WO2020184308A1 - Interrupteur à bouton-poussoir - Google Patents

Interrupteur à bouton-poussoir Download PDF

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Publication number
WO2020184308A1
WO2020184308A1 PCT/JP2020/009001 JP2020009001W WO2020184308A1 WO 2020184308 A1 WO2020184308 A1 WO 2020184308A1 JP 2020009001 W JP2020009001 W JP 2020009001W WO 2020184308 A1 WO2020184308 A1 WO 2020184308A1
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WO
WIPO (PCT)
Prior art keywords
push switch
metal contact
stem
movable contact
contact
Prior art date
Application number
PCT/JP2020/009001
Other languages
English (en)
Japanese (ja)
Inventor
小原　啓志
Original Assignee
アルプスアルパイン株式会社
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 アルプスアルパイン株式会社 filed Critical アルプスアルパイン株式会社
Publication of WO2020184308A1 publication Critical patent/WO2020184308A1/fr

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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
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/64—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches
    • H01H13/66—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member wherein the switch has more than two electrically distinguishable positions, e.g. multi-position push-button switches the operating member having only two positions

Definitions

  • the present invention relates to a push switch.
  • two click springs that is, movable contact members
  • a pressing member straddling the two click springs are provided on the insulating substrate, and either of the two click springs on the pressing member is provided.
  • a technique is disclosed in which two click springs can be pressed stepwise by pressing a position biased toward.
  • the push switch of one embodiment includes a housing having an accommodation space opened upward, and a first fixed contact portion and a second fixed contact portion provided side by side along the first direction on the inner bottom surface of the accommodation space. , A first movable contact member that is arranged above the first fixed contact portion, is formed in a dome shape, is pressed from above, and reverses the operation to connect the first fixed contact portion and the first switch.
  • a second movable contact member which is arranged above the second fixed contact portion, is formed in a dome shape, is pressed from above and reverses, and connects the second fixed contact portion with the second switch, and a second It is provided with a first movable contact member arranged above the first movable contact member and the second movable contact member and capable of simultaneously pressing the first movable contact member and the second movable contact member, and the first movable member.
  • a push switch in which either one of the contact member and the second movable contact member reverses faster than the other, and the first pressing member has first guide portions at both ends in the first direction.
  • the housing has a second guide portion that can be engaged with the first guide portion and extends in the vertical direction on each of the inner walls of the accommodation spaces facing each other in the first direction.
  • the pressing member can move up and down along the second guide portion in a state where the first guide portion is engaged with the second guide portion.
  • FIG. 1 is an external perspective view of the push switch 100 according to the embodiment.
  • FIG. 2 is a plan view of the push switch 100 according to the embodiment.
  • the push switch 100 has a substantially square shape (more specifically, an octagonal shape formed by chamfering each corner of the square shape) in a plan view from above. Moreover, it has a substantially thin rectangular parallelepiped shape in which the height dimension in the Z-axis direction is smaller than the length of each side of the square shape.
  • the push switch 100 has a housing 110 having a substantially thin rectangular parallelepiped shape, and a thin plate-shaped insulator 120 laser-welded to the upper surface of the housing 110. At the center of the insulator 120, a dome-shaped operating portion 120A that slightly protrudes upward is provided.
  • the insulator 120 is formed by using an elastic material. As a result, the operation unit 120A can be elastically deformed in the vertical direction in accordance with the pressing operation from the user.
  • External connection terminals 112A and 112B for electrically connecting the push switch 100 to the outside are exposed on one side surface of the housing 110 (the side surface on the negative side of the X axis in the drawing).
  • External connection terminals 112C and 112D for electrically connecting the push switch 100 to the outside are exposed on the other side surface of the housing 110 (the side surface on the positive side of the X-axis in the drawing).
  • the external connection terminal 112B and the external connection terminal 112C are integrally formed with each other, that is, they are always electrically connected to each other.
  • the electrical connection state of the external connection terminal 112B and the external connection terminal 112C and the external connection terminal 112A is switched, and the external connection terminal 112B, the external connection terminal 112C and the external connection terminal 112D are used. It is possible to switch the on / off state as a push switch by switching the electrical connection state of. The state of being electrically connected (conducting state) is turned on.
