JPH1074426A - Electromotive switch device and electronic equipment provided with it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the exhaustion of a battery built in an electronic equipment, or dispense with the replacement of the battery by forming an electromotive switch of a fixed part having a flat coil and a contact and a movable part having a contact and a magnet, and supporting the movable part in such a manner as to be connectable to and disconnectable from the fixed part. SOLUTION: When an elastically deformable key top 5 is pressed down by the finger top, a movable contact 3 makes contact with two fixed contacts arranged on a circuit board 6, and a circuit is formed between the two fixed contacts 4, 4 through the movable circuit 3. Namely, switch-on state is formed to send a signal. When the finger is released, the key top 5 is elastically returned, and the fixed contacts 4, 4 are opened and laid in general state. Flat coils 1A, 1B is formed of a metal plate having a thickness dimension of about 0.1mm-0.5mm which is formed into a coil. These coils are stuck to and layered on both surfaces of a thermoplastic resin sheet or prepreg resin sheet, and further pressed by a flat plate while heating, whereby they are integrated together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromotive switch device using a coil and a magnet, and to an electronic apparatus provided with the switch device.

[0002]

2. Description of the Related Art Conventionally, in a portable information terminal device such as a radio, a personal computer (PC / personal computer), and a word processor (WP / word processor), the consumption of a built-in drive power supply battery is reduced, or the battery does not need to be replaced. For this purpose, for example, a power generation device disclosed in Japanese Patent Application Laid-Open No. Hei 4-30865 has been proposed. The power generating device in this case includes a rocking lever, speed increasing means by a gear train, a rotor magnet mounted at the forefront of the gear train, and a power generating coil surrounding the rotor magnet.

[0003] Japanese Patent Application Laid-Open No. Hei 7-168553 proposes a configuration of a trackball and a dynamo-type generator that rotates in contact with the trackball.

Further, as a power source of a remote controller (remote controller) for remotely controlling an electronic device such as a television receiver, a VTR, and a lighting device, a dry battery (battery) and auxiliary means for reducing the consumption of the dry battery and making it last longer are used. A configuration using a solar cell together has been proposed.

Further, a configuration in which a magnet attached to a key switch is moved in the coil by operating a push button (key top) of the key switch to generate a voltage in the coil is disclosed in, for example, Japanese Patent Laid-Open No. Hei 5-276680. Has been proposed. FIG. 16 shows a configuration diagram and a circuit diagram of the concept of the key switch.

As a keyboard device provided with a plurality of key switches, for example, Japanese Utility Model Laid-Open Publication No. Hei 6-23134 has been proposed. In this case, the arrangement of the magnet and the coil is reversed, but the point of generating power using the movement of the key top is the same. 17 and 18 show a conceptual diagram of the keyboard device and a conceptual diagram of the key switch.

[0007]

However, the construction of the power generator using the swing lever and the gear train is not simple. Also,
In the case of a configuration using a trackball, it is necessary to contact and move the electronic device on a flat surface or the like. Also, Japanese Patent Application Laid-Open No. 5-27
JP-A-6680 and JP-A-6-23134 also have a complicated structure and increase the cost. In the remote control, no configuration has been proposed that eliminates the need for dry batteries or reduces the consumption of dry batteries by using a switch device that uses the movement of a keytop.

According to the present invention, there is provided a switch device capable of generating power in the course of key input with a simple configuration, and electronic equipment including the switch device, for example, a PC (personal computer / personal computer) and a PHS (personal handy). Phone system / simplified mobile phone), remote controller, etc.

[0009]

In order to solve the above-mentioned problems, the present invention uses a magnet (magnet) and a power generating coil, and (1) a fixing portion including a planar coil and a contact; An electromotive switch device comprising a movable portion having a contact and a magnet, wherein the movable portion is supported so as to be able to approach and separate from the fixed portion. (2) A fixed portion including a planar coil and a contact, and a movable portion including a contact and a magnet formed by mixing magnetic powder, the movable portion being in contact with the fixed portion. An electromotive switch device characterized by being detachably supported. (3) Further, a fixed portion having a planar coil and a contact, a movable portion having a built-in magnet, and a diaphragm located between the fixed portion and the movable portion and having a contact function. And wherein the movable portion is supported so as to be able to approach and separate from the fixed portion. (4) An electromotive system comprising a fixed portion including a planar coil and a switch, and a movable portion including a magnet, wherein the movable portion is supported so as to be able to approach and separate from the fixed portion. A switch device was used. (5) A fixed portion having a planar coil and a contact, a movable portion having a key top, and a diaphragm located between the fixed portion and the movable portion and having a magnet and a contact. In this case, the movable portion is supported so as to be able to approach and separate from the fixed portion. (6) a fixed portion including a planar coil and a switch, a movable portion including a keytop, and a diaphragm that is located between the fixed portion and the movable portion and includes a magnet; The movable portion is supported so as to be able to approach and separate from the fixed portion.

