WO2018123224A1 - Commutateur - Google Patents

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Publication number
WO2018123224A1
WO2018123224A1 PCT/JP2017/037896 JP2017037896W WO2018123224A1 WO 2018123224 A1 WO2018123224 A1 WO 2018123224A1 JP 2017037896 W JP2017037896 W JP 2017037896W WO 2018123224 A1 WO2018123224 A1 WO 2018123224A1
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WO
WIPO (PCT)
Prior art keywords
switch
contact portion
contact
slider
region
Prior art date
Application number
PCT/JP2017/037896
Other languages
English (en)
Japanese (ja)
Inventor
裕之 藤田
勇樹 山本
Original Assignee
オムロン株式会社
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 オムロン株式会社 filed Critical オムロン株式会社
Publication of WO2018123224A1 publication Critical patent/WO2018123224A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • 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
    • 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
    • H01H9/02—Bases, casings, or covers
    • H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Definitions

  • the present invention relates to a switch that opens and closes current.
  • a switch that switches between an open state and a closed state of a circuit by performing a pressing operation.
  • a switch comprises a normally closed fixed contact (or a normally open fixed contact) having a conducting area and an insulating area. Then, the slider is switched from the closed state to the open state (or from the open state to the closed state) by sliding from the conductive area to the insulating area (or from the insulating area to the conductive area).
  • Patent Document 1 discloses a switch device that solves this problem.
  • a first contact portion sliding on a common fixed contact as the drive member moves up and down, and a second contact portion and a third contact portion of individual fixed contacts.
  • the movable contact is formed with the second and third contact portions respectively making contact, and the second contact portion contacts the individual fixed contacts earlier than the third contact portion when the movable contact is moved. It is a structure. As a result, the second contact portion and the second contact portion are prevented from being consumed by arc discharge, and the contact life can be extended.
  • An aspect of the present invention is directed to achieving a switch with high durability and reliability.
  • the switch according to one aspect of the present invention is moved by being operated by an open / close contact portion, an operation member, and the operation member, and a movable contact portion sandwiching the open / close contact portion
  • a switch comprising: a surface including a first conduction region and a first insulation region formed side by side along a moving direction of the movable contact portion; and a switching contact portion along the moving direction And a back surface including a second conduction region and a second insulation region formed side by side, the movable contact portion sliding on the first sliding portion sliding on the front surface, and the second sliding portion sliding on the back surface
  • the sliding portion is the second conduction region and the second conduction region. It is different and the timing reaching the boundary with the insulating area.
  • a switch with high durability and reliability can be realized.
  • FIG. 5 is a sectional view taken along line AA in FIG.
  • FIG. 10 is a cross-sectional view taken along line AA of FIG. Fig.
  • FIG. 7 shows the operation of the switch, wherein (a) shows a state in which one contact portion is in contact with the first insulating region and the other contact portion is in contact with the second insulating region, (B) is a figure which shows the state which one contact part contacts the 1st conduction
  • FIG. 7 shows the operation of the switch, wherein (a) shows a state in which one contact portion is in contact with the first insulating region and the other contact portion is in contact with the second insulating region, (B) is a figure which shows the state which one contact part contacts the 1st conduction
  • Embodiment 14 is a cross-sectional view of the slider and the normally-opened fixed contact portion in a state where the slider is not pressed by the push button in the switch according to Embodiment 3 of the present invention. It is a front view of the upper part of the base of a slider and a base in the switch which concerns on Embodiment 4 of this invention.
  • Embodiment 1 The switch 1A according to the first embodiment of the present invention will be described in detail with reference to FIGS.
  • FIG. 1 is a perspective view showing the appearance of the switch 1A.
  • FIG. 2 is an exploded perspective view showing the configuration of the switch 1A.
  • the + x direction in FIG. 1 will be described as the forward direction, -x direction as the rear direction, + y direction as the right direction, -y direction as the left direction, + z direction as the upper direction, and -z direction as the lower direction.
  • the switch 1A fixes the case 2, the base 3, the push button (operation member) 4, the waterproof and dustproof rubber cap 5, and the rubber cap 5 to the case 2.
  • the cap holder 6, the coil spring 7, the first fixed terminal 8, the second fixed terminal 9, and the slider 10 are provided.
  • the case 2 is constituted by a substantially rectangular first member 2a and a second member 2b which protrudes rightward from the side surface 2c of the first member 2a.
  • the case 2 constitutes a housing of the switch 1A together with a side wall 3a of the base 3 described later.
  • the first member 2 a has a cavity formed therein, and an opening 2 d formed on the surface facing the side surface 2 c.
  • the 2nd crevice 2g is formed.
  • an attachment hole 2h for attaching the switch 1A to a device on which the switch 1A is mounted is formed.
  • an annular protrusion 2i for defining the mounting position of the switch 1A with respect to the above device is formed.
  • the base 3 includes side walls 3a and a base 3b as shown in FIG.
  • the base 3 is formed of a resin and has an insulating property.
  • the side wall 3 a has a flat plate shape, and closes the opening 2 d of the case 2 to configure a case of the switch 1 A together with the case 2.
  • two terminal holes 3aa and 3ab are formed aligned in the vertical direction.
  • the base 3 b is a plate-like body housed in the inside of a case constituted by the case 2 and the side wall 3 a.
  • the base 3 b accommodates most of the first fixed terminal 8 and the second fixed terminal 9 described later inside, and supports the first fixed terminal 8 and the second fixed terminal 9.
  • FIG. 3 is a perspective view of the upper portion of the slider 10 and the base 3 b of the base 3 in the switch 1A.
  • FIG. 4 is a front view of the upper portion of the slider 10 and the base 3 b of the base 3 in the switch 1A.
  • a cylindrical rib 3d projecting upward is formed at the upper center of the base 3b.
