JP2010157651A - Fitting structure body for rotary electric-electronic component and electric-electronic apparatus using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting structure body for a rotary electric-electronic component, which can more easily secure mechanical stability with a simpler structure against force applied in a rotating operation. <P>SOLUTION: The fitting structure body 1 includes a fitting base 3, a rotary variable resistor 2 fitted to the fitting base 3, a printed board 4 interposed between the rotary variable resistor 2 and fitting base 3, and an insertion member 5. The rotary variable resistor 2 has a fixed portion and a rotary body 15 pivoted rotatably on the fixed portion to be rotated. The rotary variable resistor 2 has a through hole along the rotary shaft line of the rotary body 15. The fitting base 3 has a through hole corresponding to a through hole of the rotary variable resistor 2. The insertion member 5 is held while inserted into the through hole of the rotary variable resistor 2 and the through hole of the fitting base 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mounting structure for rotating electrical / electronic parts such as a variable resistor, a variable capacitor, and a rotary switch, and an electrical / electronic device using the same.

  Patent Document 1 discloses a rotary variable resistor which is one of rotary electric / electronic components and a mounting structure thereof. This rotary variable resistor has a fixed portion and a rotating body that is rotatably supported by the fixed portion and is rotated, and has a through hole along the rotation axis of the rotating body. The fixing portion is provided with a mounting leg that forms a protrusion protruding downward at a position away from the rotation axis. Furthermore, a terminal is provided on the fixed portion.

In the rotary variable resistor mounting structure disclosed in Patent Document 1, the terminals are soldered to the printed circuit board and the mounting legs are fitted into holes formed in the printed circuit board. , Attached to the printed circuit board. In this mounting structure, the through hole of the rotary electric / electronic component is not used at all.
Japanese Patent No. 3552889

  However, in the conventional rotary variable resistor mounting structure disclosed in Patent Document 1, it is not easy to ensure mechanical stability against the force applied during the rotation operation.

  The present invention has been made in view of such circumstances, and it is a rotary electric machine capable of ensuring mechanical stability with a simpler structure and more easily with respect to a force applied during a rotating operation. It is an object of the present invention to provide an electronic component mounting structure and an electric / electronic device using the same.

  The following aspects are presented as means for solving the problems. The rotating electrical / electronic component mounting structure according to the first aspect includes a mounting base, a rotating electrical / electronic component mounted on the mounting base, and an insertion member. And in this 1st aspect, the said rotary electric / electronic component has a fixing | fixed part and the rotary body rotatably supported by this fixing | fixed part so that rotation is possible, The said rotary electric / electronic component Has a through-hole along the rotation axis of the rotating body, the mounting base has a hole corresponding to the through-hole of the rotary electric / electronic component, and the insertion member has the rotary electric -Hold | maintained in the state inserted in the said through-hole of an electronic component, and the said hole of the said mounting base.

  According to the first aspect, since the insertion member is held in the through hole along the rotation axis of the rotating body of the rotating electrical / electronic component and the hole of the mounting base corresponding thereto, The portion where the force applied during the rotation operation is most concentrated is fixed to the mounting base via the insertion member. Therefore, according to the first aspect, the mechanical stability can be easily secured, and the rotating body of the rotating electrical / electronic component can be prevented from wobbling during the rotating operation. Therefore, according to this 1st aspect, a favorable operation feeling can be acquired regarding rotation operation.

  The rotating electrical / electronic component mounting structure according to a second aspect is the first aspect, wherein the hole of the mounting base is a through-hole, and the insertion member is the rotating electrical / electronic component of the rotating electrical / electronic component. The through hole and the mounting base have a head in contact with the outer periphery of one of the through holes of the mounting base at one end, and the through hole and the mounting base of the rotary electric / electronic component The other end portion has a contact structure in contact with the outer peripheral portion of the other through hole. The second aspect is an example in which the through hole of the mounting base is used for holding the insertion member.

  The rotating electrical / electronic component mounting structure according to a third aspect is the second aspect, wherein the contact structure is (i) a bent portion formed in the vicinity of the other end of the insertion member, ii) a crushing portion formed near the other end of the insertion member, (iii) a nut screwed into a screw thread formed near the other end of the insertion member, and (iv) the insertion One of the contact members soldered or brazed to the other end of the member.

