JP3300298B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for electrically connecting cables arranged at a narrow pitch.

[0002]

2. Description of the Related Art Conventionally, as a method of connecting cables arranged at a narrow pitch, there is a method of crimping or soldering a cable to a contact.

[0003] However, this method has a problem that the occupied area of the crimping portion and the soldering portion is large and it is impossible to respond to the narrow pitch of the contacts.

As a connector for solving this problem, there is a connector disclosed in Japanese Patent Application Laid-Open No. 10-255921.

[0005] This connector comprises a cable row arrangement member, a cable holder, a holder cover, a socket,
Consists of contacts.

The cable row arrangement member arranges a plurality of cables in a row at a predetermined pitch.

[0007] The cable holder has a concave portion for accommodating the cable row arrangement member and a cable guide groove for guiding the cable conductor of the cable, and is mounted on the holder cover.

[0008] The socket has a box shape, and a plurality of contacts corresponding to the cable are arranged inside the socket.

In order to use this connector, first, a plurality of cables are mounted on a cable row arrangement member. Next, the cable row-shaped arrangement member is accommodated in the recess of the cable holder.
Next, the cable conductor of the cable is bent into a substantially U-shape and crawls in the cable guide groove of the cable holder. After that, the holder cover is attached to the cable holder. Finally, the cable holder is fitted into the socket. At this time,
The cable conductor of the cable is sandwiched between the forked contact portions of the contacts, and both are electrically connected.

[0010] As described above, since the cable is not crimped or soldered to the contact, the pitch of the contact can be reduced.

[0011]

However, as described above, the structure of the connector is complicated and the number of parts is large, and the cable conductor of the cable must be bent substantially in a U-shape and run along the cable guide groove of the cable holder. The assembly is very complicated.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a connector in which the number of parts is reduced and an assembling operation is simplified by simplifying the structure.

[0013]

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a base insulator, a contact fixed to the base insulator and connected to a cable having a strip portion, and a base insulator are provided. A connector provided with a cover insulator that covers a connection portion between the cable and the contact; a plurality of cable guide grooves formed at a predetermined pitch in the base insulator; And a spring for urging the strip portion against the inner wall surface of the cable guide groove when stored in the cable guide groove.

Even when the strip portion of the cable is bent substantially in a U-shape and laid in the cable guide groove, the strip portion of the cable is simply stored in the cable guide groove without bending, and the strip portion is formed by the spring portion of the contact. The cable is urged against the inner wall surface of the guide groove to electrically connect the cable and the contact.

A connector according to a second aspect of the present invention is the connector according to the first aspect, wherein the spring portion of the contact is disposed so as to obliquely cross the inside of the cable guide groove.

When the strip portion of the cable is stored in the cable guide groove, the strip portion pushes and spreads the spring portion of the contact so as to be parallel to the cable guide groove. Therefore, an elastic force acting to return to the original position acts on the spring portion of the contact.

According to a third aspect of the present invention, in the connector according to the first or second aspect, the contact and the base insulator are formed with a storage recess for storing the head of the cable. .

When the strip portion of the cable is housed in the cable guide groove, the head of the cable is housed in a housing recess formed in the contact and the base insulator.

According to a fourth aspect of the present invention, there is provided the connector according to any one of the first to third aspects, further comprising a guide portion for guiding the strip portion into the cable guide groove. I do.

When the strip portion of the cable is stored in the cable guide groove, the guide portion is provided, so that the strip portion can be easily guided to the cable guide groove.

According to a fifth aspect of the present invention, there is provided the connector according to any one of the first to fourth aspects, wherein the cover insulator includes the base insulator and the cables arranged on both sides of the base insulator. It is a pair of insulators to be sandwiched.

The two cables can be held by a pair of cover insulators.

[0023]

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

FIG. 1A is a front view of a connector according to an embodiment of the present invention, FIG. 1B is a plan view thereof, and FIG.
(C) is a side view thereof.

The connector is a base insulator 10
, A contact 20, and a cover insulator 30.

A cable 50 connected to the contact 20 is arranged on the base insulator 10.

