WO2015165144A1 - 开关结构 - Google Patents

开关结构 Download PDF

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Publication number
WO2015165144A1
WO2015165144A1 PCT/CN2014/079351 CN2014079351W WO2015165144A1 WO 2015165144 A1 WO2015165144 A1 WO 2015165144A1 CN 2014079351 W CN2014079351 W CN 2014079351W WO 2015165144 A1 WO2015165144 A1 WO 2015165144A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
wire
base
piece
shaped
Prior art date
Application number
PCT/CN2014/079351
Other languages
English (en)
French (fr)
Inventor
刘宏飞
郑立清
刘远方
叶伟杰
胡兰芳
Original Assignee
浙江正泰建筑电器有限公司
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 浙江正泰建筑电器有限公司 filed Critical 浙江正泰建筑电器有限公司
Publication of WO2015165144A1 publication Critical patent/WO2015165144A1/zh

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02Details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02Details
    • H01H23/08Bases; Stationary contacts mounted thereon

Definitions

  • the invention relates to the field of wall switches, in particular to a switch structure, in particular to a double control switch structure of a screwless terminal. Background technique
  • the moving contacts in the dual-control switch structure on the market are mostly in the form of left and right swings.
  • This structure makes the structure of the device more complicated, the space is difficult to reduce, and the assembly efficiency of the device is affected, especially the terminal is unthreaded.
  • Dual control switch for terminal block In addition, there are many types of screwless wiring switches that are currently seen on the market. Most of them have the problem that the non-threaded connection structure can only connect hard wires with an area of 2. 5imn 2 and below, and can not connect 4mm 2 hard wires.
  • a switch structure includes a button device 3, a movable contact support member 4, a contact conductive member 5, a spring piece 6, a wire retraction 7 and a base 8.
  • the contact conductive member 5 includes a conductive member 510 and Two static contact support members, the two static contact support members extend oppositely to two static contacts disposed correspondingly above and below, and the conductive member 510 is composed of two gate-shaped structures connected side by side and installed On one side of the base 8, the two fixed contact supports are of a gate-shaped structure and are mounted on the other side of the base 8, the conductive member 510 And a spring piece 6 is mounted in the door-shaped structure of the two static contact supports, and the spring piece 6 cooperates with the door-shaped structure to form a screwless terminal device for clamping the wire, and the movable contact support 4 Mounted in the pedestal 8 and supported by the fulcrum extending from the middle of the switch to the middle of the switch, the movable contact support 4 extends to the two stationary contacts with a movable contact 404
  • one side of the vertical portion of the gate-shaped structure of the conductive member 510 and the two fixed contact supports is a terminal piece, the terminal piece includes a bevel of the terminal piece, and the spring piece 6 includes a pressing line.
  • the portion 611 and the wire portion 612, the pressing portion 611 and the wire portion 612 are in contact with the terminal piece of the vertical portion of the door structure to form a limit for fixing the wire, and the spring piece 6, the terminal piece slope, and the base 8 side
  • the wall forms a triangular region of the fixed wire, wherein the angle between the bevel of the terminal strip and the side wall of the base 8 is an acute angle.
  • the spring piece 6 includes a card segment 601 that is connected end to end, a first arc segment 602, a connecting segment 603, a second arc segment 604, a crimping segment 605, a third arc segment 606, and a limit segment 607.
  • the three arc segments constitute an S-shaped spring piece 6, and the spring piece 6 is mounted in the spring piece mounting groove of the base 8 and is surrounded by the gate structure of the contact conductive component 5, the card line segment 601
  • the end portion is a wire portion 601a
  • the arc surface portion of the second arc segment 604 is divided into a crimping portion 604a, and the wire portion 601a and the crimping portion 604a are adjacent to the terminal piece 515 and adjacent to the wire in the base 8.
  • the hole 801 is disposed, and the limiting segment 607 is fixed on the side wall of the door structure to fix the limiting spring piece 6.
  • the wire pressing the wire portion 601a deforms the wire segment 601, and the wire segment 601 generates a reaction force.
  • the crimping portion 604a presses the wire core portion while the crimping portion 604a limits the wire.
  • the retracting line 7 is installed in a corresponding limiting slot in the base 8, and the retracting line 7 includes a retracting guiding ear 710 of the two wings of the retracting line 7, and the retracting guiding ear 710 includes an upper part and The retreating arc surface 711 of the side joint portion and the lower guiding slope surface 712 are in contact with the bottom surface of the card wire portion of the spring piece 6.
  • the retracting arc surface 711 pushes the card wire portion to make the card
  • the wire portion loses its force on the wire to pull out the wire to realize the wire-removing function
  • the guiding slope 712 is mounted on the inclined rail 805 in the base 8 to move the wire-removing member 7 obliquely upward along the guiding slope 712.
  • one side of the base 8 in which two fixed contact supports are mounted is provided with a contact protection wall 806, and the two fixed contact supports are mounted on both sides of the contact protection wall 806 and the base 8. Between the side walls, the two static contacts of the two fixed contact supports extend into the contact protection wall 806, and the contact protection wall 806 opens toward the conductive member 510 on the other side of the base 8. And half surrounds two static and moving contacts and separates the contacts from other mechanisms.
  • the two fixed contact supports comprise a first fixed contact support 520 and a second fixed contact support 530, and the first fixed contact support 520 along the gate structure
  • a U-shaped connecting piece 521 is disposed at the bottom of the vertical portion of one side and is inclined obliquely with respect to the first fixed-surface contact supporting member 520.
  • the end of the U-shaped connecting piece 521 is provided with a first way static contact 522.
  • the first static contact 522 extends from the opening portion of the contact protection wall 806 into the bottom of the contact protection wall 806 through the U-shaped connecting piece, and the second static contact support 530 passes through the second static contact.
  • the head platform 531 extends from top to bottom to place the second fixed contact 532 in the upper portion of the contact protection wall 806, and the movable contact 404 is disposed between the two stationary contacts.
  • the moving contact support member 4 includes a U-shaped sliding slot 401, a fixed wing 402 mounted on both sides of the U-shaped sliding slot 401, and a movable contact metal piece 403 extending toward the end of the U-shaped sliding slot 401.
  • a movable contact 404 mounted on the movable contact metal piece 403, the conductive member 510 supports the bottom of the movable contact support member 4, and the button device 3 is slidable and driven in the U-shaped chute 401
  • the contact supporting member 4 swings with the supporting portion of the conductive member 510 as a fulcrum, thereby moving the movable contact 404 to move up and down, and the fixed wing 402 is mounted on the fixed wing limiting slot 809 on both sides of the central portion of the base 8 to limit the movement.
  • the side of the vertical portion of the gate-shaped portion of the conductive member 510 is a terminal piece 515, and the bottom of the other side is connected and extends to the middle of the switch to extend the horizontal connecting piece 514.
  • the edge of the end of the horizontal connecting piece 514 is vertically disposed.
  • a fulcrum fulcrum bar 513, the side of the fulcrum bar 513 is vertically connected to the side of the connecting piece 514 and the other side is a circular arc surface 511, and the circular arc surface 511 supports the movable contact support 4.
  • the base 8 is provided with a positioning rib 803, and the positioning rib 803 is a protrusion extending from the mounting hole 801 toward the side wall of the adjacent base 8, the positioning rib 803 and the other side base
  • the 8 side walls constitute a terminal piece limiting slot 802, and the terminal piece is mounted in the terminal piece limiting slot 802.
  • the switch structure of the invention realizes the form of the double-control switch moving contact swinging up and down by the static contact assembly composed of the conductive member and the two static contact support members, and the switch structure of the form is simple, and the device has a small volume. Low, stable on-off performance.
  • the terminal piece bevel and the base wall to form a triangular wire clamping method, the unthreaded terminal can accept a cross-sectional area of 1. 5 mm 2 — 4 mm 2 range of hard wire of any specification, lifting
  • the wiring capability of the switch, and the S-shaped spring piece is less affected by the deformation when the wire is repeatedly inserted and removed.