  • the push switch 100 can be operated in two stages by pressing the operation unit 120A. Specifically, the push switch 100 is turned off when the operation unit 120A is not pressed, and the external connection terminal 112A and the external connection terminal 112D are not the external connection terminals 112B and 112C. It becomes a conductive state.
  • the push switch 100 when the operation unit 120A is pressed by the user for the first stroke amount, the first metal contact 150 (see FIG. 3) provided inside the housing 110 is elastically deformed. After that, by inverting operation, the external connection terminal 112A and the external connection terminals 112B and 112C are brought into the first on state in which they are conductive.
  • the push switch 100 is provided inside the housing 110 when the operation unit 120A presses the second stroke amount (however, the second stroke amount> the first stroke amount) by the user.
  • the metal contact 160 of 2 is elastically deformed and then inverted, so that the external connection terminals 112D and the external connection terminals 112B and 112C are in a second ON state in which they are electrically connected. Even if the switch is switched to the second ON state, the first ON state is still maintained.
  • the push switch 100 When the push switch 100 is released from the pressing operation of the operation unit 120A by the user, the push switch 100 automatically returns to the original state by the elastic recovery force of the first metal contact 150 and the second metal contact 160. As a result, the push switch 100 is automatically turned off.
  • FIG. 3 is an exploded perspective view of the push switch 100 according to the embodiment.
  • FIG. 4 is a perspective sectional view taken along line AA of the push switch 100 according to the embodiment (see FIG. 1).
  • the push switch 100 includes an insulator 120, a second stem 130, a first stem 140, a first metal contact 150, a second metal contact 160, and a housing 110 in this order from the upper part in the drawing. To be equipped.
  • the insulator 120 is a thin plate-like member provided on the upper surface of the housing 110 and made of an elastic material (for example, nylon, silicon, rubber, etc.). The outer peripheral edge of the insulator 120 is fixed to the upper surface of the housing 110 by laser welding.
  • each component second stem 130, first stem 140, first metal contact 150, and second metal contact 150
  • the upper opening of the accommodation space 110A is closed.
  • a dome-shaped operating portion 120A on which a pressing operation is performed is provided at the central portion of the insulator 120.
  • the second stem 130 is an example of a "second pressing member".
  • the second stem 130 is a flat plate-shaped member interposed between the insulator 120 and the first stem 140.
  • the second stem 130 moves downward in response to the pressing force applied to the operation unit 120A, thereby moving downward to the center of the upper part of the first stem 140 (a pair of protrusions). (Midpoint position of portions 142 and 144) can be pressed.
  • the second stem 130 is formed using a relatively hard insulating material (eg, hard resin, etc.).
  • the second stem 130 has an octagonal shape in a plan view from above, similarly to the accommodation space 110A of the housing 110 in which the second stem 130 is accommodated.
  • a curved convex upper convex portion 132 is formed at the central portion on the upper surface of the second stem 130.
  • a lower convex portion 134 is formed at the central portion on the lower surface of the second stem 130.
  • the second stem 130 receives the pressing force applied to the operating portion 120A by the upper convex portion 132, and applies the pressing force to the upper center of the first stem 140 by the lower convex portion 134. It can be transmitted locally.
  • the second stem 130 has a first pressing operation even when a pressing operation is performed on a position deviated from the center of the operating unit 120A or when a pressing operation is performed on the operating unit 120A in an oblique direction.
  • the center of the upper surface of the stem 140 can be reliably pressed.
  • the first stem 140 is an example of the "first pressing member".
  • the first stem 140 is a flat plate-like member interposed between the second stem 130 and the first metal contact 150 and the second metal contact 160.
  • the first stem 140 receives the pressing force applied to the operating unit 120A when the operating unit 120A is pressed, and receives the pressing force applied to the operating unit 120A from the second stem 130, and the first metal contact 150 and the second metal contact. Transmit to 160.
  • the first stem 140 presses the first metal contact 150 and the second metal contact 160 so that the same load is applied at the same time.
  • the first metal contact 150 has a smaller pressing force to start the reversing operation than the second metal contact 160.
  • the first stem 140 is first placed on the side of the first metal contact 150 in the direction in which the first metal contact 150 and the second metal contact 160 are lined up (hereinafter, referred to as "first direction"). Tilt, then tilt towards the second metal contact 160 in the first direction.
  • first direction the direction in which the first metal contact 150 and the second metal contact 160 are lined up
  • the first stem 140 is formed by using a relatively hard insulating material (for example, hard resin).
  • the first stem 140 has an octagonal shape in a plan view from above, similarly to the accommodation space 110A of the housing 110 in which the first stem 140 is accommodated.
