JP2002203648A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector with small size, enabled to arrange more contacts in itself, with improved productivity, and to provide a technique of surely connecting electric wire to the connector. SOLUTION: The electric connector comprises a connector main body 1 with an insulation housing 6 having a plurality of contacts 4, terminal parts 2 arranged at the top end part of the connector main body, to be electrically connected to a mate connector, and an electric wire connection parts 3 arranged at the back side of the connector main body, connecting respective solder tabs 5 of the contacts 4 to electric wires 13. The electric wires connection parts 3 have a flat and approximately square-shaped convex part 7 protruding from the insulation housing 6. A plurality of grooves 10 to which, the solder tabs 5 are arranged, are formed on at least one surface A of the convex part 7. Overhangs (protruded pieces) 15, preventing the solder tabs from rising up, are arranged on at least one wall side of the grooves 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connector provided with an electric wire connecting portion to which a plurality of electric wires are connected, and relates to a technique effective for miniaturizing the connector and improving the assemblability.

[0002]

2. Description of the Related Art There is widely known an electrical connector having an electric wire connection portion to which a plurality of electric wires are connected, which has a solder tab at one end of a contact disposed therein. The solder tab is a plate provided at one end of the contact so that an electric wire can be easily and securely soldered to the contact.

[0003] This conventional electrical connector is shown in Figs.
As shown in (1), the solder tabs 305 of the contacts are arranged on the electric wire connection portion 303 of the connector main body 301 on the same plane and in a horizontal line. In addition, when paying attention to the electric wire connection portion 303 in more detail, each solder tab 30
5 are arranged while securing a constant interval X.
This fixed interval X is equal to the distance between the solder tab 305 and the electric wire 3.
In the case where solder is used for connection with the solder joint 13, it is provided to prevent the solder from flowing into another adjacent solder tab 305, and prevents an electrical defect such as a short circuit in the wire connection portion 303.

In the prior art, a large partition wall 315 is provided between the solder tabs 305 as shown in FIG. 18 to prevent solder from flowing into another adjacent solder tab 305. , Miniaturization of connectors,
In addition, as the number of contacts arranged in the connector has increased, there have been some problems to be solved that cannot be solved by the above-described technology.

[0005]

As a first point, in the conventional electric connector, since the solder tabs 305 are arranged on the same plane of the electric wire connection portion 303, each of the solder tabs 3 is required.
During the period 05, it was necessary to secure the above-mentioned constant interval X large. That is, since it is necessary to secure the constant interval X large, there is naturally a limit in reducing the size of the connector 301.

Secondly, when more contacts are provided in the connector, the conventional connector is structured such that the entire width of the wire connection portion 303 is increased, and the solder tabs 305 of the plurality of contacts 304 are connected to the wire connection portion. 303 could not be placed.

Third, since a large number of solder tabs 305 are arranged in one plane, if the size is forcibly reduced, each component becomes smaller, which may hinder the connection work such as soldering. . Also, when manufacturing a connector by the overmolding method, extremely high processing technology is required to accurately arrange the contacts 304 on a mold and then to pour a resin material to manufacture the connector.

The present invention has been made in view of the above points, and aims at reducing the size of a connector while ensuring a sufficient space for soldering between solder tabs, and further increasing the number of contacts inside the connector. An object is to provide an electrical connector that can be arranged. Further, it is another object of the present invention to provide a technique which has good manufacturability and can reliably connect to an electric wire.

[0009]

A first means of the present invention is as follows.
A connector body having an insulating housing in which a plurality of contacts are arranged; a terminal portion located on a distal end side of the connector body and electrically connected to a mating connector; and solder tabs of the plurality of contacts located on a rear end side of the connector body. And an electric wire connection portion for connecting the electric wire, and the electric wire connection portion has a planar substantially rectangular protrusion protruding from the insulating housing, and the protrusion has one surface and the other surface facing each other. The solder tabs of the plurality of contacts have a configuration in which some of the solder tabs are arranged on the one surface and the remaining solder tabs are arranged on the other surface.

