JP2814944B2 - Wound component and its winding method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding component formed by winding a conductor on a bobbin, and more particularly to a structure for preventing disconnection of a conductor and a method of winding the same.

[0002]

2. Description of the Related Art Conventionally, winding of a winding component by an automatic winding machine has been generally performed. As shown in FIG. The bobbin 1 is pulled out so as to crawl in the conductive wire groove 6 formed in the bobbin 1.
It is entangled with the terminal portion 3 on the side end surface. However, since the automatic winding machine is wound with a predetermined tension, the lead wire 4 entangled with the terminal portion 3 is always pulled.

[0003]

The lead wire 4 entangled with the terminal portion 3 is finally fixed by soldering, but if the lead wire 4 is fixed in a stretched state as described above. ,
When the stress P in the direction of the arrow is applied to the terminal portion 3, an excessive load is applied to the lead wire 4, and an accident occurs in which the conductive wire extends, the wire diameter becomes thin, or the wire breaks. In particular, such accidents are likely to occur at corners where stress is likely to be applied (locations a, b, and c in the figure).

[0004] It is an object of the present invention to provide a highly reliable winding component and a winding method therefor, in which the wire 4 of the coil is slackened to prevent a disconnection accident due to stress.

[0005]

That is, among the present invention, in the invention of the winding part, in the winding part formed by winding the conductor (2) around the bobbin (1), the winding part is formed of the bobbin (1). A foldable column (8), which enables the coil lead wire (4) to be hooked, protrudes from a depression (7) formed in the wire lead-out portion (5).

[0006]

In the present invention, the method of winding a winding component is a method of winding a conductor (2) around a bobbin (1) for forming a winding component, wherein the bobbin (1) is used. The lead wire (4) of the coil is hooked on a foldable support (8) protruding from a depression (7) formed in the wire lead-out portion (5), and is stretched in a V shape. Is connected to the terminal portion (3), and then the column (8) is broken and removed in the direction opposite to the side where the lead wire (4) is hooked.

[0008]

According to the above construction, in the invention of the winding part of the present invention, the winding part is assembled by winding a conductive wire around a bobbin and projecting a lead wire at an end of the coil into a depression of a wire drawing part. After hooking the support on the support and connecting it to the terminal, the support is manually broken and removed. In this case, since the lead wire loses the hooked part and becomes loose,
The stress from the terminal portion is absorbed by the slack, and the extension and breakage of the lead wire are prevented.

Further, since the support is provided in the depression formed in the wire lead-out portion, the broken base of the support is below the base surface of the wire draw-out portion. After the support is removed, the lead wire is connected to the break base. No more getting caught.

In the invention of the method for winding a winding part of the present invention, when the support is broken in a direction opposite to a side where the lead wire is hooked, the support can be cut or removed without applying a load to the lead wire. Becomes

[0011]

FIG. 1 shows an embodiment of a winding component according to the present invention.
FIG. 2 is a perspective view showing the appearance of a terminal of a coil lead wire, FIG. 2 is a sectional view thereof, and FIG. 3 is a plan view.

As shown in FIG. 1, the winding part according to the present invention forms a coil by winding a conducting wire 2 around a resin-made square bobbin 1 as a winding core, and pulls out the winding end as a lead wire 4. Is connected to a terminal portion 3 provided on the side end surface of the bobbin 1. The lead wire 4 is led out to the terminal portion 3 so as to crawl in a wire groove 6 provided in a wire drawing portion 5 on the upper surface of the bobbin 1. A portion 7 is formed, and a round bar-shaped column 8 is protruded from a central portion thereof. The depression 7 is about 0.5 mm deep
It is a round hole with a diameter of 0.4 to 0.5m
Since it is about m, it is extremely easy to cut and remove the support 8 by hand.

In order to allow the lead wire 4 to be hooked, the support column 8 is arranged so as not to be lined up with a line connecting the lead-out portion of the lead wire 4 and the connection terminal 3, and the leading end thereof is drawn out. Slightly (approximately 0.5
mm).

