JP2001332334A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To aim at down-sizing, thin formation and reduction of manufacturing cost of a connector, by making the size in insertion direction of a contact of a housing smaller. SOLUTION: In the connector 1 wherein a housing 10, plural housing rooms 20 which are installed at every predetermined distance in the housing 10, plural contacts 50 that are respectively housed in the contact housing room 20 house, a housing lance 30 which is installed at the housing 10 and which locks a notched part 52 of the contact 50, and a retainer 40 which is installed at the housing 10 and which locks a stabilizer 54 of the contact 50 are equipped, and wherein the notched part 52 is positioned at a more front side in the insertion direction of the contact than the stabilizer 54, a tip end part 41 of this stabilizer 40 and the housing lance 30 are made to alternately stand in line in a contact array direction when the tip end part 41 of the retainer 40 is in a contact locking position to lock the stabilizer 54 of the contact 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector,
In particular, the present invention relates to an improvement in a connector including two locking portions for locking contacts.

[0002]

FIG. 9 is a sectional view of a conventional connector, and FIG.
Is a perspective view of a conventional contact.

FIG. 9 shows a state in which the contact 150 is at a regular locking position. The connector 101 includes a housing 110, a plurality of contact housing chambers 120 extending in the front-rear direction of the housing 110, and housing the contacts 150, and a housing lance 1 that faces the contact housing chamber 120 and locks the notch 152 of the contact 150.
30 and a retainer 140 for locking the stabilizer 154 of the contact 150.

The contact 150 includes a contact portion 151, a cutout portion 152, a base portion 153, and a stabilizer 154.
And a crimping part 155 and a holding part 156.

The contact 150 is formed by bending a thin metal plate.

[0006] The contact portion 151 for contacting a contact (not shown) is formed in a tubular shape having a square cross section.

The notch 152 is located forward of the stabilizer 154 in the contact insertion direction.

[0008] The crimping portion 155 is the core wire 10 of the cable 105.
Hold 6.

The holding portion 156 holds the core covering 107 of the cable 105.

Next, contact 1 to housing 110
The insertion of 50 will be described.

When the contact 150 is inserted through the rear opening 112 of the housing 110, the housing lance 130
Is pressed and bent. When all of the contacts 150 are inserted, the housing lance 130 returns to its original position, and the notch 152 of the contact 150 is locked to the housing lance 130.

Thereafter, the retainer 140 is connected to the housing 11.
0 through the opening 113 and the end 1 of the retainer 140.
41 is hit against the stabilizer 154.

As a result, the insertion of the contact 150 into the housing 110 is completed.

FIG. 11 is a sectional view of a conventional connector.

FIG. 11 shows a state in which the contact 150 is in a half-inserted state. In FIG. 11, illustration of the retainer 140 is omitted. Even if the contact 150 is in the half-inserted state (see FIG. 11), the retainer 140
Is inserted, the stabilizer 154 is pushed by the distal end portion 141 of the retainer 140, so that the contact 150
Can be moved to the regular locking position.

[0016]

However, the contact 1
When the insertion of the housing 50 into the housing 110 is completed, the distal end 1 of the retainer 140 is located behind the housing lance 130.
Since the position 41 is located, the dimension of the housing 110 in the contact insertion direction B is increased, and the connector 101 is increased in size. In addition, since many materials are required, the manufacturing cost is increased.

The present invention has been made in view of such circumstances, and an object of the present invention is to reduce the size of a housing in the contact insertion direction so as to reduce the size and thickness of a connector and reduce manufacturing costs.

[0018]

According to a first aspect of the present invention, there is provided a connector housing, a plurality of contact accommodating chambers provided at predetermined intervals in the connector housing, and a plurality of contact accommodating chambers. A plurality of contacts respectively housed therein, a first locking portion provided on the connector housing for locking a first predetermined portion of the contact, and a second locking portion which is insertable into the contact storage chamber and which is inserted into the contact storage chamber; A second locking portion for locking the predetermined portion, wherein the first predetermined portion is located on the front side in the contact insertion direction with respect to the second predetermined portion. When at a contact locking position for locking the second predetermined portion, the distal end of the second locking portion and the first locking portion are alternately arranged in the contact arrangement direction. To.

As described above, when the distal end of the second locking portion is at the contact locking position for locking the second predetermined portion of the contact, the distal end of the second locking portion and the first locking portion Are alternately arranged in the contact arrangement direction, so that the length of the contacts can be reduced.

According to a second aspect of the present invention, in the connector according to the first aspect, the sum of the width of the primary locking portion in the contact arrangement direction and the width of the tip of the secondary locking portion in the contact arrangement direction is equal to , Characterized in that it is smaller than the width of the contact accommodating chamber.

As described above, the sum of the width of the primary locking portion and the width of the distal end portion of the secondary locking portion is smaller than the width of the contact accommodating chamber. Can be inserted into the chamber.

According to a third aspect of the present invention, in the connector according to the second aspect, the width of the primary locking portion in the contact arrangement direction and the width of the secondary locking portion between the distal end portions in the contact arrangement direction are substantially equal. It is characterized by being equal.