  • the first protrusion 142 and the second protrusion 144 are provided side by side in the horizontal direction (direction along the diagonal line of the housing 110). ..
  • the first protrusion 142 has a curved convex shape, and is provided at a position where the top thereof contacts the top of the first metal contact 150.
  • the second protrusion 144 has a curved convex shape, and is provided at a position where the top thereof contacts the top of the second metal contact 160. That is, the first stem 140 can reliably press the tops of the first metal contact 150 and the second metal contact 160 by the first protrusion 142 and the second protrusion 144. .. In a plan view from above, the center of the upper surface of the first stem 140 is located at a position overlapping the midpoint of the line segment connecting the first protrusion 142 and the second protrusion 144.
  • the first metal contact 150 and the second metal contact 160 are arranged horizontally (in the direction along the diagonal line of the housing 110) below the first stem 140 and at the bottom of the accommodation space 110A of the housing 110. Provided.
  • the first metal contact 150 and the second metal contact 160 are upwardly convex dome-shaped members formed from a metal plate.
  • the first metal contact 150 is an example of a "first movable contact member".
  • the first metal contact 150 is arranged at the bottom of the accommodation space 110A in a state where its outer peripheral edge is in contact with the first fixed contact 114A provided at the bottom of the accommodation space 110A.
  • the top portion (central portion) of the first metal contact 150 is pressed downward by the first protrusion 142 of the first stem 140.
  • the top is suddenly elastically deformed (reversing operation) in a concave shape.
  • the first metal contact 150 comes into contact with the second fixed contact 114B provided at the bottom of the accommodation space 110A at the portion behind the top thereof.
  • the first metal contact 150 makes a first switch connection in which the first fixed contact 114A and the second fixed contact 114B are electrically connected to each other.
  • the first fixed contact 114A and the second fixed contact 114B are examples of the "first fixed contact portion".
  • the second metal contact 160 is an example of a "second movable contact member".
  • the second metal contact 160 is arranged at the bottom of the accommodation space 110A with its outer peripheral edge in contact with the third fixed contact 114C provided at the bottom of the accommodation space 110A.
  • the top (central portion) of the second metal contact 160 is pressed downward by the second protrusion 144 of the first stem 140 when the pressing operation of the second stroke amount is performed on the operating portion 120A.
  • the predetermined second operating load (however, the second operating load> the first operating load) is exceeded, the top is suddenly elastically deformed (reversed operation) in a concave shape.
  • the second metal contact 160 comes into contact with the fourth fixed contact 114D provided at the bottom of the accommodation space 110A at the portion behind the top thereof.
  • the second metal contact 160 makes a second switch connection in which the third fixed contact 114C and the fourth fixed contact 114D are electrically connected to each other.
  • the third fixed contact 114C and the fourth fixed contact 114D are examples of the "second fixed contact portion".
  • first metal contact 150 and the second metal contact 160 have a spring property, they return to their original convex shape by the repulsive force when released from the pressing force from the first stem 140. ..
  • the first metal contact 150 reverses when the first operating load is applied. At this time, since the operating load of the first metal contact 150 changes abruptly, a click feeling can be given to the pressing operation.
  • the second metal contact 160 reverses when a second operating load (provided that the second operating load> the first operating load) is applied. At this time, since the operating load of the second metal contact 160 changes abruptly, it is possible to give a click feeling to the pressing operation.
  • the first metal contact 150 reverses and is operated by the pressing operation of the operating unit 120A.
  • the second metal contact 160 reverses, which enables a two-step switch operation.
  • the second metal contact 160 has a laminated structure in which two metal plates having the same shape are laminated. More specifically, the second metal contact 160 is formed by stacking two metal leaf springs having the same shape as the first metal contact 150 and having the same mechanical properties. As a result, the second metal contact 160 has a higher operating load when performing the reversing operation than the first metal contact 150 so that the second metal contact 160 reverses when the second operating load is exceeded. There is.
  • the housing 110 is a container-like member having a substantially thin rectangular parallelepiped shape.
  • the housing 110 is formed with a storage space 110A having an open upper portion.
  • a second stem 130, a first stem 140, a first metal contact 150, and a second metal contact 160 are housed in the storage space 110A.
  • the housing 110 is formed using a relatively hard insulating material (eg, hard resin, etc.).
  • FIG. 5 to 8 are plan views showing the internal structure of the accommodation space 110A in the housing 110 according to the embodiment.
  • the first diagonal line L1 and the second diagonal line L2 are shown.
