123results about How to "Efficient thermal management" patented technology

The invention provides a control system for heat management of an electric vehicle. The control system is characterized in that the system comprises a refrigerant circulating system, a coolant circulating system and a battery pack temperature control system, wherein the refrigerant circulating system is communicated with the battery pack temperature control system via a water cooler, and the coolant circulating system is communicated with the battery pack temperature control system via a three-way water valve, so the three systems form an intercommunicating and circulating control system to control the temperature in the carriage and the working temperature of the electrical devices of the battery pack. The control system has the following positive effects: effective heat management can be carried out on each part of the electric vehicle; the problem of heating difficulty of the electric vehicle is solved by adopting the residual heat of the electrical devices in an economical and energy-saving manner; preheating and cooling of the power battery of the electric vehicle are well controlled; and the working temperature of the battery and electrical devices of the electric vehicle can be controlled, thus realizing complete heat system management of the electric vehicle.

Disclosed herein is a multi-cell battery pack having optimal temperature distribution throughout the battery pack and optimal air flow through the battery pack. Disclosed herein is a battery pack which provides optimal temperature distribution throughout the battery pack, wherein maximum cell temperature (Tmax) and temperature differential amongst all cells in the battery pack (ΔTcell) are optimized for efficient thermal management providing safety, improved performance and extended life of the battery pack and electrochemical cells. Also disclosed herein is a battery pack which provides optimal flow through the battery pack and minimal pressure drop (ΔP) throughout the battery pack.

A machine for passively removing heat generated by an electronic circuit board is disclosed. In a typical embodiment an electronic circuit board of any type or size is comprised of electronic components producing heat during operation. High thermal conductivity moldable pads applied to both sides of the electronic circuit board form a conductive pathway to transport heat away from electronic circuits and components. A two piece rigid heat sink having thin rigid conductive fins on its top base is coupled together forming a cavity into which the computer board / conductive pad assembly fits, thereby forming a second conductive pathway for heat transport away from board features. The thin rigid conductive fins collectively form yet a third conductive pathway for heat transport from the solid base of the two piece rigid heat sink. Exposure of the thin rigid conductive fins to cooler surrounding air provides convective transfer of heat from the fins to ambient air.

The invention discloses a distributed thermal management system for battery modules. The system comprises a plurality of battery modules. A thermal management control device is arranged on each battery module. Each thermal management control device comprises at least one temperature detection and control module, at least one heating module and at least one cooling module, wherein the temperature detection and control modules are used for detecting the temperatures of the battery modules in real time, comparing detected temperature values with a preset battery module working temperature value range, and correspondingly starting the heating modules for heating operation or starting the cooling module for cooling operation according to comparison results. According to the distributed thermal management system for the battery modules, thermal management over a plurality of batteries can be effectively realized, and the batteries can be ensured to work at normal working temperature all the time regardless of a high temperature environment or a low temperature environment, so that the overall working performance, long service life and stability of the batteries are ensured.

This invention relates to a fuel cell system comprising a fuel cell stack and a heat exchanger wrapped around the stack. The fuel cell stack comprises a fuel cell that operates at high elevated temperatures, such as a solid oxide fuel cell; the fuel cell can have a tubular configuration and comprise a pair of concentrically arranged electrode layers sandwiching a concentrically arranged electrolyte layer. The heat exchanger wraps around the fuel cell stack and comprises a flexible, thermally conductive first layer and an overlapping flexible, thermally conductive second layer spaced from the first layer. The first and second layers define adjacent annular oxidant supply and oxidant exhaust channels when wrapped around the stack. The exhaust channel is communicative with heated exhaust oxidant flowing from the stack, and the oxidant supply channel is communicative with supply oxidant that flows to the stack and is heated by heated exhaust oxidant in the adjacent oxidant exhaust channel and from heat radiating from the stack.

An externally vented brake rotor (EVR) core design, such as exemplified by U.S. Pat. No. 6,536,564, is being used to improve the function and effectiveness of a segmented brake rotor (SBR) through more efficient management of the thermal forces created in the segmented rotor. Specifically, segmented friction plates are attached to the EVR core to form friction surfaces. Air flow through the vents contacts the back side of the friction plates. At least one segmented friction plate may be provided with a tab or protrusion that engages a corresponding receiving recess in the carrier surface of the EVR core, thereby relieving lateral stress forces.

The invention relates to particle sensors that are capable of passively cooling high-powered optical sources within the sensor, thereby extending the optical source lifetime without requiring additional power. The sensor detects particles within a sample fluid by optical interaction of the optical source with flowing sample fluid in the sample chamber. Sample fluid that exits the sample chamber is directed into thermal contact with the optical source, thereby cooling the optical source. Sample fluid that has come into thermal contact with the optical source is continuously removed from the sensor to ensure the optical source is adequately cooled. A variety of elements are used to facilitate thermal contact between the optical source and sample fluid including plenums, heat sinks, and airflow cavities. Provided are related methods for cooling a one or more heat-producing device within a particle sensor.