  • the retracting line retracting trajectory moves obliquely upward, which makes the retracting process safe and convenient.
  • FIG. 1 is a schematic exploded view of a switch structure of the present invention
  • FIG. 2 is a schematic structural view of a movable contact support member of the present invention
  • FIG. 3 is a schematic structural view of a conductive member of the present invention.
  • FIG. 4 is a schematic structural view of a first fixed contact support member of the present invention.
  • Figure 5 is a schematic structural view of a second fixed contact support member of the present invention.
  • Figure 6 is a cross-sectional view of a portion of the contact of the present invention.
  • Figure 7 is a schematic view showing the front structure of the retractor of the present invention.
  • Figure 8 is a schematic view showing the structure of the back side of the retractor of the present invention.
  • Figure 9 is a front view showing another embodiment of the retraction of the present invention.
  • Figure 10 is a schematic rear view showing another embodiment of the retraction of the present invention.
  • Figure 11 is a schematic view showing the internal structure of the base of the present invention.
  • Figure 12 is a cross-sectional view of the screwless terminal of the present invention.
  • Figure 13 is a cross-sectional view of the retraction line of the present invention.
  • Figure 14 is a schematic view showing the structure of the pressure plate of the present invention.
  • Figure 15 is a schematic view showing the structure of the back surface of the base of the present invention.
  • Figure 16 is a schematic view showing the structure of another embodiment of the spring piece of the present invention.
  • a switch structure of the present invention includes a cover plate 1, a pressure plate 2, a toggle device 3, a movable contact support member 4, a contact conductive member 5, a spring piece 6, a retraction 7 and a base.
  • Block 8 is used for mounting and limiting the components of the switch structure, and the cover plate 1 and the pressure plate 2 are used to limit and fix other devices.
  • the button device 3 includes a T-shaped button 301, a connecting spring 302 and a jack 303.
  • the jack 303 is in contact with the moving contact support 4, so that the T-shaped button is driven by the swing.
  • the contact support 4 moves.
  • the contact conductive component 5 includes a conductive member 510 and two static contact supports, and the two fixed contact supports extend oppositely to two static contacts disposed correspondingly above and below, the conductive member
  • the 510 is composed of two gate-shaped structures arranged side by side and mounted on one side of the base 8.
  • the two fixed contact supports are gate-shaped and mounted on the other side of the base 8, the conductive A spring piece 6 is mounted in the door-shaped structure of the piece 510 and the two stationary contact supports.
  • the moving contact support 4 is mounted in the base 8 and supported by the conductive member 510.
  • the contact portion of the movable contact support 4 is disposed between two oppositely disposed stationary contacts, which can pass The upper and lower swings are electrically connected to the two stationary contacts.
  • the spring reed 6 is mounted in a corresponding mounting groove in the base 8 and cooperates with the fixed contact support assembly 5 to form a screwless terminal to clamp the wire core in the wire.
  • the retracting line 7 is installed in a corresponding mounting groove in the base 8, and the pushing retracting line 7 can open the clamping portion of the corresponding spring piece 6 on both sides, thereby pulling out the wire to realize the retracting function.
  • the movable contact support member 4 of the present invention includes a U-shaped chute 401, a fixed wing 402 disposed on both sides of the U-shaped chute 401, and a U-shaped slide.
  • the slot 401 is a movable contact metal piece 403 extending laterally and a movable contact 404 mounted on the movable contact metal piece 403.
  • the conductive member 510 supports the bottom of the movable contact holder 4, the head of the button device 3 is freely slidable in the U-shaped chute 401, and the sliding process can drive the contact support member 4 to support the conductive member 510. Part of the fulcrum swings, thereby moving the movable contact 404 up and down.
  • the fixed wing 402 is mounted in a limiting slot in the base 8 to prevent the moving contact support 4 from shifting during the swinging process.
  • the two-type structure static contact support member is mounted on one side of the switch, and the upper and lower swing forms of the movable contact 404 are more compact than the left-right swing form, which can save space for the switch structure and shorten the distance at which the contact swings.
  • the design of the U-shaped chute 401, The sliding of the toggle device 3 is made smoother, thereby improving the stability of the switching device. As shown in FIG.
  • the contact conductive component 5 of the present invention includes a conductive member 510 and two static contact supports
  • the two fixed contact supports include One way of the stationary contact support 520 and the second fixed contact support 530.
  • the conductive member 510 and the two fixed contact supports are mounted in the base 8.
  • the gate-shaped structure of the first fixed contact support 520 and the second fixed contact support 530 extend from the upper and lower relative positions.
  • the two static contacts, the moving contact 404 is disposed between the two static contacts, and is electrically connected to the static contact by the up and down swing to realize the switching of the circuit.
  • the conductive member 510 is composed of two gate-shaped structures arranged side by side, the spring-shaped piece 6 is mounted in the gate-shaped structure, and one end of the horizontal portion of the gate-shaped portion is passed through the metal connecting piece.
  • the 512 is connected and the two sides of the connecting end are provided with notches.
  • the bottom side of the vertical part of the two sides of the door is connected to the bottom of the switch and the horizontal connecting piece 514 extends toward the middle of the switch.
  • the edge of the end of the horizontal connecting piece 514 is vertically disposed.
  • the side of the fulcrum bar 513 is perpendicularly connected to the edge of the connecting piece 514 and the other side is a circular arc surface 511, and the circular arc surface 511 supports the lowest point of the bottom of the U-shaped chute 401.
  • the fulcrum fulcrum has a circular arc shape to make the bottom of the U-shaped chute 401 swing more smoothly on the surface thereof, thereby making the moving contact swing more stable. It prevents arcing when switching the position of the moving contact.
  • the other side of the vertical portion of the door-shaped portion is a terminal piece 515.
  • the terminal piece 515 includes a terminal piece inclined surface 515a, wherein the terminal piece inclined surface 515a and the wire end of the spring piece 6 are correspondingly clamped to the wire to form a quick wiring. Screwless terminal block.
  • the terminal strip slope 515a can form a triangular area together with the sidewall of the base 8 and the card end of the spring piece 6, wherein the angle between the terminal strip slope 515a and the side wall of the base 8 is an acute angle, the triangle
  • the area can be clamped and fixed with a cross-sectional area of 1.5 mm 2 - 4 mm 2 in any size to prevent the wire from slipping out, effectively reducing the deformation of the spring piece to extend the service life of the spring piece.
  • the gaps on both sides of the joint between the metal connecting piece 512 and the terminal piece 515 can make the wire inserted longer.
  • the first static contact support member 520 shown in FIG. 4 has a gate-shaped structure, and one side of the vertical portion on both sides of the gate-shaped structure is a terminal piece 525 having the same structure as the terminal piece 515 of the conductive member 510.
  • a U-shaped connecting piece 521 is disposed at a bottom of the other side of the metal piece 524 of the vertical portion, and is disposed at a position obliquely inclined with respect to the first fixed-surface contact supporting member 520.
  • the U-shaped connecting piece 521 is provided with a first static touch at the end. Head 522.
  • a boss 523 is provided on a horizontal portion of the door-shaped structure near the terminal piece.
  • the second static contact support member 530 as shown in FIG.
  • the gate-shaped structure 5 has a gate-shaped structure, and one side of the vertical portion on both sides of the gate-shaped structure is a terminal piece 535 having the same structure as the terminal piece 515 of the conductive member 510.
  • the other side is a metal piece 534, and the horizontal portion of the door-shaped structure is disposed on the side of the terminal piece with the same boss 533 as the first fixed-surface contact support 520, and the horizontal portion extends laterally from the other side.
  • the second static contact platform 531 is provided with a second static contact 532 disposed opposite to the first static contact 522.
