JP4484693B2 - Electronic component mounting structure and rotary electronic component - Google Patents

Description

  The present invention relates to an electronic component mounting structure and a rotary electronic component.

  2. Description of the Related Art Conventionally, for example, a rotary electronic component is configured to change its electrical output by rotating a rotary member. FIG. 7 is a view showing a conventional rotary electronic component (oscillating electronic component) 180 of this type. As shown in FIG. 2A, the rotary electronic component 180 is a mold resin rotating body in which a flexible circuit board 200 is mounted on a metal plate base 190 and a neutral point return spring 230 is mounted thereon. 210 is rotatably attached. Here, locking pieces 191 and 193 which are bent and protrude toward the front side of the paper surface are provided at opposite positions on the lower sides of both sides of the base 190, and the base 190 protrudes toward the front side of the paper surface at substantially the center. A cylindrical shaft portion 195 is provided. The flexible circuit board 200 has an arc-shaped switch pattern (or resistor pattern) printed on a portion hidden by the rotating body 210 on the surface thereof, and is mounted so that a terminal 211 made of a metal terminal board protrudes from the lower end portion thereof. Configured.

  The rotating body 210 is made of mold resin, and the lever 213 protrudes from the outer peripheral side surface of the substantially disk-shaped base 212. The center of the base 212 is pivotally supported by the shaft portion 195, and the projecting portion around the periphery. 223 is provided, and a spring accommodating portion 217 recessed in a ring shape is provided around it, and a notch 218 is provided at a lower portion of the spring accommodating portion 217, and both sides thereof are configured as contact portions 219 and 221. A slider (not shown) is attached to the surface of the base 212 on the side of the flexible circuit board 200 and is in contact with the switch pattern (or resistor pattern) of the flexible circuit board 200. The neutral point return spring 230 is a torsion coil spring. The coil portion 231 wound in a ring shape is accommodated in the spring accommodating portion 217, and the drawn portions 233 and 235 at both ends are respectively connected to the abutting portions 219 and 221 of the rotating body 210. The rotating body 210 is positioned at the neutral point by being locked to both the locking pieces 191 and 193 of the base 190.

  In the rotary electronic component 180, the tip of each metal plate terminal 211 is inserted into a hole provided in a terminal pattern portion formed on a hard circuit board (not shown), and the terminal pattern and the terminal 211 are soldered. Are connected to each other to electrically and mechanically fix the rotary electronic component 180 to the circuit board.

  For example, as shown in FIG. 7B, when the lever 213 is pressed in the direction of the arrow a, the rotating body 210 swings clockwise, and a slider (not shown) slides on the switch pattern (or resistor pattern). As a result, the electrical output between the terminals 211 changes. At this time, the left drawing portion 233 of the neutral point return spring 230 remains locked to the locking piece 191, but the right drawing portion 235 is pressed by the contact portion 221 and moves to the drawing portion 233 side. At this time, the coil portion 231 is squeezed to generate a strong rebounding force. Therefore, when the pressure on the lever 213 is released, the rotating body 210 automatically returns to the original neutral position.

However, the conventional rotary electronic component 180 has the following problems.
(1) Since the rotary electronic component 180 has a metal plate terminal 211 protruding from the lower end thereof, the circuit of the rotary electronic component 180 when the rotary electronic component 180 is mounted on a circuit board (not shown). The height from the board becomes high, and the downsizing of the electronic device on which the rotary electronic component 180 is mounted is hindered.

(2) Since solder is used to fix the terminal 211 to a circuit board (not shown), if the solder contains lead, there is an environmental problem.
JP 2002-198209 A

  The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide an electronic component with a simple structure that can be reduced in height and can be easily connected to a circuit board without using solder. It is to provide a mounting structure and a rotary electronic component.

According to the first aspect of the present invention, there is provided an electronic component mounting structure in which a circuit board and an electronic component electrically connected to the circuit board are installed on a mounting base. And a base formed by integrally forming a pressing connection portion extending in a direction away from the electronic component by extending backward from a surface opposite to the electronic component mounting portion of the electronic component mounting portion. And the terminal pattern provided on the circuit board and the flexible circuit board by sandwiching the circuit board and the flexible circuit board drawn out from the electronic component between the pressure connection part of the base and the mounting base. In the electronic component mounting structure, the terminal patterns are press-connected between the terminal patterns.

