WO2018092225A1 - Dispositif de commutation pour résistance variable - Google Patents

Dispositif de commutation pour résistance variable Download PDF

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Publication number
WO2018092225A1
WO2018092225A1 PCT/JP2016/084012 JP2016084012W WO2018092225A1 WO 2018092225 A1 WO2018092225 A1 WO 2018092225A1 JP 2016084012 W JP2016084012 W JP 2016084012W WO 2018092225 A1 WO2018092225 A1 WO 2018092225A1
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WO
WIPO (PCT)
Prior art keywords
state
cam
substrate
spring member
rotating member
Prior art date
Application number
PCT/JP2016/084012
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English (en)
Japanese (ja)
Inventor
肇 福嶌
Original Assignee
東京コスモス電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東京コスモス電機株式会社 filed Critical 東京コスモス電機株式会社
Priority to PCT/JP2016/084012 priority Critical patent/WO2018092225A1/fr
Priority to JP2018550926A priority patent/JP6530870B2/ja
Priority to CN201680090400.3A priority patent/CN109906492B/zh
Priority to TW106125742A priority patent/TWI725214B/zh
Publication of WO2018092225A1 publication Critical patent/WO2018092225A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/36—Driving mechanisms
    • H01H21/40—Driving mechanisms having snap action

Definitions

  • the present invention relates to a switch device for a variable resistor.
  • Patent Document 1 describes a variable resistor switch device 10 as shown in FIG.
  • a switch device 10 for variable resistors is for switching ON / OFF the power supply of a variable resistor (not shown) used for volume adjustment of an audio device mounted on an automobile.
  • the variable resistor switch device 10 shown in FIG. 1 includes a rotating shaft (not shown) that rotates together with an operation shaft (not shown) of the variable resistor, a substrate 100, a pair of switch terminals 120a, 120b, a rotating member 130, a cam 140, and a spring member 150 are provided.
  • Rotating member 130 and cam 140 are rotatably supported by substrate 100. By rotating such a rotating member 130, the pair of switch terminals 120a and 120b are not electrically connected to each other in the first state (the state shown in FIG. 1) and the pair of switch terminals 120a and 120b. A second state (not shown) in which the members are electrically connected via the rotating member 130 can be taken. One end of the spring member 150 is locked to the rotating member 130 and the other end is locked to the cam 140. Such a spring member 150 rotates the rotating member 130 according to the rotation of the cam 140.
  • the cam 140 in FIG. 1 is rotated from the state shown in FIG.
  • the spring member 150 rotates the rotating member 130 in the counterclockwise direction of FIG. 1 according to the rotation of the cam 140.
  • the movable contact pieces 131a and 131b of the rotating member 130 come into contact with the pair of switch terminals 120a and 120b.
  • the pair of terminals 120a and 120b are brought into conduction through the rotating member 130 (that is, the power is turned on).
  • the cam 140 rotates in the counterclockwise direction in FIG. 1 in accordance with the rotation of the rotating shaft from the power ON state
  • the spring member 150 causes the rotating member 130 to rotate in the clockwise direction in FIG. And the switch device 10 is turned off.
  • An object of the present invention is to realize a structure in which a portion of a spring member that is not supported by another member is hardly displaced in a direction approaching a substrate while ensuring the durability of the rotating member.
  • the switch device for a variable resistor of the present invention includes a substrate, a pair of terminals supported by the substrate, a cam portion rotatably disposed on the substrate, and the cam disposed on the substrate.
  • a rotating member that switches a connection state between the pair of terminals according to the rotation of the portion, and one end portion locked to the rotating member while the other end portion is locked to the cam portion,
  • a spring member that rotates the rotating member according to rotation of the rotating member, and a regulating member that is provided on the rotating member and restricts displacement of the spring member in a direction approaching the substrate.
  • substrate of the switch apparatus for variable resistors of an example of embodiment, and a pair of switch terminal The top view of the rotation member of the switch apparatus for variable resistors of an example of embodiment
  • the top view of the cam of the switch apparatus for variable resistors of an example of embodiment Cross-sectional schematic diagram corresponding to the AA cross section of FIG. 3B
  • variable resistor switch device an example of an embodiment of a variable resistor switch device according to the present invention will be described in detail.
