JP6344852B2 - Rotating operation type electric parts - Google Patents

Description

  The present invention relates to a rotary operation type electric component capable of detecting that an operator's finger or the like has touched an operation knob.

  Recently, it has been controlled to detect that an operator is about to operate and prepare a screen display or the like in advance. In addition, for example, assisting the blind operation (displaying which operation knob is being put on) has been performed so that the driver of the vehicle can easily operate the audio and the like.

  Patent Document 1 describes a switch device in which a capacitance sensor is embedded in a rotary switch. FIG. 14 is a block diagram showing the switch device 100 of Patent Document 1. As shown in FIG. When the rotary switch 102 is touched with fingers, the detection signal of the capacitance IC 110 changes, and the operability of the switch can be enhanced by the output signal.

  However, no specific structure has been shown for the electrical connection between the capacitance sensor 103 and the capacitance IC 110. That is, it is necessary to incorporate a conduction path that ensures electrical conduction without limiting the rotation of the rotary switch 102.

  Japanese Patent Application Laid-Open No. 2004-228561 describes that in a rotary operation type electrical component with a touch sensor, a conduction path of the touch sensor is performed by a conductive metal rotary shaft of an operation unit and a fixed terminal elastically contacting the shaft. FIG. 15 is a cross-sectional view showing a rotary operation type electric component 200 with a touch sensor of Patent Document 2. As shown in FIG. FIG. 16 is an explanatory diagram illustrating a contact state between the touch line terminal 212 and the operation shaft 211 in the rotary operation type electric component 200 with a touch sensor in FIG. 15.

  The operation of the touch sensor in the rotary operation type electric component 200 with the touch sensor is ensured by the contact piece 212 a in which the conductive path between the knob 218 and the touch line terminal 212 is pressed against the peripheral surface of the operation shaft 211. If this specific structure is used, a conduction path can be formed without any restriction on the rotation of the operation shaft, and a touch sensor signal can be transmitted.

JP 2008-33408 A JP-A-8-329790

  However, the rotary operation type electric component sometimes requires a composite electric component in which a hollow or cylindrical operation shaft is used and another component such as an LED is added to the hollow portion. In this case, it has been difficult to incorporate a structure that maintains a state in which the contact piece is strongly pressed against the side surface of the cylindrical operation shaft without increasing the outer shape of the rotary operation type electric component. For this reason, in a structure using a hollow operation shaft and a relatively small rotary operation type electric component, the function of detecting that a detection target such as an operator's finger has touched becomes unstable. was there.

  The present invention solves the above-described problems, and provides a rotary operation type electric component that can stably detect that a detection target object has been touched while maintaining a relatively small size without increasing the outer shape. The purpose is to do.

The present invention includes a rotation operation unit having a sensor electrode unit for measuring capacitance generated between the object to be detected, a rotation detection unit that outputs an electrical signal along with the rotation of the rotation operation unit, A rotary operation type electric component comprising a plurality of rotation signal terminals for transmitting an electric signal of the rotation detection unit; and a conductive cover member disposed in an electrically insulated manner from the plurality of rotation signal terminals; The cover member has an external contact that can be electrically connected, and has an annular portion that extends along a plane that intersects with the rotation axis of the rotation operation unit. A plurality of children are arranged at intervals in the circumferential direction of the annular portion, and are in elastic contact with at least one of the annular portion or the sensor electrode portion to conduct between the cover member and the sensor electrode portion. What you are doing And features.

According to this configuration, it is possible to form a conduction path of the sensor electrode unit that measures the capacitance generated between the object to be detected through the cover member while maintaining a relatively small size without increasing the outer shape. In addition, by having a plurality of contacts, it is possible to detect that the detection object is touched reliably and stably.

  Further, in the rotary operation type electrical component of the present invention, the rotary operation part is characterized in that an insulating material is integrally disposed so as to cover an upper side of the sensor electrode part.

  According to this configuration, the operator's finger that is the detection target does not directly touch the sensor electrode unit, so noise due to static electricity is reduced.

  Further, in the rotary operation type electric component of the present invention, the rotation detection unit includes a substantially cylindrical fixing member having a flange portion on which fixed electrodes connected to the plurality of rotation signal terminals are disposed, and the fixed electrode. A substantially cylindrical movable member having a slider disposed so as to be able to contact and separate, and the movable member is supported by the fixed member so as to be rotatable integrally with the rotation operation unit. Features.

