JP2003007529A - Solenoid device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve electric reliability of a solenoid device, enusre easiness of assembling and disassembling, and ease repair work for conductive connection part. SOLUTION: This solenoid is comprised of a coil 101, a spool 110, a first yoke piece 120, and a second yoke piece 130. A substrate 150 to which a connector 160 is mounted is fitted to the solenoid body, and a cover 180 is attached thereto. The cover 180 is provided with an opening 182 to expose the connector 160, and an engaging hook 183 is engaged with a yoke to hold the substrate 150.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid device, and more particularly to the structure of a solenoid device having a connector attached.

[0002]

2. Description of the Related Art Generally, a solenoid device having a structure in which a yoke is attached to a spool around which a coil is wound and a plunger is retractably inserted into the spool is used in various situations as a small drive source. .

[0003] For example, as a solenoid device for driving a winning device of a pachinko machine, conventionally, after winding a coil around a spool, both ends of the coil are directly drawn out as wiring, or separately at both ends of the coil. I was supposed to attach the prepared wiring cord. However, in the solenoid device with the wiring thus drawn out,
Since it is necessary to adjust the length of the wiring to connect to each part or to connect different wiring, the installation work becomes complicated and it is not possible to cope with the progress of unitization in recent years. There is.

Therefore, a connector is attached to the solenoid device in advance, and the solenoid device is connected by using a wiring suitable for the connector, thereby facilitating the attachment work to each part and the assembly work of the unit. Are known.

[0005]

However, in the solenoid device provided with the above-mentioned connector, once assembled, the coil, the pin, and the conductive connecting portion between the connector are hidden inside, so that the electrical reliability is improved. It is often chipped, and it is difficult to disassemble and repair even if a conduction failure occurs. Further, there are many problems that the assembly work and the disassembly work itself are difficult and the structure is complicated, so that there is a problem that the repair cost at the time of manufacturing becomes high.

[0006] In recent years, the need for product recycling has been sought, but in the above solenoid device, a magnetic material, a non-magnetic material, a metal, a synthetic resin, and the like are intricately combined, and therefore, at the time of disposal. It has the drawback that it is difficult to disassemble each material and the recycling cost is high.

Therefore, the present invention solves the above-mentioned problems, and an object thereof is to provide a solenoid device capable of more reliably obtaining a conductive state during manufacturing and improving electrical reliability. Especially. Another object is to provide a solenoid device that can be easily assembled and disassembled. Another object of the present invention is to provide a solenoid device which can easily repair a conductive connection portion.

[0008]

In order to solve the above problems, a solenoid device of the present invention includes a spool made of an insulating material around which a coil is wound, a yoke attached to the spool, and a yoke attached to the yoke. A substrate having wirings electrically connected to both ends of the coil, and a connector mounted on the substrate and having terminals electrically connected to the wirings. By adopting a structure in which the board on which the connector is mounted is attached to the yoke, the structure of the connector can be simplified (having only the original function of the connector), and the solenoid body and
Since the board and the connector can be easily assembled and disassembled, the electrical reliability can be improved and the electrical connection portion can be easily repaired.

In the present invention, it is preferable that a separate cover is attached on the substrate. By installing a separate cover on the board, it covers the solenoid main body, the conductive connection between the board and the connector, and it is possible to improve the electrical reliability and ease of assembly and disassembly. Can be secured.

In the present invention, it is preferable that the cover has an opening for exposing the connector. By forming the opening in the cover and exposing the connector through the opening, it is possible to more completely cover the entire substrate or a required portion of the substrate (portion where the conductor is exposed). At the same time, the ease of assembly and disassembly can be ensured.

In the present invention, it is preferable that the cover holds the substrate by engaging the yoke with the substrate interposed therebetween. The cover sandwiches the board and engages the yoke,
With this configuration, the substrate is held between the cover and the yoke, so that the assembly can be completed only by attaching the cover to the yoke, and conversely, the substrate can be removed by simply removing the cover. Assembly and disassembly can be further facilitated.

In some cases, a surge absorbing element is mounted on the substrate and the surge absorbing element is covered with the cover.

In the present invention, it is preferable that a pair of pins whose both ends of the coil are conductively connected are attached to the collar portion of the spool, and the pins are conductively connected to the wiring. By conducting the conductive connection between both ends of the coil and the wiring on the substrate through the pins, the assembly and the conductive connection work are facilitated. In this case, it is particularly desirable to provide an opening such as a groove or a hole in the wiring formation region of the substrate and to electrically connect the pin and the wiring in a state where the pin is introduced into the opening.

In the present invention, a cutout portion is provided in a part of the yoke that overlaps with the flange portion of the spool, and a thick portion that fits in the cutout portion is provided in the collar portion of the spool. It is preferable that the pin is implanted in the thick portion. Since the pin is planted in the thick portion provided on the collar portion of the spool and the thick portion is configured to fit into the cutout portion of the yoke, the conductive connection portion between the pin and the substrate is formed by the yoke. Since it is possible to prevent a defect such as contact with the substrate, electrical reliability can be improved.