With the above configuration, the switch device of the present invention can generate power without knowing in the key input process of characters and data. As a result, the life of the battery built in the electronic device can be extended, or the battery can be made unnecessary, thereby conserving the global environment.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to a second aspect of the present invention comprises a substrate having a planar coil and contacts separated from each other, and a movable portion having a contact on the surface and a magnet built therein. The electromotive switch device is characterized in that the movable portion is supported so as to be able to contact and separate from the substrate, and power can be generated in the key input process. As a result, the life of the battery built in the electronic device can be extended, or the battery can be eliminated, thereby conserving the global environment. Next, the invention according to claim 5 provides a substrate having a planar coil and separated contacts. An electromotive switch device comprising: a movable portion having a contact provided on a surface thereof and a magnet formed by mixing magnetic powder; and wherein the movable portion is supported on the substrate so as to be capable of coming and going. It can also generate electricity in the key input process. Also, there is no need to incorporate a solid magnet.

Next, the invention according to claim 7 comprises a laminated inductor having a contact on the surface and a movable portion having a contact on the surface and a magnet built therein, wherein the movable portion is provided with respect to the laminated inductor. The electromotive switch device is characterized in that the power switch is supported so as to be able to contact and separate, and power can be generated in the key input process.

Next, the invention according to claim 8 comprises a laminated inductor having a contact on its surface, and a movable portion having a contact on its surface and a magnet formed by mixing magnetic powder. An electromotive switch device characterized in that the movable portion is supported so as to be able to contact and separate from the inductor, and power can be generated together with a key input process. Also,
There is no need to incorporate a solid magnet.

According to a ninth aspect of the present invention, there is provided an electronic apparatus including the electromotive switch device according to the first aspect, and power can be generated together with a key input process.
As a result, the life of the battery built in the electronic device is extended.

According to an eleventh aspect of the present invention, there is provided a fixed portion having a planar coil and a contact, a movable portion having a built-in magnet, and a contact portion located between the fixed portion and the movable portion. The electromotive switch device is characterized in that the movable portion is supported so as to be able to contact and separate from the fixed portion, and power can be generated in the key input process.

According to a thirteenth aspect of the present invention, there is provided a fixed part having a planar coil and a contact, a movable part formed by mixing magnetic powder to form a magnet, and a movable part between the fixed part and the movable part. And a diaphragm provided with a contact, wherein the movable part is supported so as to be able to contact and separate from the fixed part. To generate electricity.

According to a sixteenth aspect of the present invention, there is provided a substrate including a planar coil and a switch, and a movable portion having a magnet built therein, and the movable portion is supported on the substrate so as to be able to contact and separate therefrom. The electromotive switch device is characterized in that power can be generated together with the key input process.

The invention according to claim 18 comprises a substrate having a planar coil and a switch, and a movable portion having a magnet formed by mixing magnetic powder. The movable portion is in contact with the substrate. It is an electromotive switch device characterized by being detachably supported, and can also generate power in the key input process.

According to a nineteenth aspect of the present invention, there is provided a fixed portion having a planar coil and a contact, a movable portion having a key top, a position between the fixed portion and the movable portion, An electromotive switch device comprising a magnet and a diaphragm provided with a contact, wherein the movable portion is supported so as to be capable of coming and going with respect to the fixed portion. Power can be generated together with a key input process. .

According to a twenty-first aspect of the present invention, a fixed portion having a planar coil and a switch, a movable portion having a key top, and a movable portion having a key top are provided between the fixed portion and the movable portion. An electromotive switch device comprising a diaphragm provided with a magnet, wherein the movable portion is supported so as to be able to approach and separate from the fixed portion, and power can be generated together with a key input process.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the electromotive switch device according to the present invention will be described below with reference to FIGS.

(Embodiment 1) FIG. 1 is a sectional view showing the concept of an electromotive type (having a power generation function) switch device according to a first embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are FIGS. FIG. 2 is a plan view and a rear view of a power generation coil included in the electromotive switch device of FIG.