  According to this configuration, it is easy to add another part to the hollow portion, and the operation of the rotation detection unit is stable.

  According to the present invention, since the conductive elastic contact is in elastic contact with at least one of the annular portion of the cover member or the sensor electrode portion to conduct between the cover member and the sensor electrode portion. Thus, a conduction path of the sensor electrode unit can be formed. Therefore, it is possible to provide a rotary operation type electrical component that can stably detect that the detection target object has been touched while maintaining a relatively small size without increasing the outer shape.

It is a perspective view which shows the rotary operation type electrical component of 1st Embodiment of this invention. It is a disassembled perspective view which shows the rotary operation type electric component of 1st Embodiment. It is a front view which shows the rotary operation type electrical component of 1st Embodiment. It is a top view which shows the rotary operation type electrical component of 1st Embodiment. It is sectional drawing cut | disconnected by the VV line | wire of FIG. It is sectional drawing cut | disconnected by the VI-VI line of FIG. It is a top view which shows the fixing member to which the some rotation signal terminal was attached. It is a perspective view which shows the rotary operation type electrical component of 2nd Embodiment of this invention. It is a disassembled perspective view which shows the rotary operation type electrical component of 2nd Embodiment. It is a front view which shows the rotary operation type electrical component of 2nd Embodiment. It is a top view which shows the rotation operation type electric component of 2nd Embodiment. It is sectional drawing cut | disconnected by the XII-XII line | wire of FIG. It is sectional drawing cut | disconnected by the XIII-XIII line | wire of FIG. It is a block diagram which shows the conventional switch apparatus. It is sectional drawing which shows the conventional rotary operation type electric component with a touch sensor. It is explanatory drawing which shows the contact state of the touch line terminal of FIG. 15, and an operating shaft.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. For easy understanding, the dimensions of the drawings are appropriately changed.

[First Embodiment]
FIG. 1 is a perspective view showing a rotary operation type electric component 1 according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view showing the rotary operation type electric component 1 of the first embodiment. FIG. 3 is a front view showing the rotary operation type electrical component 1 of the first embodiment. FIG. 4 is a plan view showing the rotary operation type electrical component 1 of the first embodiment. FIG. 5 is a cross-sectional view taken along line VV in FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. FIG. 7 is a plan view showing the fixing member 12 to which the plurality of rotation signal terminals 11 are attached.

  The rotational operation type electrical component 1 of the present embodiment is a composite electrical component in which a touch sensor is added to the rotational operation unit 21 attached to the rotation detection unit 10. The rotation detection unit 10 is covered with an operation knob 25 of the rotation operation unit 21, and other members are almost hidden as viewed from the operator side as shown in FIG. In this specification, for the purpose of explanation, the Z1 side in FIG.

  As shown in FIG. 2, the rotation detection unit 10 has a substantially cylindrical fixing member 12 having a flange 12 a and a substantially cylindrical shape that is supported so as to be able to rotate by sliding on the cylindrical surface of the fixing member 12. The movable member 14 is provided. The fixed member 12 and the movable member 14 are formed by molding a synthetic resin that is an insulating material.

  As shown in FIGS. 3 and 5, a plurality of metallic rotation signal terminals 11 are attached to the flange portion 12 a of the fixing member 12 so as to protrude downward. The plurality of rotation signal terminals 11 are connected to a plurality of fixed electrodes 11a arranged so as to be exposed on the upper surface side of the flange portion 12a. The plurality of fixed electrodes 11a are divided and arranged along the circumferential direction of the upper surface of the flange portion 12a, and openings 11b provided at equal intervals are formed (see FIG. 7).

  On the other hand, as shown in FIG. 2 and FIGS. 5 to 6, the movable member 14 has an operation feeling generating portion 14 a that is disposed to face the fixed electrode 11 a on the upper surface side of the flange portion 12 a. A metal movable electrode 13 is disposed on the lower surface of the operation feeling generator 14 a so as to rotate integrally with the movable member 14. The movable electrode 13 includes a plurality of sliders 13 a formed in a leaf spring shape corresponding to the plurality of rotation signal terminals 11. Further, irregularities are formed along the circumferential direction on the upper surface side of the operation feeling generating portion 14a. The spring 15 is arranged so as to be partly elastically contacted with the unevenness of the operation feeling generating portion 14a, and when the movable member 14 rotates, the spring 15 bends corresponding to the unevenness to obtain an operation feeling. .