[0010] The electric connector of the present invention has a convex portion at the electric wire connection portion, and the solder tabs of the respective contacts are arranged on both sides of the convex portion, so that the spacing required for connection between each solder tab and the electric wire is provided. , And the solder tabs can be densely arranged. Therefore, since the entire width of the wire connection portion can be reduced, it is possible to contribute to downsizing of the connector body.

Further, since the solder tabs are provided on both sides of the electric wire connection portion, more solder tabs can be arranged at the electric wire connection portion. That is, it is possible to arrange more contacts in the connector while securing the space required for soldering between the solder tabs.

[0012] A second means of the present invention provides the convex part in the first means, wherein a plurality of grooves for arranging the solder tab are provided on one surface and the other surface of the convex part, respectively; The protrusion is provided with a slot for guiding a solder tab to be disposed on the other surface from the one surface to the other surface.

[0013] With this configuration, the contacts can be inserted into the connector body in one direction and collectively while the solder tabs are arranged on both surfaces of the convex portion, and the manufacturability of the electrical connector can be improved.

According to a third aspect of the present invention, there is provided a connector body having an insulating housing in which a plurality of contacts are arranged, a terminal portion located on the distal end side of the connector body and electrically connected to a mating connector, and An electric wire connecting portion that is located at an end side and connects each of the solder tabs of the plurality of contacts to an electric wire, the electric wire connecting portion having a substantially rectangular convex portion protruding from the insulating housing; A plurality of grooves for arranging solder tabs are provided on the surface of the groove, one of both side walls of each groove is formed on an inclined wall surface, and the solder tab is arranged along the inclined wall surface.

[0015] With this configuration, the solder tab is obliquely disposed inside the groove, so that the tip of the solder glove can be directly applied to one end of the solder tab. Therefore, the solder tab and the electric wire can be securely joined, and the workability at the electric wire connection part can be improved.

Further, by arranging the solder tabs obliquely, it is possible to reduce the substantially entire width of the solder tab at the electric wire connection portion, and it is possible to further reduce the size of the electrical connector.

According to a fourth aspect of the present invention, there is provided a connector according to the third aspect, wherein the contact of the connector is provided with a crank-shaped bent portion, and a push-in for inserting the contact into the insulating housing is provided at the bent portion. By providing a structure having a pressing surface that can be brought into contact with the jig, the contact can be smoothly inserted into the insulating housing without distorting the contact, which contributes to improvement in workability and productivity. Can be.

According to a fifth aspect of the present invention, in the connector of the third aspect, the connector is provided with an anchor that can bite into the insulating housing. And the contact is securely held in the connector body without falling off the insulating housing.

According to a sixth aspect of the present invention, there is provided a connector body having an insulating housing in which a plurality of contacts are arranged, a terminal portion located on the distal end side of the connector body and electrically connected to a mating connector; An electric wire connecting portion that is located at an end side and connects each of the solder tabs of the plurality of contacts and the electric wire, the electric wire connecting portion has a planar substantially rectangular convex portion protruding from the housing, and At least one surface is provided with a plurality of grooves for arranging the solder tabs, and at least one side wall of the groove is provided with an overhang (projection piece) for preventing the solder tabs from floating, so that the solder tabs are formed. It is securely fixed in the groove without rising from the wire connection part. Therefore, when more solder tabs are arranged in the electric wire connection portion, it is possible to contribute to prevention of electrical defects such as short circuit and disconnection at the electric wire connection portion due to the lifting of the solder tab.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows Embodiment 1 of the present invention.
3 is a right side view of the electric contactor, and FIG. 5 is a rear side view thereof. 2 and 4,
FIG. 6 is a diagram showing only the connector main body corresponding to each of FIGS. 1, 3, and 5. FIG. 7 is a diagram in which an overhang structure is provided in the groove according to the first embodiment. FIG. 8 is a right side view of a contact in which a solder tab is arranged on one surface of the protrusion according to the first embodiment. FIG. 9 is a right side view of a contact in which a solder tab is arranged on the other surface of the protrusion. FIG. 10 is a plan view showing an anchor of each contact. FIG. 11 is a plan view of an electrical connector according to Embodiment 2 of the present invention. FIG. 12 is a rear view thereof. Further, FIG. 13 is a view showing a soldering operation at the electric wire connection part, and FIG.
FIG. 6 is a diagram showing a conventional soldering operation in relation to No. 3; FIG. 15 is a plan view of an electric contact in which an overhang (projection piece) is provided in a groove of a projection according to the third embodiment of the present invention.
FIG. 16 is a rear view thereof.

