JP4521045B2 - Electronic components - Google Patents

Description

  The present invention relates to an electronic component that can be mounted on an edge portion of a printed circuit board, and more particularly to an electronic component suitable for a lateral push type push switch.

2. Description of the Related Art Conventionally, as a lateral push type push switch, an electronic component mounted on a notch formed on an edge of a printed board has been proposed (for example, see Patent Document 1). In this electronic component, the external lead-out terminal is made of a conductive metal piece, and is formed by bending in multiple stages along the outer surface of the guide wall portion of the housing. The guide wall is formed with an inclined surface to absorb variations due to the spring back when the external lead-out terminal is bent.
JP 2007-305384 A

  However, in the conventional electronic parts as described above, variations due to the springback occur variously based on the material characteristics of the conductive metal piece, etc., and therefore cannot be absorbed uniformly on the inclined surface and mounted. There is a problem that the electronic component before being inclined is inclined and cannot be appropriately mounted on the printed circuit board.

  The present invention has been made in view of such circumstances, and an object thereof is to provide an electronic component that can be appropriately mounted on a printed circuit board.

The electronic component of the present invention has a housing in which an opening is formed on the front surface and a terminal member is led out rearward, and a pair of board mounting pieces at positions corresponding to the side surfaces of the housing. An electronic component mounted on a notch formed at an edge of the printed board by the terminal member and the board mounting piece, and fixed to the printed board. The lower end surface of the board mounting piece is provided with an inclination in which the rear end portion of the lower end surface is disposed above the reference surface formed by the flat surface portion, and the terminal member faces the surface of the printed board. While the flat part which contacts is formed, the said board attachment piece was made into the shape which accept | permits the surface contact with respect to the said printed circuit board of the said flat part.

According to the electronic component described above, the printed circuit board is cut by the terminal member having a planar portion that is in surface contact with the surface of the printed circuit board and the board mounting piece having a shape that allows the planar contact of the planar portion of the terminal member to the printed circuit board. Since it is mounted on the notch, it can be mounted on the printed circuit board with the flat surface of the terminal member as a reference. It can be implemented.
Further, since the rear end portion of the lower end surface of the board mounting piece is disposed above the reference surface formed by the flat portion of the terminal member, the lower end surface of the board mounting piece is a printed circuit board formed by the flat portion of the terminal member. It is possible to prevent a situation of contact prior to surface contact with respect to the surface, and to reliably allow surface contact with the printed circuit board of the flat portion of the terminal member.

  In particular, in the electronic component, it is preferable that the front end portion of the lower end surface of the board mounting piece is disposed at a position on the reference surface. In this case, since the flat surface portion of the terminal member and the front end portion of the lower end surface of the board mounting piece are in contact with the surface of the printed circuit board, the flat surface portion of the terminal member is more reliably attached to the surface of the printed circuit board. Surface contact is possible.

  Moreover, in the said electronic component, it is preferable to solder and fix the whole range of the lower end surface of the said board attachment piece to the said printed circuit board. Thus, by soldering and fixing the entire lower end surface of the board mounting piece to the printed board, it is possible to ensure the mounting strength of the electronic component on the printed board even when the lower end face of the board mounting piece is inclined. It becomes possible.

  According to the present invention, a printed circuit board notch is formed by a terminal member having a flat portion that is in surface contact with the surface of the printed circuit board, and a substrate mounting piece having a shape that allows surface contact of the flat surface portion of the terminal member with the printed circuit board. Since it can be mounted on the printed circuit board with reference to the flat surface of the terminal member, it can prevent the electronic component from tilting due to interference with the printed circuit board mounting piece, and can be mounted on the printed circuit board appropriately. It becomes possible to do.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of a push switch composed of electronic components according to the present embodiment. 2 and 3 are a perspective view and a side view of the push switch according to the present embodiment. In the following, the left side in FIG. 1 is referred to as the front side of the push switch, and the right side in FIG. 1 is referred to as the rear side of the push switch.

  The electronic component according to the present embodiment constitutes a lateral push type push switch 1 mounted in a notch formed at an edge of a printed circuit board to be described later. For example, the push switch 1 is applied as a shutter button of a mobile phone with a camera function, but is not limited thereto. Any device that requires a double-action type push switch that operates in two stages can be applied.

