5results about How to "Avoid local hotspots" patented technology

The invention relates to the technical field of carbon dioxide emission reduction, and discloses a multi-stage uniform-temperature phase change absorption tower for capturing high-concentration carbon dioxide, the multi-stage uniform-temperature phase change absorption tower comprises an absorption tower, a plurality of inlets, filler layers and redistributors are distributed on the absorption tower from top to bottom, and the inlets are sequentially a fourth inlet, a third inlet, a second inlet and a first inlet from top to bottom; the bottom of the split-phase tank is communicated with the bottom of the absorption tower through a pipeline, and the top of the split-phase tank is communicated with the third inlet and the first inlet through pipelines; the heat exchanger is communicated with the bottom of the split-phase tank through a rich liquid pump, and the heat exchanger is communicated with the fourth inlet and the second inlet through pipelines; the desorption tower is connected with a reboiler, and the desorption tower is connected with the heat exchanger through a pipeline. An interstage cooling process is replaced by a multi-stage shunting process, and uniform temperature distribution in the whole absorption tower is realized by adjusting the shunting proportion, so that local hot spots are avoided.

This invention discloses a light-controlled molecular heterogeneous thermal storage device, belonging to the field of solar energy storage technology. The device includes a detachably connected first and second shell, both with mirrored inner surfaces. The first shell houses a light source assembly containing a xenon lamp and a first filter; the second shell has a magnetically attachable second filter on its top and multiple circular flow heat exchange channels running through its sides. A rotatable heat storage layer is fitted around each channel, and the interior is filled with a molecular light-switching material. A liquid metal thermally conductive layer is filled between the heat storage layer and the heat exchange channels. This invention achieves switching between natural light and auxiliary light modes through a detachable structure, adapting to different lighting conditions and enabling all-day operation; the rotating heat storage layer and mirrored inner wall ensure uniform illumination, and the liquid metal ensures efficient heat transfer, thereby significantly improving the energy storage and release efficiency of the molecular light-switching material and the system's controllability.

This invention discloses a MEMS synthetic jet heat sink and array heat sink based on an asymmetric dual-diaphragm and a top-surface through-flow channel, comprising a PCB substrate, a silicon substrate, a first piezoelectric diaphragm, a second piezoelectric diaphragm, and a top frame. The lower surface of the PCB substrate is used for mounting to a heat source and is a complete plane; the silicon substrate is disposed on the PCB substrate, and a vibration cavity is formed within the silicon substrate; the first and second piezoelectric diaphragms are sealed and connected to the silicon substrate, and together enclose the vibration cavity; the two piezoelectric diaphragms are arranged asymmetrically relative to the PCB substrate; the top frame is disposed above the first and second piezoelectric diaphragms and connected to the PCB substrate; the top frame has an opening; the opening communicates with the vibration cavity, together forming a top-surface through-flow bidirectional channel, so that the air intake and exhaust processes of the heat sink are completed through the top-surface through-flow bidirectional channel.

The invention discloses a plug which comprises a main body, the main body is provided with two electricity taking contact pieces which are arranged at an interval so as to be suitable for being connected with a socket in an inserted mode to take electricity, and a shifting piece is arranged in the main body; the load wire is arranged on the main body and is suitable for being connected with a load electric appliance; the heat conduction structure is arranged in the main body to conduct heat generated by the load wire and the electricity taking contact piece to the main body; the thermal protector is arranged at the joint of the load wire and the electricity taking contact piece, and the thermal protector comprises a bimetallic strip; wherein the load wire and the electricity taking contact piece are connected and conducted through the shifting piece, and when the temperature of the bimetallic strip is larger than or equal to the preset temperature, displacement can be generated, and the shifting piece is driven to be disconnected. Through the heat conduction structure, the overall temperature rise of the plug is balanced, local overheating is avoided, accurate sensing of the overall temperature is realized, the overall structure is simplified, the cost is reduced, reliable protection is realized, the plug is adaptive to a high-power long-time power-on scene, fusing and firing are effectively prevented, and the safety and the service life of a high-power electric appliance or long-time power utilization are improved.

The utility model discloses a kind of heat-resistant infrared detector suitable for high-temperature environment, it is related to detector technical field, including base, the inside installation of base has detector main body;The utility model is cooperated by metal sheet, heat-resistant layer, metal shell and temperature sensor, by metal shell directly contacting external high-temperature environment, most of the radiation heat and convection heat are blocked, while relying on the high-temperature resistance characteristics of alloy itself to resist convection heat erosion, the heat-resistant layer of ceramic fiber cotton in its inside side is blocked by porous structure heat conduction path, reduces heat penetration rate, and the metal sheet outside detector main body is evenly dispersed by large-area contact, avoids local hot spot, while the temperature sensor between metal sheet and metal shell real-time monitoring temperature value, so as to can improve the heat resistance of device, delay its internal element aging, and then can prolong the service life of infrared detector.