  • a protrusion 3e and a protrusion 3f protruding upward are formed on the right side (+ Y direction side) with the cylindrical rib 3d interposed therebetween, and the column rib 3d interposed therebetween
  • protrusions 3g and 3h protruding upward are formed on the left side ( ⁇ Y direction side).
  • FIG. 5 is a sectional view taken along line AA in FIG. As shown in FIG. 5, a level
  • the push button 4 includes a pedestal 4a in which a recess is formed, and a cylindrical pressed portion 4b extending upward from the pedestal 4a.
  • the pressed portion 4 b is disposed inside the case 2 so as to be movable in the vertical direction.
  • An upper end portion of the pressed portion 4 b protrudes upward from the case 2 through the insertion hole 2 e of the case 2 and a through hole formed in the rubber cap 5.
  • the push button 4 can be moved in the vertical direction by pressing the pressed portion 4 b from the outside by a lever or the like.
  • the first fixed terminal 8 is made of metal and has conductivity.
  • the first fixed terminal 8 includes a first slider connecting terminal 8a extending in the vertical direction, an external terminal connecting terminal 8b having a surface perpendicular to the vertical direction, and a first slider connecting terminal 8a. And a connection portion 8c for connecting the external terminal connection terminal portion 8b.
  • the first slider connection terminal portion 8a is constituted by a buried portion 8d extending upward from the connection portion 8c and a first slidable portion 8e extending rightward from the buried portion 8d.
  • the buried portion 8 d is buried in the inside of the protrusion 3 e of the base 3.
  • the first slidable portion 8 e protrudes from the projecting portion 3 e of the base 3 to the outside of the base 3, and the lower surface is in contact with the upper surface of the projecting portion 3 f of the base 3.
  • the front surface of the first slidable portion 8e and the front surface of the projecting portion 3h exist on the same plane.
  • the rear surface of the first slidable portion 8e and the rear surface of the projecting portion 3h exist on the same plane.
  • the first slidable portion 8e of the first fixed terminal 8 is provided with a contact portion 12ab and contact of the slider 10, which will be described later, from when the push button 4 is not pressed until the push button 4 is completely pressed.
  • the portion 12bb extends in the vertical direction so as to be able to contact the front surface and the rear surface of the first slidable portion 8e.
  • the slider 10 and the first fixed terminal 8 are always in a state of being electrically connected. That is, the front and rear surfaces of the first slidable portion 8e function as a common fixed contact portion in the switch 1A.
  • a part of the external terminal connection terminal portion 8b is exposed from the switch 1A through the terminal hole 3aa formed in the side wall 3a of the base 3 and is connected to an external terminal (external circuit) not shown.
  • the second fixed terminal 9 is made of metal and has conductivity.
  • the second fixed terminal 9 includes a second slider connection terminal 9a extending in the vertical direction, an external terminal connection terminal 9b having a surface perpendicular to the vertical direction, and a second slider connection terminal 9a.
  • the connection part 9c which connects the terminal part 9b for external terminal connection is provided.
  • the second slider connection terminal portion 9a is constituted by a buried portion 9d extending upward from the connection portion 9c and a second slidable portion 9e extending leftward from the buried portion 9d. There is.
  • the buried portion 9 d is housed inside the protruding portion 3 g of the base 3.
  • the first slidable portion 8 e protrudes from the protrusion 3 g of the base 3 to the outside of the base 3.
  • a step parallel to the YZ plane is formed at the center of the lower surface of the second slidable portion 9e in the front-rear direction.
  • the lower end of the rear surface 9eb of the second slidable portion 9e is lower than the lower end of the front surface 9ea of the second slidable portion 9e.
  • the step formed on the lower surface of the second slidable portion 9e and the step formed on the upper surface of the protrusion 3h are engaged, and the lower surface of the second slidable portion 9e and the upper surface of the protrusion 3h I am in touch.
  • the front surface 9ea of the second slidable portion 9e and the front surface 3ha of the projecting portion 3h exist on the same plane.
  • the rear surface 9eb of the second slidable portion 9e and the rear surface 3hb of the projecting portion 3h exist on the same plane.
  • the front surface 9ea (first conduction region) of the second slidable portion 9e having conductivity and the front surface 3ha (first insulation region) of the projecting portion 3h having insulation properties are the first normally closed fixed contacts in the switch 1A. It functions as part C1.
  • the rear surface 9eb (second conduction region) of the second slidable portion 9e having conductivity and the rear surface 3hb (second insulation region) of the insulating protrusion 3h are normally closed in the switch 1A. It functions as a fixed contact portion C2.
  • the first normally closed fixed contact C1 and the second normally closed fixed contact C2 form a normally closed fixed contact (switching contact) in the switch 1A.
  • a part of the external terminal connection terminal portion 9b is exposed from the switch 1A through the terminal hole 3ab formed in the side wall 3a of the base 3, and is connected to an external terminal (external circuit) not shown.
  • the slider 10 is formed by bending a conductive metal plate, and has conductivity.
  • the slider 10 is provided with the connection part 11 and the movable contact parts 12 * 13, as shown to FIG. 2 and FIG.
  • the movable contact portion 12 is formed at the right end of the connecting portion 11, and the movable contact portion 13 is formed at the left end of the connecting portion 11.
  • the movable contact portion 12 includes a first movable contact portion 12a and a second movable contact portion 12b, and the first fixed contact is formed by the first movable contact portion 12a and the second movable contact portion 12b.
  • a clip is configured to sandwich the first slidable portion 8e of the terminal 8 (the above-mentioned common fixed contact portion).
  • the first movable contact portion 12a includes an arm portion 12aa extending downward from the left end of the connecting portion 11, and a contact portion 12ab provided at the tip of the arm portion 12aa and contacting the front surface of the first slidable portion 8e. Have.
  • the second movable contact portion 12b is provided at an end of the arm portion 12ba extending downward from the left end of the connecting portion 11 and at the tip of the arm portion 12ba and contacts the rear surface of the first slidable portion 8e. It is equipped with 12bb.