  The movable electrode 13 rotates together with the upper movable member 14, and the slider 13a is in sliding contact with the lower fixed electrode 11a. At this time, when the slider 13a slides in the opening 11b provided in the fixed electrode 11a, the fixed electrode 11a and the slider 13a are not electrically connected. When the movable member 14 is rotated by a predetermined angle from this position, the slider 13a is electrically connected to the fixed electrode 11a, so that the fixed electrode 11a and the slider 13a are repeatedly electrically connected and separated. . In the rotary operation type electrical component 1 of the present embodiment, there are three fixed electrodes 11 a and three sliders 13 a connected to the rotation signal terminal 11. When two of the three sliders 13a are electrically connected to the fixed electrode 11a, the corresponding rotation signal terminals 11 are electrically connected. The rotation detection signal obtained in this way can be used for operation of a circuit unit (not shown).

  A metal cover member 40 is disposed so as to maintain the fixed member 12, the movable member 14, and the spring 15 in a desired state. The cover member 40 includes an annular portion 40a above the flange portion 12a of the fixing member 12, and includes a locking piece 40b and an external connector 40c that are bent downward from the outer peripheral position of the annular portion 40a. The locking piece 40b is further bent inward on the lower surface side of the flange portion 12a. The operation feel generating portion 14a of the movable member 14 and the spring 15 are accommodated between the flange portion 12a and the annular portion 40a, and the spring 15 Is elastically contacted with the annular portion 40a and the irregularities of the operation feeling generating portion 14a. As shown in FIGS. 3 and 6, the external connector 40c of the cover member 40 is formed so as to protrude further downward from the lower surface of the flange 12a, and can be fixed to a mounting hole provided in a substrate (not shown). It is like that.

  In the rotary operation type electrical component 1 of the present embodiment, the rotary operation unit 21 is attached to the movable member 14 so as to cover the rotation detection unit 10 and the cover member 40.

  As shown in FIG. 2, the rotation operation unit 21 includes an operation knob 25 and a sensor electrode unit 51 for detecting capacitance. The sensor electrode portion 51 is formed of a metal material, and is fixed so as to rotate integrally with the movable member 14 by engaging with a groove portion 14 b provided on the outer circumferential surface of the movable member 14. Further, the rotary operation unit 21 is integrally provided with an operation knob 25 formed of an insulating material so as to cover the upper side of the sensor electrode unit 51. The rotation shaft 21 a of the rotation operation unit 21 coincides with the rotation center of the movable member 14. In this embodiment, the operation knob 25 is formed by molding a synthetic resin that is an insulating material. In addition, it is not limited to a synthetic resin, You may use another insulating material.

  On the other hand, a metal conductive member 30 is disposed below the sensor electrode portion 51 so as to rotate integrally. The conducting member 30 is in electrical contact with the upper sensor electrode portion 51 and includes a plurality of elastic contacts 30a formed in a leaf spring shape. In this embodiment, as shown in FIG. 2, the three elastic contacts 30a are arranged at intervals in the circumferential direction of the annular portion 40a. As shown in FIGS. 5 and 6, the elastic contact 30 a elastically contacts the lower annular portion 40 a and is electrically connected to the annular portion 40 a, thereby electrically connecting the cover member 40 and the sensor electrode portion 51. .

  When the operator operates the operation knob 25 to rotate, the movable member 14 is integrally rotated, and accordingly, the rotation detection unit 10 can obtain an electrical contact / separation signal between the plurality of rotation signal terminals 11. Further, when the operator touches the operation knob 25, the capacitance value measured by the sensor electrode unit 51 changes. The change in the capacitance value obtained in this way can be used for the operation of a circuit unit (not shown). In addition, although the sensor electrode part 51 of this embodiment has a notch, since an opening width is small compared with the magnitude | size of an operator's finger | toe etc., it does not affect the measurement of an electrostatic capacitance.

  The rotary operation type electrical component 1 according to the present embodiment includes a sensor electrode portion 51 and a conductive member 30 including a plurality of elastic contacts 30a. The cover member 40 includes an external connector 40 c that can be electrically connected, and an annular portion 40 a that extends along a plane that intersects the rotation shaft 21 a of the rotation operation unit 21. Furthermore, the conducting member 30 abuts on the lower side of the sensor electrode portion 51, and the elastic contact 30a elastically contacts the upper surface of the annular portion 40a to conduct between the cover member 40 and the sensor electrode portion 51. It is characterized by being.

