JPH1092478A - Pressure contacting connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent the occurrence of dew condensation within a terminal housing chamber housing pressure contacting terminals. SOLUTION: A terminal housing chamber 33 is formed out of the bottom wall 26 of a housing 22, a partition wall 30 and the bottom wall 31 of a housing 23, and of a partition wall 32. A recessed part 37 is formed at the opposite end part 36 of the partition wall 30, and a projected part 39 is formed at the opposite end part 38 of the partition wall 32. Since the recessed part 37 is meshed with the projected part 39 by the combination of the housings 22 and 23, a creeping distance to the adjacent terminal housing chamber 33 becomes long, humidity is prevented from ingressing, and the occurrence of dew condensation is thereby prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-connecting connector accommodating press-connecting terminals.

[0002]

2. Description of the Related Art A press-connecting terminal is electrically connected to an electric wire when a press-contact blade bites into an insulating coating of the electric wire and comes into contact with a conductor inside the insulating coating. FIG. 4 shows a conventional insulation displacement connector accommodating the insulation displacement terminals. Reference numeral 1 denotes a housing made of an insulating resin, and a bottom wall 2 and a plurality of partition walls 3 erected from the bottom wall 2 at a predetermined interval. A portion surrounded by the bottom wall 2 and the adjacent partition wall 3 is a terminal accommodating chamber 4. A plurality of terminal receiving chambers 4 are formed in the housing 1, and press-contact terminals 5 are stored in each terminal receiving chamber 4.

The press contact terminal 5 is provided with a cylindrical contact portion 6 which is brought into contact with the mating terminal when the mating terminal (not shown) is inserted, and is connected to the contact portion 6 via the bottom portion 7. And a press contact portion 8. The press contact portions 8 are disposed so as to face each other by bending and raising both sides of the bottom portion 7. Each press contact portion 8 is formed in a U-shape, and both bent end portions serve as press contact blades 9 that bite into the electric wire 10. The electric wire 10 has a structure in which a conductor 11 is covered with an insulating coating 12.

In this structure, the electric wire 10 is positioned from above so as to be located between the press contact portions 8 of the press contact terminals 5, and a press jig (not shown) is lowered to push the electric wire 10 between the press contact portions 8. . The pushing causes the press-contact blade 9 to bite into the insulating coating 12 and come into contact with the conductor 12, so that the electric wire 10
And can be connected.

[0005] In order to be able to be pushed by such a pressing jig, the upper surface of the housing 1 needs to be open. Conventionally, a flat cover 13 is placed on the open upper surface of the housing 1, and the upper part of the terminal accommodating chamber 4 is closed by the cover 13.

[0006]

The cover 13
In a press-connecting connector having a conventional structure that only covers the terminal housing, dew condensation easily occurs inside the terminal accommodating chamber 4, and this dew condensation may cause a short circuit. That is, just by covering the cover 13, as shown in FIG. 5, a gap 14 is formed between the partition wall 3 of the housing 1 and the cover 13, and moisture passes through the gap 14 and enters the terminal accommodating chamber 4. There is a risk of intrusion.

The present invention has been made in consideration of such conventional problems, and has as its object to provide a press-connecting connector having a structure capable of reliably preventing dew condensation in a terminal accommodating chamber.

[0008]

In order to achieve the above object, the present invention according to claim 1 comprises a plurality of housings each having a bottom wall and a plurality of partition walls erected from the bottom wall, wherein the partition wall is provided. A crimping connector in which a terminal accommodating chamber for accommodating a crimping terminal is formed by assembling the housings so as to face each other. Features.

In this structure, a plurality of terminal chambers partitioned by the partition wall can be formed by combining the housing with the partition wall facing each other. Since the opposing ends of the opposing partition walls mesh with each other, this meshing increases the creepage distance before reaching the adjacent terminal receiving chamber. Therefore, it is difficult for moisture and rainwater to enter the terminal accommodating chamber, and dew condensation can be prevented. Further, when the opposing ends of the partition wall are engaged with each other, it is possible to prevent the housings from being displaced from each other.