  • FIG. 2 is a perspective view of a variable resistor with a switch in which the switch device for a variable resistor according to the present invention is incorporated.
  • control shaft 20 includes a control shaft 20, a variable resistor 30, and a switch device 10a.
  • variable resistor 30 changes the magnitude of the resistance between the resistor terminals 300a and 300b according to the rotation of the operation shaft 20.
  • the structure of the variable resistor 30 is substantially the same as the structure of the conventional variable resistor described in Patent Document 1 described above, for example, and detailed description thereof is omitted.
  • the switch device 10 a corresponds to the variable resistor switch device according to the present invention, and is provided adjacent to the variable resistor 30. Such a switch device 10a switches between a power-on state in which the switch terminals 120c and 120d are conductive and a power-off state in which the switch terminals 120c and 120d are not conductive in accordance with the rotation of the operation shaft 20. . A specific structure of the switch device 10a will be described later.
  • FIG. 3A shows a power-off state of the switch device 10a in which the housing element 170 is omitted.
  • FIG. 3B shows a power-on state of the switch device 10a in which the housing element 170 is omitted.
  • FIG. 4 shows an exploded perspective view of the switch device 10a.
  • the switch device 10a includes a substrate 100a, a housing element 170, a pair of switch terminals 120c and 120d, a rotating shaft 160, a rotating member 130a, a cam 140a, a spring member 150a, and a regulating member 139. .
  • the substrate 100a is combined with the housing element 170 to constitute a switch housing having a substantially rectangular parallelepiped internal space. A part of each of the pair of switch terminals 120c and 120d is held on the substrate 100a in a state of extending to the external space of the switch housing.
  • a rotating shaft 160, a rotating member 130a, a cam 140a, and a spring member 150a are supported on one side surface of the substrate 100a that defines the internal space of the switch housing.
  • the rotation shaft 160 transmits the rotation of the operation shaft 20 (see FIG. 2) to the cam 140a.
  • the spring member 150a is stretched between the cam 140a and the rotating member 130a, and rotates the rotating member 130a according to the rotation of the cam 140a.
  • the rotating member 130a rotates in accordance with the rotation of the cam 140a, whereby the pair of switch terminals 120c and 120d are not electrically connected to each other (that is, the state shown in FIG. 3A) and the pair.
  • the switch terminals 120c and 120d can be in a second state where the switch terminals 120c and 120d are electrically connected via the rotating member 130a (that is, the state shown in FIG. 3B).
  • the rotation shaft 20 rotates in a direction opposite to the predetermined direction from the power-on state
  • the rotation is transmitted to the cam 140a via the rotation shaft 160.
  • the rotating member 130a is rotated while the spring member 150a is elastically deformed according to the rotation of the cam 140a.
  • the rotating member 130a is separated from at least one of the pair of switch terminals 120c and 120d, and the pair of switch terminals 120c and 120d are in a non-conductive state.
  • the restriction member 139 restricts the spring member 150a from being displaced in a direction approaching the substrate 100a when the power switch operation of the switch device 10a is performed.
  • the orthogonal coordinate system (W, L, T) shown in FIGS. 3A, 3B, and 5 is used for the direction of each part.
  • the “positive direction” of the W axis is the right side of each figure
  • the “positive direction” of the L axis is the upper side of each figure
  • the “positive direction” of the T axis is each figure.
  • the W-axis direction is also referred to as the “width direction” of the switch device 10a and the board 100a in the assembled state.
  • the L-axis direction is also referred to as “vertical direction” of the switch device 10a and the substrate 100a in the assembled state.
  • the T-axis direction is also referred to as the “height direction” of the switch device 10a and the substrate 100a in the assembled state.
  • “One side” in the “width direction”, “vertical direction”, and “height direction” corresponds to the “positive direction” of the W axis, L axis, and T axis.
  • “the other” in the “width direction”, “vertical direction”, and “height direction” corresponds to the “negative direction” of the W axis, the L axis, and the T axis.
  • the substrate 100 a includes a rectangular plate-shaped substrate body 101 and a side wall element 102 provided at the other end in the vertical direction of the substrate body 101.
  • a substrate body 101 constitutes the lower wall of the rectangular parallelepiped switch housing, and the side wall element 102 constitutes one of the four side walls of the switch housing.