The invention according to claim 2 of the present application is a base having a flexible circuit board having a functional pattern portion and a terminal pattern portion on the surface, and an electronic component mounting portion for attaching a portion of the flexible circuit board provided with the functional pattern portion. And a rotating electronic component that is rotatably attached to the surface of the portion of the flexible circuit board where the functional pattern portion is provided and changes the output of the functional pattern portion. A pressure contact connecting portion that extends in a direction away from the rotating body by extending backward from a surface on the opposite side of the electronic component mounting portion on which the rotating body is installed, and places the terminal pattern portion of the flexible circuit board; The rotary electronic component is formed integrally with the electronic component mounting portion.

  The invention according to claim 3 of the present application is a pair of latches that are attached to the electronic component mounting portion of the base and abut on the drawing portions on both sides of the coil spring that is attached to the rotating body and automatically returns the rotating body to the neutral position. The rotary electronic component according to claim 2, wherein a portion is provided.

  According to a fourth aspect of the present invention, the electronic component mounting portion of the base is provided with a shaft portion that protrudes through the functional pattern portion of the flexible circuit board, and the rotating body is freely rotatable on the shaft portion. On the other hand, a coil spring housing portion for housing the coil spring is provided on a surface of the rotating body on the side where the shaft portion is inserted and protruded, and the shaft portion is further provided with shaft portions of the rotating body and the coil spring. The rotary electronic component according to claim 3, further comprising a presser member that holds the slipping off of the rotary electronic component.

  In the invention according to claim 5 of the present invention, the connection of the other circuit board to the terminal pattern part of the flexible circuit board is performed on the surface of the pressure connection part of the base with the terminal pattern part and the other circuit board. The rotary electronic component according to claim 2, 3, or 4, wherein the rotating electronic component is performed by overlapping and sandwiching and pressing.

  According to the first aspect of the present invention, the base made of one molded product has both the mounting function of the electronic component to the mounting base and the electrical connection function between the electronic component and the circuit board. The mounting of the electronic component to the mounting base and the electrical connection between the electronic component and the circuit board can be easily and reliably achieved with a small number of components. The terminal pattern provided on the circuit board and the terminal pattern provided on the flexible circuit board are pressed against each other by sandwiching the circuit board and the flexible circuit board drawn out from the electronic component between the press-contact connection portion of the base and the mounting base. Since it is configured to be connected, solder is not necessary for the connection between the two, and the environment is improved. In addition, the electrical connection between the terminal pattern of the flexible circuit board drawn out from the electronic component and the terminal pattern of the circuit board can be made behind the electronic component (position away from the electronic component), thereby reducing the height of the electronic component. Therefore, it is possible to reduce the size of the device on which the electronic component is mounted, particularly the height.

  According to invention of Claim 2, the height of an electronic component can be made low and the size reduction of the apparatus which mounts this electronic component, especially size reduction can be achieved. In addition, since the electronic component mounting portion and the pressure contact connecting portion are formed by integral molding, the number of components can be reduced and assembly is facilitated.

  According to the third aspect of the present invention, the base can be provided with a function of abutting the drawn portions on both sides of the coil spring for automatically returning the neutral position of the rotating body.

  According to the fourth aspect of the present invention, the electronic component mounting portion of the base is provided with the shaft portion that protrudes through the functional pattern portion of the flexible circuit board, and the rotating body is rotatably supported on the shaft portion. Therefore, it is not necessary to separately attach a member for pivotally supporting the rotating body on the function pattern portion, and the number of parts can be reduced and the structure can be simplified. In addition, the rotating body is provided with a coil spring housing part that houses the coil spring, and a pressing member that prevents the rotating body and the coil spring from coming off from the shaft is attached to the shaft, thus preventing the rotating body from coming off the shaft and rotating the coil spring. The prevention from the body can be prevented simultaneously by the pressing member, the number of parts can be reduced, and the assembly is facilitated.

