JP2022042411A - Rotary operation type electronic component - Google Patents

Abstract

To prevent an electrical connection from becoming unstable.SOLUTION: A rotary operation type electronic component 1 comprises a substrate 2, a rotating body 3, a plurality of terminals 4, a contact plate 5, and a slide member 6. The substrate 2 has a ring-shaped storage part 24. The rotating body 3 has a ring-shaped flange part 32 stored in the storage part 24 and is rotatable with respect to the substrate 2. The contact plate 5 has a plurality of contacts arranged on a bottom face of the storage part 24. The slide member 6 has a plurality of sliders 61 that slide on the bottom face of the storage part 24 in association with the rotation of the rotating body 3 and are brought into contact with the contacts. The slide member 6 has a ring shape with an outer peripheral part 62. The substrate 2 has a holding part 224 that projects from the bottom face of the storage part 24 toward the slide member 6 and holds the outer peripheral part 62 of the slide member 6. The slide member 6 is held such that the outer peripheral part 62 of the slide member 6 is sandwiched by the flange part 32 of the rotating body 3 and the holding part 224 of the substrate 2 and the movement in a rotation axis direction of the rotating body 3 is regulated.SELECTED DRAWING: Figure 5

Description

The present disclosure relates generally to rotation-operated electronic components, and more particularly to rotation-operated electronic components including a rotating body.

Patent Document 1 describes a rotary electric component (rotational operation type electronic component) including a case (base), an operation shaft (rotating body), a plurality of patterns (contact plates), a plurality of terminals, and a sliding member. Parts) are listed.

The case has an annular storage portion that is bottomed and has an open front side. The operating shaft has an annular flange portion that is housed in the housing portion of the case. The plurality of patterns are made of a conductive metal plate and are provided on the bottom surface of the storage portion by insert molding or the like. The plurality of terminals are derived from a plurality of patterns. The sliding member has an annular portion having an annular shape and a plurality of sliders provided on the outer peripheral portion of the annular portion. The plurality of sliders are configured to be slidable with respect to the plurality of patterns.

In the rotary electric component described in Patent Document 1, after inserting a plurality of mounting pieces provided in the flange portion of the operation shaft into a plurality of holes provided in the annular portion of the sliding member, the plurality of mounting pieces are inserted. The sliding member is fixed to the operation shaft by being deformed by heat or the like.

Japanese Unexamined Patent Publication No. 2011-141194

In the rotary electric component described in Patent Document 1, when mounted on a printed wiring board or the like by reflow, a plurality of mounting pieces of the operation shaft may be softened by the heat of the reflow, and the sliding member may loosen with respect to the operation shaft. be. This can lead to instability in the electrical connection of the plurality of sliders to the plurality of patterns.

An object of the present disclosure is to provide a rotation-operated electronic component capable of suppressing unstable electrical connection.

The rotation-operated electronic component according to one aspect of the present disclosure includes a substrate, a rotating body, a plurality of terminals, a contact plate, and a sliding member. The substrate is a resin molded body and has an annular accommodating portion. The rotating body is a resin molded body, has an annular flange portion accommodated in the accommodating portion, and is rotatable with respect to the substrate. The plurality of terminals are held on the substrate. The contact plate is electrically connected to each of the plurality of terminals, and has a plurality of contacts arranged on the bottom surface of the accommodating portion. The sliding member is located between the contact plate and the flange portion, and slides on the bottom surface of the accommodating portion as the rotating body rotates, and a plurality of sliders that come into contact with the contacts. Has. The sliding member is an annular shape having an outer peripheral portion located outside the plurality of sliders. The substrate has a holding portion that protrudes from the bottom surface of the accommodating portion toward the sliding member and holds the outer peripheral portion of the sliding member. In the sliding member, the outer peripheral portion of the sliding member is sandwiched between the flange portion of the rotating body and the holding portion of the substrate, and the sliding member moves in the vertical direction, which is the rotation axis direction of the rotating body. It is kept to be regulated.

The rotation-operated electronic component according to one aspect of the present disclosure can suppress unstable electrical connection.

FIG. 1 is a perspective view of a rotation-operated electronic component according to an embodiment. FIG. 2 is an exploded perspective view of the rotation-operated electronic component as seen from above. FIG. 3 is an exploded perspective view of the same rotary-operated electronic component as viewed from below. FIG. 4 is a plan view of the same rotation-operated electronic component. FIG. 5A shows the same rotary-operated electronic component as above, and is a cross-sectional view taken along the line X1-X1 of FIG. FIG. 5B shows the same rotary-operated electronic component as above, and is an enlarged view of the main part A1 of FIG. 5A. FIG. 5C shows the same rotary-operated electronic component as above, and is an enlarged view of the main part A2 of FIG. 5A. FIG. 6 is a plan view of the rotary operation type electronic component having the same mounting bracket, spring member, rotating body, and sliding member removed. FIG. 7 is a plan view of a contact plate and a plurality of terminals in the same rotary operation type electronic component. FIG. 8 is a plan view of the rotation-operated electronic component of the same, with the mounting bracket, the spring member, and the rotating body removed. FIG. 9A is a bottom view of the same rotary-operated electronic component in a state where the substrate, a plurality of terminals, and the contact plate are removed. 9B is an enlarged view of the main part A3 of FIG. 9A.

(Embodiment)
Hereinafter, the rotation-operated electronic component 1 according to the present embodiment will be described with reference to FIGS. 1 to 9B.

However, the embodiments and modifications described below are merely examples of the present disclosure, and the present disclosure is not limited to the following embodiments and modifications. Other than the following embodiments and modifications, various changes can be made according to the design and the like as long as they do not deviate from the technical idea of the present disclosure.

