JP6700142B2 - Wiring connection structure and capacitance type input device - Google Patents

Description

  The present invention relates to a wiring connection structure used for connecting a sheet-shaped wiring member and a capacitance type input device using the same.

  When connecting FPC (Flexible Printed Circuits) to a wiring pattern of a substrate, an FPC connector mounted on the substrate is usually used (see, for example, FIG. 10 of Patent Document 1).

JP, 2014-206814, A

  However, a connector used for sheet-like wiring such as an FPC has a mechanism for sandwiching and fixing the sheet-like wiring, and has a complicated configuration and a large size. Therefore, when the connector is mounted on the board as a component, there is a disadvantage that a wide space on the board is occupied by the connector. Further, a connector having a mechanically complicated structure has a disadvantage that it is relatively expensive as compared with other parts.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an inexpensive wiring connection structure with a simple configuration, and an electrostatic capacitance input device having the same.

  A wiring connection structure according to a first aspect of the present invention includes a flexible sheet-shaped insulator and wiring provided on the insulator, and at least a part of the wiring is exposed from the insulator. The wiring member, the board, the leaf spring of the conductor mounted on the component mounting surface of the board, and the wiring exposed from the insulator stays in a position pressed by the leaf spring. A holding member that holds at least a part of the substrate. The leaf spring and the holding member are independent members.

  According to this configuration, the leaf spring mounted on the component mounting surface and the holding member that holds the wiring member with respect to the board are independent members and are not integrated. Therefore, the structure is simpler than that of an ordinary connector in which an electrode forming a contact and a wire fixing mechanism are integrated as one member.

  Suitably, the wiring connection structure concerning the said 1st viewpoint is provided with the base part which supports the said board|substrate, and the said holding member is integrally formed with the said base part.

  According to this structure, since the holding member is formed integrally with the base, it is not necessary to separately provide a component for fixing the holding member to the substrate, and thus the structure is simplified. .

  Preferably, the wiring connection structure according to the first aspect includes a reinforcing plate fixed to the insulator. The holding member holds the reinforcing plate with respect to the substrate.

  According to this structure, the reinforcing plate fixed to the insulator is held by the substrate, so that the insulator is stably held by the substrate together with the reinforcing plate.

  Preferably, the holding member is provided so as to face the component mounting surface, a flat surface portion with which one surface of the reinforcing plate abuts, and the standing member is provided upright around the reinforcing plate in the flat surface portion, and the flat surface portion. A first restricting portion that restricts the displacement of the reinforcing plate in the direction along the line, and the displacement of the reinforcing plate in the direction away from the plane portion, which is provided between the reinforcing plate and the component mounting surface. And a second regulation unit that regulates. The reinforcing plate includes an elastically deformable portion that is elastically deformable in a direction away from the plane portion to a position where the regulation of the first regulation portion is released outside the range regulated by the second regulation portion.

  According to this configuration, the positional deviation of the reinforcing plate in the direction along the flat surface portion is restricted in the first restricting portion, and the reinforcing plate in the direction away from the flat surface portion in the second restricting portion. The positional deviation of is regulated. Thereby, the reinforcing plate is stably held at a position facing the component mounting surface. In addition, when the reinforcing plate is attached to a position where both the first restricting portion and the second restricting portion are restricted, the elastically deforming portion elastically deforms in the middle to restrict the first restricting portion. It becomes possible to set it in the released state. Therefore, the work of attaching the reinforcing plate is simplified.

  Preferably, the reinforcing plate includes a fixing portion fixed to the insulator, and a connecting portion connecting the fixing portion and the elastically deforming portion.

  According to this structure, the elastically deformable portion is connected to the fixing portion via the connecting portion, and is not directly fixed to the insulator. Accordingly, even if the elastically deformable portion is elastically deformed, the insulator is not deformed, so that the work of attaching the reinforcing plate is simplified.

  Preferably, a part of the elastically deformable portion is sandwiched between the second restricting portion and the flat surface portion, and the connecting portion is sandwiched between the second restricting portion and the flat surface portion. A hole is formed in at least a part of a region of the flat surface part that is opposed to the second restricting part via a part of the elastically deformable part, by elastically connecting a part of the elastically deformable part and the fixing part. Has been done.

