H05K7/20981

Heat receiver having an annular flow path and manufacturing method of the same

A heat receiver is configured to cool down a liquid crystal panel in a rectangular shape used for a liquid crystal projector that causes light to be transmitted through the liquid crystal panel and thereby displays a projected image. The heat receiver includes a window portion in a rectangular shape formed to come into contact with an outer periphery of the liquid crystal panel; a flat annular flow path formed on an outer circumferential side of the window portion to surround the window portion and configured to have a narrowed portion in a region along one side of the window portion; and two supply discharge flow paths formed in a neighborhood of two corners of the window portion arranged across the narrowed portion to supply and discharge a heat exchange medium.

Projector with polarization element cooled with cooling liquid
10996549 · 2021-05-04 · ·

A projector includes a light source, a light modulation device configured to modulate light emitted from the light source, a polarization element arranged to one of a light incident side and a light exiting side of the light modulation device, a projection device configured to project the light modulated by the light modulation device, a casing in which the polarization element is arranged and whose inside is filled with a cooling liquid, and a circulation device configured to circulate the cooling liquid in the casing onto the polarization element. The cooling liquid circulates along a first direction on the light incident side of the polarization element. The cooling liquid circulates along a second direction opposite to the first direction on the light exiting side of the polarization element.

Liquid cooled heat dissipation device

A liquid cooled heat dissipation device including a housing, at least two cooling fin modules, an input pipe, and an output pipe is provided. The housing has an accommodation space. The at least two cooling fin modules are disposed in the accommodation space. The input pipe is disposed on the top plate, the front plate, the rear plate, or one of the side plates of the housing and communicates with the accommodation space. The output pipe is disposed on the top plate, the front plate, the rear plate, or the other one of the side plates of the housing and communicates with the accommodation space. The at least two cooling fin modules have different arrangement densities and different fin thicknesses.

Projector light valve module with liquid lens

A projector light valve module with a liquid lens includes: a structural support, an LCD light valve, and an incident lens, wherein the incident lens is connected to a first end of the structural support; a first cavity is sealed and is formed by the incident lens, the structural support and the LCD light valve, and the first cavity is filled with transparent cooling liquid; similarly, the emergent lens is connected to a second end of the structural support, to form a second cavity and a second liquid lens. The present invention combines heat dissipation and optics, and provides more efficient lighting and better imaging quality through optical and heat dissipation effects of the first and second liquid lenses, thereby achieving better heat dissipation, and better user experience and satisfaction.

Fanless cooling system for full display mirror
10746959 · 2020-08-18 · ·

A display mirror assembly for a vehicle includes a housing. An electro-optic element may be operably coupled with the housing. A circuit board may be adjacent the electro-optic element. An electrostatic fluid accelerator may be adjacent the circuit board and may be configured to move ions within the housing. An actuator device may be disposed on the housing and may be operably coupled with the electro-optic element. The actuator device may be adjustable to tilt the electro-optic element in one direction, thereby moving the electro-optic element to an off-axis position which approximately simultaneously changes an activation state of a display module. The actuator device may be also adjustable to tilt the electro-optic element in another direction, thereby moving the electro-optic element to an on-axis position which approximately simultaneously changes the activation state of the display module.

Self-priming thermosyphon
10631434 · 2020-04-21 · ·

A thermosyphon having an evaporator, a condenser having a condenser liquid pool accumulated at the bottom thereof creating a condenser liquid pool surface, a vapor tube fluidly coupling the evaporator to the condenser, and a liquid tube fluidly coupling the condenser to the evaporator, wherein the liquid tube apex is above the condenser liquid pool surface, thereby trapping vapor and preventing liquid from passing from the condenser to the evaporator. The application of heat to the evaporator increases the total system internal temperature and pressure causing condensation of the vapor in the liquid tube. As the liquid level in the liquid tube increases above the lower interior surface of the apex of the liquid tube, the liquid tube is primed thereby creating the pressure head needed to overcome the hydrodynamic losses inside the thermosyphon. Various embodiments allow passive start-up, regardless of the initial distribution of liquid inside the thermosyphon.

HEAT RECEIVER AND MANUFACTURING METHOD OF THE SAME

A heat receiver is configured to cool down a liquid crystal panel in a rectangular shape used for a liquid crystal projector that causes light to be transmitted through the liquid crystal panel and thereby displays a projected image. The heat receiver includes a window portion in a rectangular shape formed to come into contact with an outer periphery of the liquid crystal panel; a flat annular flow path formed on an outer circumferential side of the window portion to surround the window portion and configured to have a narrowed portion in a region along one side of the window portion; and two supply discharge flow paths formed in a neighborhood of two corners of the window portion arranged across the narrowed portion to supply and discharge a heat exchange medium.

Power inverter with liquid cooled busbars
10523094 · 2019-12-31 · ·

A power inverter with liquid cooled busbars includes multiple AC power outlets. The power inverter also includes a busbar having a busbar arm connected to one of the AC power outlets, and a busbar leg having a first end connected to the busbar arm. The busbar leg is at least partially situated in a cooling channel of the power inverter, which may be a built-in cooling channel or a detachable cooling channel. A second end of the busbar leg extends beyond the cooling channel and is exposed for electrical connection.

Housing for an Electric or Electronic Device

A housing includes a cup-shaped, plastic housing case; a cooling channel guided in the housing case for fluid cooling of an electric or electronic device situated in an interior of the housing case; and a planar shielding body integrated into the housing case and traversing walls of the housing case for shielding from electromagnetic radiation. The shielding body is a metallic wire cage or trough. The cooling channel is a metallic tubing. The shielding body and the cooling channel are connected to form a frame-like, pre-assembled assembly. The pre-assembled assembly, consisting of the shielding body and the cooling channel, is extrusion-coated with a plastic or encapsulated in a plastic to form the housing case.

LIQUID COOLING SYSTEM
20240090167 · 2024-03-14 ·

The present disclosure provides a liquid cooling system for dissipating heat from a heat source, including a liquid cooling module and a liquid leakage detecting module. The liquid cooling module includes a liquid cooling component. The liquid cooling component includes a liquid cooling plate, a liquid supply pipeline and a liquid return pipeline. The liquid supply pipeline and the liquid return pipeline are in communication with the liquid cooling plate receptively. The liquid leakage detecting module includes a liquid leakage detecting device, a monitoring device and a main wire. The liquid leakage detecting device includes a hub and a plurality of liquid leakage detection branches. The liquid leakage detection branches are electrically connected to the hub in parallel, and are provided in the liquid supply pipeline and the liquid return pipeline respectively. The main wire electrically connects the hub to the monitoring device.