  According to the fifth aspect of the present invention, since the connection of the other circuit board to the terminal pattern portion of the flexible circuit board is performed by the press contact connection, solder is not necessary for the connection between the two, and the environment is improved.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a side sectional view of a mounting structure of a rotary electronic component (hereinafter referred to as “oscillating electronic component” in this embodiment) 1 as an electronic component to which the present invention is applied. As shown in the drawing, the mounting structure of the swingable electronic component 1 is bent from the electronic component mounting portion 81 and the electronic component mounting portion 81 where the swingable electronic component 1 is installed, and is separated from the swingable electronic component 1. A base 80 formed by integrally molding a press-connecting portion 85 extending in a direction, and the circuit board 140 and the swinging electronic component 1 are provided between the press-connecting portion 85 of the base 80 and the mounting base 120. These members are fixed members in a state in which the terminal pattern 141 described below provided on the circuit board 140 and the terminal pattern 19 described below provided on the flexible circuit board 11 are pressed and connected by sandwiching the drawn flexible circuit board 11. 150 is fixed to the mounting base 120 using 150. Each component will be described below.

  FIG. 2 is an exploded perspective view of the mounting structure of the oscillating electronic component 1. In the figure, the swingable electronic component 1 includes a flexible circuit board 11 in which a functional pattern portion 13 and a terminal pattern portion 15 are provided on the surface of a flexible synthetic resin film, and the functional pattern portion 13 of the flexible circuit board 11. A base 80 having an electronic component mounting portion 81 for mounting a portion provided with the function pattern portion 13 and a surface of the flexible circuit board 11 provided with the function pattern portion 13 are rotatably attached to output the function pattern portion 13. And a rotating body 50 that changes.

  Here, as shown in FIG. 3, a base 80 made of mold resin is attached to the periphery and the back surface of the flexible circuit board 11 by insert molding. The flexible circuit board 11 includes a functional pattern portion 13 held by the electronic component mounting portion 81 of the base 80 and a terminal pattern portion 15 protruding from the lower portion of the electronic component mounting portion 81 of the base 80. An arc-shaped sliding contact pattern 17 is provided on the surface of the pattern portion 13, a terminal pattern 19 is provided on the terminal pattern portion 15, and the sliding pattern 17 and the terminal pattern 19 are connected by a connection pattern 21. The sliding contact pattern 17 may be a switch pattern, a resistor pattern, or a pattern having functions other than those. On both side surfaces of the terminal pattern portion 15, there are provided concave engaging portions 23, 23 for engaging mounting pieces 153 of the fixing member 150 described below. A through hole 25 made of a small hole is provided at the center of the flexible circuit board 11 (rotational center axis portion of the rotating body 50) (see FIG. 1).

  The base 80 includes an electronic component mounting portion 81 formed by molding resin in a substantially semicircular shape, and the swingable electronic component 1 (rotating body 50) by bending the electronic component mounting portion 81 into a substantially L shape. And a press-contact connection portion 85 extending in the direction away from the rear (backward). The electronic component mounting portion 81 is formed so as to surround the periphery and the back surface of the functional pattern portion 13 of the flexible circuit board 11, and the lower portion thereof is a linear substrate bent side 82 (see FIG. 1) that extends in the horizontal direction. It has become. Further, a stopper locking portion 83 is provided at the upper center of the electronic component mounting portion 81, and mounting portions 84, 84 projecting forward (rotating body 50 side) are provided on both sides of the board bent side 82. Is provided. The upper surface of the attachment portion 84 is a planar locking portion 84a that inclines so as to descend outward in the radial direction. The electronic component mounting portion 81 is provided with a cylindrical shaft portion 87 that protrudes through the through hole 25 (see FIG. 1) provided in the functional pattern portion 13 of the flexible circuit board 11, and the tip of the shaft portion 87. A cylindrical mounting portion 89 having an outer dimension smaller than that of the shaft portion 87 is projected. Next, the press-connecting portion 85 has a flat plate shape, and concave engagement portions 86 and 86 for engaging attachment pieces 153 of the fixing member 150 described below are provided on both sides thereof.

  The rotating body 50 includes a rotating member 51 and a slider 67. The rotating body 50 is provided with a resilient means (hereinafter referred to as “torsion coil spring” in this embodiment) 73, and further, as will be described below, the base member 80 is prevented from coming off from the shaft portion 87 by the pressing member 79. Yes. The rotating member 51 is a substantially disc-shaped molded resin molded product, and a through hole 52 into which the shaft portion 87 of the base 80 is rotatably inserted is provided at the center, and one surface thereof is a slider mounting surface. 53, and a bullet means storing portion 55 is provided on the other surface. The elastic means housing portion 55 is formed by a ring-shaped recess surrounding the periphery of the through hole 52, and a pair of notch-like lead portion insertion portions 58, 58 are provided outward in the radial direction. Further, the center of the elastic means storing portion 55 is a cylindrical protruding portion 59 in which the through hole 52 is formed. The lower surfaces of the drawing portion insertion portions 58 and 58 are contact portions 60 and 60. A knob mounting portion 61 protrudes from the upper portion of the rotating member 51. The resilient means accommodating portion 55 is formed to have a dimension for accommodating a coil portion 75 of a torsion coil spring 73 described below. On the slider mounting surface 53 of the rotating member 51, as shown in FIG. 1, a small projection-like fixing portion 63 to be inserted into the mounting portions 69 and 69 of the slider 67 described below is projected.

