EP3955272A1 - Drehbarer druckschalter - Google Patents

Drehbarer druckschalter Download PDF

Info

Publication number
EP3955272A1
EP3955272A1 EP20190742.5A EP20190742A EP3955272A1 EP 3955272 A1 EP3955272 A1 EP 3955272A1 EP 20190742 A EP20190742 A EP 20190742A EP 3955272 A1 EP3955272 A1 EP 3955272A1
Authority
EP
European Patent Office
Prior art keywords
rotational
conductive terminal
push
elastic piece
conductive
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP20190742.5A
Other languages
English (en)
French (fr)
Inventor
Albert Huang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Joemex Electric Products Dongguan Co Ltd
Original Assignee
Joemex Electric Products Dongguan Co Ltd
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 Joemex Electric Products Dongguan Co Ltd filed Critical Joemex Electric Products Dongguan Co Ltd
Priority to EP20190742.5A priority Critical patent/EP3955272A1/de
Publication of EP3955272A1 publication Critical patent/EP3955272A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force
    • H01H13/58—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force with contact-driving member rotated step-wise in one direction
    • 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
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • 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
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"

Definitions

  • the present invention relates to a switch, and more particularly to a rotational push switch for controlling transmission of electric power or signals.
  • Push switches are widely used in various fields.
  • the push switches are usually used in electronic products, tools, vehicles, or industrial equipment, and the push switches can control a transmission circuit of an electric power or a signal.
  • the push switch can be alternately switched between an ON state and an OFF state by pressing a switch portion of the push switch.
  • An objective of the present invention is to provide a rotational push switch whose ON/OFF state can be easily recognized.
  • the rotational push switch includes a bottom shell, a conductive elastic piece, a top shell, a switch assembly, and a cap.
  • the bottom shell includes a first conductive terminal, a second conductive terminal, and a third conductive terminal which are mounted inside the bottom shell.
  • One end of the first conductive terminal and one end of the second conductive terminal respectively extend outward from a front side of the bottom shell.
  • One end of the third conductive terminal extends outward from a back side of the bottom shell.
  • One end of the conductive elastic piece is mounted inside the bottom shell, and is electrically connected to the third conductive terminal. Another end of the conductive elastic piece elastically contacts the second conductive terminal.
  • the top shell correspondingly engages with the bottom shell, and includes an annular seat mounted on a top of the top shell.
  • the switch assembly is mounted in the annular seat of the top shell to press the conductive elastic piece to make the conductive elastic piece and the second conductive terminal electrically connected or electrically isolated.
  • the switch assembly includes a rotatable push unit, and the push unit includes a plurality of alternately arranged ON symbols and OFF symbols which are mounted on a top of the push unit.
  • the cap is slidably mounted on the top shell to correspondingly press the switch assembly to make the switch assembly press the conductive elastic piece.
  • the cap includes a display window mounted on a top of the cap. When the conductive elastic piece is electrically connected to the second conductive terminal, the display window aligns with one of the ON symbols of the push unit. When the conductive elastic piece is electrically isolated from the second conductive terminal, the display window aligns with one of the OFF symbols of the push unit.
  • a user can alternately switch the rotational push switch to the ON state or the OFF state by repeatedly pressing the cap.
  • the rotational push switch is switched to the ON/OFF state, the ON/OFF symbols can be correspondingly rotated to align with the display window by the switch assembly. The user can see the ON/OFF symbols through the display window to quickly recognize the ON/OFF state of the rotational push switch.
  • the present invention is a rotational push switch 1, and the rotational push switch 1 includes a bottom shell 10, a top shell 20, a switch assembly 30, a conductive elastic piece 40, and a cap 50.
  • the bottom shell 10 and the top shell 20 are engaged to form a complete shell.
  • the bottom shell 10 includes a first conductive terminal 11, a second conductive terminal 12, and a third conductive terminal 13.
  • One end of the first conductive terminal 11 is mounted inside the bottom shell 10, and another end of the first conductive terminal 11 extends outward from a front side of the bottom shell 10.
  • One end of the second conductive terminal 12 is mounted inside the bottom shell 10, and another end of the second conductive terminal 12 extends outward from the front side of the bottom shell 10.
  • the end of the second conductive terminal 12 inside the bottom shell 10 forms a lower contact 121.
  • the third conductive terminal 13 is an L-shaped conductive piece.
  • One end of the third conductive terminal 13 is mounted inside the bottom shell 10, and another end of the third conductive terminal 13 extends outward from a back side of the bottom shell 10, and is bent upward.
  • a bottom of the bottom shell 10 forms a through hole 14, and the first conductive terminal 11 is correspondingly exposed out of the through hole 14.
  • the first conductive terminal 11 can be electrically connect to a load device via the through hole 14.