In addition, each of the figures described in the following embodiments and the like is a schematic view, and the ratio of the size and the thickness of each component in each figure does not necessarily reflect the actual dimensional ratio. Not always.

In the following, in the directions shown in FIGS. 1 to 9B, each direction of "up", "down", "left", "right", "front", and "rear" is defined. That is, in the rotation operation type electronic component 1 according to the present embodiment, the rotation axis Ax1 (see FIG. 4) of the rotating body 3 is in the vertical direction, and the direction in which the pair of leg pieces 83 of the mounting bracket 8 are arranged is in the left-right direction. , The direction orthogonal to both the vertical direction and the horizontal direction is the front-rear direction. However, these directions are not intended to define the direction in which the rotation-operated electronic component 1 is used. In addition, the arrows indicating each direction in the drawing are shown only for the sake of explanation, and are not accompanied by an entity.

Further, in the following, the state viewed from above is also referred to as "top view", and the state viewed from below is also referred to as "bottom view".

(1) Outline First, an outline of the rotation-operated electronic component 1 according to the present embodiment will be described with reference to FIGS. 1 to 4.

The rotation-operated electronic component 1 according to the present embodiment is, for example, a rotary encoder. In the present embodiment, for example, it is assumed that the rotation-operated electronic component 1 is mounted and used on a printed wiring board or the like by a reflow soldering method. Therefore, when passing through the reflow furnace, the entire rotation-operated electronic component 1 is heated to substantially the same temperature as the soldered portion of the printed wiring board.

As shown in FIGS. 1 to 4, the rotation-operated electronic component 1 according to the present embodiment includes a substrate 2, a rotating body 3, a plurality of (for example, three) terminals 4, a contact plate 5, and a slide. A moving member 6 is provided. Further, the rotation-operated electronic component 1 further includes a spring member 7 and a mounting bracket 8.

The substrate 2 is a resin molded body. The substrate 2 has a shaft portion 21 and an accommodating portion 24. The shape of the shaft portion 21 is a circular tube whose axial direction is the vertical direction. The shape of the accommodating portion 24 is an annular shape. The accommodating portion 24 surrounds the shaft portion 21 on one end side (lower end side) of the shaft portion 21 in the axial direction. The accommodating portion 24 has a box shape with one surface (upper surface) open. As shown in FIG. 3, the substrate 2 further has a plurality of (for example, three) spacer projections 221 in contact with the printed wiring board, and a plurality of (for example, two) printed wiring board positioning projections 222. .. Each of the plurality of spacer protrusions 221 projects downward from the lower surface of the bottom wall 22 of the substrate 2. The shape of each of the plurality of spacer protrusions 221 is cylindrical. One of the plurality of printed wiring board positioning protrusions 222 projects downward from the lower surface of one of the three spacer protrusions 221 for spacers 221. The other of the plurality of printed wiring board positioning protrusions 222 projects downward from the lower surface of the bottom wall 22 of the substrate 2. The shape of each of the plurality of printed wiring board positioning protrusions 222 is cylindrical. The outer diameter of each of the plurality of printed wiring board positioning protrusions 222 is smaller than the outer diameter of each of the plurality of spacer protrusions 221. Further, the tip of each of the plurality of printed wiring board positioning protrusions 222 is tapered. In the present embodiment, the substrate 2 functions as a case for accommodating the flange portion 32 of the rotating body 3, the sliding member 6, and the spring member 7.

In the rotation-operated electronic component 1, for example, when the rotation-operated electronic component 1 is mounted on the printed wiring board, a plurality of spacer protrusions 221 are interposed between the bottom wall 22 of the substrate 2 and the printed wiring board. Can be done. Further, in the rotation-operated electronic component 1, for example, when the rotation-operated electronic component 1 is mounted on the printed wiring board, a plurality of printed wiring board positioning protrusions 222 are passed through the plurality of positioning holes of the printed wiring board. As a result, the rotation-operated electronic component 1 can be positioned with respect to the printed wiring board, and the load applied to the plurality of terminals 4 passed through the plurality of terminal insertion holes of the printed wiring board can be reduced.

The substrate 2 further comprises a holding portion 224 (see FIGS. 5A-5C). The holding portion 224 projects upward (sliding member 6 side) from the bottom surface (upper surface of the bottom wall 22) of the accommodating portion 24 of the substrate 2. In the rotation-operated electronic component 1, the holding portion 224 is provided over the entire circumference of the accommodating portion 24 of the substrate 2. The holding portion 224 sandwiches the outer peripheral portion 62 of the sliding member 6 described later with the flange portion 32 of the rotating body 3 described later.

The rotating body 3 surrounds the shaft portion 21 of the base 2, and can rotate with the shaft portion 21 of the base 2 as the rotation center axis. The rotating body 3 is a resin molded body. The rotating body 3 has a cylindrical portion 31 and a flange portion 32. The shape of the cylindrical portion 31 is a circular tube whose axial direction is the vertical direction. The shape of the flange portion 32 is an annular shape. The flange portion 32 is integrally formed at one end (lower end) of the cylindrical portion 31 in the axial direction over the entire circumference of the cylindrical portion 31. In the rotation-operated electronic component 1, the flange portion 32 of the rotating body 3 is accommodated in the accommodating portion 24 of the substrate 2.

The plurality of terminals 4 are held on the substrate 2. Each of the plurality of terminals 4 has conductivity. Each of the plurality of terminals 4 protrudes from the substrate 2.

The contact plate 5 is held on the substrate 2. The contact plate 5 has a plurality of contacts (first contact plate 51, second contact plate 52, and third contact plate 53). The plurality of contact plates 5 are electrically connected to the plurality of terminals 4, respectively. In the rotation-operated electronic component 1, a plurality of terminals 4 and a contact plate 5 are integrally formed.