  • the first diagonal line L1 connects the corners of the housing 110 on the positive side of the Y-axis and the negative side of the X-axis in the figure with the corners of the housing 110 on the negative side of the Y-axis and the positive side of the X-axis in the figure. It is a straight line.
  • the second diagonal line L2 is a corner portion of the housing 110 on the positive side of the Y-axis and the positive side of the X-axis in the drawing, and a corner portion of the housing 110 on the negative side of the Y-axis and the negative side of the X-axis in the drawing. It is a straight line connecting the above and is a straight line orthogonal to the first diagonal line L1.
  • FIG. 5 shows the accommodation space 110A in a state where no component parts are arranged.
  • two recesses 118A and 118B are formed on the bottom surface of the housing 110 in the accommodation space 110A so as to be arranged on the first diagonal line L1.
  • the first fixed contact 114A and the second fixed contact 114B are exposed.
  • the third fixed contact 114C and the fourth fixed contact 114D are exposed.
  • FIG. 6 shows the accommodation space 110A in a state where the first metal contact 150 and the second metal contact 160 are arranged.
  • a first metal contact 150 is arranged in the recess 118A.
  • the first metal contact 150 contacts the first fixed contact 114A at both ends in the longitudinal direction thereof.
  • the first metal contact 150 can further contact the second fixed contact 114B to conduct the first fixed contact 114A and the second fixed contact 114B with each other. ..
  • a second metal contact 160 is arranged in the recess 118B. At this time, the second metal contact 160 contacts the third fixed contact 114C at both ends in the longitudinal direction thereof. Then, when the central portion thereof is inverted, the second metal contact 160 can further contact with the fourth fixed contact 114D to conduct the third fixed contact 114C and the fourth fixed contact 114D with each other. ..
  • the first metal contact 150 has substantially the same shape as the recess 118A. Further, the second metal contact 160 has substantially the same shape as the recess 118B. As a result, the housing 110 can easily install and position the first metal contact 150 and the second metal contact 160 with respect to the bottom surface in the accommodation space 110A.
  • the first metal contact 150 and the second metal contact 160 are arranged side by side on the first diagonal line L1.
  • the first diagonal line L1 By arranging them side by side on the first diagonal line L1, it is possible to efficiently arrange the first metal contact 150 and the second metal contact 160 having a larger size in the limited space. Further, since the sizes of the first metal contact 150 and the second metal contact 160 to be arranged can be made larger, there is also an effect of extending the operating life. Further, the first metal contact 150 is subjected to side cut processing in which both side portions in the direction along the first diagonal line L1 are linearly cut along the second diagonal line L2.
  • the second metal contact 160 is subjected to side-cut processing in which both side portions in the direction along the first diagonal line L1 are linearly cut along the second diagonal line L2.
  • the first metal contact 150 and the second metal contact 160 are arranged side by side on the first diagonal line L1 as compared with the case where the first metal contact 150 and the second metal contact 160 are circular in a plan view. can do. Therefore, according to the push switch 100 of the present embodiment, the housing 110 can be downsized.
  • FIG. 7 shows the accommodation space 110A in which the first stem 140 is further arranged.
  • FIG. 8 shows the accommodation space 110A in which the second stem 130 is further arranged.
  • a pair of guide grooves 116 are formed on the inner wall surface of the accommodation space 110A in the housing 110 at positions on the first diagonal line L1.
  • the first stem 140 is provided with a pair of guide portions 146 (an example of the "first guide portion") at both ends located on the first diagonal line L1.
  • each of the pair of guide portions 146 is slidably arranged in each of the pair of guide grooves 116 (an example of the "second guide portion") in the vertical direction.
  • the movement of the first stem 140 in the vertical direction and the tilting of the first stem 140 in the direction along the first diagonal line L1 are guided by the pair of guide grooves 116. Further, the movement of the first stem 140 in the direction along the second diagonal line L2 and the inclination in the direction along the second diagonal line L2 are regulated by the pair of guide grooves 116.
  • FIG. 9 is an external perspective view of the second stem 130 and the first stem 140 according to the embodiment from below.
  • the first protrusion 142 and the second protrusion 144 are provided side by side along the first diagonal line L1 (see FIG. 5) of the housing 110.
  • the first stem 140 can press the first metal contact 150 by the first protrusion 142 and at the same time press the second metal contact 160 by the second protrusion 144.
  • the first stem 140 is first tilted in one direction (arrow D1 direction in the figure) along the first diagonal line L1 by the first metal contact 150 performing the reversing operation, and then the first stem 140 is tilted.
  • the second metal contact 160 can be tilted in the other direction along the first diagonal line L1 (in the direction of arrow D2 in the figure) by performing the reversing operation.