Disclosed are an intelligent heat radiation control system and method. The intelligent heat radiation control system is arranged in a Godson server, a signal input end of the BMC (baseboard management controller) chip is connected with temperature sensors through an I2C multichannel switcher, a signal output end of the same is respectively connected with a watchdog and a hardware monitor, an output end of the hardware monitor is connected with fans through a selector switch chip, an output end of the watchdog is connected with a switch enabling signal input end of the selector switch chip, and the signal input end of the BMC chip is connected with pins. The intelligent heat radiation control method includes programming heat radiation control programs, setting level of each pin, detecting the level of the pins and calling the corresponding heat radiation control programs by the BMC chip, outputting low level by the watchdog to control disconnection of an access of the BMC chip and the control signal input ends of the fans, outputting high level by the selector switch chip to control all fans to operate in full speed, and reading temperature of measure points of the temperature sensors and adjusting rotation speed of the fans by the BMC chip. The intelligent heat radiation control system and method can intelligently identify types of server crates and automatically call heat radiation strategies corresponding to servers.

The invention provides a power cell heat management system and method and relates to the technical field of automobile power cells. The power cell heat management system comprises an acquisition module for real time acquisition of a current value and a cell temperature value output by the cell, a prediction module for predicting a cell heating state and determining if a heat radiation mode is started in advance according to the cell heating state, and first and second control modules respectively for controlling a cell heat radiation device. Through prediction of a cell state after preset time, the highest temperature after the predicted time can be predicted so that a cooling treatment process is carried out before cell heating and the cell temperature is in a reasonable temperature range. The power cell heat management system and method solves the problem that because of temperature hysteresis quality, the cell is cooled only after heating. The power cell heat management system and method realize effective cell heat management and guarantee high efficiency and long life operation of the cell.

The invention discloses a power battery heat management system based on flat plate heat pipes. The power battery heat management system comprises a module box body and a module box body top cover, wherein at least two individual battery group shells are placed in the module box body; at least two battery module groups formed by connecting individual batteries in series or in parallel are placed in each individual battery group shell; a flat plate heat pipe with a cooling system is arranged on the surface of each individual battery and is attached to the surface of the corresponding individual battery; cooling water circulates in the flat plate heat pipes. The power battery heat management system has the advantages of high efficiency, simple structure, stable and reliable operation, functional diversity and the like, is used for performing efficient heat management, including heat dissipation, heating, waste heat recycling and the like, on a power battery under various charge-discharge conditions, is applicable to various types of electric equipment driven by power batteries, and has wide market prospect.

Provided is an internal laser module, which has substantially the same high performance as a conventional internal-cooled laser module and also has the advantages of improved cost efficiency and manufacturability. In the internal-cooled laser module, laser subassemblies of a coaxial semiconductor laser are arranged on a thermoelectric cooler cooling substrate which is packaged in a box with appropriate patterns. The thermoelectric cooler cooling substrate has several other assembles. The technology and the design principle are suitable to increase the heat insulation and photoelectric parameters of the internal-cooled laser module, so as to increase or optimize the performance stability of a laser within the wide temperature dynamic range.

A power battery module based on air, hot pipe and phase-change material coupled cooling belongs to power battery modules. Each cylinder of a trifolium-type sleeve of the power battery module is inside provided with a plurality of cylindrical cell individuals in serial connection, and all cylinder battery groups have same quantity of the cell individuals in serial connection, and are in parallel connection. The power battery module reasonably combines the advantages of air cooling, hot-pipe cooling and phase-change material cooling, a hot pipe exports heat in cell bottoms of which the heat radiation property is relatively bad, a fin is used to export heat in the phase-change material and the hot pipe, and air natural convection or forced convection cooling is reasonably employed for assisting heat radiation of the fin. The battery module is obvious in battery temperature-controlling effect, simple and compact in structure and convenient for mounting and dismounting, and a large battery group can be formed by connecting multiple modules. A plurality of the power battery modules can be properly combined and designed for being applied to various electric equipment driven by power batteries, and wide market prospect is provided.

In one aspect, the present invention is a cooling assembly for an electrical component. The assembly includes a non-magnetic, thermally conducting spreader substrate, and at least one serpentine cooling tube disposed on and in thermal contact with the thermally conducting spreader substrate so that said substrate is cooled when the one or more serpentine cooling tubes are operating.

