# US 2021/0278077 A1 · Lighting apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0278077 A1 - Document ID: US20210278077A1 - Status: Published application - Kind: A1 - Application number: 17/190,956 - Filed: 2021-03-03 - Published: 2021-09-09 - Earliest claimed: 2020-03-03 - Assignees: Xiamen Leedarson Lighting Co., Ltd - Applicants: Xiamen Leedarson Lighting Co.,Ltd - Inventors: Pofeng Peng; TeJung Chien; Chao Wang - Web page: https://patentgrep.com/patent/US20210278077A1 ## CPC - F21V 33/0096: {Fans, e.g. ceiling fans (forced cooling of lighting devices characterised by the arrangement of fans F21V29/67)} - A61L 9/20: Ultraviolet radiation - F21V 7/0008: {providing for indirect lighting} - F21V 23/009: {the casing being inside the housing of the lighting device} - F21V 23/0471: {the sensor detecting the proximity, the presence or the movement of an object or a person} - A61L 2209/12: Lighting means - A61L 2209/14: Filtering means - A61L 2209/16: Connections to a HVAC unit - F21V 7/048: {with facets structure} - F21V 23/06: the elements being coupling devices {, e.g. connectors} - 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 - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A lighting apparatus includes a fan device, a driver, a connector and a light module. The lighting apparatus is installing to a cavity of a ceiling. The fan device has a fan and an air channel. The fan is placed in the cavity. The driver converts an external power source to a first driving current supplied to the fan device. The connector is fixed to the fan device. The first light source receives a second driving current provided by the driver. The air channel has an entrance between the main housing and the fan device. The entrance is visually concealed by the main housing when a viewer stands below the lighting apparatus. ## Claims ### Claim 1 A lighting apparatus for installing to a cavity of a ceiling, comprising: a fan device having a fan and an air channel, wherein the fan is placed in the cavity; a driver for converting an external power source to a first driving current supplied to the fan device; a connector fixed to the fan device; and a light module having a top cover, a main container and a first light source, wherein the top housing is attached to the connector, the main container is fixed to the top cover and has a light opening for a first light emitted by the first light source to escape, the main container is exposed outside the cavity, the first light source receives a second driving current provided by the driver, wherein the air channel has an entrance between the light module and the fan device, the entrance is visually concealed by the main housing when a viewer stands below the lighting apparatus. ### Claim 2 (depends on 1) The lighting apparatus of claim 1, wherein the connector has a power electrode for providing a second driving current to the first light source. ### Claim 3 (depends on 2) The lighting apparatus of claim 2, wherein the driver is integrated with the fan device and the first light source receives the second driving current via the power electrode, the second driving current is a direct current power. ### Claim 4 (depends on 2) The lighting apparatus of claim 2, wherein the light module is detachable from the connector to be replaced with another light module. ### Claim 5 (depends on 4) The lighting apparatus of claim 4, wherein the connector has a track for a connector part of the top cover to slide in, and the power electrode engages electrically with the first light source when the connector part of the top cover is moved to a predetermined position of the track. ### Claim 6 (depends on 2) The lighting apparatus of claim 2, wherein the connector has an Edison socket, and the top cover of the light module has an Edison cap to be attached to the Edison socket. ### Claim 7 (depends on 1) The lighting apparatus of claim 1, wherein the light module has an extending plate and a second light source, the second light source receives a third driving power from the driver to emit a second reflected by the extending plate. ### Claim 8 (depends on 7) The lighting apparatus of claim 7, wherein the extending plate has a prism surface with multiple protruding reflecting units. ### Claim 9 (depends on 7) The lighting apparatus of claim 7, wherein the extending plate conceals a lateral side of the connector and leaves another lateral side of the connector kept open as the entrance of the air channel. ### Claim 10 (depends on 7) The lighting apparatus of claim 7, wherein a motion sensor is disposed on the extending plate facing downwardly to a ground for detecting whether there is a person movement and the driver is electrically connected to the motion sensor to determine a response according to the person movement. ### Claim 11 (depends on 10) The lighting apparatus of claim 10, wherein the second light source is turned off when the first light source is turned on. ### Claim 12 (depends on 7) The lighting apparatus of claim 7, wherein the entrance is disposed between the fan device and the top cover of the light module with a air entrance direction having an angle less than 30 degrees with respect to a surface of the ceiling. ### Claim 13 (depends on 1) The lighting apparatus of claim 1, wherein the fan device has a filter for filtering dust of an air flowing via the entrance of the air channel. ### Claim 14 (depends on 1) The lighting apparatus of claim 1, wherein a third light source is disposed in the air channel to sanitize an air passing by the air channel, the third light source has an ultraviolet light. ### Claim 15 (depends on 14) The lighting apparatus of claim 14, wherein the ultraviolet light emits a third light with a wave length between 100 to 180 nm, the third light source is concealed within the air channel and the third light is not exposed outside the lighting device. ### Claim 16 (depends on 1) The lighting apparatus of claim 1, wherein an ultra incense device is disposed in the air channel to transmit an artificial odor. ### Claim 17 (depends on 1) The lighting apparatus of claim 1, wherein the fan device has a heater for generated a heated air outside the entrance of the air channel. ### Claim 18 (depends on 17) The lighting apparatus of claim 17, wherein the light module has a heat sink thermally connected to the first light source to transmit heat of the first light source to engage the air channel for heat dissipation. ### Claim 19 (depends on 1) The lighting apparatus of claim 1, wherein the fan device has a housing made with a single folded metal sheet. ### Claim 20 (depends on 1) The lighting apparatus of claim 1, wherein the first light source is arranged as a ring surrounding a filter facing to the entrance of the air channel.