  According to this structure, a part of the elastically deformable portion sandwiched between the second restricting portion and the flat surface portion is elastically connected to the fixing portion via the connecting portion. When another portion of the elastically deformable portion that is not sandwiched between the second restricting portion and the flat surface portion elastically deforms in a direction away from the flat surface portion, elastic deformation occurs at the connecting portion. In this case, a part of the elastically deformable portion sandwiched between the second restricting portion and the component mounting surface is inclined toward the hole. This makes it easier for the elastically deformable portion to deform in the direction away from the flat surface portion, so that the work of attaching the reinforcing plate is simplified.

  Preferably, the insulator is a strip-shaped member, the fixing portion is fixed to an end portion of the strip-shaped member in the longitudinal direction, and the elastically deformable portion extends in an arm shape along the longitudinal direction of the strip-shaped member. The connecting portion connects the end edge of the fixing portion and the end edge of the elastically deforming portion in the longitudinal direction of the strip-shaped member. The reinforcing plate includes two elastically deforming portions arranged side by side with the fixing portion sandwiched therebetween in a direction orthogonal to the longitudinal direction of the strip-shaped member, and two elastically deforming portions respectively connecting the two elastically deforming portions to the fixing portion. The connection part is included.

  According to this structure, the two elastically deformable portions extending in an arm shape along the longitudinal direction of the strip-shaped member are arranged side by side with the fixing portion interposed therebetween in a direction orthogonal to the longitudinal direction of the strip-shaped member. Therefore, the shape of the reinforcing plate becomes compact. Further, since the end edge of the fixed portion and the end edge of the elastically deformable portion in the longitudinal direction of the strip-shaped member are connected by the connecting portion, a direction in which the elastically deformable portion extending like an arm moves away from the flat surface portion. It is possible to cause a large elastic deformation to.

  Preferably, the wiring of the wiring member is a carbon ink layer provided on the insulator.

  According to this configuration, the wiring is formed by printing the carbon ink on the insulator, so that the wiring can be formed in the insulator in a simple process at low cost.

An electrostatic capacitance type input device according to a second aspect of the present invention is integrally formed with the wiring connection structure according to the first aspect and the wiring member, and the electrostatic capacitance changes as an object approaches. A sensor unit including a detection electrode, and an electrostatic capacitance detection circuit that detects the electrostatic capacitance of the detection electrode based on an electric charge accumulated in the detection electrode, wherein the detection electrode is the wiring member. The board is connected to the leaf spring via a wire, and the substrate includes a wire that connects the leaf spring and the capacitance detection circuit.

  According to this structure, since the sensor portion is formed integrally with the wiring member, the structure is simplified.

  According to the present invention, it is possible to provide an electrostatic capacitance type input device having good assembling ability while maintaining detection accuracy of an input operation.

It is a perspective sectional view showing an example of an electrostatic capacity type input device concerning an embodiment of the present invention. It is the figure which extracted and illustrated the sensor part, the wiring member, the reinforcing plate, and the board|substrate in the perspective sectional view shown in FIG. FIG. 6 is an enlarged perspective view showing a state in which a reinforcing plate is held by a holding member. It is the figure which abbreviate|omitted illustration of the wiring member and the reinforcement board in the enlarged perspective view shown in FIG. It is an expansion perspective view which illustrated the front-end|tip part of the wiring member to which the reinforcement board was fixed. It is a figure which shows an example of a leaf spring. 6A is a perspective view and FIG. 6B is a plan view. It is a figure which shows an example of a structure regarding the detection of the electrostatic capacitance in an electrostatic capacitance type input device.

  An electrostatic capacitance input device according to an embodiment of the present invention will be described below with reference to the drawings. The electrostatic capacitance type input device according to the present embodiment is an input device used for an operation panel of various devices such as an operation panel for air conditioning in a vehicle, and can perform an input operation (touch operation, etc.) on an operation surface. Detect. FIG. 1 is a perspective sectional view showing an example of a capacitance type input device according to an embodiment of the present invention.

