JPH0821447B2 - Electrical connector structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector structure as a multi-pole connector used in electronic equipment and the like.

[0002]

2. Description of the Related Art A conventional electric connector structure of this type is provided with a main body block 53 as shown in FIG. 31, and the main body block 53 includes a shell 54 made of a metal material and having a substantially cylindrical shape. The shell 54 has an insulating housing 55 made of an insulating material and terminals 56 held in a plurality of rows in the insulating housing 55.

The shell 54 is formed in a substantially cylindrical shape,
A coupling portion 57 to be inserted into the receptacle shell of the receptacle is formed at the front portion (the lower portion in the figure, the front portion facing the mating connector, that is, the receptacle).

Then, one of the terminals 56 is connected to the ground terminal 5
6a, tap the ground terminal 56a, and screw 58 to the ground terminal 56a.
And attach the end of this ground contact spring 59 to the shell 5
The inner surface portion 60 of No. 7 was brought into contact with the ground.

[0005]

In the above conventional example, when the ground is taken from the terminal 56, the ground
Once the terminal to be grounded is determined, that terminal is limited to the ground (ground) terminal 56a in the entire connector. In other words, once the ground terminal was decided, it was not possible to take the ground from other terminals after that.

However, since even one type of connector is used for various purposes in the market, the ground terminals are not limited, and the current situation is that the ground terminals are different depending on the company. It was necessary to manufacture a connector each time, and there was a problem that the cost became huge.

The present invention was made by paying attention to the above-mentioned various problems, and a first object thereof is to:
In the plug, the ground terminal and the ground member can be located at any location where there is a terminal mounting hole in the insulating housing, and even one type of connector can be used for various purposes. An object of the present invention is to provide an electric connector structure capable of reducing the manufacturing cost.

A second object of the present invention is to provide an electric connector structure which ensures the contact of the ground member with the retaining ring.

A third object of the present invention is to increase the contact area of the ground member with the retaining ring,
An object is to provide an electrical connector structure with stable contact.

[0010]

In order to achieve the above first object, the present invention comprises a plug and a receptacle, the body block of which is inserted into a shell made of a conductive material and the shell. And a grounding terminal removably held in the terminal insertion hole of the insulation housing, and a holding member for pressing these terminals and the grounding terminal.
Detachably attach the insulating member and the pressing member into the shell, and provide a conductive stop ring on the inner circumference of the shell to prevent the pressing member from coming off. It is in contact with the ring.

In order to achieve the above second object, the present invention provides an electric connector structure according to claim 1, wherein the ground member is formed with a slit in the arc-shaped portion, It is configured by forming a protrusion on the edge portion, and the protrusion is brought into contact with the stop ring.

In order to achieve the above-mentioned third object, the present invention is the electrical connector structure according to claim 1, wherein the ground member is a piece provided with spring property on both sides of the arcuate portion. Part is formed, and the configuration is such that one end part is a contact part,
The contact portion is brought into contact with the stop ring.

[0013]

According to the structure of claim 1, when the terminal and the ground terminal are mounted in the terminal mounting hole of the insulating housing, the terminal mounting hole in which the ground terminal is mounted can be arbitrarily selected, and insulation is performed at this selected position. When the housing is inserted into the shell, a portion of the ground member can contact the stop ring.

As described above, in the plug, the ground terminal and the ground member can be positioned at any position where there is a terminal mounting hole in the insulating housing.
Even one type of connector can be used for various purposes, and the manufacturing cost can be reduced.

Further, according to the second aspect of the present invention, the projection is provided with elasticity by forming the slit, and the projection has elasticity and comes into contact with the retaining ring, and the projection is in point contact with its tip end. Since the contact is made by biting into the stop ring, the contact is secured.

According to the third aspect of the invention, the contact area of the ground member with the retaining ring is increased, and the contact is stabilized. In addition, the construction of the ground member is easy and the deformation thereof is small.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view of an electric connector structure according to the present invention in an exploded state, and FIG. 2 is a partially cutaway perspective view of an insulating housing in a state where a female terminal and a ground terminal are incorporated in a plug of the same connector structure.

The electrical connector structure according to the present invention comprises a plug 1 and a receptacle 2.