The sliding member 6 has a plurality of (for example, five) sliders 61 and an outer peripheral portion 62. The sliding member 6 is located between the contact plate 5 and the flange portion 32 of the rotating body 3, and is held by the rotating body 3. The plurality of sliders 61 can come into contact with the contact plate 5. The outer peripheral portion 62 is located outside the plurality of sliders 61. In the rotation-operated electronic component 1, the outer peripheral portion 62 of the sliding member 6 is sandwiched between the flange portion 32 of the rotating body 3 and the holding portion 224 of the base 2, and is in the vertical direction (direction of the rotating shaft Ax1 of the rotating body 3). It is held so that movement to is restricted.

The spring member 7 exerts an elastic force on the flange portion 32 of the rotating body 3 in the axial direction (vertical direction) of the shaft portion 21 so as to bring the rotating body 3 closer to the base 2.

The mounting bracket 8 is a bracket for mounting the rotating body 3 to the substrate 2. The mounting bracket 8 closes the upper surface opening of the accommodating portion 24 of the substrate 2. That is, the mounting bracket 8 also serves as a cover for closing the upper surface opening of the accommodating portion 24. The mounting bracket 8 covers the flange portion 32 and the spring member 7 of the rotating body 3 housed in the accommodating portion 24 of the substrate 2.

The rotation-operated electronic component 1 according to the present embodiment includes a substrate 2, a rotating body 3, a plurality of terminals 4, a contact plate 5, a sliding member 6, and a spring member 7. The substrate 2 is a resin molded body and has an annular accommodating portion 24. The rotating body 3 is a resin molded body, has an annular flange portion 32 accommodated in the accommodating portion 24, and is rotatable with respect to the substrate 2. The plurality of terminals 4 are held on the substrate 2. The contact plate 5 is electrically connected to each of the plurality of terminals 4, and a plurality of contacts (first contact plate 51, second contact plate 52) arranged on the bottom surface (upper surface of the bottom wall 22) of the accommodating portion 24. And a third contact plate 53). The sliding member 6 is located between the contact plate 5 and the flange portion 32, and slides on the bottom surface of the accommodating portion 24 as the rotating body 3 rotates, and has a plurality of sliders 61 that come into contact with the contacts. Have. The sliding member 6 is an annular shape having an outer peripheral portion 62 located outside the plurality of sliders 61. The substrate 2 has a holding portion 224 (see FIGS. 5B, 5C and 6) that protrudes from the bottom surface of the accommodating portion 24 toward the sliding member 6 and holds the outer peripheral portion 62 of the sliding member 6. In the sliding member 6, the outer peripheral portion 62 of the sliding member 6 is sandwiched between the flange portion 32 of the rotating body 3 and the holding portion 224 of the base 2, and is in the direction of the rotation axis Ax1 (see FIG. 4) of the rotating body 3. It is held so that its movement in the vertical direction is restricted. As a result, the rotation-operated electronic component 1 according to the present embodiment can prevent the electrical connection between the plurality of contacts of the contact plate 5 and the slider 61 of the sliding member 6 from becoming unstable. It will be possible.

(2) Details Next, the details of each component of the rotation-operated electronic component 1 according to the present embodiment will be described with reference to FIGS. 1 to 9B.

As described above, the rotation-operated electronic component 1 according to the present embodiment includes a substrate 2, a rotating body 3, a plurality of terminals 4, a contact plate 5, a sliding member 6, and a spring member 7. A metal fitting 8 is provided.

The substrate 2 is a resin molded body and has electrical insulation. The substrate 2 includes the shaft portion 21, the bottom wall 22, and the outer wall 23 described above. As described above, the shape of the shaft portion 21 is a circular tube whose axial direction is the vertical direction. The bottom wall 22 has a disk shape having a diameter larger than that of the shaft portion 21. In the center of the bottom wall 22, a circular hole 220 (see FIG. 3) connected to the internal space of the shaft portion 21 is provided. That is, the shaft portion 21 rises upward from the inner end (periphery of the hole 220) of the bottom wall 22. Further, the outer wall 23 rises upward (in the same direction as the shaft portion 21) from the outer end of the bottom wall 22. The inner diameter of the outer side wall 23 is larger than the outer diameter of the shaft portion 21. The outer side wall 23 surrounds the shaft portion 21 over the entire circumference and is arranged coaxially with the shaft portion 21. Further, the protruding length of the outer wall 23 from the bottom wall 22 is shorter than the protruding length of the shaft portion 21 from the bottom wall 22. In the rotation-operated electronic component 1, the above-mentioned accommodating portion 24 is configured by a bottom wall 22, an outer wall 23, and a portion of the shaft portion 21 facing the outer wall 23.

Further, as shown in FIGS. 5A to 5C and FIG. 6, the substrate 2 further includes a holding portion 224 and a recessed portion 225. The holding portion 224 includes a protruding wall protruding upward (sliding member 6 side) from the upper surface of the bottom wall 22 of the substrate 2. In the rotation-operated electronic component 1, the holding portion 224 is provided over the entire circumference of the accommodating portion 24, as shown in FIG. The shape of the holding portion 224 is annular in the top view. As shown in FIGS. 5B and 5C, the holding portion 224 sandwiches the outer peripheral portion 62 of the sliding member 6 with the flange portion 32 of the rotating body 3. This makes it possible to regulate the movement of the sliding member 6 in the vertical direction (the direction of the rotation axis Ax1 of the rotating body 3). The recess 225 is provided outside the holding portion 224. More specifically, the recess 225 is provided between the holding portion 224 and the inner peripheral surface of the outer wall 23 in the radial direction of the shaft portion 21 of the substrate 2. Similar to the holding portion 224, the recess 225 is provided over the entire circumference of the accommodating portion 24 (see FIG. 6). That is, the shape of the recess 225 is an annular shape in the top view, and the recess 225 is provided along the rotation direction of the rotating body 3. In the rotation-operated electronic component 1, as shown in FIGS. 5B and 5C, the outer edge of the outer peripheral portion 62 of the sliding member 6 is located in the recess 225 of the substrate 2 in the top view. In other words, the outer edge of the outer peripheral portion 62 of the sliding member 6 is located between the holding portion 224 and the inner peripheral surface of the outer wall 23 in the radial direction of the shaft portion 21 of the substrate 2. As a result, it is possible to prevent the inner peripheral surface of the outer wall 23 from being scraped by the outer edge of the outer peripheral portion 62 of the sliding member 6 coming into contact with the inner peripheral surface of the outer wall 23 of the substrate 2.