  In this specification, three directions orthogonal to each other are defined as “X”, “Y”, and “Z”. Further, mutually opposite directions included in the X direction are “X1” and “X2”, and mutually opposite directions included in the Y direction are “Y1” and “Y2”, and mutually opposite directions included in the Z direction. Let the directions be "Z1" and {Z2".

  As shown in FIG. 1, the capacitive input device according to the present embodiment includes an outer shell member 10 having an operation surface 14 on which a user performs a touch operation, a substrate 40 on which electronic components are mounted, It has a base 70 that supports the outer shell member 10 and the substrate 40, respectively. The outer shell member 10 and the substrate 40 are fixed to the base portion 70 by screws or snap-ins.

  In the example of FIG. 1, the outer shell member 10 is located substantially on the Z1 side with respect to the base 70, and the substrate 40 is located on the Z2 side of the base 70. The operation surface 14 of the outer shell member 10 faces the Z1 side and extends in the X direction and the Y direction as a whole. The substrate 40 has a component mounting surface 41 parallel to the XY plane. The base portion 70 has a floor portion 72 that faces the component mounting surface 41 and that is substantially parallel to the XY plane.

  On the operation surface 14 of the outer shell member 10, a plurality of light emitting regions 82 that transmit light from a light emitting element 80, which will be described later, mounted on the substrate 40 are provided. A light guide member 81 having a light transmitting property is disposed between the light emitting element 80 of the substrate 40 and the light emitting region 82 of the outer shell member 10. The light guide member 81 is supported by the support member 71 provided on the base portion 70, and is fixed to the outer shell member 10 and the substrate 40.

  FIG. 2 is a diagram illustrating a main internal member (a sensor unit 24, a wiring member 20, a reinforcing plate 30 and a substrate 40 described later) extracted and illustrated in the perspective sectional view shown in FIG. The electrostatic capacitance input device according to the present embodiment includes a sensor unit 24 whose electrostatic capacitance changes according to the proximity of an object such as a finger, and an electrostatic capacitance detection circuit 90 which detects the electrostatic capacitance. As shown in FIGS. 1 and 2, the sensor unit 24 is arranged on the inner surface of the outer shell member 10 facing the operation surface 14. In addition, this capacitance type input device has a wiring member 20, a reinforcing plate 30, and a holding member as a wiring connection structure according to the present embodiment that electrically connects the sensor unit 24 and the capacitance detection circuit 90. It has 60, a leaf spring 50, and a substrate 40.

  The sensor unit 24 is a sheet-shaped member as shown in FIG. 2, and is arranged along the inner surface of the outer shell member 10 facing the operation surface 14. The sensor section 24 has an insulator 26 such as a flexible thin resin and a plurality of thin film-shaped detection electrodes 25 formed on the surface thereof with a conductor such as silver paste or carbon ink. When an object such as a finger comes into contact with a region on the operation surface 14 facing the detection electrode 25, the capacitance of the detection electrode 25 changes with the contact of the object (proximity of the object via the outer shell member 10). .. The wiring connection structure according to the present embodiment forms a conductive path for transferring the charge accumulated in the detection electrode 25 to the capacitance detection circuit 90 according to the capacitance of the detection electrode 25.

  As shown in FIG. 2, the sensor unit 24 has an opening 27 for transmitting light from the light guide member 81 at a position facing the light emitting region 82 on the operation surface 1. The detection electrode 25 is formed around the opening 27.

  As shown in FIG. 2, a plurality of light emitting elements 80 corresponding to a plurality of light emitting regions 82 on the operation surface 14 are mounted on the component mounting surface 41 of the substrate 40. Each light emitting element 80 is driven by a light emitting element drive circuit (not shown) so as to emit light or turn off according to the detection result of the electrostatic capacitance of the detection electrode 25 provided near the corresponding light emitting area 82.

  The wiring member 20 includes a sheet-shaped insulator 21 made of a flexible resin or the like and a wiring 22 provided on the insulator 21, and is integrally formed with the sensor unit 24. The insulator 21 of the wiring member 20 and the insulator 26 of the sensor portion 24 are integrated as one sheet-like insulator. The wiring 22 of the wiring member 20 and the detection electrode 25 of the sensor portion 24 are formed as thin films of conductors (silver paste, carbon ink, etc.) on the common sheet-shaped insulator.