  The rotary operation type electrical component 1 of the present embodiment has a structure in which the elastic contact 30a is brought into contact in the vertical direction. The stability of the pressure contact is that the cover member 40 is fixed by bending the locking piece 40 b so that the cover member 40 does not float or tilt with respect to the fixed member 12, and the sensor electrode 51 is connected to the cylinder of the movable member 14. This is ensured by engaging and fixing the groove portion 14 b provided on the outer peripheral surface so that the sensor electrode portion 51 does not separate from the cover member 40. Compared to the present embodiment, when the elastic contact is strongly pressed from the outer peripheral side to the rotatable cylindrical side surface of the sensor electrode part, the size is increased in the lateral direction (outer peripheral direction). In the present embodiment, the elastic contact 30a can be stably brought into contact with a relatively small size without increasing the size of the outer shape. Furthermore, it can be made to contact reliably by having the some elastic contactor 30a.

  In the rotary operation unit 21 of the rotary operation type electrical component 1 of the present embodiment, an operation knob 25 is integrally disposed so as to cover the upper side of the sensor electrode unit 51. As a result, as shown in FIG. 4, members other than the operation knob 25 formed of an insulating material are hidden as viewed from the operator side. Therefore, the operator's finger, which is the detection target, does not directly touch the sensor electrode unit 51, and noise due to static electricity from the operator is reduced.

  The cover member 40 of the rotary operation type electrical component 1 of the present embodiment includes an external connector 40c that can be electrically connected, and an annular portion that extends along a plane that intersects the rotary shaft 21a of the rotary operation unit 21. 40a. Further, the elastic contact 30a is elastically contacted with the upper surface of the annular portion 40a to conduct between the cover member 40 and the sensor electrode portion 51. It is possible to form a conduction path of the sensor electrode unit 51 that measures the capacitance generated between the object to be detected via the cover member 40.

  Hereinafter, the effect by having set it as this embodiment is demonstrated.

  The rotary operation type electrical component 1 of the present embodiment has a rotary operation unit 21 having a sensor electrode unit 51 for measuring the capacitance generated between the rotary operation type electrical component 1 and a detection target, and an electrical signal is output along with the rotation. A rotation detection unit 10 and a plurality of rotation signal terminals 11 that transmit electrical signals are provided. Furthermore, it has the electroconductive cover member 40 and the elastic contact 30a which were electrically insulated and arrange | positioned with the some rotation signal terminal 11. FIG. The cover member 40 includes an external connector 40 c that can be electrically connected, and an annular portion 40 a that extends along a plane that intersects the rotation shaft 21 a of the rotation operation unit 21. The elastic contact 30 a is in elastic contact with the annular portion 40 a and conducts between the cover member 40 and the sensor electrode portion 51.

  According to this configuration, the sensor electrode unit that measures the capacitance generated between the rotationally-operated electric component 1 and the detection target via the cover member 40 while maintaining a relatively small size without increasing the size of the outer shape. 51 conduction paths can be formed. Therefore, it is possible to detect that the detection target object is touched stably.

  Moreover, the elastic contactor 30a consists of multiple, and is arrange | positioned at intervals in the circumferential direction of the annular part 40a. By having the plurality of elastic contacts 30a, it is possible to ensure contact. In the present embodiment, since there are three elastic contacts 30a, the contact is stable even when a force that tilts the operation knob 25 is applied. Note that the number of the elastic contacts 30a may be further increased.

  The rotation operation unit 21 is integrally provided with an operation knob 25 formed of an insulating material so as to cover the upper side of the sensor electrode unit 51. According to this configuration, the rotary operation type electric component 1 does not directly touch the sensor electrode portion 51 with the finger of the operator who is the detection target, so that noise due to static electricity is reduced.

  Further, the rotation detection unit 10 is arranged so as to be able to come into contact with and separate from the fixed electrode 11a and a substantially cylindrical fixing member 12 having a flange 12a on which fixed electrodes 11a connected to a plurality of rotation signal terminals 11 are arranged. A substantially cylindrical movable member 14 having a slider 13a. The movable member 14 is supported by the fixed member 12 so as to be rotatable integrally with the rotation operation unit 21. According to this configuration, in the rotary operation type electrical component 1, it is easy to add another component to the hollow portion, and the operation of the rotation detection unit 10 is stable.

