52results about How to "Guaranteed injection accuracy" patented technology

The invention relates to an electrolyte priming head and belongs to the battery manufacturing field; the electrolyte priming head comprises a tube-shaped cavity and a pin valve; the pin valve is arranged at the top part of the tube-shaped cavity, and a valve port is arranged at the bottom part of the tube-shaped cavity; the valve port is provided with a channel which is communicated with a priming port of the battery; a vacuum-pumping line connecting port and a priming line connecting port are arranged on the tube-shaped cavity; the vacuum-pumping line and the priming line are communicated with the cavity; switches for controlling on and off are arranged on the vacuum-pumping line and the priming line. The pin valve can move up and down corresponding to the tube-shaped cavity, and one end of the pin valve is matched with the valve port. The electrolyte priming head has simple structure and high priming precision, can reduce the volatilization of the electrolyte and improve the battery performance.

The invention relates to a linear liquid injection machine for a capacitance battery and a liquid injection method thereof. The liquid injection machine comprises a rack, wherein a front weighing device, a front voltage measurement device, a linear guide way, a back voltage measurement device and a back weighing device are sequentially arranged on the rack, a normal-voltage liquid injection device is arranged on the rack arranged at one side of the linear guide way, and a tray is arranged on the linear guide way. The liquid injection method comprises the following steps of: weighing the weight of the battery which is not injected with liquid, and measuring the voltage; putting the battery with normally-tested voltage which is not injected with liquid into the tray, and pushing to the normal-voltage liquid injection device; computing the liquid injection quantity, and sequentially injecting liquid into a liquid injection barrel through a hibar pump till the required liquid injection quantity is reached; carrying out the normal-voltage liquid injection on the battery; weighing the weight of the liquid-injected battery, and measuring the voltage; and pushing the tray back to an initial position through the guide way, and resetting a positioning device to complete the one-time cycle of injected liquid. According to the invention, the whole operation is linear, the invention is high in work efficiency, and the functions of on-line voltage detection, normal-voltage liquid injection and on-line liquid compensation can be realized.

The invention relates to a rotating disk type battery liquid injection machine. The invention is characterized in that four symmetrically distributed through holes are formed on a rotating disk, a plurality of liquid injection tubes are fixed regularly side by side through a fixing plate, the fixing plate is embedded in the through holes of the rotating disk, a positioning plate is arranged at the upper part of a battery fixture, a plurality of liquid injection needles are fixed on the positioning plate, a bottom plate and a plurality of bases are arranged at the lower part of the battery fixture, elastic parts are arranged below the bases, a vacuum box and a pressing plate are connected with an actuating cylinder, seal rings are arranged on the vacuum box and a pressing plate, and a decollator controls the rotating disk to rotate 90 degrees every time. The rotating disk type battery liquid injection machine has the advantages that a plurality of working procedures are carried out simultaneously, therefore, the working efficiency is greatly enhanced, the fluid injection accuracy is guaranteed, the operation is simple, and the performance is stable.

An electrical cabinet capable of partially cooling is disclosed. The electrical cabinet comprises a cabinet body (2), a mounting plate (28) fixed in the cabinet body (2) used for mounting electrical devices, the electrical devices (22) mounted on the mounting plate (28) and required to be cooled, and a partial cooling apparatus for cooling the electrical devices required to be cooled; the partial cooling apparatus comprises a fixed bearing barrel (9) fixedly mounted on the mounting plate (28) around the electrical devices required to be cooled, and a ventilation opening (91) is formed in the bottom of the fixed bearing barrel; and a gas path distribution annular part (8) with an annular cavity (80) is rotationally matched on the outer circumferential wall of the fixed bearing barrel (9).

