JP2018041690A - Electronic apparatus switch and elastic body - Google Patents

Abstract

An electronic device switch and an elastic body are provided that can electrically connect an electrode and a substrate with a simple configuration. An electronic device switch 1 includes an elastic elastic body 4A, an electrode-side protruding portion 43 protruding toward an electrode 3 at an electrode-side end portion 41, and a substrate protruding toward a substrate 6 at a substrate-side end portion 42. A side protrusion 44 is formed. An electrode side contact portion 51 of the circuit body 5A is formed on the electrode side protruding portion 43, and a substrate side contact portion 52 of the circuit body 5A is formed on the substrate side protruding portion 44, and the electrode side contact portion 51 and the substrate side are formed. The contact part 52 is electrically connected by the connection part 53 between contacts. When the elastic body 4A is disposed between the electrode 3 and the substrate 6, the elastic body 4A is elastically deformed by elastic compression, and the electrode-side protruding portion 43 presses the electrode 3, and the substrate-side protruding portion 44 holds the substrate 6. The electrode 3 is pressed and sandwiched between the electrode 3 and the substrate 6. [Selection] Figure 3

Description

  The present invention relates to an electronic device switch and an elastic body.

  2. Description of the Related Art Conventionally, among electronic device switches mounted on a vehicle, there is a touch type electronic device switch in which a user touches a touch surface provided on the electronic device switch to control on / off of the switch.

JP-A-2005-293913

  Among the touch-type electronic device switches described above, for example, a capacitive touch-type electronic device switch may be used as a lighting switch provided in a vehicle interior lighting device attached to a vehicle interior ceiling.

  The capacitance type touch electronic device switch is configured by stacking an electrode protection member on which a touch surface is formed, an electrode to be attached to the electrode protection member, and a substrate. A conductive rubber is interposed between the electrode and the substrate, and the conductive rubber contacts the electrode and the substrate, whereby the electrode and the substrate are electrically connected. The conductive rubber may cause a relatively larger dimensional tolerance than, for example, resin due to rubber moldability. Therefore, there is a technique in which a conductive spring is disposed between the substrate and the conductive rubber in order to reliably contact the conductive rubber with the rigid electrode and the substrate. One end of the spring is mounted on the substrate, the other end is in contact with the conductive rubber, and the spring is elastically deformed between the substrate and the conductive rubber so that the spring contracts. Then, due to the restoring force of the spring, the spring presses the conductive rubber against the electrode in the stacking direction, so that the conductive rubber is brought into surface contact with the electrode, thereby electrically connecting the substrate and the electrode. The

  However, the illumination switch described above has room for improvement in that the elastic body is pressed against the electrode using a separate member to electrically connect the electrode and the substrate.

  The present invention has been made in view of the above, and an object thereof is to provide an electronic device switch and an elastic body capable of electrically connecting an electrode and a substrate with a simple configuration.

  In order to achieve the above object, an electronic device switch according to the present invention includes an electrode protection member having a touch surface exposed to the outside, a side opposite to the side on which the touch surface is formed, and is opposed to the touch surface. An electrode, an elastic body having an insulating property, a substrate that controls an electronic device by a change in capacitance of the electrode, and a circuit body that electrically connects the electrode and the substrate, The elastic body includes an electrode-side protruding portion protruding toward the electrode side at an electrode-side end portion facing the electrode, a substrate-side end facing the electrode-side end portion in the first direction, and facing the substrate. A board-side protruding portion that protrudes toward the substrate side, and the circuit body includes an electrode-side contact portion that is formed on the electrode-side protruding portion and a substrate-side contact portion that is formed on the substrate-side protruding portion. And the electrode side contact portion and the substrate side contact A contact between the connecting portion for electrically connecting the door, characterized in that it comprises.

  In the electronic device switch according to the present invention, it is preferable that the inter-contact connection portion is formed at least on a part of the outer peripheral surface around the first direction of the elastic body.

  In the electronic device switch according to the present invention, it is preferable that the circuit body is formed on the entire surface of the elastic body.

  In the electronic device switch according to the present invention, the elastic body is formed with a through hole penetrating from the electrode side end portion to the substrate side end portion, and the inter-contact connection portion is formed at least in the through hole. It is preferred that

  In the electronic device switch according to the present invention, it is preferable that at least the through hole is filled with the connection portion between the contacts.

  In the electronic device switch according to the present invention, it is preferable that a plurality of at least one of the electrode side protruding portion and the substrate side protruding portion is formed.

  In the electronic device switch according to the present invention, the electrode-side protruding portion and the substrate-side protruding portion are formed in the same number, and the inter-contact connection portion includes a pair of the electrode-side contact portion and the substrate-side contact portion. Are preferably electrically connected.

