# US 2019/0316752 A1 · Component housing of a vehicle headlight > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0316752 A1 - Document ID: US20190316752A1 - Status: Published application - Kind: A1 - Application number: 16/080,743 - Filed: 2017-02-22 - Published: 2019-10-17 - Earliest claimed: 2016-03-03 - Assignees: ZKW Group GmbH - Applicants: Zkw Group GmbH - Inventors: Matthias MAYER; Markus REINPRECHT; Stefan MITTERLEHNER - Web page: https://patentgrep.com/patent/US20190316752A1 ## CPC - F21S 41/675: by moving reflectors - F21S 41/39: Attachment thereof (achieving variable light distribution by movable reflectors F21S41/675) - F21S 45/47: Passive cooling, e.g. using fins, thermal conductive elements or openings - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS ## Abstract The invention relates to a vehicle headlight comprising at least one light source, at least one projection optical system, and an electronic component (1) with an active optical surface on a front face, an active thermal surface, and electric contacts. A component housing (110), which is made of a housing shell (120) and a housing cover (150), a first printed circuit board (130) and at least one first spacer (160) are also contained. The component housing (110) at least partly receives the electronic component (1). The housing shell (120) comprises an assembly position for the electronic component (1) and a component opening (121) which is located in the region of the assembly position, in which the electronic component (1) is arranged, and by means of which the active optical surface of the electronic component (1) can be accessed. The electronic component (1) can be connected to the first printed circuit board (130) via the electric contacts of the electronic component. The housing shell (120) can be closed by the housing cover (150). The at least one first spacer (160) is arranged between a paired support point and the housing cover (150), wherein the support point lies on the first printed circuit board (130), and at least one connection element is provided for producing a connection between the housing cover (150) and the housing shell (120), said connection element being introducible preferably along an axis which runs transversely to the printed circuit board (130). ## Claims ### Claim 1 A vehicle headlight (300) comprising: at least one light source (302); at least one projection optical system (304); and an electronic component (1) with an active optical surface (11) on a front face, an active thermal surface (12), and electric contacts (13) on a rear face, facing away from the front face, wherein the light source (302) is designed to generate a light beam which is directed towards the active optical surface (302) and is reflected there in the direction of the at least one projection optical system (304) and forms a light pattern in front of the vehicle, wherein a component housing (110, 210), which is made of a housing shell (120, 220) and a housing cover (150, 250), a first printed circuit board (130, 230) and at least one first spacer (160, 260) are also contained, and the component housing (110, 210) at least partly receives the electronic component (1), wherein: the housing shell (120, 220) comprises an assembly position for the electronic component (1) and a component opening (121, 221) which is located in the region of the assembly position, in which the electronic component (1) is arranged, and by means of which the active optical surface (11) of the electronic component (1) can be accessed, the electronic component (1) can be connected to the first printed circuit board (130, 230) via the electric contacts of the electronic component, the housing shell (120, 220) can be closed by the housing cover (150, 250), the at least one first spacer (160, 260) is arranged between a paired support point (161, 262) and the housing cover (150, 250), wherein the support point (161, 262) lies on the first printed circuit board (130, 230) or on a heat sink (240), which is arranged on the first printed circuit board (130, 230) and on the active thermal surface (12) of the electronic component (1), wherein at least one connection element (170, 270) is provided for producing a connection between the housing cover (150, 250) and the housing shell (120, 220), said connection element being introducible preferably along an axis which runs transversely to the first printed circuit board (130, 230). ### Claim 2 (depends on 1) The vehicle headlight (300) according to claim 1, wherein the first printed circuit board (130, 230) comprises a heat sink opening (131, 231), by means of which the active thermal surface (12) of the electronic component (1) can be accessed. ### Claim 3 (depends on 1) The vehicle headlight (300) according to claim 1, wherein at least the first spacer (160, 260) is springy and preferably has a substantially hollow-cylindrical form, wherein the connection element (170, 270) runs preferably through the hollow-cylindrical form and the axis of the connection element (170, 270) is preferably coincident with the axis of the first spacer (160, 260). ### Claim 4 (depends on 1) The vehicle headlight (300) according to claim 1, wherein at least one second printed circuit board (132, 232) and at least one adapter (133, 233), which preferably comprises a flexible printed circuit board and which connects the printed circuit boards (130, 132, 230, 232), are arranged between the first printed circuit board (130, 230) and the housing cover (150, 250). ### Claim 5 (depends on 1) The vehicle headlight (300) according to claim 1, wherein an assembly base (15) is arranged between the first printed circuit board (130, 230) and the electronic component (1), whereby the electric contacts (13) of the electronic component (1) are connected to the first printed circuit board (130, 230). ### Claim 6 (depends on 1) The vehicle headlight (300) according to claim 1, wherein at least one second spacer (151, 251) is inserted between the housing cover (150, 250) and the first spacer (160, 260), wherein the second spacer (150, 251) preferably forms a common component with the housing cover (150, 250) and preferably has a substantially hollow-cylindrical form, wherein the connection element (170, 270) preferably runs through the hollow-cylindrical form and the axis of the connection element (170, 270) is preferably coincident with the axis of the second spacer (151, 251). ### Claim 7 (depends on 1) The vehicle headlight (300) according to claim 1, wherein at least one third spacer is arranged between the housing shell (120, 220) and the first printed circuit board (130, 230), wherein the third spacer preferably forms a common component with the housing shell (120, 220) and preferably has a substantially hollow-cylindrical form, wherein the connection element (170, 270) preferably runs through the hollow-cylindrical form and the axis of the connection element (170, 270) is preferably coincident with the axis of the third spacer. ### Claim 8 (depends on 1) The vehicle headlight (300) according to claim 1, wherein at least one fourth spacer (225) is arranged between the heat sink (240) and the first printed circuit board (130, 230), wherein the fourth spacer (225) is preferably springy and preferably has a substantially hollow-cylindrical form, wherein the connection element (170, 270) preferably runs through the hollow-cylindrical form and the axis of the connection element (170, 270) is preferably coincident with the axis of the fourth spacer (225). ### Claim 9 (depends on 6) The vehicle headlight (300) according to claim 6, wherein at least one fifth spacer (152, 252) is arranged between a second spacer (151, 251) and the housing shell (120, 220), wherein the first spacer (160, 260) is preferably arranged on the outer surface of the fifth spacer (152, 252) and the fifth spacer (152, 252) preferably forms a common component with the housing cover (150, 250) and preferably has a substantially hollow-cylindrical form, wherein the connection element (170, 270) preferably runs through the hollow-cylindrical form and the axis of the connection element (170, 270) is preferably coincident with the axis of the fifth spacer (152, 252). ### Claim 10 (depends on 4) The vehicle headlight (300) according to claim 4, wherein at least one sixth spacer (253) is arranged between the housing cover (150, 250) and second printed circuit board (132, 232), wherein the sixth spacer (253) preferably forms a common component with the housing cover (150, 250) and preferably has a substantially hollow-cylindrical form, wherein the connection element (170, 270) preferably runs through the hollow-cylindrical form and the axis of the connection element (170, 270) is preferably coincident with the axis of the sixth spacer (253). ### Claim 11 (depends on 1) The vehicle headlight (300) according to claim 1, wherein at least one connection element (170, 270) is a screw, a plug-in connection or a bonded connection, wherein the connection element (170, 270) is preferably substantially cylindrical. ### Claim 12 (depends on 1) The vehicle headlight (300) according to claim 1, wherein the heat sink (240) is inserted into a cooling line (241) which has an inlet (242) and an outlet (243) and through which a cooling medium can be passed, and the housing shell (220) preferably has an inlet opening (223) and an outlet opening (224), wherein the inlet (242) of the cooling line (241) is arranged in the inlet opening (223) and the outlet (243) of the cooling line (241) is arranged in the outlet opening (224). ### Claim 13 (depends on 1) The vehicle headlight (300) according to claim 1, wherein at least one spacer bracket (122, 222) is comprised in the assembly region on the outer face of the housing shell (120, 220) and enables access to the active optical surface (11) of the electronic component (1) inserted into the component opening (121, 221). ### Claim 14 (depends on 1) The vehicle headlight (300) according to claim 1, wherein the electronic component (1) is an analogue or digital micromirror array. ### Claim 15 (depends on 1) The vehicle headlight (300) according to claim 1, wherein a holder (2) is also comprised, wherein the holder (2) can be connected to the housing shell (120, 220) at least by the connection element (170, 270). ### Claim 16 (depends on 15) The vehicle headlight (300) according to claim 15, wherein the housing shell (120, 220) is connected to the holder (2) in such a way that the spacer bracket (122, 222) is exposed by means of a recess (23) in the holder (2). ### Claim 17 (depends on 15) The vehicle headlight (300) according to claim 15, wherein the electronic component (1) has at least one corresponding adjustment opening (14) and the holder (2) has at least one adjustment pin (22) for alignment with the adjustment opening (14) in the electronic component (1). ### Claim 18 (depends on 15) The vehicle headlight (300) according to claim 15, wherein the holder (2) comprises a holder opening (21), wherein the active optical surface (11) of the electronic component (1) can be accessed by means of the holder opening (21).