Further, in the substrate 2, a plurality of (for example, four) first grooves 25 and a plurality of (for example, two) second grooves 26 are provided on the outer peripheral surface of the outer wall 23. The plurality of first grooves 25 are arranged at equal intervals along the circumferential direction of the outer wall 23. Further, the plurality of second grooves 26 are arranged at equal intervals along the circumferential direction of the outer wall 23. The plurality of first grooves 25 are grooves corresponding to the plurality of coupling pieces 82 of the mounting bracket 8. The plurality of second grooves 26 are grooves corresponding to the plurality of leg pieces 83 of the mounting bracket 8. Each of the plurality of first grooves 25 is formed in an L shape from the outer peripheral surface of the outer wall 23 to the lower surface (bottom surface) of the bottom wall 22. In the rotation-operated electronic component 1, the mounting bracket 8 is attached to the substrate 2 by fitting each of the plurality of coupling pieces 82 into the corresponding first groove 25 of the plurality of first grooves 25. At this time, the plurality of leg pieces 83 are fitted into the corresponding second grooves 26 among the plurality of second grooves 26.

The rotating body 3 is a resin molded body and has electrical insulation. As described above, the rotating body 3 includes a cylindrical portion 31 and a flange portion 32. As described above, the shape of the cylindrical portion 31 is a cylindrical shape whose axial direction is the vertical direction. The inner diameter of the cylindrical portion 31 is larger than the outer diameter of the shaft portion 21 of the substrate 2. The cylindrical portion 31 is arranged so as to surround the shaft portion 21 of the substrate 2. The flange portion 32 projects radially outward from the cylindrical portion 31 from one end (lower end) in the axial direction of the cylindrical portion 31. The flange portion 32 is provided over the entire circumference of the cylindrical portion 31. The flange portion 32 is arranged in the accommodating portion 24 of the substrate 2. In the rotation-operated electronic component 1, since the shaft portion 21 of the base 2 is arranged inside the cylindrical portion 31 of the rotating body 3, the rotating body 3 can rotate with the shaft portion 21 of the base 2 as the rotation center axis. be. Further, in the rotation-operated electronic component 1, the flange portion 32 of the rotating body 3 is spaced apart from the bottom wall 22 of the base 2 in the vertical direction (direction parallel to the axial direction of the shaft portion 21 of the base 2). Have been placed. That is, the flange portion 32 faces the bottom wall 22 of the substrate 2.

The flange portion 32 of the rotating body 3 has a plurality of convex portions 33 arranged along the circumferential direction of the flange portion 32 on the upper surface which is a surface facing the spring member 7. The plurality of convex portions 33 are arranged at equal intervals along the circumferential direction of the flange portion 32. The plurality of convex portions 33 are provided over the entire circumference of the flange portion 32. A concave portion 34 is provided between two adjacent convex portions 33 among the plurality of convex portions 33. That is, the flange portion 32 has an uneven surface 35 in which the convex portion 33 and the concave portion 34 are repeated in the circumferential direction of the flange portion 32 (see FIG. 2).

Further, the flange portion 32 of the rotating body 3 has a plurality of (for example, five) protrusions 322 arranged along the circumferential direction of the flange portion 32 on the lower surface of the surface facing the sliding member 6. The shape of each of the plurality of protrusions 322 is cylindrical. Each of the plurality of protrusions 322 has a tip portion 3221. The shape of the tip portion 3221 is conical.

As shown in FIG. 7, the contact plate 5 includes a first contact plate 51, a second contact plate 52, and a third contact plate 53. The shapes of the first contact plate 51, the second contact plate 52, and the third contact plate 53 are arcuate. The first contact plate 51, the second contact plate 52, and the third contact plate 53 are arranged on the same circumference while being held by the substrate 2. The first contact plate 51 has a plurality of (for example, two) through holes 511 that penetrate in the thickness direction (vertical direction) of the first contact plate 51. The shape of each of the plurality of through holes 511 is rectangular. The plurality of through holes 511 are arranged along the longitudinal direction of the first contact plate 51. The second contact plate 52 has a plurality of (for example, two) through holes 521 penetrating in the thickness direction (vertical direction) of the second contact plate 52. The shape of each of the plurality of through holes 521 is rectangular. The plurality of through holes 521 are arranged along the longitudinal direction of the second contact plate 52. In the present embodiment, a plurality of contacts are configured by the first contact plate 51, the second contact plate 52, and the third contact plate 53.

The contact plate 5 is electrically connected to the three terminals 4. In the following, of the three terminals 4, the terminal 4 electrically connected to the first contact plate 51 is the first terminal 41, and the terminal 4 electrically connected to the second contact plate 52 is the second terminal. 42, the terminal 4 electrically connected to the third contact plate 53 is also referred to as a third terminal 43. The first contact plate 51 and the first terminal 41 are integrally formed by one conductive plate. The second contact plate 52 and the second terminal 42 are integrally formed by one conductive plate. The third contact plate 53 and the third terminal 43 are integrally formed by one conductive plate. The three terminals 4 and the contact plate 5 are insert-molded on the substrate 2.