  Further, in the elastic body according to the present invention, an electrode formed on the side opposite to the side on which the touch surface is formed and facing the touch surface of the electrode protection member on which the touch surface exposed to the outside is formed. And an insulating elastic body disposed between the electrode and the substrate that controls the electronic device by a change in capacitance, wherein the elastic body is disposed at an electrode side end facing the electrode. An electrode-side protruding portion that protrudes toward the electrode side; and a substrate-side protruding portion that faces the electrode-side end portion in the first direction and protrudes toward the substrate side at the substrate-side end portion facing the substrate. An electrode side contact portion formed on the electrode side protruding portion, a substrate side contact portion formed on the substrate side protruding portion, and the electrode side contact portion and the substrate side contact portion are electrically connected. A circuit body having a connection part between contact points is formed. And wherein the Rukoto.

  In the electronic device switch and the elastic body according to the present invention, the electrode-side contact portion of the circuit body is formed in the electrode-side protruding portion of the elastic body arranged between the electrode and the substrate, and the circuit board is formed in the substrate-side protruding portion. A side contact portion is formed, and the electrode side contact portion and the substrate side contact portion are electrically connected by the connection portion between the contacts of the circuit body, and the electrode side protruding portion presses the electrode by point contact with elastic deformation. Since the substrate-side contact portion presses the substrate by point contact with elastic deformation, the elastic body can be held in an electrically connected state between the electrode and the substrate without using a separate member. With the configuration, the electrode and the substrate can be electrically connected.

FIG. 1 is a vehicle interior lighting device equipped with the electronic device switch according to the first embodiment. FIG. 2 is a cross-sectional view of the vehicle interior lighting device on which the electronic device switch according to the first embodiment is mounted. FIG. 3 is an enlarged partial cross-sectional view of the electronic device switch according to the first embodiment. FIG. 4 is a diagram illustrating an elastic body of the electronic device switch according to the first embodiment. FIG. 5 is a cross-sectional view of the elastic body of the electronic device switch according to the first embodiment. FIG. 6 is a modification of the elastic body of the electronic device switch according to the first embodiment. FIG. 7 is a diagram illustrating an elastic body of the electronic device switch according to the second embodiment. FIG. 8 is a cross-sectional view of the elastic body of the electronic device switch according to the second embodiment. FIG. 9 is a diagram illustrating an elastic body of the electronic device switch according to the third embodiment.

  Hereinafter, embodiments of an electronic device switch and an elastic body according to the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same. The constituent elements in the following embodiments can be variously omitted, replaced, and changed without departing from the gist of the invention.

[Embodiment 1]
First, the electronic device switch according to the embodiment will be described. FIG. 1 is a vehicle interior lighting device equipped with the electronic device switch according to the first embodiment. FIG. 2 is a cross-sectional view of the vehicle interior lighting device on which the electronic device switch according to the first embodiment is mounted. FIG. 3 is an enlarged partial cross-sectional view of the electronic device switch according to the first embodiment. FIG. 4 is a diagram illustrating an elastic body of the electronic device switch according to the first embodiment. FIG. 5 is a cross-sectional view of the elastic body of the electronic device switch according to the first embodiment. 2 is a cross-sectional view taken along line AA in FIG. 3 is a cross-sectional view taken along the line BB in FIG. 5 is a cross-sectional view taken along the line CC in FIG. Moreover, the X direction of each figure is a width direction. The X1 direction is the direction on the driver's seat side, and the X2 direction is the direction on the passenger seat side. The Y direction is the front-rear direction of the vehicle and is a direction orthogonal to the X direction. The Y1 direction is the front direction of the vehicle, and the Y2 direction is the rear direction of the vehicle. The Z direction is the vertical direction of the vehicle, is the direction orthogonal to the X direction and the Y direction, and is the first direction. The Z1 direction is the downward direction of the vehicle and is the stacking direction of the members in the electronic device switch. The Z2 direction is the upward direction of the vehicle.

  As shown in FIG. 1, the electronic device switch 1 according to the present embodiment is mounted on a vehicle interior lighting device 10 mounted on a vehicle, for example. The electronic device switch 1 includes a lens 2, an electrode 3, an elastic body 4 </ b> A, a circuit body 5 </ b> A, and a substrate 6. The electronic device switch 1 turns on / off the illumination of the vehicle interior lighting device 10.

  Here, the vehicle interior lighting device 10 includes a housing 11, a substrate 6, an LED 12, a light guide 13, a lens 2, and a cover 14. Here, the vehicle interior lighting device 10 irradiates light to a driver seat D and a passenger seat P of a vehicle (not shown) separately. The driver seat D and the passenger seat P are positioned symmetrically in the width direction when viewed from the front of the vehicle. The driver seat D and the passenger seat P are located on the front side of the vehicle as viewed from the first direction. The front window 200 is located further forward than the driver seat D and the passenger seat P.