  • the contact portion 12ab and the contact portion 12bb contact the first slidable portion 8e at the same position in the vertical direction.
  • the movable contact portion 13 includes a first movable contact portion 13a and a second movable contact portion 13b, as shown in FIGS. 3 to 5, and the first movable contact portion 13a and the second movable contact portion 13b
  • the clip which comprises said normally-closed fixed contact part is comprised.
  • the first movable contact portion 13a is an arm portion 13aa extending downward from the right end of the connecting portion 11, and a contact portion provided at the tip of the arm portion 13aa and sliding on the first normally closed fixed contact portion C1 (first Sliding portion) 13ab.
  • the second movable contact portion 13b is provided at an end of the arm portion 13ba extending downward from the right end of the connecting portion 11 and at the tip of the arm portion 13ba, and contacts the second normally closed fixed contact portion C2.
  • the contact portion 13ab and the contact portion 13bb respectively contact the first normally closed fixed contact portion C1 and the second normally closed fixed contact portion C2 at the same position in the vertical direction.
  • the connecting portion 10 a is held by the pedestal 4 a of the push button 4.
  • the pedestal 4 a of the push button 4 presses the connecting portion 11 of the slider 10 downward in conjunction with the pressing, and the slider 10 moves downward.
  • the coil spring 7 is an elastic body disposed between the base 3 and the slider 10.
  • the upper end of the coil spring 7 is in contact with the connecting portion 11 of the slider 10 in the case 2, and the cylindrical rib 3 d of the base 3 is inserted at the lower end. Thereby, the coil spring 7 biases an upward force to the connection portion 11 of the slider 10.
  • FIG. 6 shows the operation of the switch 1A.
  • the contact portion 13ab contacts the front surface 9ea of the second slidable portion 9e
  • the contact portion 13bb is the rear surface of the second slidable portion 9e.
  • 9b is a view showing a state in which the contact portion 13ab is in contact with the front surface 3ha of the projecting portion 3h and the contact portion 13bb is in contact with the rear surface 9eb of the second slidable portion 9e. It is a figure which shows the state which is, and (c) is a figure which shows the state which contact part 13ab contacts front surface 3ha of the protrusion part 3h, and contact part 13bb contacts back surface 3hb of the protrusion part 3h.
  • the slider 10 Before performing the opening operation in the switch 1A, as shown in (a) of FIG. 6, the slider 10 is biased by the coil spring 7, and the slider 10 is in the upper initial position (hereinafter referred to as Also referred to as the first position).
  • the contact portion 13ab of the first movable contact portion 13a contacts the front surface 9ea of the second slidable portion 9e
  • the contact portion 13bb of the second movable contact portion 13b is the second slidable portion 9e. It is in contact with the back surface 9eb. Therefore, the second fixed terminal 9 and the slider 10 are electrically connected, and a state in which the first fixed terminal 8 and the second fixed terminal 9 are energized (that is, the switch 1A is conductive) State).
  • the pressed portion 4 b of the push button 4 is pressed from the outside.
  • the slider 10 is pressed by the push button 4 and moves downward against the biasing force of the coil spring 7.
  • the contact portion 13ab contacts the front surface 3ha of the protrusion 3h, and the front surface 9ea of the second slidable portion 9e Move to a position away from (hereinafter referred to as the second position).
  • the contact portion 13bb is in contact with the rear surface 9eb of the second slidable portion 9e, so that the distance between the first fixed terminal 8 and the second fixed terminal 9 is It is in an energized state (that is, the switch 1A is in a conducting state).
  • the pressed portion 4 b of the push button 4 is further pressed.
  • the slider 10 moves further downward, and as shown in FIG. 6C, in the slider 10, the contact portion 13bb contacts the rear surface 3hb of the protrusion 3h, and the second slidable portion It moves to a position away from the rear surface 9eb of 9e (hereinafter referred to as the third position).
  • the contact portion 13ab is in contact with the front surface 3ha of the projection 3h
  • the contact portion 13bb is in contact with the rear surface 3hb of the projection 3h.
  • the electrical connection between the second fixed terminal 9 and the slider 10 is cut off, and no current flows between the first fixed terminal 8 and the second fixed terminal 9 (that is, the switch 1A is in the insulated state). ).
  • the pressed portion 4b of the push button 4 is in a state of being pushed downward (that is, positioned at the fourth position). That is, the contact portion 13ab is in contact with the front surface 3ha of the projection 3h, and the contact portion 13bb is in contact with the rear surface 3hb of the projection 3h, and the gap between the first fixed terminal 8 and the second fixed terminal 9 is It is in the state where it has not energized.
  • the contact portion 13ab contacts the front surface 9ea of the second slidable portion 9e and separates from the front surface 3ha of the protrusion 3h.
  • the slider 10 moves to the initial position (first position).
  • the closing operation of the switch 1A is completed.
  • switch 1A In general, in a switch that opens and closes a large current (e.g., a current of several hundreds of mA or more), an arc discharge occurs at a contact point of the switch when the conduction state and the insulation state are switched. When the arc discharge occurs, the contact point becomes high temperature due to the arc discharge, the terminal melts, and the terminal is consumed.
  • a large current e.g., a current of several hundreds of mA or more
  • the slider 10 is pressed by the push button 4 in the first normally closed fixed contact C1, which is the front surface (surface) of the normally closed fixed contact.
  • the front surface 9ea of the second slidable portion 9e and the front surface 3ha of the projecting portion 3h are sequentially arranged in the moving direction from the position (first position).
  • the second normally closed fixed contact C2 which is the rear surface (rear surface) of the normally closed fixed contact, moves in a direction in which the slider 10 is pressed by the push button 4 and moves from the initial position (first position)
  • the rear surface 9eb of the second slidable portion 9e and the rear surface 3hb of the protrusion 3h are in order.