  As shown in FIGS. 1 and 2, the insulator 21 of the wiring member 20 is a strip-shaped member, and one end of the insulator 21 is connected to the X1 side edge of the sensor unit 24. The holding member 60 holds the other end of the wiring member 20 toward the component mounting surface 41. As shown in FIG. 1, the holding member 60 is formed integrally with the base portion 70. The holding member 60 is erected from the surface of the floor portion 72 of the base portion 70 on the Z2 side toward the component mounting surface 41, and holds the end portion of the strip-shaped wiring member 20 at the tip end portion thereof.

  FIG. 3 is an enlarged perspective view showing a state where the reinforcing plate 30 is held by the holding member 60. FIG. 4 is a diagram in which the wiring member 20 and the reinforcing plate 30 are omitted in the enlarged perspective view shown in FIG. FIG. 5 is an enlarged perspective view illustrating the tip portion of the wiring member 20 to which the reinforcing plate 30 is fixed. 3 to 5 are views in which the Z1 side is viewed from the Z2 side (the lower side is viewed from the upper side in the perspective views of FIGS. 1 and 2).

  As shown in FIG. 5, the wiring member 20 has a plurality of wirings 22 extending along the longitudinal direction. Each wiring 22 has a contact electrode 23 exposed from the insulator 21 at the longitudinal end of the wiring member 20. The contact electrode 23 contacts the leaf spring 50 mounted on the component mounting surface 41 of the substrate 40, and electrically connects the sensor unit 24 and the electrostatic capacitance detection circuit 90. The holding member 60 holds the end portion of the wiring member 20 with respect to the substrate 40 so that the contact electrode 23 of each wiring 22 exposed from the insulator 21 remains at a position where it is pressed by the leaf spring 50.

  As shown in FIG. 5, the reinforcing plate 30 is fixed to the end of the insulator 21 where the contact electrode 23 is exposed. The reinforcing plate 30 is a plate-shaped member formed of an insulating material such as resin, and is thicker than the insulator 21. The holding member 60 holds the reinforcing plate 30 with respect to the substrate 40.

  As shown in FIGS. 3 and 4, the holding member 60 has a flat surface portion 61, a first regulation portion 62, and second regulation portions 64 and 65. The plane portion 61 is provided so as to face the component mounting surface 41 of the substrate 40, and is parallel to the XY plane. One surface of the reinforcing plate 30 contacts the flat surface portion 61.

  The first restricting portion 62 is provided upright around the area of the flat surface portion 61 on which the reinforcing plate 30 contacts, and restricts the displacement of the reinforcing plate 30 in the direction along the flat surface portion 61. In the example of FIGS. 3 and 4, the first restriction portion 62 is formed in a substantially C-shape, and avoids a part of the edge of the reinforcing plate 30 on the X1 side from which the strip-shaped insulator 21 extends. It surrounds you.

  The second restricting portions 64 and 65 are provided between the reinforcing plate 30 and the component mounting surface 41 and restrict the positional displacement of the reinforcing plate 30 in the direction away from the flat surface portion 61. In the example of FIGS. 3 and 4, the second restricting portions 64 and 65 are provided at the tip end of the first restricting portion 62 on the component mounting surface 41 side (Z2 side), respectively. The second restricting portions 64 and 65 project from the tip end portion of the first restricting portion 62 so as to overlap the reinforcing plate 30 in a plan view toward the flat surface portion 61.

  As shown in FIG. 5, the reinforcing plate 30 connects the fixing portion 31 fixed to the insulator 21, the elastic deformation portions 32A and 32B elastically deformable in the Z direction, and the fixing portion 31 and the elastic deformation portion 32A. And a connecting portion 33B that connects the fixing portion 31 and the elastically deforming portion 32B. In the example of FIG. 5, the fixing portion 31 has a substantially rectangular shape, and is fixed to the end portion in the longitudinal direction of the insulator 21 (strip-shaped member) where the contact electrode 23 is exposed. The elastic deformation portions 32A and 32B extend in an arm shape along the longitudinal direction of the insulator 21 (strip-shaped member), and are arranged in the Y direction with the fixing portion 31 interposed therebetween. The connecting portion 33A connects the end edge 34 of the fixing portion 31 and the end edge 35A of the elastically deforming portion 32A in the longitudinal direction of the insulator 21 (strip-shaped member). The connecting portion 33B connects the end edge 34 of the fixing portion 31 and the end edge 35B of the connecting portion 33B in the insulator 21 (strip-shaped member).

