JPH10112578A - Part attaching apparatus of circuit board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a part attaching apparatus of a circuit board, in which the parts are attached stably to the flexible circuit board to make the density of its wiring patterns improvable. SOLUTION: Storing the intermediate portion of a jumper wire 2 to be a part in a groove 4a, formed on the bottom surface of a holder 4 with an electric insulating quality, leg portions 2a formed curvedly downward from both the end portions of the jumper wire 2 are passed fixedly through through-holes 1a of a circuit board 1. Further, passing the intermediate portion of a jumper wire 3 to be a part through a through-hole 4b formed in the intermediate portion of the height of the holder 4 so as to be orthogonal to the groove 4a, leg portions 3a formed curvedly downward from both the end portions of the jumper wire 3 are passed fixedly through through-holes 1c of the circuit board 1. Thereby, the jumper wires 2, 3 can be fastened firmly to the flexible circuit board 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible wiring board used for an instrument or the like, comprising a plurality of electronic components such as jumper wires, diodes and fixed resistors, and a plurality of electronic components and jumper wires. The present invention relates to a component mounting device for a wiring board that fixes components via a holder having electrical insulation.

[0002]

2. Description of the Related Art In a flexible wiring board, a plurality of components such as a jumper wire and an electronic component are fixed at an appropriate interval so as not to come into contact with each other so as to be crossed or parallel. However, due to variations etc.,
When the number of components to be installed increases and the installation site becomes insufficient, it is necessary to change the shape of the wiring board and the case assembled thereto.

[0003] However, changing the shape of the wiring board or the case increases the manufacturing man-hour and cost. Therefore, the wiring pattern of the wiring board is changed so as to increase the density of the wiring pattern, thereby coping with the increase in the number of parts to be installed. However, parts come close to each other.

For this reason, as shown in FIG. 13, a jumper wire 11 and a covered electric wire 12 are fixed to a wiring board 10 so as to intersect with each other, or as shown in FIG. The jumper wires 11 are arranged and fixed in parallel in the horizontal direction to prevent electrical short circuit.

[0005]

However, when vibration is applied to a flexible wiring board, there is a possibility that closely fixed components may swing and interfere with each other.

In view of the above, the present invention secures a plurality of components such as electronic components and jumper wires without causing mutual interference due to vibration even when the density of a wiring pattern on a flexible wiring board is increased. It is an object of the present invention to provide a device for mounting a component on a wiring board, which is capable of improving mounting stability.

[0007]

In order to achieve the above object, the invention according to claim 1 includes a plurality of components such as jumpers, electronic components such as diodes and fixed resistors, and a plurality of components such as electronic components and jumpers. What is claimed is: 1. A component mounting device for a wiring board which is routed to a wiring board via a holder having electrical insulation, wherein a plurality of grooves or through holes in which the components are inserted and mounted in the holder are formed in multiple stages. I have.

Therefore, according to the first aspect of the present invention, even when the density of the wiring pattern is increased, the components are inserted and mounted in a plurality of stages in the plurality of grooves or through holes of the holder and fixed to the wiring board. The components such as electronic components and jumper wires can be firmly fixed on the wiring board having the property without wobbling or mutual interference due to vibration, and the mounting stability of the components can be enhanced.

According to a second aspect of the present invention, there is provided the component mounting apparatus for a wiring board according to the first aspect, wherein the holder is formed of an integrally formed block-like body, and the plurality of grooves or through holes are provided. The hole is formed so as to be parallel to the upper and lower portions of the block-shaped body.

Therefore, according to the second aspect of the present invention, a plurality of components are fixed to the wiring board in the upper and lower directions in parallel via the holder, so that the two-dimensional components can be saved in parallel. Space can be achieved.

According to a third aspect of the present invention, there is provided the component mounting apparatus for a wiring board according to the first aspect, wherein the holder comprises:
An upper holder and a lower holder are vertically divided and connected to each other so as to be relatively rotatable about a vertical axis, and the grooves or through holes are formed in the upper and lower holders. It is characterized by:

According to the third aspect of the present invention, the upper and lower holders are rotated relative to each other so that the crossing angles of the grooves or through holes formed in the holders are respectively set to the upper and lower parts. The angle of intersection of the parts to be routed can be matched.

According to a fourth aspect of the present invention, there is provided the component mounting apparatus for a wiring board according to the third aspect, wherein the upper and lower holders have a snap boss formed on one side and a fitting formed on the other side. By being fitted in the concave portion, the snap boss is connected to each other so as to be able to rotate around the snap boss.

According to the fourth aspect of the present invention, it is possible to easily form a holder having upper and lower holder portions which can be relatively rotated by fitting the snap boss into the fitting concave portion. At this time, the shape and size of the snap boss and the fitting concave portion are made common among a plurality of different upper holder portions and between the lower holder portions, so that compatibility between the upper and lower holder portions can be obtained. With this compatibility, various holders can be easily configured. For example, holders having different sizes (height and / or diameter), or holders having different cross-sectional shapes or cross-sectional areas of grooves or through holes formed in the upper and lower holder portions can be easily formed.