  • the substrate body 101 includes a through hole 103, a substrate side shaft support portion 105, a relief recess portion 106, a guide recess portion 107, and a contact piece arrangement portion 108.
  • the through hole 103 is formed in a substantially central portion of the substrate body 101. Such a through hole 103 is inserted through the rotary shaft 160 on the inner side.
  • the substrate side shaft support portion 105 supports a pivot shaft 143 that is a rotation center of a cam 140a and a rotation member 130a described later.
  • a substrate-side shaft support portion 105 is a through-hole formed in one end portion in the width direction of the substrate body 101 and the other end portion in the vertical direction (that is, lower right in FIG. 5).
  • the pivot shaft 143 is provided in parallel with the rotation shaft 160.
  • the escape recess 106 prevents the front end portion of the first locking portion 152 of the spring member 150a and the substrate main body 101 from interfering with each other.
  • a relief recess 106 is formed in an arc shape formed on a portion of one side surface of the substrate body 101 opposite to the substrate side shaft support portion 105 with the through hole 103 interposed therebetween (that is, the upper left portion in FIG. 5). It is a recessed part.
  • the guide recess 107 guides the rotation of the rotating member 130a by the engagement of the rotating member 130a with the movable guide piece 135.
  • a guide recess 107 is an arc-shaped recess formed in a portion adjacent to the other side (the lower side in FIG. 5) in the longitudinal direction of the escape recess 106 on one side surface of the substrate body 101. .
  • the contact piece arrangement portion 108 arranges the fixed contact piece 122 of one switch terminal 120c of the pair of switch terminals 120c and 120d.
  • Such a contact piece arrangement portion 108 is defined by a notch 111 formed on one end face in the width direction of the substrate body 101.
  • the housing element 170 includes a rectangular plate-like upper wall element 171 constituting the upper wall of the switch housing and three rectangular plate-like side wall elements 172 constituting three of the four side walls of the switch housing. And have.
  • the housing element 170 as described above is assembled to the substrate 100a to form a switching housing.
  • the pair of switch terminals 120c and 120d correspond to a pair of terminals and are metal wires. Further, the pair of switch terminals 120c and 120d are embedded in the substrate 100a with their respective tip portions 121a and 121b exposed to the outside. Such a pair of switch terminals 120c and 120d is embedded in the substrate 100a by injection molding (insert molding).
  • the tip 121a of one switch terminal 120c protrudes from the other end surface (the lower end surface in FIG. 3A) of the substrate body 101 to the outside of the substrate body 101.
  • One switch terminal 120c has a rectangular plate-like fixed side contact piece 122. Such a fixed contact piece 122 is exposed to the outside from the bottom of the notch 111 of the substrate body 101 and is disposed on the contact piece placement portion 108.
  • the tip 121a of one switch terminal 120c and the fixed contact piece 122 are electrically connected by a continuous portion (not shown) embedded in the substrate body 101.
  • the tip 121b of the other switch terminal 120d protrudes from the other end face in the vertical direction of the substrate body 101 to the outside. Further, the base end portion of the other switch terminal 120 c is electrically connected to the rotating member 130 a via a pivot shaft 143 supported by the substrate side shaft support portion 105 of the substrate body 101.
  • the number of switch terminals is not limited to this example.
  • the rotating shaft 160 will be described with reference to FIGS. 3A to 4.
  • the rotation shaft 160 is fixed coaxially with the operation shaft 20 at the other end in the axial direction (in other words, the height direction) of the operation shaft 20 (see FIG. 2).
  • Such a rotation shaft 160 rotates together with the operation shaft 20.
  • the rotating shaft 160 can be configured by a shaft-like member provided integrally with the operation shaft 20 or separately.
  • Such a rotating shaft 160 rotates a cam 140a described later in accordance with the rotation of the operation shaft 20.
  • the rotating shaft 160 is a hollow member made of synthetic resin. Further, the cross-sectional shape of the inner peripheral surface of the rotating shaft 160 (in other words, the cross-sectional shape orthogonal to the axial direction of the rotating shaft 160) is rectangular or oval.
  • a rotation shaft 160 includes a rotation support portion 161 and a transmission engagement portion 162.
  • the rotation support part 161 supports the rotating shaft 160 rotatably with respect to the board
  • the transmission engaging part 162 transmits the rotation of the rotating shaft 160 to the cam 140a by engaging with a cam 140a described later.