The plug 1 comprises a main body block 3, a coupling 4 and a code tube 5.

The main body block 3 includes a shell 6 made of a metallic material and having a substantially cylindrical shape, an insulating housing 7 made of an insulating material in the shell 6, and female terminals 8 held by the insulating housing 7 in a plurality of rows. , A ground terminal 9, an ground member 23 attached to the ground terminal 9, and a holding member 10 made of an insulating material for pressing the female terminal 8, the ground terminal 9 and the ground member 23 in the shell 6. are doing.

The shell 6 is formed in a substantially cylindrical shape as shown in FIG. 3, and the receptacle 2 is provided at its front portion (the left portion in the drawing, the one facing the mating connector or receptacle 2 is the front portion). The coupling portion 12 to be inserted into the receptacle shell 34 is formed with a flange portion 14 for locking the coupling 4 and the packing 13 in the middle portion. A slit-shaped guide 15 is formed in the axial direction on the peripheral surface of the coupling portion 12. Of shell 6,
An outer peripheral surface above the flange portion 14 is formed into a screw portion 16, and a guide ridge 17 extending in the axial direction is formed on the inner peripheral surface of the screw portion 16.

As shown in FIGS. 4 to 7, the insulating housing 7 is provided with a housing body 18 made of a synthetic resin cylindrical block, and the upper portion of the outer peripheral surface of the housing body 18 has a large diameter. On the large diameter portion 18a, four ground member insertion portions 20 and one guide groove 21 are formed at predetermined intervals in the circumferential direction. Four terminal mounting holes 22 are formed in the housing main body 18 so as to penetrate therethrough at equal intervals, and these terminal mounting holes 22 are located at the center point of the ground member insertion portion 20 and the center of the housing main body 18. It is located on the connecting straight line, and the upper portion of the terminal mounting hole 22 is a large diameter portion 22a. Further, on the upper surface of the housing body 18, a concave groove 23 extending from the ground member insertion portion 20 to the terminal mounting hole 22 and two positioning holes 19 are formed.

As shown in FIG. 8, the female terminal 8 is provided with a cord connecting portion 8a, a terminal contact portion 8b, and a large-diameter collar portion 8c between them, and the terminal contact portion 8b extends along the axial direction. A split groove 20a and an annular groove 21a at the tip thereof are formed.

As shown in FIG. 9, the ground terminal 9 is provided with a cord connecting portion 9a, a terminal contact portion 9b, and a large-diameter collar portion 9c between them, and this collar portion 9c has this collar portion 9c. A mounting portion 9d for mounting the ground member having a smaller diameter is formed, and the terminal contact portion 9b has a split groove 20 extending in the axial direction.
b and an annular groove 21b at the tip thereof are formed.

As shown in FIGS. 10 to 12, the ground member 23 is provided with an arcuate portion 24 made of a strip-shaped metal plate material, and the arcuate portion 24 is formed with a slit 25 extending in the left-right direction. A projection 24a is formed at the center of the rear edge of the arcuate portion 24, and a mounting portion 27 is provided at the center of the front edge of the arcuate portion 24 via a connecting portion 26. The portion 27 has an annular shape, and a discontinuous portion 27a is formed in a part thereof.
Is formed.

As shown in FIGS. 13 to 16, the holding member 10 is made of a synthetic resin disk-shaped block, and four contact through holes 28 are formed at equal intervals on the surface portion thereof, and the contact portion is provided on the peripheral side of the surface portion. Is formed with a retaining ring insertion groove 40, and four ground member insertion portions 41 are formed on the circumferential surface at predetermined intervals in the circumferential direction. It includes a protrusion insertion portion 42 formed in the central portion. Further, two positioning pins 29 are provided on the back surface of the surface portion.

Then, the winding spring 30 is mounted in the annular grooves 21a and 21b of the female terminal 8 and the ground terminal 9, and the mounting portion 27 of the ground member 9 is fitted to the mounting portion 9d thereof. Then, the ground member 23 is attached, and the female terminals 8 are inserted into the three terminal mounting holes 22 of the insulating housing 7.
The ground terminal 9 is mounted in one terminal mounting hole 22, and the arc-shaped portion 24 of the ground member 23 mounted in the ground terminal 9 is mounted.
Is inserted into the ground member insertion portion 20 of the insulating housing 7, and the connecting portion 26 of the ground member 23 is inserted into the groove 23.

