98 results about "Operating temperature range" patented technology

The invention discloses a wide-temperature-range sodium-lithium hybrid energy storage system and a control method thereof. According to the system, the working temperature range of the energy storage system is effectively expanded through sodium-lithium hybrid energy storage; the sodium ion battery unit bears a low-temperature working condition, and the lithium ion battery unit bears a normal-temperature basic load, so that the low-temperature and power characteristics of a sodium battery and the high-energy density advantage of a lithium battery are exerted, and complementation of energy density and temperature adaptability is realized; and the independent bidirectional DC / DC converter is adopted for power coupling, so that the problem of voltage mismatching possibly caused by direct parallel connection is effectively avoided, and the reliability and the control precision of the system are improved. The system has intelligent environment perception and adaptive control capabilities, can adaptively adjust a working mode and a power distribution strategy according to environment conditions, and is high in intelligent degree. The modular design is adopted, system expansion and maintenance are facilitated, and the operation and maintenance cost is reduced.

The invention discloses an optical Gray code encoder temperature compensation method and system based on an NTC resistance network, and the method comprises the steps: calibrating a PD signal drift law in a working temperature range, designing an NTC voltage division circuit matched with the law, and integrating the NTC voltage division circuit to a comparator, thereby achieving the real-time offset of the PD signal temperature drift. According to the scheme, the defects that in the prior art, complexity is high and cost is high are overcome, compensation precision within + / -0.5% is achieved only through basic electronic elements, the response speed reaches the microsecond level, cost is reduced by 60% or above, the method is suitable for wide-temperature-range scenes ranging from-40 DEG C to 85 DEG C, and a low-cost and high-precision temperature compensation solution is provided for precise measurement of high-end equipment.

The invention relates to a heat transfer system (10) with a heat source (14) and a heat sink (50), wherein the heat source (14) has a heat discharge arrangement (34) for heat discharge from the heat source (14) by means of a working fluid (12), wherein within the heat discharge arrangement (34) the working fluid (12) can be thermally coupled or coupled to the heat source (14), and wherein by means of the working fluid (12) the heat source (14) can be thermally coupled or coupled to the heat sink (50).A high and defined heat transfer over a large operating temperature range can be achieved by the heat transfer arrangement (34) comprising at least two stages arranged parallel in terms of flow, a first stage (36) and a second stage (42), for heat transfer from the heat source (14) to the working fluid (12), wherein the stages (36, 42) are designed such that they have a different thermal resistance between the heat source (14) and the working fluid (12).

The invention discloses a low-temperature environment LNG (Liquefied Natural Gas) metering sensor drift compensation method and system, and particularly relates to the technical field of sensor drift compensation. Output data of a sensor are collected and processed, and a temperature compensation model of the sensor is established; in the working temperature range, digital filtering processing is carried out on data of displacement change of each measuring range point, and then analysis and mining are carried out; a data longitudinal interval in a temperature range is refined by using a table look-up method, so that the data interval is reduced. And calculating the G value according to the residual error obtained by the table look-up method and the numerical value change condition in each temperature section. If the G value is greater than a preset threshold value of the system, selecting a proper fitting method, such as a least square method or Legendre orthogonal polynomial fitting, according to the distribution of the G value and the data interval when curve fitting is used, so as to further optimize the temperature compensation model; and if the G value is smaller than the system preset threshold value, no subsequent operation is carried out.

The invention belongs to the technical field of electronic information components, and discloses a ceramic composite protective layer capable of improving working temperature, and a preparation method and application thereof. Firstly, a silicon nitride film is deposited on the surface of a sensitive layer of a film temperature sensor by adopting a magnetron sputtering technology; and depositing an aluminum oxide protection layer on the surface of the silicon nitride film by adopting an ultrasonic spraying technology to form a protection layer with a silicon nitride / aluminum oxide composite structure. The internal stress of the composite structure protection layer can be reduced, the thermal stability of the composite structure protection layer is improved, meanwhile, the problem of overflow of sensitive layer material elements in the sensor is inhibited, and the high-temperature stability of the film temperature sensor is improved. According to the invention, the working temperature range of the thin film temperature sensor in an ultra-high temperature environment is obviously expanded, so that the thin film temperature sensor can better adapt to a severe environment at a hot port of an aero-engine with a large thrust-weight ratio.

