CN102170069B - plug - Google Patents

Abstract

Provided is a thin-type plug. A metal housing (5) of the plug (1) comprises a cover part (51) in a flat shape and an arm part (52), a sidewall part (53) which clamps a substrate (3) in a arranging direction of connected cables (3) and a clamping part (54) which protrudes from the sidewall part (53) and clamps the substrate (3) between the arm parts (52). When the housing (5) is installed to the substrate (3) maintained as the column of a conductive, through a parallel movement along a regulated direction (A1) of the cable (C) with respect to the substrate (3), end parts of the substrate (3) along the arranging direction of the cables are respectively disposed between each clamping part (54) and the arm part (52). A clamping stop protruding part (33a) is disposed on the substrate (3). A clamped protruding part (54a) which passes over the clamping protruding part (33a) through the elastic deformation of the housing (5) during the installation of the substrate (3) is disposed on the housing (5).

Description

plug

technical field

The present invention relates to a plug (header) constituting a connector which electrically connects electric wires and a printed wiring board together with a receptacle.

Background technique

Conventionally, there has been provided a connector including a plug and a receptacle. The plug has a plurality of posts each made of a conductive material and having a terminal portion to which each of a plurality of electric wires arranged in the same direction is connected. 1; and a base body (body) made of insulating material and holding the post, the socket has: a plurality of contact bodies each made of conductive material capable of contacting the post of the plug; and a body made of insulating material holding the contact body The housing, the socket is detachably combined with the plug. That is, when the plug is coupled to the socket, electrical connection is realized between the plurality of electric wires respectively connected to the posts of the plug and the printed wiring board or the like on which the contacts of the socket are respectively mounted.

As such a connector, as shown in FIGS. 9 to 11 , there is a structure provided with a plug 1 to which a plurality (for example, 40) of coaxial cables C are aligned in the longitudinal direction and connected to each other. They are arranged in one row in a direction perpendicular to the longitudinal direction (for example, refer to Patent Document 1).

If described in detail, the plug 1 has a plurality of columns 2 each made of a conductive material, formed into an elongated shape, connected to the core line C1 of the coaxial cable C, and the columns 2 are formed by insert molding. ) to hold the matrix 3 made of synthetic resin moldings. Hereinafter, the up-down direction is based on FIG. 9 . That is, the side on which the plug 1 is located is referred to as an upper side with respect to the socket. In addition, the direction in which the cables C are arranged is called a left-right direction. Furthermore, the longitudinal direction of the cable C is referred to as a front-rear direction, and the direction in which the cable C is led out from the plug 1 is referred to as a rearward direction.

Each column 2 has a terminal portion 21 exposed on the upper side of the base body 3 and welded to the core wire C1 of the cable C, and a contact portion 22 exposed on the lower side of the base body 3 and in contact with the contact body of the socket.

Furthermore, on the base 3, a case 5 made of a conductive material for shielding electromagnetic noise is mounted. On the upper and lower sides of the braided wires (braided wires) C2 of the coaxial cables C connected to the plug 1, ground rods GB made of conductive materials are welded respectively. The ground rod GB is also covered by the main body portion 5 a of the case 5 . The case 5 has, for example, a metal plate that is formed by punching and bending, a main body 5a that is long on the left and right and covers the upper side of the base 3, and a joint that is cut downward from both left and right ends of the main body 5a. Sheet 5b. On each coupling piece 5b, coupling holes 5c are formed penetratingly to the left and right, respectively.

Here, on the left and right end surfaces of the base body 3, recesses 3a open up and down are respectively provided, and coupling protrusions 3b are projected from the bottom surfaces of the recesses 3a. On the upper end portion of the coupling convex portion 3b, there is provided an inclined surface that reduces the protrusion dimension from the bottom surface of the concave portion 3a upward.