According to a second aspect of the present invention, in the first aspect of the present invention, a concave portion is formed in the opposite end of one housing, and the opposite end of the partition wall of the other housing intrudes into this concave portion. It is characterized by doing.

When the opposing end of the mating housing enters the recess, the opposing ends are engaged with each other, so that a long creepage distance can be ensured.

According to a third aspect of the present invention, in the first aspect of the present invention, the opposing ends of the partition walls of the housing to be combined are formed in a stepped shape so as to mesh with each other.

[0013] Even when the opposing end portions of the partition wall mesh with each other in a stepwise manner, a long creepage distance can be ensured.

[0014]

FIG. 1 is a partially cutaway front view of an entire embodiment of the present invention, and FIG. 2 is a cross-sectional view of a main part thereof. The press-connecting connector 20 of this embodiment is configured by combining three housings in the vertical direction.
1 is an upper housing located at the top, 22 is a lower housing located at an intermediate portion, and 23 is a cover housing located at the bottom.

Hook portions 21a formed in a hook shape are provided at opposing portions of both ends of the housings 21, 22, and 23.
22a, 22b, and 23a are formed, and the press-connecting connector 20 is assembled by engaging these hook portions. That is, the hook 21a of the upper housing 21 is engaged with the hook 22a of the lower housing 22, and the hook 23a of the cover housing 23 is engaged with the hook 22b of the lower housing 22 connected to the hook 22a. The housings 21, 22, and 23 are combined by these engagements. Therefore, in this embodiment, while the upper housing 21 and the lower housing 22 are mating housings with each other, the lower housing 22 and the cover housing 23
Are housings of each other.

The upper housing 21 and the lower housing 22 have bottom walls 25 and 26, respectively, which extend in the horizontal direction, and a plurality of partition walls 27 which stand at predetermined intervals from the bottom walls 25 and 26 in the direction of the mating housing. , 28. Partition wall 2 in each of housings 21 and 22
7 and 28 are opposed to each other and the housings 21 and 22
By combining the two, the opposing partition walls 27, 2
8 contacts. And the partition walls 27 and 28 and the bottom wall 25,
The terminal housing chamber 29 is formed by being surrounded by 26.

The same applies to the lower housing 22 and the cover housing 23. A partition wall 30 stands upright from the bottom wall 26 of the lower housing 22 in the direction of the cover housing 23. On the other hand, the cover housing 23 has a bottom wall 31 extending in the horizontal direction, and the bottom wall 31
From above, a plurality of partition walls 32 stand in the direction of the lower housing 22. Then, by combining the housings 22 and 23, a terminal accommodating chamber 33 surrounded by the partition walls 30, 32 and the bottom walls 26, 31 is formed.

The housings 21 to be combined
Of the housings (lower housing 22 and cover housing 23) located on the lower side of the housings 22 and 23, push-up projections 34 standing in the direction of the housings 21 and 22 on the other side are provided.
Are formed. The push-up protrusion 34 is in the terminal accommodating chamber 2.
9 and 33 are formed so as to face each other, and when the housings are combined, the electric wires are pressed against the press-contact terminals described later.

In such an embodiment, the terminal accommodating chamber 2
9 and 33 are formed in two upper and lower stages, and a plurality of the upper and lower stages are arranged in the horizontal direction. Press-contact terminals (see FIG. 2) are inserted into the respective terminal accommodating chambers 29 and 33. The insulation displacement terminal has the same structure as that of FIG.
In the figure, reference numeral 35 denotes a press-contact blade that bites into the electric wire, and has a blade body 35a that is inclined obliquely downward.

In the above embodiment, the opposing partition walls of the mating housing are formed in such a shape that their opposing ends mesh with each other. FIG. 2 shows this engagement for the lower housing 22 and the cover housing 23.