To improve the cooling performance of the GFI and transformer located inside the cubicle. [Solution] In a cubicle housing multiple devices, the temperature control device includes a temperature sensor provided in the device, a temperature measuring unit that collects temperature information measured from the temperature sensor, and a cooling control unit that refers to an operating temperature table storing the operating temperature ranges of multiple devices, compares the temperature of the device obtained from the temperature measuring unit with the operating temperature range of the device obtained from the operating temperature table, determines whether the device is approaching the upper limit of its operating temperature range, and instructs the cooling device to start up when it is determined that the device is approaching the upper limit of its operating temperature range.

This application provides a method, apparatus, electronic device, and storage medium for predicting battery heat generation power. It acquires multiple first average heat generation powers of the battery when charged and discharged at different rates at a target temperature, and multiple second average heat generation powers of the battery when charged and discharged at the target rate at different temperatures. The target temperature includes the middle temperature of the battery's operating temperature range, and the target rate includes the rate at the middle position of the battery's rate range and the rate at the beginning and / or end positions. The multiple first average heat generation powers and multiple second average heat generation powers are fitted to obtain a relationship between the heat generation power of the battery when charged and discharged at different rates at different temperatures. Based on the obtained heat generation power relationship, the heat generation power of the battery when charged and discharged at any rate at any temperature is determined. This application can save testing time and resources while ensuring prediction accuracy.

The invention provides a self-adaptive dynamic random access memory based on double-Bank heterogeneity, a control method, a medium, a terminal and a program product, the self-adaptive dynamic random access memory based on double-Bank heterogeneity comprises a plurality of first Bank groups, each first Bank group comprises a plurality of low-delay Banks, and the low-delay Banks are used for accessing small data block data; a plurality of second Bank groups, each second Bank group comprises a plurality of high-capacity Banks, and the high-capacity Banks are used for accessing big data block data; the line number of the storage array of the high-capacity Bank is greater than that of the storage array of the low-delay Bank; the time sequence parameter switching module is used for switching time sequence parameters of the low-delay Banks according to the real-time working temperature of each low-delay Bank; the time sequence parameters comprise an optimized time sequence parameter corresponding to a typical working temperature interval and a standard time sequence parameter corresponding to a high temperature interval; and the memory control module is used for controlling the small data block to access the low-delay Bank or the big data block to access the high-capacity Bank based on the size of the data block. According to the invention, delay and high capacity can be decoupled, the time sequence is saved, and the load adaptability is enhanced.

An article of manufacture comprises: a first integrated circuit, with a cavity formed through an entire thickness between a first surface of the first integrated circuit and a second surface of the first integrated circuit; a second integrated circuit having a size such that at least a portion of the second integrated circuit fits within at least a portion of the cavity; and a thermally conductive structure mechanically connected to the second surface of the first integrated circuit and mechanically connected to a surface of the second integrated circuit. A feature of the first integrated circuit and a feature of the second integrated circuit are positioned at respective distances from a reference plane intersecting a portion of the thermally conductive structure, such that the distances remain substantially equal to each other at each of a plurality of temperatures within a predetermined operating temperature range.

This invention discloses an over-temperature protection circuit for power supply ICs, belonging to the field of integrated circuit design. It includes a reference current source module, a PTAT current source module, a temperature decision module, a temperature sensing module, and a hysteresis comparator module. This circuit employs a temperature-segmented triggering mode and hysteresis comparator technology. While ensuring a wide operating temperature range, it significantly reduces the high power consumption caused by the indiscriminate operation of traditional over-temperature protection across the entire temperature range. Furthermore, it effectively avoids false triggering faults near the over-temperature protection point caused by process fluctuations or noise, and solves the problem of repeated switching of power transistors due to external disturbances. Therefore, it is suitable for use in power chips requiring integrated over-temperature protection. The over-temperature protection circuit of this invention has the advantages of simple structure, low production cost, and small area, and combines low power consumption with high reliability, thus improving the lifespan and stability of power supply ICs.

