JPS6214666Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a series of electronic components in which a cylindrical electronic component, such as a cylindrical resistor or capacitor, is equipped with lead wires on both end faces in the axial direction, and is held on a taping member by the lead wire portion. Regarding.

Conventionally, a cylindrical electronic component having lead wires on both end faces in the axial direction, for example, in the case of a cylindrical capacitor, as shown in FIG. A pair of electrodes 2 and 3 are formed on the outer circumferential surface of the cap, and metal caps 4 and 5 are press-fitted into both ends in the axial direction to be electrically connected to the electrodes 2 and 3, respectively. ,
The structure was such that the lead wires 6 and 7 were led out in the axial direction and soldered.

However, with the above-described structure, the end base material of the dielectric 1 may be damaged when the caps 4 and 5 are press-fitted to both ends of the dielectric 1, resulting in a decrease in quality and reliability, or a decrease in workability. The drawback was that it worsened.

Furthermore, when mounting on a printed circuit board, etc., when the lead wires 6 and 7 are bent at right angles using an automatic insertion machine, the caps 4 and 5 may come off, the lead wires 6 and 7 may peel off from the caps 4 and 5, or There were also drawbacks such as cracks appearing in the curved parts.

Furthermore, since the caps 4 and 5 are required, the number of parts and man-hours increase accordingly, resulting in a disadvantage in terms of cost.

Furthermore, in order to save labor in the manufacturing process of electronic components such as capacitors and resistors, and to automatically insert them into printed circuit boards using automatic insertion machines, we have
The radial lead type electronic component series shown in the figure and the axial lead type electronic component series shown in Figure 3 are known, but the conventional electronic component series shown in Figure 1 can be of the radial lead type. This is difficult and requires an axial lead type, which also has the disadvantage of complicating the taping work and manufacturing process when connecting electronic parts.

That is, in the radial lead type electronic component chain shown in FIG. 6,7
It has a structure in which a large number of tapes are held at regular intervals while being drawn out in the radial direction, and these are wound around a winding frame or the like.

On the other hand, in the axial lead type electronic component series shown in FIG. 3, the lead wires 6 and 7 of the electronic component 9 are laterally taped between two taping members 8A and 8B, as described above.

When comparing the two types of electronic component chains mentioned above, the radial lead type electronic component chain is superior in that it is easy to tape the electronic components and can maintain the taped state from the beginning to the end of the production line. Superior to axial lead type electronic components.

However, conventional cylindrical electronic components have lead wires 6,
7 is led out in the axial direction, it is difficult to use a radial lead type, and there is a drawback that an axial lead type has to be used.

The present invention eliminates the above-mentioned drawbacks, does not cause damage to electronic component substrates, caps falling off, or peeling or cracking of lead wires, and provides high quality.
The purpose is to provide a series of highly reliable and inexpensive radial lead type electronic components.

In order to achieve the above object, the electronic component series according to the present invention has a cylindrical element body having a substantially circular through hole passing through it in the axial direction. An electronic component having electrodes formed on both end surfaces, one end bent into a hook shape and hooked to the inner wall surface of the through hole of the electronic component, and fixed to the electrodes on both end surfaces of the electronic component. With,
A pair of lead wires whose other ends are led out along the both end faces so as to be substantially parallel to each other in a direction that is substantially the same diameter with respect to the hole diameter of the through hole, and a retaining band and an adhesive tape. and a band-shaped taping member that is adhered and held onto the holding band using the adhesive tape.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The content of the present invention will be specifically explained in detail below with reference to the accompanying drawings, which are examples. FIG. 4A is a perspective view of an electronic component used in an electronic component series according to the present invention;
Figure B is also a sectional view thereof. In this embodiment, end electrodes 12 and 13 are provided on both axial end surfaces of a dielectric ceramic 11 formed in a cylindrical shape with a circular through hole 10, thereby forming a cylindrical ceramic capacitor 1.
4, and hook-shaped one ends 15a, 16a of a pair of lead wires 15, 16 are hooked into the through hole 10 of the ceramic capacitor 14, while connecting the electrodes 12, 13 formed on both end faces. It is fixed by means such as soldering, and the other end is led out along both end surfaces of the dielectric ceramic 11 in a direction substantially parallel to the diameter of the through hole 10. .

