JPH0722469U - Pressure welding joint connector - Google Patents

Abstract

(57) [Abstract] [Purpose] A pressure-welding joint connector 1 capable of securely pressing the electric wire 14 to the holder 12 by the cover 11.
Provide 0. [Structure] A cover 11 having a top plate portion 11a and a side plate portion 11b extending from the top plate portion 11a is provided. Cover 1
1, a reinforcement portion 11R extending from the top plate portion 11a and the side plate portion 11b is integrally formed. The reinforcing portion 11R can be introduced into the electric wire introducing space D2 of the holder 12. [Effect] The reinforcing portion 11R can reliably prevent the deformation of the cover 11. Further, since the reinforcing portion 11R is introduced into the introduction space D3, no extra space is needed. In addition, since the reinforcing portion 11R pushes the extra wire length portion 14a toward the holder 12, the electric wire 1 is more firmly fixed.
4 can be held in the holder 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pressure contact joint connector, and more particularly, to a pressure contact joint connector having a temporary locking portion for temporarily fixing an extra length portion of an electric wire to be pressed against a pressure contact terminal to a holder.

[0002]

[Prior art]

 In general, this type of pressure contact joint connector is capable of branch connection of two circuits or more at the same time, and is particularly used as a terminal for a weak current for wiring such as a wire harness of an automobile. As such a pressure contact joint connector, the applicant of the present invention has proposed a pressure contact joint connector capable of reliably temporarily locking even different-sized electric wires (Japanese Patent Application No. 4-53595).

In the configuration, as shown in FIG. 6, the cover 110 of the press-joint joint connector is formed in a U-shaped cross section, and the lower surface of each of the side plates 110b and 110c of the cover 110 allows the provision of the temporary locking portion 122. The extra length portion 140a of the electric wire 140 is pressed on the outside.

[0004]

[Problems to be solved by the device]

 However, in the configuration of FIG. 6 described above, since the side plate 110b is simply provided on the cover 110, the strength of the side plate 110b cannot be sufficiently secured. Therefore, when the side plate 110b receives the force acting on the extra length portion 140a of the electric wire 140 at the time of pressure contact, the side plate 110b is deformed in the direction of being detached from the holder 120 as shown by the chain double-dashed line in FIG. There was a problem that the side plate 110b which was deformed during the pressure contact might be damaged.

Further, even after the pressure contact, the side plate 110b expands due to the eccentricity of the electric wire, which makes it impossible to reliably fix the electric wire. It may be possible to increase the thickness of the cover 110 in order to solve the above-mentioned problem, but in that case, there is a problem that the entire press-welding joint connector becomes large, and the extra material is required. However, there was a problem that the cost increased.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a press contact joint connector capable of reliably pressing an electric wire to a holder by a cover.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the pressure-joint joint connector of the present invention is provided at the main body part that divides the pushing space into which the middle part of the wire is pushed from above, and on both sides of the main body part, and the upper end is opened. A holder that includes a temporary fixing part that temporarily fixes the excess length of the wire via the wire introduction space, and that can be locked while the wire to be pressure-welded faces the pressing space, and the holder carried by the holder The press-connecting terminal that defines the wire press-fitting groove that holds the middle part of the wire to be pushed into the top, the top plate that faces the top of the holder, and both sides of the top plate are formed. The side plate part that can be pressed downward on the outside of the part, and the longitudinal direction of the wire that is integrally formed on the lower surface of the top plate part of the cover and the inner surface of the side plate part and is temporarily fixed in a state where it can be introduced into the introduction space. Including a reinforcement extending along It is characterized by having a cover that can be attached to the holder.

[0008]

[Action]

 According to the crimping joint connector of the present invention, the reinforcing portion integrally formed on the lower surface of the top plate portion of the cover and the inner surface of the side plate portion is provided along the longitudinal direction of the wire temporarily fixed so that it can be introduced into the introducing space. Since it extends, the force to open the side plate portion of the cover in the pressure welding step is absorbed by the reinforcing portion. Further, when the reinforcing portion is introduced into the introduction space, the extra length of the wire is pushed toward the holder from the opening of the temporary locking portion.

[0009]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a partially broken exploded perspective view showing an essential part of a pressure welding joint connector according to an embodiment of the present invention, FIG. 2 is a schematic perspective view of the pressure welding joint connector, and FIG. FIG. 4 is a bottom view of the cover of the joint connector, FIG. 4 is a schematic cross-sectional view showing a main part of the temporary locking portion of the above pressure-welding joint connector, and FIG. 5 is a cross-sectional view of the above-mentioned pressure-welding joint connector.

First, referring to FIGS. 1 and 2, a pressure contact joint connector 10 according to the present embodiment includes a cover 11 and a holder 12 made of resin, and a pressure contact terminal 13 made of a conductive material. . The cover 11 is a molded product having a U-shaped cross section, and has a substantially rectangular top plate portion 11a, side plate portions 11b extending on the longitudinal side portions of the top plate portion 11a, and side plate portions 11b. And an end plate portion 11c extended to the top plate portion 11a.