  As shown in FIGS. 3 and 5, the end portion 321A of the elastically deformable portion 32A is sandwiched between the second restriction portion 64 and the flat surface portion 61. The connecting portion 33A elastically connects the end portion 321A and the fixed portion 31. The end portion 321B of the elastically deformable portion 32B is sandwiched between the second restricting portion 65 and the flat surface portion 61. The connecting portion 33B elastically connects the end portion 321B and the fixed portion 31.

  As shown in FIG. 4, in the flat surface portion 61, a hole 66 is formed in a region facing the second restriction portion 64 via the end portion 321A of the elastic deformation portion 32A, and through the end portion 321B of the elastic deformation portion 32B. A hole 67 is formed in a region facing the second restriction portion 65.

  As shown in FIG. 5, the reinforcing plate 30 has a recess 36 formed substantially at the center of the end edge 34 of the fixing portion 31 in the direction in which the elastically deforming portions 32A and 32B are arranged (Y direction). The concave portion 36 fits with the convex portion 63 formed on the first restriction portion 62.

  When attaching the reinforcing plate 30 to the holding member 60, first, the end portion 321A of the elastically deformable portion 32A is sandwiched between the second restricting portion 64 and the flat surface portion 61, and the end portion 321B of the elastically deformable portion 32B is moved to the second end. The reinforcing plate 30 is inserted from the X1 side in the X2 direction so as to be sandwiched between the restriction portion 65 and the flat surface portion 61. At this time, the reinforcing plate 30 is slightly inclined in the Z1 direction so that part of the end portions 321A and 321B fall into the holes 66 and 67 of the flat portion 61. The elastically deformable portions 32A and 32B ride on the Z2 side end of the first restriction portion 62 and elastically deform in the Z2 direction. When the reinforcing plate 30 is further inserted in the X direction, the concave portion 36 of the reinforcing plate 30 fits with the convex portion 63 of the first restricting portion 62, and the position of the reinforcing plate 30 in the Y direction is determined. Further, the elastically deforming portions 32A and 32B are disengaged from the Z2 side end portion of the first restricting portion 62, the elastic deformation is returned to the original state, and the entire state becomes flat. As a result, the reinforcing plate 30 is restricted from being displaced in a direction parallel to the flat surface portion 61 by the first restriction portion 62, and is also restricted from being displaced in a direction away from the flat surface portion 61 by the second restriction portions 64 and 65. It will be in the state of being.

FIG. 6 is a diagram showing an example of the leaf spring 50. 6A is a perspective view and FIG. 6B is a plan view.
The leaf spring 50 is an elastic member formed by bending a plate-shaped metal body, and includes strip-shaped plate members 52 and 53 and a rectangular plate member 51 to which one end of each of the strip-shaped plate members 52 and 53 is connected. Have. The strip-shaped plate members 52 and 53 are spirally bent in the same direction around a center line L perpendicular to the XY plane. The rectangular plate member 51 has a substantially square shape when seen in a plan view from the Z direction. The connecting portions between the strip-shaped plate members 52 and 53 and the rectangular plate member 51 are located in positions symmetrical with respect to the center (center line L) of the square, and the opposite corners of the square from the apexes of the diagonal of the square. It extends along the side. As shown in FIG. 5A, the strip-shaped plate members 52 and 53 move away from the rectangular plate member 51 in the Z1 direction from one end connected to the rectangular plate member 51 to the other end, and spiral rotation Has a smaller diameter. A contact portion 55 that comes into contact with the contact electrode 23 of the wiring member 20 is provided at the other end of the strip plate member 52 that is not connected to the rectangular plate member 51. A protrusion 56 protruding in the Z1 direction is provided at a position of the contact portion 55 corresponding to the center of rotation of the spiral. The other end of the strip plate member 53 is located on the Z2 side with respect to the contact portion 55. The leaf spring 50 generates an elastic force that presses the contact electrode 23 in contact with the contact portion 55 in the Z1 direction.