  • the first contact support member 520 and the second contact support member 530 are mounted on one side of the base 8, and a spring piece 6 for engaging the fixed wire is mounted in the gate-shaped structure.
  • the first static contact 522 and the second static contact 532 are disposed opposite each other, and the movable contact 404 can swing up and down between the gaps between the two static contacts to form a double in the form of up and down swing.
  • the control switch structure the design of the contact action mode makes the structure simple, the overall volume of the switch is reduced and the assembly speed is fast.
  • the switch structure is such that the incoming end and the outgoing end of the dual control switch device are respectively disposed on both sides of the switch, and the setting of the switch device in the overall circuit is convenient for wiring.
  • the button device 3 includes a T-shaped button 301, a connecting spring 302 and a jack 303, and the vertical portion of the T-shaped button 301
  • the connecting spring 302 and the jack 303 are mounted in the cylindrical cavity and pass through the connecting spring 302 and the knob which are fitted over the tail of the jack 303. 301 elastic connection.
  • the head of the ejector pin 303 is in contact with the U-shaped chute 401 of the movable contact support member 4, and the U-shaped chute bottom portion 401 is supported by the fulcrum bar 513-end circular arc surface 511 as a fulcrum for supporting the movement of the movable contact support member 4.
  • the swinging of the T-shaped button drives the elastically connected jack 303 to swing synchronously in the U-shaped chute 401, and the swinging of the jack 303 drives the movable contact 404 to move up and down.
  • the movable contact 404 has two final states.
  • the first type is that the movable contact 404 and the first fixed contact 522 underneath are in contact with each other to form an electrical connection
  • the second type is that the movable contact 404 and the second fixed contact 532 above it are in contact with each other to form an electrical connection.
  • Shown in Figure 6 is the second state of the moving contact 404.
  • the moving contact 404 is oscillated up and down in contact with the static contact to make the device simple in structure and reliable in the on-off performance.
  • the U-shaped chute 401 is designed to smoothly and stably slide the jack 303 in the chute, so that the operation switch can be obtained. Better feel.
  • the retracting line 7 is installed in a corresponding limiting slot in the base 8, and the retracting line 7 includes a retracting guide of the two wings of the retracting line 7.
  • the retracting guide ear 710 includes an upper connecting slope 714, a lower guiding slope 712, a lateral straight surface 713, and a connecting straight surface 713 and a connecting inclined surface 714.
  • the curved surface 711 is in contact with the bottom surface of the wire portion of the spring piece 6.
  • the wire returning surface 711 pushes the wire portion to make the wire end lose the force on the wire, thereby pulling out
  • the wire realizes the wire-removing function
  • the guiding slope 712 is mounted on the inclined rail 805 in the base 8.
  • the pushing-out line 7 is moved, the wire-removing member 7 is moved obliquely upward along the guiding slope 712, and the line is retracted. 7
  • the movement path of the inclined surface piece 6 is more in line with the inclined surface of the wire portion of the spring piece 6, so that the process of retracting the spring piece 6 to retract the wire 6 is more moderate, thereby effectively protecting the spring piece 6 from being repeatedly retracted.
  • the deformation caused by the wire process makes the spring piece and the screwless terminal device more safe and stable.
  • the base 8 of the present invention includes a wiring hole 801, a terminal piece limiting groove 802, a positioning rib 803, a spring piece mounting groove 804, a retracting bevel guide 805, and a contact.
  • the bottom corners of the base 8 are provided with wiring holes 801 for wires to enter and exit, and each of the wire holes 801 is adjacent to two vertically connected bases 8 of the base 8.
  • the positioning rib 803 is a protrusion extending from the mounting hole 801 to the side wall of the adjacent base 8 for fixing in the triangular area formed by the spring piece 6, the terminal piece slope 515a and the side wall of the base 8.
  • the wire is further directed to the limit.
  • the positioning rib 803 and the side wall of the other side base 8 constitute a terminal piece limiting groove 802, and the terminal piece 515 is installed in the terminal piece limiting groove 802.
  • the spring piece mounting groove 804 is disposed on the other side of the mounting hole 801 with respect to the terminal piece limiting groove 802.
  • the shape of the spring piece mounting groove 804 is matched with the wire portion of the spring piece 6 for limiting the mounting spring piece 6 .
  • the retracting sub-cavity 807 is located at an intermediate position on both sides of the bottom of the base 8 for mounting the retracting line 7, and the retracting sub-cavity 807 has a retracting bevel on the side of the retracting sub-cavity 807 with the guiding inclined surface 712 of the retracting line 7
  • the guide rail 805, the retracting wire 7 is moved obliquely upward along the inclined rail 805 by the guiding inclined surface 712, and the moving track can save labor and protect the spring piece 6 when the retracting wire 7 is used.
  • the contact protection wall 806 is disposed on the side of the base 8 , and the side is further provided with a first static contact support 520 and a second between the contact protection wall 806 and the side walls of the base 8 on both sides.
  • the two-way static contact support member 530 is mounted on the other side of the position of the base 8 where the contact protection wall 806 is located with respect to the contact protection wall 806.
  • the contact protection wall 806 is open toward the conductive member 510 and partially surrounds the two.
  • a static contact and a partition wall of the movable contact, two static contacts of the two fixed contact supports extend into the contact protection wall 806, and the first fixed contact support 520 passes
  • the U-shaped connecting piece 521 extends the first fixed contact 522 from the opening portion of the contact protection wall 806 into the bottom of the contact protection wall 806, and the second fixed contact support 530 passes through the second fixed contact
  • the platform 531 extends from the top to the bottom and the second road
  • the stationary contact 532 is placed in the upper portion of the contact protection wall 806 with the movable contact 404 placed between the two stationary contacts.
  • the contact protection wall 806 is designed to prevent the vibration, the arc, and the like from being affected by other mechanisms during the switching of the movable contact 404 between the two fixed contacts, and effectively perform the contact action portion with other mechanisms. Isolation protection.
  • the first static contact support 520 extends into the contact protection wall 806 through the U-shaped connecting piece 521, does not need to be grooved in the contact protection wall 806, and can assist the installation support, and is convenient to install.
  • the fixed wing limiting slot 809 is used to limit the fixed wing 402 on the movable contact support 4 to prevent the movement of the movable contact support 4 from swinging on the fulcrum bar 513.
  • the connecting piece 514 and the fulcrum bar 513 extended by the conductive member 510 are installed in the groove 810 between the two fixed wing limiting grooves 809.
  • a spring piece 6 is mounted in the gate structure of the contact conductive component 5, and the spring piece 6 includes a crimping portion 611 and a wire portion. 612, the pressing portion 611 and the wire portion 612 are in contact with the terminal piece 515 of the vertical portion of the door structure, and the back surface of the spring piece 6 is directly abutted against the other side of the vertical portion of the door structure, and the spring piece 6 passes.
  • the bevel and the arcuate mounting limit of the bottom of the spring piece mounting groove 804 installed in the base 8 are.
  • a wiring hole 801 is provided in the base 8 below the terminal piece 515 in contact with the crimping portion 611 and the wire portion 612.
  • the wire is inserted into the screwless terminal device in the direction of the arrow in Fig. 12, and the card wire portion 612 is inserted. After the pressing force of the wire is applied, a reaction force is applied to the wire, and the wire is caught on the terminal strip slope 515a of the terminal piece 515, and the wire pressing portion 611 is fixed to the wire, and the wire is fixed to the spring piece 6.
  • the triangular shape of the terminal strip slope 515a and the side wall of the base 8 can be adapted to the cross-sectional area of 1.5 mm 2 -4 mm 2 and the hard wire of any size can be clamped and fixed to form a reliable connection. Screwless terminal block.
  • the notch of the horizontal portion of the gate of the conductive member 510 and the boss 523 of the horizontal portion of the gate of the first fixed contact support 520 and the second fixed contact support 530 can make the wire inserted into the screwless terminal deeper. , improve the stability of the wiring.