Here, in the rotation-operated electronic component 1, as shown in FIG. 6, a part of the contact plate 5 (first contact plate 51, second contact plate 52, and third contact plate 53) is a housing portion 24 in the substrate 2. Is exposed from the bottom surface (upper surface of the bottom wall 22). In the rotation-operated electronic component 1, the exposed surface of the contact plate 5 and the bottom surface of the accommodating portion 24 are flush with each other.

As shown in FIGS. 2, 3, 8 and 9A, the sliding member 6 includes a plurality of (for example, five) sliders 61 and an outer peripheral portion 62. The plurality of sliders 61 and the outer peripheral portion 62 are integrally formed by one conductive plate. As shown in FIG. 8, the shape of the outer peripheral portion 62 is annular in the top view. That is, the outer peripheral portion 62 of the sliding member 6 is configured to come into contact with the holding portion 224 of the substrate 2 over the entire circumference when the rotating body 3 is rotated. The plurality of sliders 61 are arranged at equal intervals along the circumferential direction of the outer peripheral portion 62 on the inner peripheral edge of the outer peripheral portion 62. Each of the plurality of sliders 61 has a first contact portion 611 and a second contact portion 612, as shown in FIGS. 8 and 9A. The shape of each of the first contact portion 611 and the second contact portion 612 is a rod shape long in one direction. Each of the plurality of sliders 61 has a bifurcated fork shape in which one end in the longitudinal direction of the first contact portion 611 and the second contact portion 612 is released. The first contact portion 611 and the second contact portion 612 are arranged in the radial direction of the outer peripheral portion 62. In the rotation-operated electronic component 1, the distance between the first contact portion 611 and the cylindrical portion 31 of the rotating body 3 is shorter than the distance between the second contact portion 612 and the cylindrical portion 31 in the radial direction of the outer peripheral portion 62. The first contact portion 611 and the second contact portion 612 are configured to be in contact with the contact plate 5 by the elastic force from the spring member 7. The shape of the tip of each of the first contact portion 611 and the second contact portion 612 is U-shaped when viewed from the radial direction of the outer peripheral portion 62. In each of the plurality of sliders 61, the first contact portion 611 and the second contact portion 612 are inclined in a direction approaching the contact plate 5.

The sliding member 6 further has a plurality (for example, eight) through holes 63. The plurality of through holes 63 are arranged along the circumferential direction of the outer peripheral portion 62. In the rotation-operated electronic component 1, each of the plurality (for example, five) protrusions 322 protruding downward from the surface facing the sliding member 6 in the flange portion 32 of the rotating body 3 is formed by the plurality of through holes 63. The sliding member 6 is positioned with respect to the rotating body 3 by passing it through the corresponding through hole 63 (see FIG. 9A). That is, the rotating body 3 has a protrusion 322 protruding downward (on the sliding member 6 side) from the facing surface 321 of the flange portion 32 with the sliding member 6.

Here, in a state where each of the plurality of protrusions 322 is passed through the corresponding through hole 63 among the plurality of through holes 63, as shown in FIG. 5B, the tip portion 3221 of each protrusion 322 is more than the sliding member 6. Is also located on the lower side. Then, in this state, as shown in FIG. 9B, the outer edge of each tip portion 3221 is located inside the corresponding through hole 63 in the bottom view. When the shape of each tip portion 3221 is conical as in the present embodiment, the outer diameter of each tip portion 3221 is smaller than the inner diameter of the corresponding through hole 63.

In the rotation-operated electronic component 1, each of the first contact portion 611 and the second contact portion 612 of each of the plurality of sliders 61 has a first contact plate 51 and a second contact plate as the rotating body 3 rotates. It can come into contact with either the 52 or the third contact plate 53. Further, each of the first contact portion 611 and the second contact portion 612 of the plurality of sliders 61 is in contact with any of the first contact plate 51, the second contact plate 52, and the third contact plate 53. In the absence state, it is in contact with the bottom surface (the surface of the bottom wall 22) of the accommodating portion 24 of the substrate 2. In short, each of the first contact portion 611 and the second contact portion 612 of the plurality of sliders 61 has a first contact plate 51, a second contact plate 52, a third contact plate 53, and a bottom wall 22 of the base 2. Can move while sliding on the surface of.

The spring member 7 is formed of, for example, a metal plate. The spring member 7 includes an annular leaf spring portion 71, a click protrusion 72, and a plurality (for example, two) fixing portions 73. The click protrusion 72 and the plurality of fixing portions 73 are integrally formed with the leaf spring portion 71. The plurality of fixing portions 73 are provided at positions facing each other in the circumferential direction of the leaf spring portion 71. Each of the plurality of fixing portions 73 projects outward from the outer peripheral edge of the leaf spring portion 71. Each of the plurality of fixing portions 73 has a plurality of (for example, two) holes 731 penetrating in the thickness direction (vertical direction) of the fixing portion 73. Each of the plurality of protrusions 841 (see FIG. 3) protruding downward from the lower surface of the corresponding protrusion 84 among the plurality of protrusions 84 of the mounting bracket 8 is passed through each of the plurality of holes 731. Then, the spring member 7 is fixed to the mounting bracket 8 by crimping (plastically deforming) the tips of the plurality of protrusions 841 passed through the plurality of holes 731. The click protrusion 72 is provided between the plurality of fixing portions 73 in the circumferential direction of the leaf spring portion 71. The click protrusion 72 is curved downward (on the flange portion 32 side of the rotating body 3). The click protrusion 72 can enter and exit each of the concave portions 34 between the two adjacent convex portions 33 among the plurality of convex portions 33 provided on the flange portion 32 of the rotating body 3. The spring member 7 is housed in the housing portion 24 of the substrate 2 in a state of being fixed to the mounting bracket 8.