  As shown in FIG. 1, the vehicle interior lighting device 10 is attached to a vehicle interior ceiling 201 in the vehicle interior. The vehicle interior lighting device 10 is mounted between the driver's seat D and the passenger seat P in the vehicle interior ceiling 201, that is, in the center of the vehicle in the width direction and in the vicinity of the front window 200. The vehicle interior lighting device 10 includes an LED 12, which is two LEDs 12D and 12P in this embodiment. The LED 12D is attached to the driver seat D side with respect to the width direction, and the LED 12P is attached to the passenger seat P side. Therefore, the light from the LED 12D irradiates a driver seat area Da (not shown) including the driver seat D, and the light from the LED 12P irradiates a passenger seat area Pa (not shown) including the passenger seat P.

  As shown in FIGS. 1 and 2, the casing 11 of the vehicle interior lighting device 10 is formed in a rectangular box shape having an opening when viewed from the vertical direction of the vehicle, and the housing space portion 11 </ b> A formed inside the housing 11 Various electronic devices, electronic device switch 1 and LED 12 are accommodated. The lens 2 and the cover 14 are attached to the opening of the housing 11 from the lower side. A peripheral wall facing the opening of the housing 11 is attached to the vehicle interior ceiling 201. In the case 11, each member is laminated in the order of the substrate 6, the LED 12, the light guide 13, the lens 2, and the cover 14 on the surface exposed to the accommodation space 11 </ b> A of the peripheral wall facing the opening. The The casing 11 is made of an insulating synthetic resin.

  The substrate 6 performs ON / OFF control of the LED 12. The board 6 also controls various electronic devices mounted on the vehicle interior lighting device 10. The board | substrate 6 is formed in flat form seeing from the front-back direction and the downward direction of a vehicle, as shown in FIG. The board 6 is arranged on the peripheral wall attached to the vehicle interior ceiling 201 so as to be parallel to the surface exposed to the accommodation space 11A and laminated in the downward direction when viewed from the front-rear direction of the vehicle. The substrate 6 is wired on the mounting surface 6a located on the lower side, printed in the present embodiment, and the LED 12 is attached.

  The LED 12 is a light emitting element in the vehicle interior lighting device 10. The LED 12 emits light and emits light when power is supplied. The LED 12 is provided with an LED 12D on the driver's seat D side and an LED 12P on the passenger seat P side in the vehicle interior lighting device 10, and the light from the LED 12D irradiates the driver seat area Da, and the light from the LED 12P passes through the passenger seat area. Irradiate. The LED 12 is a surface-mounted LED formed in a flat plate shape, and is mounted on the mounting surface 6 a in parallel to the substrate 6. Therefore, it is the surface opposite to the mounted surface, and the light emitting surface that emits light from the LED 12 is positioned parallel to the substrate 6, and the optical axis of the light emitted from the light emitting surface of the LED 12 is It faces in the direction perpendicular to the light emitting surface.

  The light guide 13 has a bent portion, and changes the optical axis of the light emitted from the light emitting surface of the LED 12 from the first direction toward the driver seat area Da and the passenger seat area Pa. The light guide 13 is made of glass having transparency, and is provided corresponding to each of the LEDs 12D and 12P. The light guide 13 is provided on the lower side of the LED 12. The light guide 13 guides light incident from one end face facing the light emitting surface of the LED 12 to the bent portion, and in the bent portion, the light in the vertical direction is directed to the driver seat area Da and the passenger seat area Pa. The light is emitted from the other end face. As a result, the driver's seat D and the passenger seat P can be irradiated with light.

  The lens 2 is a transparent member, and transmits light from the LED 12D and the LED 12P (hereinafter, LED 12) to the outside of the housing 11, that is, the vehicle interior in the vehicle interior illumination device 10. As shown in FIG. 1, the lens 2 is attached to a position that covers the substrate 6, the LED 12, and the light guide 13 stacked on the housing 11 with respect to the lower direction of the vehicle as viewed from the vertical direction of the vehicle. That is, the lens 2 is attached so as to cover the front direction of the vehicle and the entire width direction of the opening of the housing 11 when viewed from the vertical direction of the vehicle. The surface of the lens 2 opposite to the surface exposed to the accommodation space 11A is exposed to the outside. The lens 2 has a first projecting portion 21D and a second projecting portion 21P having the same shape at the rear end portion of the vehicle. When viewed from the vertical direction of the vehicle, the first protrusion 21D is formed on the driver's seat D side, and the second protrusion 21P is formed on the passenger seat P side. The first protrusion 21D and the second protrusion 21P are formed in a rectangular shape having long sides in the width direction. As shown in FIG. 2, the first protrusion 21 </ b> D and the second protrusion 21 </ b> P are formed to protrude upward, that is, toward the substrate 6.

  The cover 14 is attached to the housing 11 and closes the opening of the housing 11. As shown in FIG. 1, the cover 14 is disposed in the rear direction of the vehicle with respect to the lens 2 when viewed from the vertical direction of the vehicle. The cover 14 is attached so as to cover the rear end of the lens 2 and the region including the first protrusion 21D and the second protrusion 21P from the lower side of the vehicle. The cover 14 is formed of a synthetic resin or the like.

