WO2021261357A1 - 切り換えスイッチ - Google Patents
切り換えスイッチ Download PDFInfo
- Publication number
- WO2021261357A1 WO2021261357A1 PCT/JP2021/022931 JP2021022931W WO2021261357A1 WO 2021261357 A1 WO2021261357 A1 WO 2021261357A1 JP 2021022931 W JP2021022931 W JP 2021022931W WO 2021261357 A1 WO2021261357 A1 WO 2021261357A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuator
- cam
- changeover switch
- slider
- fixed contact
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/20—Driving mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/04—Cases; Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
- H01H13/30—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs one end of spring transmitting movement to the contact member when the other end is moved by the operating part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/004—Two parallel coil springs
Definitions
- the present invention relates to a changeover switch.
- the case, the slider, the first actuator that rotates downward by being pushed down by the slider, the second actuator that holds the movable contact member, and the movable contact member come into contact with each other. It has a first fixed contact, a second fixed contact, and a cam ridge that is rotatably supported by a second actuator and abuts on the lower inclined surface of the first actuator, with the cam ridge down.
- a cam that rotates downward by being pushed down while sliding on the side inclined surface and a urging member that urges the cam upward are provided, and the cam is such that the first actuator rotates downward by a predetermined angle.
- the cam ridge slides up the lower inclined surface due to the urging force from the urging member, so that the second actuator is pulled up and the contact partner of the movable contact member is moved from the first fixed contact to the second. Switch to a fixed contact.
- the figure for demonstrating the operation of the changeover switch which concerns on one Embodiment The figure for demonstrating the operation of the changeover switch which concerns on one Embodiment.
- the figure for demonstrating the operation of the changeover switch which concerns on one Embodiment.
- the figure for demonstrating the operation of the changeover switch which concerns on one Embodiment.
- the figure for demonstrating the operation of the changeover switch which concerns on one Embodiment.
- the figure for demonstrating the operation of the changeover switch which concerns on one Embodiment. The figure for demonstrating the operation of the changeover switch which concerns on one Embodiment.
- the figure for demonstrating the operation of the changeover switch which concerns on one Embodiment The figure for demonstrating the operation of the changeover switch which concerns on one Embodiment.
- the figure for demonstrating the operation of the changeover switch which concerns on one Embodiment.
- the figure for demonstrating the operation of the changeover switch which concerns on one Embodiment.
- Side view of the first actuator according to the first modification Side view of the first actuator according to the second modification.
- the Z-axis direction (sliding direction of the slider 130) in the figure is the vertical direction
- the Y-axis direction in the figure is the horizontal direction
- the changeover switch 100 includes a case 110, a slider 130, and a holder 150.
- the case 110 has a hollow structure with an open upper part and a rectangular parallelepiped shape.
- the upper opening of the case 110 is closed by a flat plate lid 112.
- the lid 112 is formed with a circular opening 112A (see FIG. 4) for penetrating the slider 130.
- a columnar shaft support 112B is provided on the lower surface of the lid 112 so as to hang downward.
- a first shaft portion 112C (see FIG. 30) having a curved tip and a downward convex shape is formed.
- the first shaft portion 112C abuts on the upper bearing surface 161A (see FIGS. 10 and 11) of the first actuator 161 included in the movable unit 160, so that the first actuator 161 is mounted from above the first actuator 161.
- the shaft is rotatably supported.
- the slider 130 is a substantially columnar member that is pressed and operated.
- the slider 130 is provided so as to penetrate the opening 112A of the lid 112, and a part thereof is provided so as to project upward from the upper surface of the lid 112. Further, the slider 130 is provided so as to be slidable in the vertical direction (Z-axis direction) with respect to the case 110.
- the changeover switch 100 can switch the conduction state by pressing the slider 130. Specifically, the changeover switch 100 is in the first conduction state when the slider 130 is not pressed. Then, when the slider 130 is pressed, the changeover switch 100 switches to the second conduction state.
- the holder 150 is an annular member that covers the upper surface of the lid 112 and surrounds the slider 130.
- the holder 150 has a pair of hooks 152 hanging downward from its outer peripheral edge.
- the holder 150 is attached to the case 110 by engaging each of the pair of hooks 152 with each of the pair of claws 114 provided on each of the pair of parallel side surfaces of the case 110.
- the holder 150 fixes the lid 112 to the case 110.
- the holder 150 is formed by processing a metal plate.
- FIG. 4 is an exploded perspective view of the changeover switch 100 according to the embodiment.
- FIG. 5 is a cross-sectional view of the changeover switch 100 according to the embodiment.
- FIG. 6 is a perspective sectional view of the changeover switch 100 according to the embodiment.
- the changeover switch 100 includes a holder 150, a lid 112, a slider 130, a movable unit 160, and a case 110. That is, the changeover switch 100 further includes a movable unit 160 in addition to the configurations described with reference to FIGS. 1 to 3.
- the movable unit 160 is provided inside the case 110.
- the movable unit 160 is configured by combining a plurality of movable parts.
- the movable unit 160 operates according to the vertical movement accompanying the pressing operation of the slider 130, so that the changeover switch 100 is switched between the first conduction state and the second conduction state by a snap action.