  As shown in FIG. 1, the push switch 1 is housed in a synthetic resin housing 2 having an opening 21 on the front surface, a plurality of terminal members 3 formed in the housing 2 by insert molding, and an internal space of the housing 2. The movable contact plate 4, the insulating sheet 5, the click feeling plate 6, the operation member 7 that can be moved back and forth in the internal space of the housing 2, and the frame 8 that is attached to the housing 2 and prevents the operation member 7 from falling off. The central fixed contact 9 and the external fixed contact 10 disposed on the inner bottom of the housing 2 are mainly configured.

  As shown in FIG. 1, a guide wall portion 22 a is provided on the side surface of the housing 2 so as to protrude laterally at an upper portion thereof. A concave portion 22b is formed at the rear side end portion of the guide wall portion 22a to be engaged with an engaging claw 86 of the frame 8 described later. Further, a recess 23 is formed at the lower end of the side surface of the housing 2 to engage with an engaging claw 87 of the frame 8 described later. Inclined surfaces 22c and 23a are provided on the rear surfaces of the recess 22b and the recess 23 (the inclined surfaces 22c and 23a are not shown in FIG. 1, refer to FIG. 3). Furthermore, a pair of engaging projections 24 projecting forward are provided slightly inside the push switch 1 with respect to the guide wall 22a. These inclined surfaces 22 c and 23 a and the engaging projection 24 are all for positioning the frame 8.

  A concave portion 25 having a generally circular shape is formed on the bottom surface of the internal space of the housing 2. A central fixed contact 9 is embedded in the center of the recess 25, and a pair of external fixed contacts 10 are embedded on the side of the central fixed contact 9. Corresponding terminal members 3 are led out from the rear surface of the push switch 1 to the rear side from the central fixed contact 9 and the external fixed contact 10 (see FIG. 4). The configuration of the terminal member 3 will be described later.

  Around the recess 25, a flat portion 26 is formed that is disposed at a position ahead of the recess 25. The flat portion 26 is a portion to which a part of the insulating sheet 5 is attached and fixed. A slit portion 27 is formed at a position on the side of the recess 25 and between the flat portions 26. The slit portion 27 is provided on the same plane as the concave portion 25. A holding piece 28 that holds an arm portion 42 of the movable contact plate 4 described later is provided at the end of the slit portion 27. The holding piece 28 is disposed at a position slightly ahead of the bottom surface of the recess 25, and is disposed at a position slightly rearward of the flat portion 26. At the positions above and below the holding piece 28, a holding table 29 is formed that is disposed at a position ahead of the flat portion 26. The holding table 29 is a portion that holds the end portion of the click feeling plate 6.

  The movable contact plate 4 is configured by a leaf spring, and contacts the central fixed contact 9 and the external fixed contact 10 embedded in the bottom surface of the housing 2 in response to a pressing operation on the operation member 7 to form a predetermined conduction state. Is. The movable contact plate 4 generates a click feeling in response to a pressing operation on the operation member 7. The movable contact plate 4 has a circular portion 41 and a pair of arm portions 42. The circular portion 41 has a dome shape that is slightly bulged forward. The arm portion 42 is formed to extend laterally from an opposing position on the outer periphery of the circular portion 41.

  The insulating sheet 5 has a shape corresponding to the outer shape of the flat portion 26 of the housing 2. An adhesive is applied to the rear surface of the insulating sheet 5 and is attached so as to cover the entire range of the movable contact plate 4 excluding a part of the tip of the arm portion 42 and is fixed to the flat portion 26. . The insulating sheet 5 plays a role as a dustproof material for preventing dust and the like from entering a contact portion composed of the movable contact plate 4 and the fixed contact 9 and the like.

  The click feeling plate 6 is composed of a leaf spring, and generates a click feeling associated with a pressing operation on the operation member 7. The click feeling plate 6 has a dome shape that is slightly bulged on the front side of the push switch 1.

  The operation member 7 is made of, for example, an insulating resin material, and includes a head portion 71, a plate-like portion 72, and a leg portion 73 (in FIG. 1, the leg portion 73 is not shown, see FIG. 4). The plate-like portion 72 has a generally rectangular shape, and a columnar head portion 71 is erected from the center of the front surface portion, and a columnar leg portion 73 is erected from the center of the rear surface portion.