  • the conductive elastic piece 40 is mounted inside the bottom shell 10. One end of the conductive elastic piece 40 is mounted inside the bottom shell 10 and electrically connects to the third conductive terminal 13, and another end of the conductive elastic piece 40 forms an upper contact 41.
  • the upper contact 41 can elastically contact the lower contact 121 of the second conductive terminal 12.
  • the top shell 20 engages with the bottom shell 10 on a top of the bottom shell 10.
  • Two guide posts 21 are respectively formed by extending upward from two opposite sides of the top shell 20.
  • the guide posts 21 can be mounted at diagonally opposite corners of the top shell 20.
  • An annular seat 22 is formed by extending upward from a top of the top shell 20.
  • An opening is formed through the bottom of the annular seat 22. Via the opening of the bottom of the annular seat 22, an inner space of the annular seat 22 communicates with an inner space of the complete shell which is formed by engaging the bottom shell 10 and the top shell 20.
  • an inner wall of the annular seat 22 is recessed to form a plurality of guide grooves 221, and the guide grooves 221 respectively extend along an axial direction of the annular seat 22.
  • a plurality of oblique slots 222 and a plurality of oblique blocks 223 are alternately formed on a periphery of the opening of the bottom of the annular seat 22.
  • the oblique slots 222 and the oblique blocks 223 are inclined along a same direction.
  • an indicator light seat 24 is formed on the top of the top shell 20, and the indicator light seat 24 is positioned adjacent to the annular seat 22.
  • the switch assembly 30 is mounted on the annular seat 22 to push the conductive elastic piece 40 to an ON position or an OFF position.
  • the switch assembly 30 includes a push unit 31, a return spring 32, a driving cylinder 33, a rotational cylinder 34, and a push spring 35.
  • the push unit 31 includes an indicator portion and a rod.
  • the indicator portion includes a plurality of ON symbols 311 and a plurality of OFF symbols 312.
  • the ON symbols 311 and the OFF symbols 312 are alternately arranged on a top of the indicator portion of the push unit 31 to display the ON state or the OFF state of the rotational push switch 1.
  • the indicator portion is circular, and includes four ON symbols 311 and four OFF symbols 312.
  • the ON symbols 311 and the OFF symbols 312 are fan-shaped sectors, and colors of the ON symbols 311 are different from colors of the OFF symbols 312. An angle between centerlines of two adjacent sectors is 45 degrees.
  • the rod extends downward from the bottom of the indicator portion.
  • a protrusive rib 313 is formed on an outer wall of the rod and extends along an axial direction of the rod.
  • a bottom of the return spring 32 is mounted on a top of the annular seat 22.
  • a top of the return spring 32 supports the indicator portion of the push unit 31. When the push unit 31 is pressed, the return spring 32 provides a resilient force to the push unit 31.
  • the driving cylinder 33 is movably mounted inside the annular seat 22.
  • a plurality of protrusive blocks 331 are formed on an outer wall of the driving cylinder 33, and a plurality of sharp toothed portions 332 are formed on a bottom of the driving cylinder 33.
  • a number of the protrusive blocks 331 is same as a number of the guide grooves 221 of the annular seat 22, and the protrusive blocks 331 respectively engage with the guide grooves 221 to limit that the driving cylinder 33 can only move up and down in the annular seat 22. Namely, the driving cylinder 33 cannot rotate relative to the annular seat 22.
  • the rotational cylinder 34 is mounted inside the driving cylinder 33.
  • a key hole 341 is formed on a top of the rotational cylinder 34.
  • the rod of the push unit 31 is mounted through the driving cylinder 33 and the key hole 341 of the rotational cylinder 34, and the protrusive rib 313 correspondingly engages with the key hole 341.
  • the push unit 31 can rotate with the rotational cylinder 34.
  • a plurality of oblique toothed portions 342 and a plurality of blocks 343 are alternately and continuously formed around an outer wall of a bottom of the rotational cylinder 34.
  • the blocks 343 respectively extend outward along a radial direction of the rotational cylinder 34.
  • the oblique toothed portions 342 and the blocks 343 each have a respective oblique surface formed on a top thereof.
  • the push spring 35 is mounted inside the rotational cylinder 34. One end of the push spring 35 contacts an inner wall of a top side of the rotational cylinder 34, and another end of the push spring 35 contacts the conductive elastic piece 40. When the push spring 35 is pressed, the push spring 35 pushes the conductive elastic piece 40 to make the upper contact 41 of the conductive elastic piece 40 correspondingly contact the lower contact 121 of the second conductive terminal 12. When the push spring 35 is not pressed, the upper contact 41 of the conductive elastic piece 40 can be detached from the lower contact 121 of the second conductive terminal 12.
  • the cap 50 is slidably mounted on the guide posts 21 of the top shell 20, and covers the top shell 20 and the switch assembly 30 to facilitate a user to press the cap 50 for switching between the ON/OFF states of the rotational push switch 1.
  • the push unit 31 can push the cap 50 to an original position of the cap 50 by the resilient force of the return spring 32.
  • two engagement portions 51 are respectively formed on two opposite sides of the cap 50, and the engagement portions 51 respectively engage with the guide posts 21 of the top shell 20.
  • a display window 52 is formed on a top of the cap 50.
  • the display window 52 can be a through hole, or is made of a transparent unit, such as glass or acrylic.