- the specific configuration of the movable unit 160 will be described later with reference to FIGS. 10 and 11.
- the case 110 has a space 110A having an open upper portion. A part of the lower side of the slider 130 and the movable unit 160 are housed in the space 110A.
- the case 110 is formed by injection molding a relatively hard insulating material (for example, hard resin or the like).
- the inner wall surface on the positive side of the X-axis exposed to the space 110A in the case 110 has a constant width in the Y-axis direction and is linear in the vertical direction (Z-axis direction).
- a guide rib 110C is formed extending to the guide rib 110C.
- the guide rib 110C is provided to guide the downward slide of the first actuator 161.
- the second shaft portion 110D (see FIG. 25) formed in the upper corner portion of the guide rib 110C abuts on the lower bearing surface 161F of the first actuator 161 from the lower side of the first actuator 161.
- the actuator 161 of 1 is rotatably supported.
- terminal portions 170 are provided side by side in the left-right direction (Y-axis direction) on the bottom portion 110B exposed to the space 110A in the case 110. ..
- the terminal portion 170A is provided on the negative side of the Y-axis of the bottom portion 110B.
- the terminal portion 170B is provided on the positive side of the Y-axis of the bottom portion 110B.
- the terminal portion 170A and the terminal portion 170B are line-symmetrical with each other with a straight line extending at an intermediate position between them in the X-axis direction as a target axis.
- the terminal portions 170A and 170B include a first fixed contact 171 and a second fixed contact 172, a third fixed contact 173, a terminal holder 174, and a terminal holder 175, respectively. ..
- Each fixed contact 171 to 173 is formed by processing (for example, pressing) a metal plate.
- Each of the fixed contacts 171 to 173 has a shape that stands perpendicular to the bottom 110B on one end side thereof, and penetrates the bottom 110B on the other end side and runs along the bottom surface of the case 110. It has a shape that extends to the side of 110.
- Each fixed contact 171 to 173 included in the terminal portion 170A has a shape extending to the side on the negative side of the Y axis of the case 110.
- Each of the fixed contacts 171 to 173 included in the terminal portion 170B has a shape extending to the side on the positive side of the Y axis of the case 110.
- the third fixed contact 173 is provided on the bottom 110B on the positive side of the X axis with respect to the center in the X axis direction.
- the third fixed contact 173 is held by the terminal holder 174.
- the terminal holder 174 is formed integrally with the third fixed contact 173 by using an insulating material.
- the second fixed contact 172 is provided at the center of the bottom 110B in the X-axis direction.
- the first fixed contact 171 is provided on the bottom 110B on the negative side of the X-axis with respect to the center in the X-axis direction.
- the second fixed contact 172 and the first fixed contact 171 are held by the terminal holder 175.
- the terminal holder 175 is formed integrally with the second fixed contact 172 and the first fixed contact 171 by using an insulating material.
- the first fixed contact 171 and the third fixed contact 173 are the movable contact member 165 included in the movable unit 160 (FIG. 10). And (see FIG. 11), they are in a state of being electrically connected to each other.
- the changeover switch 100 in the second conduction state (state in which the slider 130 is pressed), the second fixed contact 172 and the third fixed contact 173 are interposed via the movable contact member 165 included in the movable unit 160. Therefore, they are in a state of being electrically connected to each other.
- FIG. 10 is an external perspective view of the movable unit 160 included in the changeover switch 100 according to the embodiment.
- FIG. 11 is an exploded perspective view of the movable unit 160 included in the changeover switch 100 according to the embodiment.
- the movable unit 160 includes a first actuator 161 and a cam 162, a torsion spring 163, a second actuator 164, and a pair of movable contact members 165.
- the cam 162, the torsion spring 163, the second actuator 164, and the pair of movable contact members 165 are combined and integrated with each other as shown in FIG.
- the first actuator 161 is an arm-shaped member extending from the positive side of the X-axis of the case 110 toward the negative side of the X-axis.
- the first actuator 161 is rotatably provided with respect to the inner wall surface on the positive side of the X-axis of the case 110 with the upper bearing surface 161A and the lower bearing surface 161F provided at the rear end as rotation centers. ing.
- the rotatable configuration of the first actuator 161 will be described later in FIGS. 23 and 23.
- the first actuator 161 rotates downward by being pushed down by the slider 130 at the upper contact surface 161B provided on each step portion on both sides in the left-right direction (Y-axis direction).
- the first actuator 161 pushes the cam 162 downward on the lower inclined surface 161C provided on the lower side of the central portion on the tip end side (X-axis negative side).
- the first actuator 161 maintains a state of being rotated by a predetermined angle when the slider 130 pushes the first actuator further downward from the state where the downward rotation is restricted (that is, when the slider 130 is overstroked). While still, it slides downward together with the slider 130 along the guide rib 110C (see FIG. 7) formed on the inner wall surface on the positive side of the X-axis of the case 110.
- the cam 162 is a rotatable arm-shaped member extending diagonally upward from the negative side of the X axis toward the positive side of the X axis in the space 110A of the case 110.
- the cam 162 has a pair of left and right arm portions 162A extending diagonally upward from the negative side of the X axis toward the positive side of the X axis.
