JP5906703B2 - Push switch - Google Patents

Description

  The present invention relates to a switch used for various small electronic devices, and more particularly, to a push switch including an operation member mounted on a circuit board and displaceable in a direction parallel to the circuit board.

  In this type of switch, a recess is formed in a resinous case mounted on a circuit board. A conductive member is integrated with the case by insert molding or the like, and a part of the conductive member is disposed in the recess as a fixed electrode. A movable electrode is further disposed in the recess, and is elastically displaceable between a first position in contact with the fixed electrode and a second position in contact with the fixed electrode.

  The switch is provided with an operation member. When the user presses the operation member in a state where the switch is mounted on the circuit board, the operation member moves in a direction parallel to the circuit board, displaces the movable electrode to the first position, and conducts to the fixed electrode. Get state. When the pressing force is released, the movable electrode is elastically returned to the second position and the conductive state with the fixed electrode is released (see, for example, Patent Document 1).

JP 2010-118336 A

  In the switch described above, the external connection terminal electrically connected to the fixed electrode extends in the horizontal direction from the middle in the height direction of the case, and is placed on the land portion provided on the circuit board. And used for soldering. A part of the case located below the external connection terminal is disposed in the notch formed in the circuit board and abuts the end surface of the notch, so that the operation member is pushed into the soldered part after mounting. The applied moment (force to peel off the external connection terminal from the land) is suppressed.

  However, with the recent miniaturization of electronic devices, as the switches are also miniaturized, the user's pressing force is relatively high with respect to the structural strength of the soldered portion. A part of the soldering portion may be destroyed and the external connection terminal may be peeled off from the land portion.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a push switch that can improve the durability against the pressing force of the operation member while responding to a request for downsizing.

One aspect that the present invention can take in order to solve the above problems is a push switch mounted on a circuit board,
An insulative case having a wall portion defining a recess;
A plurality of fixed electrodes disposed in the recess;
A movable electrode disposed in the recess and displaceable between a first position where the plurality of fixed electrodes are in a conductive state and a second position where the conductive state is released;
An operating member provided on the first side of the case, and moved by an external pressing force to displace the movable electrode from the second position to the first position;
A conductive member that is electrically connected to one of the plurality of fixed electrodes and has a first exposed portion exposed to the first side in order to be soldered to a land portion provided on the circuit board And
The first exposed portion has a portion that extends in a direction away from the circuit board when mounted on the circuit board.

  According to the above configuration, the solder is solidified while spreading in the direction away from the circuit board along the first exposed portion, and the solder fillet is formed on the first side to be solidified. Since the solder fillet has a thickness in a direction along the moving direction of the operation member, the solder fillet can have a strength capable of withstanding a force for peeling the push switch generated by the pressing force of the operation member from the circuit board.

  The conductive member has a second exposed portion that is exposed on a second side of the case different from the first side in order to be soldered to a land portion provided on the circuit board. The two exposed portions may have a portion extending in a direction parallel to the circuit board when mounted on the circuit board. In this case, the side of the case facing the circuit board can be more firmly held on the circuit board by solder.

  In the case where the first exposed portion and the second exposed portion have an integral structure, it is possible to ensure a large area of the land portion to which these are fixed via solder. Therefore, the contact area of the solder is increased, and the peel resistance from the circuit board of the case against the pressing force of the operation member can be further improved.

  Here, the “integrated structure” refers to a state where the boundary between the first exposed portion and the second exposed portion is made of the same material and is continuous (monolithic state). It is used to distinguish from a configuration in which two or more members having different materials and characteristics are integrated by bonding or welding.

  The second exposed portion may further include a portion extending in a direction perpendicular to the circuit board. In this case, the portion extending in the vertical direction can be inserted into the insertion hole formed in the circuit board, or a solder fillet can be formed on the side of the portion. The peel resistance from the circuit board can be further improved.

  The first exposed portion may be provided inside the outermost end portion of the case on the first side. In this case, the formation position of the solder fillet can be accommodated in the mounting area of the case. Therefore, an increase in the mounting area of the push switch can be avoided while securing a sufficient fixing strength of the first exposed portion with respect to the land portion.

  It is good also as a structure further provided with the anchor member which protrudes in the direction non-parallel to the moving direction of the said operation member from the said electroconductive member, and is embed | buried under the said wall part. In this case, it is possible to prevent part of the case from being peeled off from the conductive member by a component force in a direction parallel to the circuit board.