  • a transmission engaging portion 162 is a convex portion formed on the outer peripheral surface of the rotating shaft 160.
  • the rotary shaft 160 is fitted on the end of the operation shaft 20. In this state, the rotation support portion 161 of the rotation shaft 160 is inserted into the through hole 103 of the substrate body 101. Thus, the rotating shaft 160 is supported by the substrate 100a in a rotatable state.
  • the rotating member 130a will be described with reference to FIGS. 3A to 4 and 6.
  • FIG. The rotating member 130a is rotatably supported by a pivot shaft 143 supported by the substrate 100a. Such a rotating member 130a is always in conduction with the other switch terminal 120d via the pivot shaft 143. Further, the rotating member 130a is in a state of being in contact with one switch terminal 120c (in other words, in a conductive state) and in a state of not being in contact (in other words, in a conductive state) according to its own rotation angle. (Not in the state).
  • the rotating member 130a is a metal plate-like member, and includes a shaft insertion hole 132, a movable side shaft support portion 133, a movable side locking portion 134, a movable contact piece 131c, a movable contact piece 131c, and a movable contact piece 131c. And a side guide piece 135.
  • the shaft insertion hole 132 is for inserting the rotary shaft 160 inside.
  • Such a shaft insertion hole 132 is a through-hole formed in the annular portion 136 (see FIG. 6) of the rotating member 130a.
  • the movable side shaft support portion 133 is formed in a first extended portion 137 (see FIG. 6) that extends from the annular portion 136 outward in the radial direction (specifically, the radial direction of the annular portion 136). It is a through hole.
  • a pivot shaft 143 is inserted into the movable side shaft support part 133. In this way, the rotating member 130a is supported on the substrate 100a in a state where the rotating member 130a can rotate about the pivot shaft 143.
  • the pivot shaft 143 is electrically connected to the base end portion of the other switch terminal 120c. Therefore, the movable side shaft support part 133 corresponds to a first conduction part that conducts the rotation member 130a and the other switch terminal 120c.
  • the movable side locking portion 134 is a second extended portion 138 (see FIG. 6) that extends from the annular portion 136 outward in the radial direction (specifically, in the radial direction of the annular portion 136). ) Is a through-hole formed.
  • the annular portion 136, the first extended portion 137, and the second extended portion 138 correspond to the rotating member main body.
  • the movable contact piece 131c is not in contact with the fixed side contact piece 122 of the one switch terminal 120c (in other words, conductive) in accordance with the rotation of the rotation member 130a (in other words, in other words, If not, it can be in a non-conductive state.
  • Such a movable contact piece 131c extends from one end in the width direction (the right end in FIGS. 3A, 3B, and 6) of the outer peripheral edge of the ring-shaped portion 136 to the outside in the radial direction of the ring-shaped member 136.
  • the movable contact piece 131c as described above corresponds to a second conducting portion that conducts the rotating member 130a and one switch terminal 120c.
  • the movable side guide piece 135 guides the rotation of the rotating member 130 a by engaging with the guide recess 107 of the substrate body 101.
  • Such a movable guide piece 135 extends from the outer peripheral edge of the annular portion 136 in a state of being bent in a direction approaching the substrate body 101.
  • the rotating member 130 a as described above inserts the pivot shaft 143 supported by the substrate side shaft support portion 105 of the substrate body 101 into the movable side shaft support portion 133 and also moves the movable side guide piece 135 of the substrate body 101. It is arranged on one side surface of the substrate body 101 in a state of being engaged with the guide recess 107.
  • the rotating shaft 160 is inserted inside the through hole 132 of the rotating member 130a.
  • the rotating member 130a can rotate around the pivot shaft 143 as long as the movable guide piece 135 can be displaced inside the guide recess 107.
  • Such a rotating member 130a is in a first state (separated from at least one of the pair of switch terminals 120c and 120d (in this example, the other switch terminal 120d)) according to its rotation angle ( 3A) and a second state (state shown in FIG. 3B) in contact with both the pair of switch terminals 120c and 120d.
  • the pair of switch terminals 120c and 120d are electrically connected to each other via the rotating member 130a.
  • the first state corresponds to the power-off state of the switch device 10a
  • the second state corresponds to the power-on state of the switch device 10a.