Method for temperature control of a high-voltage storage device (3) of a vehicle (1) driven by an electric machine (2), in which a power requirement for the high-voltage storage device (3) is determined for a journey of the vehicle (1), an operating temperature range for the high-voltage storage device (3) is determined depending on the determined power requirement, and the high-voltage storage device (3) is temperature controlled such that a temperature of the high-voltage storage device (3) lies within the determined operating temperature range, characterized in that a driving mode selected by a driver of the vehicle (1) from different driving modes provided for selection for the journey is determined for the journey of the vehicle (1) by means of an operating input, and the power requirement is determined depending on the selected driving mode and depending on whether the vehicle (1) is connected to a trailer.

A smart temperature control system of a network equipment includes a motherboard disposed on a plate of a case, wherein a cooling chip is disposed between the plate and a portion of the motherboard where a temperature-controlled member is disposed on. A system CPU controlling circuit on the motherboard receives an information of a real-time temperature and a model of the temperature-controlled member, and obtains an operating temperature range of the temperature-controlled member by comparing the information of the model of the temperature-controlled member received with different models of the temperature-controlled member in a memory. When the real-time temperature of the temperature-controlled member falls out of the operating temperature range of the temperature-controlled member, the system CPU controlling circuit controls a power-driving circuit to drive the cooling chip via voltages with opposite polarities to cool or heat the motherboard and the temperature-controlled member disposed on the motherboard.

This invention discloses a control method for an immersed battery system, relating to the field of immersed liquid cooling technology. The immersed battery system includes multiple temperature sensors, multiple battery cells, a coolant for immersing the battery cells, and a coolant spray pump located above the battery cells. The method is executed periodically and includes: acquiring the real-time operating temperature of the multiple battery cells; determining operating frequency control parameters and return water temperature control parameters based on the real-time operating temperature of the multiple battery cells, a preset operating temperature range, and a preset temperature difference; controlling the operating frequency of the coolant spray pump according to the operating frequency control parameters, and controlling the return water temperature of the coolant according to the return water temperature control parameters. This invention also provides an immersed battery system control device, electronic equipment, and medium. This invention has the advantages of high heat exchange efficiency and good temperature uniformity.

A switching device includes a semiconductor power switch and temperature sensitive element (TSE). The switch has a normal operating temperature range and an active area. The TSE is connected to the switch proximate area, and configured such that conduction of electric current through the TSE is negligible when a temperature of the TSE is within the normal operating temperature range. Conduction increases when temperature of the TSE is above the normal operating temperature range. This continues to a level sufficient for turning off the switch, e.g., by shorting the gate and source of switch. The TSE protects the switch from thermal damage during an overcurrent event. An inverter circuit includes a direct current link capacitor and multiple switching pairs of the switching devices.

This utility model discloses an air-cooled sodium-ion battery commercial energy storage system, including a main cabinet and a slave cabinet. The main cabinet has a battery compartment for installing sodium-ion battery packs and an electrical compartment for installing electrical control equipment. The slave cabinet has a battery compartment for installing sodium-ion battery packs. The main cabinet and the slave cabinet are electrically connected by a bus harness. By adopting a structural design suitable for sodium-ion batteries, the entire energy storage system can take advantage of the wide operating temperature range of sodium-ion batteries, operating normally within a temperature range of -40℃ to 80℃. At the same time, it adopts customizable bus harnesses and customizable sodium-ion battery pack numbers to accommodate more different industrial and commercial energy storage needs.

The invention provides an intelligent temperature regulation and control method and system for high-rate charging of a battery and a medium, and the method comprises the steps: obtaining the real-time charging data of a target battery pack before the quick charging process of an electric vehicle, and inputting the real-time charging data into a trained battery prediction model; the charging data of the battery pack in the fast charging process are predicted in real time, and then the charging rate and the cooling power of the battery thermal management system are dynamically adjusted according to the predicted data, so that the temperature of the battery pack is kept in the optimal working temperature interval.