<Embodiment 1> An electrical connector according to the present invention has a connector main body 1 having an insulating housing 6 in which a plurality of contacts 4 are arranged, and is electrically connected to a mating connector located on the distal end side of the connector main body 1. A terminal portion 2 and the plurality of contacts 4 located on the rear end side of the connector body 1;
And an electric wire connection portion 3 for connecting each of the solder tabs 5 and the electric wire 13.

The electric wire connecting portion 3 has a substantially rectangular convex portion 7 projecting from the insulating housing 6, and the convex portion 7 has one surface A and the other surface B facing each other.
An electrical connector in which, among the solder tabs 5 of the plurality of contacts 4, some solder tabs 5 are arranged on the one surface A and the remaining solder tabs 5 are arranged on the other surface B.

Hereinafter, the connector body will be described with reference to FIGS. A plurality of tunnel-shaped receiving portions 8 having a length in the front-rear direction of the connector main body 1 are provided inside an insulating housing (hereinafter simply referred to as “housing”) 6 in the connector main body 1 (see FIGS. 2 and 4). ). The receiving portion 8 has a role of arranging the plurality of contacts 4 at fixed positions in the housing 6.

In the terminal portion 2 located on the distal end side of the connector main body 1, the contact portion 9 of the contact 4 protrudes from the tunnel-shaped receiving portion 8 in the housing 6 (see FIG. 3). . The contact portion 9 is a part of the contact 4 that can be electrically connected to the counterpart contact. The details will be described together with the description of the contacts later.

The wire connection portion 3 located on the rear end side of the connector main body 1 is provided with a substantially rectangular projection 7 projecting from the housing 6. The projection 7 has one surface A and the other surface B as shown in FIGS. 3 and 5, and each surface is provided with a groove 10 extending from an end surface C of the projection 7 toward the front. I have. This groove 10 is a groove for arranging the solder tab 5 of the contact 4 in the electric wire connection portion 3.

Here, the groove 10 located on the other surface B is
2 and 6, a slot 11 extending from the end face C of the projection 7 toward the front is provided therein. The slot 11 is necessary for guiding the solder tab 5 to be arranged on the other surface B from the one surface A to the other surface B at the time of manufacturing the electrical connector. The details of the relationship between the solder tabs 5 and the slots 11 will be described together with the description of the contacts described later.

At both edges of each groove 10, grooves 12 are provided so that the edges are cut off as shown in FIGS. The groove 12 is used for the electric wire 1 in the electric wire connection portion 3.
3 has a role to improve sitting.

The arrangement relationship of the grooves 10 in the electric wire connection portion can be understood from FIGS. The arrangement is such that when viewed from the direction of one surface A of the convex portion 7 (see FIG. 2), the convex portions 7 are arranged in a horizontal line in an arrangement of grooves 10 → slots 11 → grooves → slots. When viewed from the side having the end face C of the projection 7 (see FIG. 6), the grooves 10 are arranged in a staggered manner on the end face C. In the groove 10 arranged on the other surface B,
A slot shape 11 extending from one surface A to the other surface B can be seen.

As shown in FIG. 7, each groove 10 in the convex portion 7 may have an overhang structure for preventing the solder tab 5 from floating above the electric wire connection portion 3. The overhang is a pair of protrusions 15 projecting from the upper portions of both wall surfaces of each groove 10 toward the inside of the groove 10, and the interval between the pair of protrusions 15 is the same as that of the solder tab 5.
, And larger than the entire width of the contact 4.