  This 2nd aspect gives the specific example of holding | maintenance of an insertion member. In particular, among the above (i) to (iv), since the above (i) and (ii) only need to be deformed by bending or crushing the vicinity of the other end of the insertion member, it is very easy to fix the insertion member. It is.

  The rotating electrical / electronic component mounting structure according to a fourth aspect is the head according to the first aspect, wherein the insertion member is in contact with an outer peripheral portion of the through hole of the rotating electrical / electronic component. At one end and a tapping screw portion near the other end, and the hole of the mounting base is a screw hole formed by the tapping screw portion.

  This fourth aspect also gives a specific example of holding the insertion member. In the fourth aspect, the hole of the mounting base does not necessarily have to penetrate the mounting base.

  A rotating electrical / electronic component mounting structure according to a fifth aspect is the first to fourth aspects, wherein the electrical / electronic device is located on the mounting base side and away from the rotational axis. The mounting base has a fitting hole into which the projection is fitted.

  According to the fifth aspect, the force applied during the rotating operation is dispersed not only in the portion along the rotation axis of the rotary electric / electronic component but also in the portion of the protrusion, so that mechanical stability is achieved. Can be secured even more easily.

  A rotating electric / electronic component mounting structure according to a sixth aspect is the printed circuit board interposed between the rotating electric / electronic component and the mounting base in any of the first to fifth aspects. The rotating electrical / electronic component is electrically connected to the printed circuit board, and the printed circuit board is a through hole corresponding to the through hole of the rotating electrical / electronic component and the hole of the mounting base. The insertion member is also inserted into the through hole of the printed board.

  The sixth aspect is an example in which the mounting base is separated from the printed circuit board to which the rotary electric / electronic parts are electrically connected. In the sixth aspect, the printed circuit board is interposed between the rotating electrical / electronic component and the mounting base, and the insertion member is penetrated not only through the through hole of the rotating electrical / electronic component but also through the printed circuit board. ing. Therefore, according to the sixth aspect, the printed circuit board is attached to the attachment base at the same time as the rotary electric / electronic component is attached to the attachment base by the insertion member. Therefore, according to the sixth aspect, a dedicated screwing or the like for attaching the printed board to the attachment base becomes unnecessary or reduced, so that the space and weight for attaching the printed board to the attachment base are reduced. Savings can be made and assembly is facilitated. In particular, the effect is remarkable in electrical / electronic devices that are required to pursue the minimum size and weight.

  In the first to fifth aspects, the mounting base may be a printed circuit board to which a rotating electrical / electronic component is electrically connected.

  The rotating electrical / electronic component mounting structure according to a seventh aspect is the sixth aspect, wherein the mounting base is bendable, the printed board is a flexible printed board, and the rotating electrical / electronic A plurality of sets of parts and insertion members are provided.

  Conventionally, for example, in a headphone or headphone type electric / electronic device, a plurality of rotating electric / electronic parts such as a volume control knob are arranged on a flexible substrate arranged on a member that can be bent and deformed, such as a headphone band. It was difficult to install the board assembly of the equipment. On the other hand, according to the said 7th aspect, such attachment can be performed easily.

  An electric / electronic device according to an eighth aspect includes the rotating electrical / electronic component mounting structure according to any one of the first to seventh aspects.

  According to the present invention, there is provided a rotating electrical / electronic component mounting structure capable of ensuring mechanical stability with a simpler and simpler structure against a force applied during a rotating operation, and It is possible to provide an electric / electronic device using the.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a rotating electrical / electronic component mounting structure according to the present invention and electrical / electronic equipment using the same will be described with reference to the drawings.

  [First Embodiment]

  FIG. 1 is a schematic cross-sectional view showing a mounting structure 1 according to a first embodiment of the present invention. FIG. 2 is a schematic exploded sectional view showing the mounting structure 1 shown in FIG. FIG. 3 is a schematic exploded perspective view showing the rotary variable resistor 2 in FIGS. 1 and 2.

  The attachment structure 1 according to the present embodiment includes an attachment base 3, a rotary variable resistor 2 as a rotary electric / electronic component attached to the attachment base 3, the rotary variable resistor 2, and the attachment base 3. A printed circuit board 4 interposed between them and an insertion member 5 are provided. FIG. 1 shows a state in which the mounting structure 1 according to the present embodiment is used in an electric / electronic device such as an audio device. FIG. 1 also shows a cover 101 of the electric / electronic device such as an audio device. ing.

