# US 11,441,763 B2 · Lighting apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,441,763 B2 - Document ID: US11441763B2 - Status: Granted - Kind: B2 - Application number: 17/027,315 - Filed: 2020-09-21 - Published: 2021-03-25 - Granted: 2022-09-13 - Earliest claimed: 2019-09-20 - Assignees: Xiamen Leedarson Lighting Co., Ltd - Applicants: Xiamen Leedarson Lighting Co., Ltd - Inventors: Zongjiang Zheng; Fucheng Sun; Wenhui Yang; Shouqiang Hou; Yongzhe Dong; Xiaoliang Wen - Web page: https://patentgrep.com/patent/US11441763B2 ## CPC - F21V 23/04: the elements being switches (safety devices F21V25/00) - F21S 8/02: of recess-mounted type, e.g. downlighters (specially adapted for vehicle exteriors F21S41/00-F21S45/00) - F21V 7/043: {with cylindrical surface} - F21V 23/003: {the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array} - F21V 25/00: Safety devices structurally associated with lighting devices (gas- tight or water-tight arrangements F21V31/00; in general F16P; protective circuit arrangements per se H02H7/00) - F21V 17/14: Bayonet-type fastening - F21V 23/008: {the casing being outside the housing of the lighting device} - F21Y 2115/10: Light-emitting diodes [LED] - Y02B 20/40: Control techniques providing energy savings, e.g. smart controller or presence detection - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A lighting apparatus includes a limit switch, a wiring box, a base holder and a light source module. The wiring box is for disposing the limit switch and for receiving a power wire connected to an external power. The base holder having a terminal connector electrically connected to the wiring box. The base holder has an opening for inserting a lever of the limit switch. The light source module is installed into the base holder. The light source module triggers the lever of the limit switch to turn on power supply to the light source module via the power wire and the terminal connector. ## Claims ### Claim 1 A lighting apparatus comprising: a limit switch; a wiring box for disposing the limit switch and for receiving a power wire connected to an external power; a base holder having a terminal connector electrically connected to the wiring box, wherein the base holder has an opening for inserting a lever of the limit switch; and a light source module installed into the base holder, wherein the light source module triggers the lever of the limit switch to turn on power supplied to the light source module via the power wire and the terminal connector. ### Claim 2 (depends on 1) The lighting apparatus of claim 1, wherein the light source module is attached to the base holder by inserting the light source module to approach an inner top of the base holder, when a relative distance between a first top of the light source module and the inner top of the base holder is less than a predetermined threshold, the first top of the light source module moves the lever of the limit switch to turn on the power supply. ### Claim 3 (depends on 2) The lighting apparatus of claim 2, wherein a ratio between the predetermined threshold to a height of the base holder is between 0.1 to 0.3. ### Claim 4 (depends on 2) The lighting apparatus of claim 2, wherein the top of the light source module has multiple fixing columns, each fixing column has a protruding head and a narrow neck, a diameter of the protruding head is larger than the narrow neck, the base holder has multiple sliding grooves for inserting and fixing columns, when the fixing column are inserted into the sliding grooves and rotate with respect to the sliding groove, the light source module is fixed to the base holder. ### Claim 5 (depends on 4) The lighting apparatus of claim 4, wherein a first diameter of an entrance part of the sliding groove is larger than the diameter of the protruding head, a sliding part of the sliding groove has a second diameter larger than the narrow neck and smaller than the protruding head. ### Claim 6 (depends on 4) The lighting apparatus of claim 4, wherein the terminal connector is located at a center position symmetrically surrounding by the sliding grooves. ### Claim 7 (depends on 1) The lighting apparatus of claim 1, wherein the light source module is a downlight device with multiple fixing springs to fix the light source module to an installation cavity. ### Claim 8 (depends on 1) The lighting apparatus of claim 1, wherein the wiring box has a spring enclosing the power wire to limit a movement range of the power wire. ### Claim 9 (depends on 8) The lighting apparatus of claim 8, wherein the spring has a first spring part and a second spring part, the first spring part and the second spring part have a bending angle for elastically limiting the movement of the power wire. ### Claim 10 (depends on 8) The lighting apparatus of claim 8, wherein the wiring box has a first wire hole and a second wire hole, two ends of the spring are respectively disposed to engage the first wire hole and the second wire hole, the power wire passes through the second wire hole to electrically connect to the terminal connector of the base holder. ### Claim 11 (depends on 1) The lighting apparatus of claim 1, wherein the base holder has a reflector cup, and the light source module is enclosed in the reflector cup for the reflector cup to reflect an output light of the light source module. ### Claim 12 (depends on 1) The lighting apparatus of claim 1, wherein the reflector cup is detachable from the base holder to be replaced with another reflector cup with a different diameter and shape. ### Claim 13 (depends on 1) The lighting apparatus of claim 1, wherein the wiring box has an entrance for fixing a top of the base holder. ### Claim 14 (depends on 1) The lighting apparatus of claim 1, wherein the wiring box and the base holder are installed to an installation platform, and the light source module is capable of being attached to and removed from the base holder by a user when needed. ### Claim 15 (depends on 1) The lighting apparatus of claim 1, wherein the base holder has an extended module to electrically connect to a driver circuit of the light source module to extend a function of the light source module. ### Claim 16 (depends on 15) The lighting apparatus of claim 15, wherein the extended module is a network circuit for connecting the light source module to a network. ### Claim 17 (depends on 1) The lighting apparatus of claim 1, wherein a driver circuit of the light source module detects a connected type of the base holder to determine an operation mode for driving a LED module of the light source module. ### Claim 18 (depends on 17) The lighting apparatus of claim 17, wherein the driver circuit detects a mode switch connected to the terminal connector to determine the connected type of the base holder. ### Claim 19 (depends on 17) The lighting apparatus of claim 17, wherein the driver circuit determines an optical parameter set for driving the LED module to generate a corresponding output light.