The invention belongs to the technical field of smoke gun equipment cooling, and particularly relates to an automatic detection and real-time temperature control cooling system for smoke gun equipment, which comprises a shell, a cooling circulation pipeline, a temperature detection module, a flow detection module, a shunting regulation and control module, a refrigeration module and an industrial control computer. All the function modules are installed in the machine shell, the industrial control computer is in signal connection with all the modules, and data receiving and operation control are achieved. The cooling circulation pipeline completes cooling water circulation supply, the temperature detection module monitors the temperature of a key node, the flow detection module obtains the cooling water flow in real time, the flow division regulation and control module adjusts the water flow path and flow distribution, and the refrigeration module cools the cooling water. The system can accurately control the temperature of the smoke gun equipment, ensures that the smoke gun equipment works in an optimal operating temperature range, improves the efficiency and service life of the equipment, quickly responds to temperature abnormity, and ensures stable product quality.

A control system for a secondary battery which is less affected by the ambient temperature by performing temperature control of the secondary battery is provided. A control system for a secondary battery which is less affected by the ambient temperature and in which a plurality of kinds of secondary batteries are used for temperature control is achieved and mounted on a vehicle. Specifically, when the ambient temperature is low, some of second secondary batteries are heated by self-heating of a first secondary battery. After the second secondary batteries are sufficiently heated, the rest of the second secondary batteries are heated in stages by self-heating of the some of the second secondary batteries whose temperature has been increased. Whether the some or all of the second secondary batteries are sufficiently heated can be confirmed if the temperatures of a plurality of temperature sensors provided in the second secondary batteries are within the operating temperature range of the second secondary batteries. For example, with the use of a temperature sensing terminal (T terminal) for a temperature sensor, a switch is closed when the internal temperature of the secondary batteries is out of the operating temperature range.

A method including: charging a capacitor in parallel to the ESD; determining whether an energy storage device (ESD) is in use; monitoring temperature of the ESD, the ESD has a prescribed and operational temperature range; discharging the capacitor through an inductor by temporary actuation of a switch that couples the inductor in parallel to the capacitor, wherein oscillation of current and voltage is provided by a first circuit formed by the capacitor and the inductor, maintaining the ESD temperature within temperature range through oscillation of the ions due to high frequency oscillation of a second circuit formed by the capacitor and the internal inductance of the ESD, repeating the temporary reactuation of the switch while temperature is within the temperature range. Wherein the given temperature range is the prescribed temperature range when the ESD is not being used and is the operational temperature range when the ESD is being used.

This invention discloses a power battery thermal management method and thermal management system, specifically relating to the field of battery thermal management and cooling technology. This invention divides the battery pack into multiple zones, constructs a distributed monitoring network by combining the zone's real-time temperature, temperature change trends, and ambient temperature, corrects temperature deviations, and then categorizes the corrected real-time temperature into high-temperature, moderate-temperature, and low-temperature groups based on the corrected real-time temperature and the preset reference operating temperature range, achieving differentiated temperature control for each zone. Compared to the traditional "one-size-fits-all" whole-pack thermal management, this effectively solves the problem of uneven temperature caused by differences in spatial layout and heat dissipation boundaries within the battery pack.

The utility model relates to the field of server management and monitoring hardware, in particular to a high-precision embedded BMC (baseboard management controller) mainboard. The utility model provides a high-precision embedded BMC mainboard, which comprises a BMC daughter card, a CPU, a mounting rack, threaded rods and the like, the CPU is mounted on the BMC daughter card, the upper side of the CPU is in threaded connection with a plurality of threaded rods, and the mounting rack is slidably connected among the plurality of threaded rods. Through the design of the copper-based cooling fins, heat generated by the CPU during operation can be efficiently conducted to the copper-based cooling fins, the heat from the CPU can be rapidly absorbed and uniformly dispersed, the problem of local overheating is effectively avoided, in addition, operation of the fan in the host and the copper-based cooling fins supplement each other, the fan rotates to blow air to the copper-based cooling fins, and the heat dissipation efficiency is improved. The speed of dissipating heat from the surface of the copper-based cooling fin to the surrounding environment is further accelerated, and the synergistic effect not only ensures that the CPU can stably operate within a safe working temperature range, but also greatly prolongs the service life of the CPU and other key hardware.

