# US 10,768,677 B2 · Heat dissipating device having colored lighting and persistence effect > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,768,677 B2 - Document ID: US10768677B2 - Status: Granted - Kind: B2 - Application number: 15/952,545 - Filed: 2018-04-13 - Published: 2019-10-17 - Granted: 2020-09-08 - Earliest claimed: 2018-04-13 - Assignees: Cooler Master Technology Inc. - Applicants: Cooler Master Technology Inc. - Inventors: Roger Lin; Tzyy-Ing Wang - Web page: https://patentgrep.com/patent/US10768677B2 ## CPC - G06F 1/206: {comprising thermal management} - F04D 13/0673: {the motor being of the inside-out type} - F04D 29/005: {Decorative aspects, i.e. features which have no effect on the functioning of the pump} - F04D 29/426: {especially adapted for liquid pumps} - F04D 29/628: {especially adapted for liquid pumps} - F21V 23/003: {the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array} - F21V 33/0092: {with heating or cooling devices} - G02B 6/0068: {Arrangements of plural sources, e.g. multi-colour light sources} - G02B 6/0075: {Arrangements of multiple light guides (G02B6/0028 takes precedence)} - G02B 6/0086: {Positioning aspects} - H05K 7/20172: {Fan mounting or fan specifications} - H05K 7/20209: {Thermal management, e.g. fan control} - H05K 7/20263: {Heat dissipaters releasing heat from coolant} - H05K 7/20272: {Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds} - H05K 7/20281: {Thermal management, e.g. liquid flow control} - F21V 33/0096: {Fans, e.g. ceiling fans (forced cooling of lighting devices characterised by the arrangement of fans F21V29/67)} - G02B 6/0011: {the light guides being planar or of plate-like form} - G06F 1/20: Cooling means - G06F 2200/201: Cooling arrangements using cooling fluid - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A heat dissipating device includes a bottom assembly, a first light guide positioned on the bottom assembly, a first light assembly positioned on the first light guide, and an outer cover positioned on the bottom assembly and at least partially enclosing the bottom assembly, the first light guide, and the first light assembly. The outer cover defines a first opening on a top surface thereof, at least a portion of the first light guide is received in the first opening, and light from the first light assembly is emitted from the heat dissipating device through the exposed portion of the first light guide. ## Claims ### Claim 1 A heat dissipating device, comprising: a bottom assembly; a first light guide positioned on the bottom assembly; a first light assembly including one or more light sources and positioned on the first light guide; and an outer cover positioned on the bottom assembly, the first light guide, and the first light assembly, the outer cover at least partially enclosing the bottom assembly, the first light guide, and the first light assembly, wherein: the outer cover defines a first opening on a top surface of the outer cover, an upper surface the first light guide is received in the first opening from within the outer cover, and light from the first light assembly is emitted from the heat dissipating device through the upper surface of the first light guide exposed through the first opening. ### Claim 2 (depends on 1) The heat dissipating device of claim 1, wherein the bottom assembly includes a pumping unit positioned on a cooling device and fluidly coupled thereto, wherein the pumping unit includes: an inlet unit fluidly coupled to an inlet of the heat dissipating device, a base including a stator portion and a rotor portion, wherein: the inlet unit is positioned on the base, and the inlet unit and the base cooperatively define a pump chamber, the pump chamber including the stator portion and the rotor portion, and the pump chamber being fluidly coupled to the inlet unit. ### Claim 3 (depends on 2) The heat dissipating device of claim 2, wherein the rotor portion includes a plurality of blades that are curved opposite to a direction of rotation of the rotor portion. ### Claim 4 (depends on 2) The heat dissipating device of claim 2, wherein the rotor portion includes a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the plurality of blades and the top circular plate have contrasting colors with respect to each other. ### Claim 5 (depends on 2) The heat dissipating device of claim 2, wherein the rotor portion includes a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the top circular plate has a contrasting color with respect to each of an inner circumferential surface of the inlet unit and a top surface of a rim of the inlet unit. ### Claim 6 (depends on 2) The heat dissipating device of claim 2, wherein the rotor portion includes a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the plurality of blades have a contrasting color with respect to each of an inner circumferential surface of the inlet unit and a top surface of a rim of the inlet unit. ### Claim 7 (depends on 2) The heat dissipating device of