  • a lower convex portion 134 is formed at the central portion of the lower surface of the second stem 130 in the direction along the first diagonal line L1.
  • the lower convex portion 134 has a longitudinal shape extending along the second diagonal line L2 (see FIG. 5) of the housing 110, and its surface is aligned with the first diagonal line L1 of the housing 110. It is curved in the direction along it.
  • the lower convex portion 134 comes into contact with the upper surface of the first stem 140, the lower convex portion 134 serves as a fulcrum (that is, a rotation axis), and the first stem 140 becomes a first diagonal line. It is possible to make it easy to tilt in the direction along L1 and to make it difficult for the first stem 140 to tilt in the direction along the second diagonal line L2.
  • the first stem 140 has a pair of guide portions 146 at both ends in a direction along the first diagonal line L1 (that is, the first direction).
  • Each of the pair of guide portions 146 has a substantially square columnar shape extending in the vertical direction, and is vertically formed inside each of the pair of guide grooves 116 formed on the inner wall surface of the accommodation space 110A of the housing 110. It is slidably arranged (see FIG. 7).
  • Each of the pair of guide portions 146 guides the tilt of the first stem 140 in the direction along the first diagonal line L1 by sliding in the inside of each of the pair of guide grooves 116 in the vertical direction.
  • the outer end surface 146A in the direction along the first diagonal line L1 (that is, the first direction) is a surface inclined inward as it goes upward.
  • a more stable guide can be achieved by increasing the length of the first stem 140 in the direction along the first diagonal line L1.
  • the outer end surface 146A of the guide portion 146 of the present embodiment forms a curved surface that is arcuate when viewed from the direction along the second diagonal line L2, but must come into contact with the guide groove 116. It may be flat.
  • FIG. 10 shows a state in which the push switch 100 is not pressed (that is, an off state).
  • the first stem 140 is in the horizontal state.
  • the first protrusion 142 of the first stem 140 is in contact with the first metal contact 150
  • the second protrusion 144 of the first stem 140 is in contact with the second metal contact 160.
  • the first metal contact 150 is in a non-inverted state, and is therefore not in contact with the second fixed contact 114B.
  • the second metal contact 160 is in a non-inverted state, and is therefore not in contact with the fourth fixed contact 114D.
  • FIG. 11 shows a state in which the push switch 100 is pressed for the first stroke amount (that is, the first on state).
  • the first metal contact 150 reverses.
  • the first metal contact 150 comes into contact with the second fixed contact 114B and makes the first fixed contact 114A and the second fixed contact 114B conductive with each other.
  • the first stem 140 is tilted toward the first metal contact 150 in the first direction.
  • the first stem 140 is in a state in which only the first metal contact 150 side is lowered, and thus is in a state of being tilted toward the first metal contact 150 side.
  • the stroke amount (first stroke amount) of the operation unit 120A is between the apex of the first metal contact 150 and the second metal contact 160. It is the amount of movement of the midpoint. Therefore, the stroke amount (first stroke amount) of the operation unit 120A is half the stroke amount of the apex of the first metal contact 150. This is because the contact point between the first stem 140 and the second metal contact 160 is the fulcrum, the contact point between the first stem 140 and the first metal contact 150 is the point of action, and the apex of the first metal contact 150.
  • the stroke amount of the apex of the first metal contact 150 is "1.0 mm”
  • the stroke amount (first stroke amount) of the operation unit 120A is "0.5 mm”.
  • the contact point between the first stem 140 and the second metal contact 160 is used as a fulcrum, and the first stem 140 and the first metal contact 150 are used as fulcrums.
  • the first metal contact 150 can be inverted by the lever principle with the contact point with the contact point as the point of action. That is, the push switch 100 of the present embodiment can realize a short stroke of the pressing operation when the push switch 100 changes from the off state to the first on state.
  • FIG. 12 shows a state in which the push switch 100 is pressed for the second stroke amount (that is, the second on state).
  • the second metal contact 160 in the push switch 100, when the operating load of the pressing operation on the operating unit 120A exceeds the second operating load, the second metal contact 160 further reverses. As a result, the second metal contact 160 comes into contact with the fourth fixed contact 114D and makes the third fixed contact 114C and the fourth fixed contact 114D conductive to each other. Further, when the second metal contact 160 is inverted, the first stem 140 is tilted toward the second metal contact 160 in the first direction. As a result, the first stem 140 is in a state in which both the first metal contact 150 side and the second metal contact 160 side are lowered, and thus is in a horizontal state.