The spring member 7 generates an elastic force in a direction that brings the rotating body 3 closer to the base 2 in the vertical direction (direction parallel to the axial direction of the shaft portion 21 of the base 2). In the rotation-operated electronic component 1, the spring member 7 is housed in the housing portion 24 of the base 2, and is covered by the mounting bracket 8, and the flange portion 32 of the rotating body 3 is housed in the base 2 in the vertical direction. It is configured to exert an elastic force in a direction approaching the bottom surface of the portion 24.

The mounting bracket 8 is formed of, for example, a steel plate. The mounting bracket 8 includes an annular metal fitting body 81, a plurality of (for example, four) connecting pieces 82, a plurality of (for example, two) leg pieces 83, and a plurality of (for example, two) protruding pieces 84. , Equipped with. Each of the plurality of coupling pieces 82 and the plurality of leg pieces 83 projects downward (on the side of the base 2) from the outer peripheral edge of the metal fitting body 81. As shown in FIG. 1, each of the plurality of bonding pieces 82 is the corresponding first of the plurality of first grooves 25 formed so as to straddle the outer peripheral surface of the outer wall 23 of the substrate 2 and the lower surface of the bottom wall 22. It fits in the groove 25. The plurality of connecting pieces 82 are arranged at equal intervals along the circumferential direction of the metal fitting body 81. Further, as shown in FIG. 1, each of the plurality of leg pieces 83 fits into the corresponding second groove 26 among the plurality of second grooves 26 formed on the outer peripheral surface of the outer wall 23 of the substrate 2. In FIG. 1, each of the plurality of bonding pieces 82 is bent in an L shape, but extends linearly before fixing the mounting bracket 8 to the substrate 2, and the tip portion is crimped to form the substrate 2. It is fixed. More specifically, in a state where the accommodating portion 24 of the substrate 2 is covered with the metal fitting body 81 and a part of each connecting piece 82 is fitted into a part of the first groove 25, the remaining part of each connecting piece 82 is formed. The mounting bracket 8 can be fixed to the substrate 2 by bending so as to fit into the remaining portion of the 1 groove 25. Each of the plurality of projecting pieces 84 projects outward from the outer peripheral edge of the metal fitting body 81. Each of the plurality of protrusions 84 has a plurality of (eg, two) protrusions 841. The plurality of protrusions 841 project downward from the lower surface of the protrusion 84.

(3) Operation Next, the operation of the rotation-operated electronic component 1 according to the present embodiment will be described.

In the rotation-operated electronic component 1 according to the present embodiment, when the rotating body 3 is rotated with respect to the substrate 2, the flange portion 32 rotates together with the cylindrical portion 31. Therefore, in the rotation-operated electronic component 1, the flange portion 32 rotates while the click protrusion 72 of the spring member 7 is pressed against the flange portion 32, so that the amount of elastic deformation of the spring member 7 changes, and the click protrusion The pressing force (elastic force) of 72 against the flange portion 32 changes. As a result, in the rotation-operated electronic component 1, the user can obtain a click feeling when the click protrusion 72 is inserted into the recess 34 in the flange portion 32. When the click protrusion 72 is in the recess 34, the position of the rotating body 3 can be maintained at a desired rotation position. In the rotary operation type electronic component 1 which is a rotary encoder, the contact plate 5 (the first contact plate 51, the second contact plate 52, and the third contact plate 53) depends on the amount of rotation of the rotating body 3 from the reference position of the rotating body 3. ) And the sliding member 6 (each slider 61) changes, thereby changing the output signals from the plurality of terminals 4.

In the rotation-operated electronic component 1, since the shaft portion 21 is a circular tube, a switch (for example, a push switch) and a light emitting element mounted together with the rotation-operated electronic component 1 on a printed wiring board on which the rotation-operated electronic component 1 is mounted. (For example, an LED) or the like can be arranged inside the shaft portion 21.

By the way, in the rotary electric component described in Patent Document 1 described above, since a plurality of sliders in contact with a plurality of patterns are provided on the outer peripheral portion of the annular portion, the plurality of holes provided in the annular portion are provided. The sliding member is attached to the operation shaft by deforming a plurality of attachment pieces provided on the flange portion of the operation shaft that have been inserted by heat or the like. Therefore, in the conventional rotary electric component, there is a possibility that the sliding member may loosen with respect to the operation shaft due to the plurality of mounting pieces of the operation shaft being softened by heat at the time of mounting on the printed wiring board or the like by reflow. As a result, the electrical connection of the plurality of sliders to the plurality of patterns may become unstable. That is, in the conventional rotary electric component, the contact load of a plurality of sliders for a plurality of patterns may become unstable.

On the other hand, in the rotation-operated electronic component 1 according to the present embodiment, a plurality of sliders 61 are provided on the inner peripheral edge of the outer peripheral portion 62, and the holding portion 224 provided on the accommodating portion 24 of the substrate 2 is provided. The sliding member 6 is held by sandwiching the outer peripheral portion 62 between the flange portion 32 and the flange portion 32 of the rotating body 3. This makes it possible to keep the distance between the contact plate 5 and the sliding member 6 constant. In particular, when the holding portion 224 of the substrate 2 is provided over the entire circumference of the accommodating portion 24 as in the present embodiment, the distance between the contact plate 5 and the sliding member 6 is constant over the entire circumference. It will be possible to keep. As a result, the electrical connection between the plurality of contacts of the contact plate 5 (first contact plate 51, second contact plate 52, and third contact plate 53) and the plurality of sliders 61 of the sliding member 6 is unstable. It is possible to suppress such a situation. That is, in the rotation-operated electronic component 1 according to the present embodiment, it is possible to stabilize the contact load of the plurality of sliders 61 on the contact plate 5.