  FIG. 7 is a diagram showing an example of a configuration related to detection of capacitance in the capacitance type input device according to the present embodiment. The capacitance type input device according to the present embodiment detects the capacitance associated with the approach of the object 100 (finger or the like) to the operation surface 14 based on the charges accumulated in the detection electrodes 25 of the sensor unit 24. It has a capacitance detection circuit 90. For example, the electrostatic capacitance detection circuit 90 periodically applies a pulse voltage having a constant amplitude to the detection electrode 25, and the pulse voltage detects the electric charge accumulated between the detection electrode 25 and the reference potential (ground). To do. The electric charge detected by the electrostatic capacitance detection circuit 90 is almost proportional to the electrostatic capacitance between the detection electrode 25 and the object 100 that is close to the operation surface 14. The electrostatic capacitance detection circuit 90 includes, for example, an analog-digital converter, and outputs detection data Dout having a predetermined bit length that indicates the magnitude of the detected charge. The electrostatic capacitance detection circuit 90 is composed of one or a plurality of electronic components, and is mounted on the substrate 40 or another substrate.

  As described above, in the wiring connection structure according to the present embodiment, the contact electrode 23 of the wiring 22 exposed from the flexible sheet-shaped insulator 21 is pressed by the leaf spring 50 mounted on the substrate 40. A holding member 60 that holds the wiring member 20 with respect to the substrate 40 is provided so that the wiring member 20 stays at a certain position. The holding member 60 is a member independent of the leaf spring 50, and the both are not integrated. In a normal connector, the electrode forming the contact and the mechanism for fixing the wiring are integrated as one member, but in the wiring connection structure according to the present embodiment, the leaf spring 50 and the holding member 60 are integrated. The configuration for doing so is omitted. Therefore, the structure is simplified and the size can be reduced as compared with the case of using a normal connector. In addition, the simple structure allows the manufacturing cost to be lower than that of an ordinary connector.

  According to the wiring connection structure according to the present embodiment, the base portion 70 that supports the substrate 40 and the holding member 60 are integrally formed, so that a component for fixing the holding member 60 to the substrate 40 is separately provided. Since it does not need to be provided, the configuration is further simplified.

  According to the wiring connection structure of the present embodiment, the reinforcing plate 30 is fixed to the insulator 21, and the reinforcing plate 30 is held by the holding member 60 with respect to the substrate 40. Therefore, the flexible insulator 21 can be stably held with respect to the substrate 40 together with the reinforcing plate 30.

  According to the wiring connection structure according to the present embodiment, the positional deviation of the reinforcing plate 30 in the direction along the flat surface portion 61 is restricted in the first restriction portion 62, and the flat surface portion 61 in the second restriction portions 64 and 65. The positional deviation of the reinforcing plate 30 in the direction away from is restricted. As a result, the reinforcing plate 30 can be stably held at a position facing the component mounting surface 41.

  According to the wiring connection structure according to the present embodiment, when the reinforcing plate 30 is attached to a position where both the first restricting portion 62 and the second restricting portions 64 and 65 are restricted, the elastically deformable portions 32A and 32B are in the middle of the process. By elastically deforming each of them, it is possible to bring the restriction of the first restriction portion 62 into a released state. Therefore, the work of attaching the reinforcing plate 30 to the holding member 60 is simplified.

  According to the wiring connection structure of the present embodiment, the elastically deformable portions 32A and 32B are connected to the fixing portion 31 via the connecting portions 33A and 33B, and are not directly fixed to the insulator 21. As a result, the insulator 21 does not deform even when the elastically deformable portions 32A and 32B are elastically deformed, so that the work of attaching the reinforcing plate 30 to the holding member 60 is simplified.

