# US 10,865,977 B1 · Heat dissipation device and high-power electric light source > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,865,977 B1 - Document ID: US10865977B1 - Status: Granted - Kind: B1 - Application number: 16/713,386 - Filed: 2019-12-13 - Granted: 2020-12-15 - Earliest claimed: 2019-10-25 - Assignees: Shenzhen Guanke Technologies Co., Ltd - Applicants: Shenzhen Guanke Technologies Co., Ltd - Inventors: Qing Lan; Tianlong Dai; Ligen Liu; Shoubao Chen; Wenhao Lin - Web page: https://patentgrep.com/patent/US10865977B1 ## CPC - F21K 9/233: specially adapted for generating a spot light distribution, e.g. for substitution of reflector lamps - F21V 29/763: {the planes containing the fins or blades having the direction of the light emitting axis} - F21V 29/67: characterised by the arrangement of fans - F21V 29/677: {the fans being used for discharging} - F21S 8/06: by suspension - F21Y 2115/10: Light-emitting diodes [LED] - F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR - 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 ## Abstract A heat dissipation device and high-power electric light source. The heat dissipation device includes a main radiator and a radiator fan; the main radiator includes a heat dissipation body and a heat dissipation mechanism. The heat dissipation body has a mounting surface and a junction surface. The heat dissipation mechanism includes a number of radiating fins mounted on the junction surface which extend substantially in the left-right direction at intervals and collectively form a heat dissipation channel extending in the left-right direction. The heat dissipation mechanism is provided with a first avoidance space, in which the junction surface has a center line perpendicular to the extension direction of the radiating fin, and the left and right parts of the main radiator bounded by the center line have the same heat dissipation capacity in the natural state. ## Claims ### Claim 1 A heat dissipation device used for the heat dissipation of an electric light source, comprising: a main radiator comprising a heat dissipation body and a heat dissipation mechanism, the heat dissipation body has a mounting surface and a junction surface, the mounting surface is used to mount a heat source surface of the electric light source, the heat dissipation mechanism comprising a plurality of radiating fins arranged on the junction surface which extends substantially in the left-right direction at intervals and collectively forms a heat dissipation channel extending in the left-right direction, the heat dissipation mechanism is provided with a first avoidance space, in which the junction surface has a center line perpendicular to an extension direction of the radiating fin, and left and right parts of the main radiator bounded by the center line have a same heat dissipation capacity in a natural state, and the first avoidance space is arranged on the right side of the center line; at least one radiator fan is provided that is installed in the first avoidance space and is used for radiating the airflow flowing from left to right in the heat dissipation channel. ### Claim 2 (depends on 1) The heat dissipation device as in claim 1, where in the heat dissipation mechanism is provided with a second avoidance space; the heat dissipation device further comprises at least one standby fan arranged in the second avoidance space, the standby fan is used for radiating airflow flowing from left to right in the heat dissipation channel, the second avoidance space is positioned on the left side of the first avoidance space. ### Claim 3 (depends on 2) The heat dissipation device as in claim 2, where in the heat dissipation device further comprises one or more first temperature control switches, the first temperature control switch is installed in the heat dissipation channel, and is connected in series to the input line of the standby fan, the first temperature control switch is independently controls the standby fan in series with the switch and switching the standby fan between the on and off states. ### Claim 4 (depends on 3) The heat dissipation device as in claim 3, wherein the junction surface is provided with a connection slot where a slot width of a slot bottom is larger than that of a slot opening, the connection slot is used for limiting the upward movement of the first temperature control switch, and the heat source surface of the electric light source is used for limiting the downward movement of the first temperature control switch. ### Claim 5 (depends on 1) The heat dissipation device as in claim 1, where in the heat dissipation device further comprises a protective net inserted in the heat dissipation channel, the heat dissipation channel is divided into an air inlet channel on the left side and an air outlet channel on the right side by the first avoidance space, and the protective net is arranged in the air inlet channel or/and the air outlet channel. ### Claim 6 (depends on 3) The heat dissipation device as in claim 3, further comprising a number of the radiator fans that are connected in parallel, and the heat dissipation device as claimed also comprises a plurality of fuses that are connected in series to the input line of the radiator fan. ### Claim 7 A high-power electric light source comprising: an electric light source shell; a driving power supply; a luminescent device; a heat dissipation device comprising a main radiator comprising a heat dissipation body and a heat dissipation mechanism, the heat dissipation body has a mounting surface and a junction surface, the mounting surface is used to mount a heat source surface of the electric light source, the heat dissipation mechanism comprising a plurality of radiating fins arranged on the junction surface which extends substantially in the left-right direction at intervals and collectively forms