JP2013012371A - Switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch having high design flexibility, enabling secure contact between a movable contact point and a fixed contact point, and providing satisfactory operation feeling.SOLUTION: A switch 1, deformed by a pressed movable contact point terminal 5 in cooperation with the movement of an operation member 6 and having a movable contact point 4 that moves between a position contacting to a fixed contact point 3a and a non-contacting position, includes a fixed contact point support wall 12 inside the sidewall portion 11a of a mold case 7. The fixed contact point 3a is exposed to the inner side face of the fixed contact point support wall 12. The movable contact point terminal 5 includes: an elastic movable portion 21 disposed between a sidewall 11a and the fixed contact point support wall 12; and a bent portion 22 having a shape bent to the fixed contact point 3a side of the fixed contact point support wall 12 by detouring the end portion of the fixed contact point support wall 12 from one end of the elastic movable portion 21. The movable contact point 4 disposed at the tip end side of the bent portion 22 is allowed to contact to the fixed contact point 3a inside the fixed contact point support wall 12.

Description

  The present invention relates to a switch such as a lever switch used as a detection switch, a reset switch, or the like for detecting insertion / removal of a recording medium in various electronic devices.

  Conventionally, in a portable terminal device such as a mobile phone, an electronic device such as a portable audio player, and a digital camera, as a means for detecting the insertion state of a recording medium such as an IC card or a CD, or as a reset (initialization operation) switch A lever switch that is turned on / off in accordance with the turning operation of the turning lever is used.

  As such a lever switch, for example, one having a structure as shown in FIG. 5 is known (for example, Patent Document 1), and a hollow box-shaped mold case 100 and a fixing exposed on the inner surface of the side wall of the mold case 100 are known. A fixed contact terminal having a contact 101, a spring-like movable contact terminal 102 housed in the mold case 100, and a rotation lever 103 rotatably supported by the mold case 100 are provided.

  The movable contact terminal 102 is fixed in a state where one end is connected to the common terminal 105 to the mold case 100, and the rotation lever 103 is rotated to the pushing position indicated by a one-dot chain line in the figure to thereby turn the rotation lever 103. It is pressed and elastically deformed with the fixed portion 102a as a base point, whereby the movable contact 104 moves along the side wall portion to a position where it contacts the fixed contact 101, and the switch is turned on.

  On the other hand, when the force acting on the rotation lever 103 is released, the rotation lever 103 is pushed back to the origin position indicated by the solid line in the figure by the elastic force of the movable contact terminal 102, and the contacts 101 and 104 are moved to a non-contact position. By doing so, the switch is turned off.

JP 2007-220517 A

  However, in the conventional technology as described above, there is a restriction that the fixed contact portion and the fixed portion of the movable contact terminal cannot be provided on the same side wall portion from the viewpoint of structure. There is a problem that the direction of operation is limited and the degree of freedom in design is low.

  In addition, in such a lever switch, if the length of the portion that functions as the leaf spring of the movable contact terminal is shortened, it is advantageous for realizing miniaturization, while the shorter the portion that functions as the leaf spring, the larger the load. There was a problem that it was easy to get tired, and there was a possibility that the life would be shortened.

  Furthermore, when the movable contact portion is moved by the lever operation, it is difficult to reliably bring the movable contact portion into contact with the fixed contact portion, and the pressing force by the lever is dispersed in the moving direction of the movable contact portion. There is a risk that the contact pressure between the portion and the movable contact portion cannot be sufficiently obtained.

  Therefore, in view of such a conventional problem, the present invention aims to provide a switch that has a high degree of freedom in design, can reliably contact the movable contact portion and the fixed contact portion, and has a good operation feeling. It was made as.