Further, in the rotation-operated electronic component 1 according to the present embodiment, as shown in FIG. 9A, the outer diameter D1 of the flange portion 32 of the rotating body 3 is larger than the outer diameter D2 of the sliding member 6. As a result, the entire sliding member 6 is covered with the flange portion 32, and as a result, the sliding member 6 can be protected by the flange portion 32.

Further, in the rotation-operated electronic component 1 according to the present embodiment, as described above, each of the plurality of protrusions 322 provided on the surface facing the sliding member 6 in the flange portion 32 of the rotating body 3 slides. The tip portion 3221 of each protrusion 322 is located inside the through hole 63 in a state of being passed through the corresponding through hole 63 among the plurality of through holes 63 provided in the moving member 6. That is, in the rotary operation type electronic component 1 according to the present embodiment, each protrusion 322 is only passed through the corresponding through hole 63, and each of them is similar to the rotary electric component described in Patent Document 1 described above. The tip portion 3221 of the protrusion 322 is not crimped. Therefore, the rotary operation type electronic component 1 can improve the assembly workability as compared with the rotary type electric component described in Patent Document 1.

(4) Modifications The above embodiment is only one of the various embodiments of the present disclosure. The above-described embodiment can be variously modified depending on the design and the like as long as the object of the present disclosure can be achieved. Hereinafter, modified examples of the above-described embodiment will be listed. The modifications described below can be applied in combination as appropriate.

In the above-described embodiment, the rotary operation type electronic component 1 is a rotary encoder, but the present invention is not limited to this. The rotation-operated electronic component 1 may be, for example, a rotary switch, a variable resistor, or the like. When the rotation-operated electronic component 1 is a rotary switch, the conduction state and the non-conduction state between the plurality of terminals 4 are changed according to the rotation amount of the rotating body 3. When the rotation-operated electronic component 1 is a variable resistor, the resistance value between the plurality of terminals 4 is changed according to the amount of rotation of the rotating body 3.

In the above-described embodiment, as shown in FIG. 8, the holding portion 224 is provided over the entire circumference of the accommodating portion 24, but the holding portion 224 is divided into a plurality of portions along the circumferential direction of the accommodating portion 24. May be good. As a result, it is possible to reduce the frictional resistance between the holding portion 224 of the substrate 2 and the sliding member 6 when the rotating body 3 is rotated, as compared with the case where the holding portion 224 is provided over the entire circumference of the accommodating portion 24. Will be.

In the above-described embodiment, as shown in FIG. 8, the recess 225 is provided over the entire circumference of the accommodating portion 24, but the recess 225 may be divided into a plurality of portions along the circumferential direction of the accommodating portion 24. ..

In the above-described embodiment, the holding portion 224 is provided integrally with the bottom wall 22 of the substrate 2, but the holding portion 224 may be a separate body from the bottom wall 22.

In the above-described embodiment, the outer diameter D1 of the flange portion 32 of the rotating body 3 is larger than the outer diameter D2 of the sliding member 6, but the present invention is not limited to this. For example, the outer diameter of the flange portion 32 of the rotating body 3 and the outer diameter of the sliding member 6 may be the same, or the outer diameter of the sliding member 6 is larger than the outer diameter of the flange portion 32 of the rotating body 3. It may be large.

In the above-described embodiment, the rotation-operated electronic component 1 has a configuration in which the rotating body 3 is directly rotated by the user, but the present invention is not limited to this. The rotation-operated electronic component 1 may include, for example, an operation knob (not shown). In this case, the operation knob is attached to, for example, the cylindrical portion 31 of the rotating body 3 and is rotated by the user. Here, as described above, when the light emitting element is housed inside the shaft portion 21, the operation knob is preferably made of a material having light transmission.

In the above-described embodiment, the shape of each of the plurality of protrusions 322 provided on the flange portion 32 of the rotating body 3 is cylindrical, but the present invention is not limited to this. The shape of each protrusion 322 may be, for example, a prismatic shape or an elliptical columnar shape. Further, the shape of the plurality of through holes 63 provided in the sliding member 6 through which the plurality of protrusions 322 are passed is not limited to a circular shape, and may be, for example, a quadrangular shape or an elliptical shape. May be good.

(Aspect)
The following aspects are disclosed from the embodiments and modifications described above.

The rotation-operated electronic component (1) according to the first aspect includes a substrate (2), a rotating body (3), a plurality of terminals (4), a contact plate (5), and a sliding member (6). And. The substrate (2) has an annular accommodating portion (24). The rotating body (3) has an annular flange portion (32) accommodated in the accommodating portion (24) and is rotatable with respect to the substrate (2). The plurality of terminals (4) are held on the substrate (2). The contact plate (5) is electrically connected to each of the plurality of terminals (4), and a plurality of contacts (51, 52, 53) arranged on the bottom surface (upper surface of the bottom wall 22) of the accommodating portion (24). ). The sliding member (6) is located between the contact plate (5) and the flange portion (32), and slides on the bottom surface of the accommodating portion (24) as the rotating body (3) rotates to form a contact. It has a plurality of sliders (61) that come into contact with (51, 52, 53). The sliding member (6) is an annular shape having an outer peripheral portion (62) located outside the plurality of sliders (61). The substrate (2) has a holding portion (224) that protrudes from the bottom surface of the accommodating portion (24) toward the sliding member (6) and holds the outer peripheral portion (62) of the sliding member (6). The sliding member (6) rotates with the outer peripheral portion (62) of the sliding member (6) sandwiched between the flange portion (32) of the rotating body (3) and the holding portion (224) of the substrate (2). The movement of the body (3) in the vertical direction, which is the direction of the rotation axis (Ax1), is maintained.