When attaching the case 5 to the base 3 , the coupling pieces 5 b of the case 5 are pressed into the respective recesses 3 a of the base 3 from above. Then, the lower ends of the connecting pieces 5b are in sliding contact with the inclined surfaces of the upper ends of the connecting protrusions 3b, and the shell 5 is elastically deformed so that the distance between the lower ends of the connecting pieces 5b becomes larger. 3b respectively reach the combining holes 5c, the shell 5 returns elastically, and the combining convex parts 3b are snapped into the combining holes 5c respectively. Here, by engaging each coupling protrusion 3b into the coupling hole 5c, the housing 5 is prevented from falling upward with respect to the base 3, and the attachment of the housing 5 to the base 3 is completed.

Patent Document 1: Japanese Patent Laid-Open No. 2007-149709

In order to reduce the size of an electronic device using the above-mentioned connector, the plug 1 is also required to be thinner.

Contents of the invention

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a plug that can be reduced in thickness.

The invention of claim 1 is a plug that constitutes a connector together with a receptacle that has a plurality of contact bodies each made of a conductive material, and a housing made of an insulating material that holds each of the contact bodies, and is characterized in that , comprising: a plurality of columns, having a terminal portion and a contact portion, the terminal portions are respectively made of conductive material and connected to one of the plurality of electric wires arranged in the same direction, and the contact portion can be in contact with the contact body of the socket; The base body is made of an insulating material and holds the posts respectively; and the shell is made of an elastically deformable conductive material and is coupled to the base body with the terminal portion of the post sandwiched between the base body; the shell has: a main body portion, It is a flat shape, sandwiching the terminal part of the column between the base body; side wall parts, respectively protruding from the main body part, clamping the base body in the direction in which the wires connected to the column are arranged; and clamping parts, extending from the side wall part protrudes, and sandwiches the base between the main body; the shell has the following structure, that is, when the base is installed, by moving in parallel with the base in the insertion direction in the length direction of the wire, between each clamping part and the main body The structure of the ends in the direction in which the wires are arranged in the base body are respectively introduced into the base body; on the base body, a restricting part and a locking part are provided. The amount of displacement in the direction of parallel movement during installation, the locking part limits the displacement of the shell relative to the base in the opposite direction to the above-mentioned direction by abutting on the shell; on the shell, a locked part is provided, During the installation process of the base body, the locked part passes over the locked part through the elastic deformation of the shell.

According to this invention, it is possible to reduce the thickness of the plug.

The invention of claim 2 is characterized in that, in the invention of claim 1 , the locked portion is provided on each pinching portion, and passes over the locking portion by elastic deformation that increases the distance between the pinching portions.

The invention of claim 3 is characterized in that, in the invention of claim 1 , the locked portion is provided on the main body, and passes over the locking portion by elastic deformation that increases the distance between the main body and the clamping portion.

The invention of claim 4 is characterized in that, in any one of inventions of claims 1 to 3, the base body is made of synthetic resin; on the base body, an insert case is held by insert molding, and the insert case is made of a conductive material. It is made of material, and is in the shape of sandwiching each column between the main body of the shell; the shell has a contact portion that is in contact with the insert shell.

Invention effect

According to the invention of claim 1, the case has: a main body having a flat shape, sandwiching the terminal portion of each column between the base and the base; Clamp the base in the direction; and the clamping part protrudes from the side wall and sandwiches the base with the main body; the shell has the following structure, that is, when the base is installed, the Parallel movement in the specified direction, between each clamping part and the main body part, respectively introduce the structure of the end part of the direction in which the wires are arranged in the base body; on the base body, a restricting part and a locking part are provided, and the restricting part is abutted On the shell, the displacement of the shell relative to the base is limited, that is, the displacement in the direction of parallel movement when it is installed on the base, and the locking part limits the displacement of the shell relative to the base by abutting on the shell, that is, to the direction of parallel movement when the base is installed. The amount of displacement in the opposite direction to the above direction; on the shell, a locked portion is provided, and the locked portion passes over the locked portion through the elastic deformation of the shell during the installation process of the base body. Therefore, it is possible to reduce the thickness of the plug.

Description of drawings

1( a ) and FIG. 1( b ) are perspective views showing main parts of Embodiment 1 of the present invention, respectively. FIG. 1( a ) shows the state before the case is attached to the base, and FIG. 1( b ) shows the state before the case is mounted on the base. The state of the installed shell.