The application provides a hydrogen-induced heating structure design method based on a starting hydrogen storage material combination, which comprises the following steps: 1, determination of a functional material bed layer parameter; 2, determination of a candidate starting hydrogen storage material physical property parameter and screening of the starting hydrogen storage material combination; and 3, determination of a hydrogen-induced heating structure parameter. The screening requirements need to meet the following three screening requirements: requirement 1, at least one starting hydrogen storage material can be started from room temperature; requirement 2, there is an overlap between the starting temperature and the equilibrium temperature corresponding to the hydrogen absorption operation pressure; and requirement 3, the working temperature ranges of different starting hydrogen storage materials are superimposed to completely cover the room temperature to the starting temperature of the functional material bed layer. The obtained hydrogen-induced heating structure can be heated to 270-350 DEG C, and the required heating time is 130-200 s; the heating depth of the hydrogen-induced heating structure is 1-5 mm, and the functional material bed layer can be rapidly started.

This invention provides an evaluation and optimization method, device, and storage medium for a power battery thermal management system, belonging to the field of battery thermal management technology. The method includes the following steps: acquiring temperature data of the power battery under various test conditions; comparing each temperature data point with a pre-set optimal operating temperature range threshold to obtain temperature difference data under each test condition; determining the weight of each test condition based on the mapping relationship between each test condition and its pre-set weights; and determining the temperature deviation data of the power battery based on the temperature difference data and the weights of each test condition. A higher temperature deviation indicates a lower ability of the power battery to operate within its optimal operating temperature range, and vice versa, thus evaluating the power battery's ability to operate within its optimal operating temperature range.

The invention relates to an intelligent current sensor and application thereof in a new energy automobile, and belongs to the technical field of intelligent sensors. The intelligent current sensor comprises a current measurement module used for collecting original current signals; the temperature detection module is used for detecting the environment temperature in real time; the temperature correction module is used for performing temperature compensation on the current measurement value in the full temperature zone range; the precision and stability of the current sensor are improved by arranging the temperature detection module and the temperature correction module, in the aspect of actual measurement precision, it can be guaranteed that the measurement precision is improved within the working temperature range, meanwhile, the environment adaptability of the sensor is improved by selecting a high-temperature-resistant material, adding a protective coating and designing a waterproof and dustproof structure, and the service life of the sensor is prolonged. And furthermore, in the aspect of communication, efficient data interaction and system integration of the battery management system are realized.

The invention relates to a damper, fabric processing equipment and a control method in the technical field of fabric processing equipment, the damper comprises a sleeve and a piston rod, the piston rod comprises an outer-layer rod sleeve and an inner-layer sleeve rod, an annular separation cavity is formed between the outer-layer rod sleeve and the inner-layer sleeve rod, and the sleeve is slidably arranged in the annular separation cavity in a sleeved mode; and a damping medium is filled between the inner wall of the sleeve and the outer wall of the inner-layer sleeve rod, and / or a damping medium is filled between the outer wall of the sleeve and the inner wall of the outer-layer rod sleeve. The damper integrates the functions of damping, temperature adjustment, acoustic noise reduction and the like through the design of a multi-layer composite structure, solves the problems that a traditional damper is attenuated in performance in a high-temperature environment, high in viscosity at a low temperature, large in operation noise, complex in structure, redundant in parts and the like, enables a damping medium to be always in an optimal working temperature range, and improves the working efficiency. Therefore, the damper achieves the comprehensive technical effects that the damping performance is stable, the noise of the whole machine is reduced, the service life of the system is prolonged, and the production cost is controllable.