The above-mentioned ceramic capacitor 14 may be a single-layer cylindrical type in which a pair of electrode layers that substantially determine the capacitance are provided on the inner and outer peripheral surfaces of the dielectric ceramic 11, or a pair of electrode layers provided inside the dielectric ceramic 11. Various types can be used, such as a rolled laminated cylindrical type with a plurality of electrode layers. Furthermore, the invention is not limited to ceramic capacitors, but can be similarly applied to capacitors or resistors using other dielectric materials.

The above-mentioned electronic component does not require a cap, which was indispensable in conventional electronic components of this type.
Accidents such as damage to the base of electronic components and falling off of caps due to press-fitting of caps are eliminated, improving quality and reliability. It also helps reduce costs by reducing the number of parts and man-hours. Also, lead wire 1
5 and 16 are pulled out in the same direction parallel to both end faces in the axial direction, and when mounted on a printed circuit board etc.
Since it can be mounted immediately without bending the lead wires 15 and 16, the mounting work is simplified and automatic insertion by an automatic insertion machine is facilitated, and at the same time, accidents such as peeling and falling of the lead wires and cracks are completely prevented. can do.

FIGS. 5 a1 to a4 are diagrams showing the manufacturing process of an electronic component series according to the present invention using the electronic components shown in FIG. 4.

First, as shown in FIG. 5a1, a U-shaped lead wire 17 with ends 17a and 17b bent inward to form a hook is placed on a taping member 8 consisting of a retaining band 8a and an adhesive tape 8b. Tape the pitch at a distance of d ₁ , and then
2, the ends 17a, 1 of the lead wire 17
While opening 7b outward, attach the electronic component 18 as shown in Fig. 5 a3, then perform necessary treatments such as soldering and insulating coating, and then attach the lead as shown in Fig. 5 a4. The curved portion 17c of the wire 17 is cut. As a result, a radial lead type electronic component series as shown in FIG. 6 can be obtained.

Here, as shown in FIG. 6, the lead wire 17
When the electronic component 18 is hung on the lead wire 17
Due to the spring action, the electronic component 18 is reliably held between the tip portions 17a and 17b of the lead wire 17, and there is no possibility of the electronic component 18 falling off.
Furthermore, even if the axial length of the electronic component 18 changes, it has the advantage that it can be easily adapted by appropriately selecting the spring action of the lead wire 17 or the wire spacing F.

Further, as shown in FIG. 4, a pair of lead wires 1
5 and 16 are bent in a hook shape from one end portion 15a and 16a, and the other end side is led out in a direction substantially parallel to the same diameter direction with respect to the hole diameter of the through hole 10, so that the radial - In the case of a series of lead-type electronic components, the lead wires 17 that form the pair of lead wires 15 and 16 may be curved in the same plane, without creating a step on the adhesive surfaces of the retaining band 8a and the adhesive tape 8b. , can be held flat. Therefore, the adhesive tape 8b comes into close contact with the holding band 8a, preventing the lead wire 17 from peeling off,
The electronic component 18 can be held securely.

Furthermore, as shown in FIG. 4, the through hole 10 has a substantially circular hole shape, and a pair of lead wires 15, 16
has a structure in which the tip portions 15a and 16b bent into hook shapes are hung on the inner wall surface of the through hole 10, so when forming a radial lead type electronic component chain, the electronic component 18 is not exposed to the action of gravity. Therefore, when the electronic component 18 is suspended from the tips 17a and 17b of the lead wire 17, even if the supporting position of the electronic component 18 deviates as shown in FIG. 7A, the lead wire 17 is suspended as shown in FIG. 7B. Tips 17a, 17b and circular through hole 1
Circumferential slippage occurs between the lead wire 17 and the inner wall surface of the lead wire 17 and is automatically corrected, so that the mounting position of the electronic component 18 relative to the lead wire 17 is always maintained at an appropriate position.

8A and 8B are a perspective view and a sectional view of another embodiment of an electronic component used in an electronic component series according to the present invention. The feature of this embodiment is that the lead wires 6 and 7 are provided with curved parts 6b and 7b at their tips to sandwich the edges of the ceramic capacitor 14, which is an electronic component. It has improved support stability. It goes without saying that this embodiment can also provide effects similar to those of the previously described embodiment.