FIG. 2 is a perspective view showing the embodiment.

Fig. 3 is a perspective view showing a state in which the structure of the embodiment with the case removed is viewed from a direction opposite to that of Fig. 2 .

FIG. 4 is a perspective view showing the embodiment viewed from a direction opposite to that of FIG. 2 .

FIG. 5 is a perspective view showing a main part of a case in a modified example of the embodiment.

Fig. 6 is a perspective view showing a main part of Embodiment 2 of the present invention.

Fig. 7 is a perspective view of main parts showing the configuration with the case removed in the embodiment.

Fig. 8 is a perspective view of other main parts showing the configuration with the case removed in the embodiment.

Fig. 9 is a partially broken perspective view showing a conventional example.

FIG. 10 is a perspective view showing a state in which a case is removed in the conventional example.

FIG. 11 is a side view showing this conventional example.

Symbol Description

1 plug

2 columns

3 matrix

4 insert shell

5 shells

33 Combining concave part (the inner surface constitutes the restricting part in the technical solution)

33a locking convex part (locking part in the technical solution)

34 Locking concave part (the inner surface constitutes the restricting part in the technical solution)

51 cover (part of the main body in the technical solution)

52 arm part (a part of the main body in the technical solution, the contact part in the example of Fig. 1 to Fig. 4, and the locked part in the technical solution in the example of Fig. 6 to Fig. 8)

52a Contact convex part (contact part in technical solution)

53 side wall

54 clamping part (in the example of Fig. 6～Fig. 8, it is the contact part in the technical solution)

54a The locked convex part (the locked part in the technical solution)

C1 core wire (the wire in the technical solution)

Detailed ways

Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings.

(Embodiment 1)

As shown in FIG. 2, the plug 1 of this embodiment has a structure in which a plurality of coaxial cables C arranged in a straight line are aligned in the same direction, and is connected to a socket (not shown) mounted on a printed wiring board (not shown). ) together constitute a connector for electrically connecting each of the plurality of coaxial cables C to the printed wiring board.

The receptacle of the connection plug 1 has a plurality of contacts each made of a conductive material and electrically connected to the printed wiring board by soldering or the like, and a case made of an insulating material that holds each contact.

As shown in FIG. 3 , the plug 1 includes, for example, a plurality of posts 2 formed by punching and bending a metal plate, and a base made of synthetic resin in which the posts 2 are held by insert molding. 3. Hereinafter, the up-down direction is based on FIG. 2 . In addition, the direction in which the coaxial cables C are arranged (lower left-upper right direction in FIG. 2 ) is referred to as a left-right direction. Furthermore, the longitudinal direction of the coaxial cable C is referred to as the front-rear direction, and the direction in which the coaxial cable C is pulled out from the plug 1 is referred to as rearward. Above-mentioned socket is positioned at the lower side of plug 1. In addition, the above-mentioned directions are only defined for convenience of description, and do not necessarily coincide with directions in an actual use state.

Each column 2 has, as shown in FIG. 3 , a terminal portion 21 to which a core wire C1 of one coaxial cable C is connected by welding, and a contact portion 22 capable of contacting a contact body of a socket.

The base body 3 has a main body 31 that is long left and right and flattened up and down, and arm parts 32 protruding outward in the left and right direction from both left and right ends of the main body 31 . On the lower surface of the main body 31 (the upper surface in FIG. 3 ), there is provided a storage recess 30 open to the rear, and the terminal portions 21 of the columns 2 are respectively connected to the core C1 of the coaxial cable C in the storage recess 30 . Furthermore, the present embodiment includes two ground rods GB, each of which is in the shape of a rectangular parallelepiped that is long on the left and right and flattened on the top and bottom, and is welded to each coaxial cable C so as to sandwich the coaxial cables C from top to bottom. The braided wire C2 is stored in the storage recess 30 . In addition, the contact portion 22 of each column 2 protrudes downward (upper in FIG. 3 ) with respect to the opening of the receiving recess 30, and is fitted into a recess (not shown) included in the housing of the socket to form a contact with the socket. The contact body is in contact conduction.