  The feature of the invention described in claim 1 for solving the conventional problems as described above and achieving an intended purpose is that a flat plate-like substrate portion and a side wall portion having a shape raised from a side edge of the substrate portion. A mold case, a fixed contact terminal having a fixed contact portion exposed in the mold case, and a movable contact that has one end fixed to the mold case and the other end in contact with the fixed contact portion. A movable contact terminal in the form of a spring and an operation member supported movably on the mold case, the movable contact terminal being deformed in conjunction with the movement of the operation member, and the movable contact portion In the switch that moves between a position in contact with the fixed contact portion and a position in a non-contact state, the mold case includes a fixed contact support wall portion inside the side wall portion, and the fixed contact portion. Inside the support wall The fixed contact portion is exposed on a surface, and the movable contact terminal includes an elastic movable portion disposed between the side wall portion and the movable contact support wall portion, and the fixed contact support wall portion from one end of the elastic movable portion. And a curved portion that is curved toward the fixed contact portion side of the fixed contact support wall portion, and the movable contact portion disposed on the distal end side of the curved portion is the fixed contact support wall. In other words, the fixed contact portion is brought into contact with the inside of the portion.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the fixed contact support wall portion is formed in a shape in which a fixed contact portion side in a direction along the side wall portion is inclined inward. To be.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the operation member is a rotation lever that is rotatably supported by the substrate portion.

  As described above, the switch according to the present invention includes a mold case having a flat board portion and a side wall portion raised from a side edge of the substrate portion, and a fixed contact portion exposed in the mold case. A fixed contact terminal, a spring-like movable contact terminal having one end fixed to the mold case and a movable contact portion in contact with the fixed contact at the other end, and moved to the mold case The movable contact terminal is deformed in conjunction with the movement of the operation member, and the movable contact portion is in a non-contact position between the position where the movable contact portion is in contact with the fixed contact portion. The mold case includes a fixed contact support wall portion on the inner side of the side wall portion, the fixed contact portion is exposed on an inner surface of the fixed contact support wall portion, and the movable contact is provided. end Is an elastic movable portion disposed between the side wall portion and the movable contact support wall portion, and bypasses an end of the fixed contact support wall portion from one end of the elastic movable portion, A curved portion curved to the fixed contact portion side, and the movable contact portion disposed on the distal end side of the curved portion is in contact with the fixed contact portion inside the fixed contact support wall portion. As a result, the length of the elastically deformable portion of the movable contact terminal can be increased, fatigue can be reduced, the life can be extended, and the degree of freedom in designing the shape of the movable contact terminal can be increased.

  In the present invention, the fixed contact support wall portion is formed in a shape in which the fixed contact portion side in the direction along the side wall portion is inclined inward, so that the pressing force by the operation member is not easily dispersed. A sufficient contact pressure can be obtained between the two contact points, and a good operation feeling can be obtained.

  Furthermore, in the present invention, the operation member is a rotation lever that is rotatably supported by the substrate portion, so that the force in the pushing direction is converted into the force in the rotation direction, and the movable contact terminal is preferably deformed. Can be made.

It is a top view which shows an example of the switch which concerns on this invention. It is a top view which shows the state which removed the shield cover same as the above. It is a top view of the state which removed the shield cover which shows the operation state of a switch same as the above. It is a top view which shows the movable contact terminal in FIG. It is sectional drawing which shows the outline of an example of the conventional lever switch.

  Next, an embodiment of the switch according to the present invention will be described based on the embodiment shown in FIGS. In the figure, reference numeral 1 denotes a lever type switch.

  The switch 1 has a hollow box-shaped housing 2, a fixed contact terminal 3 having a fixed contact portion 3a exposed in the housing 2, one end fixed to the housing 2, and the other end in contact with the fixed contact portion 3a. A leaf spring-like movable contact terminal 5 on which the movable contact portion 4 is formed, and a rotation lever 6 as an operation member rotatably supported by the housing 2 are provided. The rotation lever 6 is a solid line in FIG. The on / off state is switched by rotating between a predetermined origin position indicated by (1) and a predetermined pushing position indicated by a one-dot chain line in FIG.

  The housing 2 is formed in a hollow box shape by incorporating a mold case 7 made of an insulating resin and a shield cover 8 made of a metal material.

  As shown in FIGS. 2 and 3, the mold case 7 includes a plate-like substrate portion 10 and side wall portions 11 a, 11 b, 11 c that are raised from the side edge of the substrate portion 10. The opposite side is formed with an opening, and the opening surface portion facing the substrate portion 10 is closed by the shield cover 8.