  • the position of the boundary between the rear surface 9eb of the second slidable portion 9e and the rear surface 3hb of the projecting portion 3h in the moving direction (Z-axis direction) of the slider 10 is the front surface of the second slidable portion 9e. It is below the position of the boundary between 9ea and the front 3ha of the projection 3h.
  • the switching position between the conductive state and the insulating state in the opening operation of the switch 1A is the boundary between the rear surface 9eb of the second slidable portion 9e and the rear surface 3hb of the projection 3h.
  • arc discharge is generated on the side of the second normally closed fixed contact C2 of the normally closed fixed contact.
  • the position at which the conduction state and the insulation state are switched in the closing operation of the switch 1A is the boundary between the rear surface 9eb of the second slidable portion 9e and the rear surface 3hb of the protrusion 3h.
  • an arc discharge is generated on the side of the second normally closed fixed contact C2 of the normally closed fixed contact.
  • arc discharge is generated on the side of the second normally closed fixed contact C2 of the normally closed fixed contact in both the opening operation and the closing operation. That is, when the contact portion 13ab is at a position to switch between conduction and insulation in the first normally closed fixed contact portion C1 (that is, the boundary between the front surface 9ea of the second slidable portion 9e and the front surface 3ha of the projection 3h), The contact portion 13bb is in contact with the rear surface 9eb of the second slidable portion 9e, and the slider 10 and the second fixed terminal 9 have the same potential. Therefore, arc discharge does not occur in the first normally closed fixed contact C1.
  • the contact portions 13ab of the first normally closed fixed contact portion C1 and the first movable contact portion 13a can be prevented from being consumed by arc discharge.
  • consumable powder generated by arc discharge can prevent conduction or insulation of the contacts.
  • switch 1A consumable powder generated due to arc discharge is generated only on the second normally closed fixed contact C2 side, so the consumable powder is on the opposite side to the second normally closed fixed contact C2 side. It is difficult to move to the fixed contact C1 side. Therefore, the switch 1A can be prevented from becoming conduction failure and insulation failure. For this reason, compared with the conventional switch, while being able to open and close high electric current, it can maintain now a conduction
  • the switch 1A realizes a configuration in which no arc discharge is caused in the contact portion 13ab by the one second slidable portion 9e and the one movable contact portion 13 sandwiching the second slidable portion 9e. . Therefore, the switch 1A is a switch with high durability and reliability with a simple configuration.
  • the switch 1B in this modification is a second example of the movable contact portion 14 of the switch 10 in place of the movable contact portion 13 of the slider 10, and a second slidable portion 9e of the second fixed terminal 9 in the switch 1A.
  • the sliding portion 9f is provided with a projection 3i in place of the projection 3h of the base 3 in the switch 1A.
  • FIG. 7 is a cross-sectional view of the slider 10 and the normally closed fixed contact portion of the switch 1B.
  • the upper surface of the protrusion 3i of the base 3 is a flat surface
  • the lower surface of the second slidable portion 9f is a flat surface.
  • the upper surface of the projecting portion 3i and the lower surface of the second slidable portion 9f are in contact with each other in a plane perpendicular to the vertical direction (a plane parallel to the XY plane).
  • the front surface 9fa (first conduction region) of the second slidable portion 9f having conductivity and the front surface 3ia (first insulation region) of the projecting portion 3i having insulation are the first normally closed fixed contacts in the switch 1B. It functions as part C3.
  • the rear surface 9fb (second conduction region) of the second slidable portion 9f having conductivity and the rear surface 3ib (second insulation region) of the insulating protrusion 3i are normally closed in the switch 1B. It functions as a fixed contact portion C4.
  • the first normally closed fixed contact C3 and the second normally closed fixed contact C4 constitute a normally closed fixed contact (switching contact) in the switch 1B.
  • the movable contact portion 14 includes a first movable contact portion 14a and a second movable contact portion 14b, and the first movable contact portion 14a and the second movable contact portion 14b described above.
  • a clip for sandwiching the normally closed fixed contact portion is configured.
  • the first movable contact portion 14a includes an arm portion 14aa extending downward from the right end of the connecting portion 11, and a contact portion provided at the tip of the arm portion 14aa and sliding on the first normally closed fixed contact portion C3 (first Sliding portion) 14ab.
  • the second movable contact portion 14b is provided at an end of the arm portion 14ba extending downward from the right end of the connecting portion 11 and at the tip of the arm portion 14ba and slides on the second normally closed fixed contact portion C4. And (second sliding portion) 14bb.
  • the length of the arm 14aa of the first movable contact 14a is longer than the length of the arm 14ba of the second movable contact 14b.
  • FIG. 8 shows the operation of the switch 1B.
  • the contact portion 14ab contacts the front surface 9fa of the second slidable portion 9f
  • the contact portion 14bb is the back surface of the second slidable portion 9f.
  • 9b is a view showing a state in contact with 9fb, where (b) shows the contact portion 14ab contacting the front surface 3ia of the projecting portion 3i and the contact portion 14bb contacting the rear surface 9fb of the second slidable portion 9f It is a figure which shows the state which is, and (c) is a figure which shows the state which contact part 14ab contacts front surface 3ia of the protrusion part 3i, and contact part 14bb contacts back surface 3ib of the protrusion part 3i.
  • the slider 10 Before the opening operation of the switch 1B is performed, as shown in FIG. 8A, the slider 10 is biased by the coil spring 7 and the slider 10 is positioned at the upper initial position. There is. In this state, the second fixed terminal 9 and the slider 10 are electrically connected, and a state in which the first fixed terminal 8 and the second fixed terminal 9 are energized (ie, switch 1B) Is in the conductive state).
  • the pressed portion 4 b of the push button 4 is pressed from the outside.
  • the slider 10 is pressed by the push button 4 and moves downward against the biasing force of the coil spring 7.