  The slider 67 shown in FIG. 1 is formed by forming an elastic metal plate in a substantially ring shape, and is provided with mounting portions 69, 69 each having a hole at two upper and lower portions thereof, and a sliding contact portion at a predetermined position. 71 is provided. The torsion coil spring 73 shown in FIG. 2 is configured by pulling out lead portions 77 and 77 from both ends of a coil portion 75 in which a wire is wound in a coil shape. The torsion coil spring 73 is wound so that the inner diameter of the coil portion 75 is reduced by moving both the lead-out portions 77 and 77 in the upward direction so as to be narrowed.

  The pressing member 79 is formed by molding resin in a circular plate shape and is molded to have an outer dimension that closes the elastic means storing portion 55 of the rotating member 51, and an attachment portion 89 of the base 80 is formed at the center thereof. An insertion portion 791 including a circular through hole to be inserted is provided, and a spring pressing portion 793 protruding in a ring shape is provided on the surface of the rotating member 51 as shown in FIG. The spring pressing portion 793 is formed at a position for pressing the coil portion 75 so as to oppose the elastic means storing portion 55 of the rotating member 51.

  The fixing member 150 is made of a metal plate, and has a rectangular holding portion 151 that substantially covers the upper surface of the press contact connection portion 85 of the base 80, and two protruding from both sides of the holding portion 151 and bent downward. A tongue-shaped attachment piece 153 is provided. Each attachment piece 153 is formed at a position facing each engagement portion 86, 86 of the pressure contact connection portion 85.

  The circuit board 140 is provided with three terminal patterns 141 on a synthetic resin film having flexibility, and the drawing patterns 143 drawn from the terminal patterns 141 are led out to the drawing portions 145 of the circuit board 140. Various other circuits (not shown) are formed on a further portion (not shown) of the drawing portion 145 of the circuit board 140, and various electronic components are mounted. Further, two concave engaging portions 147 are provided on one side of the front end side of the circuit board 140, and the portion on the side where the lead portion 145 is drawn out from the portion where each terminal pattern 141 is formed is also formed with two through holes. An engaging portion 147 is provided.

  The mounting base 120 is formed by molding a mold resin into a substantially rectangular shape, and the front side thereof is an electronic component installation part 121, and the rear side is a substrate pressure contact part 123. A rectangular and concave resilient means accommodating portion 125 is provided at the approximate center of the substrate pressure contact portion 123, and two concave engagement portions 127 are provided on both sides of the substrate pressure contact portion 123, respectively. . Further, the elastic means 130 housed in the elastic means storage part 125 is made of an elastic metal plate, and protrudes from the one side in the longitudinal direction of the substantially rectangular base 131 to protrude upward. It is configured by forming a resilient portion 135 that protrudes upward at the tip of each.

  Next, a method for assembling the oscillating electronic component 1 will be described. First, the slider 67 is brought into contact with the slider mounting surface 53 facing the base 80 of the rotating member 51 in advance, and the rotating member 51 is provided at that time. The fixing portion 63 (see FIG. 1) is inserted into mounting portions 69 and 69 (see FIG. 1) provided on the slider 67, and the tip is fixed by heat caulking. Next, the rotating member 51 is installed on the surface of the functional pattern portion 13 of the flexible circuit board 11 attached to the base 80, and the shaft portion 87 of the base 80 can be freely rotated in the through hole 52 of the rotating member 51. Insert into. Next, the coil portion 75 of the torsion coil spring 73 is accommodated in the elastic means housing portion 55 of the rotating member 51, and the drawing portions 77 and 77 at both ends are respectively inserted into the drawing portion insertion portions 58 and 58 of the rotating member 51. Elastically contacted with the contact portions 60, 60 (at this time, the leading end of the lead-out portion 77 protrudes outward from the lead-out portion insertion portions 58, 58 and is elastically in contact with the locking portion 84a of the base 80), Then, the attachment member 89 of the base 80 is inserted into the insertion portion 791 of the holding member 79 by covering the holding member 79, and the distal end thereof is caulked with heat to hold the rotating body 50 and the torsion coil spring 73 from coming off from the shaft portion 87. Thereby, the swinging electronic component 1 is completed. At this time, the sliding contact portion 71 of the slider 67 is in contact with the sliding contact pattern 17 of the function pattern portion 13.

