insulating housing (6) and the tubular portion (81) of the metal shell (8) form a guide wall (511) for guiding the fitting of the plug connector (1). At the same time, a protrusion (612) having a chevron cross section projecting from the side wall (611) of the cylindrical portion (81) of the metal shell (8) is formed on the side wall (611) of the cylindrical portion (61) of the insulating housing (6). ) Is provided.

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