As described above, the overhang (projection piece) 15
Is provided, the solder tab 5 is connected to the electric wire connection portion 3.
It can be securely fixed in the groove without floating. Therefore, when more solder tabs 5 are arranged in the electric wire connection part 3, it is possible to contribute to prevention of electrical defects such as short circuit and disconnection in the electric wire connection part 3 due to the lifting of the solder tab 5. The same effect can be obtained when the overhang (projection piece) 15 is provided on at least one of the wall surfaces of the groove 10.

Next, the plurality of contacts 4 arranged on the contact body 1 will be described with reference to FIGS. The contacts 4 (41, 42) are made up of a contact portion 9, a bent portion 20, an anchor 50, and a solder tab 5, and are manufactured by punching and bending a conductive metal plate (conductive plate). 8 and 9 show the right side surface of the contact.

At the tip of the contact 4 (41, 42),
A contact portion 9 is provided for contacting and electrically connecting with a contact of the other party which fits in the mating connector. This contact 9
Are arranged so as to protrude from the terminal portion 2 of the connector main body 1 while having an additional force outward from the terminal portion 2. This additional force can be provided by bending the plate-shaped contact 4 (41, 42) to one side in advance. In this manner, the contact portion 9 always comes into contact with the counterpart contact (not shown) so as to be pressed against the counterpart contact (not shown), thereby preventing a contact failure or the like at a contact portion with the counterpart contact.

At the rear end of the contact 4 (41, 42),
A solder tab 5 having a flat surface to which the electric wire 13 can be mechanically connected is provided. The solder tabs 5 are arranged on one surface A and the other surface B of the projection 7 in the electric wire connection portion 3, and the electric wires 13 corresponding to the solder tabs 5 of the contacts 4 are joined by soldering. In addition, about arrangement | positioning of the said solder tab 5 in the said wire connection part 3, ie, distribution to one side A and the other side B of the convex part 7,
A description will be given together with the bent portions 20 of the contacts 41 and 42 described below.

First, the bent portion 20 will be described. The bent portion 20 is provided in front of the solder tab 5 and has a crank shape having a plurality of folds in a direction perpendicular to the longitudinal direction of the contacts 41 and 42. As for the contacts 41 and 42 having the bent portions 20, two types of contacts having different steps T in the crank shape are prepared as shown in FIGS. Hereinafter, the contacts 41 and 42 will be described.

The step T of the contact 41 shown in FIG. 8 includes a step T1 formed between the first bend 21 and the second bend 22, counted from the solder tab 5 side, and a third bend 23 and a fourth bend. 24 is formed of a step T2. Also, the step T of the contact 42 shown in FIG.
Is composed of a step T3 formed between the first bend 25 and the second bend 26 counted from the solder tab 5 side, and a step T4 formed between the third bend 27 and the fourth bend 28. .

The contacts 41 and 42 of the steps T2 and T4 have the same size as shown in FIGS. 8 and 9, and the contacts 4 are inserted into the housing 6 at the steps T2 and T4. Pressing surface 30 to which a pressing jig is applied. As for the steps T1 and T3, the sizes of the contacts 41 and 42 are different as shown in the drawings. Specifically, T1 <T3, that is, the contact 42 has a larger step than the contact 41.

The difference between the steps T1 and T3 is described with reference to FIG.
It is very easy to understand. As shown in FIG. 5, the solder tab 5 of the contact 41 is disposed on one surface A of the projection 7. Therefore, the bent portion 2 of the contact 41
At 0, there is no need to make the step T1 large. Further, since the solder tab 5 of the contact 42 is disposed on the other surface B of the convex portion 7, an extra step of approximately the same thickness as the thickness of the slot 11 is required. Therefore, the step T3 is
It is necessary to make the step larger than the step T1.