- Each rear end portion (end portion on the negative side of the X-axis) of each of the pair of arm portions 162A is provided with a rotation shaft portion 162B protruding inward.
- the cam 162 when the slider 130 is pushed down to a predetermined height position, the cam ridge portion 162C slides up the lower inclined surface 161C of the first actuator 161 so that the rotation shaft portion 162B becomes a second. Pull up the shaft support 164A of the actuator 164. As a result, the cam 162 switches the contact partner of the movable contact member 165 held by the second actuator 164 from the first fixed contact 171 to the second fixed contact 172.
- the torsion spring 163 is an elastic metal member.
- the torsion spring 163 urges the upper surface of the second actuator 164 downward on one arm 163A and urges the cam 162 upward on the other arm 163B.
- the second actuator 164 rotatably supports the rotating shaft portion 162B of the cam 162 by the shaft support portion 164A. Further, the second actuator 164 holds a pair of movable contact members 165. The second actuator 164 is pressed against the inner bottom surface of the case 110 by the urging force from the torsion spring 163. In the second actuator 164, when the slider 130 is pushed down to a predetermined height position, the shaft support portion 164A is instantaneously pulled upward by the rotation shaft portion 162B of the cam 162. As a result, the second actuator 164 sets the contact position of the first contact portion 165A provided at the rear end portion of each of the pair of movable contact members 165 from the first fixed contact 171 to the second fixed contact 172. Instantly switch to and perform a snap action operation.
- the first contact portion 165A has a shape that sandwiches the first fixed contact 171 and the second fixed contact 172 from both the left and right sides, and has a shape that can be elastically deformed in the left-right direction. There is. As a result, the first contact portion 165A can reliably sandwich the first fixed contact 171 and the second fixed contact 172 from both the left and right sides, and thus the first fixed contact 171 and the second fixed contact 171 and the second fixed contact 172. Poor contact with the contact 172 can be suppressed.
- FIG. 12 shows a state (first state) in which the slider 130 is not pressed.
- the pressing surface 130A provided at the lower end of the slider 130 is in contact with the cam ridge 162C provided at the tip of the cam 162.
- the movable contact member 165 held by the second actuator 164 is in a horizontal state, and the first contact portion 165A is in contact with the first fixed contact 171.
- the second contact portion 165B is in contact with the third fixed contact 173. That is, the changeover switch 100 is in the first conduction state.
- the changeover switch 100 enables an instant changeover operation by a snap action.
- FIG. 18 shows a state in which the slider 130 is pushed down most by the overstroke of the slider 130.
- the cam ridge portion 162C By exceeding the frictional resistance of the cam ridge portion 162C, the cam ridge portion 162C instantaneously slides up the lower inclined surface 161C toward the tip end portion of the first actuator 161.
- the pulling up of the shaft support portion 164A of the second actuator 164 by the rotating shaft portion 162B of the cam 162 is eliminated, that is, the second actuator 164 has the second contact portion 165B and the second contact portion 165B of the movable contact member 165. It instantly rotates downward with the contact point with the fixed contact 173 of 3 as the center of rotation.
- FIG. 22 shows a state in which the slider 130 is pushed up most (initial state).
- FIG. 23 is an external perspective view of the first actuator 161 according to the embodiment as viewed from above.
- FIG. 24 is an external perspective view of the first actuator 161 according to the embodiment as viewed from below.
- the first actuator 161 faces the cam 162 side (X-axis negative side) at the center of the left-right direction (Y-axis direction) on the tip side (X-axis negative side). Has a protruding tip shape.
- An upper contact surface 161B pushed down by the slider 130 is formed at each step portion on both sides of the first actuator 161 in the left-right direction (Y-axis direction).
- a lower inclined surface 161C that pushes down the cam 162 is formed on the lower side of the central portion on the distal end side of the first actuator 161.
- the first actuator 161 has a certain width in the central portion in the left-right direction (Y-axis direction) of the rear end portion (end portion on the positive side of the X-axis). It has a guide groove 161E cut out along the front-rear direction (X-axis direction). As a result, the rear end portion of the first actuator 161 has a shape having a pair of left and right leg portions 161H with the guide groove 161E interposed therebetween.
- each of the pair of leg portions 161H of the first actuator 161 is provided with a curved upper bearing surface 161A exposed upward.
- the first actuator 161 has a curved surface shape exposed downward (that is, exposed to the guide groove 161E) at the rear end portion of the central portion in the left-right direction (Y-axis direction). It has a lower bearing surface 161F.
- FIG. 25 is a perspective sectional view taken from above of the case 110 (state in which the first actuator 161 is not arranged) according to the embodiment.
- FIG. 26 is a perspective sectional view taken from above of the case 110 (state in which the first actuator 161 is arranged) according to the embodiment.
- FIG. 27 and 28 are perspective sectional views of the case 110 (state in which the first actuator 161 is arranged) according to the embodiment as viewed from the side.
- FIG. 27 shows a cross section of cutting only the case 110.
- FIG. 28 shows a cross section of the first actuator 161 that cuts the central portion in the left-right direction.
- the first actuator 161 sandwiches the guide rib 110C formed on the inner wall surface on the positive side of the X axis of the case 110 from both the left and right sides by the pair of leg portions 161H (that is,).