The electromotive switch device 100 according to the first embodiment includes a circuit board (fixed portion) having contacts in the vicinity of a planar coil, a key top having contacts on the surface and a magnet inside. A movable part), wherein the key top is supported on the substrate so as to be able to contact and separate from the substrate. It generates electricity by contacting and separating to generate electric current.

In FIGS. 1 and 2, reference numeral 6 denotes a circuit board (fixed portion) provided with a predetermined wiring pattern on at least one surface.
And a member constituting a so-called printed wiring board, such as paper phenol, epoxy resin, PS, and PP. 1A, 1
B is a planar coil made of a conductor such as a copper member. 5
Is a key top (movable part) constituting a switch device, which is formed by injection-molding an elastic member such as rubber or a plastic member, and comes into contact with and separates from the fixed contacts 4 and 4 provided on the circuit board 6 (contact, contact, It moves (elastically deforms) in the direction in which it separates.
3 is a movable contact (conductor) disposed on the bottom of the key top 5
Then, a metal member such as silver, copper, gold, nickel, or aluminum is printed or applied, and then dried and cured. Of course, it may be integrally formed with the key top 5. Reference numeral 4 denotes fixed contacts, which are arranged at two places apart in the example of FIG. 1 and are connected to a desired wiring circuit. The fixed contacts 4, 4 are silver, copper, gold,
A metal member (conductor) such as nickel or aluminum is printed or coated on the flat coil via the insulating layer 7. The insulating layer 7 is formed by printing or spraying an acrylic resin or an epoxy resin to a thickness of 1 to 10 μm. Reference numeral 2 denotes a rod-like magnet (magnet) such as a cylinder or a prism, which is built in the key top 5 by integral molding or the like. The key top 5 is formed by supporting the bottom surface in a C shape at both ends or annularly supporting the entire periphery.

When the elastically deformable key top 5 is pressed down with a fingertip, the movable contact 3 comes into contact with the two fixed contacts 4 and 4 arranged on the circuit board 6, and the two fixed contacts are fixed via the movable contact 3. A circuit is formed between the contacts 4,4. That is, the switch is turned on and the signal flows. When the finger is released, the key top 5 is elastically restored, and the fixed contacts 4 and 4 are opened to be in a normal state.

Next, an embodiment of the flat coils (planar coils) 1A and 1B constituting the power generating apparatus 100 of the present invention will be described with reference to FIG. The planar coil 1 shown in FIG.
A and 1B are formed by coiling a metal plate such as a copper plate having a thickness of about 0.1 mm to 0.5 mm by means of etching, laser processing, or press processing. The coil is bonded and laminated on both surfaces of a thermoplastic resin sheet or a prepreg resin sheet, and is further pressed by a flat plate while heating so that the surface of the coil and the surface of the resin sheet are substantially flush with each other. , Integrated. The planar coil may be a print coil, a print coil, a fusion coil, or the like in addition to the above.

The printed coil is formed, for example, by photoetching a double-sided or single-sided copper-clad flexible wiring board to form a spiral planar coil, and by laminating one or more layers via an insulating layer. The spiral planar coils are electrically connected in series by means of copper plating or the like through through holes so that current flows in the spiral planar coils in the same direction. Naturally, both surfaces of the planar coil are covered with an insulating layer, for example, an epoxy resin, a fluorine resin, an acrylic resin, or the like.

The printing coil is formed, for example, by screen-printing a conductor paste on both sides of a ceramic substrate and firing the same to form a spiral planar coil, and electrically connect the spiral coil with each spiral via a through hole provided in advance. It is connected so that current in the same direction flows to the planar coil and is covered with an insulating layer.

The fusion coil is formed by winding a fusible insulated conductor,
It is stuck. The fusible insulated wire is a double-structured covered wire in which a fusible film such as a thermoplastic resin or a thermosetting resin is baked on a covered wire such as polyurethane or polyester. The conductors can be bonded to each other by means such as solvent, electric heating, or hot air heating, and the fusion coil can be integrally formed into a flat plate, a curved surface such as a spherical surface or a cylindrical surface, and a desired rigidity can be obtained. Can be Examples of the conductor used for the insulative insulated conductor include a round conductor having a circular cross section, a rectangular ribbon conductor, and a multi-parallel conductor obtained by processing a plurality of circular conductors in parallel. When a ribbon conductor, multiple parallel conductors, or the like is used, the space between conductors can be reduced and densely arranged, and the size, thickness, and resistance can be reduced as compared with round conductors. That is, by reducing the size of the plate-like ferromagnetic material or the interval between them, the coil (inductor) can be reduced in size and thickness. The fusion coil is mounted on a rectangular chip-type printed wiring board or the like.

