KR101095437B1 - Connector - Google Patents

Abstract

It is possible to reduce the area of the plug connector supporting the electric wire and the receptacle connector connected to the circuit board, to reduce the size and to make the contact between the contacts reliably and stably, and to provide a connector that can firmly and firmly connect the plug connector and the receptacle connector. For the purpose of this, the fitting projection 81 provided to protrude into the receptacle insulator 71 when the plug connector 20 is attached to the receptacle connector 70 is provided to the fitting recess 38 formed in the plug insulator. A connector in which the contact portion 54 of the plug contact 50 is sandwiched by the elastic deformation portion 96 of the receptacle connector 90 supported by the receptacle insulator.

Description

Connector {Connector}

The present invention relates to a connector having a plug connector having a plug contact connected to an electric wire and a receptacle connector mounted on a circuit board.

Mobile Phones, PDAs (Personal Digital Asistants), and Other Information Some of the components of mobile terminals (such as speakers, microphones, and vibration motors) are not compatible with repolations performed after soldering to circuit boards. It cannot be directly mounted on. Therefore, it is common to mount a receptacle connector on a circuit board, and to connect the component to a plug outlet through an electric wire, and to connect the receptacle connector and a plug connector.

The plug connector of Patent Document 1 (Japanese Patent No. 3745318), which is a conventional example of this kind of connector, is connected to a plug insulator, a pair of metal plug contacts fixed side by side in one direction of the plug insulator, and connected to each plug contact. A pair of wires is provided.

Each plug contact includes a contact portion (contact plate) extending in an orthogonal direction orthogonal to the one direction, a lead portion (connection portion, base) extending from the contact portion to a plug contact in the other direction, and a receptacle connector from both ends in the orthogonal direction of the lead portion. It has a pair of piezoelectric plates extending to the side and connected to the electric wires. On the other hand, the receptacle connector includes a receptacle insulator and a pair of metal receptacle contacts fixed to the receptacle insulator side by side in one direction and connected to the circuit board. At both ends of the receptacle insulator, a pair of side walls for supporting the receptacle contact are provided to protrude toward the plug connector side, and a pair of side walls is a recess for fitting the plug connector. Each receptacle contact is supported at one end thereof in a fixed state on each side wall, and the lower end side thereof is elastically deformable.

Therefore, when the plug connector fits into the recess of the receptacle connector, the pair of wires and the circuit board are electrically connected because the free ends of the pair of receptacle contacts of the receptacle connector contact the contacts of the pair of plug contacts while elastically deforming. It is conducting.

In recent years, with the miniaturization of devices, the demand for lowering the size and area of the connector has increased greatly.

As a countermeasure, in the connector of Patent Document 1, a plug connector supporting an electric wire is fitted to a box-shaped receptacle connector, and the free end of the receptacle contact is brought into contact with the contact portion of the plug contact formed on the side of the plug connector. It is a structure to make it low, and it aims at low hydration. However, since the contact state between the contacts is the above-described aspect, if the elastic force decreases with the miniaturization of the receptacle contact, the amount of displacement changes under the influence of the rattling caused by the electric wave shaking or the fitting deviation, resulting in unstable contact resistance. It becomes easy.

In addition, the connector disclosed in Patent Document 2 (Japanese Patent No. 3059965) includes a pair of clamping pieces extending from the connecting base into a two-legged shape from a connecting base, and the pair of clamping pieces is provided. As a result, the contact portion of the plug outlet is sandwiched so as to stabilize contact between the contacts. However, the pair of clamping pieces are springs having a simple piece that fixes the bottom side and extends to the fitting side, and a length is required for easy elastic deformation.

However, when the pinching piece is lengthened, the height dimension of the receptacle connector is increased, and the contact position with the plug contact is also high. Therefore, the contact portion of the plug contact must also be increased. In addition, since the plug connector and the receptacle connector have a laminated structure (the structure is not provided with concave and convex portions fitted to opposite surfaces of the insulator), it is difficult to reduce the overall size of the connector. In addition, the overall area of the connector for the laminated structure is realized, but since the position of the wire is separated from the fitting piece (position) of the plug connector and the receptacle connector (higher), when the moment is applied to the plug due to an external force applied to the wire, It is easy to cause the fitting misalignment to the connector obliquely.

As a result, from the viewpoint of low magnification and gender area reduction, the connector area of the Patent Document 1 has problems of gender area and contact reliability, and the connector of Patent Document 2 has a problem of low magnification and fit retention force. Becomes

SUMMARY OF THE INVENTION An object of the present invention is to reduce the area and reduce the area of a plug connector supporting a wire and a receptacle connector connected to a circuit board, and to reliably and stably contact the contacts with each other. It is to provide a connector that can be connected easily.