With this configuration, each contact 41, 42
The pressing jig is pressed against the inside of the housing 6 from the rear side of the housing 6. At this time, the solder tab 5 of the contact 41 is connected to one surface A of the projection 7.
As for the solder tab 5 of the contact 42, the space between the bend 25 and the bend 26 in the contact 42 passes through the slot 11, and the solder tab 5 is guided to the groove 10 provided on the other surface B. Therefore, each contact 4 can be inserted into the housing 6 in one direction from the direction of the end face C of the projection 7 and collectively. Further, since the pressing jig is used to push in, the contact 4 can be smoothly inserted without being distorted.

Next, the anchor 50 provided on the contact 4 will be described. The anchor 50 is provided between the bent portion 20 and the contact portion 9 and at a place where the housing 6 comes into contact with the inner wall of the receiving portion 8. The anchor 50 has a role of preventing the contact 4 from dropping out of the housing 6 after the contact 4 is inserted into the housing 6.

The specific structure is shown in FIG. 10 and is a plate-like body 51 extending from one edge of the contact 4 to the side of the contact, and its entire width is slightly larger than the width of the receiving portion 8. It is formed. An oblique side 52 that can easily bite into the side wall of the housing 6 is disposed at the front of the anchor 50, and a barb 53 having a right-angled end is provided at the rear.

With this configuration, the contacts 4 can be easily inserted into the housing 6 when assembling the connector. After the assembly, the barb 53 of the anchor 50 is hooked on the inner wall of the housing 6, so that the contact 4 does not easily fall off the housing 6.

As described above, of the solder tabs 5 of the plurality of contacts 4, some of the solder tabs 5 are arranged on one surface A, and the remaining solder tabs are mounted on both surfaces of the convex portion 7 of the wire connection portion 3. To place it on the other side B,
The solder tabs can be densely arranged while maintaining a sufficient space X (see FIG. 1) between the solder tabs necessary for connection between the solder tabs and the electric wires.

As described above, since the entire width of the electric wire connection portion can be reduced, the size of the connector body 1 can be reduced. Furthermore, since the solder tab of each contact can be arranged on both surfaces of the electric wire connection portion, more contacts can be arranged on the connector body.

Although the embodiment of the present invention has been described using a male connector, the present invention can be applied not only to a male connector but also to a female connector. In that case, although the shape of the terminal portion 9 and the like in the connector body 1 changes,
This is because the structure of the electric wire connection portion 3 in the female connector can be configured in the same manner as the male connector.

<Embodiment 2> Embodiment 2 relates to an electric connector having substantially the same configuration as that of the electric connector shown in Embodiment 1 and to reduce the size of the contact and the workability at the electric wire connection portion. Technology to improve. Since the configuration is basically the same as that of the first embodiment, the same portions are denoted by the same reference numerals and description thereof will be simplified.

As shown in FIG. 11, the electrical contact includes a connector body 1 having a housing 6 in which a plurality of contacts 4 are arranged, and a terminal portion 2 located on the distal end side of the connector body 1 and electrically connected to a mating connector. And a wire connection portion 3 located on the rear end side of the connector body 1 and connecting each of the solder tabs 5 of the plurality of contacts 4 to a wire (not shown).

In the electric connector, the electric wire connection portion 3 is provided with a convex portion 7 as in the first embodiment, and a plurality of grooves 10 for arranging the solder tabs 5 are provided on the surface of the convex portion 7. . As shown in FIG. 12, at least one of the two wall surfaces of each groove 10 is formed on the inclined wall surface 60, and the solder tab 5 of each contact 4 is arranged along the inclined wall surface 60. This configuration reduces the size of the connector 4,
It is also very suitable for improving the workability at the wire connection part.

The most remarkable feature of the electric connector having this configuration is a method of arranging the solder tab 5 in the electric wire connection portion 3. 12, it can be seen that the solder tabs 5 are obliquely arranged along the inclined wall surface 60 of the V-shaped groove 10 when viewed from the end face C direction of the projection 7 as shown in FIG.