  The frame 8 is formed by, for example, punching and bending a metal plate member. The frame 8 has a flat portion 81 that covers the front surface of the housing 2. The flat portion 81 is formed with a circular opening 82 through which the head portion 71 of the operation member 7 passes at the center thereof, and the engagement protrusion 24 of the housing 2 on the upper side and the side of the opening 82. An engagement hole 83 is formed to engage with. Engagement pieces 84 and 85 extending rearward are provided near the upper end and the lower end of the side end of the flat portion 81. The engaging pieces 84, 85 extend from the side of the housing 2 to the rear side, and have engaging claws 86, 87 that engage with the concave portions 22 b and the concave portions 23 of the housing 2 at the front ends thereof. The engagement piece 84 constitutes a board attachment piece attached to the printed board 11 described later.

  When the push switch 1 having such a configuration is assembled, as shown in FIG. 2, the movable contact plate 4, the insulating sheet 5, and the click feeling plate 6 are accommodated in the internal space of the housing 2, and one of the operation members 7 is accommodated. The frame 8 is attached from the front side of the push switch 1 with the portion protruding forward. At this time, in the frame 8, the engaging protrusion 24 of the housing 2 is accommodated in the engaging hole 83, and the engaging claws 86 and 87 of the engaging pieces 84 and 85 are on the rear surface side of the recessed portion 22 b and the recessed portion 23 of the housing 2. It can be folded inward. By bending the engaging claws 86 and 87 in this manner, as shown in FIG. 3, the front end surfaces of the engaging claws 86 and 87 abut against predetermined positions of the inclined surfaces 22c and 23a, and the frame 8 is a housing. 2 is fixed.

  In the push switch 1 according to the present embodiment, the engagement piece 84 of the frame 8 is configured such that the rear side width W2 is slightly shorter than the front side width W1, as shown in FIG. In the assembled state of the push switch 1, the upper end surface 84 a of the engagement piece 84 is disposed substantially parallel to the upper surface of the housing 2. Here, a surface that is parallel to the upper surface of the housing 2 and passes through the lower end portion of the base end portion of the engagement piece 84 is defined as a reference surface P1. In this case, the lower end surface 84b of the engagement piece 84 is disposed in a state where the rear side is slightly inclined upward with respect to the reference plane P1. The reason why the lower end surface 84b of the engagement piece 84 is inclined in this way is to allow surface contact with the surface of the printed board 11 of the flat portion 31 of the terminal member 3 to be described later.

  Here, the internal configuration of the push switch 1 according to the present embodiment will be described with reference to FIG. FIG. 4 is a cross-sectional view of the push switch according to the present embodiment. FIG. 4 shows a cross section of the central portion of the central fixed contact 9 of the push switch 1.

  As shown in FIG. 4, the terminal member 3 is led out from the central fixed contact 9 through the upper portion of the housing 2 to the rear surface side, bent at a fixed position to the lower side, and bent to the rear side. And the edge part extended to the back side comprises the plane part 31 which surface-contacts to the land part 112 of the printed circuit board 11 mentioned later. As shown in FIG. 3, the flat portion 31 is insert-molded so that the lower surface thereof is arranged on the same plane as the reference plane P1 when the housing 2 is manufactured.

  By configuring the flat portion 31 in this way, when the push switch 1 is mounted in a notch portion 111 of the printed board 11 described later, the engaging piece 84 comes into contact with the printed board 11 prior to the flat portion 31. Can be prevented. In FIG. 4, the terminal member 3 corresponding to the central fixed contact 9 is shown, but the terminal member 3 corresponding to the external fixed contact 10 is also led out to the outside and has a flat portion 31. .

  The insulating sheet 5 with the movable contact plate 4 attached thereto is attached and fixed to the flat portion 26 so that the movable contact plate 4 faces the central fixed contact 9 or the like embedded in the recess 25. The click feeling plate 6 is disposed on the front side of the insulating sheet 5 and is disposed so as to be placed on the holding table 29. In this case, since the click feeling plate 6 has a dome shape bulging upward, the click feeling plate 6 and the insulating sheet 5 are not pressed. A certain space is formed in.