  ADVANTAGE OF THE INVENTION According to this invention, the push switch which can improve the durability with respect to the pressing force of an operation member can be provided, responding to the request | requirement of size reduction.

It is a perspective view showing the appearance which looked at the push switch concerning one embodiment of the present invention from the upper part. It is a 5th page figure which shows the external appearance of the push switch of FIG. 1, (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is a rear view, (e) is a right view. It is. It is a disassembled perspective view which shows the internal structure of the push switch of FIG. It is a perspective view which shows the shape of the electroconductive member in the push switch of FIG. It is a perspective view which shows the external appearance which looked at the push switch of FIG. 1 from the downward direction. It is a right view which shows the state by which the push switch of FIG. 1 was soldered to the land part on a circuit board. It is a perspective view which shows the external appearance of the modification of the push switch of FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In each drawing used in the following description, the scale is appropriately changed to make each member a recognizable size.

  FIG. 1 is a perspective view showing an appearance of a push switch 1 according to an embodiment of the present invention as viewed from above. The push switch 1 includes a case 2 that is mounted on a circuit board 50. A cover 8 is installed on the upper surface of the case 2, and an operation member 7 is provided in the front. The operation member 7 can be displaced in the front-rear direction in accordance with a pressing operation by the user.

  A first external connection terminal 4 a and a second external connection terminal 4 b are provided on the left and right side surfaces of the case 2. The first external connection terminals 4a and the second external connection terminals 4b are connected and fixed to the land portions 50c and 50d of the wiring terminals formed on the mounting surface of the circuit board 50 by soldering, respectively. In the following description, the first external connection terminal 4a and the second external connection terminal 4b are collectively referred to as “external connection terminals” as necessary.

  FIG. 2 is a five-side view showing the appearance of the push switch 1, and FIG. 3 is an exploded perspective view showing the internal configuration of the push switch 1. 2, (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is a rear view, and (e) is a right side view. Since the shape seen from the left side is symmetric with that shown in the right side view, the illustration is omitted.

  The case 2 is made of an insulating material such as a resin, and a recessed portion 2a that opens upward is defined by a wall portion. A plurality of first fixed electrodes 3a are arranged at the peripheral edge at the bottom of the recess 2a, and a plurality of second fixed electrodes 3b are arranged at the center of the bottom.

  The movable electrode 5 is a dome-shaped conductive member that can be elastically deformed. The movable electrode 5 is accommodated in the recess 2a, and is arranged so that the outer edge portion 5a is in contact with the first fixed electrode 3a and the central portion 5b is opposed to the second fixed electrode 3b with a gap. That is, the movable electrode 5 is convex upward in normal times.

  The protective member 6 is an insulating resin sheet material such as polyamide resin, and is placed on the upper surface 2b of the case 2 so as to cover the recess 2a, and is fixed by an adhesive or the like. The protective member 6 prevents foreign matter from entering the recess 2a, and functions as a cushioning material by interposing between the operation member 7 and the movable electrode 5 described later.

  The operation member 7 is made of a resin material or the like, and includes a pressing portion 7a, a support portion 7b, and an operation portion 7c. The operation member 7 is placed above the protection member 6.

  The cover 8 is formed by punching and bending a metal plate, and a total of four locking leg portions 8b extend downward from the front and rear edges of the main body 8a placed on the upper surface 2b of the case 2. . A part of the center of the main body 8a is cut out to form a guide piece 8c extending obliquely downward toward the rear.

  The locking leg 8b is locked at a predetermined position on the front end surface 2c side and the rear surface 2d side of the case 2, so that the cover 8 is attached to the case 2, and the support portion 7b and the operation portion 7c of the operation member 7 are mounted. Is held between the main body 8a of the cover 8 and the protective member 6 so as to be movable in the front-rear direction. The pressing portion 7 a of the operation member 7 protrudes forward from the front end surface 2 c of the case 2.

  As shown in FIG. 2, the left and right side portions on the lower side of the case 2 are substrate facing surfaces 2 g. A region sandwiched between the substrate facing surfaces 2g is a substrate insertion portion 2h protruding downward. As shown in FIG. 1, the board insertion portion 2 h is inserted into a notch 50 b formed in the end face 50 a of the circuit board 50, and the bottom face 2 i is located on the lower surface side of the circuit board 50.