  According to the wiring connection structure according to the present embodiment, the end portion 321A of the elastically deformable portion 32A sandwiched between the second restricting portion 64 and the flat surface portion 61 is elastically connected to the fixed portion 31 via the connecting portion 33A. The end portion 321B of the elastically deformable portion 32B sandwiched between the second restricting portion 65 and the flat surface portion 61 is elastically connected to the fixed portion 31 via the connecting portion 33B. Therefore, when the other portions of the elastically deformable portions 32A and 32B that are not sandwiched between the second restricting portions 64 and 65 and the flat surface portion 61 are elastically deformed in the direction away from the flat surface portion 61, they are elastically deformed at the connecting portions 33A and 33B, respectively. Deformation occurs. In this case, the end portion 321A of the elastically deformable portion 32A is inclined toward the hole 66 of the flat surface portion 61, and the end portion 321B of the elastically deformable portion 32B is inclined toward the hole 67 of the flat surface portion 61. As a result, the elastically deformable portions 32A and 32B are more likely to be deformed in the direction away from the flat surface portion 61, including the amount of deformation in the coupling portions 33A and 33B. Therefore, the work of attaching the reinforcing plate 30 to the holding member 60 is further simplified.

  According to the wiring connection structure according to the present embodiment, the two elastically deformable portions 32A and 32B extending in an arm shape along the longitudinal direction of the insulator 21 (strip-shaped member) have the longitudinal direction of the insulator 21 (strip-shaped member). The fixing portions 31 are arranged side by side in a direction orthogonal to the direction. Therefore, the shape of the reinforcing plate 30 can be made compact.

  According to the wiring connection structure according to the present embodiment, the end edge 34 of the fixed portion 31 and the end edge 35A of the elastically deformable portion 32A are connected by the connecting portion 33A, and the end edge 34 of the fixed portion 31 and the elastically deformable portion 32B are connected. The end edge 35B is connected by the connecting portion 33B. Therefore, in the elastically deforming portions 32A and 32B extending in the arm shape, a large elastic deformation in a direction away from the flat surface portion 61 can be generated.

  According to the wiring connection structure according to the present embodiment, the wiring 22 is formed by printing the carbon ink on the insulator 21, so that the wiring 22 in the insulator 21 can be formed in a simple process at low cost. Becomes

  According to the capacitance type input device of this embodiment, since the sensor section 24 is integrally formed with the wiring member 20 in the above-described wiring connection structure, a connector or the like is used for connecting the sensor section 24 and the wiring member 20. It becomes unnecessary and the configuration becomes simple.

  The present invention is not limited to the above embodiments. That is, a person skilled in the art may make various changes, combinations, sub-combinations, and substitutions with respect to the constituent elements of the above-described embodiments within the technical scope of the present invention or the equivalent scope thereof.

  For example, in the above-described embodiment, the reinforcing plate 30 is provided with the two elastically deformable portions 32A and 32B, but in the present invention, the elastically deformable portions may be one, or three or more. Further, in the present invention, one elastically deformable portion may be pressed by a plurality of second restricting portions, or a plurality of elastically deforming portions may be pressed by a second restricting portion. The second restricting portion may press the fixed portion in addition to pressing the elastically deformable portion.

DESCRIPTION OF SYMBOLS 10... Outer shell member, 14... Operation surface, 20... Wiring member, 21... Insulator, 22... Wiring, 23... Contact electrode, 24... Sensor part, 25... Detection electrode, 26... Insulator, 27... Opening part, 30... Reinforcing plate, 31... Fixing part, 32A, 32B... Elastically deforming part, 321A, 321... End part of elastically deforming part, 33A, 33B... Connecting part, 34... End edge, 35A, 35B... End edge, 36... Recesses, 40... Substrate, 41... Component mounting surface, 50... Leaf spring, 51... Bottom part, 52... Plate-shaped metal body, 53... Plate-shaped metal body, 55... Contact part, 56... Projection, 70... Base part, 71... Support member, 72... Floor portion, 60... Holding member, 61... Planar portion, 62... First regulating portion, 63... Convex portion, 64, 65... Second regulating portion, 66, 67... Hole, 80... Light emitting element, 81... Light guide member, 82... Light emitting area, 90... Capacitance detection circuit

Claims (9)