  First, the rotary variable resistor 2 used in the present embodiment will be described. The rotary variable resistor 2 has a fixed portion composed of a base 11 and an insulating substrate 12, and a rotating body 15 that is rotatably supported by the fixed portion and is rotatably operated. The rotary variable resistor 2 has a through hole 11d (see FIG. 2) along the rotation axis of the rotating body 15.

  As shown in FIGS. 1 to 3, a metal base 11 formed by pressing or the like is disposed in the lower part. A support shaft 11a is formed in a substantially central portion of the base 11 so as to protrude upward by drawing or the like. A through hole 11d (see FIG. 2) is formed in the support shaft 11a along its axis (corresponding to a rotation axis of a rotating body 15 described later). Two protrusions 11b and 11b protruding downward at a position away from the support shaft 11a are formed on a part of the base body 11 by being bent downward by cutting and raising. Further, a stopper portion 11 c is formed at the end portion of the base 11 by bending upward.

  An insulating substrate 12 made of an epoxy resin material or the like is placed on the upper surface of the base 11. As shown in FIG. 3, the insulating substrate 12 has an outer peripheral end surface 12a formed on one side in a substantially semicircular shape, and a pattern lead portion 12b formed on the other side in a linear shape, and the outer shape is substantially D-shaped. Is formed.

  Further, a through hole 12 c into which the support shaft 11 a of the base body 11 is inserted is formed in a substantially central portion of the insulating substrate 12. A concave portion 12d is formed in the outer peripheral end surface 12a, and the stopper portion 11c of the base 11 is inserted into the concave portion 12d so that the insulating substrate 12 is positioned and prevented from rotating. On the upper surface of the insulating substrate 12, a plurality of signal line patterns 12e each including a substantially horseshoe-shaped resistor pattern and a current collector pattern are formed by printing or the like. A substantially horseshoe-shaped earth pattern 12 f is formed on the insulating substrate 12 between the outer peripheral side of the signal line pattern 12 e and the outer peripheral end of the insulating substrate 12. Ends of the signal line pattern 12e and the ground pattern 12f are formed on the pattern lead-out portion 12b side of the insulating substrate 12, and a plurality of terminals 12g each having an eyelet portion are connected to the end portions of the insulating substrate 12 by caulking. It is attached by etc.

  Further, as shown in FIG. 3, an insulator 13 made of a resin material or the like and having a linear detent portion 13a on the outer peripheral portion is disposed above the insulating substrate 12. A through hole 13b having a predetermined hole diameter is formed at the center of the insulator 13. A plurality of slider pieces 14 having contact portions that slide on the signal line pattern are attached to the lower surface of the insulator 13.

  Such an insulator 13 is attached to a rotating body 15 disposed on the upper side of the insulating substrate 12. The rotating body 15 is made of the same material as that of the insulator 13, and a through hole 15 a is formed at the center of rotation, and the support shaft 11 a of the base body 11 is inserted into the through hole 15 a. As shown in FIG. 2, a substantially circular contact portion 15 b that contacts the periphery of the through hole 12 c of the insulating substrate 12 is formed on the rotating body 15 so as to protrude downward. A concave portion 15c having a predetermined depth is formed on the lower surface side of the rotating body 15, and the insulator 13 is fitted into the concave portion 15c so that the insulator 13 is prevented from rotating.

  Near the outer periphery on the lower surface side of the rotating body 15, a substantially arc-shaped stopper groove 15 d centering on the through hole 15 a is formed in a range of a predetermined rotation angle. The stopper portion 11c of the base body 11 is positioned in the stopper groove 15d so that the rotation angle of the rotating body 15 can be regulated. A knurled irregularity is formed on the outer peripheral portion 15 e of the rotating body 15 to prevent slippage when the rotating body 15 is rotated with an operator's finger or the like.

  To assemble the rotary variable resistor 2, first, the through hole 12 c is inserted into the support shaft 11 a of the base 11, the recess 12 d is positioned in the stopper portion 11 c, and the insulating substrate 12 is placed on the base 11. Next, the stopper groove 15d of the rotating body 15 to which the insulator 13 having the slider piece 14 is attached is aligned with the stopper portion 11c of the base body 11, and the through hole 15a is inserted into the support shaft 11a to thereby insulate the insulating substrate. The rotator 15 is placed on 12. And the front-end | tip of the spindle 11a which protruded upwards from the through-hole 15a of the rotary body 15 is crimped with the crimping jig which is not shown in figure. Thereby, the rotary variable resistor 2 is completed.