This invention relates to thermal management for removing heat generated by a heat source (110). This is done by a combination of a heat conducting member (120), which is thermally connected to the heat source in one end and to a remotely arranged heat sink (130) in the opposite end, and a synthetic jet actuator (140). The synthetic jet actuator is arranged to provide active cooling directly onto the heat source by generating and directing an air flow towards the heat source. The synthetic jet actuator comprises a resonator cavity housing (150) and an oscillating member (160). The oscillator member is arranged at least partly inside said resonator cavity. The combination of the heat conducting member and the synthetic jet actuator provides a highly efficient cooling.

An improved microelectronic assembly (100) and packaging method includes a device package for housing a semiconductor die or chip, (105), an array of passive electronic components (305-355) operating in cooperation with the flip chip semiconductor die (105) and housed inside the device package to decouple noise from input signals, and a heat spreader (195) disposed between a top surface of the semiconductor die (105) and a package cover (185). The semiconductor die (105) is configured as a flip chip die and the device package includes a package substrate (110) configured as a ball grid array. The improved microelectronic device (100) reduces parasitic inductance in electrical interconnections between the semiconductor die and an electrical system substrate (115) and reduces signal noise in mixed signal high frequency analog to digital converters operating at clock rates above 1 GHz.

The invention provides a flame retardant phase change microcapsule and its preparation method and use. The preparation method of the flame retardant phase change microcapsule comprises 1, mixing a phase change material, a monomer, a cross-linking agent and a fire retardant to obtain a first mixed solution, 2, dissolving an emulsifier and an initiator in water to obtain a second mixed solution, 3, mixing the first mixed solution and the second mixed solution through a micro-injection pump to obtain an emulsion and 4, carrying out a reaction process on the emulsion at a preset temperature to obtain the flame retardant phase change microcapsule. The preparation method realizes fast and effective preparation of the flame retardant phase change microcapsules with uniform particle size distribution, good monodispersity and ideal flame resistance.

The invention discloses an efficient heat radiation device for a lithium ion power battery. The device comprises a thermal-arrest panel which can tightly fit with the battery, a U-shaped heat pipe filled with a working fluid and a radiating fin group. A bent part in the middle of the U-shaped heat pipe is embedded in the thermal-arrest panel, and overhanging parts at two ends of the U-shaped heat pipe extend out of the thermal-arrest panel. The radiating fin group is tightly secured to the overhanging parts of the U-shaped heat pipe through holes. By the device, efficient heat radiation of the lithium ion battery can be realized, and temperature uniformity between single batteries of a battery pack is raised. Thus, usability of the battery pack is raised, the thermorunaway risk is reduced, and service life of the battery pack is prolonged. A phase-change heat-transfer element heat pipe with high heat transfer coefficient is adopted. The phase-change heat-transfer element heat pip has good heat storage and heat radiation properties and has high operation reliability. Meanwhile, the device provided by the invention has advantages of simple structure and low cost, and is energy-saving and environmentally friendly.

An optical circuit board including a top face, a bottom face, an optical layer buried between bottom and top faces, the optical layer being adapted to transmit optical signals, an opto-electronic component adapted to emit or receive light transmitted through the optical layer, a solid heat dissipative element adapted to dissipate heat generated at the opto-electronic component.

The invention relates to a single-substrate multi-chipset high-power LED (Light-Emitting Diode) encapsulation one-step bonding method, belonging to the technical field of multi-chipset high-power LED encapsulation. The invention solves the problem that the whole bonding time is too long as multiple chipsets are sequentially spliced in the traditional multi-chipset high-power LED encapsulation technology. The method comprises the following steps of: cleaning a substrate, a chip carrying platform, a multi-chip suction nozzle and a supporting platform; placing the substrate on the supporting platform; determining positions of chips to be bonded on the front of the substrate, and placing multiple chips to be bonded on the chip carrying platform corresponding to the positions of the chips to be bonded; uniformly coating soldering paste on the positions of the chips to be bonded by adopting screen printing, and then simultaneously picking up multiple chips to be bonded with the multi-chip suction nozzle; heating the back of the substrate, enabling multiple chips to align with the positions to be bonded and then attached to the soldering paste, continuously heating for 5-10s, naturally cooling to room temperature, and removing the multi-chip suction nozzle, thus the bonding process is completed. The invention provides an encapsulation bonding method.

An ultrasound system comprising a portable ultrasound probe and a docking station provides enhanced ultrasound functionality. One or more first transducer elements transmit an ultrasound signal toward a target structure in a region of interest. Processing circuitry controls transmission of the ultrasound signal, while driving circuitry that is operatively coupled to the one or more first transducer elements and the processing circuitry drives the transmission of the ultrasound signal. The ultrasound probe further includes one or more second transducer elements that receive echo signals returning from the target structure in response to transmission of the ultrasound signal, and a power supply that provides power to the driving circuitry for transmission of the ultrasound signal. The docking station includes an interface that is couplable to the ultrasound probe and circuitry that electrically couples to the ultrasound probe via the interface and enhances the ultrasound functionality of the ultrasound probe.

