JP2626542B2 - Cable 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 cable connector used for an electronic computer, an electronic exchange, and the like.
SKEW).

[0002]

2. Description of the Related Art FIG. 5 is a sectional view of a conventional cable connector. The conventional cable connector will be described with reference to FIG. Reference numeral 2 denotes a flat, hermetically sealed case, reference numeral 3 denotes an insertion hole into which a male contact of a connector (not shown) such as a pin header is inserted, and 11 is a curved contact portion 1 at which one end contacts a male contact.
A contact 1a is formed and fixed to a mounting portion protruding from the bottom surface of the case 2. A cable 8 is connected to a cable connecting portion 11b at the other end of the contact 11 by crimping or pressure welding and led out of the case 2. It is. A plurality of the insertion holes 3 and the contacts 11 are arranged side by side toward the back of the paper to constitute a multi-bit cable connector. A plurality of cables 8 connected to the respective contacts 11 are bundled. Derived from Case 2.

[0003]

In the conventional cable connector described above, the contact length between the contact portion 11a of the contact 11 and the cable connection portion 11b is constant, and the high-speed parallel input / output transmission circuit is provided on the cable connector side. SKEW between the circuits cannot be adjusted. Therefore, conventionally, in the interface IC, it is necessary to set and manage the SKEW value to the characteristic value, and to manage the cable length variation and the line-to-line capacitance variation in the cable. There was a problem that it became expensive.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and has as its object to adjust the SKEW on the cable connector side, thereby reducing the cost of the high-speed parallel input / output transmission circuit. It is to provide a cable connector.

[0005]

In order to achieve this object, a cable connector according to the present invention comprises a contact fixed in a case, one end of which is connected to a contact of another component inserted in the case, and A cable connector is connected to a cable and led out of the case, wherein a slidable movable piece is provided on the contact, and the cable is connected to the movable piece. Further, the cable connector according to the present invention is provided with a plurality of pairs of contacts and movable pieces. Further, the cable connector according to the present invention is provided with an exposed knob outside the case in which the movable piece slides.

[0006]

According to the present invention, the contact length changes by sliding the movable piece. Further, according to the present invention, the SKEW between the circuits is adjusted by sliding the individual movable pieces. Further, according to the present invention, the contact length is adjusted from outside the case by the knob.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a cable connector according to the present invention,
FIG. 2 is an external perspective view of the same. In these figures,
The same components as those of the conventional technology are denoted by the same reference numerals, and detailed description is omitted. A plurality of sliding slits 4 are formed in the upper surface of the case 2 in parallel at equal intervals. 6 are contact portions 6 which are curved downward and upward at both ends, respectively.
a and 6 b are fixed pieces fixed to the mounting portion 5.

Reference numeral 7 denotes a movable piece having a downwardly curved contact portion 7a formed at one end and a cable 8 connected to a bent portion 7b at the other end. Reference numeral 9 denotes a knob slidably supported in the sliding slit 4. The movable piece 7 is fixed to the lower end, and by sliding the knob 9, the movable piece 7 has a contact portion 7a with a fixed piece. 6 and the contact portion 6b slides on the fixed piece 6 while maintaining the contact state with the movable piece 7. Thus, the provision of the movable piece 7 makes it possible to change the contact length between the contact portion 6a and the cable connection portion 7b.

By the way, the contact length and the delay time are as follows.
The relationship shown in FIG. 4 is obtained, and the delay time of signal propagation becomes longer in proportion to the length of the contact length. The present invention uses this principle to correct the SKEW between bits by adjusting the delay time of each bit.

That is, FIG. 1A shows the case of L ₁ with the minimum contact length, and FIG. 1B shows the case of L ₂ with the maximum contact length. . In the state of FIG. 1 (a), when the input of the input signal P becomes a waveform in FIG. 3 to the contact portion 6a, it is obtained an output waveform P ₁ that time t ₁ delays, in the state of FIG. 1 (b), When inputting the input signal P becomes a waveform, is obtained output waveform P ₂ further time t ₂ delayed, by adjusting the contact length between each bit individually, it can be corrected delay time between each bit. The correction of the delay time is performed as shown in FIG.
As shown in (1), the contact length can be linearly adjusted by the knob 9 for each bit.

[0011]

As described above, according to the present invention, a slidable movable piece is provided at a contact fixed to the case and connected to a contact of another component inserted into the case at one end. By connecting a cable to the movable piece and sliding the movable piece, the contact length is varied, and the delay time is corrected by this contact, so that the cable connector itself has a SKEW adjustment function, and the SKEW adjustment function is provided.
Inexpensive and readily available ICs and cables that do not compensate for W can be used, which makes the entire device inexpensive.

Further, according to the present invention, a plurality of pairs of contacts and movable pieces are provided, and the SKEW can be adjusted in the final step, including variations in the entire transmission path other than the IC and the cable. The adjustment can be performed in a short time without any variation.

According to the present invention, since the exposed knob is provided outside the case for sliding the movable piece, the movable piece can be directly slid by the knob, and the position of the movable piece can be visually checked. Since the confirmation can be made, the adjustment is easy, and the contact length can be linearly changed, so that the adjustment can be performed with high accuracy.

[Brief description of the drawings]

FIG. 1 is a sectional view of a cable connector according to the present invention;
(A) shows the state where the contact length is minimum, and (b) shows the state where the contact length is maximum.

FIG. 2 is an external perspective view of a cable connector according to the present invention.

FIG. 3 is a diagram showing a time lapse of an input signal and an output signal in the cable connector according to the present invention.

FIG. 4 is a diagram showing a relationship between a contact length and a delay time in the cable connector according to the present invention.

FIG. 5 is a sectional view of a conventional cable connector.

[Explanation of symbols]

 2 Case 4 Sliding slit 6 Contact 7 Movable piece 8 Cable 9 Knob

Claims (3)

(57) [Claims] 1. A cable connector, wherein one end of a contact fixed in a case is connected to a contact of another component inserted in the case, and a cable is connected to the other end and led out of the case. A cable connector, characterized in that a slidable movable piece is provided on the movable piece, and a cable is connected to the movable piece. 2. The cable connector according to claim 1, wherein a plurality of pairs of said contacts and movable pieces are provided. 3. The cable connector according to claim 1, further comprising a knob exposed outside a case in which the movable piece slides.