The invention belongs to the field of medical apparatus and instruments and provides an automatic injection pump. In the working process of the automatic injection pump, when a solid shaft inclines, a second stopper inclines with the solid shaft; after inclining, the second stopper still keeps a certain distance with the first stopper; the second end of the solid shaft can vertically move downwards in an inner hole and a limiting groove of the first stopper of a baffle, so that the first stopper and a nut keep vertical positions unchanged, namely the first stopper and the nut does not incline, so that radial pressure of the nut to a screw rod is the minimum, but axial pressure of the nut to the screw rod is not decreased, namely the loss of the axial thrust which is applied by the screw rod to the nut is minimum, threads between the screw rod and the nut are not abraded intensively, injection precision of the injection pump is ensured, and the service life of the injection pump is prolonged.

The invention discloses a urea injection system controlled by a common rail-type valve group and a control method thereof. The urea injection system comprises a urea tank, a plurality of urea nozzles,a cooling water pipeline, a compressed air pipeline, a urea pipeline, an air bleed pipeline, a plurality of blowing pipelines, and a valve group injection unit, wherein the valve group injection unitcomprises a cooling water solenoid valve, a first air solenoid valve, a plurality of second air solenoid valves and a plurality of injection pressure sensors, a plurality of blowing solenoid valves,a plurality of injection solenoid valves, a pressure sensor, an air bleed solenoid valve and a temperature sensor. The entire system provides power to each branch of the urea pipeline by air compression and carries out measurement by each solenoid valve, and the temperature sensor and pressure sensor performs feedback control on the degree of opening of the solenoid valves to complete the processof common rail-type urea injection with low cost and high precision. Special blowing pipelines and blowing solenoid valves are provided to enable respective blowing on the front and rear sides of theinjection solenoid valves on the urea pipeline, so that the entire urea pipeline remains no urea after parking.

An electric switch mounting component for a solar power distribution cabinet comprises a mounting board (28) fixed on one side wall of a cabinet body (2) of the power distribution cabinet through fastening pieces (280) and used for mounting electric switches for power distribution, the electric switches (22) mounted on the mounting board (28) and requiring to be cooled, and a cooling device used for cooling down the electric switches requiring to be cooled, wherein the cooling device comprises a fixed bearing cylinder (9) fixedly mounted on the mounting board (28) and surrounding the electric switches requiring to be cooled, and a ventilation opening (91) is formed in the bottom of the fixed bearing cylinder (9).

A power distribution cabinet-used electrical switch installation assembly having a light indicating function comprises an installing plate (28) capable of being fixed to a sidewall of a cabinet body (2) of a power distribution cabinet through a fastening piece (280) and used for installing an electrical switch for power distribution, an electrical switch (22) installed on the installing plate (28) and needing to be cooled, and a cooling device for cooling the electrical switch needing to be cooled, wherein the cooling device comprises a fixed bearing cylinder (9) which is fixedly installed on the installing plate (28), surrounds the electrical switch needing to be cooled, and is provided with a ventilation opening (91) at the bottom.

An electric cabinet capable of local cooling and dust proofing comprises a cabinet body (2), an installation plate (28) fixed in the cabinet body (2) and used for installing electric devices, the electric devices (22) mounted on the installation plate (28) and in need of cooling, and a local cooling device for cooling the electric devices in need of cooling. The local cooling device comprises a fixed bearing cylinder (9) fixed and mounted on the installation plate (28), surrounding the electric device in need of cooling, and having a ventilation opening (91) in the bottom. The external circumference wall of the fixed bearing cylinder (9) is rotatably cooperated with an air channel distribution annular piece (8) with an annular cavity (80).