  In the present embodiment, the mounting base 3 is, for example, a body of an electric / electronic device such as an audio device, and is configured in a plate shape with an insulating material or metal. As shown in FIG. 2, a through hole 3 a corresponding to the through hole 11 d of the rotary variable resistor 2 is formed in the mounting base 3. Further, the mounting base 3 is formed with a fitting hole 3b into which the protrusion 11b of the rotary variable resistor 2 is fitted.

  In the present embodiment, the printed circuit board 4 is a normal printed circuit board having rigidity. Various electric / electronic components and wiring patterns other than the rotary variable resistor 2 are mounted on the printed circuit board 4, but the illustration thereof is omitted. A through hole 4 a corresponding to the through hole 11 d of the rotary variable resistor 2 is formed in the printed circuit board 4. The printed circuit board 4 is formed with a through hole 4b through which the protrusion 11b of the rotary variable resistor 2 passes.

  In the present embodiment, the insertion member 5 is made of metal and has a pin shape having a head portion 5a at the upper end. The diameter of the head 5 a is larger than the diameter of the through hole 11 d of the rotary variable resistor 2. In addition, the material of the insertion member 5 is not necessarily limited to a metal, and the insertion member 5 does not necessarily need to have the head 5a. When the insertion member 5 does not have the head portion 5a, for example, the vicinity of the upper end of the insertion member 5 may be bent similarly to the vicinity of the lower end.

  In order to assemble the mounting structure 1 according to the present embodiment, as shown in FIG. 2, the printed circuit board 4 is disposed on the mounting base 3, and the rotary variable resistor 2 is further disposed on the printed circuit board 4. The holes 3a, 4a, and 11d are aligned with each other, and the fitting hole 3b, the through hole 4b, and the protrusion 11b are aligned with each other. Then, the protrusion 11 b of the rotary variable resistor 2 is fitted into the fitting hole 3 b of the mounting base 3 through the through hole 4 b of the printed circuit board 4. Further, the insertion member 5 is inserted from the tip thereof in the order of the through hole 11 d of the rotary variable resistor 2, the through hole 4 a of the printed circuit board 4, and the through hole 3 a of the mounting base 3, and the head 5 a of the insertion member 5 is inserted. It is made to contact | abut to the outer periphery part (periphery part on the opposite side to the attachment base | substrate 3) of the through-hole 11d of the rotary variable resistor 2. FIG. At this time, the distal end side of the insertion member 5 protrudes from the through hole 3 a of the mounting base 3. Thereafter, the protruding portion on the distal end side of the insertion member 5 is bent to form a bent portion 5b. As a result, the insertion member 5 fixes the attachment base 3, the printed circuit board 4, and the fixed portion of the rotary variable resistor 2. Thereafter, the terminal 12 g of the rotary variable resistor 2 and a predetermined portion of the printed circuit board 4 are stepped and electrically connected by the solder 16. Thereby, the attachment structure 1 by this Embodiment is completed.

  In the example shown in FIG. 1, as described above, the rotary variable resistor 2 and the printed board 4 are attached to the attachment base 3 on the electric / electronic device side such as an audio device, so that the outer peripheral portion 15e of the rotary body 15 is A part of the cover 101 protrudes slightly from the opening 101a of the cover 101 on the electric / electronic device side. The user can rotate the rotating body 15 by operating the protruding portion of the rotating body 15 with a finger or the like. By this rotation operation, for example, the volume of an audio device or the like can be adjusted.

  In the mounting structure 1 according to the present embodiment, the insertion member 5 is inserted into the through hole 11d along the rotation axis of the rotating body 15 of the rotary variable resistor 2 and the corresponding through hole 3a of the mounting base 3. Therefore, the portion where the force applied most during the rotation operation is concentrated is fixed to the mounting base 3 via the insertion member 5. Therefore, according to the present embodiment, mechanical stability can be easily ensured, and the rotating body 15 of the rotary variable resistor 2 can be prevented from wobbling during the rotation operation. Therefore, according to the present embodiment, it is possible to obtain a good operation feeling with respect to the rotation operation.

