42results about How to "Avoid short circuits etc." patented technology

The invention relates to manufacture process for lithium ion battery negative pulp adopting a lithium titanate material, which enables the lithium ion battery negative pulp to be high in safety, good in multiplying performance and long in service life. The steps comprise dosing materials by weight: lithium titanate: 100, carbon black SUPER-P: 2-4.5, polyvinylidene fluoride: 7-11 and N-methyl pyrrolidone: 100-120; under the conditions of drying and avoiding oxidization, sequentially adding polyvinylidene fluoride, carbon black SUPER-P, lithium titanate and remaining N-methyl pyrrolidone into N-methyl pyrrolidone solution, evenly mixing the solution, slowly mixing 1-1.5 hours in vacuum mode after obtaining the pulp viscosity ranging from 6000 to 8000cps; and standing the pulp to remove bubbles in the pulp after slow stirring is finished, and then obtaining the lithium titanate negative pulp through a 100-150 mesh screen. By utilizing the manufacture process with an ideal scattering effect, the purposes of simplifying pulp manufacture process and improving the pulp scattering effect are achieved.

The device includes a coupling coil T1, two identical resistances R1 and R2 as well as two identical capacitors C1 and C2. One end of the C1 is connected to system to be measured, and after connecting to R1, positive and negative ends at primary side of T1, and R2, C2 in sequence, the other end of the C1 is connected to system to be measured. Positive and negative ends of coupled output end of T1 are connected to collecting device. The invented device also includes a switch between negative end of coupled output end and ground. The switch is on if output end in 75 ohm, and the switch is off if output end in 125 ohm. the advantages are obstructing influence on original signal, improving waveform of collected signal, avoiding short circuit etc.

The invention belongs to the technical field of semiconductor chip packaging and is intended to solve the problem that existing chip packaging takes high energy consumption and easily experiences wirefailure. The invention, therefore, provides a multi-chip stack packaging structure, comprising: a substrate having a base and a terrace and including a first chip stack unit and a second chip stack unit, wherein the first and second chip stack units are stacked in staircase manner in opposite directions; bonding wires, including first bonding wires that directly connect the base and chips in thefirst chip stack unit, and second bonding wires that connect the terrace and chips in the second chip stack unit. The terrace is arranged on the base, so that the length of the bonding wires is effectively shortened, the consumption of the wires is reduced, the production cost is reduced, welding time can be shortened, and packaging efficiency is improved; in addition, the shorter bonding wires help effectively improve chip stability and prevent the bonding wires from shaking too much during vibration, causing short circuit and other conditions.

An embodiment of the invention provides a portable USB (universal serial bus) interface based heavy metal ion detection device assembled by an electrode card and a thin-layer flow cell as well as the electrode card adopted by the heavy metal ion detection device. Three electrodes, namely, a working electrode, a counter electrode and a reference electrode, are arranged on the surface of the electrode card, and the electrode card is tightly inserted into a card slot of the thin-layer flow cell in a pluggable manner; three strip-shaped connecting pins of the three electrodes are parallelly arranged at an end part of the electrode card to form an interface end, a USB interface is formed by the interface end and the connecting pins according to USB specifications, and when a USB plug is inserted into the interface end, the three connecting pins are contacted and communicated with different pins in the USB plug. The interface of the electrode card is normalized according to the USB standards, the USB plug can be inserted into the interface conveniently for powering the electrodes, convenience and universality of the electrode card and the detection device are improved greatly, the electrode clamping stability is improved, and wear of the connecting pins of the electrodes during use is reduced.

The invention discloses a robot three-dimensional drag chain. The robot three-dimensional drag chain is formed by connecting multiple sections of single chain links. Each single chain link is annular as a whole and is separated into a left chain link and a right chain link by a plane passing the midperpendicular of the single chain link, and the two ends of the left chain link and the right chain link are overlapped with each other at the partition part. One group of groove and hasp which are buckled with each other are arranged in the center of each single chain link, a left spherical surface connector is arranged in the middle of the groove, a right connecting ball is arranged in the middle of the lower part of the hasp, and the right connecting ball can be connected with the spherical surface of the left spherical surface connector in the single chain link below the right connecting ball. The right chain link comprises an inner cambered surface and an outer cambered surface, and the outer cambered surface at the upper part of the right chain link adopts a gradual change structure of which the two sides are thicker than the middle. The robot three-dimensional drag chain overcomes the problem that the traditional robot drag chain is difficult to bend due to the even design of outer ring surfaces in the single chain link structure and is therefore not portable enough when a cable is mounted in the drag chain and the cable in the drag chain is repaired and solves the problem that dust in the air, and oil stains, water stains and the like, produced during robot operation, enter the inner part of the drag chain and pollute the cable due to poor air tightness.