  In the vehicle interior lighting device 10, the electronic device switch 1 is configured such that the passenger touches the touch surface T formed on the vehicle interior lighting device 10, so that the light from the LED 12 is applied to the driver seat area Da or the passenger seat area Pa. Is a so-called illumination control switch that can be irradiated or not irradiated. The electronic device switch 1 is a capacitance type touch switch that detects a change in capacitance when a passenger touches the touch surface T and repeatedly turns on and off the vehicle interior lighting device 10. . The electronic device switch 1 enables the passenger to irradiate a plurality of target areas with light in the vehicle interior lighting device 10. In the present embodiment, the electronic device switch 1 includes a first electronic device switch 1a, a second electronic device switch 1b, and a third electronic device switch 1c.

  The lens 2 is an electrode protection member, and a touch surface T exposed to the outside is formed. The touch surface T switches the ON state and the OFF state of the vehicle interior lighting device 10 by the electronic device switch 1 when the passenger touches it. The touch surface T is formed on a surface exposed to the outside of the lens 2. As shown in FIG. 1, the touch surface T includes a plurality of touch surfaces, a first touch surface Ta, a second touch surface Tb, and a third touch surface Tc, which are formed corresponding to a target area irradiated with light. Consists of. The first touch surface Ta corresponds to the first electronic device switch 1a, the second touch surface Tb corresponds to the second electronic device switch 1b, and the third touch surface Tc corresponds to the third electronic device switch 1c. The first touch surface Ta, the second touch surface Tb, and the third touch surface Tc are arranged in a line along the width direction. In the width direction, the first touch surface Ta is located on the driver's seat D side, the second touch surface Tb is located on the center portion, and the third touch surface Tc is located on the passenger seat P side. That is, in the present embodiment, when the first electronic device switch 1a is turned on by the first touch surface Ta, the LED 12D emits light and irradiates the driver's seat area Da. Further, when the second electronic device switch 1b is turned on by the second touch surface Tb, the LED 12D and the LED 12P emit light and irradiate the driver seat area Da and the passenger seat area Pa. When the third electronic device switch 1c is turned on by the third touch surface Tc, the LED 12P emits light and irradiates the passenger seat area Pa. Therefore, when the passenger wants to irradiate light on the desired target area, he can irradiate the desired target area by touching the touch surfaces Ta to Tc corresponding to the target area.

  The electrode 3 is formed on the opposite side of the touch surface T of the lens 2, and generates an electric field on the touch surface T when power is supplied from a power source. The electrode 3 is formed on the lens 2 so as to face the substrate 6 in the vertical direction. The electrode 3 is formed away from the substrate 6 in the vertical direction. The electrode 3 is a transparent electrode, for example, an inorganic compound thin film (ITO film) made of indium tin oxide (ITO) or the like. The electrode 3 is formed on the lens 2 by sputtering or the like. The electrode 3 is substantially colorless and transparent and has a low electrical resistivity. The electrode 3 in the present embodiment corresponds to the first to third electronic device switches 1a to 1c, and is configured by electrodes 3a to 3c corresponding to the touch surfaces Ta to Tc, respectively. The electrode 3a is formed to face the touch surface Ta in the vertical direction, and overlaps with the entire region or most of the region of the touch surface Ta. As shown in FIG. 1, the electrode 3a is formed from the front end of the lens 2 to the rear end of the vehicle and the first protrusion 21D along the front-rear direction of the vehicle as viewed from the top and bottom. Yes. The electrode 3b is formed to face the touch surface Tb in the vertical direction, and overlaps with the entire region or most of the region of the touch surface Tb. The electrode 3b is formed from the front end portion of the lens 2 to the rear end portion of the vehicle and the first projecting portion 21D along the vehicle front-rear direction when viewed from the vertical direction. The electrode 3c is formed to face the touch surface Tc in the vertical direction, and overlaps with the entire region or most of the region of the touch surface Tc. The electrode 3c is formed from the front end portion of the lens 2 to the rear end portion of the vehicle and the second projecting portion 21P along the vehicle front-rear direction when viewed from the vertical direction. An electrode non-formation region is provided between each of the electrodes 3a to 3c.