According to a fifth aspect of the present invention, there is provided the component mounting apparatus for a wiring board according to any one of the first to fourth aspects, wherein a projection is provided on an outer peripheral surface of the holder, and the wiring board is mounted on the holder. An accommodation space for accommodating the holder is formed in a case to be laid, and the projection is brought into contact with an inner peripheral surface of the accommodation space, and the holder is pressed into the accommodation space.

According to the fifth aspect of the present invention, when the wiring board is laid on the bottom surface of the case, the protrusion is brought into contact with the inner peripheral surface of the housing space, and the holder is pressed into the housing space to thereby press the holder into the housing space. It can also be used as a coupling member with the case.

[0017]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 to 4 show a first embodiment of the present invention. In these figures, reference numeral 1 denotes a flexible wiring board, and reference numerals 2 and 3 denote the wiring board 1 so as to intersect with the wiring board 1. The jumper wire as a part is shown.

The one jumper wire 2 has an intermediate portion formed on the bottom surface of a holder 4 made of a block (in the present embodiment, a column) formed integrally with an electrically insulating material such as a synthetic resin. The legs 2a, which are accommodated in the formed grooves 4a and are bent below both ends, are penetrated from the through holes 1a of the wiring board 1 to the conductive pads 1b on the back surface of the wiring board 1 and are joined by solder 5. Thereby, it is fixed to the wiring board 1 via the holder 4.

The other jumper wire 3 has its middle portion penetrated through a through hole 4b formed at the middle of the height of the holder 4 so as to intersect with the groove 4a, and is bent downward from both ends. The leg 3a is penetrated from the through hole 1c of the wiring board 1 to the conductive pad 1d on the back surface of the wiring board 1, and the solder 6
And is fixed to the wiring board 1 via the holder 4.

Then, the holder 4 is inserted into the housing space 7a through the opening on the bottom side of the case 7 and the jumper wires 2 and 3 protruding outward from the holder 4 are inserted into the housing space from the opening on the bottom side of the case 7. The wiring board 1 is laid on the bottom surface of the case 7 by being inserted into accommodation grooves 7b and 7c formed radially around the periphery 7a.

According to the structure of the above embodiment, when assembling the jumper wires 2 and 3 to the wiring board 1, both ends of the jumper wire 3 protruding from the holder 4 through the through hole 4 b of the holder 4 are inserted. Is bent downward to form the leg 3a.

The legs 2 at both ends of the jumper wire 2
a through the through-hole 1a of the wiring board 1 and the conductive pad 1b
And a joint 5 with a solder 5, cover the middle part of the jumper wire 2 with the groove 4 a of the holder 4, and insert the leg portions 3 a at both ends of the jumper wire 3 into the through hole 1 c of the wiring board 1 so that the conductive pad 1 d In this case, the jumpers 2 and 3 can be firmly fixed to the flexible wiring board 1 via the holder 4 without shaking.

FIGS. 5 to 7 show a second embodiment of the present invention, in which a projection 4c is provided on the outer peripheral surface of the holder 4 shown in the first embodiment, and the wiring board 1 is laid on the bottom surface of the case 7. At this time, the jumper wires 2 and 3 assembled via the holder 4 are inserted into the housing grooves 7b and 7c (see FIG. 3) of the case 7, and the protrusions 4c are brought into contact with the inner peripheral surface of the housing space 7a. Then, by pressing the holder 4 into the accommodation space 7a,
The holder 4 can be used also as a connecting member to the case 7.

FIG. 8 shows a third embodiment of the present invention, wherein a large number of grooves 4a and through holes 4b of a holder 4 are formed vertically so as to be parallel to each other, and jumper wires 2 and 3 are connected to a wiring board. When the jumper wires 2 and 3 are fixed in parallel to each other via the holder 4 vertically, space saving of the jumper wires 2 and 3 which are closely arranged in parallel can be achieved.

FIGS. 9 to 12 show a fourth embodiment of the present invention. The holder 4 in the fourth embodiment has an upper holder 41 and a lower holder 42 which are vertically divided as shown in FIG. 9 and which are mutually connected so as to be able to rotate relative to each other about a vertical axis c. It is composed of The upper and lower holder portions 41 and 42 are coupled to be rotatable 360 degrees in the directions a and b, respectively. The upper and lower holder portions 41 and 42 have through holes 4b respectively.
And the groove 4a is formed so as to pass through the axis c.
Further, a projection 4c for press-fitting the holder 4 into the housing space 7a of the case 7 is formed in the upper holder portion 41.