  FIG. 4 is a perspective view showing the external appearance of the first conductive member 11 and the second conductive member 12 for forming the conduction path of the push switch 1. In the following description, the first conductive member 11 and the second conductive member 12 are collectively referred to as “conductive members” as necessary.

  The conductive member is formed by punching and bending a metal plate, and further integrally formed with the case 2 through insert molding or the like, so that a part of the conductive member is embedded in the case 2.

  The 1st electroconductive member 11 is extended in the left-right direction, and the 1st fixed electrode 3a is provided in the left-right both sides of the center part 11a. The left and right ends of the first conductive member 11 are first external connection terminals 4a. As shown in FIG. 3, a portion 11b including the first fixed electrode 3a (hereinafter referred to as an electrode forming portion 11b) is disposed in the recess 2a of the case 2, and the first external connection terminal 4a is provided on the left and right side surfaces 2e of the case 2. It is exposed to the outside of the case 2 at 2f. The portion 11c other than these is embedded in a wall portion that defines the recess 2a. That is, the first fixed electrode 3a and the first external connection terminal 4a are electrically connected via the embedded portion 11c.

  The second conductive member 12 has a T-shape, and the second fixed electrode 3b is provided at the front end portion 12b of the portion extending forward from the central portion 12a of the portion extending in the left-right direction (hereinafter referred to as “after”). , Referred to as an electrode forming portion 12b). Both ends of the portion extending in the left-right direction are second external connection terminals 4b. As shown in FIG. 3, the portion 12 b including the second fixed electrode 3 b is disposed in the recess 2 a of the case 2, and the second external connection terminal 4 b is exposed to the outside of the case 2 on the left and right side surfaces 2 e and 2 f of the case 2. ing. The part 12c other than these is embedded in the inside of the wall part which divides and forms the recessed part 2a. That is, the second fixed electrode 3b and the second external connection terminal 4b are electrically connected via the embedded portion 12c.

  A bent piece 4c extends forward from each front end edge 11d of the left and right embedded portions 11c in the first conductive member 11. Each bent piece 4c has an integral structure with the embedded portion 11c, and can be easily formed by punching and bending a metal plate together with the first conductive member 11.

  Here, “integral structure” refers to a state (monolithic state) in which the boundary between the bent piece 4c and the embedded portion 11c is made of the same material and is continuous. In the following description, the term “integrated structure” is used to distinguish from a structure in which two or more members having different materials and characteristics are integrated by welding or bonding.

  As shown in FIG. 5, the left and right ends of the front side of the case 2 (the side where the pressing portion 7a of the operation member 7 is provided) have an upper portion as a front end surface 2c, and a lower end portion of the front end surface 2c is front and rear. It continues to the overhanging end face 2j extending in the direction. The rear end portion of the overhanging end surface 2j is continuous with the inclined end surface 2k facing forward. The inclined end surface 2k extends obliquely downward toward the rear, and its lower end is located in the same plane as the substrate facing surface 2g.

  When the first conductive member 11 and the second conductive member 12 are integrally formed with the case 2, the respective lower end surfaces 11f and 12f are exposed to the substrate facing surface 2g. The base end portion 4c1 of the bent piece 4c is flush with the lower end surface 11f.

  As apparent from FIGS. 4 and 5, the bent piece 4 c extends obliquely upward, and the distal end portion 4 c 3 is embedded in the case 2. The front end surface 4c2 of the bent piece 4c is exposed on the inclined end surface 2k of the case 2 except for the embedded tip portion 4c3 and faces forward. The front end surface 4c2 of the bent piece 4c and the inclined end surface 2k of the case 2 form the same surface.

  FIG. 6 shows a state where the push switch 1 of this embodiment is placed on the circuit board 50. As described above, by inserting the board insertion part 2h of the case 2 into the notch part 50b formed in the circuit board 50, the board mounting surface 2m formed on the front and back with the board facing surface 2g interposed therebetween is formed on the circuit board 50. It is mounted on the upper surface. In this state, a slight gap is formed between the substrate facing surface 2 g and the upper surface of the circuit board 50. The first external connection terminal 4a and the second external connection terminal 4b are opposed to the land portions 50c and 50d of the wiring terminal formed on the upper surface of the circuit board 50 respectively through a slight gap.