On the inner surface of the top plate portion 11a, a large number of pressing pieces 11d that hang downward are provided. The pressing piece 11d is for pushing the intermediate portion 14b of the electric wire 14 into the pressure contact terminal 13 in the pressure contact step of the electric wire 14 described later. As well shown in FIG. 3, each pressing piece 11d is formed with a groove d1 for avoiding interference with a blade 13a of a pressure contact terminal 13 described later, and along the arc of the electric wire 14. The pressing surface d2 is formed.

Each of the side plate portions 11b has a recess 11e formed along the longitudinal direction of the top plate portion 11a at the bottom thereof. The recesses 11e are formed with indents 11f arranged in the longitudinal direction with a predetermined space therebetween. The indent 11f is for pushing the electric wire 14 downward. The end plate 11c integrally includes a protrusion 11g that hangs downward from the center and a locking protrusion 11h.

Further, in this embodiment, reinforcing ribs 11R as reinforcing portions are integrally formed on the lower surface of the top plate portion 11a and the inner surface of the side plate portion 11b. The reinforcing ribs 11R extend from both sides of the pressing piece 11d, respectively, and extend along the longitudinal direction of the electric wire 14 that is temporarily fixed in a state in which it can be introduced into the introducing space D2 described later. As well shown in FIG. 5, each reinforcing rib 11R has an inclined surface R1 that inclines downward from the pressing piece 11d toward the side plate portion 11b. A portion extending from the portion 14b to the outside of the holder 12 can be pushed toward the holder 12.

Next, referring to FIGS. 1 and 2, the holder 12 includes a main body 12a having a substantially rectangular shape in a plan view, which faces the top plate 11a of the cover 11, and a longitudinal direction of the main body 12a. And two groups of sandwiching pieces 12b and 12c arranged side by side. Each of the sandwiching piece groups 12b and 12c is arranged in a plurality in a row in the longitudinal direction, and constitutes a temporary locking portion 102 for temporarily fixing the electric wire 14 to be pressed against the pressure contact terminal 13.

As shown in FIG. 1, each of the sandwiching piece groups 12b and 12c includes a sandwiching piece 102a which separates a sandwiching space D1 which sandwiches the electric wire 14 from each other in the longitudinal direction of the main body 12a. It is configured. Further, each sandwiching piece 102b of one sandwiching piece group 12b and each sandwiching piece 102c of the other sandwiching piece group 12c are opposed to each other in the width direction of the main body portion 12a.

Each holding piece 102a is a columnar body having a rectangular cross section, and a substantially arrowhead-shaped projection 102d is formed at the tip of each holding piece 102a. An introduction space D2 for introducing the electric wire 14 into the holding space D1 is defined between the one protrusion 102d and another protrusion 102d adjacent to the one protrusion 102d. As shown in FIG. 4, an inclined surface 22d is formed on the upper portion of each protrusion 102d, and the inclined surface 22d guides the electric wire 14 into the introducing space D2.

The reinforcing rib 11R formed on the cover 11 is set to a size that can be fitted into the introduction space D2 formed between the protrusions 102d and 102d. With reference to FIG. 2, the main body 12a is press-fitted on both sides of the mounting projection 12d (on the side intersecting the longitudinal direction of the main body 12a) with the mounting projection 12d on which the pressure contact terminal 13 is seated at the tip. The holding protrusions 12e and 12f for holding the terminal 13 are provided, and the mounting protrusions 12d and the holding protrusions 12e and 12f separate the pressing space D3 for pushing the intermediate portion 14b of the electric wire 14 in the longitudinal direction. It stands upright.

The pushing space D3 is defined so as to face the pressing piece 11d of the cover 11 in the vertical direction. At the same time, the pushing space D3 communicates with the holding space D1 defined between the holding pieces 102a, 102a of the holding piece groups 12b, 12c in the width direction. In FIG. 2, 12h is a jaw. The jaw portion 12h includes a receiving surface h1 that receives the lower surface of the recess 11e formed in each side plate portion 11b of the cover 11, and a locking portion h2 that is continuous with the receiving surface h1 and that is locked to the outer surface of the side plate portion 11b. Are integrally provided, the cover 11 serves to position the cover 11 in the vertical direction, and the locking portion h2 prevents the side plate portion 11b from expanding when pressure is applied.

As shown in FIG. 1, the pressure contact terminal 13 is formed of a conductive plate material having a blade 13a that is inserted into the pressing space D3. The blade 13a is for sandwiching the core wire of the electric wire 14 in a state where the covering portion of the electric wire 14 is incised, and for electrically connecting the pressure contact terminal 13 and the electric wire 14 to each other. A wire introducing groove 13b is defined between the blade 13a and another blade 13a adjacent to the blade 13a.

Next, the operation of this embodiment will be described. According to the above configuration, as shown in FIGS. 1 and 2, when the electric wire 14 is temporarily fixed to the holder 12 in advance and then the cover 11 is attached to the holder 12 to sandwich the electric wire 14 therebetween. As shown in FIG. 5, the cover 11 is integrally attached to the holder 12 while covering the entire holder 12. At this time, the pressing piece 11d formed on the top plate portion 11a of the cover 11 presses the electric wire 14 in the pressing space D3 downward. Along with this, the indent 11f of the cover 11 holds both ends of the electric wire 14 downward. Further, the reinforcing rib 11R pushes the portion extending from the middle portion 14b of the electric wire 14 to the outside of the holder 12 toward the holder 12.

