JP2002151817A - Jumper lead and electronic circuit device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve mounting efficiency of a jumper lead at mounting of the jumper lead on a printed board by giving degrees of freedom to wiring. SOLUTION: This chain type jumper lead 1 is composed of one metal conductor and has bent U-shaped leg sections 1a-1e, at positions where the lead 1 is inserted into holes H1-H5 of a printed board 2. The board 2 has holes H1-H7, and the leg sections 1a-1e of the lead 1 are respectively inserted into the holes H1-H5 or H1-H3, H6, and H7 in connected states and fixed with solder 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jumper lead of a chain type and an electronic circuit device using the same, and more particularly, to a jumper lead capable of increasing the mounting efficiency of a jumper lead inserted into a printed circuit board or the like, and a jumper lead thereof. And an electronic circuit device using the same.

[0002]

2. Description of the Related Art Conventionally, jumper leads have been used for wiring pattern circuits in a printed circuit board, and only two holes are set for one jumper lead in a linear shape. And a plurality of pitches are selected as necessary, and the lengths of the pitches are limited. In addition, the jumper lead inserted from one side of the printed circuit board is on the opposite side (for example, the solder side).
Clamp the feet of the jumper lead to secure it to the fixture. Also, in an example used in actual equipment, a large number of jumper leads of the same line are arranged vertically and horizontally in a printed circuit board to form a circuit.

FIGS. 5 and 6 are plan views showing an example of a conventional electronic circuit device using a jumper lead. FIG. 5 is a view from one side of a printed circuit board, and FIG. FIG. 4 is a rear view as viewed from the side of FIG. As shown in FIGS. 5 and 6, four jumper leads 11 are provided in eight holes H11 to H18 set in a series connection to the printed circuit board.
14 are linearly inserted and fixed, the holes H11 to H18 occupy a large portion, so that it is impossible to efficiently provide a wiring pattern. In the example of the electronic circuit device of FIG. The number of other wiring patterns that can pass between the jumper leads 11 to 14 is limited to 32.

[0004]

However, in the case of a jumper lead that is linear and has a limited insertion pitch as in the above-described conventional example, inefficient jumper wiring is imposed due to limitations on the mounting of the printed circuit board on the chassis and limitations on the shape. Or the printed circuit board itself must be changed in specifications (for example, changed from single-sided specification to double-sided specification), which has led to an increase in cost.

The present invention has been made in view of such a situation, and has as its object to provide a degree of freedom in wiring by jumper leads and improve mounting efficiency.
It is another object of the present invention to manufacture a jumper lead having a simple configuration by a simple method, thereby easily forming and providing a jumper lead having an appropriate length.

[0006]

SUMMARY OF THE INVENTION The present invention provides a means for solving the above-mentioned problems, and a first technical means for that purpose is to form a single conductive wire into a hole provided in a printed circuit board. The three or more legs to be inserted are jumper leads formed by bending.

According to a second technical means, in the jumper lead of the first technical means, at least an intermediate leg is formed in a U-shape.

[0008] The third technical means consists of one conductor,
The electronic circuit device is characterized in that jumper leads having three or more legs formed by bending are inserted and fixed in three or more holes provided on a printed circuit board in a continuous series connection state.

A fourth technical means is the electronic circuit device according to the third technical means, wherein a portion of the jumper lead inserted into the hole is formed in a U-shape.

A fifth technical means is the electronic circuit device according to the third or fourth technical means, wherein the three or more holes provided in the printed board are in a state where the jumper lead is bent in the plane of the printed board. It is characterized by being arranged so that it becomes.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an electronic circuit device using a jumper lead according to the present invention; FIG. FIG.
1 is a plan view showing an electronic circuit device in which a chain type jumper lead according to the present invention is mounted on a printed circuit board. In the printed circuit board 2, holes H1, H2, H3, H4, and H5 are provided at five positions on a straight line for the route 1, for example, at positions where the jumper leads 1 are mounted, and holes H1, H2, H3, and H4 are provided. , H5 are mounted with one jumper lead 1 described later connected thereto. Holes H6 and H7 are provided on the printed circuit board 2 for the route 2 in a direction oblique to the hole H3, and one jumper lead 1 is connected to the holes H1, H2, H3, H6 and H7, and the hole H3 is formed. , H6.

FIG. 2 is a cross-sectional view along the jumper lead 1 when the jumper lead 1 is mounted on the route 1. The jumper lead 1 is made of a single conductive wire made of metal, and has holes H1, H2, H3,
Legs 1a, 1b, 1c,
1d and 1e are bent and formed. Legs 1a, 1e at both ends inserted into holes H1, H5, H7 of jumper lead 1.
Is bent into an L-shape, and the intermediate legs 1b, 1c, 1d inserted into the holes H2, H3, H4, H6 are bent into a U-shape.

The legs 1a, 1 at both ends of the jumper lead 1
In the holes H1 and H5 of the printed circuit board 2 into which e is inserted and fixed, the soldering surface side on which the legs 1a and 1e are inserted is clinched and fixed inside to fix the printed circuit board 2 respectively. In the holes H2, H3, H4, the leg portions 1b, 1c, formed by bending the jumper lead 1 into a U-shape.
1d is inserted so as to protrude from the solder surface of the printed circuit board 2 by about several millimeters. Legs 1b, 1c, 1d
Are formed in a U-shape, so that the holes H2, H
3, H4, the legs 1b, 1c, 1d are elastically fixed. Holes H1 to H1 provided in the printed circuit board 2
Regarding the shape of H7 and the shape of the land, the holes H1, H5
Are formed in a perfect circle, and the holes H2, H3, and H4 are each formed in an elliptical shape. As described above, the printed circuit board 2
After the jumper lead 1 is fixed in a temporarily fixed state, the legs 1 of the jumper lead 1 are fixed using an automatic soldering device or the like.
The solders a to 1e and the lands of the holes H1 to H7 are soldered, and the solder 3 is formed at the joint.