  By performing the soldering process in this state, the solder 60a flows into the gap formed between the first external connection terminal 4a and the land portion 50c and solidifies, so that the first external connection terminal 4a becomes the land portion 50c. Fixed and electrically connected. Similarly, the solder 60b flows into a gap formed between the second external connection terminal 4b and the land portion 50d and solidifies, whereby the first external connection terminal 4b is fixed to the land portion 50d and electrically connected. The

  The land portion 50c extends to a position facing the protruding end surface 2j in front of the inclined end surface 2k of the case 2. Therefore, the solder 60a spreads along the front end surface 4c2 of the bent piece 4c exposed at the inclined end surface 2k, and is solidified while forming the solder fillet 60c.

  When the user directly or indirectly presses the pressing portion 7 a of the operating member 7 toward the rear, the support portion 7 b and the operating portion 7 c slide backward under the case 8. When the operation portion 7c moves backward by a certain amount, it comes into contact with the lower surface of the guide piece 8c of the case 8. Since the guide piece 8 c is inclined obliquely downward, the operation portion 7 c of the operation member 7 is guided downward and presses the movable electrode 5 via the protection member 6.

  When the load applied to the movable electrode 5 exceeds a predetermined value, the central portion 5b is inverted with a click feeling and protrudes downward, and contacts the second fixed electrode 3b. Accordingly, the first fixed electrode 3 a and the second fixed electrode 3 b are brought into conduction through the movable electrode 5. Accordingly, it is sufficient that at least one first fixed electrode 3a and second fixed electrode 3b are provided.

  When the pressing force is released, the central portion 5b returns to the original state (projected upward) with a click feeling by the self-restoring force (elasticity) of the movable electrode 5, and the first fixed electrode 3a and the second fixed electrode The conduction of 3b is released. The operating portion 7c of the operating member 7 is guided upward and obliquely upward by the guide piece 8c of the case 8, the support portion 7b slides forward, and the pressing portion 7a returns to its original position.

  That is, the movable electrode 5 is displaceable between a first position where the first fixed electrode 3a and the second fixed electrode 3b are in a conductive state and a second position where the conductive state is released. The operating member 7 moves in a direction parallel to the circuit board 50 by an external pressing force applied in a state where the push switch 1 is mounted on the circuit board 50, and moves the movable electrode 5 from the second position to the first position. Displace to

  The operating force that presses the operating member 7 generates a component force in a direction parallel to the circuit board 50 and a component force in a direction away from the circuit board 50, and acts to peel off the push switch 1 from the circuit board 50. However, since the front end surface 4c2 of the bent piece 4c included in the first conductive member 11 is soldered to the land portion 50c, the side where the operation member 7 is provided on the inclined end surface 2k of the case 2 (the first in the present invention). 1 side) and extends in a direction away from the circuit board 50. For this reason, the solder is solidified while spreading in the direction away from the circuit board 50 along the front end face 4c2 of the bent piece 4c, and the solder fillet 60c is formed on the first side to be solidified. That is, the front end surface 4c2 functions as the first exposed portion in the present invention.

  Since the solder fillet 60c formed along the front end face 4c2 of the bent piece 4c has a thickness along the moving direction A of the operation member 7, the push switch 1 generated by the pressing force of the operation member 7 is connected to the circuit board. It can have the strength to withstand the force of peeling from 50. Thereby, the push switch 1 with high durability with respect to the pressing force of the operation member 7 can be provided.

  Because the lower end surface 11f of the first conductive member 11 is used for soldering on the board-facing surface 2g of the case 2 which is the side (second side in the present invention) different from the front end surface 4c2 of the bent piece 4c. It is exposed and extends in a direction parallel to the circuit board 50. For this reason, the side facing the circuit board 50 of the case 2 can be more firmly held on the circuit board 50 by soldering. That is, the lower end surface 11f of the first conductive member 11 functions as a second exposed portion of the present invention.

  Further, since the front end surface 4c2 of the bent piece 4c and the lower end surface 11f of the first conductive member 11 have an integral structure, a large area of the land portion 50c to which they are fixed via the solder 60a can be secured. . Accordingly, the contact area of the solder is increased, and the peel resistance of the case 2 from the circuit board 50 against the pressing force of the operation member 7 can be further enhanced.