  Next, a method of mounting the swinging electronic component 1 assembled as described above on the mounting base 120 will be described. First, in FIG. 2, after storing the elastic means 130 in the elastic means storage part 125 of the mounting base 120 so that the elastic part 135 protrudes outside a predetermined dimension from the opening surface of the elastic means storage part 125, A circuit board 140 with the terminal pattern 141 facing upward is placed thereon. Next, the terminal pattern portion 15 of the flexible circuit board 11 attached to the base 80 is bent on the lower surface side of the press-contact connection portion 85 of the base 80 as shown in FIG. 2 and placed on the circuit board 140. Then, the pressing portion 151 of the fixing member 150 is placed on the upper surface of the press contact connection portion 85, and at this time, the attachment pieces 153 of the fixing member 150 are connected to the engagement portions 86 and 86 of the press contact connection portion 85 and the terminal pattern portion 15. The engaging portions 23, 23, the engaging portions 147 of the circuit board 140, and the engaging portions 127 of the mounting base 120 are engaged, and the tips of the mounting pieces 153 are bent to the back surface of the mounting base 120, thereby swinging. At the same time as fixing the base 80 to which the movable electronic component 1 is fixed to the mounting base 120, the three terminal patterns 141 of the circuit board 140 and the three terminal patterns 19 of the flexible circuit board 11 placed on the mounting base 120. The bottom surface of the pressure contact portion 85 and the three resilient portions 135 of the resilient means 130 are respectively pressure contacted. In other words, the circuit board 140 and the flexible circuit board 11 drawn out from the swingable electronic component 1 are sandwiched between the pressure connection part 85 of the base 80 and the mounting base 120, so that the elastic member storage part 125 can be opened from the opening surface. When the three projecting portions 135 of the projecting projecting means 130 are pushed down by the predetermined dimension, the terminal pattern 141 provided on the circuit board 140 and the terminal pattern 19 provided on the flexible circuit board 11 are caused by the resilience. Make a pressure connection. That is, the clamping between the flexible circuit board 11 and the circuit board 140 drawn out from the swinging electronic component 1 attached to the electronic component mounting portion 81 is bent from the electronic component mounting portion 81 and away from the swinging electronic component 1. This is performed by the press-connecting connection portion 85 that extends and is located at the rear of the oscillating electronic component 1.

  FIG. 4 is an operation explanatory view of the swinging electronic component 1 assembled as described above (however, the description of the pressing member 79 is omitted). A knob 160 is attached to the knob attachment portion 61 of the swinging electronic component 1. When the rotating body 50 is in the neutral position, the both drawn portions 77 and 77 of the torsion coil spring 73 are in elastic contact with the contact portions 60 and 60 of the rotating body 50 and the locking portions 31 and 31 of the base 80.

  For example, if the knob 160 is swung in the direction of arrow A, the entire rotating body 50 is swung in the direction of arrow A, and the sliding contact portion 71 of the slider 67 slides on the sliding contact pattern 17 of the flexible circuit board 11. And change its output. At this time, the left drawing portion 77 of the torsion coil spring 73 is held in its original position, and the right drawing portion 77 is pushed up by the contact portion 60 to be in the state of FIG. At this time, the coil portion 75 of the torsion coil spring 73 is twisted in the direction of increasing the number of turns, so that the outer diameter thereof is reduced. Therefore, the outer periphery of the coil portion 75 does not abut strongly against the inner peripheral surface of the elastic means housing portion 55. Therefore, the twist can be smoothly and reliably performed. When the swing of the knob 160 is released, the rotating body 50 automatically returns to the original state shown in FIG. 4A by the elastic return force of the torsion coil spring 73.

  Then, according to the mounting structure of the swingable electronic component 1, as shown in FIG. 1, the mounting function of the swingable electronic component 1 to the mounting base 120 and the swinging function are mounted on the base 80 made of one molded product. Since the electrical connection function between the movable electronic component 1 and the circuit board 140 is provided, both of these functions can be achieved easily and reliably with few components.