The configuration of the winding component is as described above, and the assembly is as follows. The coil is wound around the bobbin 1 by an automatic winding machine.
It is wound with a tension of 0 g / cm ² . The winding ends are led out as input and output lead wires 4 and bobbin 1
Is connected to the terminal portion 3 provided on the side end surface of the lead wire. At this time, the lead wire 4 is temporarily hooked on the support post 8 and entangled with the terminal portion 3 while being stretched in a V shape, and then soldered. It is fixed by the attachment. At this time, the lead wire 4 is in a state of being stretched without slack as shown in FIG. 3A. However, in the next step, the support 8 is cut off and removed to remove the lead 8 as shown in FIG. 3B. Line 4 can be relaxed.

As described above, the strut 8 is extremely easy to break, and a depression 7 is formed around the base of the strut 8 so that the base of the strut 8 is below the base surface 5a of the wire drawing portion 5. As a result, there is no fear that the lead wire 4 will be caught on the projection or the like at the breaking base.

When the lead wire 8 is loosened in this way, even if the lead wire 4 is pulled by the stress applied to the terminal portion 3, the slack portion absorbs this, so that the load on the wire is greatly reduced. Accidents such as thinning and disconnection can be prevented. The post 8 may be broken before or after the lead wire 4 is soldered. Also, it is preferable to break the lead wire 4 in such a direction that no load is applied to the hooked lead wire 4 (the direction of the arrow in FIG. 2).

In this embodiment, only one terminal portion 3 is shown and other terminals are omitted. However, a plurality of terminal portions 3 are actually provided. Each of the lead wires 4 is stretched in the shape of a letter by an individual support 8 and entangled with a predetermined terminal portion 3, and finally has a slackened state. Soldered.

[0018]

As described in the foregoing, according to the invention of the coil component of the present invention, the winding parts formed by winding a conductive wire to the bobbin to form a line lead portions of said bobbin
A foldable post that allows the coil lead wire to be hooked into the depressed portion is projected, so hook the lead wire to the post and connect it to the terminal, then break this post and remove it to loosen the lead wire Therefore, the lead wire is prevented from being thinned or disconnected due to the stress of the terminal portion, and the reliability of the winding component is improved.

Further, since the column is formed so as to protrude from a depression formed in the wire lead-out portion, even if there is a base that remains unbroken when the column is broken, the base is located below the base surface of the wire lead portion. And the lead wire can be reliably slackened.

Further, according to the invention of the method for winding a winding part of the present invention, when the support is removed, if the lead is broken in the direction opposite to the hook side of the lead, the load at the time of breaking is not applied to the lead. Disconnection is prevented , and the support column is broken.
Since the base is below the base of the wire drawer, the lead wire
No more hanging, and the lead wire can be securely loosened
You.

[Brief description of the drawings]

FIG. 1 is a partial perspective view showing one embodiment of a winding component according to the present invention.

FIG. 2 is a cross-sectional view of the line drawing section.

FIGS. 3A and 3B are plan views of the line drawing portion, wherein FIG. 3A shows a state in which a lead wire is hooked on a column, and FIG. 3B shows a state in which the column is broken and removed.

FIG. 4 is a partial perspective view showing a conventional winding component.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bobbin 2 Conductor 3 Terminal part 4 Lead wire 5 Wire lead-out part 7 Depression part 8 Prop

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Naoya Ohgami 5-36-11 Shimbashi, Minato-ku, Tokyo Inside Fuji Electric Chemical Co., Ltd. (56) References JP-A-4-88613 (JP, A) ( 58) Fields surveyed (Int.Cl. ⁶ , DB name) H01F 27/28 H01F 41/06

Claims (2)

(57) [Claims] 1. A winding part formed by winding a conducting wire (2) around a bobbin (1), wherein a depression formed in a wire lead-out portion (5) of the bobbin (1).
A winding part characterized in that a breakable support (8), which allows a lead wire (4 ) of a coil to be hooked, is protruded from a portion (7) . 2. A lead wire (2) for forming a winding part.
A bobbin (1) , wherein the bobbin (1) is wound around a wire drawing portion (5).
The coil (8) is attached to a breakable strut (8)
Hook the lead wire (4) in the shape of a hook.
After connecting the lead wire (4) to the terminal portion (3),
(8) in the direction opposite to the hook side of the lead wire (4)
Winding method for winding parts that are to be cut and removed.