The invention discloses a valve-group-controlling urea spraying system and a control method thereof. The urea spraying system comprises a urea tank, a urea spray nozzle, a cooling water pipeline, a compressed air pipeline, a urea pipeline, a blow-off pipeline, a purging pipeline and a valve group spraying unit. The valve group spraying unit comprises a controller, a cooling water electromagnetic valve, a first air electromagnetic valve, a second air electromagnetic valve, a pressure regulating device, a purging electromagnetic valve, a spraying electromagnetic valve, a pressure sensor, a blow-off electromagnetic valve and a temperature sensor. Motive power is provided for the whole system through compressed air, metering is carried out through all the electromagnetic valves, feedback control over the opening degrees of the electromagnetic valves is performed through the temperature sensor and the pressure sensor, the urea spraying process is finished with low cost and high accuracy; and by means of the special purging pipeline and the special purging electromagnetic valve, purging can be performed on an upper section and a rear section of the urea pipeline, and thus the whole ureapipeline is free of residual urea after a car stops.

The invention discloses a screw-controlled outdoor rainproof electrical cabinet capable of locally cooling. The screw-controlled outdoor rainproof electrical cabinet comprises a cabinet body (2), a mounting plate (28), an electrical device (22) and a local cooling device, wherein the mounting plate (28) is fixed in the cabinet body (1) and is used for mounting the electrical device; the electrical device is arranged on the mounting plate (28) and needs to be cooled; the local cooling device is used for carrying out cooling on the to-be-cooled electrical device, and comprises a fixed bearing cylinder (9); the fixed bearing cylinder (9) is fixedly arranged on the mounting plate (28), surrounds the to-be-cooled electrical device, and is formed with a ventilating opening (91) in the bottom; and a gas path distributing ring part (8) with an annular cavity (80) is rotatably matched on the outer circumference wall of the fixed bearing cylinder (9).

The invention provides an electrical switch mounting assembly controlled by air pressure and used for a power distribution cabinet. The electrical switch mounting assembly comprises a mounting plate (28) which is fixed on a side wall of a cabinet body (2) of the power distribution cabinet through a fastening device (280) and is used for mounting an electrical switch for power distribution, an electrical switch (22) which is mounted on the mounting plate (28) and needs to be cooled, and a cooling device for cooling the electrical switch needing to be cooled; and the cooling device comprises a fixed bearing barrel (9) which is fixedly mounted on the mounting plate (28), is arranged around the electrical switch needing to be cooled, and is provided with a ventilation opening (91) at the bottom.

The invention relates to the field of fluid, in particular to a corrosion-resistant program-controlled injection pump system. The injection pump system consists of a syringe and a driving stepping motor thereof. Components in the system contacting with the fluid are all made of a high molecular material resistant to chemical corrosion (containing fluoroplastic, polypropylene, polyphenylene sulfide, polyetheretherketone or polyethylene and the like). The system is composed of at least a syringe with a channel, a driving stepping motor and a set of mechanical transmission components. The drivingstepping motor is programmed to achieve automated operation. Metal components in the system are enclosed in a box body made of a corrosion-resistant polymer material and are relatively isolated fromthe external environment so that the metal components are prevented from being corroded.

An electric cabinet capable of selectively cooling an electric device comprises a cabinet body (2), an installation plate (28), the electric device (22) and a local cooling device, wherein the installation plate (28) is fixed in the cabinet body (2) and used for installing the electric device, the electric device (22) is arranged on the installation plate (28) and required to be cooled, the local cooling device is used for cooling the electric device required to be cooled and comprises a fixed bearing cylinder (9), the fixed bearing cylinder (9) is arranged on the installation plate (28), encircles the electric device required to be cooled and is provided with a ventilation opening (91) at the bottom, and an air channel allocation annular element (8) is arranged on the outer peripheral wall of the fixed bearing cylinder (9) and rotatably matched with an annular cavity (80).

An electric cabinet capable of local cooling comprises a cabinet body (2), an installation plate (28) fixed in the cabinet body (2) and used for installing electric devices, the electric devices (22) mounted on the installation plate (28) and in need of cooling, and a local cooling device for cooling the electric devices in need of cooling. The local cooling device comprises a fixed bearing cylinder (9) fixed and mounted on the installation plate (28), surrounding the electric device in need of cooling, and having a ventilation opening (91) in the bottom. The external circumference wall of the fixed bearing cylinder (9) is rotatably cooperated with an air channel distribution annular piece (8) with an annular cavity (80).