a heat dissipation channel extending in the left-right direction, the heat dissipation mechanism is provided with a first avoidance space, in which the junction surface has a center line perpendicular to an extension direction of the radiating fin, and left and right parts of the main radiator bounded by the center line have a same heat dissipation capacity in a natural state, and the first avoidance space is arranged on the right side of the center line; at least one radiator fan is provided that is installed in the first avoidance space and is used for radiating the airflow flowing from left to right in the heat dissipation channel; and wherein the electric light source shell is connected to the heat dissipation device and forms a heat dissipation cavity together with the main radiator, the electric light source shell is provided with an inlet air hole and an outlet air hole at left and right ends of the heat dissipation channel; the luminescent device comprises a bottom luminous module and a bottom lamp cover; the bottom luminous module is installed on the mounting surface and the bottom lamp cover is installed at the bottom of the main radiator. ### Claim 8 (depends on 7) The high-power electric light source as in claim 7, wherein the heat dissipation device further comprises a second temperature control switch arranged on the main radiator and on the right side of the center line, the second temperature control switch electrically connected to the driving power supply and is used for controlling the output power of the driving power supply. ### Claim 9 (depends on 7) The high-power electric light source as in claim 7, wherein the bottom luminous module comprises a bottom lamp panel and a lamp bead, and the bottom lamp cover comprises a lens structure for reducing the luminous angle of the bottom luminous module. ### Claim 10 (depends on 9) The high-power electric light source as in claim 9, wherein the bottom lamp cover further comprises a boss which is circumferentially arranged around the lens structure, and a horizontal position of a lower surface of the boss is lower than that of a lower surface of the lens structure. ### Claim 11 (depends on 7) The high-power electric light source as in claim 7, wherein the electric light source shell has a base part connected to the main radiator and a head connected to the base part and extending upward, and the high-power electric light source further comprises a reinforced rib connected to the head and protruding outward on the outer wall of the head. ### Claim 12 (depends on 7) The high-power electric light source as in claim 7, wherein the electric light source shell has an accommodating chamber, and the driving power supply is installed in the accommodating chamber, the accommodating chamber is filled with pouring sealant for heat conduction, the driving power supply is electrically connected to the luminescent device and the radiator fan, or/and the driving power supply is electrically connected to the standby fan. ### Claim 13 (depends on 12) The high-power electric light source as in claim 12, wherein the high-power electric light source further comprises at least a power radiator connected to the pouring sealant, and the power radiator extends the pouring sealant and extends to the heat dissipation cavity. ### Claim 14 (depends on 12) The high-power electric light source as in claim 12, wherein the high-power electric light source further comprises a fixing plate that is provided between the main radiator and the electric light source shell, and installed on the heat dissipation device or the electric light source shell. ### Claim 15 (depends on 14) The high-power electric light source as in claim 14, wherein a lower side of the fixing plate is provided with a fixing slot suitable for the radiator fan, and the radiator fan is arranged in the fixing slot. ### Claim 16 (depends on 14) The high-power electric light source as in claim 14, wherein the high-power electric light source further comprises a positioning column extending downward arranged on the lower side of the fixing plate, the main radiator is provided with a positioning hole suitable for the positioning column, and the positioning column is inserted in the positioning hole. ### Claim 17 (depends on 14) The high-power electric light source as in claim 14, wherein the fixing plate is provided with a plurality of through holes which are connected up and down and used for radiating or threading. ### Claim 18 (depends on 14) The high-power electric light source as in claim 14, wherein the high-power electric light source further comprises at least one wiring board mounted on the fixing plate for electrically connecting the radiator fan, the driving power supply, the fuse, or one or more of the first temperature control switches. ### Claim 19 (depends on 14) The high-power electric light source as in claim 14, wherein a winding column in a curved hook shape is convexly arranged on the fixing plate. ### Claim 20 (depends on 14) The high-power electric light source as in claim 14, wherein the high-power electric light source further comprises a back luminous module, the back luminous module comprises a back-lamp cover, a back-lamp panel for emitting light towards the upper part and arranged on the fixing plate and a reflecting cup structure arranged on the electric light source shell, and the back lamp cover is fixed on the top of the reflecting cup structure. ### Claim 21 (depends on 14) The high-power electric light source as in claim 14, wherein the high-power electric light source further comprises a control socket which is connected to the bottom lamp cover and is electrically connected to the driving power supply, the control socket is provided with a control interface which is used for receiving 0-10V, PWM or resistance signal to realize the dimming of the luminescent device.