  • a position of the display window 52 corresponds to a position of the push unit 31 to expose out one of the ON symbols 311 or one of the OFF symbols 312.
  • a light-transmissive portion 53 is further formed on the top of the cap 50, and a position of the light-transmissive portion 53 corresponds to the indicator light seat 24 of the top shell 20.
  • the rotational push switch 1 further includes an indicator light assembly 60.
  • the indicator light assembly 60 includes a light emitting diode (LED) 61, a resistor 62, a diode 63, and a conductive spring 64. Further with reference to Fig. 6A , the LED 61 is mounted in the indicator light seat 24 of the top shell 20. One conductive pin of the LED 61 is electrically connected to the resistor 62, and further to the first conductive terminal 11 through the resistor 62. The resistor 62 is mounted inside the bottom shell 10. Another conductive pin of the LED 61 is electrically connected to one end of the diode 63, and another end of the diode 63 is electrically connected to the second conductive terminal 12 through the conductive spring 64.
  • LED light emitting diode
  • the LED 61 Since the LED 61 is electrically connected between the first conductive terminal 11 and the second conductive terminal 12, when the first conductive terminal 11 and the second conductive terminal 12 electrically connect to a power supply, the LED 61 can emit light without being influenced by the ON/OFF state of the rotational push switch 1.
  • the rotational push switch 1 When the rotational push switch 1 is in the ON state as shown in Fig. 6A , the user can press the cap 50 to switch the rotational push switch 1 to the OFF state as shown in Fig. 7A to Fig. 7C .
  • the push unit 31 When the cap 50 is pressed, the push unit 31 can be pushed downward by the cap 50, and the push unit 31 can further push the driving cylinder 33 and the rotational cylinder 34.
  • the block 343 mounted on the bottom of the rotational cylinder 34 is pushed to detach from the oblique block 223 of the annular seat 22, and the sharp toothed portions 332 mounted on the bottom of the driving cylinder 33 simultaneously pushes the oblique toothed portion 342 of the rotational cylinder 34.
  • the rotational cylinder 34 rotates. As shown in Fig. 7C , when the block 343 of the rotational cylinder 34 is rotated to be aligned with the guide groove 221, the block 343 of the rotational cylinder 34 is approximately aligned with the protrusive block 331 of the driving cylinder 33, and slides into the guide groove 221 with the protrusive block 331 of the driving cylinder 33. Then, the rotational cylinder 34 is pushed by the push spring 35 to be raised up, and the push spring 35 returns to an original state from a pressed state. Since the conductive elastic piece 40 is not pushed by the push spring 35, the upper contact 41 is detached from the lower contact 121 such that the conductive elastic piece 40 is in the OFF position. Namely, the rotational push switch 1 is in the OFF state.
  • the rotational push switch 1 is switched from the OFF state to the ON state, as shown in Fig. 6A to Fig. 6C .
  • the driving cylinder 33 is pressed downward to push the oblique toothed portion 342 of the rotational cylinder 34 to make the rotational cylinder 34 rotate.
  • the block 343 of the rotational cylinder 34 rotates along the oblique slot 222 to contact the oblique block 223, the block 343 of the rotational cylinder 34 and the protrusive block 331 of the driving cylinder 33 are substantially staggered.
  • the push spring 35 inside the rotational cylinder 34 is pressed to push the conductive elastic piece 40 to make the upper contact 41 of the conductive elastic piece 40 contact the lower contact 121.
  • the rotational cylinder 34 each time when the cap 50 is pressed to drive the rotational cylinder 34 to rotate, the rotational cylinder 34 further drives the push unit 31 to rotate together to make the ON symbols 311 and the OFF symbol 312 sequentially rotate to a position corresponding to the display window 52.
  • the ON symbol 311 of the push unit 31 corresponds to the display window 52.
  • the OFF symbol 312 of the push unit 31 corresponds to the display window 52. Therefore, the user can conveniently recognize the ON/OFF state of the rotational push switch 1 through the display window 52.
  • first conductive terminal 11 structures of the first conductive terminal 11, the second conductive terminal 12, and the third conductive terminal 13 can be modified according to requirements.
  • first conductive terminal 11 and the second conductive terminal 12 each include a respective clamping portion.
  • the clamping portions of the first conductive terminal 11 and the second conductive terminal 12 can clamp power contacts of the power supply to electrically connect to the power supply.
  • a schematic view shows a circuit connection of the rotational push switch 1 in an actual application.
  • the first conductive terminal 11 and the second conductive terminal 12 are respectively electrically connected to two terminals of the power supply S.
  • One terminal of a load device L is electrically connected to the first conductive terminal 11 through the through hole 14 of the bottom shell 10, and another terminal of the load device L is electrically connected to the third conductive terminal 13. Since the switch assembly 30 can control whether the third conductive terminal 13 is electrically connected to the second conductive terminal 12 or not, when the rotational push switch 1 is in the ON state, the load device L can be electrically connected to the power supply S through the rotational push switch 1 to receive electric power.
  • the use can press the cap 50 to switch the ON/OFF state of the rotational push switch 1. Further, the user can conveniently recognize the ON/OFF state of the rotational push switch 1 according to the ON/OFF symbols 311, 312 in the display window 52 of the cap 50.