  • the stroke amount of the operation unit 120A (second stroke amount-first stroke amount) is the apex of the first metal contact 150 and the first stroke amount. It is the amount of movement of the midpoint between the two metal contacts 160. Therefore, the stroke amount of the operation unit 120A (second stroke amount-first stroke amount) is half the stroke amount of the apex of the second metal contact 160. For example, when the stroke amount of the apex of the second metal contact 160 is "1.0 mm", the stroke amount of the operation unit 120A (second stroke amount-first stroke amount) is "0.5 mm”. ..
  • the contact point between the first stem 140 and the first metal contact 150 is used as a fulcrum, and the first stem 140 and the second stem 140 and the second The second metal contact 160 can be inverted by the lever principle with the contact point with the metal contact 160 as the point of action. That is, the push switch 100 of the present embodiment can realize a short stroke of the pressing operation when the first ON state is changed to the second ON state.
  • FIG. 13 is a diagram showing an example of the load characteristic of the push switch 100 according to the embodiment.
  • the operating load of the pressing operation gradually increases as the stroke amount of the pressing operation increases. Then, when the operating load of the pressing operation exceeds the first operating load (timing t1), the first metal contact 150 receives the pressing force from the first protrusion 142 of the first stem 140 to obtain the top portion. Is suddenly reversed so that it deforms into a concave shape. As a result, the central portion of the first metal contact 150 comes into contact with the second fixed contact 114B, and the first fixed contact 114A and the second fixed contact 114B conduct with each other via the first metal contact 150. It will be. At this time, the operating load of the pressing operation drops sharply due to the reversal of the first metal contact 150. As a result, the pressing operation is presented with a click operation feeling.
  • the operating load of the pressing operation gradually increases. Then, when the operating load of the pressing operation exceeds the second operating load (timing t2), the pressing force received by the second metal contact 160 from the second protrusion 144 of the first stem 140 causes the top portion. Is suddenly reversed so that it deforms into a concave shape. As a result, the central portion of the second metal contact 160 comes into contact with the fourth fixed contact 114D, and the third fixed contact 114C and the fourth fixed contact 114D conduct with each other via the second metal contact 160. It will be. At this time, the operating load of the pressing operation drops sharply due to the reversal of the second metal contact 160. As a result, the pressing operation is presented with a click operation feeling.
  • FIG. 14 is a diagram showing a modified example of the load characteristic of the push switch 100 according to the embodiment.
  • the operating load of the pressing operation at the timing t1 does not suddenly decrease. There is.
  • the operating load of the pressing operation at the timing t2 is sharply reduced as in the example shown in FIG. There is.
  • the push switch 100 of the present embodiment uses the first metal contact 150 and the second metal contact 160, either one of the first metal contact 150 and the second metal contact 160 or the second metal contact 160 is used.
  • the first metal contact 150 and the second metal contact 160 having different operating load characteristics are used, and when viewed in a plan view from above, the first metal contact 150 and the first metal contact 150 of the first stem 140 are used. This is because the structure is such that the portion overlapping the midpoint position of the metal contact 160 of 2 is pressed (used as a force point).
  • the operating load characteristics of the first metal contact 150 and the second metal contact 160 are the same, and in order for either of them to reverse operation first, it is necessary to adjust the position of the force point each time, and the shape for each variation. It becomes necessary to prepare a plurality of types of the first stem 140, the second stem 130, and the like having different characteristics.
  • the operating load characteristics of the first metal contact 150 and the second metal contact 160 can be easily adjusted because the drawing amount of the press working can be adjusted.
  • the push switch 100 has a housing 110 having an accommodation space 110A opened upward, and a first one provided side by side on the inner bottom surface of the accommodation space 110A along the first direction.
  • the fixed contact portion, the second fixed contact portion, and the first fixed contact portion and the first switch are arranged above the first fixed contact portion, formed in a dome shape, and pressed from above to reverse operation.
  • the first metal contact 150 to be connected and the second fixed contact portion are arranged above the second fixed contact portion, and are formed in a dome shape and pressed from above to perform a reverse operation to connect the second fixed contact portion and the second switch.
  • a first metal contact 160 which is arranged above the first metal contact 150 and the second metal contact 160 and can simultaneously press the first metal contact 150 and the second metal contact 160.
  • a push switch 100 comprising a stem 140, wherein either one of the first metal contact 150 and the second metal contact 160 reverses faster than the other, and the first stem 140 is the first.
  • Guide portions 146 are provided at both ends in the direction, and the housing 110 has guide grooves extending in the vertical direction, which can be engaged with the guide portions 146, on each of the inner walls of the accommodation space 110A facing each other in the first direction.