[Second Embodiment]
FIG. 8 is a perspective view showing the rotary operation type electric component 2 according to the second embodiment of the present invention. FIG. 9 is an exploded perspective view showing the rotary operation type electric component 2 of the second embodiment. FIG. 10 is a front view showing the rotary operation type electrical component 2 of the second embodiment. FIG. 11 is a plan view showing the rotary operation type electric component 2 according to the second embodiment. 12 is a cross-sectional view taken along line XII-XII in FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG.

  As shown in FIG. 9, the rotary operation type electrical component 2 according to the second embodiment has an illumination unit 60 disposed inside a hollow rotation detection unit 10, and a touch sensor is provided on the rotation operation unit 22 attached to the rotation detection unit 10. It is an added composite electrical component. Note that the rotary operation type electric component 2 of the second embodiment includes a rotation operation unit 22 in place of the rotation operation unit 21 of the rotation operation type electric component 1 of the first embodiment, and further includes an illumination unit 60. Is the same as that of the first embodiment, and the same reference numerals are used and description thereof is omitted.

  In the rotary operation type electrical component 2 of the present embodiment, the rotary operation unit 22 is attached to the movable member 14 so as to cover the fixed member 12 and the cover member 40. Further, in the hollow portion of the substantially cylindrical fixing member 12, the illumination unit 60 is attached to a substrate (not shown). An auxiliary member (not shown) is arranged in the hollow portion of the fixing member 12 along with the arrangement of the illumination unit 60, but is omitted in this embodiment.

  As illustrated in FIG. 9, the rotation operation unit 22 includes an operation knob 26 and a sensor electrode unit 52 for detecting capacitance. The sensor electrode portion 52 is formed of a metal material, and is fixed so as to rotate integrally with the movable member 14 by engaging with a groove portion 14 b provided on the outer circumferential surface of the movable member 14. Further, the rotary operation unit 22 is integrally provided with an operation knob 26 formed of an insulating material so as to cover the upper side of the sensor electrode unit 52. The rotation shaft 22 a of the rotation operation unit 22 coincides with the rotation center of the movable member 14. In the present embodiment, the operation knob 26 is formed by molding a synthetic resin, but other insulating materials may be used. The operation knob 26 and the sensor electrode part 52 have a through-hole 22b centered on the rotation shaft 22a, and the illumination part 60 can be exposed.

  The illumination unit 60 includes a light emitting element such as an LED that is electrically controlled to emit light, and can emit light upward. For example, a mask member (not shown) is arranged so as to be inscribed in the through hole 22b of the rotation operation unit 22, and characters and figures formed on the mask member are illuminated. Further, the emission color can be changed depending on the operation state.

  On the other hand, a metal conductive member 30 is disposed below the sensor electrode portion 52 so as to rotate integrally. The conducting member 30 is in electrical contact with the upper sensor electrode portion 52 and includes a plurality of elastic contacts 30a formed in a leaf spring shape. In the present embodiment, as shown in FIG. 9, three elastic contacts 30a are arranged at intervals in the circumferential direction of the annular portion 40a. As shown in FIGS. 12 and 13, the elastic contactor 30 a is in elastic contact with the lower annular portion 40 a and is electrically connected to the annular portion 40 a, thereby electrically connecting the cover member 40 and the sensor electrode portion 52. .

  When the operator rotates the operation knob 26, the movable member 14 rotates integrally, and accordingly, the rotation detection unit 10 can obtain electrical contact / separation signals between the plurality of rotation signal terminals 11. Further, when the operator touches the operation knob 26, the capacitance value measured by the sensor electrode unit 52 changes. The change in the capacitance value obtained in this way can be used for the operation of a circuit unit (not shown). In addition, the sensor electrode part 52 of this embodiment has the through-hole 22b and a notch. When the through hole 22b and the notch are openings smaller than the size of the operator's finger or the like, the measurement of the capacitance is not affected. On the other hand, by setting the through hole 22b to an opening that is equal to or larger than the size of the operator's finger or the like, the change in the capacitance value is set to be small when the operator's finger is on the through hole 22b. Is possible.