  Further, in the mounting structure 1 according to the present embodiment, the rotary variable resistor 2 has a protrusion 11 b on the mounting base 3 side at a position away from the rotation axis of the rotating body 15, and the protrusion 11 b is the mounting base 3. It is fitted in the fitting hole 3b. Therefore, according to the present embodiment, the force applied during the rotation operation is distributed not only to the portion along the rotation axis of the rotary variable resistor 2 but also to the portion of the protrusion 11b. Stability can be more easily ensured. But in this invention, the protrusion 11b and the fitting hole 3b do not necessarily need to be provided.

  Furthermore, in the mounting structure 1 according to the present embodiment, if the printed circuit board 4 is interposed between the rotary variable resistor 2 and the mounting base 3, and the insertion member 5 is only the through hole 11d of the rotary variable resistor 2, The through-hole 4a of the printed board 4 is also penetrated. Therefore, according to the present embodiment, the printed board 4 is attached to the attachment base 3 at the same time that the rotary variable resistor 2 is attached to the attachment base 3 by the insertion member 5. Therefore, according to the present embodiment, dedicated screwing or the like for attaching the printed circuit board 4 to the attachment base 3 becomes unnecessary or reduced, so that the space for attaching the printed circuit board 4 to the attachment base 3 is eliminated. And the weight can be reduced, and the assembly is facilitated.

  In the present embodiment, as described above, the distal end portion of the insertion member 5 protruding downward from the through hole 3a is bent to form a bent portion 5b, thereby preventing the insertion member 5 from being pulled out and fixed. . The processing for fixing the distal end side portion of the insertion member 5 is not limited to bending, and various other processing may be performed. An example is shown in FIG.

  FIG. 4A is an enlarged cross-sectional view in which the vicinity of the tip of the insertion member 5 in FIG. 1 is enlarged. Therefore, Fig.4 (a) has shown a part of attachment structure 1 by this Embodiment. 4B to 4F are enlarged sectional views corresponding to FIG. 4A. 4 (b) to 4 (f), elements that are the same as or correspond to those in FIG. 4 (a) are given the same reference numerals, and redundant descriptions thereof are omitted.

  In the example shown in FIG. 4B, the distal end side of the insertion member 5 is a bent portion 5b as in the present embodiment, but the lower surface of the mounting base 3 is prevented so that the bent portion 5b of the insertion member 5 does not protrude downward. , A recess 3c is formed in the vicinity of the through hole 3a.

  In the example shown in FIG. 4C, the insertion member 5 is fixed by preventing the insertion member 5 from coming off by crushing the distal end portion of the insertion member 5 into the expanded crushing portion 5c.

  In the example shown in FIG. 4D, a screw thread 5d is formed on the distal end portion of the insertion member 5, and a nut 21 is screwed into the screw thread 5d to fix the nut, thereby preventing the insertion member 5 from coming off. And fixed.

  In the example shown in FIG. 4 (e), an annular contact member 22 is inserted into the distal end portion of the insertion member 5 to contact the attachment base 3, and in this state, the contact member 22 and the insertion member 5 By soldering the gap with the solder 23, the insertion member 5 is prevented from coming off and fixed. Instead of soldering, brazing or the like may be employed.

  In the example shown in FIG. 4 (f), a tapping screw portion 5e is formed in the vicinity of the distal end portion of the insertion member 5, and the tapping screw portion 5e is screwed into the mounting base 3 to prevent the insertion member 5 from being detached and fixed. ing. In this example, the length of the insertion member 5 is set to such a length that the tapping screw portion 5e does not penetrate the mounting base 3 and the through-hole 3a is not formed in the mounting. Instead, the mounting base 3 A screw hole is formed by the tapping screw portion 5e.

  Among the examples shown in FIG. 4, in particular, in the examples shown in FIGS. 4A, 4 </ b> B and 4 </ b> C, the distal end portion of the insertion member 5 is simply deformed by bending or crushing. Therefore, it is very easy to fix the insertion member 5.

  [Second Embodiment]

  FIG. 5 is a schematic front view schematically showing a usage state of a headphone type hearing aid 200 as an electric / electronic device according to the second embodiment of the present invention. FIG. 6 is a view taken along arrow A-A ′ in FIG. 5. 5 is the same as that shown in FIG. 6 and is not shown. 5 and 6, the same or corresponding elements as those in FIG. 1 are denoted by the same reference numerals, and redundant description thereof is omitted.