  The elastic body 4A is disposed between the electrode 3 and the substrate 6, and the circuit body 5A is routed between the electrode 3 and the substrate 6 that are separated in the vertical direction so that the electrode 3 and the substrate 6 are electrically connected. To connect. The elastic body 4A corresponds to each of the electronic device switches 1a to 1c, and a plurality of elastic bodies 4A are arranged to face the first projecting portion 21D and the second projecting portion 21P in the vertical direction. That is, the elastic body 4A is arranged at a position where it cannot be seen from the outside. The elastic body 4A is made of an insulating and elastically deformable resin such as rubber. 4 A of elastic bodies are formed in the column shape extended in an up-down direction. In the elastic body 4 </ b> A, the electrode side end 41 in the vertical direction that is the axial direction faces the electrode 3, and the substrate side end 42 faces the substrate 6. The elastic body 4A is formed with an electrode-side protruding portion 43 that protrudes toward the electrode 3 at the electrode-side end portion 41. As shown in FIG. 4, the electrode-side protruding portion 43 is formed to protrude to the electrode 3 side, that is, the lower side when viewed from the up-down direction. In the present embodiment, one electrode-side protrusion 43 is formed in a conical shape at the center of the electrode-side end 41. The elastic body 4 </ b> A is formed with a substrate-side protruding portion 44 that protrudes toward the substrate 6 at the substrate-side end portion 42. As shown in FIG. 4, the substrate-side protruding portion 44 is formed so as to protrude toward the substrate 6 side, that is, the upward direction when viewed from the vertical direction. In the present embodiment, one substrate-side protrusion 44 is formed in a conical shape at the center of the substrate-side end portion 42. Here, the elastic body 4 </ b> A is formed such that the vertical length is longer than the vertical distance between the electrode 3 and the substrate 6. Therefore, when the elastic body 4A is disposed between the electrode 3 and the substrate 6, it is elastically compressed in the vertical direction, but the electrode side protrusion 43 and the substrate side protrusion 44 are positively elastically compressed. It becomes. As a result, the elastic body 4 </ b> A is in a state where the electrode 3 is pressed by the elastically compressed electrode side protrusion 43 and the substrate 6 is pressed by the substrate side protrusion 44.

  The circuit body 5 </ b> A electrically connects the electrode 3 and the substrate 6. The circuit body 5A corresponds to each of the electronic device switches 1a to 1c, and is formed on each elastic body 4A. The circuit body 5A is a resin to which conductive metal particles are added, is formed by a dispenser, and is attached to the elastic body 4A. The circuit body 5A in the present embodiment is formed on the entire surface of the elastic body 4A as shown in FIG. The circuit body 5 </ b> A includes an electrode side contact portion 51, a substrate side contact portion 52, and an inter-contact connection portion 53. The electrode side contact part 51 is formed in the electrode side protrusion part 43 of 4 A of elastic bodies, and is formed in the whole area | region of the electrode side edge part 41 in this embodiment. The substrate-side contact portion 52 is formed on the substrate-side protruding portion 44 of the elastic body 4A, and is formed in the entire region of the substrate-side end portion 42 in this embodiment. The inter-contact connection portion 53 electrically connects the electrode-side contact portion 51 and the substrate-side contact portion 52. In the present embodiment, the contact portion 53 is formed in the entire area of the outer peripheral surface around the vertical direction of the elastic body 4A, that is, in the entire region. It is formed. That is, in the circuit body 5A, the electrode side protruding portion 43 and the substrate side protruding portion 44 of the elastic body 4A are pressed against the electrode 3 and the substrate 6 by elastic compression, so that the electrode side contact portion 51 and the electrode 3 are The board-side contact portion 52 is electrically connected to the board 6. Therefore, the circuit body 5A electrically connects the electrode 3 and the substrate 6 because the electrode-side contact portion 51 and the substrate-side contact portion 52 are electrically connected by the inter-contact connection portion 53.

  The substrate 6 controls the vehicle interior lighting device 10 by changing the capacitance of the electrode 3. The substrate 6 supplies power from the power source to the electrode 3 via the circuit body 5A formed on the elastic body 4A via the substrate wiring routed on the mounting surface 6a. The substrate 6 is mounted with a voltage detection circuit (not shown) that detects the voltage value of the electrode 3, and detects a change in the capacitance of the electrode 3.

  The housing 7 is for protecting the circuit body 5A formed on the elastic body 4A. As shown in FIG. 3, the housing 7 is formed of a synthetic resin or the like, and is formed in a cylindrical shape having an insertion hole into which the elastic body 4A is inserted. The housing 7 is formed such that the length to both ends in the vertical direction is shorter than the length in the vertical direction of the elastic body 4A. The housing 7 is formed with flange portions 71 and 72 projecting radially outward at both ends in the vertical direction. In the housing 7, the collar portion 71 is in contact with the electrode 3 a and the collar portion 72 is in contact with the substrate 6 in a state where the inserted elastic body 4 </ b> A is elastically compressed between the electrode 3 and the substrate 6. The housing 7 is attached to the substrate 6. Thereby, the elastic body 4 </ b> A inserted into the housing 7 is restricted from moving with respect to the electrode 3 and the substrate 6.

  As described above, the electronic device switch 1 is composed of the lens 2 as the electrode protection member, the electrode 3, the elastic body 4A, the circuit body 5A, and the substrate 6, and the power from the power source is supplied to the substrate 6. Can be supplied to the electrode 3 and the passenger can touch the touch surface T formed on the lens 2 to control the ON / OFF of the vehicle interior lighting device 10, that is, the drive of the LED 12. It is.