- the guide rib 110C is fitted in the guide groove 161E).
- the width of the guide groove 161E is substantially the same as the width of the guide rib 110C formed on the inner wall surface on the positive side of the X axis of the case 110.
- the first actuator 161 can slide in the vertical direction (Z-axis direction) along the guide rib 110C while the backlash in the left-right direction (Y-axis direction) is suppressed by the guide rib 110C during the overstroke of the slider 130. Is.
- the lower bearing surface 161F of the first actuator 161 is attached to the upper corner portion of the guide rib 110C when the first actuator 161 is arranged at the upper end portion of the guide rib 110C.
- the second shaft portion 110D is bearing.
- the upper bearing surface 161A of the first actuator 161 is formed at the lower end portion of the shaft support portion 112B (see FIG. 4) provided so as to hang downward from the lower surface of the lid 112.
- the first shaft portion 112C is abutted against the first shaft portion 112C to bearing the first shaft portion 112C.
- the overhanging portion 161G abuts on the upper end surface 130D of the slide groove 130C, whereby the first actuator 161 is further rotated. To regulate.
- the changeover switch 100 has a case 110, a slider 130 that slides in the vertical direction when pressed, and a first that rotates downward when pushed down by the slider 130.
- Actuator 161 and the second actuator 164 holding the movable contact member 165, the first fixed contact 171 and the second fixed contact 172 to which the movable contact member 165 contacts, and the second actuator 164 Has a cam ridge 162C that is axially supported by the first actuator and abuts on the lower inclined surface 161C, and the cam ridge 162C is pushed down while sliding on the lower inclined surface 161C to rotate downward.
- the cam 162 is provided with a torsion spring 163 for urging the cam 162 upward, and the cam 162 has a cam ridge due to the urging force from the torsion spring 163 when the first actuator 161 rotates downward by a predetermined angle.
- the portion 162C instantaneously slides up the lower inclined surface 161C to pull up the second actuator 164 and instantly move the contact partner of the movable contact member 165 from the first fixed contact 171 to the second fixed contact 172. Switch.
- the changeover switch 100 uses the torsion spring 163 to urge the slider 130 in the return direction, so that the changeover switch 100 is compared with a conventional changeover switch that uses a coil spring to urge the slider in the return direction. Therefore, the size in the horizontal direction (X-axis direction and Y-axis direction) can be reduced. Therefore, according to the changeover switch 100 according to the embodiment, the changeover switch can be further miniaturized.
- the changeover switch 100 when the second actuator 164 is pulled up by the cam 162, the movable contact member 165 is kept in contact with the third fixed contact 173 while being brought into contact with the movable contact member 165.
- the contact partner of the movable contact member 165 is instantaneously switched from the first fixed contact 171 to the second fixed contact 172.
- the changeover switch 100 uses the contact position between the movable contact member 165 and the third fixed contact 173 as a fulcrum, thereby separately providing a fulcrum for rotating the second actuator 164. Since it is not necessary to provide the second actuator 164, the configuration related to the rotation can be a relatively simple configuration.
- the second actuator 164 has a shaft support portion 164A that supports the rotation shaft portion 162B of the cam 162, and the cam 162 is second by the rotation shaft portion 162B.
- the contact partner of the movable contact member 165 is switched from the first fixed contact 171 to the second fixed contact 172.
- the changeover switch 100 has a relatively simple configuration using one torsion spring 163 to urge the slider 130 in the return direction and to move the second actuator 164 into the case 110. Both can be achieved by pressing against the bottom.
- the first actuator 161 is restricted from further downward rotation when the slider 130 moves downward to a predetermined height position.
- the changeover switch 100 can prevent the first actuator 161 from over-rotating downward.
- the slider 130 has a slide groove in which the overhanging portion 161G of the first actuator 161 slides in the vertical direction, and the first actuator 161 has a slider having a predetermined height.
- the overhanging portion 161G moves downward to the vertical position, the overhanging portion 161G abuts on the upper end surface of the slide groove, so that further downward rotation is restricted.
- the first actuator 161 deviates from the rotation axis when the slider 130 moves downward to a predetermined height position.
- the changeover switch 100 can further move the first actuator 161 downward beyond the center of rotation when the slider 130 is pushed further downward, and thus the slider 130. It is possible to realize a further downward slide of.
- the changeover switch 100 can realize the overstroke of the slider 130. At that time, the changeover switch 100 according to the embodiment can further push down the cam 162 by the first actuator 161 that slides downward while the rotation angle of the first actuator 161 is fixed.
- the guide rib 110C has a second shaft portion 110D at the upper end portion
- the first actuator 161 has a lower bearing surface 161F, and the lower bearing surface 161F.
- the lower bearing surface 161F falls off from the second shaft portion 110D due to the motion, and thus deviates from the rotation shaft.
- the upper bearing surface 161A of the first actuator 161 becomes the lid 112 when the slider 130 returns to a predetermined height position.
- the first actuator 161 rotates while being pivotally supported by the 1-axis portion 112C.
- the first actuator 161 is pushed up by the cam ridge portion 162C of the cam 162, so that the first actuator 161 rotates upward with the first shaft portion 112C as the rotation center.