  • the contact portion 14ab of the first movable contact portion 14a contacts the front surface 3ia of the protrusion 3i and the second object It moves to a position (second position) away from the front surface 9fa of the sliding portion 9f.
  • the first fixed terminal 8 and the second fixed terminal 8b It is in a state where current is supplied between the fixed terminal 9 and the fixed terminal 9 (that is, the switch 1B is in a conductive state).
  • the slider 10 is further moved downward, and as shown in FIG. 8C, in the slider 10, the contact portion 14bb is in contact with the rear surface 3ib of the projecting portion 3i and the second slidable portion It moves to a position (third position) away from the rear surface 9fb of 9f.
  • the contact portion 14ab is in contact with the front surface 3ia of the protrusion 3i
  • the contact portion 14bb is in contact with the rear surface 3ib of the protrusion 3i.
  • the electrical connection between the second fixed terminal 9 and the slider 10 is cut off, and no current flows between the first fixed terminal 8 and the second fixed terminal 9 (that is, the switch 1B is in the insulated state). ).
  • the pressed portion 4b of the push button 4 is in a state of being pushed downward (i.e., positioned at the fourth position). That is, the contact portion 14ab is in contact with the front surface 3ia of the projection 3i, and the contact portion 14bb is in contact with the rear surface 3ib of the projection 3i, and the space between the first fixed terminal 8 and the second fixed terminal 9 is It is in the state where it has not energized.
  • the contact portion 14bb contacts the rear surface 9fb of the second slidable portion 9f, and the rear surface 3ib of the protrusion 3i Move to a position away from (second position).
  • the contact portion 14bb comes in contact with the rear surface 9fb of the second slidable portion 9f, so that an electrical connection is established between the first fixed terminal 8 and the second fixed terminal 9 (that is, , And the switch 1B becomes conductive.
  • the contact portion 14ab contacts the front surface 9fa of the second slidable portion 9f and separates from the front surface 3ia of the protrusion 3i. Then, when the slider 10 further moves upward, as shown in (a) of FIG. 8, the slider 10 moves to the initial position (first position). Thus, the closing operation of the switch 1B is completed.
  • the switching position of the switch 1B between the conductive state and the insulating state in the opening operation and the closing operation is the boundary between the rear surface 9fb of the second slidable portion 9f and the rear surface 3ib of the projection 3i. It becomes. Therefore, in both the opening operation and the closing operation, arc discharge occurs at the second normally closed fixed contact C4 side of the normally closed fixed contact.
  • the contact portion 14ab when the contact portion 14ab is at a position where conduction and insulation in the first normally closed fixed contact portion C3 are switched (that is, the boundary between the front surface 9fa of the second slidable portion 9f and the front surface 3ia of the projection 3i), The contact portion 14bb is in contact with the rear surface 9fb of the second slidable portion 9f, and the slider 10 and the second fixed terminal 9 have the same potential. Therefore, arc discharge does not occur in the first normally closed fixed contact C3. As a result, the contact portions 14ab of the first normally closed fixed contact portion C3 and the first movable contact portion 14a can be prevented from being consumed by arc discharge.
  • consumable powder generated by arc discharge on the second normally closed fixed contact C4 side is hard to move to the first normally closed fixed contact C3 side which is the opposite side of the second normally closed fixed contact C4 side. Therefore, it is possible to prevent the switch 1B conduction failure and insulation failure.
  • the switch 1C in this embodiment is a projection instead of the second slidable portion 9g of the second fixed terminal 9 of the switch 1A instead of the second slidable portion 9g, and a protrusion 3h of the base 3 of the switch 1A. It has 3j.
  • FIG. 9 is a front view of the upper portion of the slider 10 and the base 3 b of the base 3 in the switch 1C.
  • FIG. 10 is a cross-sectional view taken along line AA of FIG.
  • the protrusion 3 j protrudes leftward from the protrusion 3 g in the upper part of the protrusion 3 g as shown in FIG. 9. Further, as shown in FIG. 10, a step parallel to the YZ plane is formed at the center in the front-rear direction of the lower surface of the protrusion 3j.
  • the second slidable portion 9g is extended leftward from the buried portion 9d, and protrudes upward from the upper portion of the base 3 as shown in FIGS.
  • a step parallel to the YZ plane is formed at the center of the top surface of the second slidable portion 9g in the front-rear direction.
  • the step formed on the upper surface of the second slidable portion 9g and the step formed on the lower surface of the projecting portion 3j are engaged, and the upper surface of the second slidable portion 9g and the upper surface of the projecting portion 3j I am in touch.
  • the front surface 9ga (first conduction region) of the second slidable portion 9g having conductivity and the front surface 3ja (first insulation region) of the insulating protrusion 3j are provided.
  • the rear surface 9gb (second conduction region) of the second slidable portion 9g having conductivity and the rear surface 3jb (second insulation region) of the projecting portion 3j having insulation are normally open in the switch 1C. It functions as the fixed contact part D2.
  • the first normally open fixed contact D1 and the second normally open fixed contact D2 constitute a normally open fixed contact (switching contact) in the switch 1C.
  • FIG. 11 shows the operation of the switch 1C, where (a) shows a state in which the contact portion 13ab contacts the front surface 3ja of the projection 3j and the contact portion 13bb contacts the rear surface 3jb of the projection 3j. It is a figure which shows, and (b) is a figure which shows the state which contact part 13ab contacts front 9ga of the 2nd sliding part 9g, and contact part 13bb contacts back 3jb of projection part 3j, (C) is a figure which shows the state which contact part 13ab contacts front surface 9ga of the 2nd sliding part 9g, and contact part 13bb contacts back surface 9gb of the 2nd sliding part 9g.
  • ⁇ Close operation> First, the closing operation of the switch 1C will be described.
  • the slider 10 Before performing the closing operation in the switch 1C, as shown in (a) of FIG. 11, the slider 10 is biased by the coil spring 7, and the slider 10 is in the upper initial position (hereinafter referred to as Also referred to as the first position).