Further, in another solenoid device of the present invention, a spool made of an insulator around which a coil is wound, a yoke attached to the spool, and both ends of the coil are conductively connected to a collar portion of the spool. A pair of pins and a connector electrically conductively connected to the pins, a notch is provided in a portion of the yoke that overlaps the collar of the spool, and the notch is provided in the collar of the spool. Is provided, and the pin is planted in the thick portion.

According to the present invention, the pin is planted in the thick portion provided on the collar portion of the spool, and the thick portion is configured to fit in the notch portion of the yoke. Since it is possible to prevent defects such as contact between the conductive connection portion between the pin and the substrate with the yoke, it is possible to improve electrical reliability.

In each of the above inventions, it is preferable that the invention is provided with a plunger that is inserted into and retracted from the spool.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a solenoid device according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic perspective view showing the outer appearance of the solenoid device 100 of the present embodiment, and FIG. 2 is an exploded perspective view of the solenoid device 100.

First, referring to FIG. 2, the solenoid device 1
Each component of 00 will be described. The spool 110 around which the coil 101 is wound is provided with a pair of flange portions 112 and 113 projecting like flanges on both ends of a cylindrical portion 111.
It is integrally molded with an insulator such as synthetic resin.

An annular edge 112a is formed at the center of the outer surface of one of the collars 112. In addition, a pair of thick-walled portions 112b are provided on a portion (upper edge portion in the drawing) along one side of the outer surface of the collar portion 112, and pins 115 made of a conductive material are respectively implanted in these thick-walled portions 112a. Has been done. The pin 115 is integrally attached to the spool 110 by insert molding or press fitting. Pin 115
Is provided so as to project from the upper end of the thick portion 112a in the figure to the upper side in the figure, that is, on the outer peripheral side of the collar portion 112. A pair of pins 1
Both ends of the coil 101 are electrically connected to the coil 15 by a method such as winding and soldering.

The first yoke piece 120 made of a magnetic material and having a U-shaped plate shape in plan view has a second yoke formed on a pair of left and right end surfaces.
An engaging projection 121 that engages with the yoke piece 130, a pair of left and right recesses 122 formed on the upper edge of the drawing, and the recess 122.
Two left and right through holes 123 are formed so as to penetrate slightly below.

The flat plate-shaped second yoke piece 130 made of a magnetic material has an engaging recess 131 for engaging the engaging projection 121, a through hole 132 formed in the center, and a second yoke piece. A pair of cutouts 133 are provided on one side (upper edge in the figure) of 130 so as to open.

The first yoke piece 120 and the second yoke piece 1
30 is a state in which the spool 110 in which the auxiliary iron core 141 is inserted in the cylindrical portion 111 is housed inside, and the engaging convex portion 121 and the engaging concave portion 131 are engaged with each other,
By joining the engaging portions by caulking or the like, a yoke having a square V shape in plan view is formed. At this time, the edge portion 112a provided on the collar portion 112 of the spool 110 is
Is fitted into the through hole 132 of the second yoke piece 130, and the thick portion 112b provided on the collar portion 112 is the second portion.
The yoke piece 130 is fitted into the cutout portion 133.

On the other hand, the circuit board 150 is engaged with the illustrated upper edge portion of the first yoke piece 120. The circuit board 150 has a pair of wiring patterns 151 formed on an insulating substrate.
A groove (or a hole) 152 formed so as to penetrate through the formation regions of the pair of wiring patterns 151, a pair of recesses 153 respectively provided on the left and right sides, and the left and right sides. A pair of convex portions 15 provided on the
And 4 are provided. The pair of protrusions 154 are the first
It engages with the recess 122 of the yoke piece 120.

A connector 160 is provided on the circuit board 150.
Are mounted, and the terminals 161 of the connector 160 are conductively connected to the pair of wiring patterns 151 by soldering or the like. Further, a surge absorbing element 170 (preferably a surface mounting type such as a capacitor or a diode) is conductively connected between the pair of wiring patterns 151.

The pins 115 implanted in the thick portion 112b of the spool 110 are inserted into the grooves 152 of the circuit board 150, and these pins 115 are conductively connected to the wiring pattern 151 by soldering or the like. . When the circuit board 150 is attached, one end of the circuit board 150 is placed on the collar portion 112 and the thick portion 115 of the spool 110, and the other end of the convex portion 154 is the first yoke piece 120.
It is in a state of being engaged and supported in the recess 122.

The circuit board 150 is covered with an insulating cover 180 made of synthetic resin or the like from above in the drawing. The cover 180 has a housing portion 181 that is swelled so as to secure a certain space inside, and an opening 182 that is adjacent to the housing portion 181 and has a size that allows the connector 160 to pass therethrough. And a plurality of (four in the illustrated example) engagement hooks 183 protruding downward in the drawing.