The invention relates to the technical field of water quality monitoring, and discloses a buoy type vertical profile water quality monitoring device. The buoy type vertical profile water quality monitoring device comprises a waterproof and anticorrosive cabinet, a winch body, a braking system, an instrument cabin and an electrical control system. The buoy type vertical profile water quality monitoring device can be distinguished from a conventional buoy type water quality measurement fixed-point and fixed-depth measurement mode, and performs fixed-point and layered measurement; the depth is fed back to the electric control system according to a depth value fed back by means of a terminal sensor, and forward and reverse rotation of a motor are controlled so as to achieve the function of fixed-depth measurement; the winch is adopted for winding to achieve the purpose of up-and-down measurement; the configuration of a cable can be customized according to the specific requirements of the integrated sensor; the cabinet body and the winch provided by the invention are of standard models and can support linkage of sensors of various brands and models; and effective monitoring data can beprovided for the point fixing and layering of a water body according to data measured by the means of the buoy type vertical profile water quality monitoring device, and a good data basis is providedfor the overall water quality state of the water body.

An embodiment of the invention discloses a control circuit comprising a first power supply, a detection unit, a control unit, and an alarm unit, wherein the detection unit, the control unit and the alarm unit are connected in parallel to the two ends of the first power supply. The detection unit comprises a humidity-sensitive probe. If the humidity-sensitive probe is exposed to water, the humidity-sensitive probe is conducted, and the control unit and the alarm unit work. When the control unit is working, the control unit sends a switching signal to an external circuit. When the alarm unit is working, the alarm unit sends an alarm signal. According to the control circuit provided by the invention, the alarm circuit alarms automatically under control to remind a user in time when the humidity-sensitive probe detects that water exists in the control circuit. By applying the control circuit to a lighting device, the control circuit can automatically cut off power supply to a driving unit and a lighting light source when water is detected in the lighting device, so as to avoid short circuit, explosion or other dangerous situations and improve the security of the circuit. The circuit provided by the embodiment of the invention is simple in structure and low in cost.

The invention proposes a convenient wire clip. The convenient wire clip comprises a bottom buckle and a top buckle, wherein the bottom buckle comprises a first arc plate, a first positioning plate and a second positioning plate, wherein the first positioning plate and the second positioning plate are both arranged on the first arc plate, a limitation clamping block is arranged at one end of the first positioning plate, a limitation shaft is arranged on the limitation clamping block, the axial direction of the limitation shaft is parallel to the axial direction of the first arc plate, the limitation shaft is arranged on one side, far away from the first arc plate, of the first positioning plate, a limitation hole is formed in the second positioning plate, the shape of the limitation hole is rotatably matched with the shape of the limitation shaft, the top buckle comprises a second arc plate, a third positioning plate and a fourth positioning plate, the third positioning plate and the fourth positioning plate are both arranged on the second arc plate and are arranged on two opposite sides of the axial line of the second arc plate, the third positioning plate is detachably arranged on the first positioning plate, the fourth positioning plate is detachably arranged on the second positioning plate, and the first arc plate and the second arc plate protrudes towards directions which the first arc plate and the second arc plate deviate from each other. The convenient wire clip has the advantages of simplicity in structure and high safety, and is convenient to use.