More specifically, as shown in FIG. 10, the upper and lower holder portions 41 and 42 are formed by fitting a snap boss 8 formed on one side into a fitting recess 9 formed on the other side. It is mutually connected so that the phase body can rotate around eight.

The snap boss 8 is composed of a cylindrical portion 82 and a spherical portion 81 integrally formed at the tip of the cylindrical portion 82. The base end of the cylindrical portion 82 is located substantially at the center of the upper surface of the lower holder portion 42 (see FIG. 10 (a)) or upper holder part 4
1 (FIG. 10B) are formed integrally with each other at substantially the center of the lower surface. The fitting recess 9 has a shape corresponding to the outer shape of the corresponding snap boss 8, and the upper holder 41
The lower holder 42 is formed at an approximate center (FIG. 10 (a)) or an approximate upper center of the lower holder 42 (FIG. 10 (b)). Spherical part 81 of snap boss 8
Is formed with a split groove 81a.
Thereby, the spherical portion 81 has a snap action. In other words, the snap boss 8 pushes the spherical portion 81 into the opening of the fitting concave portion 9 with the split groove 81a closed and pushes the snap portion. It is possible to fit into the fitting recess 9.

According to the fourth embodiment configured as described above, the upper and lower holders 41 and 42 are rotated in phase with each other so that the through holes 4b and the grooves 4a formed in the holders 41 and 42 are mutually connected. Can be matched with the mutual intersection angle of the jumper wires 3 and 2 routed on the upper and lower portions, respectively.

For example, as shown in FIG. 11, by rotating the upper and lower holder portions 41 and 42 relative to each other, the holder 4 is moved vertically (FIG. 11 (a) in which the through hole 4b and the groove 4a are vertically parallel. )), A right-angled crossing posture in which the through-hole 4b and the groove 4a are perpendicular to each other (FIG. 11B), or a crossing posture other than the crossing posture in which the through-hole 4b and the groove 4a cross obliquely in the vertical direction (FIG. 11 (c)).

As described above, the holder 4 of the present embodiment can adopt a posture in which all the crossing angles of the jumper wires 3 and 2 coincide with each other, thereby eliminating the necessity of variation for each wiring crossing angle. As a result, the variation can be significantly reduced.

Moreover, since the holder 4 can be constructed by merely fitting the snap boss 8 into the fitting recess 9, the structure is simple and easy to assemble.

In the holder 4 of the present embodiment, the shape and size of the snap boss 8 and the fitting concave portion 9 are made common between the plurality of different upper holder portions 41 and between the lower holder portions 42, so that the upper and lower portions are formed. Compatibility between each of the lower holder portions 41 and 42 is obtained, and various types of holders can be easily configured by this compatibility.

That is, the holder 4 shown in FIG.
5, the snap boss 8 of the lower holder portion 42 is formed so that the diameter d and the protruding height h of the spherical portion 81 are constant between the plurality of lower holder portions 42 and the fitting recess of the upper holder portion 41. 9 is formed so that the shape and size thereof are constant among a plurality of different upper holder portions 41 corresponding to the corresponding snap bosses 8, so that the common use can be achieved, and FIG. In the holder 4 shown in FIG. 5, the snap boss 8 of the upper holder portion 41 is formed so that the diameter d and the protrusion height h of the spherical portion 81 are constant among the plurality of upper holder portions 41 different from each other.
In addition, the fitting recess 9 of the lower holder 42 is formed so that its shape and size are constant between a plurality of different lower holders 42 corresponding to the corresponding snap bosses 8, thereby achieving the above-mentioned commonality. be able to.

According to the compatibility, as shown in FIG. 12, for example, a holder 4 having a diameter D and a height H ₁ (FIG. 12).
(A)) and a holder 4 having a diameter D and a height H ₂ (<H ₁ ).
(FIG. 12 (b)) can be easily configured, and even when the wiring heights of the jumper wires 2 and 3 are different, it is easy to select any one of the holders 4 and 4 having different heights. Can be handled.

Further, the holder 4 of the present embodiment can easily constitute holders having different cross-sectional shapes or cross-sectional areas of the grooves 4a or the through holes 4b formed in the upper and lower holder portions 41 and 42 due to the compatibility. This makes it possible to easily cope with components other than the jumper wires 2 and 3 such as electronic components such as diodes and fixed resistors, or electronic components and jumper wires, and securely fix them. You can also.

As described above, the holder 4 of this embodiment is compatible with the upper and lower holders 41 and 4 described above.
2 together with the relative rotation of the components (jumper wires 2, 3
) Are designed and routed on the wiring board 1.

In each of the above embodiments, two jumper wires 2 and 3 have been shown and described as an example, but three or more jumper wires can be mounted in multiple stages in a crossing or parallel manner.

The holder 4 can be formed in various shapes other than a cylinder, such as a prism, a cone, a sphere, and the like.