FIG. 3 shows a planar fusion coil unit.
The cross section is 0.06 x 0.65 mm as a fusible insulated conductor.
Winding was performed using the # 2 ribbon conductor, and the conductors were bonded and formed by heating with hot air. External dimensions are about 15m in diameter
m, the thickness of the planar fusion coil 7 was 4 mm or less. Needless to say, the outer periphery of the planar fusion coil 7 may have an arbitrary shape such as a square, a polygon, or a sector, in addition to a circle.
Further, the planar fusion coil does not necessarily have to be a single coil body.

The plate-like plate 8 arranged on both sides of the fusion coil is made of an oxide soft magnetic material (ferrite) such as Mn-Zn or Ni-Zn, an amorphous alloy such as Co or Fe, or an amorphous alloy. A soft magnetic material having an ultrafine structure obtained by crystallizing an alloy, a metal soft magnetic material such as silicon steel, permalloy dust, or the like may be arbitrarily used. It goes without saying that a plastic member may be used. The plastic member may be any member such as polyester resin, nylon, fluorine, epoxy, polystyrene, and polypropylene. The thickness of the plate 8 is 10 μm to 500 μ
m is preferred. The constituent members of the frame 6 are also arbitrarily made of a ferromagnetic material, plastic, or the like, and have a thickness equal to or greater than the thickness of the planar fused coil. The planar fusion coil unit is mounted and fixed in a predetermined manner on a printed wiring board (not shown) having electrodes disposed at both ends, and a wiring pattern provided on the printed wiring board and an end of the coil. Connected.

FIG. 4 shows a collective planar coil according to another embodiment. In FIG. 4, the collective rectangular planar coil 31 is formed by arranging rectangular planar coils 60 in a line on a printed wiring board 62 at equal intervals. The collective rectangular planar coil 31 is formed by winding a conductor around a winding core (bobbin) 61 in a predetermined manner, bonding the conductors by energizing and heating, and forming a fan shape. As a matter of course, the collective rectangular planar coils 31 are electrically connected in series via a wiring pattern provided on the printed wiring board 62 so that current flows in the same direction in the collective rectangular planar coils. doing.
Further, the upper surface of the collective rectangular planar coil is covered with an insulating layer, for example, an epoxy resin, a fluorine resin or the like. The connection between the collective rectangular planar coil 60 and the printed wiring board 62 was screwed through a hole (not shown) provided in the core 61. Of course, you may make it adhere | attach using an adhesive material. The number of the rectangular planar coils 60 to be arranged may be arbitrarily set according to the target electromotive force. Of course, the rectangular planar coils 60 may be arranged in a multi-row and multi-column (matrix) such as a cross shape.

FIG. 5 shows a laminated inductor according to another embodiment. The multilayer inductor 50 includes:
The conductor is formed in a spiral shape (coil shape), and the upper and lower conductor layers are connected through a through hole 12 provided in the magnetic layer. First, a magnetic green sheet 11 is prepared. The green sheet 11 is a sheet of the material before firing. Then, a through hole 12 is formed in the green sheet 11. Next, the conductor layers 11a to 11e are connected by through holes so as to form a part of the coil pattern, and are printed. Then, the magnetic layers on which the conductive layers are printed are overlapped and pressed, and the upper and lower conductive layers are connected through the through holes 12 to form a coil in the magnetic laminate. Since the green sheets can be laminated together, the number of manufacturing steps is reduced.

The members constituting the bar-shaped magnet 2 may be any members. For example, a resin magnet in which magnetic powder is blended and molded into a synthetic resin binder, or Mn-Al
Materials such as ferrites of Mn-Zn type, amorphous alloys of Co type, Fe type, etc., soft magnetic materials having ultrafine structure crystallized amorphous alloys, metallic soft magnetic materials of silicon steel, permalloy dust, etc. It may be.

The outer shape of the magnet is not limited to a rod, but may be any shape such as a sphere or a disk. In the case of a disk-shaped magnet, the magnetization polarity may be arbitrarily set such that a circular shape is equally divided to form N poles and S poles alternately, or the upper surface has N poles and the lower surface has S poles.

In the above embodiment, the planar coil,
It goes without saying that the magnet, the base and the like may be set to any size. Further, the fixed contacts 4 and 4 do not necessarily need to be arranged on the planar coil. You may arrange | position in the vicinity of a coil, and arbitrary parts.