The cover 180 has a part of the engaging hooks 183.
(Two in the illustrated example) are recessed portions 153 of the circuit board 150.
Through the inside of the first yoke piece 120, the tip of which is engaged with the through hole 123, and the remaining engaging hook 1
83 (two remaining in the illustrated example) is passed through the side of the circuit board 150 and is similarly inserted into the inside of the first yoke piece 120, and the tip thereof is engaged with the through hole 123. The first yoke piece 120 is held and fixed in a state of being sandwiched.

At this time, the opening 182 of the cover 180 allows the connector 160 to be inserted and exposed to the outside. The accommodating portion 181 accommodates the conductive connection portion between the pin 115 and the wiring pattern 151 on the circuit board 150 and the surge absorbing element 170 therein, and completely covers them.

The plunger 143 fitted with the coil spring 142 is, as shown in FIG. 1, a second yoke piece 130.
And is inserted into the cylindrical portion 111 of the spool 110.

In this embodiment described above, the circuit board 150 is attached to the solenoid body composed of the coil 101, the spool 110, and the yokes 120 and 130, and the connector 160 is mounted on the circuit board 150. Since the structure of the connector 160 can be simplified, and the wiring pattern 151 on the circuit board 150 and both ends of the coil 101 are conductively connected via the pins attached to the spool 110, Both the assembling work and the disassembling work can be easily performed. In particular, since the electrically connected portion is present on the circuit board 150, it is possible to easily carry out a work for correcting a connection failure or the like.

Further, in this embodiment, the circuit board 15 is used.
By covering 0 with the cover 180, the conductive connection portion such as the soldered portion is not exposed, so that the electrical reliability can be improved. In particular,
By providing an opening 182 in the cover 180 to expose only the connector 160, the circuit board 150
It can be configured to barely expose itself.

Furthermore, the circuit board 1 is covered by the cover 180.
Since 50 is fixed to the yokes 120 and 130, the circuit board 150 and the cover 18 can be fixed only once.
0 and can be attached.

In this embodiment, the collar portion 1 of the spool 110 is
12 is provided with a thick-walled portion 112b, the pin 115 is attached so as to project from the thick-walled portion 112b, and the thick-walled portion 112b is configured to fit into the cutout portion 133 of the second yoke piece 130. By doing so, it is possible to prevent the occurrence of defects such as the pin 115 coming into contact with the yoke, so that the electrical reliability can be further improved.

[0035]

As described above, according to the present invention,
It is possible to obtain a more reliable conduction state during manufacturing,
The electrical reliability can be improved. In addition,
It becomes possible to easily disassemble. Furthermore, the repair work of the conductive connection portion can be easily performed.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a solenoid device according to the present invention.

FIG. 2 is an exploded perspective view of the solenoid device of the same embodiment.

[Explanation of symbols]

100 solenoid device 101 coil 110 spool 112,113 Tsuba 112a edge 112b Thick part 115 pin 120 First yoke piece 121 Engagement convex part 122 recess 123 through hole 130 Second yoke piece 131 through hole 132 engagement recess 133 Notch 141 Auxiliary iron core 142 coil spring 143 Plunger 150 circuit board 151 wiring pattern 152 groove 153 recess 154 convex 160 connector 161 terminal 170 Surge absorption element 180 cover 181 accommodation 182 opening

Claims (7)

[Claims] 1. A spool provided with an insulator around which a coil is wound, a yoke attached to the spool, a substrate provided with wiring attached to the yoke and electrically connected to both ends of the coil, And a connector provided with a terminal mounted on a substrate and electrically conductively connected to the wiring. 2. The solenoid device according to claim 1, wherein a separate cover is attached on the substrate. 3. The solenoid device according to claim 2, wherein the cover has an opening that exposes the connector. 4. The solenoid device according to claim 2, wherein the cover holds the substrate by engaging the yoke with the substrate sandwiched therebetween. 5. A pair of pins in which both ends of the coil are conductively connected are attached to the collar portion of the spool, and the pins are conductively connected to the wiring. Solenoid device described in. 6. A notch is provided in a portion of the yoke that overlaps the collar of the spool, and a thick portion that fits in the notch is provided in the collar of the spool. The solenoid device according to claim 5, wherein is embedded in the thick portion. 7. A spool made of an insulator around which a coil is wound, a yoke attached to the spool, a pair of pins whose both ends of the coil are conductively connected to a collar portion of the spool, and a conductive member connected to the pin. A cutout portion is provided in a part of the yoke that overlaps the collar portion of the spool, and a thick portion that fits into the cutout portion is provided in the collar portion of the spool. The solenoid device, wherein the pin is embedded in the thick portion.