  Further, another circuit board 140 is connected to the terminal pattern portion 15 of the flexible circuit board 11 placed on the pressure contact connecting portion 85 that is bent from the electronic component mounting portion 81 of the base 80 and extends away from the rotating body 50. Therefore, the electrical connection between the oscillating electronic component 1 and the circuit board 140 can be performed behind the oscillating electronic component 1, thereby reducing the height of the oscillating electronic component 1. The device on which the electronic device 1 is mounted can be reduced in size, particularly in height.

  Further, according to the mounting structure of the swinging electronic component 1, the electronic component mounting portion 81 of the base 80 is provided with the shaft portion 87 that protrudes through the functional pattern portion 13 of the flexible circuit board 11. Since the rotary body 50 is pivotally supported on the functional pattern portion 13, there is no need to separately prepare a member for rotatably mounting the rotary body 50 on the function pattern portion 13, which reduces the number of parts and simplifies the structure. I can plan.

  FIG. 5 is an exploded perspective view of a mounting structure of a rotary electronic component (hereinafter referred to as “oscillating electronic component” in this embodiment) 1-2 according to another embodiment of the present invention, and FIG. 6 is a side sectional view thereof. is there. In the mounting structure of the oscillating electronic component 1-2 shown in both drawings, the same or corresponding parts as those of the mounting structure of the oscillating electronic component 1 according to the embodiment are given the same reference numerals. Note that matters other than those described below are the same as those in the first embodiment. The outline of the mounting structure of the swingable electronic component 1-2 shown in the figure, which is different from the mounting structure of the swingable electronic component 1, is that the fixing member 150 is omitted and the press contact connection portion of the base 80 is used instead. The flexible circuit board 11 placed on the lower surface of the press-connecting portion 85, and two locking claws 90 facing the downward direction (circuit board 140 direction) on both sides of the 85 are provided by molding integrally with the base 80. This is that the terminal pattern portion 15 is fixed to the press contact connection portion 85 in advance by thermal caulking.

  Here, each latching claw 90 has a columnar shape and has a thickness having elasticity, and is provided at a position to be inserted into each engagement portion 147 of the circuit board 140 and each engagement portion 127 of the mounting base 120. A claw portion 91 is provided at the tip. On the other hand, as shown in FIG. 6, a small protrusion 851 that protrudes toward the circuit board 140 is provided at a predetermined position on the lower surface of the press-connecting connection 85, and the small protrusion 851 is provided at a position facing the small protrusion 851. It is inserted into the small hole 151 of the terminal pattern portion 15 of the circuit board 11, and the tip thereof is fixed by heat caulking. Further, the heat caulking tip of the small protrusion 851 slightly protrudes from the surface of the terminal pattern portion 15, so that a through hole 148 is provided at a position facing the circuit board 140 to accommodate the protruding portion, and the mounting base 120. A housing recess 129 is provided at a position on the surface of the housing facing this.

  If the mounting structure of the swinging electronic component 1-2 is configured as described above, the locking claw 90 is provided in the press contact connection part 85 and the press contact connection part 85 and the mounting base 120 are sandwiched. The fixing member 150 used for the mounting structure of the electronic device 1 can be omitted, and not only can the number of components be reduced, but also the mounting work can be facilitated. Further, since the terminal pattern portion 15 of the flexible circuit board 11 is fixed to the lower surface of the press-connecting connection portion 85 in advance, it is not necessary to place the flexible circuit board 11 on the circuit board 140 while bending the assembly. Work becomes easier.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. Note that any shape, structure, or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited. For example, the pressure connection between the terminal pattern 141 of the circuit board 140 and the terminal pattern 19 of the flexible circuit board 11 is not performed by using the elastic means 130, but an elastic portion is provided in the pressure connection portion 85 itself of the base 80. The flexible circuit board 11 may be configured to be bulleted from the upper side, or the mounting base 120 may be provided with a bulleted portion so that the circuit board 140 is bulleted from the lower side. Moreover, in the said embodiment, although the circuit board 140 is comprised by the flexible circuit board, you may comprise by a rigid circuit board. In the above embodiment, the swingable electronic components (rotary electronic components) 1 and 1-2 are used as the electronic components to be attached to the base 80. However, any other electronic component that can be attached to the base 80 is used. Various other electronic components such as a rotary electronic component having a structure may be used. In the oscillating electronic component 1, the press contact connection portion 85 of the base 80 is fixed to the mounting base 120 with the circuit board 140 and the terminal pattern portion 15 sandwiched by the fixing member 150, but instead of the fixing member 150. It may be fixed by other fixing means such as a screw. Further, in the above embodiment, the base 80 is configured by integrally molding the electronic component mounting portion 81 and the press contact connection portion 85 that is bent from the electronic component mounting portion 81 and extends away from the swinging electronic component 1. However, it is not always necessary to bend. In short, the base 80 is integrally formed with the electronic component mounting portion 81 and the press contact connection portion 85 extending from the electronic component mounting portion 81 and extending away from the oscillating electronic component 1. Anything is acceptable.