The partition walls 30, 32 of the respective housings 22, 23 are formed to have a length in contact with the partition walls 32, 30 on the other side, and the partition walls 30 on the lower housing 22 side.
The opposite end portion 36 has a concave portion 37 formed by depressing a central portion in an arc shape. On the other hand, the opposite end 38 of the partition wall 32 on the cover housing 23 side is a tapered convex portion 39, and can enter the inside of the concave portion 37 on the lower housing 22 side.

When such housings 22 and 23 are combined, the convex portion 39 enters and fits into the concave portion 37, and the opposing ends 36 and 38 of the partition walls 30 and 32 mesh with each other. . In this meshing state, the creepage distance until reaching the adjacent terminal storage chamber 33 becomes long, and it becomes difficult for moisture and rainwater to enter the terminal storage chamber 33. For this reason, it is possible to prevent dew condensation in the terminal accommodating chamber 33, and to prevent electric leakage due to dew condensation. Also, the facing end 36,
38 mesh with each other to form partition walls 30, 32.
Is in a strong bonding state. For this reason, the housing 22, 2
3 can be prevented from shifting.

FIG. 3 shows another embodiment of the present invention with respect to a lower housing 22 and a cover housing 23. The opposite end 36 of the partition wall 30 on the lower housing 22 side is formed in a stepped shape including a lower portion 40 and a higher portion 41, while the opposite end 38 of the partition wall 32 on the cover housing 23 side also has a lower portion. It is formed in a step-like shape composed of 42 and a high portion 43. In these facing end portions 36 and 38, the lower portions 40 and 42 are opposed to the higher portions 43 and 41 on the other side. Therefore housing 2
When 2 and 23 are combined, the opposed ends 36 and 38 are in mesh with each other, and the creepage distance before reaching the adjacent terminal receiving chamber 33 is increased. Thereby, infiltration of moisture and rainwater can be prevented.

The above-described structure of the opposite end portion is similarly applied to the partition wall 27 of the upper housing 21 and the partition wall 28 of the lower housing 22. Dew condensation on the terminal housing chamber 29 can be similarly prevented.

[0025]

According to the first aspect of the present invention, by combining the housing with the partition walls facing each other, it is possible to form the terminal receiving chamber partitioned by the facing partition walls.
In this combined state of the housings, the opposing ends of the opposing partition walls mesh with each other, so that the creeping distance until reaching the adjacent terminal accommodating chamber becomes long. Therefore, it is difficult for moisture and rainwater to enter the terminal accommodating chamber, and dew condensation can be prevented.

According to the second aspect of the present invention, since the opposing ends of the other housing enter into the recesses of the one housing, the opposing ends are engaged with each other, so that a long creepage distance can be ensured.

According to the third aspect of the present invention, the opposing end portions mesh with each other in a stepwise manner, so that a long creepage distance can be ensured.

[Brief description of the drawings]

FIG. 1 is a partially broken front view showing an entire embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part of one embodiment.

FIG. 3 is a cross-sectional view of a main part of another embodiment.

FIG. 4 is a partially cutaway perspective view of a conventional press-connecting connector.

FIG. 5 is a cross-sectional view showing a problem of the conventional press-connecting connector.

[Explanation of symbols]

 REFERENCE SIGNS LIST 20 press-connecting connector 21 upper housing 22 lower housing 23 cover housing 25 26 31 bottom wall 27 28 30 32 partition wall 29 33 terminal accommodating chamber 35 press-contact blade 36 38 opposing end 37 concave portion 39 convex portion 40 42 low portion 41 43 high portion

Claims (3)

[Claims] 1. A terminal housing for accommodating a press-contact terminal by combining a housing having a bottom wall and a plurality of partition walls standing upright from the bottom wall, and the partition walls being opposed to each other. A press-connecting connector in which a chamber is formed, wherein opposing ends of partition walls of a housing to be combined are shaped to mesh with each other. 2. The invention according to claim 1, wherein a recess is formed at the opposite end of one of the housings, and the opposite end of the partition wall of the other housing enters the recess. Crimp connector. 3. The press-connecting connector according to claim 1, wherein opposing ends of the partition walls of the housings to be combined are formed in a stepped shape so as to mesh with each other.