JP2000331760A - Pressure contact joint connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely insulate inter-terminals positioned adjacently. SOLUTION: A pressure contact joint connector comprises connector housings 50 coupled with each other in a multilayered form, and a plurality of terminal storage rooms 53 are formed on a lower connector housing 50. The plural terminal storage rooms 53 contain a plurality of terminals. The upper part of the terminal storage room 53 is covered with the upper connector housing 50. A carrier 56 connecting the adjacent terminals is partly cut out to form cut spaces 61, into which insulating protruding portions 1 formed on the upper connector housing 50 are inserted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-fit joint connector formed by connecting connector housings in multiple stages.

[0002]

2. Description of the Related Art FIGS. 4 to 11 show such a press-fitting joint connector. FIG. 4 is a perspective view of the connector housing 50 in a state where the terminal assembly 55 has been assembled to the temporary mounting position, and FIG.
5, (B) is a perspective view of the terminal assembly 55, FIG. 6 is a perspective view showing a cutting operation of the carrier portion 56, and FIG. 7 (B) is a cross-sectional view after cutting showing a cutting operation of the carrier portion 56, FIG. 8 is a perspective view of two connector housings 50 showing a connecting operation,
9 is a cross-sectional view showing a connected state of the connector housing 50, FIG. 10 is a cross-sectional view showing a state in which the upper connector housing 50 closes the terminal accommodating chamber 53, and FIG. 11 is a cross-sectional view showing a state in which adjacent terminals 54 are short-circuited. FIG.

In FIGS. 4 to 9, a connector housing 50 has upper and lower connecting surfaces 50a and 50b.
The positioning projections 51 are formed on the front side of substantially both sides of the upper connection surface 50a and substantially the entire front surface, and the positioning grooves 52 are formed on the corresponding lower connection surface 50b (FIG. 9).
) Are provided.

In the connector housing 50, a plurality of terminal receiving chambers 53 each partitioned by a cavity wall 60 are provided.
Are provided, and the terminals 54 are respectively accommodated in the terminal accommodating chambers 53. The plurality of terminals 54 are connected to the connector housing 50.
At the stage before assembling to the terminal assembly 55, it is configured as a terminal assembly 55 shown in FIG.
Is composed of a plurality of terminals 54 arranged in a side-by-side state and a carrier portion 56 connecting the plurality of terminals 54. This terminal assembly 55 is formed by punching a plate-shaped conductive metal into a predetermined shape and bending the same to form a plurality of terminals 54, as shown in FIG. 5A. It is formed by bending a carrier portion 56 connecting the plurality of terminals 54 into a continuous shape of peaks and valleys. That is, by bending the carrier portion 56, the pitch between the terminals 54 is reduced from P1 to P2, and the terminal aggregate 55 has a narrow pitch.

In the process of assembling the connector housing 50, a portion of the carrier portion 56 located between the terminals 54 where no electrical connection is required is cut, and a cut space 61 is formed in this portion. . The cutting of the carrier portion 56 will be described in detail below.

The terminal 54 has a wire pressing portion 54a against which the wire W is pressed, a housing locking portion 54b for locking the connector housing 50, a tab portion 54c protruding toward the upper connecting surface 50a, and a lower connecting surface. Tab contact portion 54d (shown in FIG. 9) to be brought into contact with tab portion 50c inserted from 50b.
And

Next, the operation of mounting terminals on the connector housing 50 and the operation of connecting the connector housings 50 will be described. The terminal assembly 55 is inserted from the rear surfaces of the plurality of terminal receiving chambers 53 of the connector housing 50 to the temporary mounting position shown in FIG. Next, the adjacent terminal 54
Between the terminals 54 that do not require electrical connection, a portion of the carrier portion 56 located between the terminals 54 is cut using the carrier cutting jig device 62.