The connector of the present invention supports a pair of receptacle connectors supported in parallel in one direction and having a pair of metallic receptacle contacts mounted on a circuit board, a plug insulator, and a pair of plug insulators supported side by side in the one direction. A contact having a metal plug contact and a pair of electric wires extending in a direction substantially orthogonal to the one direction in which one end is connected to each of the plug contacts, and having the receptacle connector and a plug connector that can be attached and detached. A contact portion extending in the one direction and in a direction orthogonal to the opposite direction of the plug connector and the receptacle connector, a pair of connecting portions extending from the contact portion toward the other plug contact side, and from the pair of connecting portions Toward each other And a pair of fitting retaining portions extending later toward the other plug contact side and having a pair of connecting portions for connecting with the wires and holding the contact portions on opposite surfaces of the plug insulator with the receptacle insulator; And a pair of fitting recesses for accommodating the connecting portions positioned between the pair of fitting holding portions, and a receiving recess for accommodating the connecting portion and the electric wire formed between the pair of fitting recesses. A wall portion having a portion and a pair of wire support holes adjacent to the receiving recess and simultaneously extending in the one direction and extending toward the receptacle connector to support the wire, wherein the receptacle contact includes: And extending from the fixing portion toward the other receptacle contact side The one end of the plug connector side has a portion having an approximately U-shaped cross section, and the space in the one direction on the opposite inner surface of the portion having a substantially U-shape in a free state is narrower than the dimension in the above-mentioned direction of the contact portion. A pair of fixing grooves having an elastic deformation portion and holding the fixing portion on the opposite surface to the plug connector of the receptacle insulator, and positioned between the pair of fixing grooves to elastically deform the elastic deformation portion. Protrudes toward the plug connector side between the pair of contact recesses and the pair of contact recesses, faces the free end of the elastic deformation portion in the one direction, and is mounted when the plug connector is mounted on the receptacle connector. A pair of fitting protrusions fitted to the fitting recess, and the pair of fitting protrusions To accept a said pair of wires formed between chulbu characterized by having a wire receiving space available.

An accommodating concave may be formed on an opposing surface of the plug connector of the receptacle insulator, extending in a direction parallel to the contact concave and the electric wire, and capable of hanging or peeling the contact portion.

An engagement protrusion may be formed at the wall portion of the plug insulator from the wall to the receptacle connector side, and an engagement recess may be formed in the receptacle insulator to receive the engagement protrusion when the plug connector is attached to the receptacle connector.

The reinforcing rib may have a circular cross-sectional shape and protrude a reinforcing rib on the opposite surface of the receptacle insulator from the fitting protrusion in which the amount of protrusion in the one direction from the fitting protrusion gradually decreases. .

The contact portion of the plug contact may have a structure formed of two plates constituted by bending one rapid plate.

A jig inserting part which can insert a part of a jig into and out of the jig may be formed in the plug insulator.

Since the elastic deformation portion of the receptacle contact of the present invention extends in the direction orthogonal to the height direction of the connector, sufficient elastic force and deformation amount can be ensured even if the connector is reduced in size. Moreover, since it is open in a substantially U shape at the fitting side, it is excellent in the inflow property of a plug contact, and can prevent buckling, deformation, etc. by forceful contact of a plug connector. In addition, since the receptacle contact can pinch the contact portion of the plug contact, the contact reliability is good.

Furthermore, since the stepped portion is formed between the connecting portion and the connecting portion of the plug contact, and the wall portion of the plug insulator is formed on the stepped portion, the plate thickness of the wall portion can be increased. Therefore, even when the plug connector is reduced in size and size, it is possible to enhance the effect of the mechanical strength of the plug insulator and the wire support. In addition, when the plug connector and the receptacle connector are mounted, the fitting protrusion of the receptacle insulator fits into the fitting recess of the plug insulator, so that the plug connector and the fitting recess are prevented even if an external force is unexpectedly applied to the wire. It is possible to reliably prevent separation in the front direction orthogonal to the contacting and falling direction of the receptacle connector.

In addition, since the fitting protrusion is protruded on the receptacle insulator side, the fitting protrusion is fitted to the fitting recess on the plug insulator side, so that the entire connector is not increased. In addition, the step area of the plug contact can be used to increase the area of the castle, and the fitting recesses and the fitting protrusions can be enlarged in the extending direction of the electric wire, thereby improving the mechanical strength of the fitting protrusions. In this way, the fitting protrusion is fitted by the fitting recess while increasing the mechanical strength of the plug insulator, so that the plug connector and the receptacle connector can be firmly and firmly connected even when the connector is reduced in size and size.

In addition, since the fitting recess is enlarged in the extending direction of the electric wire while the area of the plug is increased by the step of the plug contact, the width of the receptacle contactor fitted to the fitting recess can be increased. Therefore, even when the connector is made larger in area, the drop in elastic force of the receptacle contact can be prevented.

According to the invention of claim 2, since the receptacle insulator has an accommodating recess for receiving the contact portion of the plug contact, the accommodating recess is used as a guide (inflow) of the plug contact when the contact portion of the plug contact fits into the elastic deformation portion of the receptacle contact. Because of this function, it is possible to prevent the buckling and deformation of the receptacle contact due to the fitting operation in the excessive posture of the contact portion.