  • the contact portion 13ab of the first movable contact portion 13a contacts the front surface 3ja of the projecting portion 3j
  • the contact portion 13bb of the second movable contact portion 13b contacts the rear surface 3jb of the projecting portion 3j.
  • the second fixed terminal 9 and the slider 10 are electrically disconnected, and no current flows between the first fixed terminal 8 and the second fixed terminal 9 (that is, the switch 1C is insulated). State).
  • the pressed portion 4 b of the push button 4 is pressed from the outside.
  • the slider 10 is pressed by the push button 4 and moves downward against the biasing force of the coil spring 7.
  • the contact portion 13ab contacts the front surface 9ga of the second slidable portion 9g, and the front surface 3ja of the projection 3j Move to a position away from (hereinafter referred to as the second position).
  • the contact portion 13ab contacts the front surface 9ga of the second slidable portion 9g, so the second fixed terminal 9 and the slider 10 are electrically connected.
  • a state is established in which the first fixed terminal 8 and the second fixed terminal 9 are energized (that is, the switch 1C is in the energized state).
  • the slider 10 is further moved downward, and as shown in (c) of FIG. 11, the slider 10 contacts the rear surface 9gb of the second slidable portion 9g with the contact portion 13bb being a projection. It moves to a position away from the rear surface 3jb of 3j (hereinafter referred to as the third position).
  • the pressed portion 4b of the push button 4 is in a state of being pushed downward (that is, located at the fourth position). That is, the contact portion 13ab is in contact with the front surface 9ga of the second slidable portion 9g, and the contact portion 13bb is in contact with the rear surface 9gb of the second slidable portion 9g. And the second fixed terminal 9 are energized.
  • the contact portion 13ab contacts the front surface 3ja of the protrusion 3j and separates from the front surface 9ga of the second slidable portion 9g.
  • the contact portion 13ab contacts the front surface 3ja of the projection 3j
  • the contact portion 13bb contacts the rear surface 3jb of the projection 3j, so that the second fixed terminal 9 and the slider 10 are electrically connected.
  • the connection is cut off, and no current flows between the first fixed terminal 8 and the second fixed terminal 9 (that is, the switch 1C is in the insulating state).
  • the slider 10 is pressed by the push button 4 in the first normally open fixed contact portion D1, which is the front surface (surface) of the normally open fixed contact portion.
  • the front surface 3ja of the protrusion 3j and the front surface 9ga of the second slidable portion 9g are sequentially arranged in the moving direction from the first position).
  • the second normally open fixed contact D2 which is the rear surface (rear surface) of the normally open fixed contact, moves in a direction in which the slider 10 is pressed by the push button 4 and moves from the initial position (first position)
  • the rear surface 3 j b of the protrusion 3 j and the rear surface 9 gb of the second slidable portion 9 g are in order.
  • the position of the boundary between the rear surface 9gb of the second slidable portion 9g and the rear surface 3jb of the protrusion 3j in the moving direction of the slider 10 (Z-axis direction) is the front surface of the second slidable portion 9g. It is below the position of the boundary of 9ga and front 3ja of projection 3j.
  • the positions at which the conduction state and the insulation state of the switch 1C are switched are the front surface 9ga of the second slidable portion 9g and the front surface 3ja of the projection 3j. It becomes the boundary of As a result, in both the opening operation and the closing operation of the switch 1C, an arc discharge is generated on the side of the first normally open fixed contact portion D1 of the normally open fixed contact portion.
  • the contact portion 13bb when the contact portion 13bb is at a position where conduction and insulation in the second normally open fixed contact portion D2 are switched (that is, the boundary between the rear surface 9gb of the second slidable portion 9g and the rear surface 3jb of the projection 3j), The contact portion 13ab is in contact with the front surface 9ga of the second slidable portion 9g, and the slider 10 and the second fixed terminal 9 have the same potential. Therefore, no arc discharge occurs in the second normally open fixed contact portion D2. As a result, the contact portions 13bb of the second normally open fixed contact portion D2 and the second movable contact portion 13b can be prevented from being consumed by arc discharge.
  • the switch 1C since expendable powder generated by arc discharge is generated only on the first normally open fixed contact portion D1, the expendable powder is on the opposite side of the first normally open fixed contact portion D1. It is difficult to move to the fixed contact D2 side. Therefore, it is possible to prevent the switch 1C from becoming conduction failure and insulation failure.
  • the movable contact portion 14 of the switch 10 in the switch 1C is replaced with the movable contact portion 14 and the second slidable portion 9h is replaced with the second slidable portion 9g of the switch 1C.
  • the protrusion 3k is provided instead of the protrusion 3j of the base 3 in the switch 1C.
  • FIG. 12 is a cross-sectional view of the slider 10 and the normally open fixed contact portion of the switch 1D.
  • the lower surface of the protrusion 3k of the base 3 is a flat surface
  • the upper surface of the second slidable portion 9h is a flat surface.
  • the lower surface of the protruding portion 3k and the upper surface of the second slidable portion 9h are in contact with each other in a plane perpendicular to the vertical direction (a plane parallel to the XY plane).
  • the front surface 9ha (first conductive region) of the second slidable portion 9h having conductivity and the front surface 3ka (first insulating region) of the projecting portion 3k having insulating properties are the first normally fixed fixed contacts in the switch 1D. It functions as part D3.
  • the rear surface 9hb (second conductive region) of the second slidable portion 9h having conductivity and the rear surface 3kb (second insulating region) of the projecting portion 3k having insulating properties are the second normally open portions in the switch 1B. It functions as the fixed contact portion D4.
  • the first normally open fixed contact D3 and the second normally open fixed contact D4 constitute a normally open fixed contact (opening / closing contact) in the switch 1D.