As shown in FIG. 6, the carrier cutting jig device 62 has a vertically movable cutting blade 63 and a carrier support 64 disposed below the cutting blade 63 and having a hole 64a. . As shown in FIG. 7 (A), the portion to be cut of the carrier portion 56 is placed on the carrier support 64 and the cutting blade 63 is moved downward from above (in the direction of the arrow).
The carrier portion 56 is pressed by the cutting blade 63.
Then, the carrier portion 56 is cut at two adjacent surfaces, and the cut shards 65 fall from the holes 64a, and a cut space 61 is formed in the carrier portion 56. In this manner, the carrier portion 5 between the terminals 54 that does not need to be electrically connected
When the cutting of all the portions 6 is completed, each terminal 54 is inserted to the mounting position. When the terminal 54 is inserted to the mounting position, the housing locking portion 54b of each terminal 54 is locked to the terminal locking portion (not shown) of the connector housing 50.

Next, a process such as pressing each wire W to the wire press-contact portion 54a of each terminal 54 is performed, so that each wire W is connected to each terminal 5a.
4 is connected.

Next, as shown in FIG. 8, the connecting surfaces 50a and 50b of the two connector housings 50 are moved in a direction to approach each other, and the positioning projections 51 and the positioning grooves 52 are aligned. When both alignments are performed, the connection surfaces 50a and 50b of both connector housings 50 are further moved in a direction of approaching each other,
When the connecting surfaces 50a and 50b are joined, the housing is locked and the connection is completed as shown in FIG.

Further, as the two connector housings 50 move to the connection position, the upper connector housing 5 is placed above each terminal accommodating chamber 53 of the lower connector housing 50.
The upper surface of each terminal accommodating chamber 53 of the lower connector housing 50 is closed by the upper connector housing 50 at the connection position shown in FIG. While the upper connector housing 50 is closed in this way, the tabs 54c of the terminals 54 of the lower connector housing 50 enter the upper connector housing 50, and at the connection position shown in FIG. The tab portion 54c of each terminal 54 contacts the tab contact portion 54d of each terminal 54 of the connector housing 50 above. If it is not desired to electrically connect the upper and lower terminals 54 to each other, a bending process of bending the tab portion 54c is performed in advance.

That is, this press-connecting joint connector
If necessary, it is possible to electrically connect between the adjacent upper and lower terminals 54 and between the adjacent left and right terminals 54.

[0013]

However, in the above-described conventional press-fit joint connector, the carrier portion 56 of the terminal 54 is formed in a continuous shape of ridges and valleys as described above. As shown, it is positioned relative to the cavity wall 60. That is, the uncut portion of the carrier portion 56 is disposed so as to straddle over the cavity wall 60, and the portion having the cut space 61 is such that the cut end faces of the carrier portion 56 face each other above the cavity wall 60. Placed. Therefore, when vibration or external force is applied to the carrier portion 56, the carrier portion 56 comes into contact as shown in FIG.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and has as its object to provide a press-fit joint connector that can reliably ensure insulation between adjacent terminals.

[0015]

According to a first aspect of the present invention, a plurality of terminal housings are provided in a lower connector housing, and a plurality of terminals are provided in the plurality of terminal housings. In the press-fit joint connector that accommodates each of the terminals and closes the upper part of the terminal accommodating chamber with the upper connector housing, a portion of the carrier portion that connects the adjacent terminals is cut and inserted into a cut space formed by the cut. An insulating projection is provided on the upper connector housing.

In this press-fit joint connector, since the insulating projection of the upper connector housing is located in the cut space of the carrier, even if vibration or external force is applied to the carrier, the opposed cut end faces of the carrier come into contact with each other. Nothing.

According to a second aspect of the present invention, there is provided the press-fit joint connector according to the first aspect, wherein the insulating protrusions are tapered surfaces whose two side surfaces gradually approach each other toward the front end.

In this press-fit joint connector, in addition to the function of the first aspect of the present invention, the distal end side of the insulating projection is thinner than the base end side, so that the positional displacement between the two connector housings during the connection work of both the connector housings. Even if there is, it is inserted into the cut space.

According to a third aspect of the present invention, there is provided the press-connecting connector according to the second aspect, wherein the insulating projection has a triangular cross section having a tip as an apex.