  • the bottom of the retracting guide ear 710 of the two wings of the retracting line 7 is a guiding bevel 712
  • the guiding bevel is mounted on the inclined rail 805 in the base 8
  • the guiding bevel 712 moves along the inclined rail 805, so that the retracting line 7 moves obliquely upward, and the retracting curved surface 711 above the retracting guiding ear is along the spring during the retracting process.
  • the card 6 card portion 612 slopes the card line portion 612 from the bottom to the top, so that the card wire portion no longer has a force on the wire, and finally the wire is pulled out in the direction of the arrow in FIG.
  • Treat during the line retreat The manner of the oblique movement of the sub-segment 7 is more in line with the characteristic of the inclined surface of the card line portion 612, thereby pushing the retracting line more labor-saving, and the process of pushing the spring piece 6 along the inclined surface of the card-line portion 612 effectively protects the spring piece 6, so that The spring piece 6 does not undergo severe deformation due to multiple insertion and removal of the wire.
  • the pressure plate 2 and the base 8 of the present invention are provided with card members 201 at both ends of the planar side walls 202 on both sides of the pressure plate 2, and the bases 8 are disposed at the edges of the back sides of the base 8
  • the card notch 808 corresponding to the card member 201 when all the device parts in the base 8 are in place, the card member 201 is snapped into the corresponding card notch 808, and the platen 1 and the base 8 are fixed and installed.
  • the fixing method is simple and the assembly speed is improved.
  • the spring piece 6 as shown in Fig. 14 includes a card line segment 601 which is sequentially connected end to end, a first arc segment 602, a connecting segment 603, and a second arc. Segment 604, line segment 605, third arc segment 606, and limit segment 607.
  • the spring piece 6 is mounted in the spring piece mounting groove in the base 8 and is surrounded by the gate structure of the contact conductive component 5, and the end of the wire segment 601 is a wire portion 601a, and the second arc segment 604
  • the arcuate portion is divided into a crimping portion 604a, and the latching portion 601a and the crimping portion 604a face the wiring hole 801 in the base 8 adjacent to the spring tab limiting slot, and are opposite to the terminal strip on the terminal strip 515.
  • the slope 515a is provided.
  • the limiting segment 607 abuts against the side wall of the door structure for fixing the limiting spring piece 6.
  • the card wire portion 601a deforms the wire segment 601, and the wire segment 601 generates a reaction force to cause the wire portion 604a to press the wire core portion, and the wire portion 604a performs the wire.
  • the limit is fixed so that the wire is fixed by the spring piece 6 and the terminal piece 515, so that the wire is electrically connected to the unthreaded terminal.
  • the S-shaped spring piece formed by the wire segment 601, the first arc segment 602, the connecting segment 603, the second arc segment 604, the crimping segment 605 and the third arc segment 606 has a larger spring leaf than the conventional spring plate structure.
  • the deformation-producing segment occupies the proportion of the total length of the spring piece, so that the deformation and recovery ability of the spring piece is enhanced, and the spring piece 6 can be fixed in a cross-sectional area of 1. 5 mm 2 -4 mm 2 in a hard wire of any size, and the recovery ability is strong.