  The rotary operation type electrical component 2 of the present embodiment includes a sensor electrode portion 52 and a conductive member 30 including a plurality of elastic contacts 30a. The cover member 40 includes an external connector 40 c that can be electrically connected, and an annular portion 40 a that extends along a plane that intersects the rotation shaft 22 a of the rotation operation unit 22. Further, the conducting member 30 abuts on the lower side of the sensor electrode portion 52, and the elastic contact 30a elastically contacts the upper surface of the annular portion 40a to conduct between the cover member 40 and the sensor electrode portion 52. It is characterized by being.

  The rotary operation type electrical component 2 of the present embodiment has a structure in which the elastic contact 30a is brought into contact in the vertical direction. The stability of the pressure contact is that the cover member 40 is fixed by bending the locking piece 40 b so that the cover member 40 does not float or tilt with respect to the fixed member 12, and the sensor electrode 52 is connected to the cylinder of the movable member 14. This is ensured by engaging and fixing the groove portion 14 b provided on the outer peripheral surface so that the sensor electrode portion 51 does not separate from the cover member 40. Compared to the present embodiment, when the elastic contact is strongly pressed from the outer peripheral side to the rotatable cylindrical side surface of the sensor electrode part, the size is increased in the lateral direction (outer peripheral direction). In the present embodiment, the elastic contact 30a can be stably brought into contact with a relatively small size without increasing the size of the outer shape. Furthermore, it can be made to contact reliably by having the some elastic contactor 30a.

  The rotary operation unit 22 of the rotary operation type electrical component 2 of the present embodiment is integrally provided with an operation knob 26 so as to cover the upper side of the sensor electrode unit 52. Moreover, the illumination part 60 is arrange | positioned at the through-hole 22b. Thereby, as shown in FIG. 11, members other than the illumination knob 60 and the operation knob 26 formed of an insulating material are hidden from the operator side. Therefore, the operator's finger, which is the detection target, does not directly touch the sensor electrode unit 52, and noise due to static electricity from the operator is reduced.

  The cover member 40 of the rotary operation type electrical component 2 of the present embodiment includes an external connector 40c that can be electrically connected, and an annular portion that extends along a plane that intersects the rotary shaft 22a of the rotary operation unit 22. 40a. Further, the elastic contact 30a is elastically contacted with the upper surface of the annular portion 40a, and conducts between the cover member 40 and the sensor electrode portion 52. It is possible to form a conduction path of the sensor electrode unit 52 that measures the capacitance generated between the object to be detected via the cover member 40.

  Hereinafter, the effect by having set it as this embodiment is demonstrated.

  The rotary operation type electric component 2 of the present embodiment outputs a rotation operation unit 22 having a sensor electrode unit 52 for measuring the capacitance generated between the rotation operation type electric component 2 and a detection target, and an electrical signal accompanying the rotation. A rotation detection unit 10 and a plurality of rotation signal terminals 11 that transmit electrical signals are provided. Furthermore, it has the electroconductive cover member 40 and the elastic contact 30a which were electrically insulated and arrange | positioned with the some rotation signal terminal 11. FIG. The cover member 40 includes an external connector 40 c that can be electrically connected, and an annular portion 40 a that extends along a plane that intersects the rotation shaft 22 a of the rotation operation unit 22. The elastic contact 30 a is in elastic contact with the annular portion 40 a and conducts between the cover member 40 and the sensor electrode portion 52.

  According to this configuration, the sensor electrode unit that measures the capacitance generated between the rotationally-operated electric component 2 and the detection target via the cover member 40 while maintaining a relatively small size without increasing the size of the outer shape. 52 conduction paths can be formed. Therefore, it is possible to detect that the detection target object is touched stably.

  Moreover, the elastic contactor 30a consists of multiple, and is arrange | positioned at intervals in the circumferential direction of the annular part 40a. By having the plurality of elastic contacts 30a, it is possible to ensure contact. In the present embodiment, since there are three elastic contacts 30a, the contact is stable even when a force that tilts the operation knob 26 is applied. Note that the number of the elastic contacts 30a may be further increased.

  Further, the rotary operation unit 22 is integrally provided with an operation knob 26 formed of an insulating material so as to cover the upper side of the sensor electrode unit 52. According to this configuration, the rotary operation type electric component 2 does not directly touch the sensor electrode unit 52 with the finger of the operator who is the detection target, so that noise due to static electricity is reduced.

