JPH0729555Y2 - Reed relay - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a reed relay, and more particularly to a reed relay that simplifies connection of a wire wound around a coil bobbin.

[Conventional technology]

Conventionally, such a reed relay is constructed as shown in FIG. 3, for example.

In FIG. 3 (A), a reed relay 1 has a wire 3 with an insulating coating wound around an outer peripheral surface of a coil bobbin 2 formed in a hollow cylindrical shape, and a reed switch is provided in the hollow portion of the coil bobbin 2. 4 (illustrated by the dotted line) is inserted and placed at a predetermined position with respect to the frame 5. Then, the lead wire of the reed switch 4
4a is fixed and electrically connected to the reed switch terminal 5a of the frame 5 by spot welding, for example, and the ends 3a of the wire 3 extending from both ends of the coil bobbin 2 are connected to the terminal 5a of the frame 5 for the coil bobbin. Wrap it around 5b, temporarily fix it with adhesive, etc., and connect it electrically by soldering.

After the coil bobbin 2 and the reed switch 4 are attached to the frame 5 in this manner, the coil bobbin 2 and the reed switch 4 are sealed with the resin mold 6 by transfer molding using epoxy resin or the like,
By cutting the terminals 5a and 5b, the reed relay 1
Is completed (see FIG. 3 (B)).

In the reed relay 1 configured as above, the wire 3 itself is relatively thin, so
It was troublesome and time-consuming to wind the wire around the outer peripheral surface of, and then wind around the terminal portion 5b of the frame 5 and solder it. Moreover, since this work requires skill, the cost is high.

Further, since the coil bobbin 2 and the terminal portion 5b to which the end portion 3a of the wire 3 wound around the outer peripheral surface of the coil bobbin 2 are soldered are separate bodies, even if they are temporarily fixed by an adhesive or the like, The end 3a of the wire 3 is a terminal
There was a case where the wire 3 itself was broken because it was disengaged from the 5b and the coil bobbin 2 was in a moving state.

Further, the winding of the wire 3 around the coil bobbin 2 can be automated by rotating the coil bobbin 2. However, it is practically difficult to rotate the coil bobbin 2 and wind the wire 3 around the coil bobbin 2 after winding the end portion 3a of the wire 3 around the one terminal portion 5b, and the coil bobbin 2 and the terminal portion 5b. It was virtually impossible to fully automate the winding of the wire 3 around.

Therefore, in the case of automation, as shown in FIG. 4, flange portions 2a are provided at both ends of the coil bobbin 2 at the time of molding the coil bobbin 2, and the flange portion 2a is provided with a terminal portion.
The coil bobbin 2 is provided with terminal portions 2b (see FIG. 4 (B)) projecting outward from the outer peripheral surface of the coil bobbin 2 at both ends of the coil bobbin 2 by insert molding or the like.

First, the tip portion 3a of the wire 3 is wound around the terminal portion 2b and temporarily fixed with an adhesive or the like. Then, the wire 3 is wound around the outer peripheral surface of the coil bobbin 2, and the winding end portion 3a 'of the wire is wound around the other terminal portion 2b and temporarily fixed by an adhesive or the like.
Then, by immersing the terminal portion 2b in a solder bath such as an automatic soldering device, the winding of the wire 3 around the coil bobbin 2 and the winding of the terminal portion 2b and the soldering of the wire 3 at the terminal portion 2b are automatically performed. Can be done on a regular basis.

The coil bobbin 2 in which the wire 3 is wound in this way
In the same manner as in FIG. 3, the lead wire 4a of the reed switch 4 and the connecting portion 2c projecting laterally from the coil bobbin of the terminal portion 2b are connected to the respective terminal portions 5a, 5 of the frame 5.
The reed relay is completed by fixedly connecting to b by spot welding or the like, sealing it with a resin mold, and then cutting the terminal portions 5a and 5b.

[Problems to be solved by the device]

However, in the reed relay 1 configured in this way, since the flange portions 2a are provided at both ends of the coil bobbin 2 and the terminal portions 2b are further provided, the cost of the coil bobbin 2 itself becomes relatively large and relatively large. Therefore, it is difficult to reduce the size of the reed relay 1.