In addition, after the contact between the plug contact and the receptacle contact, even if an unnecessary force is applied to the plug connector, the contact recess maintains the contact performance because the position of the contact portion of the plug contact is regulated.

According to the invention of claim 3, since the height of the wall portion is increased by forming the engaging protrusion on the plug contact, a wire diameter hole having a large diameter can be formed even in a plug contactor with a low size. Therefore, a large diameter wire can be used and the wire can be stably supported.

According to the invention of claim 4, since the strength of the fitting protrusion is increased by the reinforcing ribs, even when the connector is reduced in size, the plug connector and the receptacle connector can be firmly and firmly connected, and unintentional mounting of the plug connector can be achieved. Even if the operation is performed, breakage of the fitting protrusion can be prevented.

The reinforcing rib does not interfere with the electric wire having a circular cross-sectional phenomenon since the reinforcing rib is shaped to gradually reduce the amount of protrusion from the fitting protrusion as it is directed from the opposing face side to the plug connector side in the receptacle insulator. Therefore, even when the connector is downsized (miniaturized space for electric wire) and the wire diameter is increased, the wire can be stored in the wire accommodation space without interfering with the reinforcing rib.

According to the invention of claim 5, since the contact portion of the plug is composed of two plates, the rigidity of the contact portion is secured and the receptacle contact and the receptacle contact are secured even if the thickness of the plug contact becomes thin due to the reduction in size and area of the connector. Deformation can be prevented at the time of installation, for example. In addition, since the contact portion is increased in thickness, the amount of displacement of the elastic deformation portion of the receptacle contact can be secured, thereby increasing contact reliability.

When the plug connector is made low in size, it is difficult for the operator to hold the plug connector, so that the operator may pull out the plug connector from the receptacle connector forcibly by pulling up the wire, resulting in damage to the plug connector or cutting of the wire.

However, even in such a case, as in the invention described in claim 6, if a jig insertion portion capable of inserting a part of the jig into the plug insulator is formed, the jig can be used to easily detach the plug connector without damaging it from the receptacle connector. have.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which looked at the connection state of the plug connector and the receptacle connector of one Embodiment of this invention from the oblique upper direction from the front.
Fig. 2 is a perspective view of the plug connector and the receptacle connector separated from an oblique view from above.
3 is a front view of a connection state of a plug connector and a receptacle connector.
4 is a front view of a connected state of a plug connector and a receptacle connector.
5 is a cross-sectional view taken along the line VV of FIG. 4.
6 is a perspective view similar to FIG. 5 in a state where the plug connector and the receptacle connector are separated.
Fig. 7 is an exploded perspective view seen obliquely from above from behind the plug connector.
8 is an exploded perspective view seen obliquely downward from the front of the plug connector;
9 is a bottom view of the plug insulator.
10 is a bottom view of the plug connector.
FIG. 11 is a cross-sectional view taken along the line VI-XI of FIG. 10.
12 is an exploded perspective view as viewed obliquely from above in front of the receptacle insulator.
Fig. 13 is a plan view of the receptacle connector when the elastic deformation portion is free.
14 is a cross-sectional view taken along the line XIV-XIV of FIG. 13.
FIG. 15 is a cross-sectional view taken along the line XV-XV of FIG. 13.
16 is a perspective view of a jig.
It is a perspective view at the time of attaching a jig to a connector from behind.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described, referring an accompanying drawing. In addition, the direction of back, front, bottom, and left and right in the following description is based on the arrow direction in a figure.

The connector 10 of the present embodiment is composed of a plug connector 20 and a receptacle connector 70 that can be connected and separated from each other. For example, a mobile phone (portable terminal), a personal digital assistant (PDA), and other information It is a low-profile connector having a height of about 1 mm for electrically connecting the component parts (for example, a speaker, a microphone, a vibration motor) built into the portable terminal and the circuit board 110.

First, the plug connector 20 will be mainly described with reference to FIGS. 9 to 11.

The plug connector 20 includes a plug insulator 21, a pair of cables 40, and a pair of plug contacts 50.

The plug insulator 21 is a member having a substantially rectangular parallelepiped shape which is left-right symmetrical and front-back symmetrical by injection molding an insulating synthetic resin material (for example, polycarbonate, nylon, polyphenylene sulfate, LCP, etc.). As shown in the drawing, at both front and rear edges of the lower surface of the ceiling portion 22 constituting the upper end portion of the plug insulator 21, wall portions 23 extending in the left and right directions protrude downward, and the lower end portion of the wall portion 23. In the center portion of the engaging projection 24 is provided to protrude downward. A pair of left and right wire support holes 25 are formed in the front wall portion 23 as through holes, and a pair of left and right jig recesses are formed on the front surface of the front wall portion 23 and the rear surface of the rear wall portion 23. The jig insertion portion 20 is provided concave. Slits 27 are formed at the left and right ends of the wall portion 23, and elastic pieces 28 are formed on the side of the slit 27 so as to be elastically deformable in the left and right direction and have hooks 29 at their lower ends. In the vicinity of the four corners of the ceiling 22, a total of four first holding holes 31 are formed as through holes extending in the vertical direction, and the left and right sides of the first holding holes 31 are formed as four in a circle. Two sets of second holding holes 32 (eight in total) are formed as through holes extending in the vertical direction. In addition, outside the left and right first holding holes 31, a pair of left and right third holding holes 33 forming a rectangular shape are formed as through holes extending in the vertical direction.