- FIG. 33 is a side view of the first actuator 161-2 according to the first modification. As shown in FIG. 33, in the first actuator 161-2 according to the first modification, the shape of the lower inclined surface 161C is different from that of the first actuator 161 and the other configurations are different from those of the first actuator 161. It is the same.
- the first actuator 161 has a planar shape in which the lower inclined surface 161C has a constant inclination angle.
- the lower inclined surface 161C has a multi-faceted shape in which two inclined portions 161Ca and 161Cb having different inclination angles are connected to each other.
- the lower inclined surface 161C of the first actuator 161-2 has a planar first inclined portion 161Ca on the tip end side (X-axis negative side) of the lower inclined surface 161C.
- a planar second inclined portion 161Cb following the first inclined portion 161Ca is provided on the rear end side (X-axis positive side) of the lower inclined surface 161C.
- the second inclined portion 161Cb has a steeper inclination angle than the first inclined portion 161Ca.
- the cam ridge portion 162C of the cam 162 slides up the lower inclined surface 161C of the first actuator 161-2 toward the tip side, the cam The sliding speed of the mountain part 162C can be changed in two stages.
- the inclination angle of the second inclined portion 161Cb is relatively steep, so that the cam mountain portion 162C slides.
- the speed of climbing can be relatively high.
- the sliding start speed of the cam ridge 162C can be increased, and for example, the cam ridge 162C is caught at the start of sliding. It is possible to make it difficult for defects to occur.
- the lower inclined surface 161C has two inclined portions 161Ca so that the speed at which the cam ridge portion 162C slides up is the highest during the switching operation by the snap action. , 161Cb.
- the switching speed of the switching operation by the snap action can be increased, and for example, the effect of suppressing the generation of arc discharge in the switching operation is achieved. Can be played.
- FIG. 34 is a side view of the first actuator 161-3 according to the second modification. As shown in FIG. 33, in the first actuator 161-3 according to the second modification, the shape of the lower inclined surface 161C is different from that of the first actuator 161 and the other configurations are different from those of the first actuator 161. It is the same.
- the first actuator 161 has a planar shape in which the lower inclined surface 161C has a constant inclination angle.
- the lower inclined surface 161C has a curved surface shape in which the curvature gradually changes.
- the lower inclined surface 161C of the first actuator 161-3 has a rear end portion (X-axis positive side end portion) to a tip portion (X-axis negative side end portion) of the lower inclined surface 161C. ), It has a curved surface shape in which the curvature gradually increases and the inclination angle gradually becomes gentle.
- the lower inclined surface 161C of the first actuator 161-2 has a first inclined portion 161Cc having a relatively gentle inclination angle on the tip end side (X-axis negative side) of the lower inclined surface 161C.
- the lower inclined surface 161C has a second inclined portion 161Cd having a relatively gentle inclination angle following the first inclined portion 161Cc on the rear end side (X-axis positive side).
- the cam ridge portion 162C of the cam 162 slides up the lower inclined surface 161C of the first actuator 161-3 toward the tip side, the cam The sliding acceleration of Yamabe 162C can be gradually changed.
- the inclination angle of the second inclined portion 161Cd is relatively steep.
- the sliding acceleration of the cam ridge 162C can be made relatively large.
- the sliding start speed of the cam ridge 162C can be increased, and for example, the cam ridge 162C is caught at the start of sliding. It is possible to make it difficult for defects to occur.
- the lower inclined surface 161C has a curved surface shape along the brachistochrone curve (cycloid).
- the brachistochrone curve (cycloid) is a curve drawn by a certain point when a circle is rolled. For example, when a ball is rolled on each of a straight line, an arc, and a brachistochrone curve (cycloid), the ball rolling on the brachistochrone curve (cycloid) reaches the end point fastest.
- the time required for the cam ridge portion 162C to reach the tip end portion of the lower inclined surface 161C can be shortened.
- the switching speed of the switching operation by the snap action can be increased, and for example, the effect of suppressing the generation of arc discharge in the switching operation is achieved. Can be played.
- 35A to 35D are diagrams showing an example of the sliding-up operation of the cam ridge 162C with respect to the first actuator 161-3 according to the second modification.
- the lower inclined surface 161C gradually changes from the rear end portion (the end portion on the positive side of the X axis) to the tip end portion (the end portion on the positive side of the X axis). It is formed in a curved surface shape in which the inclination angle gradually becomes gentle toward the end on the negative side of the X-axis), and in particular, it is formed in a curved surface shape along the brachistochrone curve (cycloid).
- the first actuator 161-3 according to the second modification is the second inclined portion 161Cd (FIG. 34) on the rear end side (X-axis positive side) of the lower inclined surface 161C. (See)
- the inclination angle is relatively steep, the sliding acceleration of the cam ridge 162C when the cam ridge 162C slides up the second inclined portion 161Cd can be made relatively large.
- the first actuator 161-3 according to the second modification is the first inclined portion 161Cc on the tip end side (X-axis negative side) of the lower inclined surface 161C (FIG. 35C).
- the inclination angle is relatively gentle, the sliding acceleration of the cam mountain portion 162C when the cam mountain portion 162C slides up the first inclined portion 161Cc can be gradually moderated. ..