Further, the means for moving the key top to and away from the planar coil is optional.
As in the conventional example shown in FIG. 18, a configuration may be employed in which a key top is guided and slid by a bearing (not shown) of a housing using a compression coil spring. Furthermore, the base on which the planar coil is disposed does not necessarily need to be on the circuit board,
You may arrange | position to arbitrary members, such as a bottom face of a housing | casing.

Further, it is not necessary to provide the movable contact 3 on the bottom surface of the key top (movable portion) 5. For example, FIG.
As shown in FIG. 7, a diaphragm 77 having a movable contact 73 is provided between a key top (movable part) 75 and a circuit board (fixed part) 6, and the diaphragm 77 is attached to the key top 75.
To make the fixed contacts 4 and 4 conductive. The diaphragm 77 is formed by injection molding an insulating member having a substantially dish-shaped cross section, such as rubber or plastic, so as to be elastically deformable. Of course, it is needless to say that the diaphragm may be made of an elastically deformable conductor, for example, a phosphor bronze plate, so that the movable contact is not required. Alternatively, the diaphragm may be made conductive by adding powder particles of carbon, Ag, or the like, or metal fibers to a rubber or plastic member.

Furthermore, the diaphragm itself may be made into a magnetic material by kneading the magnet powder into the diaphragm or disposing a magnetic material on the surface of the diaphragm by sputtering or the like. (Not shown.) In this case, it is needless to say that the key top does not need to include a magnet. Of course, it can be included at all.

FIG. 14 shows a mobile radio terminal equipped with another switch device according to the embodiment of the present invention. The dial button 175 has a contact 182 on the bottom surface, and is configured to conduct between two contacts provided separately on the circuit board 178. Also in this case, predetermined coils are provided on the front and back surfaces of the circuit board 178. Further, a rod-shaped magnet or a powder member constituting the magnet is kneaded as desired in the dial button 175, and a current flows through the coil in response to the pressing and separating operations of the dial button 175. , To generate power.

As described above, the electromotive switch device according to the first embodiment of the present invention can be mounted on a printed wiring board for controlling an electronic device. Then, a keyboard for a remote controller, a word processor, a personal computer, or the like is formed, and power is generated together with a key input process, thereby reducing the consumption of a battery built in the electronic device or eliminating the need for battery replacement.

(Embodiment 2) FIG. 6 is a sectional view of an electromotive switch device according to a second embodiment of the present invention. The electromotive switch device 200 in this case has basically the same configuration as the electromotive switch device 100 in the first embodiment.
A different configuration is that, instead of incorporating a rod-shaped solid magnet in the keytop, a magnetic powder is mixed with the keytop member to make the keytop itself a magnet. That is, Mn-Al
System, ferrite such as Mn-Zn system, amorphous alloy such as Co system, Fe system, soft magnetic material having ultrafine structure crystallized amorphous alloy, silicon steel, powder of metal soft magnetic material such as permalloy dust, Or rubber particles,
It is mixed with an elastic member such as plastic and integrally molded to give a polarity. As shown in FIG. 2, the appearance is the same as that of FIG. The first embodiment is different from the first embodiment in that a movable contact 23 is provided on the bottom surface of the key top 22 containing magnetic powder, and the key top containing magnetic powder is elastically deformed so as to be able to contact and separate from the planar coils 4, 4. What is necessary is just to implement similarly.

Further, it is not always necessary to provide the movable contact 23 on the bottom surface of the key top (movable portion) 22 containing magnetic powder. For example, as shown in FIG. 8, a diaphragm 77 having a movable contact 73 is provided between a key top (movable part) 82 containing magnetic powder and the circuit board (fixed part) 6.
The diaphragm 77 may be pressed by the key top 82 to make the fixed contacts 4 and 4 conductive.