The invention relates to a flexible temperature sensor. The flexible temperature sensor comprises a thermistor, a copper substrate and a first FPC film; the first FPC film wraps the substrate to form a flexible circuit board; the first FPC film is provided with a device window for mounting the thermistor and an electric connection window for the lap joint of a flexible wire. In addition, the invention also relates to a battery pack adopting the flexible temperature sensor. The temperature sensor has the characteristic of flexibility, and can easily adapt to working conditions such as narrow installation space and the like; the FPC film wraps the substrate, so that the insulating property and the temperature resistance of the temperature sensor can be improved, and the working reliability of the temperature sensor is improved; the copper substrate also has a good heat-conducting property, so that the temperature sensing area of the temperature sensor can be obviously increased, and the temperature sensing sensitivity and the detection accuracy of the temperature sensor can be effectively improved; and therefore, the temperature sensor has the advantages of simple structure, convenience in installation, high working reliability and the like, and can better meet the temperature monitoring requirements of the battery pack and the like.

The invention discloses an electric steamer which comprises a base, a water tank, a steaming cage, a control assembly and a dehumidifying device. The base comprises a base body with the bottom opened and a pedestal sealing the bottom of the base body. Containing space is limited between the base body and the pedestal. The water tank is arranged on the base body. The steaming cage is suitable for being placed on the water tank and cooking space used for processing food is limited in the steaming cage. The control assembly is arranged in the containing cavity. The dehumidifying device is arranged in the containing space and used for dehumidifying the control assembly. According to the electric steamer, the control assembly is dehumidified by the dehumidifying device, so that the conditions of a short circuit and the like which are caused by moisture absorption of the control assembly of the electric steamer in the moist environment are avoided, the product failure rate and the probability of security accidents are reduced, and in addition, the structure is simple and cost is low. The invention further discloses a cooking utensil capable of dehumidifying a circuit board.

The invention discloses an Internet of Things power converter, which comprises an external regulation and control mechanism, a switching monitoring mechanism, built-in anti-theft mechanisms and a connection reinforcing mechanism, and is characterized in that the switching monitoring mechanism is arranged in the external regulation and control mechanism, and the built-in anti-theft mechanisms are arranged on the inner walls of the periphery of the external regulation and control mechanism; according to the Internet of Things power converter, in the power conversion process, a user can observe information such as a power transmission power source of equipment through the LED module on the surface of the equipment, and the user can also observe information such as a power transmission power source of the equipment through mutual communication of the switch assembly, the LED module, the conversion assembly and the wireless transmission module; the wireless transmission module is connected with a terminal device, and data such as power transmission speed and size in the switch assembly and the device are provided for the terminal device through the wireless transmission module, so that a user can conveniently master state information such as power transmission size and power closing and opening of the power conversion device at any time, and intelligentization of the internet of things of the device is realized.

The invention relates to an intelligent lithium battery charger applicable to a high-temperature and high-humidity environment. The intelligent lithium battery charger comprises a charger body, and a wire is arranged on the rear side of the charger body; according to the intelligent lithium battery charger applicable to the high-temperature and high-humidity environment, the charging auxiliary mechanism is arranged above the charging groove, so the condition of poor contact between a lithium battery and the charging groove is avoided; according to the intelligent lithium battery charger applicable to the high-temperature and high-humidity environment, the lithium battery in the charging groove can be taken out by rotating the screwing block through the ejection mechanism arranged below the charging groove; according to the intelligent lithium battery charger applicable to the high-temperature and high-humidity environment, a plurality of heat dissipation fans, drying agent particles and the like are arranged in the shell, so that a heat dissipation effect on circuit components in the charger is achieved, the conditions of combustion and the like of the charger due to high temperature are avoided, and the dry environment in the charger is ensured; therefore, the conditions such as short circuit caused by water vapor condensation can be avoided.

The invention discloses a trigger type air purifier control device. The trigger type air purifier control device structurally comprises a controller protection frame, heat dissipation holes, a controller main body, a fixed buckle, a control panel, power supply indicating lamps, adjusting buttons, a liquid crystal display screen and a product nameplate. According to the trigger type air purifier control device disclosed by the invention, by arranging a dehumidifying structure on the trigger type air purifier control device, during the use of the trigger type air purifier control device, even inrainy weather, air at the inner part of the control device is moist, and moist air can be brought out by ventilating, so that the control device can be kept dry, the situations that electric appliance elements are easy to generate short circuit due to dampness can be avoided, normal work of the trigger type air purifier control device is ensured, and the practicability of the trigger type air purifier control device is increased.