Abstract
Description
図1は、一実施形態に係る切り換えスイッチ100の外観斜視図である。図2は、一実施形態に係る切り換えスイッチ100の平面図である。図3は、一実施形態に係る切り換えスイッチ100の側面図である。
図4は、一実施形態に係る切り換えスイッチ100の分解斜視図である。図5は、一実施形態に係る切り換えスイッチ100の断面図である。図6は、一実施形態に係る切り換えスイッチ100の斜視断面図である。
図7は、一実施形態に係る切り換えスイッチ100が備えるケース110の断面図である。図8は、一実施形態に係る切り換えスイッチ100が備える端子部170の外観斜視図である。図9は、一実施形態に係る切り換えスイッチ100が備える端子部170(端子ホルダ174,175を省いた状態)の外観斜視図である。
図10は、一実施形態に係る切り換えスイッチ100が備える可動ユニット160の外観斜視図である。図11は、一実施形態に係る切り換えスイッチ100が備える可動ユニット160の分解斜視図である。
図12~図22は、一実施形態に係る切り換えスイッチ100の動作を説明するための図である。
図12は、スライダ130の押下操作がなされていない状態(第1の状態)を表している。この第1の状態において、スライダ130の下端部に設けられた押圧面130Aが、カム162の先端に設けられているカム山部162Cと当接している。また、この第1の状態において、第2のアクチュエータ164によって保持されている可動接点部材165は、水平な状態にあり、第1の接点部165Aが第1の固定接点171に接触しており、第2の接点部165Bが第3の固定接点173に接触している。すなわち、切り換えスイッチ100は、第1の導通状態にある。
図12に示す第1の状態から、スライダ130の押下操作が開始されると、図13に示すように、スライダ130の押圧面130Aが、カム162のカム山部162Cを下方に押し下げる。これにより、カム162は、第2のアクチュエータ164の軸支部164Aによって軸支されている回動軸部162Bを回動中心として、下方への回動を開始する。
さらに、図13に示す第2の状態から、スライダ130が僅かに下方へスライドしたとき、図14に示すように、第1のアクチュエータ161の下側傾斜面161Cが、カム162のカム山部162Cに当接する。以降、カム162のカム山部162Cは、スライダ130の押圧面130Aから離間し、第1のアクチュエータ161の下側傾斜面161Cによって押し下げられる。
そして、図15に示すように、第1のアクチュエータ161が所定角度まで下方に回動したとき、第1のアクチュエータ161の回動が規制される。このとき、トーションばね163からの付勢力により、カム162のカム山部162Cが第1のアクチュエータ161の下側傾斜面161Cを滑り上がろうとする力が、カム山部162Cと下側傾斜面161Cとの摩擦抵抗を上回ることで、カム山部162Cが、下側傾斜面161Cを、当該下側傾斜面161Cの頂部161Dに向かって瞬時に滑り上がり、当該頂部161Dに入り込んで停止する。この際、頂部161Dが緩やかな曲面状であるため、カム山部162Cと頂部161Dとの当接音は抑制されたものとなる。
これにより、図16に示すように、カム162の回動軸部162Bが、第2のアクチュエータ164の軸支部164Aを瞬時に上方に引き上げる。この際、第2のアクチュエータ164は、当該第2のアクチュエータ164によって保持されている可動接点部材165の第2の接点部165Bと第3の固定接点173との接触点(すなわち、第3の固定接点173の折り曲げ部)を支点として、上方に回動する。これにより、第2のアクチュエータ164によって保持されている可動接点部材165の第1の接点部165Aの接触位置が、第1の固定接点171から第2の固定接点172に瞬時に切り替わる。その結果、第2の固定接点172と第3の固定接点173とが可動接点部材165を介して互いに導通し、すなわち、切り換えスイッチ100は、第2の導通状態に切り替わる。これにより、切り換えスイッチ100は、スナップアクションによる瞬時の切り換え操作を可能とする。
さらに、図17に示すように、スライダ130が切り換え操作後にさらに押し下げられるオーバーストロークによって、スライダ130がさらに下方へ押し下げられると、第1のアクチュエータ161が、回動角度が固定されたまま、カム162のカム山部162Cを押し下げながら、スライダ130とともに下方へスライドする。この際、第1のアクチュエータ161のスライドは、ケース110のX軸正側の内壁面に設けられたガイドリブ110Cによってガイドされる。また、この際、第1のアクチュエータ161は、回動中心となっていた蓋112の第1軸部112Cから徐々に下方へ離れてゆく。
そして、図18に示すように、図5に示すスライダ130の下端部130Eとケース110の底部110Bとが当接するまで、スライダ130が押し下げられると、スライダ130および第1のアクチュエータ161の下方へのスライドが停止する。すなわち、図18は、スライダ130のオーバーストロークによって、スライダ130が最も押し下げられた状態を表している。
具体的には、図18に示す第7の状態から、図19に示すように、トーションばね163からの付勢力によって、カム162のカム山部162Cが、第1のアクチュエータ161を上方に押し上げる。これにより、第1のアクチュエータ161が、回動角度が固定されたまま、スライダ130を押し上げながら、上方へスライドする。この際、第1のアクチュエータ161のスライドは、ケース110のX軸正側の内壁面に設けられたガイドリブ110Cによってガイドされる。そして、図19に示すように、第1のアクチュエータ161が、蓋112の第1軸部112Cに当接すると、第1のアクチュエータ161の上方へのスライドは停止する。