  • the cam 140a will be described with reference to FIGS. 3A to 4 and 7.
  • FIG. The cam 140a is supported by a pivot shaft 143 supported by the substrate 100a in a state where the cam 140a can rotate around the pivot shaft 143. Further, the cam 140a is disposed on the side farther from the substrate body 101 than the rotating member 130a.
  • Such a cam 140a rotates about the pivot shaft 143 in accordance with the rotation of the rotating shaft 160, so that the first state corresponding to the power OFF state of the switch device 10a (the state shown in FIG. 3A) and the switch A second state (state shown in FIG. 3B) corresponding to the power ON state of the apparatus 10a can be taken.
  • the cam 140 a is entirely made of synthetic resin, and includes a cam main body 141 and a cam side shaft support portion 142 provided at the base end portion of the cam main body 141.
  • the cam main body 141 includes a cam side engaging portion 144 and a cam side locking portion 145.
  • the cam side engaging portion 144 is engaged with the transmission engaging portion 162 of the rotating shaft 160 and transmits the rotation of the rotating shaft 160 to the cam main body 141.
  • Such a cam side engaging part 144 is a recessed part formed in the front-end
  • the cam side locking portion 145 is for locking the other end of the spring member 150a.
  • Such a cam side locking part 145 is a through hole formed in the bottom part of the cam side engaging part 144 so as to penetrate the cam main body 141.
  • the cam side shaft support part 142 supports the cam 140a with respect to the pivot shaft 143 in a state in which the cam 140a can rotate around the pivot shaft 143.
  • Such a cam side shaft support part 142 is a partial cylindrical member having a C-shaped cross section.
  • Such a cam side shaft support portion 142 is integrally provided at the base end portion of the cam main body 141.
  • the cam 140a as described above is supported in a state where the portion of the pivot shaft 143 farther from the substrate body 101 than the portion of the pivot member 130a supported is inserted into the cam side shaft support portion 142.
  • the cam side engaging portion 144 of the cam main body 141 can be engaged with the transmission engaging portion 162 of the rotating shaft 160.
  • the rotation of the rotation shaft 160 is transmitted to the cam main body 141 (that is, the cam 140a) via the engagement portion between the transmission engagement portion 162 and the cam side engagement portion 144.
  • the spring member 150a will be described with reference to FIGS. 3A to 4.
  • FIG. The spring member 150a is made of a substantially arc-shaped metal wire having elasticity. Such a spring member 150a rotates the rotation member 130a in a direction opposite to the rotation direction of the cam 140a in accordance with the rotation of the cam 140a.
  • the spring member 150 a includes a spring body 151, a first locking portion 152, and a second locking portion 153.
  • the first locking portion 152 extends from one end of the spring body 151 in a direction approaching the substrate body 101.
  • the second locking portion 153 extends from the other end of the spring body 151 in a direction away from the substrate body 101.
  • the first locking portion 152 is inserted into the movable side locking portion 134 of the rotating member 130 a from the side far from the substrate body 101, and the second locking portion 153. However, it is assembled to the cam side locking portion 145 of the cam 140a in a state of being inserted from the side close to the substrate body 101. That is, with respect to the height direction, the spring body 151 of the spring member 150a is disposed between the rotating member 130a and the cam 140a (specifically, the cam body 141).
  • the spring member 150a has a first state where the amount of bending of the spring member 150a is small (the state shown in FIG. 3A) and a second state where the amount of bending of the spring member 150a is large (the state shown in FIG. The state transitions while being elastically deformed between the state shown in FIG. 3B.
  • the first state corresponds to the power-off state of the switch device 10a
  • the second state corresponds to the power-on state of the switch device 10a.
  • the restricting member 139 has a supported portion 154 (a portion indicated by an oblique lattice in FIG. 3B) including the longitudinal center position C (see FIGS. 3A and 3B) of the spring member 150a from the rotating member 130a. Also, the displacement of the spring member 150a is restricted so as not to be displaced to a position close to the substrate 100a.
  • the regulating member 139 is a spring member in the power-on state of the switch device 10a shown in FIG. 3B. It extends from the annular portion 136 of the rotating member 130a to the outside in the radial direction of the annular portion 136 so as to overlap the supported portion 154 of 150a in the height direction.
