JP3060454U - Connectors and printed circuit boards - Google Patents

Abstract

(57) [Problem] To provide a connector used for a printed circuit board, which can flow a large current even if a rated current per pin is small. SOLUTION: A circuit 3 on a printed circuit board 1 and an external device or another printed circuit board are connected to a plurality of pins 6, 7, 8,.
... and a plurality of terminals to be brought into contact with each other and a plurality of electric wires connected to the terminals. Pin 6,
7, 8... Have a configuration in which one ends of a plurality (6, 7, 8) are commonly connected in accordance with the amount of current to flow.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a connector and a printed circuit board for connecting a circuit on a printed circuit board to an external device or another printed circuit board by electric wires.

[0002]

[Prior art]

 FIG. 3 is a perspective view showing the connector and the printed circuit board. This connector is in contact with a male pin 17 called a plug or jack, which is inserted into a hole (not shown) of the printed circuit board 18 and fixed by soldering, corresponding to each of the male pins 17. The housing 15 includes a female terminal called a power contact, and a lead wire 16 (electric wire) connected to each contact in the housing 15. Other connectors used for the printed circuit board include those having shortened pins and those in which the direction of insertion of the pins into the housing 15 is parallel to the printed circuit board 18 for space utilization.

FIG. 4 is an explanatory diagram for explaining, for example, a case where a 30-pin connector 20 is mounted on a printed circuit board 18. Each pin 21 is indicated by a circle and is arranged in a line. . In this case, it is used to connect the 30-pin IC 22 to the outside. On the other hand, FIG. 1 is an explanatory diagram for explaining a case where a 50-pin connector 2 is mounted on a printed circuit board 1. In this case, the connector 2 has 25 pins arranged in two rows and is used for connection between the IC 3 having 40 pins and the outside.

When a connector is used in a limited space on a printed circuit board, the connector 20 (FIG. 4) has 30 pins and the connector 2 (FIG. 1) has 50 even if the external dimensions in the longitudinal direction are the same 15 cm. Pins and pin numbers are different. Thus, for example, if power and ground (GND) require 5 pins each, connector 20 can only use 20 pins for signals, while connector 2 uses 40 pins for signals. Since it is possible to use an extra 20 pins, it can be used, for example, for shielding a signal line by a ground line. In addition, the distance between the pins is 0.5 mm for the connector 20, which is difficult to mount. On the other hand, the connector 2 is 0.6 mm, which makes it easier to apply a jig and reduces the amount of solder shorts. Can be expected.

[0005] If the jig can be directly applied to the pins, the number of test points can be reduced, which is advantageous for a printed circuit board with limited space, and when repair is required, the time required for repair is reduced. Can be expected. Also, for example, when a six-layer printed circuit board is required, it can be expected that a four-layer printed circuit board can be used, which can lead to a reduction in component cost.

[0006]

[Problems to be solved by the invention]

 As described above, when the 50-pin connector 2 is used, many advantages can be expected as compared with the case where the 30-pin connector 20 is used. However, the rated current per pin of the 50-pin connector 2 is, for example, 0. There is a problem that a large current cannot be passed as compared with the 30-pin connector 20 having a small current of about 35 A and a rated current per pin of about 1.0 A. As a technique relating to a connector and a printed board, "Printed board connector and component mounted body" is disclosed in Japanese Patent Application Laid-Open No. Hei 4-184888. The present invention has been made in view of the above-described circumstances, and provides a connector and a printed circuit board used for a printed circuit board that can flow a large current even if the rated current per pin is small. The purpose is to:

[0007]

[Means for Solving the Problems]

 The connector according to the first invention connects a circuit on a printed circuit board to an external device or another printed circuit board by connecting a plurality of pins respectively connected to the circuit, a plurality of terminals to be brought into contact with the pins, and the terminals. In the connector connected with the plurality of electric wires, the plurality of ends of the pins are commonly connected in accordance with the amount of current to flow.

In this connector, a circuit on a printed board and an external device or another printed board are connected to a plurality of pins connected to the circuit, a plurality of terminals to be brought into contact with the pins, and the terminals. Connected with multiple wires. A plurality of pins are connected at one end in common according to the amount of current to flow, so a large current can flow even with a connector with a small rated current per pin.

A printed circuit board according to a second aspect of the present invention includes a hole or a through hole penetrating both sides of the printed circuit board, and the connector according to claim 1, wherein the pins of the connector correspond to the amount of current to flow. The plurality of ends are commonly connected through the holes or through holes.

In this printed circuit board, the hole or the through hole penetrates both sides thereof, and is provided with the connector according to claim 1. The pins of the connector have a plurality of ends commonly connected through holes or through holes in accordance with the current flow to flow, so even if the rated current per pin is small, a large current may flow. At the same time, the length of the electric wires connecting the pins in common can be shortened.

[0011]

[Embodiment of the invention]

 Hereinafter, the present invention will be described with reference to the drawings showing an embodiment thereof. Embodiment FIG. 1 is an explanatory diagram showing the configuration of an embodiment of a connector and a printed circuit board according to the present invention. In this connector, a 50-pin connector 2 is mounted on a printed circuit board 1. The connector 2 has 25 pins arranged in two rows and is used for connection between a 40-pin IC 3 and the outside. Each pin is indicated by a circle. The interval between the pins of the connector 2 is 0.6 mm (however, the pitch between opposing pins in the longitudinal direction of the connector 2 is 0.3 mm).

For example, when the rated current per pin of the connector 2 is 0.35 A and the rated current of the IC 3 is 1 A, the three adjacent pins 6, 7, 8 are connected to the through-hole or the hole 4. 5 (through-hole for double-sided board, hole for single-sided board) and common connection by electric wire. When common connection between the pads on the printed circuit board 1 is possible, the pads are commonly connected without passing through the through holes or the holes 4 and 5.

FIG. 2 shows that, for example, when the rated current per pin of the connector 2 is 0.35 A and the rated current of the IC 3 is 1.8 A, five adjacent pins 6, 7, 8, and 9 are provided. , And 10 are commonly connected by electric wires through through holes or holes 4 and 11. When common connection between pads on the printed circuit board 1 is possible, the pads are commonly connected without passing through the through holes or holes 4 and 11. In the above embodiment, the case of the power supply terminal has been described, but the same applies to the case of the ground terminal.

[0014]

[Effect of the invention]

 According to the connector of the first invention, a large current can flow even with a connector having a small rated current per pin.

According to the printed circuit board of the second invention, a large current can flow even with a connector having a small rated current per pin, and the length of electric wires connecting the pins in common can be shortened.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of an embodiment of a connector and a printed circuit board according to the present invention.

FIG. 2 is an explanatory diagram showing a configuration of an embodiment of a connector and a printed circuit board according to the present invention.

FIG. 3 is a perspective view showing a connector and a printed circuit board.

FIG. 4 is an explanatory diagram for explaining a conventional connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printed circuit board 2 Connector 3 IC 4,5,11 Through-hole or hole 6,7,8,9,10 pin

Claims (2)

[Utility model registration claims] 1. A plurality of pins connected to a circuit on a printed circuit board and an external device or another printed circuit board, a plurality of terminals to be brought into contact with the pins, and a plurality of electric wires connected to the terminals. And a connector having a plurality of ends commonly connected to each other in accordance with an amount of current to flow. 2. A connector according to claim 1, further comprising a hole or a through-hole penetrating both sides thereof, and a pin of the connector having a plurality of one ends each having a plurality of ends depending on the amount of current to flow. A printed circuit board commonly connected through the holes or through holes.