  The inclined end surface 2k of the case 2 where the front end surface 4c2 of the bent piece 4c is exposed is provided inside the front end surface 2c which is the outermost end portion on the side where the operation member 7 is provided in the case 2. . Thereby, the solder fillet 60c formed along the front end surface 4c2 of the bent piece 4c can be stored below the projecting end surface 2j of the case 2. Therefore, an increase in the mounting area of the push switch 1 can be avoided while securing a sufficient fixing strength of the front end face 4c2 of the bent piece 4c to the land portion 50c.

  As shown in FIG. 4, the first conductive member 11 includes a plurality of anchor members 13. Each anchor member 13 protrudes above the front side edge 11d and the rear side edge 11e of the embedded portion 11c. Each anchor member 13 has an integral structure with the embedded portion 11 c and can be easily formed by punching and bending a metal plate together with the first conductive member 11.

  The component force in the direction away from the circuit board 50 generated by the operating force that presses the operating member 7 acts to peel a part of the case 2 from the first conductive member 11. However, the anchor member 13 protrudes from the first conductive member 11 in a direction non-parallel to the moving direction A (see FIG. 6) of the operation member 7, and is embedded in the wall portion that defines the concave portion 2a of the case 2. It can stop that a part of case 2 peels from an electroconductive member with said component force.

  Further, the second conductive member 12 includes a plurality of anchor members 14 protruding from the electrode forming portion 12b in a direction not parallel to the moving direction of the operation member 7 and embedded in a wall portion defining and forming the concave portion 2a of the case 2. ing. The anchor member 14 can prevent the second conductive member 12 from being peeled off from a part of the case 2 by a component force in a direction parallel to the circuit board 50 in particular.

  Each anchor member 14 protrudes obliquely downward from the side edge 12e of the electrode forming portion 12b. Each anchor member 14 has an integral structure with the electrode forming portion 12b, and can be easily formed by punching and bending a metal plate together with the second conductive member 12.

  Next, a push switch 1A according to a modification of the above embodiment will be described with reference to FIG. In this modification, the shape of the external connection terminal is different from that of the above embodiment. Since the other configuration is the same as that of the above-described embodiment, a repeated description is omitted.

  The first external connection terminal 24a that is electrically connected to the first fixed electrode 3a through the first conductive member 11 is exposed to the outside of the left and right side surfaces 2e and 2f of the case 2 and is bent downward. The first external connection terminal 24a is inserted into an insertion hole 50e connected to a wiring terminal formed on the mounting surface of the circuit board 50, and is fixed by soldering. By inserting the tip of the first external connection terminal 24a into the insertion hole 50e, a strong fixing strength can be ensured, and the peel resistance from the circuit board 50 of the case 2 against the pressing force of the operating member 7 is further enhanced. Can do.

  The second external connection terminal 24b that is electrically connected to the second fixed electrode 3b through the second conductive member 12 is exposed to the outside of the left and right side surfaces 2e and 2f of the case 2 and is bent upward. The second external connection terminal 24b is connected to a land 50d of a wiring terminal formed on the mounting surface by soldering. As a result, a solder fillet can also be formed on the side of the second external connection terminal 24b to ensure a high fixing strength, and the peel resistance from the circuit board 50 of the case 2 against the pressing force of the operation member 7 can be further increased. Can be increased.

  The first external connection terminal 24a may be bent upward like the second external connection terminal 24b and connected to the land portion 50d. The second external connection terminal 24b may be bent downward like the first external connection terminal 24a and inserted into the insertion hole 50e of the circuit board 50. Further, one of the first external connection terminal 24a and the second external connection terminal may be formed of only a portion extending in parallel with the circuit board 50 without being bent like the external connection terminal of the above-described embodiment.

  The above embodiment is for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.

  The front end surface 4c2 (first exposed portion) of the bent piece 4c and the lower end surface 11f (second exposed portion) of the first conductive member 11 have an integral structure, and need not be connected to the common land portion 50c. These may be separated by the substrate facing surface 2g of the case 2, and each may be soldered to a separate land portion formed on the circuit board 50.