The partition wall 34 extending in the front-rear direction is provided in the center part of the lower and left-right direction of the ceiling part 22, and protrudes. Both left and right sides of the partition wall 34 in the lower surface of the second retaining hole 32 are circular arc surfaces 35 which are concentric with the wire supporting holes 25 positioned forward and backward and achieve the same curvature. The part connected to the circular arc surface 35 of the lower surface is C-shaped surface 36 which forms an approximately C shape from the bottom surface. Moreover, the part located on the outer side of the left and right C-shaped surfaces in the lower surface of the ceiling part 22 is the fitting recessed part 38 (located upward) which is a recess longer than C-shaped surface 36, and is fitted The fitting holder 39 (located at the lower end), which is one step shallower than the part 38, is provided.

The pair of left and right cables 40 covers the surface of the core wire (stranded wire or single wire) 41 with a tubular insulator 42. The insulator 42 is the same as the wire support hole 25 and the circular arc surface 35 of the plug insulator 21, and is a cylindrical member of approximately the same curvature. Although not shown, one end (rear end) of the core wire 41 is connected to components (for example, a speaker, a microphone, a vibration motor, and a battery) built in the information portable terminal.

A pair of plug contacts 50 forming a symmetrical shape with each other is formed by molding a thin plate of a copper alloy (for example, lean bronze, beryllium, titanium copper) or a colosone copper alloy to form a shape shown by stamping, After plating is formed on the surface by nickel plating, gold plating is performed.

As shown in the drawing, the plug contact 50 extends in the front-rear direction and at the same time the first contact plate of plate shape (plate thickness 0-12mm) orthogonal to the plane (horizontal plane in the figure) parallel to the plug insulator 21 ( 51 and the second contact, which is connected to the lower end of the bent portion 52 which extends downward from the central portion of the upper surface of the first contact plate 51 and faces downward and is parallel to the first contact plate 51. It has a plate 53. The opposing surfaces of the first contact plate 51 and the second contact plate 53 are separated from each other by a small distance from each other (may be in contact with each other), and the first contact plate 51 and the second contact plate 53 are connected to the contact portion 54. ).

The front and rear ends of the second contact plate 53 extend toward the other plug contact 80 while being curved in plan view, and a connecting portion 56 whose upper surface is located above the first contact plate 51 is provided. It is provided, the engaging projection 57 is protruded on the upper surface of the connecting portion 56.

From the lower half of the front-rear connection part 56, the connection part 59 which extends toward the other plug contact 50 after bending in the direction which approaches each other extends. The upper part of each connection part 59 is comprised by the left and right pair of press-contact pieces 60, and the retention hook 61 protrudes in the end surface of each connection part 59. As shown in FIG.

The left and right cables 40 and the plug contacts 50 are integrated with the plug insulator 21 by being fixed to the bottom of the plug insulator 21.

To fix the cable 40 and the plug contact 50 to the plug insulator 21, first, the front end portion of the left and right cables 40 from the wire support hole 25 of the rear wall portion 23 of the plug insulator 21 The left and right cables 40 are temporarily held at the bottom of the plug insulator 21 by fitting them into the 35 and inserting them into the wire support holes 25 of the front wall portion 23. Subsequently, the first contact plate 51 of the plug contact 50 is fitted with the corresponding fitting retainer of the plug insulator 21 by moving the left and right plug contacts 50 from the lower side to the lower surface side (upper side) of the plug insulator 21. The front and rear connecting portions 56 are fitted to the fitting recesses 38 so that at least a part thereof is parallel to the adjacent wall portion 23 in the lateral direction, and the front and rear connecting portions 59 are C-shaped. 36 and the circular arc surface 35 are fitted to the receiving recess 37 which is a space which is created between the front and rear wall portions 23.

Then, by moving the left and right plug contacts 50 further upward, the bent portion 52 is fitted to the corresponding third holding holes 33, and the engaging projections 37 are fitted to the corresponding first holding holes 31. If the upper end of each press-contact piece 60 is fitted into the corresponding second holding hole 32, each retaining hook 61 penetrates into the partition wall 34 (see FIGS. 5 and 6). The left and right plug contacts 50 are fixed to the plug insulator 21. In addition, when the left and right plug contacts 50 are fixed to the bottom of the plug insulator 21, the left and right contact pieces 60 of the connecting portions 59 split the corresponding portions of the corresponding insulator 420 into the insulator 42. The vicinity of one end (front end) of the core wire 41 to be positioned is pinched from the left and the right (see Figs. 5 and 6.) Therefore, the left and right plug contacts 50 and the core wire 51 are firmly in contact with each other. 40 is completely fixed to the plug insulator 21 via the plug contact 50.