Furthermore, an insert shell 4 formed by punching and bending a metal plate is held on the base 3 by insert molding. The insert case 4 has a main body 41 substantially covering the upper surface of the main body 31 of the base body 3 with the thickness direction facing the vertical direction, arm parts 42 protruding from the left and right ends of the main body 41 outward in the left and right direction, and Both front and rear end portions of each arm portion 42 protrude downward, respectively, and L-shaped joint portions 43 whose lower ends are bent inwardly in the front-rear direction. That is, each arm portion 32 of the base body 3 is sandwiched between the joint portion 43 of the insert case 4 in the front-rear direction, and is sandwiched between the lower end portion of the joint portion 43 of the insert case 4 and the arm portion 42 in the vertical direction, This increases the strength of the bond of the insert shell 4 to the base body 3 .

Furthermore, on the base 3, as shown in FIG. 4, the metal plate is punched in such a manner that the storage recess 30 is closed (that is, the terminal portion 21 of the post 2 is sandwiched between the base 3 and the base 3). The case 5 is joined to the bent case 5 in a state where the terminal part 21 of each column is sandwiched between the main body part of the case described later and the insert case 4 .

The case 5 has a cover portion 51 that covers the storage recess 30 as viewed from below (upper in FIG. 4 ) with the thickness direction facing the up-down direction. The lower side of the arm portion 32 of the base 3 and the arm portion 52 constituting the main body together with the cover portion 51 protrude upward (downward in FIG. 4 ) from the front end of each arm portion 52 to sandwich the base in the left-right direction. 3 side wall portion 53, and the clamping portion 54 protruding from the upper end of each side wall portion 53 toward the inside of the left-right direction, sandwiching the arm portion 32 of the base body 3 between the arm portion 52 in the up-down direction .

In the base body 3 , the size in the front-rear direction of the main body portion 31 is larger than that of the arm portion 32 , and the front and rear end portions of the main body portion 31 of the base body 3 respectively protrude in the front-rear direction relative to the arm portion 32 . On the left and right ends, on the rear side with respect to the arm portion 52, respectively, and protrude upward (downward in FIG. 4 ) are gripping claws 55 that grip the main body portion 31 of the base 3 in the left-right direction.

Furthermore, the insert case 4 has a contact portion 44 projecting downward from each arm portion 42 and exposed on the lower side of the arm portion 32 of the base body 3 , and each arm portion 52 of the case 5 is in contact with the insert case 4 . The lower part of the part 44 is in contact with conduction. Thereby, the case 5 and the insert case 4 make the electric potentials coincide with each other.

In addition, on the upper surface of each arm portion 32 of the base body 3, there are provided joint recesses 33 open to the outside and rear side in the left-right direction, respectively, and the clamping portions 54 of the case 5 are accommodated in the joint recesses 33, respectively. The vertical depth of the coupling recess 33 is approximately equal to the thickness of the clamping portions 54 of the case 5 , and the tops of the clamping portions 54 of the shell 5 are approximately the same as the tops of the arm portions 32 of the base body 3 . In addition, the rearward inner surface of the coupling recess 33 limits the displacement of the case 5 relative to the base 3 , that is, the forward displacement, preventing the case 5 from falling off the base 3 forward. That is, the rearward inner surface of the coupling recess 33 constitutes a restricting portion in the technical solution. Furthermore, in each coupling recessed portion 33, locking protrusions 33a are protruded on the inner surfaces facing the outer sides in the left-right direction, and on each clamping portion 54 of the shell 5, there are protruding locking protrusions 33a facing inwards in the left-right direction. The locking convex portion 54a, through the locking convex portion 33a being located at the rear side of the locked convex portion 54a, limits the displacement of the shell 5 relative to the base 3, that is, the displacement to the rear, and prevents the shell 5 from moving from the base 3 to the rear. Rear shedding.