  • the S-shaped spring piece 6 can withstand multiple insertion and removal processes of large-diameter wires without deformation effects. Further, the terminal piece having the terminal piece slope 515a and the side wall of the base 8 are matched to improve the reliability and the service life of the switch.
  • the wire segment 601, the first arc segment 602, the connecting segment 603, the second arc segment 604, the crimping segment 605, and the third arc segment 606 are still effective.
  • plastic deformation does not occur and the wiring capability of the switch is improved.

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Abstract

开关结构,包括钮子装置(3)、动触头支撑件(4)、触头导电组件(5)、弹簧片(6)、退线子(7)及基座(8),触头导电组件(5)包括导电件(510)和两个静触头支撑件,两个静触头支撑件相向延伸出上下相对应设置的两个静触头,导电件(510)由两个门字型结构并排连接组成并安装在基座(8)的一侧,两个静触头支撑件均为门字型结构并安装在基座(8)另一侧,导电件(510)和两个静触头支撑件的门字型结构内安装有弹簧片(6),由弹簧片与门字型结构配合形成夹持导线的无螺纹接线端子装置。该开关结构简单、安装速度快、工作性能稳定、安全可靠的开关结构。

Description

开关结构 技术领域
本发明涉及墙壁开关领域, 具体是一种开关结构, 特别是一种无螺纹接线 端子的双控开关结构。 背景技术
目前市场上的双控开关结构中的动触头多为左右摆动的形式, 此结构使得 装置结构较为复杂, 空间难以缩小且对装置的组装效率带来一定的影响, 尤其 是接线端子为无螺纹接线端子的双控开关。 此外, 目前市场上所见到的无螺纹 接线开关的结构繁多, 大多存在无螺纹连接结构只能接截面积为 2. 5imn2及以下 的硬导线, 不能接 4mm2 的硬导线的问题, 假如硬将现有的无螺纹接线开关连接 4mm2 的硬导线使用, 即使能接上, 则其接线端子的电接触性能与硬导线的载流 能力严重失衡(如 4mm2 的铜芯硬导线安全载流值为 28A, 而接线端子的实际的 电接触的安全、 稳定的导电能力达不到 28A ), 并在最多 5次接线操作后, 其内 的弹簧片的塑性变形严重, 导致温升、 虚接等安全隐患, 轻者导致载流能力下 降, 重者因电接触性能失效造成产品报废。 发明内容
本发明的目的在于克服现有技术的缺陷,提供一种结构简单、安装速度快、 工作性能稳定、 安全可靠的开关结构。 为实现上述目的, 本发明釆用了如下技术方案:
一种开关结构, 包括钮子装置 3、 动触头支撑件 4、 触头导电组件 5、 弹簧 片 6、 退线子 7及基座 8, 所述的触头导电组件 5包括导电件 510和两个静触 头支撑件, 所述的两个静触头支撑件相向延伸出上下相对应设置的两个静触头, 所述的导电件 510由两个门字型结构并排连接组成并安装在基座 8的一侧, 所 述的两个静触头支撑件均为门字型结构并安装在基座 8另一侧,所述导电件 510 和两个静触头支撑件的门字型结构内安装有弹簧片 6, 由弹簧片 6与门字型结 构配合形成夹持导线的无螺纹接线端子装置,所述的动触头支撑件 4 安装在基 座 8内并被导电件 510向开关中部延伸出的支点所支撑, 所述的动触头支撑件 4向两个静触头方向延伸设有动触头 404,所述的钮子装置 3与动触头支撑件 4 相接触, 通过摆动钮子装置 3使动触头支撑件 4以导电件 510向开关中部延伸 出的支点为支撑摆动, 从而驱动动触头 404在两个相对应设置的静触头之间上 下摆动, 可分别与两个静触头形成电连接。
进一步, 所述的导电件 510和两个静触头支撑件的门字型结构垂直部分的 其中一侧是端子片, 所述的端子片包括端子片斜面, 所述的弹簧片 6包括压线 部分 611和卡线部分 612, 所述的压线部分 611和卡线部分 612与门型结构垂 直部分的端子片接触对导线形成限位固定, 由弹簧片 6、 端子片斜面以及基座 8侧壁形成固定导线的三角形区域, 其中端子片斜面与基座 8侧壁之间的夹角 为锐角。
进一步,所述的弹簧片 6包括依次首尾相接的卡线片段 601、第一弧段 602、 连接片段 603、 第二弧段 604、 压线片段 605、 第三弧段 606及限位片段 607, 三个弧段构成了 S型的弹簧片 6, 弹簧片 6安装在基座 8的弹簧片安装槽内且 被触头导电组件 5的门型结构包围限位, 所述的卡线片段 601端部为卡线部 601a , 第二弧段 604的弧面部分为压线部 604a, 所述的卡线部 601a和压线部 604a相对于端子片 515并且相邻于基座 8内的接线孔 801设置,所述的限位片 段 607贴靠在门型结构侧壁上固定限位弹簧片 6,导线挤压卡线部 601a使卡线 片段 601发生变形, 卡线片段 601产生反作用力使压线部 604a挤压导线线芯 部分, 同时压线部 604a对导线进行限位固定 。
进一步, 所述的退线子 7安装在基座 8内相应的限位槽中, 退线子 7包括 退线子 7两翼的退线导向耳 710, 所述的退线导向耳 710包括上部与侧面连接 处的退线弧面 711及下部的导向斜面 712, 所述的退线弧面 711与弹簧片 6的 卡线部底面相接触, 退线时退线弧面 711推动卡线部使卡线部对导线失去作用 力从而拔出导线实现退线功能, 所述的导向斜面 712安装在基座 8内的斜面导 轨 805上, 使退线子 7沿导向斜面 712向斜上方运动。 进一步,基座 8内安装有两个静触头支撑件的一侧设置有触点保护壁 806, 所述的两个静触头支撑件安装在触点保护壁 806与基座 8两侧的侧壁之间, 所 述的两个静触头支撑件的两个静触头延伸到触点保护壁 806内, 所述的触点保 护壁 806开口朝向基座 8另一侧的导电件 510并半包围两个静触头及动触头并 将触头与其他机构分隔。
进一步, 所述的两个静触头支撑件包括第一路静触头支撑件 520和第二路 静触头支撑件 530, 所述的第一路静触头支撑件 520沿门字型结构一侧的垂直 部分底部延伸有一相对第一路静触头支撑件 520横向倾斜放置的 U型连接片 521 , 所述的 U型连接片 521的端部设有第一路静触头 522, 所述的第一路静触 头 522通过 U型连接片从触点保护壁 806开口部分延伸进触点保护壁 806内底 部, 所述的第二路静触头支撑件 530通过第二路静触头平台 531由上往下延伸 将第二路静触头 532放置在触点保护壁 806内的上部, 两个静触头之间设有动 触头 404。
进一步, 所述的钮子装置 3包括 T型结构的钮子 301、 连接弹簧 302及顶 杆 303, 所述的 T型结构的钮子 301垂直部分有一用于安装连接弹簧 302和顶 杆 303的圓柱型空腔, 所述的连接弹簧 302和顶杆 303安装在圓柱形空腔内, 并通过套在顶杆 303尾部的连接弹簧 302与钮子 301弹性连接, 顶杆 303的端 部与动触头支撑件 4接触。
进一步, 所述的动触头支撑件 4包括 U型滑槽 401、 安装在 U型滑槽 401 两侧的固定翼 402、 向 U型滑槽 401—端延伸出的动触头金属片 403及安装在 动触头金属片 403上的动触头 404, 所述的导电件 510支撑动触头支持件 4底 部, 所述的钮子装置 3的在 U型滑槽 401内可自由滑动并驱动触头支撑件 4以 导电件 510的支撑部分为支点摆动, 从而带动动触头 404上下移动, 所述的固 定翼 402安装在基座 8中部两侧的固定翼限位槽 809内限位动触头支撑件 4。
进一步, 所述导电件 510的门字型垂直部分一侧为端子片 515, 另一侧底 部连接且向开关中部延伸出水平连接片 514, 所述的水平连接片 514末端的边 沿垂直设置有呈一字型的支点横杠 513,所述的支点横杠 513—侧与连接片 514 边沿垂直连接另一侧为圓弧面 511, 所述的圓弧面 511支撑动触头支撑件 4。 进一步, 所述的基座 8内设有定位筋 803, 所述的定位筋 803是由安装孔 801向相邻的基座 8侧壁延伸出的凸起, 定位筋 803与另一侧基座 8侧壁构成 端子片限位槽 802, 所述的端子片安装在端子片限位槽 802内。
