# US 10,480,735 B2 · Magnetic levitation imitation flame device and imitation flame lamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,480,735 B2 - Document ID: US10480735B2 - Status: Granted - Kind: B2 - Application number: 16/046,790 - Filed: 2018-07-26 - Published: 2018-12-27 - Granted: 2019-11-19 - Earliest claimed: 2018-03-16 - Applicants: Wei Hu; Chao Li - Inventors: Wei Hu; Chao Li - Web page: https://patentgrep.com/patent/US10480735B2 ## CPC - F21S 10/046: {by movement of parts, e.g. by movement of reflectors or light sources} - F21S 6/001: {candle-shaped} - H02N 15/00: Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for (electric or magnetic devices for holding work on machine tools B23Q3/15 {; monorail vehicle propulsion or suspension B60L13/00}; sliding or levitation devices for railway systems B61B13/08; material handling devices associated with conveyors incorporating devices with electrostatic or magnetic grippers B65G47/92; separating thin or filamentary articles from piles using magnetic force B65H3/16; delivering thin or filamentary articles from magnetic holders by air blast or suction B65H29/24; bearings using magnetic or electric supporting means F16C32/04; relieving bearing loads using magnetic means F16C39/06; magnets H01F7/00; dynamo-electric clutches or brakes H02K49/00 {; electric furnaces with simultaneous levitation and heating H05B6/32}) - F21W 2121/00: Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00 - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - H02N: ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS ## Abstract A magnetic levitation imitation flame device includes a mounting base, a flame member, a positioning bracket, a first magnet, and a second magnet. The positioning bracket is fixed in the mounting base. The first magnet is disposed on the flame member. The flame member is disposed on the positioning bracket and protrudes outwards from the mounting base. The second magnet is fixed at a lower end of the positioning bracket. The first magnet and the second magnet are arranged up and down. Magnetic poles thereof facing each other have same polarity so that the flame member is levitated relative to the positioning bracket under a repulsive force of the first magnet and the second magnet. Thus, the flame member swings with big angle, naturally and realistically, and saves electric energy. In addition, an imitation flame lamp is also provided. ## Claims ### Claim 1 A magnetic levitation imitation flame device, comprising a mounting base, a flame member, a positioning bracket, a first magnet, and a second magnet, wherein the positioning bracket is fixed in the mounting base, the first magnet is disposed on the flame member, the flame member is disposed on the positioning bracket and protrudes outwards from the mounting base, the second magnet is fixed at a lower end of the positioning bracket, the first magnet and the second magnet are arranged up and down, and magnetic poles thereof facing each other have the same polarity so that the flame member is levitated relative to the positioning bracket under a repulsive force of the first magnet and the second magnet, the positioning bracket comprises a supporting rod, a positioning shaft, and a connection frame, the positioning shaft is formed at an upper end of the supporting rod, one end of the connection frame is connected to the supporting rod, and the other end of the connection frame is connected to an inner sidewall of the mounting base, the first magnet is provided with a positioning hole, the positioning shaft is sleeved in the positioning hole of the first magnet, an elongated hole is defined on the flame member, the positioning shaft is passed through the positioning hole to insert into the elongated hole, and the second magnet is arranged on the supporting rod. ### Claim 2 (depends on 1) The magnetic levitation imitation flame device according to claim 1, wherein the second magnet is arranged in an opening of the bottom surface of the supporting rod. ### Claim 3 (depends on 2) The magnetic levitation imitation flame device according to claim 2, wherein the flame member is provided with an elongated slot, one end of the elongated slot is a mounting hole for accommodating the first magnet, and the supporting rod is placed in the elongated slot. ### Claim 4 (depends on 1) The magnetic levitation imitation flame device according to claim 1, wherein the flame member comprises a flame piece and a rocking part, the flame piece extends downwards to form a connection pin, the rocking part is provided with a connection hole, and the connection pin is inserted into the connection hole so that the flame piece is connected with the rocking part. ### Claim 5 An imitation flame lamp, comprising: a shell; a power supply, a circuit board, a drive device, and an illuminant respectively installed in the shell; and a magnetic levitation imitation flame device installed in the shell, the magnetic levitation imitation flame device comprising a mounting base, a flame member, a positioning bracket, a first magnet, and a second magnet, wherein the positioning bracket is fixed in the mounting base, the first magnet is disposed on the flame member, the flame member is disposed on the positioning bracket and protrudes outwards from the mounting base, the second magnet is fixed at a lower end of the positioning bracket, the first magnet and the second magnet are arranged up and down, and magnetic poles thereof facing each other have the same polarity so that the flame member is levitated relative to the positioning bracket under a repulsive force of the first magnet and the second magnet; the positioning bracket comprises a supporting rod, a positioning shaft, and a connection frame, the positioning shaft is formed at an upper end of the supporting rod, one end of the connection frame is connected to the supporting rod, and the other end of the connection frame is connected to an inner sidewall of the mounting base, the first magnet is provided with a positioning hole, the positioning shaft is sleeved in the positioning hole of the first magnet, an elongated hole is defined on the flame member, the positioning shaft is passed through the positioning hole to insert into the elongated hole, and the second magnet is arranged on the supporting rod; wherein the flame member is protruded outwards from a top surface of the shell, the circuit board is electrically connected to the power supply through a switch, the illuminant is electrically connected to the circuit board and irradiates light towards the flame member, and the drive device is electrically connected to the circuit board and drives the flame member to swing. ### Claim 6 (depends on 5) The imitation flame lamp according to claim 5, wherein the drive device comprises a third magnet and a coil, the third magnet is fixed to a lower end of the flame member, the coil is located under the flame member and generates an electromagnetic field under the control of the circuit board to control the flame member to swing. ### Claim 7 (depends on 6) The imitation flame lamp according to claim 6, wherein a bottom surface of the flame member is provided with a fixing hole, and the third magnet is accommodated in the fixing hole. ### Claim 8 (depends on 5) The imitation flame lamp according to claim 5, wherein the shell is a candle shell.