The cover insulator 30 includes a first cover insulator 31 and a second cover insulator 32.
The first cover insulator 31 and the second cover insulator 31
Is integrated with the cover insulator 32 by four flathead screws 33.

FIG. 2A is a front view of the cable, and FIG.
2B is a plan view thereof, and FIG. 2C is a side view thereof.

The cable 50 has a rectangular cross section and the signal line 5
1, a drain wire 52, a dielectric 53, and a shield wire 5
4 and a coating 55.

The dielectric 53 surrounds the signal line 51 concentrically.

The signal line 51 and the drain line 52 are arranged in parallel at a predetermined interval, and
Surrounded by

The end of the cable 50 has a head portion 56 having a coating 55 and a strip portion 57 from which the signal line 51 and the drain line 52 are exposed.

FIG. 3 is a sectional view taken along the line III-III in FIG.

The cable 50 is connected to the base insulator 10
Are arranged along both sides. The cable 50 on one side is held between the first cover insulator 31 and the base insulator 10, and the cable 50 on the other side is held between the second cover insulator 32 and the base insulator 10.

A part of the cable 50 on one side is pressed into a concave portion 11 formed on the base insulator 10 by a convex portion 31a formed on the first cover insulator 31, and is clamped.

A part of the cable 50 on the opposite side is pushed into the concave portion 12 formed on the base insulator 10 by the convex portion 32a formed on the second cover insulator 32 and clamped.

On the other hand, the signal line 51 and the drain line 52 of the cable 50 are in contact with the contacts 20, respectively.

FIG. 4 is a sectional view showing a state before the cable is mounted.

The press-fit portion 21 of the contact 20 is press-fit into the base insulator 10.

A contact portion 22 is formed at one end of the contact 20 so as to be able to contact a contact (not shown) of a mating connector, and a spring portion 23 is formed at the other end to contact the strip portion 57 of the cable 50. I have.

The contact 20 and the base insulator 10 are formed with a housing recess 13 for housing the head 56 of the cable 50.

FIG. 5 is a view taken along the line V--V in FIG.

The spring portion 23 of the contact 20 is disposed between the inner wall surfaces 15a and 15b of the cable guide groove 15 formed at a predetermined pitch in the base insulator 10 so as to obliquely cross the inside of the cable guide groove 15.

A tapered surface (guide portion) 58 for guiding the strip portion 57 into the cable guide groove 15 is formed at the entrance of the cable guide groove 15.

Next, a method of connecting the cable 50 will be described.

FIG. 6 is a sectional view for explaining the installation of the cable.
FIG. 7 is a view for explaining the mounting of the cover insulator.

First, the head 56 of the cable 50 is housed in the housing recess 13. Next, the cable 50 is rotated in the direction of arrow a with the head 56 as a fulcrum, and the strip portion 57 is guided into the cable guide groove 15 via the tapered surface 58 (see FIG. 7).

The cable 50 is connected to the base insulator 10
After the first cover insulator 31 and the second cover insulator 31
The cable 50 is sandwiched between the cover insulator 32 and the cover insulator 32.

FIG. 8 is a view taken in the direction of arrows VIII-VIII in FIG.

The cable 50 is connected to the base insulator 10
When mounted on the inner surface 15a of the cable guide groove 15, the strip portion 57 (the signal line 51 and the drain line 52) is opposed to the elastic force of the spring portion 23.
0), and the contact 20 is displaced so as to be parallel to the inner wall surfaces 15a and 15b of the cable guide groove 15.

FIG. 9 is a sectional view taken along the line IX-IX in FIG.

The head 56 of the cable 50 is housed in the housing recess 13 and the contact 20 is connected to the base insulator 10.
Is stored in.

FIG. 10 is a sectional view taken on line XX of FIG.

The strip portion 57 (the signal line 51 and the drain line 52) is in the original state of the spring portion 23 (the state shown in FIG. 5).
Cable guide groove 15
Of the inner wall surface 15a.

According to this embodiment, the holder cover is not required unlike the conventional example, so that the number of parts is reduced and the structure is simplified, and the strip portion 57 is bent into a U-shape to be formed in the cable guide groove 15. Since it is not necessary to crawl, the assembling work becomes easy, and the manufacturing cost can be reduced.