As described above, the effect obtained by arranging the solder tabs 5 obliquely is that the substantially entire width occupied by the solder tabs 5 in the electric wire connection portion 3 can be reduced, so that the width direction of the electric wire connection portion 3 can be reduced. Can be significantly reduced in length. At first glance, by arranging the solder tabs 5 obliquely, it seems that the thickness in the height direction of the electric wire connection portion 3 increases, but the thickness of the electric wire connection portion 3 is sufficiently smaller than the thickness of the contact body 1. ing. That is, even if the thickness of the wire connection portion 3 is increased by arranging the solder tabs 5 obliquely, it does not significantly affect downsizing of the connector main body 1.

That is, in reducing the size of the connector 1,
Even if the thickness of the wire connection portion 3 is slightly increased, it is extremely effective to reduce the entire width of the wire connection portion 3. In this regard, the configuration described in the second embodiment greatly contributes to downsizing of the connector body 1. I can say.

Also, this configuration is composed of the solder tab 5 and the electric wire 1.
Also in the soldering with 3, the configuration is very suitable for improving workability in the connection work between the electric wire 13 and each solder tab 5 and for securely connecting the electric wire and the solder tab.

For reference, the conventional wire connection portion 303
Briefly, the soldering iron 370 cannot be heated sufficiently because the tip of the soldering iron 370 contacts only the electric wire 313 as shown in FIG. That is, in this method, there is a problem that the solder is put on the wire, and furthermore, the wire 313 is detached after the joining, so that the soldering work between the wire 313 and the solder tab 305 is greatly hindered.

In the present invention, the contacts are arranged obliquely as shown in FIG. 13 so that the tip of the soldering iron 70 can contact both the electric wire 13 and the solder tab 5. Therefore, the soldering between the solder tab 5 and the electric wire 13 can be performed efficiently and reliably, the workability of the connection of the electric wire 13 at the electric wire connection portion 3 is improved, and the electric wire 13 and the solder tab 5 are reliably connected at the electric wire connection portion 3. It can be connected.

The above is the second embodiment of the present invention. The method of arranging the solder tabs described in the second embodiment, that is, the method of arranging the solder tabs obliquely in the grooves can be applied to the first embodiment. In this case, an inclined wall surface similar to that of the second embodiment may be provided on the wall surface of each groove 10 in the first embodiment, and a solder tab may be arranged along the inclined wall surface. The inclined wall surface is provided on one side wall of the groove 10 so that the groove width increases toward the surface of the projection 7.

When the method of arranging solder tabs according to the second embodiment is applied to the first embodiment, the size of the connector can be reduced, and the connection between the electric wires and the solder tabs can be reliably performed, as in the second embodiment. The effect of can be obtained.

<Embodiment 3> Embodiment 3 relates to an electric connector having substantially the same configuration as the electric connector shown in Embodiments 1 and 2, and improves the workability of the electric wire connection portion and also improves the electric wire connection. The present invention relates to a technique for securely connecting an electric wire to a part. Since the configuration is basically the same as in the first and second embodiments, the same portions are denoted by the same reference numerals and description thereof will be simplified.

As shown in FIGS. 15 and 16, the electrical contact comprises a connector body 1 having a housing 6 in which a plurality of contacts 4 are arranged, and a terminal portion located at the tip end of the connector body 1 and electrically connected to a mating connector. 2 and an electric wire connection portion 3 located on the rear end side of the connector body 1 and connecting each of the solder tabs 5 of the contacts 4 to an electric wire (not shown).

The electric wire connecting portion 3 of this electric connector has a convex portion 7 as in the first and second embodiments.
Are provided with a plurality of grooves 10 for disposing the solder tabs 5. The feature of the electrical connector shown in the third embodiment is that a groove 1 provided on the surface of the convex portion 7 is provided.
0 is that an overhang structure for preventing the solder tab 5 from floating is provided.