  • Such a restricting member 139 extends from the outer peripheral edge of the annular portion 136 of the rotating member 130a to the outside in the radial direction of the annular portion 136.
  • the base end portion of the regulating member 139 overlaps with the spring member 150a in the height direction in the power OFF state.
  • portions of the spring member 150a that do not overlap with the regulating member 139 in the height direction exist on both sides of the supported portion 154 in the length direction. That is, in the power ON state, there are portions of the spring member 150a that are not supported from the substrate body 101 side by other members on both sides in the length direction of the supported portion 154.
  • At least the portion that overlaps with the spring member 150a in the height direction at the time of the above-described state transition. Is formed.
  • Such a support surface 139a has a shape that displaces the supported portion 154 of the spring member 150a away from the substrate body 101 (upward in FIG. 8) as the state transition proceeds.
  • the support surface 139a is an inclined surface that moves away from the substrate body 101 as it goes outward in the radial direction of the spring body 151.
  • the height dimension H of the support surface 139a becomes higher toward the outer side in the radial direction of the spring body 151.
  • the support surface 139a has a planar shape that linearly separates from the substrate body 101 as it goes outward in the radial direction of the spring body 151.
  • the support surface may be configured by a curved surface that is curvedly away from the substrate body 101 as it goes outward in the radial direction of the spring body 151.
  • Such a support surface 139a having a smooth surface can improve the operational feeling given to the user.
  • the regulating member 139 is provided in a state where it does not come into contact with other members other than the spring member 150a.
  • the regulating member 139 is a part of the rotating member 130a other than the first conducting portion and the second conducting portion (in this example, the movable side shaft support portion 133 and the movable contact piece 131c). Is provided.
  • the regulating member 139 is not limited to the structure of this example.
  • the restricting member may have a structure that overlaps with the spring member 150a in the height direction only in the power OFF state.
  • the restricting member may have a structure overlapping with the spring member 150a in the height direction in the power OFF state and the power ON state.
  • the restriction member can be enlarged as long as the restriction member 139 does not interfere with members other than the spring member 150a.
  • a portion of the spring member 150a that is present on both sides in the length direction of the supported portion 154 is configured not to overlap with the regulating member 139 in the height direction.
  • the support surface of the regulating member can be a flat surface instead of the inclined surface.
  • FIGS. 3A and 3B show a power-off state of the switch device 10a.
  • FIG. 3B shows a power-on state of the switch device 10a.
  • the cam 140a rotates about the pivot shaft 143 by a predetermined angle in the counterclockwise direction in FIG. 3A.
  • the spring member 150a is elastically deformed from the first state shown in FIG. 3A to the second state shown in FIG. Rotate in the clockwise direction of FIG. 3A.
  • the movable contact piece 131c of the rotating member 130a comes into contact with the fixed-side contact piece 122 of one switch terminal 120c.
  • the rotating member 130a is electrically connected to the other switch terminal 120d via the pivot shaft 143. For this reason, the pair of switch terminals 120c and 120d are brought into a conductive state (power ON state) via the rotating member 130a. In such a power ON state, the supported portion 154 of the spring member 150a overlaps with the regulating member 139 of the rotating member 130a in the height direction. On the other hand, portions of the spring member 150a existing on both sides in the length direction of the supported portion 154 do not overlap with the regulating member 139 in the height direction.
  • the spring member 150a rotates the rotating member 130a in the clockwise direction in FIG. 3A as the cam 140a rotates, the spring member 150a has a small amount of bending as shown in FIG. 3A (in other words, The state transitions from the first state to the second state with a large amount of deflection (in other words, the curvature is large) as shown in FIG. 3B while being elastically deformed.
  • the supported portion 154 of the spring member 150a is displaced toward the outer side in the radial direction of the spring body 151. Further, during the state transition, the supported portion 154 of the spring member 150a is displaced while being in contact with the support surface 139a of the regulating member 139. For this reason, the supported portion 154 of the spring member 150a is not displaced in the direction approaching the substrate 100a.