  • the first stem 140 has 116 and can move up and down along the guide groove 116 with the guide portion 146 engaged with the guide groove 116.
  • the push switch 100 guides the tilt of the first stem 140 in the first direction by the guide unit 146, and guides the tilt of the first stem 140 in the second direction. It can be regulated by section 146. Therefore, according to the push switch 100 according to one embodiment, the first metal contact 150 and the second metal contact 160 can be pressed stepwise with suitable weighting characteristics.
  • the first metal contact 150 and the second metal contact 160 have different pressing pressures for starting the reversing operation
  • the first stem 140 has the first metal contact. It has a pair of protrusions 142, 144 that press the 150 and the second metal contact 160, and the midpoint position of the pair of protrusions 142, 144 is pressed from above.
  • the push switch 100 presses the midpoint position of the pair of protrusions 142, 144 of the first stem 140 downward, so that the first metal contact 150 and the second metal
  • the contact 160 can be elastically deformed stepwise. That is, the push switch 100 according to the embodiment can uniformly transmit the pressing force to each of the first metal contact 150 and the second metal contact 160.
  • the first stem 140 has an outer shape along the opening shape of the accommodation space 110A in a plan view from above.
  • the push switch 100 guides the tilt of the first stem 140 in the first direction by the outer shape of the first stem 140, and guides the tilt of the first stem 140 in the second direction of the first stem 140.
  • the inclination to the stem 140 can be regulated by the outer shape of the first stem 140. Therefore, according to the push switch 100 according to one embodiment, the first metal contact 150 and the second metal contact 160 can be pressed stepwise with suitable weighting characteristics.
  • the push switch 100 is provided so as to be vertically movable above the first stem 140 in the housing 110, and a pair of protrusions 142, 144 of the first stem 140 is provided in association with the pressing operation.
  • a second stem 130 for pressing the midpoint position is further provided.
  • the push switch 100 according to the embodiment can reliably press the midpoint positions of the pair of protrusions 142 and 144 of the first stem 140 downward. As a result, the push switch 100 according to the embodiment can more reliably and uniformly transmit the pressing force to each of the first metal contact 150 and the second metal contact 160.
  • the push switch 100 sets the stroke amount of the pressing operation for elastically deforming the first metal contact 150 to half the stroke amount of the apex of the first metal contact 150.
  • the stroke amount of the pressing operation for elastically deforming the second metal contact 160 can be set to half the stroke amount of the apex of the second metal contact 160. Therefore, according to the push switch 100 according to the embodiment, it is possible to realize a short stroke of the pressing operation.
  • the push switch 100 can increase the operating load required for the pressing operation more than the operating load applied to the metal contacts 150 and 160 by the lever principle working. It is possible to present a firm operation feeling to the user while using the metal contacts 150 and 160 having a small operation load. By using the metal contacts 150 and 160 having a small operating load (that is, shallow drawing), the life of the metal contacts 150 and 160 can be extended.
  • the second stem 130 has a downward convex portion 134 that protrudes downward from the lower surface of the second stem 130 and extends in the second direction. Then, the lower convex portion 134 presses the midpoint position of the pair of protruding portions 142 and 144 of the first stem 140.
  • the push switch 100 can more reliably press the midpoint positions of the pair of protrusions 142 and 144 of the first stem 140.
  • the accommodation space 110A has a substantially square shape in a plan view from above, and the first direction is the first of the accommodation space 110A in a plan view from above.
  • the second direction is the direction along the second diagonal line L2 of the accommodation space 110A in the plan view from above.
  • the push switch 100 can arrange the first metal contact 150 and the second metal contact 160 side by side along the first diagonal line L1 of the housing 110, and thus the housing. It is possible to realize a miniaturization of 110.
  • each of the first metal contact 150 and the second metal contact 160 is linearly cut out at both ends in the first direction along the second direction. It has both side parts.
  • the push switch 100 can arrange the first metal contact 150 and the second metal contact 160 side by side in close proximity to each other along the first diagonal line L1 of the housing 110. Therefore, the size of the housing 110 can be reduced.
  • Push switch 110 Housing 110A Accommodation space 114A 1st fixed contact 114B 2nd fixed contact 114C 3rd fixed contact 114D 4th fixed contact 116 Guide groove 120 Insulator 120A Operation part 130 2nd stem (2nd pressing) Element) 132 Upper convex part 134 Lower convex part (convex part) 140 1st stem (1st pressing member) 142 1st protrusion 144 2nd protrusion 146 Guide part 150 1st metal contact (1st movable contact member) 160 Second metal contact (second movable contact member) L1 1st diagonal L2 2nd diagonal