Next, the receptacle connector 70 will be mainly described with reference to FIGS. 12 to 15. The receptacle connector 70 includes a receptacle insulator 71 and a pair of receptacle contacts 90.

The receptacle insulator 71 is injection-molded with an insulating and heat-resistant synthetic resin material (e.g., nylon, liquid crystal polymer, and polyphenylene sulfate), and is formed in a substantially rectangular shape in front and rear symmetry and in a symmetrical plane. It is absent.

Engaging recesses 73 are formed in the central portions of the front and rear edge portions of the bottom plate portion 72 of the receptacle insulator 71. Side wall 74 is protruded upward from the left and right both ends of the receptacle insulator 71, and a pair of left and right locking projections 75 protrude from the opposing surface of the left and right side walls 74. . Further, a narrowing recess 76 having a narrower width than the side wall 74 (base plate portion 72) is provided in the center portion of the upper surface of the side wall 74 downwardly. In addition, a pair of front and rear contact holding protrusions 77 protrude from the left and right ends of the receptacle insulator 71, and the upper surface of the front and rear contact holding protrusions 77 and the opposing surface of the front and rear contact holding protrusions 77 are provided. The upper grooves 78 and the opposing grooves 79 are respectively formed in the upper grooves 78 and the opposing grooves 79 at the left and right ends thereof, respectively, as components of the fixed grooves.

On the upper surface of the bottom plate portion 72, a pair of left and right fitting protrusions 81 which face each other with a gap between the left and right right walls 74 and having a substantially c-shaped cross section protrude upward. The space between the side walls 74 facing each other and the portions except the front and rear ends of the fitting protrusion 81 is connected to the recess 82 for the receptacle contact to accommodate the elastic deformation portion 96 of the receptacle contact 90. The space between the side walls 74 facing each other and the front and rear ends of the fitting protrusion 81 is the same as the thickness of the contact portion 54 of the plug contact 50 (but the upper end is tapered). As a result, the plug contact recesses (accommodating recesses) 83, which are wider than the thickness of the contact portion 54, are provided. In addition, the reinforcing rib 84 connected to the opposing surface of the left and right fitting projections 81 on the upper surface of the bottom plate portion 72 is directed upward from the bottom plate portion 72 side. It is a cross-sectional shape that gradually reduces the amount of protrusion in the left and right directions. In addition, the wire receiving space 85 is provided between the left and right reinforcement ribs 84.

The pair of receptacle contacts 90 which form a symmetrical shape with each other is formed by stamping a thin sheet of copper alloy (for example, lean bronze, beryllium copper, titanium copper) or corson-based copper alloy having spring elasticity by stamping it into an illustrated shape. After the base was formed with nickel plating on the surface, gold plating was performed.

The receptacle contact 90 includes a fixing portion 92 extending upward from a tail portion 91 forming a substantially horizontal plate, and an elastic deformation portion 90 extending from the upper portion of the fixing portion 92 toward the receptacle contact 90. Have The fixing part 92 has a pair of support pieces 93 at both left and right sides thereof, and also has a retaining hook 94 just below the support piece 93 at both sides. The elastic deformation part 96 is the connection base 97 which extends substantially horizontally from the upper part of the fixing part 92, and the granular piece which extended upward, returning from the end surface of the connection base 97 to the fixing part 92 side. An upper portion 100 and a free end 101 extending obliquely upward from the distal end of the granular piece 100, and the connecting portion and the granular piece 100 of the connecting base 97 and the hanging piece 98 are provided. And the two connecting portions of the free terminal 101 are the contact protrusions 102 and 103, respectively. Thus, the cross-sectional shape of the elastic deformation part 96 is substantially U-shaped, and the contact part 54 makes the left-right spacing of the contact protrusion part 102 and the contact protrusion part 103 when the elastic deformation part 96 is free. Slightly narrower than (right and left dimensions). In addition, as shown in the figure, the slit 104 is formed in the width direction center part of the elastic deformation part 96 of each receptacle contact 90. As shown in FIG.

The pair of receptacle contacts 90 are attached to the side walls 74 of the receptacle insulator 71 opposite to each other and side by side in the horizontal direction. Specifically, each receptacle contact 90 is positioned directly above the corresponding end of the receptacle insulator 71 and then moved downward to position the elastic deformation portion 96 in the corresponding recessed recess 76. At the same time, the tail portion 91 and the fixing portion 92 are inserted between the front and rear opposing grooves 79. When the lower surface of the front and rear support pieces 93 comes in contact with the bottom surface of the corresponding upper groove 78, the front and rear retaining hooks 94 dig into the surface of the corresponding opposing groove 79 (see FIG. 15). The fixing portions 92 of the receptacle contacts 90 are fixed to both left and right ends of the receptacle insulator 71. Then, as shown in FIG. 14, the elastic deformation portion 86 of each receptacle contact 90 is free from the receptacle insulator 71 (base plate portion 72, side wall portion 74, fitting protrusion 81). It is accommodated in the recessed portion 82 for receptacle contact in a state.