  • FIG. 13 shows the operation of the switch 1D, where (a) shows a state in which the contact portion 14ab contacts the front surface 3ka of the projection 3k and the contact portion 14bb contacts the rear surface 3kb of the projection 3k. It is a figure which shows, and (b) is a figure which shows the state which contact part 14ab contacts front 9ha of the 2nd sliding part 9h, and contact part 14bb contacts back 3kb of projection part 3k, (C) is a figure which shows the state which contact part 14ab contacts front surface 9ha of the 2nd sliding part 9h, and contact part 14bb contacts back surface 9hb of the 2nd sliding part 9h. ⁇ Close operation> First, the closing operation of the switch 1D will be described.
  • the slider 10 Before performing the closing operation in the switch 1D, as shown in (a) of FIG. 13, the slider 10 is biased by the coil spring 7, and the slider 10 is in the upper initial position (hereinafter referred to as Also referred to as the first position).
  • the contact portion 14ab of the first movable contact portion 14a contacts the front surface 3ka of the projection 3k
  • the contact portion 14bb of the second movable contact portion 14b contacts the rear surface 3kb of the projection 3k.
  • the second fixed terminal 9 and the slider 10 are electrically disconnected, and no current flows between the first fixed terminal 8 and the second fixed terminal 9 (that is, the switch 1D is insulated). State).
  • the pressed portion 4 b of the push button 4 is pressed from the outside.
  • the slider 10 is pressed by the push button 4 and moves downward against the biasing force of the coil spring 7.
  • the contact portion 14ab contacts the front surface 9ha of the second slidable portion 9h, and the front surface 3ka of the protrusion 3k Move to a position away from (hereinafter referred to as the second position).
  • the contact portion 14ab contacts the front surface 9ha of the second slidable portion 9h, so the second fixed terminal 9 and the slider 10 are electrically connected.
  • a state is established in which the first fixed terminal 8 and the second fixed terminal 9 are energized (that is, the switch 1D is in the energized state).
  • the pressed portion 4 b of the push button 4 is further pressed.
  • the slider 10 moves further downward, and as shown in (c) of FIG. 13, in the slider 10, the contact portion 14bb contacts the rear surface 9hb of the second slidable portion 9h and the projection portion It moves to a position away from the rear surface 3 kb of 3 k (hereinafter referred to as the third position).
  • the pressed portion 4b of the push button 4 is in a state of being pushed downward (that is, located at the fourth position). That is, the contact portion 14ab is in contact with the front surface 9ha of the second slidable portion 9h, and the contact portion 14bb is in contact with the rear surface 9hb of the second slidable portion 9h. And the second fixed terminal 9 are energized.
  • the contact portion 14ab contacts the front surface 3ka of the protrusion 3k and separates from the front surface 9ha of the second slidable portion 9h.
  • the contact portion 14ab contacts the front surface 3ka of the protrusion 3k
  • the contact portion 14bb contacts the rear surface 3kb of the protrusion 3k, so that the second fixed terminal 9 and the slider 10 are electrically connected.
  • the connection is cut off, and no current flows between the first fixed terminal 8 and the second fixed terminal 9 (that is, the switch 1D is in the insulating state).
  • the switching position of the switch 1D between the conduction state and the insulation state is the boundary between the front surface 9ha of the second slidable portion 9h and the front surface 3ka of the projection 3k. It becomes. Therefore, in both the opening operation and the closing operation, arc discharge occurs on the side of the first normally open fixed contact D3 of the normally open fixed contact.
  • FIG. 14 is a cross-sectional view of the slider 10 and the normally open fixed contact portion of the switch 1E in a state in which the slider 10 is not pressed by the push button 4.
  • the switch 1 ⁇ / b> E includes a protrusion 3 m instead of the protrusion 3 j of the switch 1 ⁇ / b> C in the second embodiment.
  • a front surface 9 ga (first conduction region) of the second slidable portion 9 g having conductivity and a front surface 3 ma (first insulation region) of the projecting portion 3 m having insulation are the first always-opened fixed contacts in the switch 1E. It functions as part D1.
  • the back surface 9gb (second conduction region) of the second slidable portion 9g having conductivity and the back surface 3mb (second insulation region) of the projecting portion 3m having insulation are normally open in the switch 1E. It functions as the fixed contact part D2.
  • the first normally open fixed contact D1 and the second normally open fixed contact D2 constitute a normally open fixed contact (switching contact) in the switch 1E.
  • the distance between the front surface 3ma and the rear surface 3mb decreases at the top of the protrusion 3m as the slider 10 moves from the initial position in the opposite direction (that is, upward direction) to the movement direction. It has a shape. As a result, when the slider 10 is pressed by the push button 4 and moves downward from the initial state, the contact portion 13ab and the contact portion 13bb can smoothly sandwich the protrusion 3m.
  • Embodiment 4 Another embodiment of the present invention is described below with reference to FIG. In addition, about the member which has the same function as the member demonstrated in the said embodiment for convenience of explanation, the same code
  • the switch 1F in the present embodiment includes a movable contact portion 15 instead of the movable contact portion 13 in the first embodiment.
  • FIG. 15 is a front view of the upper portion of the slider 10 and the base 3 b of the base 3 in the switch 1F.
  • the movable contact portion 15 includes a first movable contact portion 15a.
  • the first movable contact portion 15a is provided at an end of an arm portion 15aa extending downward from the left end of the connecting portion 11 and at the tip of the arm portion 15aa, and two contact portions contacting the front surface 9ea of the second slidable portion 9e (1st sliding part) 15ab * 15ac is provided.
  • the contact portions 15ab and 15ac are formed apart from each other in the left-right direction.
  • the movable contact portion 15 can contact the front surface 9ea of the second slidable portion 9e at two points, the contact portion 15ab and the contact portion 15ac. Thereby, for example, between the contact portion 15ab and the front surface 9ea of the second slidable portion 9e due to the presence of foreign matter between the contact portion 15ab and the front surface 9ea of the second slidable portion 9e. Even when the electrical connection can not be made, the electrical connection can be made between the contact portion 15ac and the front surface 9ea of the second slidable portion 9e. Therefore, the reliability of the contact between the movable contact portion 15 and the front surface 9ea of the second slidable portion 9e can be improved. As a result, the reliability of the switch 1F can be improved.