The holder 4 is formed using an electrically insulating synthetic resin material. Both a plastic material and a non-plastic material can be used, and among them, Duracon having excellent wear resistance is preferable as the molding material.

Further, by changing the size of the groove 4a and the through hole 4b of the holder 4 in the first to third embodiments, the electronic parts such as diodes and fixed resistors, or the electronic parts and the jumper wires are firmly fixed. You can also.

[0042]

As described in detail above, according to the present invention, the following effects can be obtained.

That is, according to the first aspect of the present invention, the density of the wiring pattern can be increased by inserting and mounting the components in the plurality of grooves or through holes of the holder in multiple stages and fixing them to the flexible wiring board. Even if it is, multiple parts such as electronic parts and jumper wires may wobble on the wiring board,
The components can be firmly fixed without mutual interference due to vibration, and the mounting stability of components can be enhanced.

According to the second aspect of the present invention, a plurality of components are fixed to the wiring board vertically and vertically via the holder, so that two-dimensional components which are closely arranged in parallel can be saved. Can be planned.

According to the third aspect of the present invention, by mutually rotating the upper and lower holder portions, the mutual intersection angle of the groove or the through hole formed in each holder portion is determined.
It is possible to match the mutual crossing angles of the components arranged on the upper and lower parts, thereby improving the degree of freedom in designing and routing the components on the wiring board.

According to the fourth aspect of the present invention, the holder having the upper and lower holders which can be relatively rotated can be easily formed by fitting the snap boss into the fitting recess. It is easy to assemble, and the shape and size of the snap boss and the fitting recess are shared between a plurality of different upper holders and between the lower holders, so that each of the upper and lower holders is Therefore, various holders most suitable for the wiring structure of components to be wired on the wiring board can be easily formed by the compatibility.

According to the fifth aspect of the present invention, when the wiring board is laid on the bottom surface of the case, the protrusion is brought into contact with the inner peripheral surface of the housing space, and the holder is pressed into the housing space, thereby providing the holder. Can also be used as a coupling member with the case.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a side view of the embodiment.

FIG. 3 is an exemplary perspective view showing a case according to the embodiment;

FIG. 4 is an exemplary sectional view in which the wiring board of the embodiment is assembled to a case;

FIG. 5 is a side view showing a holder according to a second embodiment of the present invention.

FIG. 6 is a plan view of the holder according to the embodiment.

FIG. 7 is an exemplary sectional view in which the wiring board of the embodiment is assembled to a case;

FIG. 8 is a side view showing a third embodiment of the present invention.

FIG. 9 is a perspective view showing a holder according to a fourth embodiment of the present invention.

FIGS. 10A and 10B are exploded side views of the holder of the embodiment.

11A and 11B are a side view and a bottom view for explaining the operation of the holder of the embodiment, wherein FIG. 11A is a vertical crossing state, FIG. 11B is a right angle crossing state, and FIG. Each shows a crossing state.

FIGS. 12A and 12B are side views showing another aspect of the holder of the embodiment.

FIG. 13 is a perspective view showing a conventional component mounting device for a wiring board.

FIG. 14 is a side view showing a component mounting apparatus for a different conventional wiring board.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wiring board 2, 3 Jumper wire (parts) 4 Holder 4a Groove 4b Through hole 4c Projection 7 Case 7a Housing space 8 Snap boss 9 Fitting concave part 41 Upper holder part 42 Lower holder part c Axis (of holder)

Claims (5)

[Claims] 1. A plurality of components such as jumpers, electronic components such as diodes and fixed resistors, and a plurality of components such as electronic components and jumpers are mounted on a flexible wiring board via a holder having electrical insulation. A component mounting device for a wiring board, wherein a plurality of grooves or through holes through which the component is inserted and mounted in the holder are formed in multiple stages. 2. The apparatus according to claim 1, wherein the holder is formed of an integrally formed block, and the plurality of grooves or through holes are formed to be parallel to upper and lower portions of the block. 2. The component mounting device for a wiring board according to claim 1, wherein: 3. The holder comprises an upper holder part and a lower holder part which are divided into upper and lower parts and are connected to each other so as to be relatively rotatable about a vertical axis. 2. The component mounting device for a wiring board according to claim 1, wherein the component mounting device is formed on a lower holder portion. 4. The upper and lower holder portions are connected to each other so as to be relatively rotatable around the snap boss by fitting a snap boss formed on one side into a fitting recess formed on the other side. 4. The method according to claim 3, wherein
A component mounting device for a wiring board as described in the above. 5. A housing is provided on the outer peripheral surface of the holder, and a housing space for housing the holder is formed in a case in which the wiring board is laid, and the protrusion is brought into contact with an inner peripheral surface of the housing space. 5. The component mounting apparatus for a wiring board according to claim 1, wherein the holder is press-fitted into the housing space.