  The mold case 7 has a fixed contact support wall 12 formed inside the one side wall 11a.

  The fixed contact support wall portion 12 is formed in a shape in which a wall body raised in the vertical direction from the inner side surface of the substrate portion 10 is continuous in the direction along the side wall portion 11a, and the inner side surface thereof, that is, the other side wall portion 11b side The fixed contact portion 3a is exposed at the end opposite to the rotating lever 6.

  The fixed contact support wall portion 12 is formed in a shape that is inclined toward the fixed contact portion 3a side, that is, the front end side in the direction along the side wall portion 11a, that is, toward the other side wall portion 11b.

  The fixed contact terminal 3 is integrally provided with a flat fixed contact portion 3a and a connection terminal portion 3b connected to a connection pattern formed on the connection substrate by soldering or the like, and the fixed contact portion 3a and the connection substrate 3b are provided. In an exposed state, it is integrated with the mold case 7 by insert molding.

  On the other hand, a terminal press-fitting portion 13 is formed at the end of the side wall portion 11a on the rotating lever side, and one end of the movable contact terminal 5 is press-fitted and fixed. The contact portion of the common terminal 14 integrated with the mold case 7 is exposed by insert molding, and the support fixing portion 20 of the movable contact terminal 5 press-fitted into the terminal press-fit portion 13 is always connected to the contact portion of the common terminal 14. It is supposed to be fixed in the state.

  As shown in FIG. 4, the movable contact terminal 5 is formed into a thin plate spring shape by punching and bending a conductive metal plate material having elasticity, and includes an elastic movable portion 21, a curved portion 22, an operated portion 23, a contact point. The support portion 24 and the movable contact portion 4 are integrally provided, and a support fixing portion 20 formed at one end portion is fixed to the mold case 7 and is elastically deformed with the support fixing portion 20 as a base point.

  The elastic movable portion 21 is formed in an elongated plate shape, and a support fixing portion 20 that is press-fitted into the terminal press-fit portion 13 is formed at one end of the elastic movable portion 21 and can be rotated in the plate thickness direction with the support fixing portion 20 as a base point. In this state, it is arranged between the side wall part 11a and the fixed contact support wall part 12.

  The curved portion 22 includes a detour portion 25 that is bent in an arc shape from the end of the elastic movable portion 21, and an oblique extension that extends obliquely from the other end of the detour portion 25 toward the other side wall 11. The extended piece 26 and a folded piece 27 that is bent in an arc shape from the tip of the oblique extended piece 26, are supported by a fixed contact from an end of the elastic movable portion 21 opposite to the support and fixed portion 20. The end portion of the wall portion 12 is bypassed and formed in a shape curved toward the inside of the fixed contact support wall portion 12, that is, toward the other side wall portion 11b.

  The operated portion 23 is formed in a shape extending obliquely from the distal end side of the bending portion 22, that is, from the distal end side of the folded-back piece 27 toward the rotating lever 6, and the outer surface thereof is connected to the rotating lever 6. They are always in elastic contact with each other.

  The contact support portion 24 is formed in a shape bent from the distal end side of the operated portion 23 toward the fixed contact support wall portion 12 side, and the movable contact portion 4 formed in an arc shape is formed at the distal end portion. .

  The movable contact terminal 5 is formed in a “U” shape with an elastic movable portion 21, a bending portion 22, an operated portion 23, and a contact support portion 24, and presses the outer surface of the operated portion 23 by the rotating lever 6. Thus, the movable contact portion 4 is moved along the inner surface of the fixed contact support wall portion 12 to be moved between a position in contact with the fixed contact portion 3a and a non-contact position.

  The movable contact terminal 5 configured as described above has a configuration in which the elastic movable portion 21 is disposed between the side wall portion 11a and the fixed contact support wall portion 12, thereby overlapping the inner peripheral direction of the housing 21. , 24, whereby the span of the elastically deformable portion can be lengthened by the length of the elastic movable portion 21.