The overhang 15 is formed by a pair of projecting pieces 15 projecting from the upper portions of both wall surfaces of each groove 10 toward the inside of the groove 10.
The distance between the projecting pieces 15 provided on both wall surfaces is smaller than the entire width of the solder tab 5, and
The contact 4 is larger than the entire width. By providing the overhangs (projections) 15 in this manner, the solder tabs 5 are securely fixed in the grooves 10 without being lifted from the wire connection portions 3. Therefore, when more solder tabs 5 are arranged in the electric wire connection part 3, it is possible to contribute to prevention of electrical defects such as short circuit and disconnection in the electric wire connection part 3 due to the lifting of the solder tab 5. The same effect can be obtained even when an overhang (projection) is provided on at least one side surface of the groove 10.

[0060]

As described above, according to the present invention, the size of the connector can be reduced while securing a sufficient space for soldering between the solder tabs, and more contacts can be arranged inside the connector. You can also. Further, according to the present invention, the electric connector has good manufacturability and can be securely connected to an electric wire.

[Brief description of the drawings]

FIG. 1 is a plan view of an electric contactor according to a first embodiment of the present invention.

FIG. 2 is a plan view showing only a connector main body according to the first embodiment of the present invention.

FIG. 3 is a right side view of the electrical connector according to the first embodiment of the present invention.

FIG. 4 is a right side view showing only a connector main body according to the first embodiment of the present invention.

FIG. 5 is a rear rear view of the electrical connector according to the first embodiment of the present invention.

FIG. 6 is a rear rear view showing only a connector main body according to the first embodiment of the present invention;

FIG. 7 is a rear rear view of the electrical contact having an overhang (projection) in the groove according to the first embodiment of the present invention.

FIG. 8 is a diagram showing a contact having a solder tab to be arranged on one surface of the protrusion according to the first embodiment of the present invention;

FIG. 9 is a diagram showing a contact having a solder tab to be arranged on the other surface of the projection according to the first embodiment of the present invention;

FIG. 10 is a plan view showing a contact anchor according to the first embodiment of the present invention;

FIG. 11 is a plan view of an electrical connector according to Embodiment 2 of the present invention.

FIG. 12 is a rear rear view of the electrical connector according to the second embodiment of the present invention.

FIG. 13 is a diagram showing a soldering operation according to the second embodiment of the present invention.

FIG. 14 is a view showing a soldering operation at a wire connection portion of a conventional electric connector.

FIG. 15 is a plan view of an electric contact according to Embodiment 3 of the present invention.

FIG. 16 is a rear rear view of the electrical connector according to Embodiment 3 of the present invention.

FIG. 17 is a plan view showing a conventional electrical connector.

FIG. 18 is a rear rear view showing a conventional electrical connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector body 2 Terminal part 3 Electric wire connection part 4 Contact 5 Solder tab 6 Insulating housing 7 Convex part 8 Reception part X Fixed interval 10 Groove 11 Slot 12 Groove 13 Electric wire 15 Overhang (projection piece) A One surface B The other surface C End face of convex portion 20 Bent portion 21, 22, 23, 24 Bending 25, 26, 27, 28 Bending 30 Pressing surface T Step 41 Contact 42 Contact 50 Anchor 51 Plate-shaped body 52 Oblique side 53 Return 60 Inclined wall surface 70 Solder iron 301 connector body 302 terminal section 303 wire connection section 304 contact 305 solder tab 306 insulating housing 307 convex section 308 receiving section 310 groove 313 electric wire 315 partition wall 370 soldering iron

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5E023 AA04 EE06 FF01 GG11 HH18 5E077 BB01 BB23 DD02 JJ05 JJ21 JJ23

Claims (1)

[Claims] A connector body having an insulating housing in which a plurality of contacts are arranged; a terminal portion located on a distal end side of the connector body and electrically connected to a mating connector; and a plurality of terminal portions located on a rear end side of the connector body. And an electric wire connection part for connecting each of the solder tabs of the contact and the electric wire,
The wire connection portion has a substantially rectangular planar projection projecting from the insulating housing, and at least one surface of the projection is provided with a plurality of grooves for arranging the solder tab,
An electrical connector having an overhang (projecting piece) provided on at least one side wall of the groove to prevent the solder tab from floating.