  • the supported portion 154 of the spring member 150a is positioned on the side farther from the substrate body 101 than the one side surface of the rotating member 130a in the support surface 139a of the regulating member 139 in the middle of the state transition. It touches the part to do.
  • the supported portion 154 of the spring member 150a is guided by the support surface 139a of the regulating member 139 in a direction away from the substrate 100a as the state transition proceeds.
  • the spring member 150a biases the rotating member 130a in the predetermined direction based on its own elastic deformation.
  • the movable contact piece 131c of the rotating member 130a is separated from the fixed side contact piece 122 of one switch terminal 120c.
  • the power switch OFF state shown in FIG. In the power OFF state, the spring main body 151 of the spring member 150a overlaps the rotating member 130a in the height direction over the entire length.
  • the spring member 150a rotates the rotating member 130a in the counterclockwise direction of FIG. 3B as the cam 140a rotates, the spring member 150a has a large amount of bending as shown in FIG. 3B (in other words, the state transitions from the second state where the curvature is large) to the first state where the amount of bending as shown in FIG. 3A is small (in other words, the curvature is small).
  • the supported portion 154 of the spring member 150 a is displaced so as to be directed inward in the radial direction of the spring body 151.
  • the supported portion 154 of the spring member 150a is displaced while coming into contact with the support surface 139a of the regulating member 139. At this time, the supported portion 154 of the spring member 150a is displaced in a direction closer to the substrate 100a, but is not displaced in a direction closer to the substrate body 101 than one side surface of the rotating member 130a.
  • the pivot shaft 143 is provided separately from the substrate 100a.
  • a pivot shaft portion (not shown) corresponding to the pivot shaft 143 can be provided integrally with the substrate 100a.
  • the cam 140a and the rotating member 130a are supported on the pivot shaft portion in a rotatable state.
  • both the axis serving as the rotation center of the cam 140a and the axis serving as the rotation center of the rotating member 130a are configured by the pivot shaft 143.
  • the axis serving as the rotation center of the cam 140a and the axis serving as the rotation center of the rotating member 130a may be configured by different axes.
  • the spring member 150a is displaced closer to the substrate 100a than one side surface of the rotation member 130a while ensuring the durability of the rotation member 130a. Can be prevented.
  • the switch device 10a transitions from the power OFF state to the power ON state
  • the supported portion 154 of the spring member 150a contacts the regulating member 139, while the supported portion 154
  • the portions present on both sides in the length direction are not in contact with the regulating member 139.
  • the contact area between the spring member 150a and the rotating member 130a that is, the regulating member 139
  • the wear of the spring member 150a and the rotating member 130a during the state transition can be reduced, and the durability of the rotating member 130a can be improved.
  • the rotation member 130a is provided with a regulating member 139 that overlaps with the supported portion 154 of the spring member 150a in the height direction in the power-on state shown in FIG. 3B.
  • the supported portion 154 of the spring member 150a is displaced away from the substrate body 101 as the state transition proceeds based on the contact with the support surface 139a (in other words, elastically deforms). ).
  • the supported portion 154 of the spring member 150a is restricted by the support surface 139a of the restricting member 139 from being displaced to a position closer to the substrate 100a than one side surface of the rotating member 130a during the state transition.
  • the first locking portion 152 of the spring member 150a is less likely to be subjected to a force in the direction of coming off from the movable side locking portion 134 of the rotating member 130a, and the first locking portion 152 of the spring member 150a. And the movable side locking portion 134 of the rotating member 130a are not easily disengaged.
  • the regulating member 139 as described above can be formed integrally with the rotating member 130a by punching and bending, the number of parts does not increase.
  • the switch device for a variable resistor according to the present invention can be suitably used as a switch device for a variable resistor having various structures.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Adjustable Resistors (AREA)