In this state, the insulating housing 7 is inserted into the shell 6. In this case, the guide groove 2 of the insulating housing 7
The guide ridge 17 of the shell 6 is inserted into 1 to determine the position. When the insulating housing 7 is inserted into the shell 6, a part of the arcuate portion 24 of the ground member 23 is inserted into the ground member insertion portion 20. Then, the pressing member 10 is inserted into the shell 6, the female terminal 8 and the ground terminal 9 are inserted into the contactor through holes 28 of the pressing member 10, and the pressing member 10 is covered on the front end portion of the insulating housing 7. The retaining ring 32 is attached to the ring groove 33 on the inner surface of the shell 6 and the pressing member 10.
The retaining member 10 is fitted in the retaining ring insertion groove 40 and is pressed by the pressing member 10. A part of the arcuate portion 24 of the earth member 23 is inserted into the earth member insertion portion 41 of the pressing member 10, The protrusion 24a formed on the arcuate portion 24 is inserted into the protrusion insertion portion 42, and the tip end portion of the protrusion 24a is in contact with the stop ring 32. In this case, in the ground member 23,
Due to the formation of the slit 25, elasticity is imparted to the projection 24a. The projection 24a elastically comes into contact with the stop ring 32, and the projection 24a comes into point contact so that its tip bites into the stop ring 32. In order to
Secure contact. In this way, the insulating housing 7 is accommodated in the shell 6, and the main body block 3 is constituted by these. In this body block 3, the flange 4 of the shell 6 is rotatably attached to the flange 4 of the shell 6 by attaching the flange 4a on the inner side of the end thereof. The tube 5 is screwed on.

In the thus constructed plug 1, cords (not shown) are soldered to the cord connecting portions 8a, 9a of the female terminal 8 and the ground terminal 9.

The receptacle 2 has a cylindrical receptacle shell 34. The receptacle shell 3
A mounting flange 35 is formed on the outer peripheral portion of 4, and an annular stopper 36 is formed on the inner peripheral portion. The terminal holding member 37 and the waterproof packing 38 are inserted in the receptacle shell 34 in a stacked state, and the terminal holding member 37 and the waterproof packing 38 are formed in the ring groove of the inner peripheral portion of the receptacle shell 34. It is held by the receptacle shell 34 by being sandwiched by the stopper ring 39 and the stopper 36 fitted to 38 a. Then, the terminal holding member 37
The four male terminals 40 are mounted at equal intervals, and these male terminals 40 penetrate the waterproof packing 38. In the receptacle 2 thus configured, a code (not shown) is soldered to the code connecting portion 40a of the male terminal 40.

Next, the operation will be described.

The receptacle 2 is a mounting member (not shown).
Then, the mounting flange 35 is fixed by a screw and attached. Then, as shown in FIG. 19, the coupling portion 12 of the shell 6 of the plug 1 is inserted into the receptacle shell 34 of the receptacle 2 and the male terminal 40 is inserted into the female terminal 8 and the ground terminal 9 so that both terminals 8 and 40 are brought into contact with each other. Let In this case, the guide ridges 41 formed on the inner peripheral surface of the receptacle shell 34 are inserted into the guides 15 of the shell 6 of the plug 1 for guiding. In this way, the terminals 8, 9, 4
When 0 comes into contact, the coupling 4 is screwed into the screw portion 34a of the receptacle shell 34, and the plug 1 is connected to the receptacle 2.

Therefore, the ground terminal 9 (male terminal 4
0) is electrically connected from the ground member 23 to the mounting member through the shell 6 and the receptacle shell 34 and is grounded.

In this embodiment, when mounting the female terminal 8 and the ground terminal 9 in the terminal mounting hole 22 of the insulating housing 7, the terminal mounting hole 2 for mounting the ground terminal 9 therein.
2 can be arbitrarily selected, and when the ground member 23 is inserted into the ground member insertion portion 20 at this selected position and the insulating housing 7 and the pressing member 10 are inserted into the shell 6, The protrusion 24 a of the spacer member 23 can be brought into contact with the stop ring 32.