本发明的一种开关结构通过由导电件及两个静触头支撑件组成的静触头组 件, 实现双控开关动触头上下摆动的形式, 此种形式的开关结构简单, 装置体 积小高度低, 通断性能稳定。 同时, 通过 S 型的弹簧片, 端子片斜面和基座壁 构成的三角形导线夹持方式, 使无螺纹接线端子可接受横截面积 1. 5 mm2— 4 mm 2范围任意规格硬导线, 提升了开关的接线能力, 且 S型的弹簧片在导线多次插 拔的情况下受变形影响小。 此外, 通过退线子导向斜面, 实现退线子退线轨迹 沿斜上方运动, 使退线过程安全方便。 附图说明
图 1是本发明开关结构的分解结构示意图;
图 2是本发明的动触头支撑件结构示意图;
图 3 是本发明的导电件结构示意图;
图 4是本发明的第一路静触头支撑件结构示意图;
图 5是本发明的第二路静触头支撑件结构示意图;
图 6是本发明的触头部分剖面图;
图 7是本发明的退线子正面结构示意图;
图 8是本发明的退线子背面结构示意图;
图 9是本发明的退线子另一实施例正面结构示意图;
图 10是本发明的退线子另一实施例背面结构示意图;
图 11是本发明的基座内部结构示意图;
图 12是本发明的无螺纹接线端子剖面图;
图 13是本发明的退线子剖面图;
图 14是本发明的压板结构示意图;
图 15是本发明的基座背面结构示意图;
图 16是本发明的弹簧片另一实施例结构示意图;
图 17是本发明的弹簧片另一实施例侧面示意图。 具体实施方式
以下结合附图 1 至 17给出本发明的实施例, 进一步说明本发明的一种开 关结构具体实施方式。 本发明的一种开关结构不限于以下实施例的描述。
如图 1所示, 本发明的一种开关结构包括,盖板 1、压板 2、钮子装置 3、 动触头支撑件 4、 触头导电组件 5、 弹簧片 6、 退线子 7及基座 8。 所述的基座 8用于安装和限位开关结构的组件, 并配合盖板 1及压板 2对其他装置进行限 位固定。所述的钮子装置 3包括 T型结构的钮子 301、连接弹簧 302及顶杆 303, 所述的顶杆 303与动触头支撑件 4相接触, 从而使 T型钮子的摆动驱动动触头 支撑件 4运动。 所述的触头导电组件 5包括导电件 510和两个静触头支撑件, 所述的两个静触头支撑件相向延伸出上下相对应设置的两个静触头, 所述的导 电件 510由两个门字型结构并排连接组成并安装在基座 8的一侧, 所述的两个 静触头支撑件均为门字型结构并安装在基座 8另一侧, 所述导电件 510和两个 静触头支撑件的门字型结构内安装有弹簧片 6。 所述的动触头支撑件 4安装在 基座 8内并通过导电件 510对其进行支撑, 动触头支撑件 4的触头部分设置在 两个相对设置的静触头之间, 可通过上下摆动与两个静触头电连接。 所述的弹 簧片 6安装在基座 8内相应的安装槽中, 并与静触头支撑件组件 5配合形成无 螺纹接线端子对导线中的线芯夹持固定。 所述的退线子 7安装在基座 8内相应 的安装槽中, 推动退线子 7可顶开两侧与其对应的弹簧片 6的夹线部分, 从而 拔出导线实现退线功能。
如图 2所示, 本发明的动触头支撑件 4, 所述的动触头支撑件 4包括 U型 滑槽 401、 设在 U型滑槽 401两侧的固定翼 402、 向 U型滑槽 401—侧延伸出 的动触头金属片 403及安装在动触头金属片 403上的动触头 404。 所述的导电 件 510支撑动触头支持件 4底部, 所述钮子装置 3的头部在 U型滑槽 401内可 自由滑动,滑动过程可驱动触头支撑件 4以导电件 510的支撑部分为支点摆动, 从而带动动触头 404上下移动。所述的固定翼 402安装在基座 8内的限位槽中, 防止动触头支撑件 4在摆动的过程中产生偏移。 两个门型结构的静触头支撑件 安装在开关的一侧, 动触头 404的上下摆动形式与左右摆动形式相比结构更加 紧凑,可节省开关结构的空间,缩短了触头摆动的距离, U型滑槽 401的设计, 使钮子装置 3的滑动更加平稳, 从而提高了开关装置通断的稳定性。 如图 3-5所示, 本发明的触头导电组件 5, 所述的触头导电组件 5包括导 电件 510和两个静触头支撑件, 所述的两个静触头支撑件包括第一路静触头支 撑件 520和第二路静触头支撑件 530。 导电件 510和两个静触头支撑件安装在 基座 8内, 所述的第一路静触头支撑件 520和第二路静触头支撑件 530的门字 型结构延伸出上下相对设置的两个静触点, 所述的动触头 404设置在两个静触 点之间, 通过上下摆动与静触点电连接, 实现电路的切换。
如图 3所示的导电件 510,所述的导电件 510由两个门字型结构并排组成, 所述的门字型结构内安装弹簧片 6,门字型水平部分的一端通过金属连接片 512 连接且连接端的两侧设有缺口, 门字型两侧垂直部分的其中一侧底部连接且向 开关中部延伸出水平连接片 514, 所述的水平连接片 514末端的边沿垂直设置 有呈一字型的支点横杠 513, 所述的支点横杠 513—侧与连接片 514边沿垂直 连接另一侧为圓弧面 511, 所述的圓弧面 511支撑 U型滑槽 401底部最低点的 位置, 作为动触头支撑件 4的翘动支点, 所述的翘动支点为圓弧形设计可使 U 型滑槽 401底部在其表面摆动更为平稳, 从而使动触头摆动更为稳定, 可防止 切换动触头位置时产生的电弧。 门字型垂直部分的另一侧为端子片 515, 所述 的端子片 515包括端子片斜面 515a, 其中端子片斜面 515a与弹簧片 6的卡线 端对应配合夹持住导线, 形成可快速接线的无螺纹接线端子。 同时端子片斜面 515a可与基座 8的侧壁及弹簧片 6的卡线端共同构成一个三角区域,其中端子 片斜面 515a与基座 8侧壁之间的夹角为锐角, 所述的三角形区域可将横截面 积 1. 5 mm2— 4 mm2范围任意规格硬导线夹紧固定, 防止导线滑动脱出, 有效减 少了弹簧片的变形量以延长弹簧片的使用寿命。 所述的金属连接片 512与端子 片 515连接处两侧的缺口可以使导线插入的更长。
如图 4所示的第一路静触头支撑件 520呈门字型结构, 所述的门字型结构 两侧的垂直部分一侧是与导电件 510的端子片 515结构相同的端子片 525, 垂 直部分的另一侧金属片 524底部延伸有一相对第一路静触头支撑件 520横向倾 斜放置的 U型连接片 521,所述的 U型连接片 521端部设置有第一路静触头 522。 门字型结构水平部分靠近端子片一侧设置有凸台 523。 如图 5所述的第二路静触头支撑件 530呈门字型结构, 所述的门字型结构 两侧的垂直部分一侧是与导电件 510的端子片 515结构相同的端子片 535, 另 一侧是金属片 534, 且门字型结构水平部分靠近端子片一侧设置有与第一路静 触头支撑件 520相同的凸台 533, 水平部分另一侧向侧方延伸出第二路静触头 平台 531, 所述的第二路静触头平台 531上设置有与第一路静触头 522上下相 对设置的第二路静触头 532。 第一路触头支撑件 520与第二路触头支撑件 530 安装在基座 8内一侧,门字型结构内安装有用于配合夹持固定导线的弹簧片 6。 所述的第一路静触头 522与第二路静触头 532—下一上相对设置, 动触头 404 在两个静触头之间的空隙间可上下摆动, 形成上下摆动形式的双控开关结构, 此种触头动作方式的设计使结构简单,开关整体体积缩小且组装速度快。此外, 此种开关结构使得双控开关装置的进线端和出线端分别设置于开关两侧, 对开 关装置在整体线路中的设置起到方便布线的作用。
如图 6所示, 发明的触头部分截面结构, 所述的钮子装置 3包括 T型结构 的钮子 301、 连接弹簧 302及顶杆 303 , 所述的 T型结构的钮子 301垂直部分 有一用于安装连接弹簧 302和顶杆 303的圓柱型空腔, 所述的连接弹簧 302和 顶杆 303安装在圓柱形空腔内, 并通过套在顶杆 303尾部的连接弹簧 302与钮 子 301弹性连接。 顶杆 303头部与动触头支撑件 4的 U型滑槽 401相接触, U 型滑槽底部 401靠支点横杠 513—端的圓弧面 511作为支撑动触头支撑件 4运 动的支点。 T型钮子的摆动带动与其弹性连接的顶杆 303在 U型滑槽 401内同 步摆动, 顶杆 303的摆动驱动动触头 404上下运动, 所述的动触头 404存在着 两种最终状态, 第一种是动触头 404与其下方的第一路静触头 522相互接触形 成电连接, 第二种是动触头 404与其上方的第二路静触头 532相互接触形成电 连接, 图 6中所示的是动触头 404的第二种状态。 动触头 404上下摆动与静触 头接触的方式使装置结构简单, 通断性能可靠, 同时 U型滑槽 401的设计可以 使顶杆 303在滑槽内平滑稳定地滑动, 从而操作开关能够获得较好的手感。