After the receptacle connector 70 is formed by integrating the receptacle insulator 71 and the receptacle contact 90 in this manner, the upper surface between the reinforcing ribs 84 of the bottom plate portion 72 is sucked by an adsorption nozzle or the like (not shown). Each tail portion 91 protruding onto the circuit board 11 and projecting on the bottom surface of the receptacle insulator 71 is provided with a signal pattern (not shown) of the circuit board 110 (see FIGS. 5 and 6). Is soldered to.

To couple the plug connector 20 and the receptacle connector 70, first, the plug connector 20 and the receptacle connector 70 are in the posture shown in FIG. 2, and the plug insulator 21 is maintained as shown in FIG. Move downward to the position shown in the figure. Then, since the contact portion 54 of the plug connector 50 is guided by contacting the upper end portion (tail portion) of the corresponding plug contact recess 83, the lower portion of the left and right contact portions 54 moves further downward. It contacts the opening part of the left and right receptacle contact 90 (elastic deformation part 96) by the shape shown in FIG. At this time, if the plug connector 20 is further moved downward, the protrusion 54 is elastic without forcibly elastically deforming the corresponding elastic deformation portion 96 because the upper opening of the elastic deformation portion 96 is a tail phenomenon. It fits smoothly inside the deformable portion 96 (does not buckle and deform the receptacle connector 90), and the plug connector 20 and the receptacle connector 70 as shown in Figs. Is fully connected. Then, as shown in FIG. 5, the hanging piece 98 is elastically deformed toward the side wall 74 and the granular piece 100 is elastically deformed to the fitting protrusion 81 side (with the fitting protrusion 81). Without contact), the free end portion 101 and the contact protrusion 103 are elastically sandwiched on both side surfaces of the contact portion 54. Accordingly, since the corresponding plug contact 50 and the receptacle contact 90 are electrically connected to each other, the cable 40 (sticker, microphone, vibration motor, battery, etc.) is connected through the plug contact 50 and the receptacle contact 90. The component part) and the circuit board 110 are electrically connected to each other. In addition, the front and rear ends of the left and right contact portions 54 are fitted in a narrower portion than the upper end taper portion of the corresponding plug contact recess 83, so that the contact portion 54 is recessed by the plug contact recess 83. Since the position is regulated, the contact performance between the plug contact 50 and the receptacle contact 90 is maintained even when the plug connector 20 is subjected to an external force.

In order to release the conduction state between the cable 40 and the circuit board 110, the engagement relationship between the hooking hooks 29 and the corresponding hooking protrusions 75 is applied by applying upward movement force to the plug connector 20. The plug connector 20 may be detached from the receptacle connector 70 in a state where it is released.

However, since the plug connector 20 of this embodiment is extremely small (each dimension of front, rear, left and right, and top and bottom is small), it is difficult for an operator to hold the plug connector 20 by hand. In this case, therefore, the jig 115 shown in Figs. 16 and 17 is used. The jig 115 is made of metal or resin, and is provided with a noise piece 116 held by a worker and a push end portion provided at a lower end portion of the noise piece 116, the lower surface of which is a flat upper contact surface 117 ( 119 extending downward from the pressing end 118 and the front side of the side contact surface 120, which is a drooping portion 119 having a flat side contact surface 120 orthogonal to the upper contact surface 117. Protrudes from the front direction, and has a pair of left and right insertion protrusions 121 whose cross-sectional shape is substantially the same as that of the jig recess 26. At the lower edge of the side contact surface 120, a semicircular recess 122 having a pair of left and right semicircular shapes (its diameter is slightly larger than the insulator 42) is recessed.

The jig 115 is used by being inserted into the connector 10 from the rear, for example, as shown in FIG. In this case, the upper contact surface 117 of the pressing end 118 is placed on the rear end of the upper surface of the plug insulator 21 with two semicircular recesses 122 coated on two insulators 42, respectively. The side contact surface 120 of the drooping portion 119 is brought into contact with the rear surface of the rear wall portion 23. Then, the left and right insertion protrusions 121 are fitted into the pair of jig recesses 26 on the rear surface of the plug insulator 21, respectively, so that the jig 115 is held by the operator while holding the noise piece 116. You can raise it upwards. Then, the upward movement force applied to the jig 115 is efficiently transmitted from the upper contact surface 117, the side contact surface 120, and the pair of insertion protrusions 121 to the plug insulator 21. ) May be attached to the front of the connector 10, and in this case, the upper contact surface 117 of the pressing end 118 is placed on the front end of the upper surface of the plug insulator 21 and hanged. The side contact surface 120 of the part 119 is used in contact with the front surface of the wall part 23 of the front side.

In addition, a pair of parts corresponding to the jig 115 is provided, and an upper end portion of a part corresponding to the noise piece 116 of both parts is coupled to each other, and this coupling part (and the noise piece 116) is elastically deformable. Jig (not shown) may be used. In this case, by inserting each insertion protrusion 121 into the jig recess 26 of the connector 10 by using the elastic force of the engaging portion, the plug insulator 21 is sandwiched from the front and rear by the jig.