Here, at the rear end portion of the locking convex portion 33a, an inclined surface is provided to make the protruding dimension of the locking convex portion 33a smaller as it gets closer to the rear. The protrusion dimension of the convex part 54a is an inclined surface which becomes smaller toward the front.

When the shell 5 is mounted on the base 3, as shown in FIG. 33 is introduced from the rear as indicated by arrow A1. Thus, the left and right end portions of the base body 3 are respectively introduced between the arm portion 52 and the clamping portion 54 of the case 5 . Finally, if the locked convex portion 54a of the case 5 abuts on the locked convex portion 33a of the base body 3, through the mutual interaction between the above-mentioned inclined surface of the locked convex portion 54a and the above-mentioned inclined surface of the locked convex portion 33a, In sliding contact, the case 5 is elastically deformed so that the distance between the clamping parts 54 becomes larger. If the shell 5 is further displaced forward relative to the base 3 and the locked convex portion 54a passes over the locked convex portion 33a, the shell 5 will return elastically, as shown in FIG. 1(b), and the locked convex portion 54a will snap into To the front side of the locking convex portion 33a, the attachment of the case 5 to the base body 3 is completed here.

Here, in the above-mentioned mounting process, the shell 5 is elastically deformed to increase the distance between the front end portion of each clamping portion 54 and the arm portion 52, and elastically deforms as a whole to make the left and right end portions relative to the left and right directions. The central part is displaced downward. And, the rear end portion of the bottom surface (inner surface facing upward) of the coupling recess 33 is inclined downward toward the outside in the left-right direction (that is, the size of the arm portion 32 in the up-down direction becomes smaller toward the outside in the left-right direction) to avoid Open the base portion of the clamping portion 54 (near the connection portion to the side wall portion 53 ) that is displaced downward in accordance with the above-mentioned elastic deformation.

The present inventor has successfully realized the thinning of the plug 1 (reduction in the size of the vertical direction in the expression in the above description) through the adoption of the above-mentioned structure, and the connector in the state where the plug 1 is connected to the socket can be realized. The overall height dimension (that is, the stacking height) is reduced from 1.5mm in the conventional example to 0.8mm.

In addition, as shown in FIG. 5 , contact protrusions 52a protruding upward from the arm portion 52 of the case 5 and elastically contacting (elastically contacting) the contact portion 44 of the inner case 4 may be provided, for example, by embossing.

(Embodiment 2)

The basic configuration of the present embodiment is the same as that of the first embodiment, so the description of the common parts will be omitted.

In this embodiment, the specific structures of the locking portion and the locked portion that prevent the case 5 from falling backward from the base body 3 are different from those in the first embodiment. That is, instead of the locking convex portion 33a and the locked convex portion 54a, as shown in FIGS. The locking recess 34 of the arm part 52 of the case 5 is opened and accommodated in the outer side of the left-right direction. That is, in this embodiment, by accommodating each arm portion 52 of the case 5 in the locking recess 34, the displacement of the case 5 relative to the base 3, that is, the displacement in the front-back direction is prevented. The inner surface of the rear constitutes a restricting portion, and in each arm portion 32 of the base body 3, the position on the rear side than the locking concave portion 34 constitutes a locking portion of the technical proposal, and each arm portion 52 of the shell 5 constitutes a locking portion of the technical proposal respectively. department.

In addition, as shown in FIG. 8 , the contact portion 44 of the inner case 4 is exposed in the joint recess 33 not on the lower side of the arm portion 32 of the base body 3 but on the upper side. That is, in the present embodiment, not the arm portion 52 of the case 5 but the clamping portion 54 serves as a contact portion that contacts and conducts with the contact portion 44 of the inner case 4 . In addition, it goes without saying that the arrangement of the contact portion 44 can be appropriately changed in the first embodiment and the present embodiment so that, for example, in the first embodiment, the contact portion 44 of the inner case 4 is placed on the base 3 in the same manner as in the present embodiment. The upper side is exposed, or in this embodiment, the contact portion 44 of the inner case 4 is exposed on the lower side of the base body 3 similarly to the first embodiment.