  The rotation lever 6 includes a rotation unit 31 that is rotatably supported on the substrate unit 10 of the mold case 7 via a rotation shaft 30, and a direction orthogonal to the rotation shaft 30 from an outer edge portion of the rotation unit 31. And a rod-like operation portion 32 that is directed toward the center, and the operation portion 32 is inclined with respect to one side edge of the housing 2 around the rotation shaft 30 and to a side edge. It is designed to rotate between the pushing position in the horizontal direction. Incidentally, reference numeral 40 in the drawing denotes a stopper portion that restricts the movement of the turning lever 6 in the raising direction at the origin position.

  In addition, a pressing portion 33 is integrally provided at the outer edge of the rotating portion 31 at a position spaced apart from the operating portion 32 in the rotating direction, and the pressing portion 33 always contacts the operated portion 23 of the movable contact terminal 5. In contact with each other, the pivot lever 6 is raised and biased in the direction at the origin position.

  On the other hand, when the operating portion 32 is pushed and the operating lever 6 is rotated in the pushing direction from the origin position, as shown in FIG. 3, the pressing portion 33 moves the operated portion 23 toward the fixed contact support wall 12 side. Then, the movable contact terminal 5 is deformed, so that the movable contact portion 4 moves along the inner surface of the fixed contact support wall portion 12 and comes into contact with the fixed contact portion 3.

  At this time, the fixed contact support wall portion 12 is formed in a shape in which the fixed contact portion 3a side in the direction along the side wall portion 11 is inclined inward, so that the pressing force by the rotating lever 6 is applied to the movable contact portion 4. The reaction force from the fixed contact support wall portion 12 is suitably transmitted to the rotating lever 6 through the movable contact terminal 5.

  In the above-described embodiment, an example in which the rotary lever 6 is used as the operation member has been described. However, the operation member has a configuration in which the movable contact terminal 5 is pressed by sliding movement. Also good.

  In the above-described embodiment, the example in which the elastic movable portion is arranged at one end of the movable contact terminal 5 has been described. However, the elastic movable portion is arranged in the middle of the movable contact terminal. Also good.

  Further, in the above-described embodiment, the example in which the fixed contact support wall portion is provided inside the side wall portion 11a to which one end of the movable contact terminal is fixed has been described, but it is different from the side wall portion 11a to which one end of the movable contact terminal is fixed. You may make it arrange | position a fixed contact support wall part inside the side wall parts 11b and 11c.

DESCRIPTION OF SYMBOLS 1 Switch 2 Housing 3 Fixed contact terminal 4 Movable contact part 5 Movable contact terminal 6 Rotating lever 7 Mold case 8 Shield cover 10 Substrate part 11 Side wall part 12 Fixed contact support wall part 13 Terminal press-fit part 14 Common terminal 20 Support fixed part 21 Elastic movable part 22 Bending part 23 Operated part 24 Contact support part 25 Detour part piece 26 Diagonal extension part 27 Folding part 30 Rotating shaft 31 Rotating part 32 Operating part 33 Pressing part

Claims (3)

A mold case having a flat plate-like substrate portion and a side wall portion raised from a side edge of the substrate portion, a fixed contact terminal having a fixed contact portion exposed in the mold case, and one end portion of the mold case A spring-like movable contact terminal fixed to the mold case and having a movable contact portion that contacts the fixed contact portion at the other end; and an operation member supported movably by the mold case, In the switch, the movable contact terminal is pressed and deformed in conjunction with the movement of the operation member, and the movable contact portion moves between a position in contact with the fixed contact portion and a non-contact position. ,
The mold case includes a fixed contact support wall portion inside the side wall portion, and exposes the fixed contact portion on an inner surface of the fixed contact support wall portion,
The movable contact terminal includes an elastic movable portion disposed between the side wall portion and the movable contact support wall portion, and bypasses an end portion of the fixed contact support wall portion from one end of the elastic movable portion. A curved portion curved to the fixed contact portion side of the support wall portion, and the movable contact portion arranged on the distal end side of the curved portion contacts the fixed contact portion inside the fixed contact support wall portion. A switch that is characterized by that.   The switch according to claim 1, wherein the fixed contact support wall portion is formed in a shape in which a fixed contact portion side in a direction along the side wall portion is inclined inward. The switch according to claim 1, wherein the operation member is a rotation lever that is rotatably supported by the substrate unit.

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