JPH0718136Y2 - Chip component mounting terminal - Google Patents

Description

[Detailed Description of the Invention] [Overview] Regarding a terminal for mounting a chip component on a printed circuit board, a connection electrode for the chip component is mounted for the purpose of enabling additional mounting of a small chip component after the mounting of the component on the printed circuit board is completed. A flat surface portion to be connected with the flat surface portion, protruding from one edge portion of the flat surface portion and bent and provided at a right angle, inserted and fixed in an unconnected through hole formed in a printed circuit board, and a tip of a wiring member is connected by insertion soldering, It is composed of a split tubular connecting piece.

[Industrial application field]

The present invention relates to a chip component mounting terminal of a printed circuit board.

Most current electronic devices have a printed circuit board mounting circuit configuration, and this printed circuit board mounting method has little variation in characteristics due to manufacturing work, and it is easy to automate the work, and is suitable for both mass production and various types of small-quantity production. It is a mounting method
Widely used.

Higher density packaging is being promoted along with miniaturization and higher performance of parts.

However, in the initial stage of manufacturing and the stage of switching parts,
It may be necessary to change the circuit after mounting is completed,
It is required to be able to deal with this change.

[Conventional technology]

FIGS. 2 (a) to 2 (c) show an example of changing a conventional printed board.

Due to high-density mounting and high performance, the components mounted on the printed circuit board tend to use surface mounted type terminal mounted components and chip components without terminals in addition to the conventional lead terminal mounted components. .

However, since it is necessary to manually change the circuit after the mounting is completed, it is difficult to handle a small chip component, and a lead terminal-equipped component is mainly used.

This circuit modification has been performed as shown in FIGS. 2 (a) to (c).

FIG. 9A shows a case where a component 95 with lead terminals is added, in which connection lands 83 connected to the wiring pattern provided on the printed circuit board 8 are arranged corresponding to the lead terminals 96 of the component 95. The lead terminal 96 of the additional component 95 is inserted into the connection hole 81 opened in each connection land 83, and fixed to the connection land 83 by soldering.

FIG. 7B shows a case where the circuit is changed by cutting and removing a part of the wiring pattern 84 of the printed circuit board 8.

FIG. 7C shows a case where a circuit is added by using the wiring material 7, and the insulating coating is stripped at both ends of the wiring material 7, and the exposed core wire is connected to a predetermined circuit at any one of the connection land 83 positions.
The lead terminals 96 soldered there are entangled and soldered.

The circuit is changed by the combination of the above figures (a) to (c).

[Problems to be solved by the device]

However, the addition of the component 95 is against the high-density mounting, and therefore a large mounting space must be allocated.

The addition of component 95 to the circuit that is unpredictable makes it difficult to mount.

There are problems such as.

In view of such a problem, the present invention has an object of enabling a small chip component to be additionally attached after the components have been mounted on a printed circuit board.

[Means for Solving the Problems]

The above-mentioned purpose is, as shown in FIG. 1, a flat surface portion 2 for mounting and connecting the connection electrodes 91 of the chip component 9.
And the flat portion 2 is provided so as to project from one edge of the flat portion 2 and bent at a right angle, and is inserted and fixed in an unconnected through hole 82 formed in the printed circuit board 8, and the tip of the wiring member 7 is connected by insert soldering. This is achieved by the chip component mounting terminal 11 of the present invention, which comprises a connecting piece 31 having a cylindrical shape.

[Action]

That is, the connection piece 31 can be inserted into the through hole 82 and the terminal 11 can be fixed to the printed circuit board 8. In this state, the flat surface portion 2 is also arranged corresponding to the connection electrode 91 of the chip component 9, so that the chip component 9 can be installed and connected.

The terminal 11 is used when the addition of the chip component 9 cannot be predicted, and the connection piece 31 is inserted and fixed in the unconnected through hole 82 formed at an arbitrary position suitable for the work on the printed circuit board 8. A wiring pattern 84 of a circuit in which one end of the material 7 is connected by soldering and the other end is added as shown in FIG.
And the connection electrode 91 of the chip component 9 is connected to the flat surface portion 2.

For the plurality of terminals 11 for the same chip component 9, it is essential that the respective flat surface portions 2 be aligned on the same plane.

Thus, it becomes possible to additionally mount a small chip component after the component mounting on the printed circuit board is completed, and the mounting space can be greatly reduced.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. The same reference numerals denote the same objects throughout the drawings. FIG. 1 is a block diagram of an embodiment of the present invention.

The embodiment of the present invention is as shown in FIG.
obtained by molding a brass plate of m thick, planar portion 2 is a 4 mm ^□, the connection piece 31 bent at a right angle to the molded protruding in the extending direction of one edge to the cylindrical 1.35φ × 2.5mm are formed integrally is there.

This connecting piece 31 is a 1.2 m unconnected piece that can be attached to the printed circuit board 8.
It is a split tube so that it can be pushed into the through hole 82 of mφ and fixed by receiving a contracting force of 1.2 mm from the outer diameter of 1.35 mm.

After fixing the terminals 11 by aligning the flat surface portions 2 for the same chip component 9 on the same surface, the core wire of the other end of the wiring material 7 whose one end is connected to the wiring pattern of the designated circuit is exposed, and a predetermined connecting piece is formed. Insert into the cylinder of 31 and connect with solder.

Next, the designated chip component 9 is placed, and each connection electrode 91 and the flat surface portion 2 are soldered and fixed to each other.

The above-mentioned embodiments show examples, and the shape, size, and material of each part are not limited to those described above.

For example, the shape of the flat portion 2 may be rectangular or trapezoidal,
Its size is not limited to 4 mm. Also, the connection piece 31
The shape is not cylindrical There is no problem with a tubular shape having an arbitrary cross-section such as a Δ shape.

[Effect of device]

As described above, according to the present invention, after the mounting of the components on the printed circuit board is completed, it is possible to additionally mount a small chip component by changing the circuit, which can greatly contribute to the reduction of the mounting space, and its practical effect is remarkable.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a modification of a conventional printed board. In the figure, 2 is a plane portion, 7 is a wiring member, 8 is a printed circuit board, 9 is a chip component, 11 is a terminal, 31 is a connecting piece, 82 is a through hole, 83 is a connection land, 84 is a wiring pattern, and 91 is a connection. Electrode, 95 is a part,
96 is a lead terminal.

Claims (1)

[Scope of utility model registration request] 1. A flat surface portion (2) on which a connection electrode (91) of a chip part (9) is placed and connected, and a printed circuit board (2) provided at one edge portion of the flat surface portion (2) and bent at a right angle. No connection through hole (8)
A terminal for mounting a chip component, comprising: a split tubular connection piece (31) which is inserted and fixed in 2) and the tip of a wiring material (7) is insert-soldered and connected.