The invention relates to the field of medical instruments, in particular to a liquid injection device for a laparoscope, which comprises a catheter part, an injection cylinder part and a bending component, the catheter part comprises a hard tube and a soft tube, and the hard tube is connected with the injection cylinder body through a connecting sleeve; a liquid storage cavity used for storing liquid is formed in the injection cylinder body, and the hose is connected with the injection cylinder body, communicated with the liquid storage cavity, penetrates through the hard tube and extends outwards. The bending assembly comprises a control assembly and a plurality of bending members; the multiple bent components are sequentially connected, and a first rotating pair is formed between every two adjacent bent components. First through holes are formed in the center of the bending component in a penetrating mode, and the hose sequentially penetrates through the first through holes. The control assembly is connected with the bending components and controls the bending components to rotate around the first rotating pairs. The liquid injection device can control the hose to be bent in all directions to adapt to the complex environment of the abdominal cavity.

The invention relates to a power distribution cabinet-used electrical switch mounting assembly with a light indication function. The power distribution cabinet-used electrical switch mounting assembly includes a mounting plate (28) which is fixed on a side wall of the cabinet body of a power distribution cabinet through a fastener (280) and is used for mounting a power distribution-used electric switch, an electric switch (22) which is mounted on the mounting plate (28) and requires cooling, and a cooling device which cools the electric switch requires cooling, wherein the cooling device includes a fixed bearing barrel (9) which his fixedly mounted on the mounting plate (28) and surrounds the electric switch requires cooling, a ventilation open hole (91) being formed at the bottom of the fixed bearing barrel (9).

An electric switch installation assembly comprises an installation plate (28) which is fixed on a side wall of a cabinet body (2) of a power distribution cabinet through fastening members (280) and is used for installing electric switches used for power distribution, the electric switches (22) installed on the installation plate (28) and needing to be cooled, and a cooling device used for cooling the electric switches needing to be cooled. The cooling device comprises a fixed bearing cylinder (9), wherein the fixed bearing cylinder is fixedly installed on the installation plate (28) and surrounds the electric switches needing to be cooled, and the bottom part of the fixed bearing cylinder is provided with ventilation openings (91).

The invention provides a liquid injection method for capacitor liquid injection. The liquid injection method comprises the following steps: providing a capacitor to be injected with electrolyte; performing liquid injection on the capacitor for the first time; providing a vacuum device, and vacuumizing the capacitor; and second liquid injection is carried out on the capacitor. When the liquid injection method is adopted to perform liquid injection operation on the capacitor, the vacuumizing process is added between the two liquid injection steps, so that the filling rate of the electrolyte in the capacitor can be ensured, the injection precision of the electrolyte can be ensured, the liquid injection efficiency is ensured, and the use effect is good.

The invention belongs to the technical field of cell injection, and particularly discloses a picoliter-scale liquid injection device for cell injection, and an injection method. The device comprises acell injection module, a motion control module and a microimaging module; the cell injection module comprises a capillary glass tube, an injection needle cylinder, a push rod, an injection displacement table and a needle cylinder fixing block; the motion control module comprises a two-dimensional motion platform and a three-dimensional motion platform; a glass slide for bearing cells to be injected is placed on the two-dimensional motion platform; the injection displacement table and the injection needle cylinder fixing block are connected to the three-dimensional motion platform to realize three-dimensional positioning of the capillary glass tube; the upper end of the injection needle cylinder is connected with the push rod; the lower end of the injection needle cylinder is connected with the capillary glass tube; a push rod fixing piece is used for clamping the push rod; a sliding block is connected with an upper computer; and the upper computer controls the push rod to move to accurately control picoliter-grade liquid injection. The injection device disclosed by the invention is high in injection precision, compact and simple in structure and low in cost.