Abstract

La présente invention limite le déplacement d'un élément de ressort vers un substrat et assure la durabilité d'un élément rotatif. La présente invention comprend : un substrat (100a) ; des bornes de commutation (120c, 120d) ; une came (140a) qui est agencée de manière à pouvoir tourner ; un élément rotatif (130a) qui, en réponse à la rotation de la came (140a), commute l'état de connexion entre les bornes de commutation (120c, 120d) ; un élément de ressort (150a) qui est ancré à une extrémité par l'élément rotatif (130a) et à l'autre par la came (140a) et, en réponse à la rotation de la came (140a), amène l'élément rotatif (130a) à tourner ; et un élément de restriction (139) qui est disposé sur l'élément rotatif (130a) et limite le déplacement de l'élément de ressort (150a) vers le substrat (100a). Sur l'un ou l'autre côté de la direction de la longueur de sa partie qui entre en contact avec l'élément de restriction (139) pendant la restriction susmentionnée, l'élément de ressort (150a) a une partie qui n'est pas supportée par d'autres éléments.
PCT/JP2016/084012 2016-11-16 2016-11-16 Dispositif de commutation pour résistance variable WO2018092225A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2016/084012 WO2018092225A1 (fr) 2016-11-16 2016-11-16 Dispositif de commutation pour résistance variable
JP2018550926A JP6530870B2 (ja) 2016-11-16 2016-11-16 可変抵抗器用スイッチ装置
CN201680090400.3A CN109906492B (zh) 2016-11-16 2016-11-16 可变电阻器用开关装置
TW106125742A TWI725214B (zh) 2016-11-16 2017-07-31 可變電阻器用開關裝置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/084012 WO2018092225A1 (fr) 2016-11-16 2016-11-16 Dispositif de commutation pour résistance variable

Publications (1)

Publication Number Publication Date
WO2018092225A1 true WO2018092225A1 (fr) 2018-05-24

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PCT/JP2016/084012 WO2018092225A1 (fr) 2016-11-16 2016-11-16 Dispositif de commutation pour résistance variable

Country Status (4)

Country Link
JP (1) JP6530870B2 (fr)
CN (1) CN109906492B (fr)
TW (1) TWI725214B (fr)
WO (1) WO2018092225A1 (fr)

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WO2011001733A1 (fr) * 2009-06-30 2011-01-06 東京コスモス電機株式会社 Potentiomètre

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JPS621333U (fr) * 1985-06-20 1987-01-07
JPH0451400Y2 (fr) * 1986-09-04 1992-12-03
JPH051866Y2 (fr) * 1987-03-27 1993-01-19
JPH0343704U (fr) * 1989-09-08 1991-04-24
JP2000188040A (ja) * 1998-12-24 2000-07-04 Teikoku Tsushin Kogyo Co Ltd スイッチ機構
JP2005223205A (ja) * 2004-02-06 2005-08-18 Alps Electric Co Ltd スライド型電気部品
WO2011001733A1 (fr) * 2009-06-30 2011-01-06 東京コスモス電機株式会社 Potentiomètre

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TW201820368A (zh) 2018-06-01
CN109906492A (zh) 2019-06-18
TWI725214B (zh) 2021-04-21
CN109906492B (zh) 2021-03-16
JPWO2018092225A1 (ja) 2019-06-24
JP6530870B2 (ja) 2019-06-12

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