A flexible sheet-shaped insulator, and a wiring member including wiring provided in the insulator, wherein at least a part of the wiring is exposed from the insulator,
Board,
A conductor leaf spring mounted on the component mounting surface of the substrate,
A holding member that holds at least a part of the wiring member with respect to the substrate so that the wiring exposed from the insulator stays at a position pressed by the leaf spring ,
A base supporting the substrate ,
Ri member der which said leaf spring and said retaining member is independent of each other,
The holding member is formed integrally with the base,
Wiring connection structure. A reinforcing plate fixed to the insulator,
The holding member holds the reinforcing plate with respect to the substrate,
The wiring connection structure according to claim 1 . The holding member is
A flat surface portion that is provided so as to face the component mounting surface, and one surface of the reinforcing plate abuts,
A first restricting portion that is provided upright around the reinforcing plate in the flat portion, and that restricts the displacement of the reinforcing plate in the direction along the flat portion;
A second restricting portion that is provided between the reinforcing plate and the component mounting surface, and that restricts positional displacement of the reinforcing plate in a direction away from the flat surface portion,
The reinforcing plate includes an elastically deformable portion that is elastically deformable in a direction away from the flat surface portion to a position where the regulation of the first regulation portion is released outside the range regulated by the second regulation portion.
The wiring connection structure according to claim 2 . A flexible sheet-shaped insulator, and a wiring member including wiring provided on the insulator, wherein at least a part of the wiring is exposed from the insulator,
Board,
A conductor leaf spring mounted on the component mounting surface of the substrate,
A holding member that holds at least a part of the wiring member with respect to the substrate so that the wiring exposed from the insulator remains at a position where it is pressed by the leaf spring ,
A reinforcing plate fixed to the insulator ,
Ri member der which said leaf spring and said retaining member is independent of each other,
The holding member holds the reinforcing plate with respect to the substrate,
The holding member is
A flat surface portion that is provided so as to face the component mounting surface, and one surface of the reinforcing plate abuts,
A first restricting portion that is provided upright around the reinforcing plate in the flat surface part and that restricts the displacement of the reinforcing plate in the direction along the flat surface part;
A second restricting portion that is provided between the reinforcing plate and the component mounting surface, and that restricts positional displacement of the reinforcing plate in a direction away from the flat surface portion,
The reinforcing plate includes an elastically deformable portion that is elastically deformable in a direction away from the flat surface portion to a position where the regulation of the first regulation portion is released outside the range regulated by the second regulation portion.
Wiring connection structure. The reinforcing plate is
A fixing portion fixed to the insulator,
A connecting portion that connects the fixing portion and the elastically deforming portion,
The wiring connection structure according to claim 3 or 4. Part of the elastically deformable portion is sandwiched between the second restricting portion and the plane portion,
The connecting part elastically connects a part of the elastically deformable part sandwiched between the second restricting part and the flat part and the fixing part,
In the flat surface portion, a hole is formed in at least a part of a region facing the second restriction portion via a part of the elastically deformable portion,
The wiring connection structure according to claim 5. The insulator is a strip member,
The fixing portion is fixed to a longitudinal end portion of the strip-shaped member,
The elastically deformable portion extends in an arm shape along the longitudinal direction of the belt-shaped member,
The connecting portion connects an end edge of the fixing portion and an end edge of the elastically deforming portion in the longitudinal direction of the strip-shaped member,
The reinforcing plate is
Two elastically deforming portions arranged with the fixing portion interposed therebetween in a direction orthogonal to the longitudinal direction of the belt-shaped member;
The two elastically deformable parts, and the two connecting parts that respectively connect the fixed part to the fixed part,
The wiring connection structure according to claim 5. The wiring of the wiring member is a carbon ink layer provided on the insulator,
The wiring connection structure according to claim 1. A wiring connection structure according to any one of claims 1 to 8,
A sensor unit that is formed integrally with the wiring member and that includes a detection electrode whose capacitance changes with the proximity of an object,
And a capacitance detection circuit that detects the capacitance of the detection electrode based on the charges accumulated in the detection electrode,
The detection electrode is connected to the leaf spring via the wiring of the wiring member,
The substrate includes wiring that connects the leaf spring and the capacitance detection circuit,
Capacitive input device.

Images