  The operation member 7 is disposed such that the rear end portion of the leg portion 73 is in contact with the front surface of the click feeling plate 6. The frame 8 is attached to the housing 2 that houses the components up to the operation member 7 in this way. In this case, the operation member 7 is subjected to a force pushing forward by the urging force of the click feeling plate 6. In a state where the pressing operation on the operation member 7 is not performed (the state shown in FIG. 4), the operation member 7 includes a part of the head portion 71 protruding forward through the opening 82 of the frame 8, and a plate The shape portion 72 is in contact with the back surface of the frame 8 and restricts the movement of the operation member 7 toward the front side.

  Next, the positional relationship of the components housed in the housing 2 of the push switch 1 according to the present embodiment will be described. FIGS. 5-8 is a figure for demonstrating the positional relationship of the component accommodated in the housing 2 of the push switch 1 which concerns on this Embodiment. 5 shows a front view of the housing 2 of the push switch 1 according to the present embodiment, and FIGS. 6 to 8 show the movable contact plate 4, the insulating sheet 5, and the click feeling on the housing 2 shown in FIG. The state where the plate 6 is stored is shown.

  As shown in FIG. 5, a center fixed contact 9 is disposed at the center of the recess 25 formed in the bottom surface of the internal space of the housing 2, and a pair of external fixed contacts 10 are disposed on the sides thereof. . The central fixed contact 9 has a generally circular shape, and the external fixed contact 10 has a vertically long rectangular shape in the vertical direction. A holding piece 28 is provided on the side of the external fixed contact 10 with the slit 27 interposed therebetween. A flat part 26 having a generally semicircular arc shape is provided on the upper side and the lower side of the concave part 25, and a holding table 29 is provided vertically on the side of the flat part 26 with a holding piece 28 interposed therebetween.

  The movable contact plate 4 is arranged as shown in FIG. 6 with respect to the housing 2 having such a configuration. As described above, the movable contact plate 4 is disposed in the housing 2 in a state of being attached to the insulating sheet 5, but is shown as a single component for convenience of explanation. In the movable contact plate 4, the circular portion 41 is disposed at a position corresponding to the concave portion 25, and the arm portion 42 is disposed at a position corresponding to the slit portion 27 and the holding piece 28. In such a state, the circular portion 41 is arranged at a position where the central portion thereof faces the central fixed contact 9, and the connection portion between the circular portion 41 and the arm portion 42 faces the external fixed contact 10. It is arranged at the position to do. In this case, the end portion of the arm portion 42 is held by the holding piece 28.

  As shown in FIG. 7, the insulating sheet 5 is disposed so that the end portion thereof is attached to the flat portion 26 in a state where the movable contact plate 4 is attached to the lower surface thereof. In this case, as described above, the flat surface portion 26 is disposed slightly forward of the holding piece 28 (on the front side in FIG. 7). For this reason, the insulating sheet 5 attached and fixed to the flat portion 26 does not restrict the operation of the movable contact plate 4.

  As shown in FIG. 8, the click feeling plate 6 is arranged to be placed on the holding table 29 at the end portion of the housing 2 to which the insulating sheet 5 is attached in this manner, as shown in FIG. 8. The holding base 29 is arranged at a position on the front side of the insulating sheet 5 attached and fixed to the flat portion 26. On the other hand, since the click feeling plate 6 has a dome shape, the click feeling plate 6 does not contact the insulating sheet 5 in a state where the pressing operation by the user is not performed.

  Here, the operation of the push switch 1 according to the present embodiment will be described with reference to FIGS. The push switch 1 performs a two-stage operation according to a pressing operation by the user. In the push switch 1 in the initial state (not receiving the pressing operation) shown in FIG. 4, when the first-stage pressing operation is received from the user, the operation member 7 is pushed backward, and the leg 73 The rear end pushes the click feeling plate 6 backward. When pushed by the leg 73, the rear surface of the click feeling plate 6 comes into contact with the insulating sheet 5, and the movable contact plate 4 attached to the rear surface is also pushed slightly backward.

