JPH0553171U - Connector conversion board - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to remove electromagnetic noise from the outside. [Structure] A full-pitch signal cable is connected to the full-pitch connector 2, and a half-pitch signal cable is connected to the half-pitch connector 3. Since the EMI filter 4 is interposed between the full pitch connector 2 and the half pitch connector 3, the electromagnetic noise transmitted by the wiring pattern 1 a is removed by the EMI filter 4. Moreover, since the ground line of the wiring pattern 1a is electrically connected to the frame ground pad 5, the ground potential can be reliably ensured.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 This invention relates to a connector conversion board.

[0002]

[Prior Art]

 A full-pitch connector is used in the main body of a computer, but since electronic equipment connected to the computer uses a half-pitch connector, it is necessary to convert the full-pitch connector into a half-pitch connector. FIG. 3 is a diagram showing a conventional technique for converting the full-pitch connector 10 into the half-pitch connector 30. 3A is a front view of the full-pitch connector 10, FIG. 3B is a plan view of the full-pitch connector 10, cable 20, and half-pitch connector 30, and FIG. 3C is a half-pitch connector 30. It is a front view. As shown in FIG. 3, conventionally, the terminals of the full-pitch connector 10 and the terminals of the half-pitch connector 30 have been connected by cables 20.

[0003]

[Problems to be solved by the device]

 In such a configuration, since the respective wirings of the cable 20 are connected to the terminals of the full-pitch connector 10 and the half-pitch connector 30, the workability is very poor, and at the cable 20 portion, EMI (electro magnetic interference; There was the inconvenience of picking up noise. The subject of this invention is to be able to remove electromagnetic noise from the outside.

[0004]

[Means for Solving the Problems]

 The means of this invention are as follows. (1) Full-pitch connector For example, it has a 50-pin terminal. (2) Half-pitch connector Like the full-pitch connector, it has 50-pin terminals. (3) A plurality of wirings for electrically connecting the full-pitch connector and the half-pitch connector, for example, a wiring pattern formed on a connector conversion board. (4) EMI filter provided on each of the plurality of wirings to remove electromagnetic noise transmitted to each wiring. The EMI filter is interposed between the full pitch connector and the half pitch connector.

[0005]

[Action]

 The operation of the means of this invention is as follows. Since the EMI filter is interposed between the full pitch connector and the half pitch connector, the electromagnetic noise transmitted to the wiring is removed by the EMI filter. Therefore, electromagnetic noise from the outside can be removed.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a front view showing the configuration of a connector conversion board 1 to which the present invention is applied, and FIG. 2 is a side view. A full-pitch connector 2 having 50-pin terminals and a half-pitch connector 3 also having 50-pin terminals are mounted on the connector conversion board 1. The terminals of the full-pitch connector 2 and the terminals of the half-pitch connector 3 are connected by a plurality of wiring patterns 1a formed on the connector conversion board 1. Further, the EMI filters 4 are respectively interposed in the wiring pattern 1a. A frame ground pad 5 is provided on the outer periphery of the connector conversion board 1. The frame ground pad 5 is connected to the EMI filter 4 by the wiring pattern 1a. Mounting holes 6 for screwing the connector conversion board 1 to the main body are provided at the four corners of the connector conversion board 1, respectively. When mounting the connector conversion board 1 on the main body, insert screws into the mounting holes 6 and fix it. As a result, the frame ground pad 5 is electrically connected to the frame ground of the main body.

Next, the operation of the above embodiment will be described. A full-pitch signal cable is connected to the full-pitch connector 2, and a half-pitch signal cable is connected to the half-pitch connector 3. Since the EMI filter 4 is interposed between the full pitch connector 2 and the half pitch connector 3, the electromagnetic noise transmitted through the wiring pattern 1a is removed by the EMI filter 4. Further, since the ground line of the wiring pattern 1a is electrically connected to the frame ground pad 5, the ground potential can be surely secured.

[0008]

[Effect of the device]

 According to this invention, since the EMI filter is interposed between the full pitch connector and the half pitch connector, electromagnetic noise from the outside can be removed by the EMI filter, which is an effective noise countermeasure.

[Brief description of drawings]

FIG. 1 is a front view showing the configuration of a connector conversion board to which the present invention is applied.

FIG. 2 is a side view of FIG.

FIG. 3 is a diagram showing a conventional example.

[Explanation of symbols]

 1 ... Connector conversion board 2 ... Full pitch connector 3 ... Half pitch connector 4 ... EMI filter 5 ... Frame ground pad

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Katsuhiko Yusa 3-2-1 Sakaemachi, Hamura-shi, Tokyo Casio Computer Co., Ltd. Hamura Technical Center (72) Yutaka Takahashi 3-2-1 Sakaemachi, Hamura-shi, Tokyo No. Casio Computer Co., Ltd. in Hamura Technology Center (72) Inventor Narihi Tachibana 32-1 Sakaemachi, Hamura City, Tokyo Casio Computer Co., Ltd. in Hamura Technology Center

Claims (1)

[Scope of utility model registration request] 1. A full-pitch connector, a half-pitch connector, a plurality of wirings for electrically connecting the full-pitch connector and the half-pitch connector, and electromagnetic noise provided to each of the plurality of wirings and transmitted to each wiring. A connector conversion board comprising: an EMI filter for removing