claim 2, wherein the cooling device includes: a base plate configured to dissipate heat and including a heat exchanger; a sealing cover coupled to the base plate and at least partially enclosing the heat exchanger, the sealing cover and the base plate defining a heat exchange chamber that includes the heat exchanger, the sealing cover defining a second opening positioned above the cooling device; and a cover plate coupled to the base plate, the cover plate including: an outlet of the heat dissipating device, a third opening in fluid communication with the heat exchange chamber through the second opening, and a fourth opening defined adjacent the outlet, wherein the fourth opening is in fluid communication with the outlet, and is in fluid communication with the heat exchange chamber through the second opening. ### Claim 8 (depends on 2) The heat dissipating device of claim 2, further comprising a liquid guide disposed in the inlet unit and configured to guide liquid to the pumping chamber. ### Claim 9 (depends on 1) The heat dissipating device of claim 1, wherein: the first light guide includes a circular protrusion on the upper surface of the first light guide, the circular protrusion is received in the first opening from within the outer cover; and the first light assembly is annular and disposed about the circular protrusion. ### Claim 10 (depends on 1) The heat dissipating device of claim 1, wherein: the outer cover includes an elongated slot defined on an outer circumferential surface of the outer cover, and the first light guide includes a curved protrusion extending radially from an outer circumferential end of the first light guide, wherein: the curved protrusion is received in the elongated slot, and an end surface of the curved protrusion is flush with the outer circumferential surface of the outer cover. ### Claim 11 (depends on 10) The heat dissipating device of claim 10, further comprising a second light guide disposed in the bottom assembly, wherein the outer cover defines a second opening and a third opening on the outer circumferential surface of the outer cover, and the second light guide is received in the second opening and the third opening. ### Claim 12 (depends on 11) The heat dissipating device of claim 11, wherein the second light guide includes a first curved part and a second curved part each received in a corresponding one of the second opening and the third opening, and wherein radially outer surfaces of each of the first and second curved parts are flush with the outer circumferential surface of the outer cover. ### Claim 13 (depends on 11) The heat dissipating device of claim 11, further comprising a second light assembly disposed on the second light guide. ### Claim 14 (depends on 1) The heat dissipating device of claim 1, further comprising a glass cover positioned between the bottom assembly and the first light guide. ### Claim 15 (depends on 1) The heat dissipating device of claim 1, wherein the outer cover is at least in part translucent. ### Claim 16 (depends on 1) The heat dissipating device of claim 1, further comprising a processor controlling a first light source in the first light assembly to turn on and off at a first frequency determined at least based on a rotational speed of a plurality of blades of the heat dissipating device. ### Claim 17 (depends on 16) The heat dissipating device of claim 16, wherein the processor determines the first frequency in accordance one of equations f = R 60 × N × C , f > R 60 × N × C ⁢ ⁢ and ⁢ ⁢ f < R 60 × N × C , wherein f is the first frequency, R is the rotational speed of the plurality of blades in revolutions per minute, N is number of the plurality of blades, and C is a natural number. ### Claim 18 (depends on 17) The heat dissipating device of claim 17, further comprising an input receiving a first input to enable the processor to change a value of C in accordance with an external input or a predetermined value. ### Claim 19 (depends on 18) The heat dissipating device of claim 18, wherein the processor updates the first frequency f based on a change in the value of C according to one of the equations. ### Claim 20 (depends on 18) The heat dissipating device of claim 18, wherein the rotational speed of the plurality of blades is varied based on a second input. ### Claim 21 (depends on 20) The heat dissipating device of claim 20, wherein the processor updates the first frequency based on a change in the rotational speed of the plurality of blades. ### Claim 22 (depends on 16) The heat dissipating device of claim 16, wherein the processor is configured, while maintaining the rotational speed of the plurality of blades, to control the first light source to turn on and off at a frequency which is higher or lower than the first frequency. ### Claim 23 (depends on 16) The heat dissipating device of claim 16, wherein the first light assembly comprises a second light source configured to emit light having a color different from that of the