  • the movable contact portion 15 has a configuration in which the second movable contact portion includes two contact portions.
  • the 1st movable contact part 15a was a structure provided with two contact part 15ab * 15ac, it is not restricted to this. That is, the first movable contact portion 15a may have three or more contact portions.
  • a switch is a switch including: an open / close contact portion; an operation member; and a movable contact portion which moves by being operated by the operation member and sandwiches the open / close contact portion.
  • the on / off contact portion is formed along the movement direction of the movable contact portion, and the second conduction is formed along the movement direction, and a surface including the first conduction region and the first insulation region.
  • the movable contact portion includes a first sliding portion sliding on the front surface, and a second sliding portion sliding on the rear surface.
  • arcing occurs on only one of the front surface and the back surface in both the opening operation and the closing operation of the switch.
  • arc discharge does not occur on one of the front surface and the back surface, so that it can be prevented from being consumed by arc discharge.
  • consumable powder generated by arc discharge can prevent conduction or insulation of the contacts.
  • expendable powder generated by arc discharge is generated on only one of the front surface or the back surface, the expendable powder is less likely to move to the opposite surface or the back surface. Therefore, it is possible to prevent the switch from becoming conduction failure and insulation failure. For this reason, compared with the conventional switch, while being able to open and close high electric current, it can maintain now a conduction
  • the position of the boundary between the first conduction region and the first insulation region, and the position of the boundary between the second conduction region and the second insulation region in the movement direction May be different.
  • the position where the first sliding portion slides on the surface is different from the position where the second sliding portion slides on the back surface. It may be a configuration.
  • a first conduction region and a first insulation region are formed on the surface in order from the initial position toward the direction in which the movable contact portion is operated by the operation member.
  • the second conductive region and the second insulating region are formed on the back surface in the direction in which the movable contact portion is moved by the operation member and moved from the initial position. Good.
  • the movable contact portion can be moved from the initial position by the operation member, whereby the switch can be switched from the closed state to the open state.
  • a first insulating region and a first conduction region are formed on the surface in order from the initial position toward the direction in which the movable contact portion is operated by the operation member.
  • the second insulating area and the second conduction area are formed on the back surface in the direction in which the movable contact portion is moved by the operation member and moved from the initial position. Good.
  • the switch can be switched from the open state to the closed state by moving the movable contact portion from the initial position by the operation member.
  • the movable contact portions are configured to contact the surface at a plurality of points separated from each other.
  • the movable contact portion may be configured to deviate from the surface at the initial position.
  • the insulation of the switch can be improved.
  • the on / off contact portion has a shape in which the distance between the front surface and the back surface decreases as the movable contact portion moves in the direction opposite to the direction of movement from the initial position. It is preferable that
  • the movable contact part when moving the movable contact part separated from the open / close contact part, the movable contact part can smoothly sandwich the open / close contact part.

Landscapes

  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Slide Switches (AREA)

Abstract

L'invention vise à réaliser un commutateur hautement durable et fiable. Dans ce commutateur, au fur et à mesure qu'une partie de point de contact mobile (13) se déplace, le moment auquel une partie de contact (13ab) arrive à la limite entre une surface avant (3ha) et une surface avant (9ea), et le moment auquel une partie de contact (13bb) arrive à la limite entre une surface arrière (3hb) et une surface arrière (9eb), diffèrent.
PCT/JP2017/037896 2016-12-27 2017-10-19 Commutateur WO2018123224A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-254107 2016-12-27
JP2016254107A JP6729360B2 (ja) 2016-12-27 2016-12-27 スイッチ

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Publication Number Publication Date
WO2018123224A1 true WO2018123224A1 (fr) 2018-07-05

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Publication number Priority date Publication date Assignee Title
CN117995570A (zh) * 2022-10-28 2024-05-07 温州泰钰新材料科技有限公司 电接触导体

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582925U (ja) * 1981-06-30 1983-01-10 パイオニア株式会社 スライド型スイツチ
JPS6035426U (ja) * 1983-08-18 1985-03-11 アルプス電気株式会社 摺動スイッチ
JPH02138824U (fr) * 1989-04-25 1990-11-20
JP2005019139A (ja) * 2003-06-25 2005-01-20 Matsushita Electric Works Ltd スイッチの接点構造
JP3956806B2 (ja) * 2002-08-27 2007-08-08 松下電工株式会社 押釦スイッチ
JP2008053153A (ja) * 2006-08-28 2008-03-06 Niles Co Ltd スイッチの接点構造
JP2014182956A (ja) * 2013-03-19 2014-09-29 Omron Corp スイッチ
JP2016170967A (ja) * 2015-03-12 2016-09-23 オムロン株式会社 スイッチ装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582925U (ja) * 1981-06-30 1983-01-10 パイオニア株式会社 スライド型スイツチ
JPS6035426U (ja) * 1983-08-18 1985-03-11 アルプス電気株式会社 摺動スイッチ
JPH02138824U (fr) * 1989-04-25 1990-11-20
JP3956806B2 (ja) * 2002-08-27 2007-08-08 松下電工株式会社 押釦スイッチ
JP2005019139A (ja) * 2003-06-25 2005-01-20 Matsushita Electric Works Ltd スイッチの接点構造
JP2008053153A (ja) * 2006-08-28 2008-03-06 Niles Co Ltd スイッチの接点構造
JP2014182956A (ja) * 2013-03-19 2014-09-29 Omron Corp スイッチ
JP2016170967A (ja) * 2015-03-12 2016-09-23 オムロン株式会社 スイッチ装置

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JP6729360B2 (ja) 2020-07-22

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