  Further, the rotation detection unit 10 is arranged so as to be able to come into contact with and separate from the fixed electrode 11a and a substantially cylindrical fixing member 12 having a flange 12a on which fixed electrodes 11a connected to a plurality of rotation signal terminals 11 are arranged. A substantially cylindrical movable member 14 having a slider 13a. The movable member 14 is supported by the fixed member 12 so as to be rotatable integrally with the rotation operation unit 22. According to this configuration, in the rotary operation type electric component 2, it is easy to arrange the illumination unit 60 in the hollow portion, and the operation of the rotation detection unit 10 is stable.

  In the rotary operation type electric component 2 of the present embodiment, the illumination unit 60 is disposed in the hollow portion, but the operation knob 26 is not provided with a through hole, and the through hole 22b of the sensor electrode unit 52 is provided from the illumination unit 60. The passed light may be transmitted through the top surface of the operation knob 26. For example, a sense of quality of the operation knob 26 can be produced.

  Moreover, you may arrange | position another components other than the illumination part 60 in a hollow part. Conventionally, a rotary operation type electrical component in which a push switch is arranged in a hollow portion is known, but a composite electrical component in which a touch sensor is further added to the rotary operation unit 22 can be obtained.

  As mentioned above, although 1st Embodiment and 2nd Embodiment of this invention were described concretely, this invention is not limited to said embodiment, In the range which does not deviate from a summary, it changes variously. It is possible to implement. For example, the present invention can be modified as follows, and these also belong to the technical scope of the present invention.

  (1) In the present embodiment, the conductive member 30 abuts on the lower side of the sensor electrode portions 51 and 52 and the elastic contact 30a is in elastic contact with the upper surface of the annular portion 40a. A similar elastic contact may be changed to elastically contact the lower side of 52. Further, the conductive member may be changed to abut on the annular portion 40a so that the elastic contact is elastically contacted only on the lower side of the sensor electrode portion.

  (2) In the present embodiment, the sensor electrode portions 51 and 52 are formed of a metal material, but may be a material other than metal as long as it is a conductive material. Moreover, the inner wall side of the operation knob formed of an insulating material may be made conductive by plating or the like.

  (3) In the present embodiment, the rotation detection unit 10 is a method in which the fixed electrode 11a and the slider 13a are repeatedly electrically connected and separated, but may be changed to another rotation detection method. Moreover, you may apply to other rotary operation type electric components, such as a variable resistor.

DESCRIPTION OF SYMBOLS 1, 2 Rotation operation type | mold electric component 10 Rotation detection part 11 Rotation signal terminal 11a Fixed electrode 12 Fixed member 12a Claw part 13 Movable electrode 13a Slider 14 Movable member 14a Operation feeling generating part 14b Groove part 15 Spring 21, 22 21a, 22a Rotating shaft 22b Through hole 25, 26 Operation knob 30 Conducting member 30a Elastic contact 40 Cover member 40a Annular part 40b Locking piece 40c External connector 51, 52 Sensor electrode part 60 Illuminating part

Claims (3)

A rotation operation unit having a sensor electrode unit for measuring the capacitance generated between the detection object and the object to be detected;
A rotation detection unit that outputs an electrical signal along with the rotation of the rotation operation unit;
In a rotary operation type electric component comprising a plurality of rotation signal terminals for transmitting an electric signal of the rotation detection unit,
A conductive cover member and an elastic contact disposed electrically insulated from the plurality of rotation signal terminals;
The cover member includes an external connector that can be electrically connected, and an annular portion that extends along a plane that intersects the rotation axis of the rotation operation unit.
The elastic contact is composed of a plurality, arranged at intervals in the circumferential direction of the annular portion, and elastically contacts at least one of the annular portion or the sensor electrode portion, so that the cover member and the sensor electrode portion A rotary operation type electrical component characterized in that electrical conduction is provided between the two.   The rotary operation type electric component according to claim 1, wherein the rotation operation unit is integrally provided with an insulating material so as to cover an upper side of the sensor electrode unit. The rotation detection unit includes a substantially cylindrical fixing member having a flange portion on which fixed electrodes connected to the plurality of rotation signal terminals are disposed, and a slider disposed so as to be able to contact and separate from the fixed electrodes. A substantially cylindrical movable member,
It said movable member rotary electric component according to claim 1 or claim 2, characterized in that it is supported on the fixed member so as to be rotatable the rotation operating portion and integrally.