first light source, and wherein the processor independently controls at least one of the first light source and the second light source. ### Claim 24 (depends on 23) The heat dissipating device of claim 23, wherein the processor controls at least one of the first light source and the second light source to turn on and off at the first frequency for a first time period and controls at least one of the first and second light sources to turn on and off at a second frequency for a second time period, wherein the first and second time periods are successive. ### Claim 25 (depends on 23) The heat dissipating device of claim 23, wherein, during a same period, the processor controls the first light source to turn on and off at the first frequency and controls the second light source to turn on and off at a second frequency different from the first frequency. ### Claim 26 (depends on 25) The heat dissipating device of claim 25, wherein the first frequency is equal to R/60×N×C, wherein R is the rotational speed of the plurality of blades in revolutions per minute, N is number of the plurality of blades, and C is a natural number. ### Claim 27 (depends on 25) The heat dissipating device of claim 25, wherein none of the first frequency and the second frequency is equal to R/60×N×C, wherein which R is the rotational speed in revolutions per minute, N is number of the plurality of blades, and C is a natural number. ### Claim 28 (depends on 23) The heat dissipating device of claim 23, wherein, during a same period, the processor controls the first and second light sources to turn on and off at the first frequency. ### Claim 29 A heat dissipating device, comprising: a bottom assembly; a first light guide positioned on the bottom assembly, the first light guide including a circular protrusion on an upper surface of the first light guide and two curved protrusions extending radially outward from a circumferential edge of the first light guide; a first light assembly positioned on the first light guide; and an outer cover positioned on the bottom assembly and at least partially enclosing the bottom assembly, the first light guide, and the first light assembly, wherein: the outer cover defines a first opening on a top surface of the outer cover, and defines a second opening and a third opening on an outer circumferential surface of the outer cover and adjacent the top surface, at least a portion of the first light assembly is received in the first opening, the two curved protrusions are received in a corresponding one of the second opening and the third opening, and light from the first light assembly is emitted from the heat dissipating device through the portion of the first light assembly in the first opening and through the two curved protrusions. ### Claim 30 (depends on 29) The heat dissipating device of claim 29, wherein end surfaces of the two curved protrusion are flush with the outer circumferential surface of the outer cover. ### Claim 31 (depends on 29) The heat dissipating device of claim 29, wherein a top surface of the circular protrusion is flush with the top surface of the outer cover. ### Claim 32 (depends on 29) The heat dissipating device of claim 29, wherein the bottom assembly includes a pumping unit positioned on a cooling device and fluidly coupled thereto, wherein the pumping unit includes: an inlet unit fluidly coupled to an inlet of the heat dissipating device; and a base including a stator portion and a rotor portion, the rotor portion including a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the plurality of blades and the top circular plate have contrasting colors with respect to each other. ### Claim 33 (depends on 29) The heat dissipating device of claim 29, wherein the bottom assembly includes a pumping unit positioned on a cooling device and fluidly coupled thereto, wherein the pumping unit includes: an inlet unit fluidly coupled to an inlet of the heat dissipating device; and a base including a stator portion and a rotor portion, the rotor portion including a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the top circular plate has a contrasting color with respect to each of an inner circumferential surface of the inlet unit and a top surface of a rim of the inlet unit. ### Claim 34 (depends on 29) The heat dissipating device of claim 29, wherein the bottom assembly includes a pumping unit positioned on a cooling device and fluidly coupled thereto, wherein the pumping unit includes: an inlet unit fluidly coupled to an inlet of the heat dissipating device; and a base including a stator portion and a rotor portion, the rotor portion including a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the plurality of blades have a contrasting color with respect to each of an inner circumferential surface of the inlet unit and a top surface of a rim of the inlet unit. ### Claim 35 A heat dissipating device, comprising: a bottom assembly; a first light guide positioned on the bottom assembly and including