In the present embodiment described above, the receptacle contact 90 elastically deforms the elastically sandwiching the contact portion 54 (the first contact plate 51, the second contact plate 53) of the plug contact 50 ( 96, the contact portion of the plug contact 50 with the receptacle contact 90 even when the receptacle contact 90 is downsized due to the reduction in size of the connector 10 (simplification of the upper and lower dimensions). (54) can be surely contacted.

In addition, since the elastic deformation portion 96 of the receptacle contact 90 extends in the left and right direction, the connector 10 may be formed in such a manner that the elastic deformation can be easily made (to secure the elastic force and the deformation amount) by lengthening the length in the left and right directions. ), Even if the height of the receptacle contact 90 (elastic deformation portion 96) is low, the influence on the elastic deformation force of the elastic deformation portion 96 is small.

Since the contact portion 54 of the plug contact 50 is composed of two pieces, the rigidity of the contact portion 54 is secured and the receptacle contact 90 is secured even though the thickness of the plug contact 50 is 1.12 mm. Deformation can be prevented in connection with the. In addition, since the thickness of the contact portion 54 increases, the amount of displacement of the elastic deformation portion 96 of the receptacle contact 90 is secured, thereby increasing the contact reliability.

Moreover, since the step part of the front-back direction is formed between the contact part 54 and the connection part 56 of the plug contact 50, and the wall part 23 of the plug insulator 21 is located in this step part, the wall part 23 It is possible to increase the plate thickness (front and rear dimensions).

Therefore, even when the plug connector 20 is reduced in size and size, the mechanical strength of the plug insulator 21 and the cable 40 support effect by the wire support hole 25 can be strengthened. In addition, when the plug connector 20 and the receptacle connector 70 are mounted, the fitting protrusion 81 of the receptacle insulator 71 fits into the fitting recess 38 of the plug insulator 21. Even if an external force is unexpectedly applied to the back or the like, the fitting concave portion 38 and the fitting protrusion 81 can reliably prevent separation of the plug connector 20 and the receptacle connector 70 in the horizontal direction. Furthermore, since the fitting protrusion 81 is provided to the receptacle insulator 71 so as to protrude, the fitting protrusion 81 is fitted to the fitting recess 38 on the plug insulator 21 side. The upper and lower dimensions of the whole part 10) do not become large. Thus, since the fitting protrusion 81 is fitted to the fitting recess 38 while improving the mechanical strength of the plug insulator 21, even when the connector 10 is reduced in size, the plug connector 20 And the receptacle connector 70 can be firmly and firmly connected.

In addition, since the fitting recess 38 is enlarged in the front-rear direction (width direction of the receptacle contact 90) while providing the step area, the fitting recess 38 is enlarged in the fitting portion 38. The width of the receptacle contact 90 fitted with respect to can be made large. For this reason, even when the connector 10 is formed to have a large area, a decrease in the elastic force of the receptacle contact 90 can be prevented.

In the present embodiment, the contact portion 54 has a two-plate structure of the first contact plate 51 and the second contact plate 53 to increase its mechanical strength and to fit the protrusions by the reinforcing ribs 84. The mechanical strength of the 81 is set to be high, and the connector 10 is fitted because the engagement protrusion 24 of the plug insulator 21 is fitted to the engagement recess 73 of the receptacle insulator 71. Even in the case of low magnification, the plug connector 20 and the receptacle connector 70 can be firmly and firmly connected. Furthermore, since the up and down dimension of the plug connector 20 is lengthened by providing the engaging protrusion 24, the engaging protrusion 24 fits into the engaging recess 73 of the receptacle insulator 71. The fitting protrusion 24 does not prevent the low magnification of the connector 10 as a whole. Moreover, since the height of the wall part 23 is enlarged by providing the engagement protrusion part 24, the wire support hole 25 of a large diameter can be formed also in the plug connector 20 of the low double. Therefore, the cable 40 with a large diameter can be used, and the cable 40 can be stably supported.

In addition, since the amount of protrusion from the fitting protrusion 81 gradually decreases as the reinforcing rib 84 is directed from below, the reinforcing rib 84 is connected to the cable 40 (insulator) in the wire receiving space 85. (42)) is difficult to interfere with. Therefore, even in the case where the connector 10 is downsized (the front space 85 is downsized) and the diameter of the cable 40 is increased, the cable 40 is reinforced with the wire receiving space 85. It can be stored without interfering with 84.

As mentioned above, although this invention was demonstrated based on the said embodiment, this invention can be practiced, implementing various deformation | transformation.

For example, even if the contact portion 54 of the plug contact 50 has a single structure by the first contact plate 51 or only the second contact plate 53 or a plurality of structures of three or more sheets, do.