As described above, in the plug 1, the ground terminal 9 and the ground member 23 can be positioned at any place where the terminal mounting hole 22 of the insulating housing 7 is provided.

FIG. 20 is a partially cutaway perspective view of an insulating housing in a state where a female terminal and a ground terminal are incorporated in another plug of a connector structure.
The ground member 23 of this plug 1 is shown in FIGS.
As shown in 6, an arc-shaped portion 4 made of a strip-shaped metal plate material
3, the arc-shaped portion 43 has a central portion 43
With respect to c, the left and right sides are made into pieces 43a and 43b, and the pieces 43a and 43b are raised as shown in FIG.
The contact portions 44 parallel to the central portion 43c are provided at the end portions of a and 43b.
a and 44b are formed. Central part 43 of arcuate part 43
An attachment portion 46 is provided at c via a connecting portion 45, and this attachment portion 46 has an annular shape, and a discontinuous portion 4 is provided in a part thereof.
6a is formed.

As shown in FIGS. 27 to 29, the pressing member 10 is made of a synthetic resin disk-shaped block, and four contact through holes 47 are formed in the surface portion at equal intervals, and on the peripheral side of the surface portion. Has a stop ring insertion groove 48 formed therein, and an earth member insertion portion 49 formed on the peripheral surface thereof. The earth member insertion portion 49 is formed by lowering the stop ring insertion groove 48 by one step. It is composed of a concave portion 49a and a groove portion 49b connecting the concave portion 49a and the contact through hole 47.

Then, the winding spring 30 is mounted in the annular grooves 21a and 21b of the female terminal 8 and the ground terminal 9, and the mounting portion 46 of the ground member 9 is fitted in the mounting portion 9d of the ground terminal 9. The earth member 23 is attached, the female terminals 8 are mounted in the three terminal mounting holes 22 of the insulating housing 7, the ground terminals 9 are mounted in one terminal mounting hole 22, and the insulating housing 7 is inserted into the shell 6 in this state. To do. Then, the pressing member 10 is inserted into the shell 6 and the pressing member 10
The female terminal 8 and the ground terminal 9 are inserted into the terminal through holes 28 of the above, the pressing member 10 is covered on the front end portion of the insulating housing 7, and the arcuate portion 43 of the earth member 23 attached to the ground terminal 9 is pressed against the pressing member 10. Of the earth member 23 and the connecting portion 45 of the earth member 23 is inserted into the groove 49b.
To insert. The retaining ring 32 is fitted into the ring groove 33 of the inner surface portion of the shell 6 and the retaining ring insertion groove 48 of the retaining member 10 and pressed by the retaining member 10, and the left and right pieces 43a and 43b of the earth member 23 come into contact with each other. The portions 44a and 44b elastically contact the stop ring 32.

In this case, the retaining ring 3 of the earth member 23
The contact area with 2 increases and the contact becomes stable. In addition, due to the structure, the ground member 23 can be easily processed and less deformed.

[0040]

As described above, according to the present invention, a plug and a receptacle are provided, a main body block of the plug is a shell made of a conductive material, an insulating housing inserted in the shell, and a terminal insertion of the insulating housing. It is composed of a plurality of terminals and ground terminals that are detachably held in the holes and a holding member that holds these terminals and ground terminals, and the ground member is detachably attached to the ground terminal.
Since the insulating housing and the holding member are inserted into the shell and a conductive stop ring for preventing the holding member from coming off is provided on the inner peripheral portion of the shell, and a part of the ground member is brought into contact with the stop ring, the terminal and When mounting the ground terminal in the terminal mounting hole of the insulating housing, the terminal mounting hole in which the ground terminal is mounted can be arbitrarily selected, and when the insulating housing is inserted into the shell at this selected position, the A portion of the shell member may contact the retaining ring of the shell.

As described above, in the plug, the ground terminal and the ground member can be positioned at any position where there is a terminal mounting hole in the insulating housing.
Even one type of connector can be used for various purposes, and the manufacturing cost can be reduced.