以降、図20Aに示すように、第1のアクチュエータ161は、カム162のカム山部162Cによって押し上げられると、蓋112の第1軸部112Cに軸支されながら上方に回動し、スライダ130を押し上げる。なお、第1のアクチュエータ161が蓋112の第1軸部112Cに回動可能に軸支される様子は、図20Bに示される。そして、トーションばね163からの付勢力により、カム162のカム山部162Cが第1のアクチュエータ161の下側傾斜面161Cを滑り上がろうとする力が、カム山部162Cと下側傾斜面161Cとの摩擦抵抗を上回ることで、カム山部162Cが、第1のアクチュエータ161の先端部に向かって、下側傾斜面161Cを瞬時に滑り上がる。これに伴い、カム162の回動軸部162Bによる第2のアクチュエータ164の軸支部164Aの引き上げは解消し、すなわち、第2のアクチュエータ164は、可動接点部材165の第2の接点部165Bと第3の固定接点173との接触点を回動中心として、下方へ瞬時に回動する。
そして、図21に示すように、第2のアクチュエータ164が下方へ瞬時に回動するとき、第2のアクチュエータ164によって保持されている可動接点部材165の第1の接点部165Aの接触位置が、第2の固定接点172から第1の固定接点171に瞬時に切り替わる。その結果、第1の固定接点171と第3の固定接点173とが可動接点部材165を介して互いに導通し、すなわち、切り換えスイッチ100は、第1の導通状態に瞬時に切り替わる。これにより、切り換えスイッチ100は、スナップアクションによる瞬時の切り換え操作を可能とする。また、図21に示すように、カム162のカム山部162Cの接触位置が、第1のアクチュエータ161の下側傾斜面161Cから、スライダ130の押圧面130Aに切り替わると、第1のアクチュエータ161の上方への回動が終了し、カム162のカム山部162Cが、スライダ130の押圧面130Aを上方へ付勢し、直接的にスライダ130を上方にスライドさせる。
そして、図22に示すように、スライダ130が蓋112の下面に当接すると、スライダ130の上方へのスライドが停止する。すなわち、図22は、スライダ130が最も押し上げられた状態(初期状態)を表している。
次に、図23~図30を参照して、第1のアクチュエータ161の回動可能な構成について説明する。
図31および図32は、一実施形態に係る第1のアクチュエータ161およびスライダ130の外観斜視図である。
図33は、第1変形例に係る第1のアクチュエータ161-2の側面図である。図33に示すように、第1変形例に係る第1のアクチュエータ161-2は、下側傾斜面161Cの形状が、第1のアクチュエータ161と異なり、その他の構成は、第1のアクチュエータ161と同一である。
図34は、第2変形例に係る第1のアクチュエータ161-3の側面図である。図33に示すように、第2変形例に係る第1のアクチュエータ161-3は、下側傾斜面161Cの形状が、第1のアクチュエータ161と異なり、その他の構成は、第1のアクチュエータ161と同一である。
110 ケース
110A 空間
110B 底部
110C ガイドリブ
110D 第2軸部
112A 開口部
112 蓋
112A 開口部
112B 軸支部
112C 第1軸部
114 爪部
130 スライダ
130A 押圧面
150 ホルダ
152 フック
160 可動ユニット
161,161-2,161-3 第1のアクチュエータ
161Ca 第1傾斜部
161Cb 第2傾斜部
161Cc 第1傾斜部
161Cd 第2傾斜部
161A 上側軸受面
161B 上側当接面
161C 下側傾斜面
161F 下側軸受面
161G 張り出し部
162 カム
162A 腕部
162B 回動軸部
162C カム山部
163 トーションばね
163A,163B 腕部
164 第2のアクチュエータ
164A 軸支部
165 可動接点部材
165A 第1の接点部
165B 第2の接点部
170 端子部
171 第1の固定接点
172 第2の固定接点
173 第3の固定接点
174,175 端子ホルダ
Claims (16)
- ケースと、
押下操作されることによって上下方向にスライドするスライダと、
前記スライダによって押し下げられることで、下方に回動する第1のアクチュエータと、
可動接点部材を保持する第2のアクチュエータと、
前記可動接点部材が接触する第1の固定接点および第2の固定接点と、
第2のアクチュエータによって回動可能に軸支され、前記第1のアクチュエータの下側傾斜面と当接するカム山部を有し、前記カム山部が前記下側傾斜面を摺動しつつ押し下げられることにより、下方に回動するカムと、
前記カムを上方に付勢する付勢部材と
を備え、
前記カムは、
前記第1のアクチュエータが下方に所定角度回動したときに、前記付勢部材からの付勢力によって前記カム山部が前記下側傾斜面を滑り上がることにより、前記第2のアクチュエータを引き上げて、前記可動接点部材の接触相手を、前記第1の固定接点から前記第2の固定接点に切り換える
ことを特徴とする切り換えスイッチ。 - 前記第2のアクチュエータは、
前記カムによって引き上げられたときに、前記可動接点部材を第3の固定接点に接触させたまま、前記可動接点部材と前記第3の固定接点との接触位置を支点として上方に回動することにより、前記可動接点部材の接触相手を、前記第1の固定接点から前記第2の固定接点に切り換える
