# US 10,770,243 B2 · Push-button switch with good balance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,770,243 B2 - Document ID: US10770243B2 - Status: Granted - Kind: B2 - Application number: 16/474,046 - Filed: 2017-12-22 - Published: 2019-11-07 - Granted: 2020-09-08 - Earliest claimed: 2016-12-26 - Assignees: Dongguan City Kaihua Electronics Co., Ltd - Applicants: Dongguan City Kaihua Electronics Co., Ltd - Inventors: Fuxi Wu - Web page: https://patentgrep.com/patent/US10770243B2 ## CPC - H01H 3/125: {using a scissor mechanism as stabiliser} - H01H 13/14: Operating parts, e.g. push-button - H01H 13/023: {Light-emitting indicators (for multi-layer switches H01H13/83)} - H01H 13/10: Bases; Stationary contacts mounted thereon - H01H 13/52: the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch - H01H 2013/525: {using a return spring acting perpendicular to the actuating direction} - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract A push-button switch with good balance, including a base, a cover covering the base, a press core, a torsion spring, a conductive assembly and a press core slider, which are respectively arranged on the base. A guide pillar provided with guide hole is protruded upwardly from a center of the base. Two baffles are arranged on the base and at opposite sides of the guide pillar to form an annular receiving slot provided with a balance rod assembly formed by a first and a second balance rod cross-connected with each other, two crossing junctions of which are limited by a positioning slider. A cylinder is protruded downward from a center of an annular slot formed at a lower end of the press core. The cylinder and the guide pillar are respectively inserted into the guide hole and the annular slot. The guide pillar is sleeved with a spring. ## Claims ### Claim 1 A push-button switch with good balance, comprising: a base and a cover covering the base; wherein the cover is provided with an orifice; the push-button switch further comprises a press core, a torsion spring, a conductive assembly and a press core slider, which are respectively arranged on the base; a guide pillar is protruded upwardly from a center of an upper end of the base; a guide hole is formed in a center of the guide pillar; one end of the base is provided with a conductive assembly slot configured to accommodate the conductive assembly, an other end of the base is provided with a torsion spring slot configured to accommodate the torsion spring; two baffles are arranged on the upper end of the base and at each of opposite sides of the guide pillar, a gap is provided between the two baffles, such that an annular receiving slot is formed around the two baffles and the guide pillar; the press core slider is arranged at a side of the press core; an annular slot is formed at a lower end of the press core; a cylinder is protruded downward from a center position of the annular slot; the cylinder is inserted into the guide hole of the base, and the guide pillar of the base is inserted into the annular slot; the guide pillar and an outer side of the cylinder are sleeved with a spring; a balance rod assembly is arranged in the annular receiving slot; the balance rod assembly is split-type and formed by a first balance rod and a second balance rod cross-connected with each other; the first balance rod and the second balance rod are both clamped at the lower end of the press core; two crossing junctions of the first balance rod and the second balance rod are limited by a positioning slider arranged in the annular receiving slot and in the gap between the two baffles at a same side; a side edge of the positioning slider is provided with a limiting slot for clamping the first balance rod and the second balance rod; during a movement of the press core up and down, the first balance rod and the second balance rod swing up and down under a limit of the positioning slider, thereby keeping a press balance. ### Claim 2 (depends on 1) The push-button switch of claim 1, wherein the limiting slot is provided with an opening; an upper portion and a lower portion of the opening are respectively bent inwardly to form protrusions. ### Claim 3 (depends on 2) The push-button switch of claim 2, wherein the limiting slot has an arc shape. ### Claim 4 (depends on 3) The push-button switch of claim 3, wherein end faces of each protrusion form an angle. ### Claim 5 (depends on 4) The push-button switch of claim 4, wherein a convex rib is arranged on a side wall of the positioning slider and faces a side edge of the press core. ### Claim 6 (depends on 3) The push-button switch of claim 3, wherein a convex rib is arranged on a side wall of the positioning slider and faces a side edge of the press core. ### Claim 7 (depends on 2) The push-button switch of claim 2, wherein a convex rib is arranged on a side wall of the positioning slider and faces a side edge of the press core. ### Claim 8 (depends on 1) The push-button switch of claim 1, wherein a convex rib is arranged on a side wall of the positioning slider and faces a side edge of the press core. ### Claim 9 (depends on 1) The push-button switch of claim 1, wherein a groove is formed in a lower end surface of the press core, such that a plurality of convex corners are formed in the lower end surface of the press core. ### Claim 10 (depends on 9) The push-button switch of claim 9, wherein a plurality of relief slots for being inserted by the plurality of convex corners or a plurality of relief holes for being passed through by the plurality of convex corners are provided on the base and outside of the guide pillar. ### Claim 11 (depends on 1) The push-button switch of claim 1, wherein an upper end of the cylinder of the press core is formed with a mounting hole, and an LED lamp is arranged in the mounting hole. ### Claim 12 (depends on 1) The push-button switch of claim 1, wherein the first balance rod and the second balance rod are both U-shaped; an open end of the first balance rod and an open end of the second balance rod are arranged to cross each other; the first balance rod comprises a first transverse rod and first longitudinal rods respectively connected to two ends of the first transverse rod; an end of each of the first longitudinal rods is provided with a first hook bent outwardly; the second balance rod comprises a second transverse rod and second longitudinal rods respectively connected to two ends of the second transverse rod; an end of each of the second longitudinal rods is provided with a second hook bent inwardly; the first transverse rod is arranged at a lower end of one side of the press core, and the second transverse rod is arranged at a lower end of an other side of the press core. ### Claim 13 (depends on 1) The push-button switch of claim 1, wherein the conductive assembly comprises a static piece and a movable piece.