The utility model relates to the technical field of batteries, in particular to a liquid-cooled battery pack structure which comprises a liquid-cooled plate, an upper cover is mounted at the upper end of the liquid-cooled plate, two battery modules are further mounted at the upper end of the liquid-cooled plate, the battery modules are symmetrically distributed, and each battery module consists of a plurality of single battery cells. The temperature of the battery pack can be monitored and adjusted in real time through the temperature sensor and the control system, it is ensured that the battery pack is within the optimal working temperature range, the charging and discharging efficiency and safety of the battery are improved, and the battery pack is safe and reliable. And a reliable sealing structure and protection measures are adopted, so that the influence of the external environment on the battery pack can be effectively prevented, and the safe operation of the battery pack in various severe environments is ensured.

The invention provides a temperature sensor having a planar heat-sensitive part and capable of improving heat resistance and high-speed responsiveness, and a device provided with the temperature sensor. The temperature sensor is characterized by being provided with: a substrate (2) formed from a glass material that does not undergo a phase change in a use temperature range; at least one pair of thermistor electrode layers (3) formed on the substrate (2) and at least one pair of lead connection electrode layers (33) connected to the thermistor electrode layers; a thin-film resistive film (4) electrically connected to the at least one pair of thermistor electrode layers (3) formed on the substrate (2); a cover part which covers the thin-film resistive film (4) and is made of a glass material; and at least one pair of lead parts (8) electrically connected to the at least one pair of lead connection electrode layers (33), in which a planar first planar part (60) as a heat-sensitive part is formed on the substrate side, and a planar second planar part (50) as a heat-sensitive part is formed on the lid part side.

The invention provides a cell equalization control method and system, and relates to the technical field of battery management, the limit working temperature range of a PCB is determined, equalization channels with different numbers and positions are opened one by one, and the temperature values of the equalization channels are detected in real time; obtaining the real-time maximum temperature difference value of the PCB according to the calculated real-time maximum temperature value of the PCB and the temperature difference value of the temperature detection position of the PCB, and determining the temperature safety threshold value of the PCB in combination with the temperature threshold value of the equalization resistor; and determining a PCB temperature control range according to the PCB temperature safety threshold value and the PCB real-time maximum temperature difference value, and controlling each equalization channel. The PCB temperature safety threshold value can be accurately determined according to the PCB limit working temperature, the PCB real-time maximum temperature difference value and the temperature threshold value of the equalization resistor, so that the PCB temperature control range is obtained, part of equalization channels can be closed in advance in the PCB temperature control range, all equalization channels are not directly stopped, the time for the PCB temperature to reach the safety threshold value is shortened, and the PCB temperature control efficiency is improved. The cell balancing efficiency is improved, and the battery pack PCB is protected from being damaged due to over-temperature.

This application discloses an optical system including a short-focal-length eyepiece and a display adapted to the eyepiece. The short-focal-length eyepiece has a focal length of 13.7 mm, a field of view of 40°, a magnification of 18x, an exit pupil diameter of 8 mm, an exit pupil distance of 20 mm, an operating temperature range of -40℃ to +60℃, and an operating wavelength range of 0.48 to 0.65 μm. The display is an OLED display with a resolution of 1024×768 and a pixel size of 7.8 μm. The short-focal-length eyepiece consists of a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens arranged sequentially along the optical axis from the eye side to the image side. The first and second lenses are cemented together, and the fourth and fifth lenses are cemented together. This short-focal-length eyepiece can achieve clear imaging of a large target area, meets the requirements of low distortion, and adopts a non-thermal compensation method, exhibiting good imaging performance at different operating temperatures.

This invention belongs to the field of navigation instrument technology and discloses an inertial navigation instrument with automatic temperature control function, including a main body and a power supply unit, and further including: a heat conduction component installed inside the main body; wherein, the heat conduction component includes a heat absorption head fixedly connected to the inside of the main body, a connecting shell fixedly installed inside the main body, and a connecting pipe located inside the connecting shell fixedly installed on one side of the heat absorption head; this invention forms a directional heat flow blowing towards the surface of the gyroscope and accelerometer, and finally utilizes the heat generated by the operation of the power supply unit to drive a motor to squeeze the surface of the connecting pipe, thereby guiding the heat to the surface of the gyroscope and accelerometer, so that the gyroscope and accelerometer can reach and maintain a suitable operating temperature range, ensuring the normal operation of the gyroscope and accelerometer, and improving the overall performance of the navigation system.