Since the width of the primary locking portion in the contact arrangement direction is substantially equal to the length of the secondary locking portion in the contact arrangement direction, the distal end of the secondary locking portion is connected to the contact of the primary locking portion. Can be inserted in between.

According to a fourth aspect of the present invention, in the connector according to the first aspect, a sum of a width of the primary locking portion in a contact arrangement direction and a width of a tip portion of the secondary locking portion in a contact arrangement direction is equal to or smaller than that of the connector. The width of the contact accommodating chamber is larger than that of the contact accommodating chamber.

The tip of the secondary locking portion is shared by the contacts accommodated in the adjacent contact accommodation chambers.
The distal end of the next locking portion is inserted into the adjacent contact accommodating chamber.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a connector according to an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, FIG. 4 is a longitudinal sectional view thereof, and FIG. It is the perspective view shown. In FIG. 5, illustration of a retainer provided below the housing in the vertical direction is omitted.

The connector 1 includes a housing (connector housing) 10, a contact storage chamber 20, a housing lance (first locking portion) 30, and a retainer (second locking portion).
40.

The housing 10 is formed of resin, and a hole 11 for guiding a mating contact (not shown) to the contact storage chamber 20 is formed in a front end face thereof, and a contact 50 described later is formed in a rear end face thereof. A rear opening 12 for guiding to 20 is formed.

Openings 13 for inserting retainers 40 are formed in the upper and lower surfaces of the housing 10, respectively.

The contact storage chamber 20 is formed to extend in the front-rear direction of the housing 10. A housing lance 30 is provided so as to face the contact storage chamber 20.

The housing lance 30 is shaped like a tongue extending from the rear to the front of the housing 10 and is elastically deformable in the vertical direction of the housing 10.

At the tip of the housing lance 30, there is formed a step portion 31 capable of engaging a notched portion (first predetermined portion) 52 of a contact 50 described later.

The retainer 40 is integrally connected to the housing 10 via the hinge 15. The retainer 40 includes a stabilizer (second predetermined portion) 5 for a contact 50 described later.
4 is formed with a tip portion 41 that can be locked.

The tips 41 of the retainers 40 are arranged at predetermined intervals in the contact arrangement direction A of the housing 10.

Further, an opening 13 is provided at the rear end of the retainer 40.
Is formed with a recess 45 which can be locked.

The sum of the width of the housing lance 30 in the contact arrangement direction and the width of the tip portion 41 of the retainer 40 in the contact arrangement direction is slightly smaller than the width of the contact storage chamber 20 in the contact arrangement direction.

The width of the housing lance 30 in the contact arrangement direction is substantially equal to the width of the tip end 41 of the retainer 40 in the contact arrangement direction.

Therefore, the retainer 40 is connected to the housing 10
, The tip portion 41 of the retainer 40 and the housing lance 30 can be alternately arranged in the contact arrangement direction A.

FIG. 6 is a perspective view of the contact.

The contact 50 has a contact portion 51, a cutout portion (first predetermined portion) 52, a base portion 53, a stabilizer (second predetermined portion) 54, a crimping portion 55, and a holding portion 56.

The contact 50 is formed by bending a thin metal plate.

The contact portion 51 for contacting a contact (not shown) includes an upper plate portion 51a, a lower plate portion 51b, and a side plate portion 51.
c, and is formed at one end of the base 53.

The housing lance 3 is provided at the end of the upper plate portion 51a.
A notch 52 is formed which abuts on the step 31 of the zero. The notch 52 is located forward of the stabilizer 54 in the contact insertion direction B.

The stabilizer 54 is a flat plate which is perpendicular to the upper plate 51a.

The side plate portion 53c of the base portion 53, the contact portion 51
The side plate 51c and the stabilizer 54 of the
Functions as a guide when inserting into the contact accommodating chamber 20.

The crimping portion 55 holds the core wire 6 of the cable 5.

The holding portion 56 holds the core coating 7 of the cable 5.

Next, a method of mounting the contact 50 will be described.

FIG. 7 is a perspective view showing a cross section of a part of the connector in a state where the contact is inserted.

The contact 50 is inserted into the contact accommodating chamber 20 from the rear opening 12 of the housing 10. At this time, the contact 50 in the contact accommodating chamber 20 presses the housing lance 30, so that the housing lance 30 is deformed.

When the contact 50 is inserted to the regular locking position shown in FIG. 7, the housing lance 30 returns to the original position by the elastic force, and the notch 52 of the contact 50 is formed.
Is locked to the step 31 of the housing lance 30.

Thereafter, the retainer 40 is inserted into the contact accommodating chamber 20 from the upper and lower openings 13 of the housing 10.

When the retainer 40 is inserted into the contact accommodating chamber 20 by a predetermined amount, the distal end 41 of the retainer 40 comes into contact with the stabilizer 54. At this time, the retainer 40
Of the contact 5 is locked in the opening 13.
0 is prevented from falling out of the housing 10.