Further, a tact switch (also referred to as a limit switch, a micro switch, or the like) in which the movable contact 3 and the two fixed contacts 4, 4 separated from each other are sealed in a resin case may be used. For example, FIG. 9 shows an example. In FIG. 9, reference numeral 91 denotes a planar fusion coil manufactured by the method described above. Reference numeral 92 denotes a keytop, which is made by mixing magnetic powder with a keytop member to impart polarity, and using the keytop itself as a magnet. 93 is a tact switch, and 95 is a housing which slidably holds the key top. 9
6 is a circuit board, 97 is an elastic dustproof film (diaphragm). The key top 92 is pressed against the elastic dust-proof film (diaphragm) 97 to switch the contact (not shown) of the tact switch 93. Tact switch 9
3 is soldered to a circuit board 96 having a desired wiring pattern. A planar fusion coil 91 is arranged near the tact switch 93. In the embodiment shown in FIG. 9, the planar fusion coil is arranged in an annular shape so as to surround the tact switch 93. Elastic dustproof membrane (diaphragm) 9
Reference numeral 7 is made of an elastic member such as a soft plastic such as silicon rubber, fluoro rubber, or vinyl chloride. According to the above configuration, the key top descends and approaches the planar fusion coil, or rises and separates, thereby generating an electromotive force in the planar fusion coil to generate power. In the case of FIG. 9, it goes without saying that a configuration may be adopted in which a bar-shaped solid magnet is built in the key top.

The diaphragm itself may be made into a magnetic material by kneading magnet powder into an elastic dust-proof film (diaphragm) or disposing a magnetic material on the surface of the diaphragm by sputtering or the like. In this case, it is not necessary to include a magnet in the key top. Of course, it can be included at all.

FIG. 15 is a sectional view of a main part of another switch device 600 according to the second embodiment. In FIG. 15, reference numeral 161 denotes an upper housing, 162 denotes a lower housing, 163 denotes a flat fusion coil (flat coil),
164 is a switch cover provided with a magnet (push button switch cover), 165 is a circuit board, and 166 is a tact switch. In the case of this embodiment, an operation unit in which a push button switch cover 164 (a switch cover provided with a magnet) provided in an opening window portion 170 of an upper housing 161 formed of a hard thermoplastic synthetic resin is located in the opening window portion. And a fitting portion provided with a protruding member 168 fitted into a groove portion 167 provided on the inner side wall of the opening window portion on the outer peripheral edge of the operation portion via a thin portion 169. It is formed integrally with the upper housing 161 by resin.

The push button switch cover 164 (switch cover provided with a magnet) is a magnetic material (magnet) formed by kneading a soft rubber or plastic member with magnet powder. Of course, a magnetic film may be provided on the surface by sputtering or the like.

Flat fusion coil (flat coil) 16
3 may be manufactured in the same manner as in the first embodiment, and may be disposed via an adhesive or the like. It is needless to say that the coil may be formed using a copper foil for a circuit pattern adhered to the front and back surfaces of the circuit board.

Also in the case of the second embodiment, the electromotive switch device can be mounted on a printed wiring board for controlling electronic equipment. Then, a keyboard for a remote controller, a word processor, a personal computer, or the like is formed, and power is generated together with a key input process, thereby reducing the consumption of a battery built in the electronic device or eliminating the need for battery replacement.

(Embodiment 3) FIG. 10 is an external perspective view of a main part of a remote controller according to a third embodiment of the present invention, and FIG. 11 is a circuit block diagram of the remote controller.

In FIG. 10, the remote controller 1
Reference numeral 01 denotes a predetermined electronic device control circuit, a switch contact portion, an infrared light emitting portion, a secondary battery for power supply (none is shown) in a resin-molded housing (cabinet), and Examples 1 to 2. And any one of the electromotive type switching devices described in (1). The solar cell 102 is provided on the outer surface of the housing.
And various control switches, such as switches (key tops)
103 and the like. The solar cell 102 is for charging a secondary battery for power supply.

In the above configuration, by operating the switch (key top) 103 of the remote controller, the electromotive switch device 100 generates an electromotive force to generate power. Electromotive switch device 100
The power output obtained in step (1) is converted to DC by the rectifier circuit 14 shown in FIG. If the power generation output is still supplied via the rectifier circuit 14 even after the charging of the secondary battery 13 is completed, it is discharged by the excess overcurrent prevention circuit 39. Further, even when an excessive voltage is applied to the voltage control circuit 40, the excessive voltage is consumed by the overcurrent prevention circuit 39.
Then, a control circuit (not shown) of the remote controller 101 is driven by the electric power from the secondary battery 13 via the voltage control circuit 40.

As described above, the remote controller according to the present invention can automatically generate electric power in accordance with the operation of the switch, and the electric power stored in the secondary battery 13 enables the remote controller to be driven. That is, the conventional battery (or battery) constituting the power supply is not required.

Incidentally, in addition to the above electromotive type switch device,
Needless to say, a configuration including a solar cell may be employed. Of course, a conventional battery may be provided.