In addition, since the wire 3 is wound around the coil bobbin 2, the winding direction is changed, the wire 3 is wound around the terminal portion 2b, and soldering is performed in the solder bath, the apparatus required for automation becomes large. However, there were problems such as high cost.

In view of the above points, the present invention has an object to provide a reed relay that is easy to assemble, does not require skill, and can be automated by an automated device having a simple and small configuration.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, in the present invention, a main body part formed of a heat-resistant insulating material in a hollow cylindrical shape and an outer and an inner flange part which are doubled at both ends of the main body part are provided. A coil bobbin consisting of a wire is wound around the outer peripheral surface of the main body in the central region between the inner flanges, and both ends of the wire are respectively near the both ends of the main body and the inner flange and the outside. Is wrapped around the outer peripheral surface of the main body portion in the end region between the flange portions of
Preferably, the reed switch is inserted in the hollow portion of the main body together with the adhesive fixing at that position,
The reed relay is configured to be electrically connected to the outside by contacting the connection lead piece with the wire wound around the outer peripheral surface of the main body in the end region and soldering the wire. .

[Action]

According to this invention, the coil bobbin itself can be configured to be relatively small, and when the wire is wound around the coil bobbin, first, the wire is wound around one end region of the main body, and then the wire is wound around the central region of the main body. The wire winding operation is completed simply by winding the wire and then winding the wire around the other end region of the main body and temporarily fixing the wire in the end region with an adhesive or the like.

Therefore, the wire is wound around the central region of the main body of the coil bobbin that constitutes the magnet coil, and the wire is connected to the end region of the main body that constitutes the terminals that electrically connect both ends of this wire to the outside. Since the wires are wound in the same direction, the wire winding work can be performed easily and in a short time without requiring skill.

Further, since the end region for temporarily fixing the end of the wire is a part of the coil bobbin, there is no possibility that the wire will be disengaged from the end region or broken during the work.
Further, when automating the winding of the wire and the connection to the frame, since the winding direction of the wire is one, the conventional winding device for the coil bobbin can be used as it is.

Further, the fixed connection to the frame can be performed only by bringing the terminal portion of the frame into contact with the end region of the coil bobbin and the lead wire of the reed switch and connecting them by spot welding or the like. And the manufacturing cost becomes low.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings.

FIG. 1 shows an embodiment of a reed relay according to the present invention.

The reed relay 10 is a main body formed in a hollow cylindrical shape from a heat resistant insulating material such as a heat resistant resin or a ceramic material.
The coil bobbin 14 includes an outer flange portion 12 and an inner flange portion 13 which are doubled at both ends of the body portion 11.

In the coil bobbin 14, a wire 15 is closely wound a predetermined number of times on the outer peripheral surface of the main body 11 in the central region 11a between the inner flange portions 13, and both ends 15 of the wire 15 are wound.
a is the end region 11b, 11c between the inner flange portion 13 and the outer flange portion 12 near both ends of the main body portion 11, respectively.
After being wound around the outer peripheral surface of the main body 11 for a considerable number of times, it is temporarily fixed by an adhesive or the like.

With the reed switch 16 inserted in the hollow portion of the main body 11 of the coil bobbin 14 on which the wire 15 is wound in this manner, the lead wire 16a of the reed switch 16 is placed at a predetermined position with respect to the frame 17. The reed switch terminal portion 17a of the frame 17 is fixed and electrically connected by, for example, spot welding.

Further, the end regions 11b, 11c of the main body 11 of the coil bobbin 14 are
Then, the terminal portion 17b for the coil bobbin of the frame 17 is brought into contact, fixed by soldering and electrically connected. At this time, since the coil bobbin 14 is made of a heat resistant insulating material, the soldering does not cause a part of the coil bobbin 14 to melt or deform.

In this way, with the coil bobbin 14 and the reed switch 16 attached to the frame 17, in the same manner as in the conventional case,
After sealing with a resin mold, the reed relay 10 is completed by cutting the terminal portions 17a and 17b.