Further, when the contact portion 54 is held on the surface of the contact portion 54 by the contact protrusion 102 and the contact protrusion 103 of the receptacle contact 90, the contact protrusion 102 and the contact protrusion 103 are respectively hanged from below. You may form a matching protrusion. In this way, when the plug connector 20 and the receptacle connector 70 are attached, the plug contact 50 and the receptacle contact 90 can be connected more reliably, and a cleat feeling can be obtained. In addition, at least one of the plug connector 20 and the receptacle connector 70 has a shape for obtaining a concentrated load upon contact with the other contact (for example, on the surface of the contact portion 54 or the elastic deformation portion 96). You may form the formed single micro convex part and a pair of micro convex parts which formed the recess between them.

In addition, the slit 27 may be omitted from the plug insulator 21.

The jig recess 26 may be deformed into a hole penetrating the wall 23.

10: connector 20: plug connector
21: plug insulator 22: the ceiling
23: wall portion 24: engaging protrusion
25: wire support hole 26: jig recess (jig insertion part)
27: slit 28: elastic piece
29: hook hook 31: the first maintenance hole
32: 2nd maintenance hole 33: 3rd maintenance hole
34: partition wall 35: circular surface
36: C surface 37: receiving recess
38: fitting recess 39: fitting holding portion
40: cable (wire) 41: core wire
42: insulator 50: plug contact
51: first contact plate 52: bent portion
53: second contact plate 54: contact portion
56: connection portion 57: the locking projection
59 connection part 60 press contact piece
61: retaining hook 70: receptacle connector
71: receptacle insulator 72: bottom plate
73: engaging recess 74: side wall
75: locking projection 76: the recess
77: contact holding protrusion 78: upper groove (fixed groove)
79: opposing groove (fixed groove) 81: fitting protrusion
82: recessed portion for receptacle contact
83: recess for plug contact (accommodating recess)
84: reinforcing rib 85: wire receiving space
90: receptacle contact 91: tail portion
92 fixing part 93 supporting part
94: retention hook 96: elastic deformation
97: Contribution Donation 98: Hanging Out
99: horizontal piece 100: granular piece
101: free end 102, 103: contact protrusion
104: slit 110: circuit board
115: jig 116: noise piece
117: upper contact surface 118: push end
119: sagging part 120: side contact surface
121: insertion protrusion 122: semi-circular recess

Claims (6)

A receptacle connector having a receptacle insulator and a pair of metal receptacle contacts supported on the receptacle insulator in a state parallel to one direction and mounted on a circuit board;
A plug insulator, a pair of metal plug contacts supported in parallel with said one direction to said plug insulator, and a pair of wires extending in a direction perpendicular to said one direction in which one end thereof is connected to each plug contact, respectively; A connector comprising a plug connector that can be attached to and detached from a receptacle connector, and comprising:
The plug contact is a contact portion extending in the one direction and in a direction orthogonal to the opposite direction of the plug connector and the receptacle connector, a pair of connecting portions extending from the contact portion toward the other plug contact side, and close to each other from the pair of connecting portions Having a pair of connecting portions which extend in the direction of loss and then toward the other side of the plug contact and which connect with the wires,
A pair of fitting retainers for fitting and holding the contact portion on an opposing surface of the plug insulator with the receptacle insulator; a receiving recess positioned between the pair of fitting retaining portions and receiving the connecting portion; And a wall portion having a pair of wire support holes adjacent to the receiving recess and simultaneously extending in one direction with the connecting portion and extending toward the receptacle connector to support the wire,
The receptacle contact extends from the fixed portion and the receptacle contact side to the other receptacle contact side, and at the same time the cross section opened by the plug connector side has a U-shaped portion and opposes the U-shaped portion in a free state. The one-way spacing of the inner surface has an elastic deformation portion narrower than the dimension of the one-direction of the contact portion,
A pair of fixing grooves which fit and hold the fixing portion on the opposing surface of the plug connector of the receptacle insulator, and a pair of contact recesses positioned between the pair of fixing grooves to elastically deform the elastic deformation portion. And a protruding portion between the pair of concave portions for contact, toward the plug connector side, opposed to the free end portion of the elastic deformation portion and the one direction, and inserted into the fitting concave portion when the plug connector is attached to the receptacle connector. Fitting projections,
And a wire accommodation space capable of receiving the pair of wires formed between the pair of fitting protrusions. The method of claim 1,
And a receiving recess formed on an opposite surface of the receptacle insulator from a plug connector, extending in a direction parallel to the contact recess and the wire, and capable of hanging or peeling the contact portion. The method according to claim 1 or 2,
Forming an engaging protrusion at the wall portion of the plug insulator at an end of the receptacle connector side;
And a mating recess in the receptacle insulator that receives the mating protrusion when the plug connector is attached to the receptacle connector. The method according to claim 1 or 2,
The cross-sectional shape of the wire is circular,
The one-way protrusion amount from the fitting protrusion is gradually connected to the fitting protrusion of the receptacle insulator on the opposite side of the plug connector in the wire receiving space and toward the plug connector side from the opposite side. Connector with protruding reinforcing ribs. The method of claim 4, wherein
And said contact portion of said plug contact is a structure formed of two plates constituted by bending one metal plate. The method of claim 5, wherein
And a jig insertion part which is capable of inserting a part of a jig into and out of the plug insulator.

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