a circular protrusion on an upper surface of the first light guide and two curved protrusions extending radially from an outer circumferential end of the first light guide; a first light assembly positioned on the first light guide; a second light guide including a first curved part and a second curved part each disposed in the bottom assembly; a second light assembly disposed on the second light guide; and an outer cover positioned on the bottom assembly and at least partially enclosing the bottom assembly, the first light guide, the first light assembly, the second light guide, and the second light assembly, wherein: the outer cover defines a first opening on a top surface of the outer cover, a second opening and a third opening on an outer circumferential surface of the outer cover and adjacent the top surface, and a fourth opening and a fifth opening on the outer circumferential surface of the outer cover and adjacent a lower end of the outer cover, at least a portion of the first light assembly is received in the first opening, the two curved protrusions are received in a corresponding one of the second opening and the third opening, the first and second curved parts are received in a corresponding one of the fourth opening and the fifth opening, and light from the first light assembly is emitted from the heat dissipating device through the portion of the first light assembly in the first opening, through the two curved protrusions, and through the first and second curved parts. ### Claim 36 (depends on 35) The heat dissipating device of claim 35, wherein radially outer surfaces of each of the first and second curved parts are flush with the outer circumferential surface of the outer cover. ### Claim 37 (depends on 35) The heat dissipating device of claim 35, wherein end surfaces of the two curved protrusion are flush with the outer circumferential surface of the outer cover. ### Claim 38 (depends on 35) The heat dissipating device of claim 35, wherein a top surface of the circular protrusion is flush with the top surface of the outer cover. ### Claim 39 (depends on 35) The heat dissipating device of claim 35, wherein the bottom assembly includes a pumping unit positioned on a cooling device and fluidly coupled thereto, wherein the pumping unit includes: an inlet unit fluidly coupled to an inlet of the heat dissipating device; and a base including a stator portion and a rotor portion, the rotor portion including a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the plurality of blades and the top circular plate have contrasting colors with respect to each other. ### Claim 40 (depends on 35) The heat dissipating device of claim 35, wherein the bottom assembly includes a pumping unit positioned on a cooling device and fluidly coupled thereto, wherein the pumping unit includes: an inlet unit fluidly coupled to an inlet of the heat dissipating device; and a base including a stator portion and a rotor portion, the rotor portion including a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the top circular plate has a contrasting color with respect to each of an inner circumferential surface of the inlet unit and a top surface of a rim of the inlet unit. ### Claim 41 (depends on 35) The heat dissipating device of claim 35, wherein the bottom assembly includes a pumping unit positioned on a cooling device and fluidly coupled thereto, wherein the pumping unit includes: an inlet unit fluidly coupled to an inlet of the heat dissipating device; and a base including a stator portion and a rotor portion, the rotor portion including a plurality of blades disposed on a top circular plate of the rotor portion, and wherein the plurality of blades have a contrasting color with respect to each of an inner circumferential surface and a top surface of a rim of the inlet unit. ### Claim 42 A heat dissipating device, comprising: a bottom assembly; a first light guide positioned on the bottom assembly; a first light assembly positioned on the first light guide; and an outer cover positioned on the bottom assembly and at least partially enclosing the bottom assembly, the first light guide, and the first light assembly, wherein: the outer cover defines a first opening on a top surface of the outer cover, at least a portion of the first light guide is received in the first opening, and light from the first light assembly is emitted from the heat dissipating device through the portion of the first light guide exposed by the first opening, the bottom assembly includes: an inlet unit fluidly coupled to an inlet of the heat dissipating device; and a base including a stator portion and a rotor portion, the rotor portion including a plurality of blades disposed on a top circular plate of the rotor portion, and wherein two of (1) the plurality of blades, (2) an inner circumferential surface of the inlet unit and a top surface of a rim of the inlet unit, and (3) the top circular plate have contrasting colors with respect to each other.