Further, according to the present invention, in the electric connector structure according to claim 1, the ground member is formed by forming a slit in the arc-shaped portion and forming a protrusion at an edge of the arc-shaped portion. Since the projection is brought into contact with the stop ring, elasticity is imparted to the projection due to the formation of the slit, and this projection elastically contacts the stop ring, and the projection becomes point contact, so that the tip of the projection becomes the stop ring. Since the contact is made in a biting manner, the contact is ensured.

Further, according to the present invention, in the electric connector structure according to the first aspect, the ground member is formed with a spring-provided piece on both sides of the arcuate portion, and the end of the piece is contacted. Since the contact portion is brought into contact with the stop ring, the contact area of the earth member with the stop ring increases,
Contact is stable. In addition, the construction of the ground member is easy and the deformation thereof is small.

[Brief description of drawings]

FIG. 1 is a perspective view of an electric connector structure according to the present invention in an exploded state.

FIG. 2 is a partially cutaway perspective view of an insulating housing in a state where an earth member, a female terminal and a ground terminal are incorporated in a plug having the same connector structure.

FIG. 3 is a side view with a partial cross section of a shell.

FIG. 4 is a plan view of an insulating housing.

FIG. 5 is a bottom view of the same.

FIG. 6 is a sectional view taken along the line AA of FIG.

FIG. 7 is a view from the direction of FIG. 4B.

FIG. 8 is a partially cutaway plan view of a female terminal.

FIG. 9 is a partially cutaway plan view of a ground terminal.

FIG. 10 is a plan view of the ground member.

FIG. 11 is a side view of the same.

FIG. 12 is a front view of the same.

FIG. 13 is a plan view of a pressing member.

FIG. 14 is a bottom view of the same.

FIG. 15 is a cross-sectional view taken along the line C-C of FIG.

FIG. 16 is an arrow view from the direction of FIG. 14D.

FIG. 17 is a cross-sectional view with a part of the plug omitted.

FIG. 18 is an enlarged view of part E of FIG.

FIG. 19 is a vertical cross-sectional view showing a state where the plug is fitted in the receptacle.

FIG. 20 is a partially cutaway perspective view of the insulating housing of the plug having the electrical connector structure in which the ground member, the female terminal and the ground terminal having different structures are incorporated.

FIG. 21 is a sectional view of the same.

FIG. 22 is a plan view of the ground member.

FIG. 23 is a side view of the same.

FIG. 24 is a front view of the same.

FIG. 25 is a bottom view of the same.

FIG. 26 is a cross-sectional view taken along the line F-F of FIG.

FIG. 27 is a plan view of a pressing member.

FIG. 28 is a side view of the same portion in section.

FIG. 29 is a view from the direction of FIG. 27G.

FIG. 30 is a cross-sectional view taken along the line HH of FIG.

FIG. 31 is a front view of a conventional electric connector structure.

FIG. 32 is a cross-sectional view taken along the line I-I of FIG.

[Explanation of symbols]

 1 Plug 2 Receptacle 3 Body Block 6 Shell 7 Insulating Housing 8 Female Terminal (Terminal) 9 Ground Terminal 10 Holding Member 20 Ace Member Insertion Part 22 Terminal Mounting Hole 23 Ace Member 24 Arc Shaped Part 24a Projection Part 32 Stop Ring 43 arc-shaped portions 43a, 43b one-piece portions 44a, 44b contact portions

Claims (3)

[Claims] 1. A plug comprising a plug and a receptacle, the main body block of which is detachably held in a shell made of a conductive material, an insulating housing inserted in the shell, and a terminal mounting hole of the insulating housing. It is composed of terminals and ground terminals and a pressing member that presses these terminals and ground terminals. An earth member is detachably attached to the ground terminal, and the insulating housing and the pressing member are inserted into the shell so that the inner peripheral portion of the shell An electrical connector structure characterized in that a conductive stop ring for preventing the retainer from coming off is provided on the base, and a part of the ground member is brought into contact with the stop ring. 2. An electric member according to claim 1, wherein the ground member is formed by forming a slit in the arcuate portion and forming a protrusion at an edge portion of the arcuate portion, and the protrusion is brought into contact with a stop ring. Connector structure. 3. The ground member has a structure in which spring-provided pieces are formed on both sides of an arcuate part, and the ends of the pieces are contact parts, and the contact parts are brought into contact with a stop ring. The electric connector structure according to claim 1.