ことを特徴とする請求項1に記載の切り換えスイッチ。 - 前記第2のアクチュエータは、
前記カムの回動軸部を支持する軸支部を有し、
前記カムは、
前記回動軸部によって前記第2のアクチュエータの前記軸支部を引き上げることにより、前記可動接点部材の接触相手を、前記第1の固定接点から前記第2の固定接点に切り換える
ことを特徴とする請求項1または2に記載の切り換えスイッチ。 - 前記第2のアクチュエータは、
前記付勢部材からの付勢力により、前記ケースの内底部に対して押さえ付けられている
ことを特徴とする請求項1から3のいずれか一項に記載の切り換えスイッチ。 - 前記第1のアクチュエータは、
前記スライダが所定の高さ位置まで下方に移動したときに、さらなる下方への回動が規制される
ことを特徴とする請求項1から4のいずれか一項に記載の切り換えスイッチ。 - 前記スライダは、
前記第1のアクチュエータが有する張り出し部が上下方向にスライドするスライド溝を有し、
前記第1のアクチュエータは、
前記スライダが前記所定の高さ位置まで下方に移動したときに、前記張り出し部が前記スライド溝の上端面に当接することにより、さらなる下方への回動が規制される
ことを特徴とする請求項5に記載の切り換えスイッチ。 - 前記第1のアクチュエータは、
前記スライダが前記所定の高さ位置まで下方に移動したときに、回動軸から逸脱する
ことを特徴とする請求項6に記載の切り換えスイッチ。 - 前記第1のアクチュエータは、
前記回動軸から逸脱した後、前記スライダが前記所定の高さ位置からさらに下方に移動したときに、回動角度が固定された状態のまま、前記ケースの内壁面に形成されたガイドリブに沿って、前記スライダとともに下方にスライドする
ことを特徴とする請求項7に記載の切り換えスイッチ。 - 前記ガイドリブは、
上端部に第2軸部を有し、
前記第1のアクチュエータは、
下側軸受面を有し、当該下側軸受面が前記第2軸部に乗り上げることにより、前記第2軸部を回動中心として回動可能であり、
前記スライダが前記所定の高さ位置まで下方に移動したときに、前記下側軸受面が前記第2軸部から脱落することにより、前記回動軸から逸脱する
ことを特徴とする請求項8に記載の切り換えスイッチ。 - 前記第1のアクチュエータは、
前記スライダが前記所定の高さ位置まで上方に復帰したときに、当該第1のアクチュエータの上側軸受面が前記ケースの内部に設けられた第1軸部に突き当たり、前記スライダが前記所定の高さ位置からさらに上方に復帰したときに、前記カムの前記カム山部によって押し上げられることによって、前記第1軸部を回動中心として上方に回動する
ことを特徴とする請求項9に記載の切り換えスイッチ。 - 前記カムは、
前記第1のアクチュエータが前記第1軸部を回動中心として所定の高さ位置まで上方に回動したときに、前記付勢部材からの付勢力によって前記カム山部が前記下側傾斜面を滑り上がることにより、前記第2のアクチュエータの前記引き上げを解消させて、前記可動接点部材の接触相手を、前記第2の固定接点から前記第1の固定接点に切り換える
ことを特徴とする請求項10に記載の切り換えスイッチ。 - 前記付勢部材は、トーションばねである
ことを特徴とする請求項1から11のいずれか一項に記載の切り換えスイッチ。 - 前記下側傾斜面は、
前記カムの前記カム山部が滑り上がるにつれて段階的に傾斜角度が緩やかになる多面形状を有する
ことを特徴とする請求項11に記載の切り換えスイッチ。 - 前記下側傾斜面は、
前記カムの前記カム山部が滑り上がるにつれて徐々に傾斜角度が緩やかになる曲面形状を有する
ことを特徴とする請求項11に記載の切り換えスイッチ。 - 前記下側傾斜面は、
最速降下曲線に沿った前記曲面形状を有する
ことを特徴とする請求項14に記載の切り換えスイッチ。 - 前記下側傾斜面は、
前記可動接点部材の接触相手が、前記第2の固定接点から前記第1の固定接点に切り換わるタイミングで、前記カム山部が前記下側傾斜面を滑り上がる速度が最も高くなる前記曲面形状を有する
ことを特徴とする請求項14または15に記載の切り換えスイッチ。
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JPS5368888A (en) * | 1976-11-30 | 1978-06-19 | Matsushita Electric Ind Co Ltd | Switch |
JP2010073662A (ja) * | 2008-09-22 | 2010-04-02 | Alps Electric Co Ltd | スイッチ装置 |
JP2013239372A (ja) * | 2012-05-16 | 2013-11-28 | Alps Electric Co Ltd | 押圧型スイッチ装置 |
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JPWO2021261357A1 (ja) | 2021-12-30 |
US20230100532A1 (en) | 2023-03-30 |
CN115917690A (zh) | 2023-04-04 |
DE112021003355T5 (de) | 2023-04-06 |
KR20230003010A (ko) | 2023-01-05 |
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