According to this aspect, even after mounting on a printed wiring board or the like by reflow, a sliding member is formed between the flange portion (32) of the rotating body (3) and the holding portion (224) of the substrate (2). By sandwiching the outer peripheral portion (62) of (6), it is possible to restrict the movement of the sliding member (6) in the vertical direction. This makes it possible to keep the distance between the contact plate (5) and the sliding member (6) constant, and as a result, the plurality of contacts (51, 52, 53) and the sliding member of the contact plate (5). It is possible to prevent the electrical connection with the plurality of sliders (61) of (6) from becoming unstable.

In the rotation-operated electronic component (1) according to the second aspect, in the first aspect, the holding portion (224) is provided over the entire circumference of the accommodating portion (24).

According to this aspect, it is possible to restrict the vertical movement of the outer peripheral portion (62) of the sliding member (6) over the entire circumference of the accommodating portion (24).

In the rotation-operated electronic component (1) according to the third aspect, in the first or second aspect, when the outer peripheral portion (62) of the sliding member (6) is rotated by the rotating body (3). , Contact the holding portion (224) of the substrate (2) over the entire circumference.

According to this aspect, it is possible to restrict the vertical movement of the outer peripheral portion (62) of the sliding member (6) over the entire circumference of the accommodating portion (24).

In the rotation-operated electronic component (1) according to the fourth aspect, in any one of the first to third aspects, the substrate (2) has a rotating body (24) outside the holding portion (224). A recess (225) is provided along the rotation direction of 3). In top view, the outer edge of the outer peripheral portion (62) of the sliding member (6) is located in the recess (225) of the substrate (2).

According to this aspect, it is possible to prevent the substrate (2) from being scraped by the sliding member (6) coming into contact with the inner peripheral surface of the outer wall (23) of the substrate (2).

In the rotation-operated electronic component (1) according to the fifth aspect, in any one of the first to fourth aspects, the rotating body (3) is the sliding member (6) in the flange portion (32). It has a protrusion (322) protruding downward on the sliding member (6) side from the facing surface (321) of the above. The protrusion (322) is inserted into a through hole (63) provided in the sliding member (6) and has a tip portion (3221) located below the sliding member (6). In the bottom view, the outer edge of the tip end portion (3221) of the protrusion (322) is located inside the through hole (63).

According to this aspect, by inserting the protrusion (322) of the rotating body (3) into the through hole (63) of the sliding member (6), the rotating body (3) becomes a rotating body (3) in the rotation direction of the rotating body (3). On the other hand, the sliding member (6) can be positioned.

In the rotation-operated electronic component (1) according to the sixth aspect, in any one of the first to fifth aspects, the outer diameter (D1) of the flange portion (32) is the sliding member (6). It is larger than the outer diameter (D2).

According to this aspect, it is possible to protect the sliding member (6) by the flange portion (32).

The configuration according to the second to fifth aspects is not an essential configuration for the rotation-operated electronic component (1), and can be omitted as appropriate.

1 Rotational operation type electronic component 2 Base 21 Shaft 24 Storage 224 Holding 225 Recess 3 Rotating body 32 Flange 322 Protrusion 3221 Tip 4 Terminal 5 Contact plate 51 First contact plate (contact)
52 Second contact plate (contact)
53 Third contact plate (contact)
6 Sliding member 61 Sliding element 62 Outer peripheral part 63 Through hole 7 Spring member 8 Mounting bracket Ax1 Rotating shaft D1, D2 Outer diameter

Claims (6)

A substrate which is a resin molded body and has an annular accommodating portion,
A rotating body which is a resin molded body and has an annular flange portion accommodated in the accommodating portion and is rotatable with respect to the substrate.
A plurality of terminals held on the substrate and
A contact plate electrically connected to each of the plurality of terminals and having a plurality of contacts arranged on the bottom surface of the accommodating portion, and a contact plate having a plurality of contacts.
A sliding member located between the contact plate and the flange portion, having a plurality of sliders that slide on the bottom surface of the accommodating portion as the rotating body rotates and come into contact with the contacts. When,
Equipped with
The sliding member is an annular shape having an outer peripheral portion located outside the plurality of sliders.
The substrate has a holding portion that protrudes from the bottom surface of the accommodating portion toward the sliding member and holds the outer peripheral portion of the sliding member.
In the sliding member, the outer peripheral portion of the sliding member is sandwiched between the flange portion of the rotating body and the holding portion of the substrate, and the sliding member moves in the vertical direction, which is the rotation axis direction of the rotating body. Retained to be regulated,
Rotational operation type electronic components. The holding portion is provided over the entire circumference of the accommodating portion.
The rotation-operated electronic component according to claim 1. The outer peripheral portion of the sliding member comes into contact with the holding portion of the substrate over the entire circumference when the rotating body is rotated.
The rotation-operated electronic component according to claim 1 or 2. The substrate is provided with a recess on the outside of the holding portion along the rotation direction of the rotating body.
In top view, the outer edge of the outer peripheral portion of the sliding member is located in the recess of the substrate.
The rotation-operated electronic component according to any one of claims 1 to 3. The rotating body has a protrusion that protrudes downward on the sliding member side from the surface of the flange portion facing the sliding member.
The protrusion is inserted into a through hole provided in the sliding member and has a tip portion located below the sliding member.
In bottom view, the outer edge of the tip of the protrusion is located inside the through hole.
The rotation-operated electronic component according to any one of claims 1 to 4. The outer diameter of the flange portion is larger than the outer diameter of the sliding member.
The rotation-operated electronic component according to any one of claims 1 to 5.

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