FIG. 12 is an external perspective view of a main part of another portable information terminal according to the third embodiment of the present invention, and FIG. 13 is a circuit block diagram of the portable information terminal. 12, reference numeral 141 denotes a portable information terminal, 142 denotes a display unit (liquid crystal), 143 denotes a keyboard, 145 denotes a charging circuit unit, and 146 denotes a battery. The keyboard 143 in this case is also constituted by one of the switch devices described in the first and second embodiments. Then, by operating the keytop, the switch device 143 generates electromotive force to generate power.

The electronic devices incorporating the switch devices described in the first and second embodiments include portable information terminals such as PCs, WPs, and electronic books, as well as mobile communication devices such as mobile phones and PHSs. Needless to say, any electronic device may be used. As described above, the electromotive switch device of the present invention constitutes a keyboard or a switch of various electronic devices, and generates electric power in the process of key input or switch operation.

[0057]

As described above, the electromotive switch device of the present invention can be mounted on a printed wiring board for controlling electronic equipment. Then, a keyboard for a remote controller, a word processor, a personal computer, or the like is formed, and power is generated together with a key input process, thereby reducing the consumption of a battery built in the electronic device or eliminating the need for battery replacement. In addition, the use of batteries can be reduced, and the global environment can be protected.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the concept of an electromotive switch device according to a first embodiment of the present invention.

2A is a plan view of a flat coil constituting the electromotive switch device of FIG. 1; FIG. 2B is a back view of a flat coil constituting the electromotive switch device of FIG. 1;

FIG. 3 is an exploded perspective view of a power generation coil unit used in the configuration of the present invention.

FIG. 4 is a perspective view of a collective rectangular planar coil used in the configuration of the present invention.

FIG. 5 is an exploded perspective view of a laminated chip coil used in the configuration of the present invention.

FIG. 6 is a sectional view of the concept of an electromotive switch device according to a second embodiment of the present invention.

FIG. 7 is a sectional view of the concept of another electromotive switch device according to the first embodiment of the present invention.

FIG. 8 is a sectional view showing the concept of another electromotive switch device according to a second embodiment of the present invention.

FIG. 9 is a sectional view of the concept of another electromotive switch device according to a second embodiment of the present invention.

FIG. 10 is an external perspective view of a main part of a remote controller according to a third embodiment of the present invention.

FIG. 11 is a circuit block diagram of FIG. 10;

FIG. 12 is an external perspective view of a main part of another portable information terminal according to a third embodiment of the present invention.

FIG. 13 is a circuit block diagram of FIG. 12;

FIG. 14 is an external perspective view and a main part cross-sectional view of a mobile wireless terminal device having another switch device according to the first embodiment.

FIG. 15 is a sectional view of a main part of another switch device 600 according to the second embodiment of the present invention.

16A is a configuration diagram of a concept of a conventional key switch. FIG. 16B is a circuit configuration diagram of a concept of a conventional key switch.

FIG. 17 is a configuration diagram of a concept of a conventional keyboard device.

18 is a configuration diagram of a concept of a key switch constituting FIG.

[Explanation of symbols]

1A, 1B Flat coil (flat coil) 2,72 Magnet (magnet) 3,23,73,182 Movable contact (conductor) 4,181 Fixed contact (conductor) 5,75 Key top (movable part) 6,96, 165,178 Circuit board (fixed part) 7 Insulating layer 11 Dielectric substrate 11a, 11b, 11c, 11d, 11e Conductor (electrode) 12 Through hole 13 Secondary battery 14 Rectifier circuit 15 Power generation coil unit 22, 82, 92 Magnetic powder Key 31 (movable part) including 31 31 collective rectangular planar coil 36 frame 36a hole 36b passage 37, 91, 163 planar fusion coil 38 plate 39 overcurrent prevention circuit 40 voltage control circuit 50 laminated chip coil 60 Rectangular planar coil 61 Core (bobbin) 62 Printed wiring board 63 Adhesive 77 Diaphragm 93 166 Tact switch 95 Housing 97 Elastic dustproof film (diaphragm) 101 Remote controller (remote controller) 102 Solar cell 103 Switch 100, 200, 300, 400, 500, 600 Electromotive switch device 141 Portable information terminal 142 Display unit 143 Keyboard 145 Charging circuit section 146 Battery (secondary battery) 164 Switch cover with magnet 175 Dial button 176 Dial button support

Claims (22)