In this press-fit joint connector, in addition to the effect of the second aspect of the present invention, since the tip of the insulating projection has almost no width, there is a greater displacement between the two connector housings when connecting the two connector housings. Even inserted into the cut space.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show one embodiment of the present invention.
1A is a partial perspective view of the rear side of the connector housing 50 to be connected, FIG. 1B is a cross-sectional view taken along line AA of FIG. 1, and FIG. 2A is an insulating protrusion of the connector housing 50. 2 (B) is a cross-sectional view showing a state before and after the insulating protrusion 1 is cut, and FIG. 3 is a cross-sectional view of a connected connector housing 50. In this embodiment,
In order to avoid redundant description of the same components as in the conventional example, the description thereof will be omitted, and only different components will be described. Further, when parts having the same configuration as the conventional example are shown in the drawings, the same reference numerals as in the conventional example are given.

That is, as shown in FIGS. 1 (B) and 2 (A), both connector housings 50 are in the connection position, and are located on the lower surface of the upper connector housing 50 and the terminal assembly 55. The carrier part 56 is the cavity wall 60
Insulating protrusions 1 are provided at positions corresponding to the positions on which the vehicle is mounted. The insulating projection 1 has a tapered surface 1a whose two side surfaces gradually approach each other as they approach the tip, and the tapered surface 1a reaches the tip. In other words, the insulating projection 1 has a triangular cross-section with the tip as the apex. The other configuration is the same as the conventional example.

Next, the operation of mounting terminals on the connector housing 50 and the operation of connecting the connector housings 50 will be described. The operation of attaching the terminals to the connector housing 50 is the same as that of the conventional example.
As in the conventional example, the portion of the carrier portion 56 located between the terminals 54 is cut using a carrier cutting jig device.

Unnecessary ones of the plurality of insulating projections 1 of the upper connector housing 50 are shown in FIG.
A cutting process is performed as shown in FIG. That is, the portion where the cut space 61 of the carrier portion 56 of the lower connector housing 50 exists is not cut, and the other portions are cut.

The connection operation between the two connector housings 50 is the same as in the conventional example. That is, when the connecting surfaces 50a and 50b of the two connector housings 50 are moved in a direction of approaching each other while being aligned with each other,
Connecting surfaces 50a, 50b of both connector housings 50
The two are joined, the housing is locked, and the connection is completed as shown in FIG. With the movement of the two connector housings 50 to the connection position, the lower surface of the upper connector housing 50 approaches above the terminal accommodating chambers 53 of the lower connector housing 50, and moves downward at the connection position shown in FIG. Terminal housing chamber 5 of connector housing 50 of FIG.
The upper part of 3 is closed by the upper connector housing 50.
In addition, as the two connector housings 50 move to the connection position, the insulating protrusion 1 on the lower surface of the upper connector housing 50 gradually approaches the carrier portion 56 of the lower connector housing 50. As shown by a virtual line in FIG. 1 (B), the insulating protrusion 1 of the upper connector housing 50 is inserted into the cut space 61 of the carrier 56.

Therefore, even if vibration or external force is applied to the carrier portion 56, the cut end faces of the carrier portion 56 do not come into contact with each other, and the insulation between the adjacent terminals 54 can be reliably ensured. Further, the insulating projection 1 is connected to the connector housing 5.
Since it is provided at 0, an insulated state can be ensured without using a separate part, and furthermore, the connecting operation itself is the same as the conventional one, and there is no need to change or add a connecting process.

In this embodiment, since the insulating projection 1 has a triangular cross-section and its tip has almost no width, even if there is a positional displacement between the two connector housings 50 when the two connector housings 50 are connected to each other, a cut space is provided. 61
And can cope with a positional shift between the connector housings 50 during the connection operation.

According to the above embodiment, the insulating protrusion 1
Is formed in a triangular cross section having the tip as the apex, but both sides may be tapered surfaces 1a gradually approaching each other toward the tip, and may be formed in a trapezoidal cross section. Even in the case of such a configuration, the insulating protrusion 1
Is thinner than the base end, so that even if there is a misalignment between the two connector housings 50 when the two connector housings 50 are connected, they are inserted into the cut space 61, and between the connector housings 50 during the connection work. It can cope with misalignment. However, a triangular cross section as in the above embodiment is preferable because it can cope with a large displacement between the two connector housings 50.