2 is a side cross-sectional view of a mounting structure for a swinging electronic component 1. FIG. 1 is an exploded perspective view of a mounting structure for a swinging electronic component 1. FIG. 2 is a perspective view showing a base 80 and a flexible circuit board 11. FIG. FIG. 6 is an explanatory diagram of the operation of the swinging electronic component 1 (however, the pressing member 79 is not shown). It is a disassembled perspective view of the attachment structure of the rocking | swiveling electronic component 1-2. It is a sectional side view of the attachment structure of the rotary electronic component 1-2. It is a figure which shows the conventional rotary electronic component (oscillating electronic component) 180. FIG.

Explanation of symbols

1 Oscillating electronic components (rotating electronic components, electronic components)
DESCRIPTION OF SYMBOLS 11 Flexible circuit board 13 Function pattern part 15 Terminal pattern part 17 Sliding contact pattern 19 Terminal pattern 50 Rotating body 51 Rotating member (rotating body)
67 Slider (Rotating body)
73 Torsion coil spring
75 Coil portion 77 Pull-out portion 79 Holding member 80 Base 81 Electronic component mounting portion 84a Locking portion 85 Press connection portion 120 Mounting base 130 Ejecting means 140 Circuit board 141 Terminal pattern 150 Fixing member 1-2 Oscillating electronic component ( Rotating electronic parts, electronic parts)

Claims (5)

In an electronic component mounting structure in which a circuit board and an electronic component electrically connected to the circuit board are installed on a mounting base,
An electronic component mounting portion for installing the electronic component, and a pressure connection portion extending in a direction away from the electronic component by extending backward from a surface on the opposite side of the electronic component mounting portion on which the electronic component is installed. It has a base that is integrally molded,
A terminal pattern provided on the circuit board and a terminal provided on the flexible circuit board by sandwiching the circuit board and a flexible circuit board drawn out from the electronic component between the press-contact connection portion of the base and the mounting base An electronic component mounting structure characterized by press-connecting between patterns. A flexible circuit board provided with a functional pattern part and a terminal pattern part on the surface, a base having an electronic component attaching part for attaching a part provided with the functional pattern part of the flexible circuit board, and a functional pattern part of the flexible circuit board In a rotary electronic component comprising a rotating body that is rotatably attached to the surface of a portion provided with a rotating body that changes the output of the function pattern portion,
The base is placed on the terminal pattern portion of the flexible circuit board extending in a direction away from the electronic component the rotating body from the surface opposite that established the rotating body of the mounting portion by extending in the rear A rotary electronic component comprising: a pressure contact connecting portion formed integrally with the electronic component mounting portion.   The electronic component mounting portion of the base is provided with a pair of locking portions that are attached to the rotating body and abut on the drawing portions on both sides of a coil spring that automatically returns the rotating body to a neutral position. Item 3. The rotary electronic component according to Item 2. The electronic component mounting portion of the base is provided with a shaft portion that protrudes through the functional pattern portion of the flexible circuit board, and the rotating body is pivotally supported on the shaft portion,
On the other hand, a coil spring accommodating portion for accommodating the coil spring is provided on the surface of the rotating body on the side where the shaft portion is inserted and protruded,
The rotary electronic component according to claim 3, further comprising a pressing member attached to the shaft portion for holding the rotating body and the coil spring from coming off from the shaft portion.   The connection of the other circuit board to the terminal pattern part of the flexible circuit board is performed by sandwiching and pressing the terminal pattern part and the other circuit board on the surface of the pressure connection part of the base. The rotary electronic component according to claim 2, 3, or 4, wherein the rotary electronic component is performed.

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