[Claims] 1. A fixed part comprising a planar coil and a contact, and a movable part comprising a contact and a magnet, wherein the movable part is supported so as to be capable of coming and going with respect to the fixed part. Electromotive type switch device. 2. A substrate comprising a planar coil and contacts separated from each other, and a movable portion having a contact on the surface and a magnet built therein, the movable portion being supported on the substrate so as to be able to come and go. An electromotive switch device characterized in that: 3. The electromotive switch device according to claim 2, wherein the movable portion is formed of one of a plastic member and a rubber member. 4. A fixed part comprising a planar coil and a contact, and a movable part having a contact on its surface and having a magnet formed by mixing magnetic powder, wherein said movable part is provided with respect to said fixed part. An electromotive switch device characterized in that the switch is detachably supported. 5. A substrate comprising a planar coil and contacts separated from each other, and a movable portion provided with contacts on its surface and formed by mixing magnetic powder to form a magnet. An electromotive switch device characterized in that the switch is detachably supported. 6. The electromotive switch device according to claim 5, wherein the movable portion is formed of one of a plastic member and a rubber member. 7. A multilayer inductor having contacts on its surface,
An electromotive switch device comprising: a contact portion on the surface; and a movable portion having a built-in magnet therein, and the movable portion is supported so as to be able to contact and separate from the laminated inductor. 8. A multilayer inductor having a contact on its surface,
An electromotive type switch device comprising: a movable portion having a contact on a surface thereof and a magnet formed by mixing magnetic powder; and wherein the movable portion is supported so as to be able to contact and separate from the laminated inductor. 9. An electronic apparatus comprising the electromotive switch device according to claim 1. 10. The electronic device according to claim 9, wherein the electronic device is one of a portable information terminal, a mobile communication device, and a remote controller. 11. A fixed part comprising a planar coil and a contact, a movable part containing a magnet, and a diaphragm located between the fixed part and the movable part and having a contact. An electromotive switch device, wherein the movable portion is supported so as to be able to approach and separate from the fixed portion. 12. A fixed part comprising a planar coil and a contact, a movable part containing a magnet, a diaphragm located between the fixed part and the movable part and made of a conductor member. An electromotive switch device, wherein the movable portion is supported so as to be able to approach and separate from the fixed portion. 13. A fixed portion including a planar coil and a contact, a movable portion formed by mixing a magnetic powder to form a magnet,
An electromotive type switch device comprising a diaphragm located between the fixed part and the movable part and having a contact, and supporting the movable part so as to be able to contact and separate from the fixed part. . 14. A fixed part comprising a planar coil and a contact, a movable part formed by mixing magnetic powder to form a magnet,
An electromotive switch device comprising a diaphragm, which is located between the fixed portion and the movable portion and is made of a conductor member, and supports the movable portion so as to be able to contact and separate from the fixed portion. 15. A fixed part comprising a planar coil and a switch, and a movable part having a magnet, wherein the movable part is supported so as to be able to approach and separate from the fixed part. Electric switch device. 16. A substrate comprising a substrate provided with a planar coil and a switch, and a movable portion having a magnet built therein, wherein the movable portion is supported so as to be able to approach and separate from the substrate. Electric switch device. 17. A fixed portion comprising a planar coil and a switch, and a movable portion formed by mixing a magnetic powder to form a magnet, and the movable portion is supported so as to be able to contact and separate from the fixed portion. An electromotive switch device characterized by the above-mentioned. 18. A substrate comprising a planar coil and a switch, and a movable portion formed by mixing magnetic powder to form a magnet, wherein the movable portion is supported so as to be able to approach and separate from the substrate. An electromotive switch device. 19. A fixed part comprising a planar coil and a contact, a movable part having a keytop, and a diaphragm located between the fixed part and the movable part and having a magnet and a contact. Wherein the movable part is supported so as to be able to approach and separate from the fixed part. 20. A fixed part comprising a planar coil and a contact, a movable part having a key top, and a magnet which is located between the fixed part and the movable part and which is made by mixing magnetic powder. And a diaphragm having a contact on a surface thereof, wherein the movable portion is supported so as to be capable of coming and going with respect to the fixed portion. 21. A fixed part comprising a planar coil and a switch, a movable part having a key top, and a diaphragm which is located between the fixed part and the movable part and has a magnet. An electromotive switch device, wherein the movable portion is supported so as to be able to approach and separate from the fixed portion. 22. A fixed portion having a planar coil and a switch, a movable portion having a key top, and a magnet which is located between the fixed portion and the movable portion and which is made by mixing magnetic powder. An electromotive switch device, comprising a diaphragm formed with the movable portion, wherein the movable portion is supported so as to be able to approach and separate from the fixed portion.