  As shown in FIG. 6, the movable contact plate 4 is held on the holding piece 27 by the arm portion 42. For this reason, when it is pushed slightly to the rear side, not the entire movable contact plate 4 but the connecting portion between the circular portion 41 and the arm portion 42 moves to the rear side. For this reason, when the connecting portion comes into contact with both the external fixed contacts 10, the movable contact plate 4 and the external fixed contact 10 become conductive, and the device mounted from the push switch 1 (hereinafter referred to as "mounting device"). ), An output signal corresponding to the first stage pressing operation is output. In this case, the circular portion 41 of the movable contact plate 4 and the central fixed contact 9 are not in contact.

  The click feeling plate 6 is configured such that the dome-shaped portion is reversed in the front-rear direction when the first-stage pressing operation is performed as described above. Thereby, a click feeling is given to the user. By providing this click feeling, the user can recognize that the first-stage pressing operation has been performed appropriately.

  In the state where the first stage pressing operation is performed, when the second stage pressing operation is received from the user, the operation member 7 is further pushed backward, and the rear end portion of the leg portion 73 further extends. The click feeling plate 6 is pushed backward. When further pushed by the leg portion 73, the rear surface of the click feeling plate 6 pushes the movable contact plate 4 further rearward through the insulating sheet 5.

  In this case, in the movable contact plate 4, the circular portion 41 is pushed in with the connecting portion between the circular portion 41 and the arm portion 42 in contact with the external fixed contact 10. For this reason, when the central portion of the circular portion 41 contacts the central fixed contact 9, the movable contact plate 4, the central fixed contact 9 and the external fixed contact 10 are brought into conduction, and the push switch 1 is connected to the mounting device. An output signal corresponding to the two-stage pressing operation is output.

  The movable contact plate 4 is configured such that the dome-shaped portion is reversed in the front-rear direction when the second-stage pressing operation is performed as described above. Thereby, a click feeling is given to the user. By giving this click feeling, the user can recognize that the pressing operation in the second stage has been appropriately performed.

  Next, a mode in which the push switch 1 according to the present embodiment is mounted on the printed circuit board 11 will be described. FIG. 9 is a perspective view showing the configuration of the printed circuit board 11 on which the push switch 1 according to the present embodiment is mounted. 10 and 11 are a perspective view and a side view of the push switch 1 according to the present embodiment mounted on the printed board 11. 9 to 11 show a part of the printed circuit board 11, and the shape thereof can be appropriately changed. In FIG. 9, the push switch 1 is also shown for convenience of explanation.

  As shown in FIG. 9, the printed board 11 has a notch 111 on the edge of which the push switch 1 is mounted. The notch 111 has a generally rectangular shape, and the width in the longitudinal direction is slightly wider than the width of the engagement piece 85 of the frame 8. For this reason, the notch part 111 can accommodate the lower part of the housing 2 to which the frame 8 is attached.

  Three land portions 112 and two dummy land portions 113 are provided on the surface of the printed circuit board 11 and in the vicinity of the notch portion 111. The land part 112 is provided at a position on the back side of the notch part 111, and the dummy land part 113 is provided at a position on the side of the notch part 111. The land portion 112 is disposed at a position corresponding to the flat portion 31 of the terminal member 3 in the push switch 1 mounted on the printed circuit board 11, and the dummy land portion 113 is disposed on the frame 8 in the push switch 1 in the same state. It is disposed at a position corresponding to the engagement piece 84.

  The push switch 1 is mounted by the terminal member 3 and the engagement piece 84 with respect to the printed circuit board 11 comprised in this way. In the mounting process, first, cream solder is applied to the land portion 112 and the dummy land portion 113. The push switch 1 is arranged so that the rear surface of the housing 2 is brought into contact with the end surface of the notch 111 and the terminal member 3 and the engagement piece 84 are disposed at positions corresponding to the land 112 and the dummy land 113, respectively. Be placed. By passing the push switch 1 arranged in this way into the reflow soldering apparatus, the cream solder is melted and solidified by infrared rays or hot air, and each terminal member 3 is soldered to the land portion 112 to be electrically and mechanically. At the same time, the engagement piece 84 is soldered to the dummy land portion 113 and mechanically connected.

  As a result, an output signal corresponding to the pressing operation (first stage, second stage) on the push switch 1 can be output from the terminal member 3 to the control unit of the mounting device via the land part 112. The dummy land portion 113 is connected to a ground pattern (not shown) on the printed circuit board 11. By grounding in this way, it is possible to prevent the push switch 1 from being damaged by static electricity.