  Next, a case where the passenger touches the touch surface T and the target area is illuminated by the vehicle interior lighting device 10 will be described. First, when the passenger turns on the ignition of the vehicle, electric power is supplied from the power source to the board 6 to energize the board side contact part 52, the inter-contact connection part 53 and the electrode side contact part 51 of the circuit body 5A. 3 is supplied. An electric field is generated on the touch surface T by supplying power to the electrode 3. For example, when the passenger touches the first touch surface Ta to irradiate light to the driver's seat area Da, the human body has conductivity, so that an electric current flows between the electrode 3 and the passenger, thereby touching The capacitance at the surface Ta changes. The voltage detection circuit on the substrate 6 detects that the capacitance has changed, and supplies power to the LED 12D, that is, turns it on. The LED 12D emits light and irradiates the driver's seat area Da when power is supplied. On the other hand, when the passenger finishes illuminating the driver seat area Da, the board 12 indicates that the capacitance has changed by touching the first touch surface Ta again with the LED 12D emitting light. The voltage detection circuit 6 detects again, and the supply of power to the LED 12D is cut off, that is, turned off.

  In the electronic device switch 1 according to the present embodiment, the elastic body 4A is disposed between the electrode 3 and the substrate 6 in a state where the electrode side protruding portion 43 and the substrate side protruding portion 44 are elastically compressed. That is, the elastic body 4A is sandwiched between the electrode 3 and the substrate 6 in a state where the electrode 3 and the substrate 6 are pressed by the electrode side protruding portion 43 and the substrate side protruding portion 44, respectively. Since the electrode-side protruding portion 43 and the substrate-side protruding portion 44 that are elastically compressed are formed with the electrode-side contact portion 51 and the substrate-side contact portion 52 that are electrically connected by the inter-contact connection portion 53, respectively. The substrate 6 and the electrode 3 are electrically connected by a circuit body 5A formed on the elastic body 4A. Therefore, the elastic body 4A does not contact the electrode 3 and the substrate 6 over the entire surface of the electrode side end portion 41 and the substrate side end portion 42, so that the pressing state of the elastic body 4A against the electrode 3 and the substrate 6 is ensured. Without using a separate member, the electrode 3 and the substrate 6 can be electrically connected by the elastic body 4A on which the circuit body 5A is formed. Thereby, the electronic device switch 1 can electrically connect the electrode 3 and the board | substrate 6 with a simple structure.

  Moreover, since the electronic device switch 1 according to the present embodiment can reduce the number of constituent members in the electrical connection between the electrode 3 and the substrate 6 as compared with the case where another member is used, The number of electrical connection points can be reduced. Thereby, the electronic device switch 1 can improve electrical connection reliability.

  Further, for example, in the case where the entire surface of the electrode side end 41 and the substrate side end 42 is in contact with the electrode 3 and the substrate 6, which region of the electrode side end 41 and the substrate side end 42 is the electrode 3 and the substrate 6, the contact area corresponding to the entire region of the electrode side end portion 41 and the substrate side end portion 42 must be secured in the electrode 3 and the substrate 6. On the other hand, the contact positions of the electrode-side protruding portion 43 and the substrate-side protruding portion 44 of the elastic body 4A and the electrode 3 and the substrate 6 can be easily grasped. The contact area can be reduced. Thereby, the manufacturing cost of the electronic device switch 1 can be reduced.

  In the electronic device switch 1 according to the present embodiment, the electrode-side protruding portion 43 and the substrate-side protruding portion 44 are formed on the elastic body 4A, and are electrically connected to the electrode 3 and the substrate 6 by point contact. As for the contact area, since the point contact is narrower than the surface contact, the elastic body 4A can be brought into contact with the electrode 3 and the substrate 6 with a stronger pressing force. The adhesion can be improved, and the reliability of the electronic device switch 1 can be improved.

  Further, in the electronic device switch 1 according to the present embodiment, the electrode-side protruding portion 43 and the substrate-side protruding portion 44 of the elastic body 4A are elastically compressed and are in contact with the electrode 3 and the substrate 6, so that the elastic body 4A Even if the dimensional tolerance is set to be large, the elastic body 4A can absorb the dimensional tolerance generated between the electrode 3 and the substrate 6.

  In addition, the electronic device switch 1 according to the present embodiment is formed of a resin to which conductive metal particles are added in the circuit body 5A, and is attached to the elastic body 4A. This is constituted by a general member rather than a conductive rubber which is a so-called special product which is configured by adding a conductive substance to rubber as an elastic body, for example. Therefore, the electronic device switch 1 can reduce costs and improve productivity.

  In the first embodiment, the electrode-side protruding portion 43 and the substrate-side protruding portion 44 are formed one by one on the electrode-side end portion 41 and the substrate-side end portion 42, respectively, but the present invention is not limited to this. Two or more electrode side protruding portions 43 and substrate side protruding portions 44 may be formed with respect to the electrode side end portion 41 and the substrate side end portion 42. FIG. 6 is a modification of the elastic body of the electronic device switch according to the first embodiment. In the elastic body 4 </ b> A shown in FIG. 6, a plurality of electrode-side protruding portions 43 are formed at the electrode-side end portion 41, and one substrate-side protruding portion 44 is formed at the substrate-side end portion 42. By forming a plurality of electrode-side protrusions 43 and substrate-side protrusions 44 with respect to the electrode-side end portion 41 and the substrate-side end portion 42, the number of point contacts of the elastic body 4A with respect to the electrode 3 and the substrate 6 increases. Therefore, the electrical connection reliability of the electronic device switch 1 can be further improved.