The reed relay 10 according to the present invention is configured as described above, and when the wire 15 is wound around the coil bobbin 14, both end portions 15a of the wire 15 also have a main body portion 11 of the coil bobbin 14 that should form a magnet coil. In the same direction as the winding around the central region 11a of the end region 11b, 11c
The wire 15 may be wound a number of times and temporarily fixed with an adhesive or the like. Therefore, since the wire 15 can be wound around the end regions 11b and 11c forming the terminal part by the conventional automatic wire winding device around the coil bobbin, automation can be easily performed.

[Effect of device]

As described above, according to the present invention, the coil bobbin including the outer and inner flange portions that are double formed at both ends of the main body portion is provided, and the coil bobbin is provided in the central region between the inner flange portions. A wire is wound around the outer peripheral surface of the main body,
And both ends of this wire are respectively wound around the outer peripheral surface of the main body portion in the end region between the inner flange portion and the outer flange portion near both ends of the main body portion, and preferably fixed by an adhesive or the like, Further, a reed switch is inserted in the hollow portion of the main body, and the connecting lead piece is brought into contact with the wire wound around the outer peripheral surface of the main body in the above-mentioned end region to solder the wire. The reed relay was configured to be electrically connected to.

Therefore, the coil bobbin itself can be configured to be relatively small, and when winding the wire around the coil bobbin,
First, after winding the wire around the one end area of the main body,
A wire is wound around the central area of the main body, and then the wire is wound around the other end area of the main body, and the wire is wound around the end area by an adhesive or the like. You will be able to complete it.

Thus, the wire is wound around the central region of the main body of the coil bobbin that constitutes the magnet coil, and the end portions of the main body that constitute the terminal portions that electrically connect both ends of the wire to the outside are formed. Since the winding of the wire is in the same direction, the work of winding the wire can be performed easily and in a short time without requiring skill.

Further, since the end portion area for temporarily fixing the end portion of the wire is a part of the coil bobbin, it does not come off from the end portion area of the wire or break during the work.

Furthermore, when automating the winding of the wire and the connection to the frame, since there is only one winding direction of this wire, the conventional winding device for the coil bobbin can be used as it is, and the terminal part of the frame can be used for the end part of the coil bobbin. Since the fixed connection to the frame can be performed only by contacting the area and the lead wire of the reed switch and connecting them by spot welding or the like, the component cost and manufacturing cost of the present reed relay can be reduced.

Thus, according to the present invention, it is possible to provide an extremely excellent reed relay which is easy to assemble, does not require skill, and can be automated by an automated device having a simple and small structure.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the reed relay according to the present invention, and FIG. 2 is a side view of a coil bobbin used in the reed relay of FIG. FIG. 3 shows an example of a conventional reed relay, (A) is a schematic perspective view during manufacturing, (B) is a schematic perspective view after completion, and FIG. 4 is another example of a conventional reed relay. so,
(A) is a schematic perspective view during manufacturing, and (B) is a front surface of the coil bobbin. 10 …… Reed relay; 11 …… Main body; 11a …… Central area; 11
b, 11c …… End area; 12,13 …… Flange part; 14 …… Coil bobbin; 15 …… Wire; 15a …… End; 16 …… Reed switch; 16a …… Lead wire; 17 …… Frame; 17a, 17b …… Terminal part.

Claims (2)

[Scope of utility model registration request] 1. A coil bobbin including a main body formed of a heat-resistant insulating material in a hollow cylindrical shape, and an outer and inner flange portions double formed at both ends of the main body, respectively. A wire is wound around the outer peripheral surface of the main body portion in the central region between the inner flange portions, and both ends of the wire are respectively near the both ends of the main body portion and end portions between the inner flange portion and the outer flange portion. In the end region, the reed switch is inserted into the hollow portion of the main body while being wound around the outer peripheral face of the main body, and connected to the wire wound around the outer peripheral face of the main body in the end region. A reed relay characterized in that the reed relay is electrically connected to the outside by abutting and soldering the reed pieces. 2. The reed relay according to claim 1, wherein the wire wound in the end region between the inner and outer flange portions is bonded and fixed.