  The land portion 112 and the dummy land portion 113 are preferably formed in consideration of the cream solder tension generated when the terminal member 3 and the engagement piece 84 are fixed by soldering. That is, the push switch 1 is fixed while being pulled rearward by the tension of the cream solder (alignment effect). When the land portion 112 and the dummy land portion 113 are formed in consideration of such cream solder tension, the push switch 1 can be appropriately mounted at a desired position.

  Through such a mounting process, the push switch 1 is mounted on the printed board 11 as shown in FIGS. In FIG. 10 and FIG. 11, cream solder for fixing the push switch 1 is omitted. When mounted in this way, the push switch 1 is fixed to the printed circuit board 11 only by the flat surface portion 31 of the terminal member 3 and the lower end surface of the engagement piece 84.

  Thus, when it fixes with the plane part 31 of the terminal member 3, and the lower end surface of the engagement piece 84, the upper surface of the printed circuit board 11 is arrange | positioned on the same plane as the reference plane P1 (refer FIG. 3) mentioned above. It will be. As described above, the lower end surface 84b of the engagement piece 84 is disposed in a state in which the rear side is slightly inclined upward with respect to the reference plane P1, and therefore the flat surface portion 31 is disposed on the printed circuit board 11 with the entire lower surface thereof. This is because the engaging piece 84 comes into contact with the printed circuit board 11 only at the front end portion thereof while being in surface contact.

  In the push switch 1, the cream solder on the dummy land portion 113 is applied to a thickness that can fix the rear end portion of the lower end surface 84b. For this reason, when the reflow soldering apparatus is passed, the entire lower end surface 84b of the engagement piece 84 can be fixed with cream solder. Therefore, even when the lower end surface 84b of the engagement piece 84 is inclined, the mounting strength of the push switch 1 with respect to the printed circuit board 11 can be ensured.

  As described above, in the push switch 1 according to the present embodiment, the rear portion of the lower end surface 84b of the engagement piece 84 is disposed in a state slightly inclined upward from the reference plane P1, so that the plane portion The entire lower surface of 31 is in surface contact with the printed circuit board 11. If the lower end surface 84b of the engagement piece 84 is not inclined and is arranged on the same plane as the reference plane P1, the planar portion 31 of the terminal member 3 is placed on the printed circuit board 11 as shown in FIG. A situation where contact cannot be made may occur.

  For example, a situation in which the flat portion 31 cannot contact the printed circuit board 11 may occur when variations due to springback occur during bending of the terminal member 3. In this case, even if it passes through the reflow soldering device, it is expected that the flat portion 31 cannot be fixed with cream solder, or even if it can be fixed, the desired mounting strength cannot be secured. In order to prevent such a situation, in the push switch 1 according to the present embodiment, an inclined surface is provided on the rear side portion of the lower end surface 84b of the engagement piece 84, and the flat surface portion 31 is reliably in contact with the printed circuit board 11. Is secured.

  As described above, in the push switch 1 according to the present embodiment, the terminal member 3 having the flat surface portion 31 in surface contact with the surface of the printed circuit board 11 and the surface contact of the flat surface portion 31 of the terminal member 3 with the printed circuit board 11 are performed. It is mounted on the notch 111 of the printed circuit board 11 by the engaging piece 84 having an allowable shape. Thereby, since it can mount with respect to the printed circuit board 11 on the basis of the plane part 31 of the terminal member 3, the situation where the push switch 1 inclines by interference with another part can be prevented, and it mounts in the printed circuit board 11 appropriately. It becomes possible to do.

  In particular, in the push switch 1 according to the present embodiment, the inclination in which the rear end portion of the lower end surface is disposed above the reference plane P1 on the lower end surface of the engagement piece 84 fixed to the printed circuit board 11. And the front end portion of the lower end surface of the engagement piece 84 is disposed at a position on the reference plane P1. Thereby, since the rear end portion of the lower end surface of the engagement piece 84 is disposed above the reference plane P <b> 1, the lower end surface of the engagement piece 84 is the surface of the terminal member 3 on the printed circuit board 11. It is possible to prevent a situation of contact prior to the contact, and to reliably allow surface contact of the flat portion 31 of the terminal member 3 with the printed circuit board 11. Further, since the flat surface portion 31 of the terminal member 3 and the front end portion of the lower end surface of the engagement piece 84 are brought into contact with the surface of the printed circuit board 11, the flat surface portion 31 of the terminal member 3 is more reliably attached to the printed circuit board. 11 can be brought into surface contact with the surface.