The invention relates to a new-energy automobile power battery thermal management device and method, and belongs to the technical field of new-energy automobile battery management. The method comprises the following steps that a first temperature sensor detects the real-time temperature T of a power battery pack and presets four temperature grades for the real-time temperature T, a second temperature sensor detects the temperature difference -T between the high and low temperature ends of a thermobattery module, and a voltage sensor detects the temperature difference voltage U of the thermobattery module; a controller presets the critical temperature of the thermobattery module as Th, the critical voltage is Uh, the low temperature end temperature is T1, the high temperature end temperature T2, and if it is determined that -T is larger than Th and U is larger than Uh, a temperature relay module is controlled to drive the thermobattery module to act; the controller judges the real-timetemperature T of the power battery pack on the basis of the preset temperature grades. The device has the advantages that air cooling and water cooling are organically combined through an optimal control strategy, efficient thermal management of power batteries is achieved, the battery life can be prolonged, and the using efficiency can be improved.

The invention relates to a radiating system and a radiating method for a lithium ion battery pack. The radiating system comprises a water pump, a radiator and a circulation pipeline fixed in the battery pack, wherein the liquid outlet of the water pump is connected with the liquid inlet of the radiator through a pipeline; the liquid outlet of the radiator is connected with the liquid inlet of the circulation pipeline through the pipeline; the liquid outlet of the circulation pipeline is connected with the liquid inlet of the water pump through the pipeline; and the water pump and the circulation pipeline are used for radiating the battery pack through a cooling liquid. According to the radiating system and the radiating method provided by the invention, efficient thermal management can be carried out, so that it is ensured that the lithium battery system can run within the most reasonable temperature range, and the cycle life of the battery can be prolonged; the on-off of a fan is directly controlled through a signal emitted from a battery management system; the fan is not controlled by a vehicle control unit, so that the workload of the vehicle control unit is reduced; and the circulation pipeline adopts a flat shape, and is fixed in the battery pack with a continuous S shape, so that the tight contact between the circulation pipe and the batteries in each is ensured, and the radiating effect of the battery pack is improved consequently.

The invention belongs to the technical field of a battery product, and particularly relates to a lithium battery energy storage module and a lithium battery energy storage module group. The lithium battery energy storage module comprises a battery cell, a battery cell support and a busbar, wherein a tab of the battery cell is fixedly arranged on a tab fixed part of the battery cell support, the busbar comprises a first busbar plate, a second busbar plate and a connection plate, the first busbar plate and the second busbar plate are welded with the tab of the battery cell arranged on the battery cell support, and the connection plate is fixedly connected with the tab fixed part. The special busbar is arranged and is used for connecting in series and in parallel each battery cell on the battery cell support, the electrical contact area of the battery cell during busbar can be reasonably set by controlling sizes of the first convergence plate and the second convergence plate, so that theeffective and electrical contact are among the battery cells is ensured, energy loss caused by overheat of the lithium battery energy storage module is prevented, favorable thermal control of the energy storage module is facilitated, and meanwhile, the energy storage application efficiency of the energy storage module is improved.

The invention discloses an energy-storage phase-change film composite material, a preparation method and application thereof. The energy-storage phase-change film composite material comprises a phase-change coating, pressure-sensitive adhesive layers attached to two surfaces of the coating and polyester protective films on two sides of the coating, wherein the phase-change coating is obtained by mixing an adhesive, an organic solvent and a phase-change microcapsule material to prepare slurry, coating the surface of a polyester film with the slurry and performing high-temperature drying, and the polyester film protective layer is obtained by coating the polyester film with a pressure-sensitive adhesive and drying at high temperature. According to the invention, the product can be used multiple times at 130 DEG C and under the pressure of 1MPa, and has good energy storage and temperature control capabilities and durability; and the energy-storage phase-change film composite material is high in phase-change enthalpy value, high in heat storage and absorption capacity, small in thickness, high in temperature control capacity, good in bendability, capable of being attached to a plane, capable of being rolled into the coiled material, convenient to store and use, capable of adapting to various machining and using environments, suitable for being used in various scenes and capable ofconducting good heat management on various electronic products.

The invention relates to particle sensors that are capable of passively cooling high-powered optical sources within the sensor, thereby extending the optical source lifetime without requiring additional power. The sensor detects particles within a sample fluid by optical interaction of the optical source with flowing sample fluid in the sample chamber. Sample fluid that exits the sample chamber is directed into thermal contact with the optical source, thereby cooling the optical source. Sample fluid that has come into thermal contact with the optical source is continuously removed from the sensor to ensure the optical source is adequately cooled. A variety of elements are used to facilitate thermal contact between the optical source and sample fluid including plenums, heat sinks, and airflow cavities. Provided are related methods for cooling a one or more heat-producing device within a particle sensor.