As described above, the electronic component chain according to the present invention has an element body formed in a cylindrical shape having a substantially circular through hole passing through it in the axial direction, and both ends of the element body in the axial direction where the through hole is opened. An electronic component having an electrode formed on its surface, one end bent into a hook shape and hooked to the inner wall surface of the through hole of the electronic component, and fixed to the electrode on both end surfaces of the electronic component. , a pair of lead wires whose other ends are led out along the both end faces so as to be substantially parallel to each other in a direction that is substantially the same diameter with respect to the hole diameter of the through hole, and a retaining band and an adhesive tape. Since the present invention is characterized by having a band-shaped taping member that adheres and holds the wire on the holding band using the adhesive tape, the following effects can be obtained.

(b) Caps for electronic components are no longer required, damage to electronic component bodies due to press-fitting of caps, accidents such as caps falling off, etc. are eliminated, and quality and reliability are improved.

(b) The number of parts and assembly man-hours are small, and a small and inexpensive electronic component series can be obtained.

(c) The pair of lead wires were led out along both end faces of the electronic component in the axial direction so that they were approximately parallel to each other in the direction of the same diameter with respect to the hole diameter of the through hole, so the lead wires were not bent. It can be mounted as is without any addition, simplifying the mounting work and facilitating automatic insertion by an automatic insertion machine.

(d) The hooked ends of the pair of lead wires are hooked to the inner wall of the circular through hole, so the lead wires are securely hooked and will not fall off. .

(E) The through hole of the electronic component is formed into a substantially circular hole shape, and the pair of lead wires are hooked at one end into a hook shape and hooked onto the inner wall surface of the through hole of the electronic component, and The radial lead type A series of electronic components can be obtained easily.

(f) Since the pair of lead wires are led out approximately parallel to the same diameter direction with respect to the hole diameter of the through hole, when obtaining a radial lead type electronic component series, the leads that become the pair of lead wires are The wire can be curved in the same plane, and can be held flat on the adhesive surface of the holding band and the adhesive tape without creating a step. Therefore, the adhesive tape comes into close contact with the holding band, prevents the lead wire from peeling off, and makes it possible to securely hold the electronic component.

(g) The through-hole is approximately circular in shape, and the pair of lead wires has hook-shaped ends that are hooked onto the inner wall of the through-hole, so it is not a radial lead type electronic component chain. When the electronic component is suspended from the tip of the lead wire due to the action of gravity, even if the supporting position of the electronic component shifts,
Circumferential slippage occurs between the tip of the lead wire and the inner wall of the circular through hole, and the misalignment is automatically corrected, ensuring that the electronic components are always installed in the correct position relative to the lead wire. Retained.

[Brief explanation of drawings]

Figure 1 is a partial cross-sectional view of a conventional electronic component, Figure 2 is a front view showing a part of a radial lead type electronic component chain, and Figure 3 is a part of an axial lead type electronic component chain. 4A is a front view, and FIG. 4A is a perspective view of electronic components constituting the electronic component series according to the present invention
Figure B is a sectional view of the same, Figures 5 a1 to a4 are process diagrams for manufacturing a radial lead type electronic component chain according to the present invention, Figure 6 is a partially enlarged view of the electronic component chain, and Figure 7 Figures A and B are diagrams for explaining the operation of the electronic component chain according to the present invention, and Figures 8A and B are perspective views and cross-sectional views of other embodiments of electronic components that constitute the electronic component chain according to the present invention. be. 8... Taping member, 8a... Retention band, 8b
... Adhesive tape, 10 ... Through hole, 11 ... Dielectric ceramic, 12, 13 ... Electrode, 14, 18 ... Electronic component, 15, 16 ... Lead wire.

Claims (1)

[Claims for Utility Model Registration] (1) The through hole 1 of the element body 11 formed in a cylindrical shape having a substantially circular through hole 10 penetrating in the axial direction.
Electrodes 12, 1 are provided on both end faces in the axial direction with 0 open.
3, one end portion 15a,
16a is bent into a hook shape and hung on the inner wall surface of the through hole 10 of the electronic component 14, and the electrodes 12,
a pair of lead wires 15 and 16, which are fixed to the lead wires 13 and led out so that the other ends are substantially parallel to each other in a direction that is substantially the same diameter direction with respect to the hole diameter of the through hole 10 along the both end surfaces; The lead wire 1 includes a retaining band 8a and an adhesive tape 8b.
5 and 16 on the holding band 8a with the adhesive tape 8b. (2) The series of electronic components according to claim 1, wherein the element body 11 of the electronic component 14 is made of dielectric ceramic.