When the cover 11 is pressed by a pressing device or the like in this state, the pressing piece 11d of the cover 11 is shockedly lowered within a range where the cover 11 is restricted by the flange portion 12h (see FIG. 2). The covering portion of the electric wire 14 in the pushing space D3 is incised by the blade 13a, and the blade 13a comes into contact with the core wire of the electric wire 14 to electrically connect the pressure contact terminal 13 and the electric wire 14.

In the above pressure contact step, when the shocking pressing force of the pressing piece 11d is transmitted to the intermediate portion 14b of the electric wire 14, tension is generated in the electric wire 14 and the cover 11 is deformed upward or sideways. The force to act acts. However, in the press contact joint connector 10 of the present embodiment, the reinforcing ribs 11R integrally formed on the lower surface of the top plate portion 11a of the cover 11 and the inner surface of the side plate portion 11b are temporarily put in a state where they can be introduced into the introduction space D2. Since it extends along the longitudinal direction of the stopped electric wire 14, the force to open the side plate portion 11b of the cover 11 is absorbed by the reinforcing rib 11R. Therefore, according to this embodiment, the deformation of the cover 11 can be reliably prevented.

Further, in the present embodiment, when the pressing piece 11d pushes the intermediate portion 14b of the electric wire 14 into the electric wire press-fitting groove 13b of the press contact terminal 13, the reinforcing rib 11R is introduced into the introducing space D2. Therefore, according to the present embodiment, it is not necessary to provide an extra space when providing the reinforcing rib 11R, so that it is possible to prevent the press-fitting joint connector 10 from increasing in size.

In addition, by introducing the reinforcing rib 11R into the introduction space D2, the extra length portion 14a of the electric wire 14 from the opening portion of the temporary locking portion 102, that is, from the introduction space D2 to the holder 12 is introduced. Since the reinforcing rib 11R can receive an upward force against the pulling of the electric wire 14 in the pressing step, the electric wire 14 can be more firmly held in the holder 12.

Therefore, according to this embodiment, it is possible to provide the press contact joint connector 10 in which the electric wire 14 can be surely pressed to the holder 12 by the cover 11. It is needless to say that the above-described embodiment is merely a preferred specific example of the present invention, and various design changes can be made without changing the gist of the present invention.

[0026]

[Effect of device]

 As described above, according to the pressure contact joint connector of the present invention, the force for opening the side plate portion of the cover is absorbed by the reinforcing portion, so that the cover can be reliably prevented from being deformed. Further, when the pressing piece pushes the middle part of the wire into the wire press-fitting groove of the pressure contact terminal, the reinforcing part is introduced into the introduction space, so that it is not necessary to provide an extra space when providing the reinforcing part. It is possible to prevent the press-fit joint connector from increasing in size.

In addition, when the reinforcing portion is introduced into the introducing space, the extra length portion of the electric wire is pushed toward the holder from the opening portion of the temporary locking portion. As a result of the reinforcing portion being able to receive an upward force against pulling, it becomes easier to more firmly hold the wire in the holder. Therefore, according to the present invention, it is possible to provide a press-contact joint connector which can press the electric wire to the holder reliably by the cover.

[Brief description of drawings]

FIG. 1 is a partially cutaway exploded perspective view showing a main part of a press contact joint connector according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of the press contact joint connector.

FIG. 3 is a bottom view of the cover of the press contact joint connector.

FIG. 4 is a schematic cross-sectional view showing a main part of a temporary locking portion of the press contact joint connector.

FIG. 5 is a cross-sectional view of the press contact joint connector.

FIG. 6 is a cross-sectional view of an insulation displacement joint connector in the development process of the present invention.

[Explanation of symbols]

 10 Pressure Joint Joint Connector 11 Cover 11R Reinforcing Rib (Reinforcing Part) 12 Holder 13 Pressure Contact Terminal 14 Electric Wire 14a Extra Length 14b Midway Part

Claims (1)

[Scope of utility model registration request] 1. A main body part for partitioning a pushing space into which an intermediate part of an electric wire is pushed from above, and an extra length part of the electric wire provided on both side parts of the main body part through an electric wire introducing space having an open upper end. A holder that includes a temporary fixing part that temporarily fixes, and that can hold the wire to be pressure-welded in the pressing space, and a wire press-fit that clamps the middle part of the wire carried by the holder and pushed into the pressing space. A pressure contact terminal for partitioning the groove, a top plate portion facing the upper part of the holder, side plate portions formed on both sides of the top plate portion and capable of pressing the extra length portion of the wire downward outside the temporary fixing portion, and It includes a reinforcing portion that is integrally formed on the lower surface of the top plate portion of the cover and the inner surface of the side plate portion, and that extends along the longitudinal direction of the electric wire that is temporarily fixed in a state where it can be introduced into the introduction space, and is attachable to the holder. Pressure with a cover Joint connector.