如图 7-10所示, 本发明的退线子 7, 所述的退线子 7安装在基座 8内相应 的限位槽中, 退线子 7包括退线子 7两翼的退线导向耳 710、 退线子 7背面底 部的背弧面 720以及凸台 730。所述的退线导向耳 710包括上部的连接斜面 714, 下部的导向斜面 712、 侧面的直面 713与连接直面 713和连接斜面 714的退线 弧面 711, 所述的退线弧面 711与弹簧片 6的卡线部分底面相接触, 在退线时 退线弧面 711推动卡线部分使卡线端对导线失去作用力, 从而拔出导线实现退 线功能, 所述的导向斜面 712安装在基座 8内的斜面导轨 805上, 在推动退线 子 7移动时, 使退线子 7沿导向斜面 712向斜上方运动, 退线子 7通过斜面运 片 6的运动轨迹更符合弹簧片 6的卡线部分的斜面, 使得退线子 7推动弹簧片 6退线的过程更为緩和, 从而有效地保护了弹簧片 6因多次退线过程产生的形 变, 使弹簧片及无螺纹接线端子装置更加安全稳定。
如图 11所述, 本发明的基座 8, 所述的基座 8包括接线孔 801、 端子片限 位槽 802、 定位筋 803、 弹簧片安装槽 804、 退线子斜面导轨 805、 触点保护壁 806、 退线子空腔 807及固定翼限位槽 809。 所述的基座 8内底部四角设置有可 供导线进出的接线孔 801, 所述的每个接线孔 801都相邻有两个垂直连接的基 座 8侧壁。 所述的定位筋 803是由安装孔 801向相邻的基座 8侧壁延伸出的凸 起, 用于对固定在弹簧片 6、 端子片斜面 515a及基座 8侧壁形成的三角区域内 的导线进一步导向限位。定位筋 803与另一侧基座 8侧壁构成端子片限位槽 802, 端子片 515安装在端子片限位槽 802内。 所述的弹簧片安装槽 804相对于端子 片限位槽 802在安装孔 801的另一侧设置, 弹簧片安装槽 804形状与弹簧片 6 的卡线部分相吻合用于限位安装弹簧片 6。 所述的退线子空腔 807位于基座 8 内底部两侧中间位置用于安装退线子 7, 退线子空腔 807两侧有安装退线子 7 的导向斜面 712的退线子斜面导轨 805, 所述的退线子 7通过导向斜面 712沿 斜面导轨 805向斜上方移动, 此种移动轨迹在退线子 7使用时可达到省力且保 护弹簧片 6的目的。 所述的触点保护壁 806设在基座 8—侧, 且该侧在触点保 护壁 806与两侧的基座 8侧壁之间还安装有第一路静触头支撑件 520和第二路 静触头支撑件 530, 导电件 510在触点保护壁 806所在基座 8位置的另外一侧 相对触点保护壁 806安装, 触点保护壁 806是开口朝向导电件 510并半包围两 个静触头及动触头的分隔壁, 所述的两个静触头支撑件的两个静触头延伸到触 点保护壁 806内, 所述的第一路静触头支撑件 520通过 U型连接片 521从触点 保护壁 806开口部分将第一路静触头 522延伸进触点保护壁 806内底部, 所述 的第二路静触头支撑件 530通过第二路静触头平台 531由上往下延伸将第二路 静触头 532放置在触点保护壁 806内的上部,两个静触头之间放置动触头 404。 触点保护壁 806的设计可防止动触头 404在两个静触头之间切换的过程中, 产 生的震动、 电弧等对其他机构造成的影响, 有效地将触头动作部分与其他机构 进行了隔离保护。 第一路静触头支撑件 520通过 U型连接片 521延伸进触点保 护壁 806内,无需在触点保护壁 806内上开槽,且可辅助起到安装支撑的作用, 安装方便。所述的固定翼限位槽 809用于限位动触头支撑件 4上的固定翼 402, 防止动触头支撑件 4在支点横杠 513上摆动时发生的偏移。 所述的导电件 510 延伸出的连接片 514和支点横杠 513安装在两侧固定翼限位槽 809之间的凹槽 810内。
如图 12所示, 本发明的无螺纹接线端子截面结构, 所述的触头导电组件 5 的门型结构内安装有弹簧片 6, 所述的弹簧片 6包括压线部分 611和卡线部分 612 , 所述的压线部分 611和卡线部分 612与门型结构垂直部分的端子片 515 接触安装, 弹簧片 6背部直面贴靠在门型结构垂直部分的另一侧安装, 弹簧片 6通过安装在基座 8内的弹簧片安装槽 804内的底部的斜面及弧面安装限位。 在端子片 515与压线部分 611和卡线部分 612相接触下方的基座 8上设置有接 线孔 801, 导线沿图 12中箭头方向插进无螺纹接线端子装置, 所述的卡线部分 612受到导线的挤压力后产生反作用力作用于导线, 将导线卡在端子片 515的 端子片斜面 515a上, 同时压线部分 611对导线形成限位固定, 最终导线被固 定在由弹簧片 6、 端子片斜面 515a以及基座 8侧壁形成的三角形区域内, 所述 的三角形可适应横截面积 1. 5 mm2 -4 mm2范围任意规格硬导线并对导线进行夹 紧固定, 形成接线可靠的无螺纹接线端子。 此外, 导电件 510门字型水平部分 的缺口以及第一路静触头支撑件 520和第二路静触头支撑件 530门字型水平部 分的凸台 523可以使导线插入无螺纹接线端子更深, 提高接线的稳定性。
如图 13所示, 本发明的退线端子截面结构, 退线子 7两翼的退线导向耳 710底部为导向斜面 712,所述的导向斜面安装在基座 8内的斜面导轨 805上, 在推动退线子 7退线的过程中, 导向斜面 712沿斜面导轨 805运动, 从而使退 线子 7向斜上方运动, 退线导向耳上方的退线弧面 711在退线的过程中沿弹簧 片 6卡线部分 612斜面从下至上顶开卡线部分 612, 使卡线部分对导线不再具 有作用力, 最后沿图 13中箭头方向拔出导线实现退线功能。 退线过程中退线 子 7斜向上运动的方式更符合卡线部分 612的斜面受力特点, 从而推动退线子 更为省力, 同时沿卡线部分 612斜面推动弹簧片 6的过程有效地保护了弹簧片 6, 使弹簧片 6不会因导线多次插拔而发生严重的变形。
如图 14和 15所示, 本发明的压板 2与基座 8, 所述的压板 2两侧的平面侧 壁 202两端设置有卡件 201,所述的基座 8背面两侧边沿处设置与卡件 201相对 应的卡件缺口 808, 当基座 8内所有装置零件安装到位时, 将卡件 201卡扣进与 其对应的卡件缺口 808 内, 使压板 1与基座 8 固定且安装固定方式简便, 提高 组装速度。
图 16和 17是本发明的弹簧片 6的另一实施例, 如图 14所述的弹簧片 6 包括依次首尾相接的卡线片段 601、 第一弧段 602、 连接片段 603、 第二弧段 604、 压线片段 605、 第三弧段 606及限位片段 607。 弹簧片 6安装在基座 8内 的弹簧片安装槽内且被触头导电组件 5的门型结构包围限位, 所述的卡线片段 601端部为卡线部 601a, 第二弧段 604的弧面部分为压线部 604a, 所述的卡线 部 601a和压线部 604a朝向基座 8内与弹簧片限位槽相邻的接线孔 801, 并且 相对于端子片 515上的端子片斜面 515a设置。 所述的限位片段 607贴靠在门 型结构侧壁上用于固定限位弹簧片 6。 导线进入到无螺纹接线端子时, 挤压卡 线部 601a使卡线片段 601发生变形,卡线片段 601产生反作用力使压线部 604a 挤压导线线芯部分, 同时压线部 604a对导线进行限位固定, 使导线被弹簧片 6 与端子片 515固定, 从而形成导线与无螺纹接线端子电连接。 卡线片段 601、 第一弧段 602、 连接片段 603、 第二弧段 604、 压线片段 605及第三弧段 606构 成的 S型弹簧片相比于传统弹簧片结构, 增大了弹簧片产生变形的片段占弹簧 片总长度的比例, 使弹簧片变形能力及恢复能力增强, 可使弹簧片 6固定横截 面积 1. 5 mm2 -4 mm2范围任意规格硬导线, 并且恢复能力强的 S型弹簧片 6可 经受大线径的导线的多次插拔过程且不产生变形影响。 进一步与具有端子片斜 面 515a的端子片、 基座 8的侧壁配合, 可提高开关的可靠性和使用寿命。