Landscapes

  • Push-Button Switches (AREA)

Abstract

La présente invention concerne un interrupteur à bouton-poussoir qui comprend : un boîtier qui a un espace de stockage ouvert vers le haut ; des premier et second contacts fixes qui sont agencés dans la surface inférieure interne de l'espace de stockage dans une première direction ; un premier élément de contact mobile qui est inversé de manière à réaliser une première connexion de commutation avec le premier contact fixe ; un second élément de contact mobile qui est inversé de façon à réaliser une seconde connexion de commutation avec le second contact fixe ; et un premier élément de pression qui peut presser simultanément les premier et second éléments de contact mobiles depuis le dessus, l'un des premier et second éléments de contact mobiles étant inversé plus tôt que l'autre, et le premier élément de pression peut se déplacer verticalement le long de seconds guides disposés sur des parois internes opposées de l'espace de stockage du boîtier, dans un état dans lequel des premiers guides aux deux extrémités dans une première direction sont en prise avec les seconds guides.
PCT/JP2020/009001 2019-03-11 2020-03-03 Interrupteur à bouton-poussoir WO2020184308A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019044082A JP2022074170A (ja) 2019-03-11 2019-03-11 プッシュスイッチ
JP2019-044082 2019-03-11

Publications (1)

Publication Number Publication Date
WO2020184308A1 true WO2020184308A1 (fr) 2020-09-17

Family

ID=72427087

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/009001 WO2020184308A1 (fr) 2019-03-11 2020-03-03 Interrupteur à bouton-poussoir

Country Status (2)

Country Link
JP (1) JP2022074170A (fr)
WO (1) WO2020184308A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH038828U (fr) * 1989-06-14 1991-01-28
US5796056A (en) * 1994-01-19 1998-08-18 Nbb Nachrichtentechnik Gmbh & Co. Kg Multi-stage switch
JP2000057888A (ja) * 1998-08-11 2000-02-25 Tokai Rika Co Ltd 多段スイッチ
JP2004146095A (ja) * 2002-10-22 2004-05-20 Smk Corp ２段動作プッシュスイッチ
JP2010135319A (ja) * 2008-12-08 2010-06-17 Hanbit Precision Co Ltd 多段動作スイッチ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH038828U (fr) * 1989-06-14 1991-01-28
US5796056A (en) * 1994-01-19 1998-08-18 Nbb Nachrichtentechnik Gmbh & Co. Kg Multi-stage switch
JP2000057888A (ja) * 1998-08-11 2000-02-25 Tokai Rika Co Ltd 多段スイッチ
JP2004146095A (ja) * 2002-10-22 2004-05-20 Smk Corp ２段動作プッシュスイッチ
JP2010135319A (ja) * 2008-12-08 2010-06-17 Hanbit Precision Co Ltd 多段動作スイッチ

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