  The hearing aid 200 according to the present embodiment includes a headphone band 203 as an attachment base, right ear and left ear receivers (speakers) 205R and 205L provided at both ends of the headphone band 203, and a headphone band 203. Microphones 206 </ b> R and 206 </ b> L provided on the right side and the left side, a flexible printed board 204 attached on the headphone band 203, two rotary variable resistors 2 attached on the flexible printed board 204, and a flexible printed board 204 and a cover 201 that covers the rotary variable resistor 2. FIG. 5 shows a state in which the hearing aid 200 according to the present embodiment is mounted on the user's head 300. The headphone band 203 is made of, for example, resin, and can be bent in the same manner as a headphone band of a normal headphone.

  In this hearing aid 200, the sound signal collected by the right microphone 206R and converted into an electrical signal is adjusted by the right rotary variable resistor 2 by the right ear amplification circuit mounted on the flexible printed circuit board 204. It is amplified with the degree of amplification. This signal is supplied to the right ear receiver 205R, and the sound amplified from the receiver 205R is output to the right ear of the user. Similarly, an audio signal collected by the left microphone 206L and converted into an electrical signal is amplified by the left-side rotary variable resistor 2 by the left ear amplification circuit mounted on the flexible printed circuit board 204. Amplified in degrees. This signal is supplied to the handset 205L for the left ear, and the sound amplified from the handset 205L is output to the left ear of the user.

  The hearing aid 200 has a mounting structure including a headphone band 203 as a mounting base, a flexible printed circuit board 204, two sets of the rotary variable resistor 2 and the insertion member 5. As can be seen from a comparison of FIG. 6 with FIG. 1, this attachment structure differs from the attachment structure 1 according to the first embodiment, basically using the headphone band 203 instead of the attachment base 3. The flexible printed circuit board 204 is used instead of the rigid printed circuit board 4 and two sets of the rotary variable resistor 2 and the insertion member 5 are used, and they are arranged on the left and right sides. It is only a point. In the present embodiment, the flexible printed circuit board 204 is attached to the headphone band 203 by only two sets of the rotary variable resistor 2 and the insertion member 5.

  A part of the outer peripheral portion 15 e of the rotating body 15 of each rotary variable resistor 2 slightly protrudes from the opening 201 a in front of the cover 201 to the outside.

  The attachment structure employed in the hearing aid 200 according to the present embodiment can also be assembled in the same manner as the attachment structure 1 according to the first embodiment.

  Also in the mounting structure employed in the hearing aid 200 according to the present embodiment, the same advantages as the mounting structure 1 according to the first embodiment can be obtained. In addition, it can be understood that the substrate assembly of the device in which the rotary variable resistor 2 is arranged on the headphone band 203 that can be bent and deformed can be easily attached. In particular, in mounting a board assembly of a device in which a plurality of rotary variable resistors 2 are arranged on a flexible printed circuit board 204 arranged on a headphone band 203 that can be bent and deformed, the rotary variable resistor 2 can be operated during a rotation operation. Since the rotation axis on which the stress is concentrated needs to be fixed vertically and mechanically stably to the curved surface of the headphone band 203, the effect of this embodiment is great.

  [Third Embodiment]

  FIG. 7 is a schematic cross-sectional view showing a mounting structure 401 according to the third embodiment of the present invention, and corresponds to FIG. 7, elements that are the same as or correspond to those in FIG. 1 are given the same reference numerals, and redundant descriptions thereof are omitted.

  The attachment structure 401 according to the present embodiment is different from the attachment structure 1 according to the first embodiment in that the insertion member 5 includes the through hole 11d of the rotary variable resistor 2 and the through hole 4a of the printed circuit board 4. Only between the rotary variable resistor 2 and the printed circuit board 4 by the insertion member 5, and between the printed circuit board 4 and the mounting base 3 (not shown in FIG. 7) is not shown. It is only the point screwed with.

  According to the present embodiment, unlike the first embodiment, a dedicated screw for attaching the printed circuit board 4 to the mounting base 3 is required. However, also in the present embodiment, as in the first embodiment, the through hole 11d along the rotation axis of the rotating body 15 of the rotary variable resistor 2 and the corresponding through hole of the mounting base 3 are provided. Since the insertion member 5 is held in the state inserted into 3 a, the portion where the force applied most during the rotation operation is concentrated is fixed to the mounting base 3 via the insertion member 5. Therefore, according to the present embodiment, mechanical stability can be easily ensured, and the rotating body 15 of the rotary variable resistor 2 can be prevented from wobbling during the rotation operation. Therefore, also according to the present embodiment, it is possible to obtain a good operation feeling with respect to the rotation operation.

  Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments.

  For example, the mounting structure according to the present invention may have other rotary electric / electronic components such as a variable resistor, a variable capacitor, and a rotary switch instead of the rotary variable resistor. The electric / electronic device according to the present invention is not limited to an audio device or a headphone type hearing aid, but may be other types of hearing aids or other various electric / electronic devices.

It is a schematic sectional drawing which shows the attachment structure body of the rotation type variable resistor by the 1st Embodiment of this invention. It is a general | schematic exploded sectional view which shows the attachment structure shown in FIG. FIG. 3 is a schematic exploded perspective view showing the rotary variable resistor in FIGS. 1 and 2. It is a partially expanded sectional view which shows the various process examples of the front end side part of an insertion member. It is a schematic front view which shows typically the use condition of the headphone type hearing aid by the 2nd Embodiment of this invention. FIG. 6 is a view taken along arrow A-A ′ in FIG. 5. It is a schematic sectional drawing which shows the attachment structure body of the rotation type variable resistor by the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting structure 2 Rotary variable resistor 3 Mounting base body 3a Through-hole 3b Fitting hole 4 Printed circuit board 4a, 4b Through-hole 5 Insertion member 5a Head 11b Protrusion 11d Through-hole 15 Rotating body 15
200 Headphone type hearing aid 201 Cover 203 Headphone band (mounting base)
204 Flexible printed circuit board

Claims (8)

A mounting substrate;
A rotating electrical / electronic component attached to the mounting base;
An insertion member;
With
The rotary electric / electronic component has a fixed portion, and a rotating body that is rotatably supported by the fixed portion.
The rotary electric / electronic component has a through hole along the rotation axis of the rotating body,
The mounting base has a hole corresponding to the through hole of the rotary electric / electronic component,
The rotary electric / electronic component mounting structure, wherein the insertion member is held in a state of being inserted into the through hole of the rotary electric / electronic component and the hole of the mounting base. The hole of the mounting base is a through hole;
The insertion member has a head at one end in contact with an outer peripheral portion of one through hole of the through hole of the rotary electric / electronic component and the through hole of the mounting base. 2. The other end portion has a contact structure in contact with an outer peripheral portion of the other through hole of the through hole of the rotary electric / electronic component and the through hole of the mounting base. A mounting structure for rotating electrical / electronic parts as described.   The contact structure includes (i) a bent portion formed in the vicinity of the other end portion of the insertion member, (ii) a crushing portion formed in the vicinity of the other end portion of the insertion member, and (iii) the insertion member. Any one of a nut screwed into a thread formed near the other end, and (iv) an abutting member soldered or brazed to the other end of the insertion member The rotating electrical / electronic component mounting structure according to claim 2, wherein: The insertion member has a head in contact with the outer peripheral portion of the through hole of the rotary electrical / electronic component at one end, and a tapping screw portion near the other end,
2. The rotary electric / electronic component mounting structure according to claim 1, wherein the hole of the mounting base is a screw hole formed by the tapping screw portion.   2. The electric / electronic device has a protrusion at a position away from the rotation axis on the side of the mounting base, and the mounting base has a fitting hole into which the protrusion is fitted. A rotating electrical / electronic component mounting structure according to any one of claims 1 to 4. A printed circuit board interposed between the rotating electrical / electronic component and the mounting base;
The rotating electrical / electronic component is electrically connected to the printed circuit board,
The printed circuit board has a through hole corresponding to the through hole of the rotating electrical / electronic component and the hole of the mounting base;
The rotating electrical / electronic component mounting structure according to claim 1, wherein the insertion member is also inserted into the through hole of the printed circuit board.   The rotary electric / electronic component according to claim 6, wherein the mounting base body can be bent and deformed, the printed circuit board is a flexible printed circuit board, and includes a plurality of sets of the rotary electric / electronic component and the insertion member. Electronic component mounting structure.   An electrical / electronic device comprising the rotating electrical / electronic component mounting structure according to claim 1.

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