The signal line 51 and the drain line 52 are urged against the inner wall surface 15a of the cable guide groove 15 by the elastic force of the spring portion 23 displaced by the insertion of the strip portion 57 (the signal line 51 and the drain line 52). Therefore, the contact stability between the signal line 51 and the drain line 52 and the contact 20 is improved.

Further, the operation of cutting off the head portion 56 of the cable 50 after the connection can be omitted, and the strip portion 57 can be easily guided to the cable guide groove 15 by the tapered surface 58, so that the workability is improved. I do.

The cable 50 is clamped in the recesses 11 and 12 by the first cover insulator 31 and the second cover insulator 32.
Even when external force is applied to the contact 20
It is possible to prevent damage to the connector.

By using a pair of cover insulators 31, 32, one connector can use two cables.

Although the first cover insulator 31 and the second cover insulator 32 are integrated by the countersunk screw 33, the insulators 31 and 32 to be molded may be hooked and stopped.

The connection is not limited to the above method. For example, the strip portion 57 is pushed into the contact 22 by using a jig or the cover insulators 31 and 32 are used.
Alternatively, the strip portion 57 may be pushed into the contact 20.

Further, in the above embodiment, two cables are held by using two cover insulators, but one cable may be held by using one cover insulator.

[0063]

As described above, according to the connector of the first aspect of the present invention, the number of parts is reduced, the structure is simplified, the assembly is facilitated, and the manufacturing cost is reduced.

According to the connector of the second aspect of the present invention, the strip portion is urged against the inner wall surface of the cable guide groove by the elastic force of the spring portion displaced by the insertion of the strip portion. The contact stability is improved.

According to the connector of the third aspect of the present invention, the work of cutting off the head of the cable after connection can be omitted, so that the workability is improved.

According to the connector of the fourth aspect of the present invention, the strip portion can be easily guided to the cable guide groove, so that workability is improved.

According to the connector of the present invention, even when two cables are used, one cable can be used.

[Brief description of the drawings]

FIG. 1A is a front view of a connector according to an embodiment of the present invention, FIG. 1B is a plan view thereof, and FIG. 1C is a side view thereof.

2 (a) is a front view of the cable, FIG. 2 (b) is a plan view thereof, and FIG. 2 (c) is a side view thereof.

FIG. 3 is a sectional view taken along the line III-III in FIG. 1 (b).

FIG. 4 is a sectional view showing a state before a cable is attached.

FIG. 5 is a view taken in the direction of arrows VV in FIG. 4;

FIG. 6 is a cross-sectional view illustrating attachment of a cable.

FIG. 7 is a diagram for explaining how to attach a cover insulator.

FIG. 8 is a view taken in the direction of arrows VIII-VIII in FIG. 7;

FIG. 9 is a sectional view taken along the line IX-IX in FIG. 7;

FIG. 10 is a sectional view taken along the line XX of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base insulator 13 Storage recess 15 Cable guide groove 20 Contact 23 Spring part 30 Cover insulator 50 Cable 56 Head 57 Strip part 58 Tapered surface (guide part)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 23/02 H01R 9/07 H01R 23/66

Claims (5)

(57) [Claims] 1. A base insulator, a contact fixed to the base insulator and connected to a cable having a strip portion, and a cover insulator attached to the base insulator and covering a connection portion between the cable and the contact. A plurality of cable guide grooves formed at a predetermined pitch in the base insulator; and a cable guide groove formed in the contact and guiding the strip portion when the cable is housed in the cable guide groove. A connector for biasing the inner wall surface of the groove. 2. The connector according to claim 1, wherein the spring portion of the contact is disposed so as to obliquely cross the inside of the cable guide groove. 3. The connector according to claim 1, wherein a recess is formed in the contact and the base insulator to accommodate a head of the cable. 4. The apparatus according to claim 1, further comprising a guide for guiding said strip into said cable guide groove.
The connector according to any one of claims 1 to 3. 5. The cover insulator according to claim 1, wherein the cover insulator is a pair of insulators that sandwich the cable disposed on both surfaces of the base insulator and the base insulator.
Connector according to item.