如图 17所示的弹簧片 6的侧面结构, 由卡线片段 601、 连接片段 603和压 线片段 605的延长线分别与端子片 515的延长线相交所形成的三个同位角 A、B、 C的角度范围均为 15° 至 75° , 并且这三个同位角 A、 B、 C的角尖的指向均与 导线的插入方向 D同向。 前述的三个同位角 A、 B、 C均小于 90度的意义在于, 它能使分别与卡线片段 601、连接片段 603和压线片段 605衔接的第一弧段 602、 第二弧段 604和第三弧段 606这三个弧段能获得更多的有效弹性变形, 从而在 插入 4 mm2 的硬导线的情况下,使卡线片段 601、第一弧段 602、连接片段 603、 第二弧段 604、 压线片段 605、 第三弧段 606仍在有效的弹性变形范围内, 即 不会产生塑性变形, 并且提高开关的接线能力。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明, 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说, 在不脱离本发明构思的前提下, 还可以做出若干简单推演或替 换, 都应当视为属于本发明的保护范围。

Claims

权 利 要 求 书
1.一种开关结构, 包括钮子装置(3) 、 动触头支撑件(4) 、 触头导电组 件 (5) 、 弹簧片 (6) 、 退线子 (7)及基座(8) , 其特征在于:
所述的触头导电组件 (5) 包括导电件 (510)和两个静触头支撑件, 所述 的两个静触头支撑件相向延伸出上下相对应设置的两个静触头, 所述的导电件 (510) 由两个门字型结构并排连接组成并安装在基座(8) 的一侧, 所述的两 个静触头支撑件均为门字型结构并安装在基座( 8 )另一侧,所述导电件( 510 ) 和两个静触头支撑件的门字型结构内安装有弹簧片 (6) , 由弹簧片 (6) 与门 字型结构配合形成夹持导线的无螺纹接线端子装置;
所述的动触头支撑件 (4 ) 安装在基座 (8 ) 内并被导电件 (510) 向开关 中部延伸出的支点所支撑, 所述的动触头支撑件 (4 ) 向两个静触头方向延伸 设有动触头 (4(M ) , 所述的钮子装置 (3) 与动触头支撑件 (4 )相接触, 通 过摆动钮子装置 (3)使动触头支撑件 (4 ) 以导电件 (510) 向开关中部延伸 出的支点为支撑摆动, 从而驱动动触头 ( 404 )在两个相对应设置的静触头之 间上下摆动, 可分别与两个静触头形成电连接。
2.根据权利要求 1所述的开关结构, 其特征在于: 所述的导电件 (510) 和两个静触头支撑件的门字型结构垂直部分的其中一侧是端子片 (515, 525, 535 ), 所述的端子片( 515, 525, 535 )包括端子片斜面( 515a, 525a, 535a ), 所述的弹簧片 (6) 包括压线部分(611 )和卡线部分(612) , 所述的压线部 分(611 )和卡线部分(612)与门型结构垂直部分的端子片 (515, 525, 535 ) 接触对导线形成限位固定, 由弹簧片 (6)、 端子片斜面(515a, 525a, 535a) 以及基座( 8 )侧壁形成固定导线的三角形区域,其中端子片斜面( 515a, 525a, 535a) 与基座(8)侧壁之间的夹角为锐角。
3.根据权利要求 1所述的开关结构, 其特征在于: 所述的弹簧片 (6) 包 括依次首尾相接的卡线片段(601 ) 、 第一弧段( 602 ) 、 连接片段( 603 ) 、 第二弧段( 604 ) 、 压线片段( 605 ) 、 第三弧段( 606 )及限位片段( 607 ) , 三个弧段构成了 S型的弹簧片 (6) , 弹簧片 (6)安装在基座(8) 的弹簧片 安装槽内且被触头导电组件( 5 )的门型结构包围限位,所述的卡线片段( 601 ) 端部为卡线部 (601a) , 第二弧段(6(H) 的弧面部分为压线部 (6(Ma) , 所 述的卡线部 (601a)和压线部 (6(Ma)相对于端子片 (515) 并且相邻于基座 (8) 内的接线孔(801 )设置, 所述的限位片段( 607 )贴靠在门型结构侧壁 上固定限位弹簧片 (6) , 导线挤压卡线部 (601a)使卡线片段(601 )发生变 形, 卡线片段(601 )产生反作用力使压线部 ( 604a)挤压导线线芯部分, 同 时压线部 ( 604a)对导线进行限位固定 。
4.根据权利要求 1-3任一所述的开关结构,其特征在于:所述的退线子( 7 ) 安装在基座(8) 内相应的限位槽中, 退线子 (7) 包括退线子 (7) 两翼的退 线导向耳(710) , 所述的退线导向耳 (710) 包括上部与侧面连接处的退线弧 面 ( 711 )及下部的导向斜面 ( 7U ) , 所述的退线弧面 ( 711 ) 与弹簧片 ( 6 ) 的卡线部底面相接触, 退线时退线弧面 (711 )推动卡线部使卡线部对导线失 去作用力从而拔出导线实现退线功能,所述的导向斜面( 712 )安装在基座( 8 ) 内的斜面导轨( 805 )上, 使退线子 (7 ) 沿导向斜面 (712) 向斜上方运动。
5.根据权利要求 1所述的开关结构, 其特征在于: 基座(8) 内安装有两 个静触头支撑件的一侧设置有触点保护壁 ( 806 ) , 所述的两个静触头支撑件 安装在触点保护壁 ( 806 )与基座(8) 两侧的侧壁之间, 所述的两个静触头支 撑件的两个静触头延伸到触点保护壁 ( 806 ) 内, 所述的触点保护壁 ( 806 )开 口朝向基座(8) 另一侧的导电件(510)并半包围两个静触头及动触头并将触 头与其他机构分隔。
6.根据权利要求 5所述的开关结构, 其特征在于: 所述的两个静触头支撑 件包括第一路静触头支撑件( 520 )和第二路静触头支撑件 ( 530 ) , 所述的第 一路静触头支撑件 ( 520 ) 沿门字型结构一侧的垂直部分底部延伸有一相对第 一路静触头支撑件 ( 520 )横向倾斜放置的 U型连接片 (521 ) , 所述的 U型连 接片 (521 ) 的端部设有第一路静触头 ( 522 ) , 所述的第一路静触头 ( 522 ) 通过 U型连接片从触点保护壁 ( 806 )开口部分延伸进触点保护壁 ( 806 ) 内底 部, 所述的第二路静触头支撑件 ( 530 )通过第二路静触头平台 (531 ) 由上往 下延伸将第二路静触头 ( 532 )放置在触点保护壁 ( 806 ) 内的上部, 两个静触 头之间设有动触头 ( 404 ) 。
7.根据权利要求 1 所述的开关结构, 其特征在于: 所述的钮子装置 (3) 包括 T型结构的钮子 ( 301 ) 、 连接弹簧( 302 )及顶杆( 303 ) , 所述的 T型 结构的钮子 (301 )垂直部分有一用于安装连接弹簧( 302 ) 和顶杆 ( 303 ) 的 圓柱型空腔, 所述的连接弹簧( 302 )和顶杆( 303 )安装在圓柱形空腔内, 并 通过套在顶杆 ( 303 )尾部的连接弹簧( 302 ) 与钮子 ( 301 ) 弹性连接, 顶杆
( 303 ) 的端部与动触头支撑件 ( 4 )接触。
8.根据权利要求 1所述的开关结构,其特征在于:所述的动触头支撑件( 4 ) 包括 U型滑槽 (401 ) 、 设在 U型滑槽 (401 ) 两侧的固定翼( 2) 、 向 U型 滑槽(401 )—端延伸出的动触头金属片 ( 403 )及安装在动触头金属片 ( 403 ) 上的动触头 ( 404 ) , 所述的导电件 (510) 支撑动触头支持件 (4 )底部, 所 述的钮子装置(3)的在 U型滑槽(401 )内可自由滑动并驱动触头支撑件(4) 以导电件 (510) 的支撑部分为支点摆动, 从而带动动触头 ( 404 ) 上下移动, 所述的固定翼( 402 ) 安装在基座 (8 ) 中部两侧的固定翼限位槽 ( 809 ) 内限 位动触头支撑件 (4) 。
9.根据权利要求 1或 8所述的开关结构, 其特征在于: 所述导电件( 510 ) 的门字型垂直部分一侧为端子片 (515) , 另一侧底部连接且向开关中部延伸 出水平连接片 (514) , 所述的水平连接片 (514)末端的边沿垂直设置有呈一 字型的支点横杠(513) , 所述的支点横杠(513)—侧与连接片 (514) 边沿 垂直连接另一侧为圓弧面(511 ),所述的圓弧面(511 )支撑动触头支撑件(4)。
10.根据权利要求 1所述的开关结构, 其特征在于: 所述的基座(8) 内设 有定位筋( 803 ), 所述的定位筋( 803 )是由安装孔( 801 )向相邻的基座( 8 ) 侧壁延伸出的凸起, 定位筋 ( 803 )与另一侧基座(8)侧壁构成端子片限位槽
( 802 ) , 所述的端子片 (515, 525, 535 )安装在端子片限位槽 ( 802 ) 内。
PCT/CN2014/079351 2014-04-29 2014-06-06 开关结构 WO2015165144A1 (zh)

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