[Embodiment 2]
Next, the electronic device switch 1 according to the second embodiment will be described. The electronic device switch 1 according to the second embodiment is different from the electronic device switch 1 of the first embodiment in that the circuit body 5B is formed with respect to the elastic body 4B. FIG. 7 is a diagram illustrating an elastic body of the electronic device switch according to the second embodiment. FIG. 8 is a cross-sectional view of the elastic body of the electronic device switch according to the second embodiment. 8 is a cross-sectional view taken along the line DD of FIG.

  As shown in FIGS. 7 and 8, the elastic body 4 </ b> B has a cylindrical shape and has a through hole 45. The through hole 45 penetrates the electrode side end 41 and the substrate side end 42 in the vertical direction. That is, the electrode side end 41 and the substrate side end 42 are formed in a ring shape. In the present embodiment, a plurality of electrode side protruding portions 43 are formed at equal intervals in the circumferential direction at the electrode side end portion 41. In the present embodiment, a plurality of substrate side protruding portions 44 are formed at equal intervals in the circumferential direction at the substrate side end portion 42.

  In the circuit body 5B, the connection part 53 between the contacts is formed inside the elastic body 4B, that is, in the through hole 45. The inter-contact connection portion 53 in the present embodiment is formed by filling the through hole 45. The connection part 53 between contacts is formed in each electrode side protrusion part 43, and is electrically connected with the electrode side contact part 51 formed in the whole area | region of the electrode side edge part 41 in this embodiment, and each board | substrate side It is formed in the protruding portion 44 and is electrically connected to the substrate side contact portion 52 formed in the entire region of the substrate side end portion 42 in this embodiment.

  As described above, in the electronic device switch 1 according to the present embodiment, since the contact connection portion 53 is not formed on the outer peripheral surface around the vertical direction of the elastic body 4B, the contact connection portion 53 is damaged by an external force or the like. This can be suppressed. Therefore, the electrical connection reliability of the electronic device switch 1 can be further improved.

  Further, since the inter-contact connection portion 53 is filled in the through hole 45, it is possible to suppress a decrease in the rigidity of the elastic body 4B. Therefore, in the elastic body 4B, the electrode side protrusion 43 and the substrate side protrusion 44 are provided. It is possible to suppress the elastic compression of the portion excluding. Therefore, the electrode-side protruding portion 43 and the substrate-side protruding portion 44 can be reliably elastically compressed, and can be surely brought into point contact with the electrode 3 and the substrate 6. Thereby, the electrical connection reliability of the electronic device switch 1 can be further improved.

  In the second embodiment, the through-hole 45 is filled with the inter-contact connection portion 53. However, the present invention is not limited to this, and the inter-contact connection portion 53 is formed on the inner peripheral surface of the through-hole 45. Also good. In this case, since the total amount of the circuit body 5B can be reduced as compared with the case where the through-hole 45 is filled with the inter-contact connection portion 53, the manufacturing cost can be reduced.

[Embodiment 3]
Next, the electronic device switch 1 according to the third embodiment will be described. The electronic device switch 1 according to the third embodiment is different from the electronic device switch 1 of the first embodiment in that the circuit body 5C is formed with respect to the elastic body 4C. FIG. 9 is a diagram illustrating an elastic body of the electronic device switch according to the third embodiment.

  In the elastic body 4C, two or more electrode-side protrusions 43 and substrate-side protrusions 44 are formed at the electrode-side end 41 and the substrate-side end 42, respectively. In the elastic body 4C in the present embodiment, when one electrode-side protrusion 43 and one substrate-side protrusion 44 are paired, three pairs of protrusions 43 and 44 are formed.

  In the circuit body 5 </ b> C, an electrode-side contact portion 51, a substrate-side contact portion 52, and an inter-contact connection portion 53 are formed with respect to the pair of projecting portions 43 and 44. In the present embodiment, electrode-side contact portions 51a to 51c, substrate-side contact portions 52a to 52c, and inter-contact connection portions 53a to 53c are formed on the three pairs of protrusions 43 and 44, respectively. Therefore, in the first embodiment, the inter-contact connection portion 53 is formed in the entire region of the outer peripheral surface around the vertical direction of the elastic body 4A, that is, in the entire region, but may be formed in a part of the outer peripheral surface. In this case, since the total amount of the circuit body 5C can be reduced as compared with the case where the inter-contact connection portion 53 is formed in the entire region of the outer peripheral surface around the vertical direction of the elastic body 4C, the manufacturing cost is reduced. be able to.