According to the above-described embodiment, the case where the number of connecting stages of the connector housing 50 is two is shown, but the present invention can be similarly applied to three or more connecting stages.

[0031]

As described above, according to the first aspect of the present invention, the portion of the carrier portion connecting adjacent terminals is cut, and the insulating protrusion inserted into the cut space formed by this cut. Is provided in the upper connector housing, so that the insulating protrusion of the upper connector housing is located in the cut space of the carrier, so that even if vibration or external force is applied to the carrier, the opposite cut end faces of the carrier contact each other. Therefore, insulation between adjacent terminals can be reliably ensured. In addition, since the insulating protrusion is provided on the connector housing, an insulated state can be ensured without using a separate component. Further, the connecting operation itself is the same as the conventional one, and there is no need to change or add the connecting process.

According to a second aspect of the present invention, in the press-fitting joint connector according to the first aspect, the insulating protrusions are tapered surfaces whose both side surfaces gradually approach each other toward the front end. In addition to the effects of the present invention, since the distal end side of the insulating protrusion is thinner than the base end side, even if there is a displacement between both connector housings at the time of connection work of both connector housings, it is inserted into the cut space, and at the time of connection work Of the connector housing.

According to a third aspect of the present invention, there is provided the press-fitting joint connector according to the second aspect, wherein the insulating protrusion has a triangular cross section having a tip as an apex. Since the tip of the projection has almost no width, even if there is a greater displacement between the two connector housings during the connection work of both connector housings, it is inserted into the cut space, and the further displacement between the connector housings during the connection work Can respond to.

[Brief description of the drawings]

1A and 1B show an embodiment of the present invention, wherein FIG. 1A is a partial perspective view of a rear side of a connector housing to be connected, and FIG. 1B is a cross-sectional view taken along line AA of FIG.

FIGS. 2A and 2B show an embodiment of the present invention, wherein FIG. 2A is a cross-sectional view showing an insulating projection of a connector housing, and FIG. 2B is a cross-sectional view showing a state before and after the insulating projection is cut.

FIG. 3 is a cross-sectional view of a connected connector housing, showing one embodiment of the present invention.

FIG. 4 is a perspective view of a connector housing in a state where a conventional terminal assembly is assembled to a temporary mounting position.

5A is a partial perspective view showing a stage before completion of a conventional terminal assembly, and FIG. 5B is a perspective view of the conventional terminal assembly.

FIG. 6 is a perspective view showing a conventional carrier section cutting operation.

FIG. 7A is a cross-sectional view before cutting showing a conventional carrier section cutting operation, and FIG. 7B is a cross-sectional view after cutting showing a conventional carrier section cutting operation.

FIG. 8 is a perspective view of two connector housings showing a conventional connection operation.

FIG. 9 is a cross-sectional view showing a connection state of a conventional connector housing.

FIG. 10 is a cross-sectional view showing a state in which a conventional upper connector housing blocks a terminal accommodating chamber.

FIG. 11 is a cross-sectional view showing a conventional state in which adjacent terminals are short-circuited.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulation protrusion part 50 Connector housing 53 Terminal accommodation room 56 Carrier part 61 Cut space

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Nobuhiro Takada 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Corporation F-term (reference) 5E012 AA14

Claims (3)

[Claims] The connector housing is connected in multiple stages,
A plurality of terminal accommodating chambers are provided in the lower connector housing, a plurality of terminals are respectively accommodated in the plurality of terminal accommodating chambers, and a press-fit joint connector that closes an upper part of the terminal accommodating chamber with an upper connector housing. A press-fit joint connector, wherein a portion of a carrier portion connecting terminals is cut, and an insulating protrusion inserted into a cut space formed by the cut is provided on the upper connector housing. 2. The pressure-welding joint connector according to claim 1, wherein the insulating protrusions are tapered surfaces whose two side surfaces gradually approach each other as they approach a tip. 3. The crimping joint connector according to claim 2, wherein the insulating protrusion has a triangular cross section having a tip as an apex.