FIG. 3 shows patterns L1, L2, L3, L4 provided around the jumper lead 1 as viewed from the solder surface.
For comparison, the distance between the holes H11 and H18 of the conventional example shown in FIG. 5 and the widths of the wires forming the wiring patterns L11, L12, L13, and L14 therebetween are the same for comparison. The case will be described. Hole H1, H
The wiring patterns L1, L2, L3, and L4 formed between the holes H2, H3, H4, and H5 are respectively eight wiring patterns L1 between the holes H1 and H2, and the wiring pattern L between the holes H2 and H3.
2 are 15 lines, and the wiring pattern L3 between the holes H3 and H4 is 12
Nine wiring patterns L4 between holes H4 and H5 can pass a total of 44 patterns, and three jumper connection patterns (holes H2 and H2) as relay points.
H3, H4).

FIGS. 4A and 4B show an electronic circuit device in which jumper leads are mounted on a printed circuit board having a large number of holes arranged so that a line connecting three or more holes is bent. It is a figure showing the example of. And FIG.
FIG. 4A shows an example in which one jumper lead 4 having eight legs is mounted on a circular printed circuit board 5 having eight holes provided on an arc along a circle. (B)
Is an example in which two jumper leads 6a and 6b each having six legs are mounted in a crank shape on a crank-shaped printed circuit board 7 in which six holes are provided in two rows in a crank shape.

[0016]

As is apparent from the above description, the present invention has the following effects. Since the jumper lead according to the first aspect of the present invention has a structure in which three or more legs are formed by bending one conductor, it can be manufactured by a simple process such as bending using one conductor as a raw material. ,
It is possible to flexibly cope with a change in specifications of an electronic circuit device.

In the jumper lead according to the second aspect of the present invention, since the intermediate leg is formed in a U-shape, when the jumper lead is inserted into a hole provided in the printed circuit board, it is elastically held, and is mounted. Work becomes easy.

According to a third aspect of the present invention, there is provided an electronic circuit device in which a jumper lead made of one conductive wire is inserted and fixed in three or more holes provided on a printed circuit board in a continuous series connection state. Therefore, when compared with the conventional example as shown in FIGS. 5 and 6, the number of holes for inserting the jumper leads can be reduced, and the space for clinching for fixing the jumper leads on the solder side can also be reduced. The number of patterns that can be drawn out from between the leads is increased, and the mounting efficiency is increased. As a result, the size of the printed circuit board can be reduced.

The electronic circuit device according to the fourth aspect of the present invention has a configuration in which the legs of the jumper lead are formed in a U-shape or the like. The holes provided in the substrate are elastically engaged with each other and are temporarily fixed, so that the mounting operation is facilitated.

In the electronic circuit device according to the fifth aspect of the present invention, since the line connecting the three or more holes provided on the printed board is formed in a bent state, the jumper leads can be formed in various shapes. It can be mounted in various shapes on a printed circuit board. In addition, since it can be mounted so as to be patterned even on a printed circuit board such as a circular shape or a crank shape used as a relay board in equipment,
For example, if it is not possible to secure a sufficient pattern for the current capacity, it is possible to substitute a jumper lead, and the degree of freedom in device development is expanded.

[Brief description of the drawings]

FIG. 1 is a plan view showing a jumper lead of the present invention and an electronic circuit device using the jumper lead.

FIG. 2 is a cross-sectional view along a jumper lead of the electronic circuit device shown in FIG.

FIG. 3 is a rear view of the electronic circuit device shown in FIG. 1 as viewed from a solder surface.

FIG. 4 is a plan view showing an embodiment in which jumper leads are mounted on a circular printed board (A) and a crank shaped printed board (B).

FIG. 5 is a plan view when a conventional electronic circuit device is formed under the same conditions as the embodiment shown in FIG.

6 is a back view of the conventional electronic circuit device of FIG. 5 as viewed from the back.

[Explanation of symbols]

1,4,6a, 6b ... jumper lead, 1a-1e ...
Legs, 2, 5, 7 ... printed circuit board, 3 ... solder, H1
H7: holes, L1 to L4: wiring patterns.

Claims (5)

[Claims] 1. A jumper lead comprising one conductive wire, wherein three or more legs inserted into holes provided in a printed circuit board are formed by bending. 2. The jumper lead according to claim 1, wherein at least an intermediate leg is formed in a U-shape. 3. A jumper lead made of one conductive wire and formed by bending at least three legs is inserted and fixed in a state of being connected in series to at least three holes provided on a printed circuit board. An electronic circuit device, comprising: 4. The electronic circuit device according to claim 3, wherein a portion of the jumper lead inserted into the hole is formed in a U-shape. 5. The printed circuit board according to claim 3, wherein the three or more holes provided in the printed circuit board are arranged such that the jumper leads are bent in the plane of the printed circuit board. Electronic circuit device.