  In the circuit body 5C in the present embodiment, a plurality of circuits that electrically connect the electrode 3 and the substrate 6 to one elastic body 4C can be formed. Therefore, each circuit can be assigned to one electronic device switch 1. In the present embodiment, for example, the electrode side contact portion 51a, the substrate side contact portion 52a, and the inter-contact connection portion 53a that are electrically connected to the electrode 3a are assigned to the first electronic device switch 1a and are electrically connected to the electrode 3b. The electrode side contact portion 51b, the substrate side contact portion 52b, and the inter-contact connection portion 53b are assigned to the second electronic device switch 1b, and are electrically connected to the electrode 3c. The inter-contact connection portion 53c is assigned to the third electronic device switch 1c. Thereby, since one elastic body 4C is arrange | positioned between the electrode 3a and the board | substrate 6, since the some electronic device switch 1a-1c can be comprised, reduction of a number of parts can be aimed at. The manufacturing cost in the case where a plurality of electronic device switches 1a to 1c are mounted on one electronic device can be reduced.

  In the first to third embodiments, the elastic bodies 4A to 4C are made of rubber, which is an insulating and elastically deformable resin. However, the invention is not limited to this. Any elastic body having elasticity and insulation may be used.

  The circuit bodies 5A to 5C according to the first to third embodiments are formed by a dispenser, but are not limited thereto. For example, printing, vapor deposition, Molded Interconnect Device (MID), or the like is used. It may be formed. The circuit bodies 5A to 5C formed by these means can also be directly attached to the elastic bodies 4A to 4C when the elastic bodies 4A to 4C are formed.

  Moreover, although the electronic device switch 1 and the elastic bodies 4A to 4C according to the first to third embodiments have been described for use in the vehicle interior lighting device 10, the electronic device having a touch surface is not limited thereto. Can be used.

DESCRIPTION OF SYMBOLS 1 Electronic device switch 2 Lens 3 Electrode 4A, 4B, 4C Elastic body 41 Electrode side edge part 42 Substrate side edge part 43 Electrode side protrusion part 44 Substrate side protrusion part 5A, 5B, 5C Circuit body 51, 51a-51c Electrode side contact Part 52, 52a-52c Board side contact part 53, 53a-53c Inter-contact connection part 6 Board 7 Housing 10 Car interior lighting device 11 Housing 12 LED
13 Light guide 14 Cover 200 Front window 201 Car interior ceiling

Claims (8)

An electrode protection member having a touch surface exposed to the outside;
An electrode opposite to the side on which the touch surface is formed and facing the touch surface;
An insulating elastic body;
A substrate for controlling an electronic device by a change in capacitance in the electrode;
A circuit body for electrically connecting the electrode and the substrate;
With
The elastic body includes an electrode side protruding portion protruding toward the electrode side at an electrode side end portion facing the electrode, a substrate side facing the electrode side end portion in the first direction and facing the substrate. A substrate side protruding portion protruding toward the substrate side at the end portion is formed;
The circuit body electrically connects an electrode side contact portion formed on the electrode side protruding portion, a substrate side contact portion formed on the substrate side protruding portion, and the electrode side contact portion and the substrate side contact portion. An inter-contact connection portion to be connected to,
An electronic device switch characterized by that. The electronic device switch according to claim 1,
The connection part between the contacts is formed at least on a part of the outer peripheral surface around the first direction of the elastic body.
Electronic device switch. The electronic device switch according to claim 1,
The circuit body is formed on the entire surface of the elastic body.
Electronic device switch. The electronic device switch according to claim 1 or 3,
The elastic body is formed with a through-hole penetrating from the electrode side end portion to the substrate side end portion,
The connection part between the contacts is formed at least in the through hole.
Electronic device switch. The electronic device switch according to claim 4,
The connection part between the contacts is filled in at least the through hole,
Electronic device switch. In the electronic device switch according to any one of claims 1 to 5,
At least one of the electrode side protruding portion and the substrate side protruding portion is formed in plural.
Electronic device switch. The electronic device switch according to claim 2,
The same number of the electrode side protrusions and the substrate side protrusions are formed,
The connection part between the contacts electrically connects the pair of the electrode side contact part and the substrate side contact part,
Electronic device switch. The electrode protection member on which the touch surface exposed to the outside is formed is opposite to the side on which the touch surface is formed and opposite to the touch surface, and the capacitance of the electrode is changed. An insulating elastic body disposed between a substrate for controlling an electronic device,
The elastic body includes an electrode side protruding portion protruding toward the electrode side at an electrode side end portion facing the electrode, a substrate side facing the electrode side end portion in the first direction and facing the substrate. A substrate side protruding portion protruding toward the substrate side at the end portion is formed;
Between the electrode-side contact portion formed on the electrode-side protruding portion, the substrate-side contact portion formed on the substrate-side protruding portion, and the contacts that electrically connect the electrode-side contact portion and the substrate-side contact portion. A circuit body comprising a connection part is formed,
An elastic body characterized by that.

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