  The lower end surface 11f of the first conductive member 11 is exposed at the substrate facing surface 2g of the case 2, and it is not necessary that they form the same surface. The left and right side surfaces 2e and 2f of the case 2 different from the side where the operation member 7 is provided may be exposed as the lower end surface of the external connection terminal.

  The land portions 50c and 50d of the circuit board 50 are provided only at positions facing at least one of the lower end surfaces 11f and 12f of the first conductive member 11 and the second conductive member 12, and are connected and fixed by soldering. Also good. In this case, the external connection terminal exposed on the side of the case 2 can be omitted, which contributes to the reduction of the mounting area.

  In the above embodiment, the push switch 1 is fixed on the circuit board 50 by inserting the board insertion part 2 h into the notch 50 b formed in the circuit board 50. However, it is not always necessary to provide the board insertion portion 2h. That is, the substrate mounting surface 2m of the case 2 may be substantially the bottom surface of the case 2.

  Also in this case, each of the external connection terminals can adopt the shapes described above, and the external connection terminals are omitted, and a part of the conductive member exposed to the substrate facing surface 2g of the case 2 is wired. A configuration used for connection to a circuit can be employed.

  The upper end of the inclined end surface 2k of the case 2 where the front end surface 4c2 of the bent piece 4c is exposed does not necessarily have to be continuous with the rear end of the overhanging end surface 2j. If the space in which the solder fillet 60c is formed can be secured in the vicinity of the front end face 50a of the circuit board 50, the upper end of the inclined end face 2k may be continuous with the lower end of the front end face 2c. The inclined end surface 2k itself may form the front end surface of the case 2 and the upper end of the inclined end surface 2k may be the outermost end portion of the case 2.

  If the conductive member and the non-conductive state are switched by the movement of the operation member 7, the number, shape, and arrangement of the conductive members are appropriately determined according to the design requirements, and the above configuration is used. It is not limited. The number, shape, protruding direction, and arrangement of the anchor members 13 and 14 are appropriately determined according to these conditions in the conductive member.

  The expressions relating to “upper and lower”, “left and right”, and “front and rear” in the above description are merely used for convenience in the description with reference to the drawings, and are not intended to limit the direction when the product is used. “Upper” and “lower” can be rephrased as “a direction away from the circuit board” and “a direction closer to the circuit board”, respectively. Similarly, the expressions “front-rear direction” and “left-right direction” can be rephrased as “direction parallel to the circuit board”.

  1: push switch, 2: case, 2a: recess, 2c: front end surface, 2e: right side surface, 2f: left side surface, 2g: substrate facing surface, 2k: inclined end surface, 3a: first fixed electrode, 3b: second Fixed electrode, 4a: first external connection terminal, 4b: second external connection terminal, 4c: bent piece, 4c2: front end surface (first exposed portion), 5: movable electrode, 7: operation member, 11: first conductive 11f: lower end surface (second exposed portion), 12: second conductive member, 13: anchor member, 14: anchor member, 50: circuit board, 60a: solder, 60c: solder fillet

Claims (5)

A push switch mounted on a circuit board,
An insulative case having a wall portion defining a recess;
A plurality of fixed electrodes disposed in the recess;
A movable electrode disposed in the recess and displaceable between a first position where the plurality of fixed electrodes are in a conductive state and a second position where the conductive state is released;
An operating member provided on the first side of the case, and moved by an external pressing force to displace the movable electrode from the second position to the first position;
A conductive member that is electrically connected to one of the plurality of fixed electrodes and has a first exposed portion exposed to the first side in order to be soldered to a land portion provided on the circuit board And
The first exposed portion has a portion extending in a direction away from the circuit board in a state of being mounted on the circuit board ,
The first exposed portion is a push switch provided on the inner side of the outermost end portion of the case on the first side . The conductive member has a second exposed portion exposed on a second side of the case different from the first side in order to be soldered to a land portion provided on the circuit board,
2. The push switch according to claim 1, wherein the second exposed portion has a portion extending in a direction parallel to the circuit board when mounted on the circuit board.   The push switch according to claim 2, wherein the first exposed portion and the second exposed portion have an integral structure.   4. The push switch according to claim 2, wherein the second exposed portion further includes a portion extending in a direction perpendicular to the circuit board. 5. 5. The push switch according to claim 1 , further comprising an anchor member protruding from the conductive member in a direction not parallel to the moving direction of the operation member and embedded in the wall portion . 6.

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