At this time, the distal end portion 41 of the retainer 40 and the housing lance 30 are alternately arranged in the contact arrangement direction A of the housing.

When the retainer 40 is inserted even when the contact 50 is in the half-inserted state, the stabilizer 54 is pushed by the distal end portion 41 of the retainer 40, so that the contact 50 moves to the regular locking position.

According to this embodiment, the overall length of the contact 50 can be made shorter than the overall length of the conventional contact by the amount that the stabilizer 54 can be shortened. As a result, the manufacturing cost of the contact 50 can be reduced, and the dimension of the housing 10 in the contact insertion direction can be reduced.
The size and thickness of the connector 1 can be reduced, and the manufacturing cost can be reduced.

FIG. 8 is a perspective view showing a modification of the contact. The same reference numerals are given to the same portions as those in the above embodiment, and the description will be omitted.

The contact 60 includes a contact portion 51, a cutout portion 52, a base portion 53, and a stabilizer (a second predetermined portion).
54, a crimping portion 55, and a pressing portion 56.

The contacts 60 are formed by extending the side walls 53c of the base portion 53 to form stabilizers 54 parallel to each other.
Is different from the contact 50 of the above embodiment.

When the contact 60 is used for the connector 1, the same effect as in the above embodiment can be obtained.

When the retainer 40 is inserted even when the contact 60 is in the half-inserted state, the stabilizer 54 is pushed by the tip end portion 41 of the retainer 40, so that the contact 60 can be moved to the regular locking position. .

In the above embodiment, the width of the housing lance 30 in the contact arrangement direction and the tip 4 of the retainer 40 are different.
The sum of 1 and the width in the contact arrangement direction is the contact storage room 2
0, but slightly smaller than the width of the housing lance 30 in the contact arrangement direction and the retainer 4.
The sum of the zero and the width of the leading end 41 in the contact arrangement direction may be slightly larger than the width of the contact storage chamber 20 in the contact arrangement direction.

For example, the tip of the retainer 40 is shared by the contacts 50 accommodated in the adjacent contact accommodation chambers 20, and the tip of the retainer 40 is inserted into the adjacent contact accommodation chamber. At this time, the width of the housing lance 30 in the contact arrangement direction and the tip 4 of the retainer 40 are set.
1 is smaller than the pitch of the contacts 50 in the arrangement direction.

[0065]

As described above, according to the connector of the first aspect of the present invention, the manufacturing cost of the contact can be reduced, the dimension of the housing in the direction of contact insertion can be reduced, and the connector can be reduced in size and thickness. And cost reduction can be achieved.

According to the connector of any one of the second to fourth aspects, the distal end of the second locking portion and the first locking portion can be alternately arranged in the contact arrangement direction.

[Brief description of the drawings]

FIG. 1 is a front view of a connector according to an embodiment of the present invention.

FIG. 2 is a plan view of the connector.

FIG. 3 is a side view of the connector.

FIG. 4 is a longitudinal sectional view of the connector.

FIG. 5 is a perspective view showing a part of the connector in cross section.

FIG. 6 is a perspective view of a contact.

FIG. 7 is a perspective view showing a part of the connector in a state where the contact is inserted, in a cross section.

FIG. 8 is a perspective view showing a modification of the contact.

FIG. 9 is a sectional view of a conventional connector.

FIG. 10 is a perspective view of a conventional contact.

FIG. 11 is a sectional view of a conventional connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector 10 Housing (connector housing) 20 Contact accommodation room 30 Housing lance (1st locking part) 40 Retainer (2nd locking part) 41 Tip part 50, 60 Contact 52 Notch part (1st predetermined part) 54 Stabilizer ( (The second predetermined part)

Claims (4)

[Claims] A connector housing; a plurality of contact housing chambers provided at predetermined intervals in the connector housing; a plurality of contacts housed in the contact housing chamber; and the contacts provided in the connector housing. A first locking portion that locks the first predetermined portion of the first contact portion; and a second locking portion that is insertable into the contact storage chamber and locks a second predetermined portion of the contact. In a connector in which the predetermined portion is located on the front side in the contact insertion direction with respect to the second predetermined portion, when the tip of the second locking portion is at a contact locking position for locking the second predetermined portion of the contact, A connector, wherein a tip end of a second locking portion and the first locking portion are alternately arranged in a contact arrangement direction. 2. The method according to claim 1, wherein a sum of a width of said primary locking portion in a contact arrangement direction and a width of a tip portion of said secondary locking portion in a contact arrangement direction is smaller than a width of said contact accommodating chamber. Item 2. The connector according to Item 1. 3. The connector according to claim 2, wherein the width of the primary locking portion in the contact arrangement direction is substantially equal to the width of the secondary locking portion between the distal end portions in the contact arrangement direction. 4. The method according to claim 1, wherein a sum of a width of said primary locking portion in a contact arrangement direction and a width of a tip portion of said secondary locking portion in a contact arrangement direction is larger than a width of said contact accommodating chamber. Item 2. The connector according to Item 1.