Furthermore, on each arm portion 32 of the base body 3 , guide protrusions 35 are respectively protruded rearward from the outer ends in the left-right direction. Each guide protrusion 35 is an inclined surface whose lower surface (upper surface in FIG. 6 and FIG. 7 ) inclines toward the rear and upward (that is, the dimension in the vertical direction decreases toward the rear).

In this embodiment, when installing the case 5 to the base 3 , the case 5 is placed in a state where each guide protrusion 35 of the base 3 is introduced between the arm portion 52 and the clamping portion 54 of the case 5 . Push it forward relative to the base body 3. Then, when the upper surface of each arm portion 52 of the case 5 comes into sliding contact with the lower surface (the aforementioned inclined surface) of the guide protrusion 35, the case 5 is elastically deformed so that the distance between the arm portion 52 and the clamping portion 54 becomes larger. Finally, with the elastic return of the shell 5 , each arm portion 52 is snapped into the locking recess 34 respectively.

Here, in the elastic deformation during the installation process as described above, the end portion on the side wall portion 53 side of the arm portion 52 of the case 5 is lower than the portion on the cover portion 51 side (in FIGS. 6 and 7 ). above) the displacement becomes smaller. Therefore, on the lower surface of the arm portion 32 of the base body 3 , the part behind the locking recess 34 is inclined toward the outside in the left-right direction and upward (that is, the dimension in the vertical direction becomes smaller toward the outside in the left-right direction) to avoid The above-mentioned end portion of the arm portion 52 of the case 5 is opened.

The inventors of the present invention also succeeded in reducing the thickness of the plug 1 (reducing the size in the vertical direction in the expression in the above description) by adopting the above-mentioned structure.

As above, the present invention has been described centering on the embodiments. However, within the spirit of the present invention and the scope of the claims, various modifications, changes, or corrections are possible in the technical field. Therefore, the above description and drawings are not intended to The technical idea that defines the present invention should be construed as an illustration of the present invention.

Claims (4)

1. A plug which constitutes a connector together with a receptacle, which has a plurality of contact bodies made of conductive material and a housing which is made of insulating material and holds each contact body respectively, characterized in that, This plug has: a plurality of pillars, the pillars have a terminal part and a contact part, the terminal parts are respectively made of conductive material and connected to one of the plurality of electric wires arranged in the same direction, and the contact part can contact the contact body of the socket; a substrate, comprised of an insulating material, holding the posts respectively; and The shell is made of an elastically deformable conductive material, and is bonded to the base with a terminal portion of the post sandwiched between the base and the base; The shell has: The main body has a flat shape, and the terminal part of the column is sandwiched between the base and the base; side wall portions protruding from the main body portion respectively, sandwiching the base body in the direction in which the electric wires connected to the column are arranged; and The clamping part protrudes from the side wall part and clamps the base body between the main body part; The shell has the following structure: when installing the base body, by moving in parallel with respect to the base body in the insertion direction in the length direction of the wires, the ends in the direction in which the wires are arranged in the base body are respectively introduced between each clamping part and the main body part; On the base body, there are a restricting part and a locking part. The restricting part limits the displacement of the shell relative to the base body in the direction of parallel movement when it is installed on the base body by abutting against the shell. On the shell, limit the displacement of the shell relative to the base in the opposite direction to the above direction; A locked portion is provided on the shell, and the locked portion passes over the locked portion through the elastic deformation of the shell during the installation process of the base body. 2. The plug of claim 1, wherein: The locked parts are respectively provided on the clamping parts, and pass over the locking parts through elastic deformation that increases the distance between the clamping parts. 3. The plug of claim 1, wherein: The locked portion is provided on the main body, and passes over the locked portion through elastic deformation that increases the distance between the main body and the clamping portion. 4. The plug according to any one of claims 1 to 3, wherein: The matrix is made of synthetic resin; On the base body, an insert shell is held by insert molding, the insert shell is made of a conductive material, and is in the shape of sandwiching each column between the main body of the shell; The shell has a contact portion in contact with the insert shell.

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