  In addition, this invention is not limited to the said embodiment, It can change and implement variously. In the above-described embodiment, the size, shape, and the like illustrated in the accompanying drawings are not limited to this, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the above-described embodiment, a case has been described in which the lower end surface of the engagement piece 84 is provided with an inclination in which the front end portion is disposed at a position on the reference plane P1. However, the inclined configuration formed on the lower end surface of the engagement piece 84 is not limited to this, and can be changed as appropriate. For example, on condition that the surface contact of the flat portion 31 with the printed circuit board 11 is allowed, for example, the inclination may be such that the rear end portion is arranged upward from the vicinity of the center of the lower end surface of the engagement piece 84.

  In the above-described embodiment, the case where the lower end surface of the engagement piece 84 is inclined as the shape allowing the surface contact of the flat portion 31 of the terminal member 3 with the printed circuit board 11 is described. The shape of the joining piece 84 is not limited to this, and can be changed as appropriate. For example, the lower end surface of the engagement piece 84 may be disposed at a position above the reference surface P1, and a protrusion that reaches the reference surface P1 may be provided at the front end portion thereof. Also in this case, it is possible to obtain the same effect as the above embodiment.

It is a disassembled perspective view of the push switch comprised with the electronic component which concerns on this Embodiment. It is a perspective view of the push switch which concerns on the said embodiment. It is a side view of the push switch which concerns on the said embodiment. It is sectional drawing of the push switch which concerns on the said embodiment. It is a figure for demonstrating the positional relationship of the component accommodated in the housing of the push switch which concerns on the said embodiment. It is a figure for demonstrating the positional relationship of the component accommodated in the housing of the push switch which concerns on the said embodiment. It is a figure for demonstrating the positional relationship of the component accommodated in the housing of the push switch which concerns on the said embodiment. It is a figure for demonstrating the positional relationship of the component accommodated in the housing of the push switch which concerns on the said embodiment. It is a perspective view shown about the structure of the printed circuit board with which the push switch which concerns on the said embodiment is mounted. It is a perspective view in the state where the push switch concerning the above-mentioned embodiment was mounted in the printed circuit board. It is a side view in the state where the push switch concerning the above-mentioned embodiment was mounted in the printed circuit board. It is a side view of the state where the push switch at the time of changing the engagement piece of the frame concerning the above-mentioned embodiment was mounted in the printed circuit board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Push switch 2 Housing 21 Opening part 22a Guide wall part 22b, 23 Recessed part 22c, 23a Inclined surface 24 Engaging protrusion part 25 Recessed part 26 Flat part 27 Slit part 28 Holding piece 29 Holding stand 3 Terminal member 31 Contact surface 4 Movable contact plate 41 circular portion 42 arm portion 5 insulating sheet 6 click feeling plate 7 operation member 71 head portion 72 plate-like portion 73 leg portion 8 frame 81 plane portion 82 opening portion 83 engagement hole 84, 85 engagement piece 86, 87 engagement Joint nail 9 Center fixed contact 10 External fixed contact

Claims (3)

A housing in which an opening is formed on the front surface and a terminal member is led out rearward, and a pair of board mounting pieces at positions corresponding to the side surfaces of the housing are attached to the housing so as to cover the opening. An electronic component mounted on a notch formed on the edge of the printed circuit board by the terminal member and the board mounting piece,
The terminal member is formed with a flat portion in surface contact with the surface of the printed circuit board, while the rear end portion of the lower end surface is formed with the flat surface portion on the lower end surface of the board mounting piece fixed to the printed circuit board. An electronic component characterized in that an inclination is provided above the reference surface, and the board mounting piece is shaped to allow surface contact of the flat part with the printed board. 2. The electronic component according to claim 1 , wherein a front end portion of a lower end surface of the board mounting piece is disposed at a position on the reference surface. 3. The electronic component according to claim 1 , wherein the entire range of the lower end surface of the board mounting piece is fixed to the printed board by soldering.

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