Landscapes

  • Switches With Compound Operations (AREA)
EP20190742.5A 2020-08-12 2020-08-12 Drehbarer druckschalter Withdrawn EP3955272A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20190742.5A EP3955272A1 (de) 2020-08-12 2020-08-12 Drehbarer druckschalter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20190742.5A EP3955272A1 (de) 2020-08-12 2020-08-12 Drehbarer druckschalter

Publications (1)

Publication Number Publication Date
EP3955272A1 true EP3955272A1 (de) 2022-02-16

Family

ID=72050759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20190742.5A Withdrawn EP3955272A1 (de) 2020-08-12 2020-08-12 Drehbarer druckschalter

Country Status (1)

Country Link
EP (1) EP3955272A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB321502A (en) * 1928-09-17 1929-11-14 Louis Henry Reid Indicator for push pull electric switches
US3721789A (en) * 1972-03-17 1973-03-20 M Black Electrical switch indicator
DE3000212A1 (de) * 1979-02-08 1980-08-21 Contraves Ag Tastschalter
DE102011006178A1 (de) * 2011-03-25 2012-09-27 Siemens Aktiengesellschaft Busanschlussstecker, insbesondere PROFIBUS-Anschlussstecker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB321502A (en) * 1928-09-17 1929-11-14 Louis Henry Reid Indicator for push pull electric switches
US3721789A (en) * 1972-03-17 1973-03-20 M Black Electrical switch indicator
DE3000212A1 (de) * 1979-02-08 1980-08-21 Contraves Ag Tastschalter
DE102011006178A1 (de) * 2011-03-25 2012-09-27 Siemens Aktiengesellschaft Busanschlussstecker, insbesondere PROFIBUS-Anschlussstecker

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