57results about How to "Avoid compromising reliability" patented technology

The invention discloses a refrigerant volume control method for a modular water cooler. The refrigerant volume control method for the modular water cooler includes the steps of obtaining the temperature of outdoor environment, setting an initial opening of an electronic expansion valve according to adaptability of the temperature of the outdoor environment to adjust the electronic expansion valve, and setting an opening degree adjusting range of the electronic expansion valve according to the adaptability of the temperature of the outdoor environment; and obtaining the present superheat degree of the system, and adjusting the opening degree of the electronic expansion valve according to the adaptability of the present superheat degree. The opening degree of the electronic expansion valve can adapt to the current temperature condition so that the system can stably start working, the adjusting time is effectively shortened to rapidly reach the stable status, the adjusting range of the electronic expansion valve is preset so that the system reliability influenced by out of control of the electronic expansion valve adjustment in some abnormal status can be avoided; by adjusting the refrigerant volume through the adaptability of the superheat degree of the system, the refrigerant volume of the system can be controlled to operate in a position close to the optimal performance point, so that the superheat degree of the system is controlled, the reliable operation of the system is guaranteed, and the condition that a compressor operates with carrying liquid is avoided effectively.

The invention discloses a power factor correction circuit control parameters adjusting method and device, and air conditioner. The method for adjusting the control parameters of the power factor correction circuit comprises the following steps of acquiring preset control parameters of a proportional-integral controller in the power factor correction circuit; controlling the power factor correction circuit so as to run the preset control parameters; detecting whether the power factor correction circuit works abnormally or not; if the abnormal working of the power factor correction circuit is detected, adjusting the preset control parameters. Through the method, the device and the air conditioner disclosed by the invention, the problem that a product cannot go on normally running when the circuit is abnormal due to the fact that the control parameters of the power factor correction circuit cannot be adjusted adaptively in the prior art is solved.

The invention discloses a luminous device, which comprises the following parts: base, first metal layer, at least one luminous element and insulating layer, wherein the first metal layer lies on the base; the insulating layer is set on the first metal layer with luminous element on the insulating layer.

The invention discloses a safety protection method of the software integrity of a cryptographic machine, and relates to the technical field of information safety codes. The safety protection method of the software integrity of the cryptographic machine is characterized by comprising the first step of generating check codes of the software integrity, wherein production personnel send a generation instruction of the check codes of the software integrity to the cryptographic machine through an external management interface, the cryptographic machine transmits byte streams of all software codes, firmware and property files inside the cryptographic machine to a safety storage, and the safety storage carries out check code calculation on the input byte streams to obtain the check codes of the software integrity; the second step of checking the software integrity, wherein the cryptographic machine is started, the cryptographic machine transmits the byte streams of all software codes, the firmware and the property files inside the cryptographic machine to the safety storage for check code calculation, the safety storage judges whether the newly calculated check codes of the software integrity and the check codes, on the safety storage, of the software integrity are uniform or not, if yes, the cryptographic machine starts to work, and if not, the cryptographic machine stops starting.

The embodiment of the invention provides a method and a device for processing system crash. The method comprises the following steps: the system starts to perform a crash processing flow after system crash; in the performing process of the crash processing flow, whether the crash processing flow is performed correctly is judged according to a preset policy; if the crash processing flow is performed correctly, a dog feeding operation is performed on a watchdog so that the crash processing flow can be completed; if the crash processing flow is not performed correctly, the watch dog is triggered to reset the system so that the performing of the crash processing flow can be terminated. According to the method for processing system crash, when the crash processing flow is performed correctly, the crash processing flow can be performed completely; when the crash processing flow is not performed correctly, the watchdog is triggered to reset the system so that the reliability of the system cannot be affected.

The invention discloses a mechanically coupled flywheel assisted composite energy storage system and a control method thereof. The system comprises a flywheel module and a compressed air energy storage module. The flywheel module is connected to a rotating disc through a continuously variable transmission when a clutch is closed, and the rotating disc achieves pre-synchronization with the flywheelspeed by motor acceleration. The rotating disc is connected to a reciprocating compressor, the reciprocating compressor is connected to the compressed air energy storage module, and the compressed air energy storage module compensates an intermittent power supply by connecting a generator. The flywheel energy storage and the compressed air energy storage adopt a mechanically coupled parallel structure. By collecting the flywheel speed, the clutch switch and the compressed air energy storage working state are determined, and the control strategy is simple and easy to operate and achieve.

The invention relates to the technical field of heat exchange devices, in particular to a heat exchanger radiating pipe and a heat exchanger. The heat exchanger radiating pipe comprises a pipeline body and a pit part arranged on the outer wall of the pipeline body; the pit part comprises at least one pit in strip-shaped extending; and the extending directions of the pits are arranged at an acute angle or an obtuse angle with the extending direction of the pipeline body. Due to the fact that the extending directions of the pits are arranged at the acute angle or the obtuse angle with the extending direction of the pipeline body, the extending directions of the pits are avoided to be perpendicular to the extending direction of the pipeline body, then the flowing resistance of a medium can bereduced, so that the damage to a pump caused by bubbles which are caused by the high pressure loss is avoided, and the reliability of a system can not be influenced due to the fact that the working pressure of the system is increased which is caused by higher pressure loss. Moreover, the pits are in strip-shaped extending and are obliquely arranged relative to the extending direction of the pipeline body so that a vortex can be formed more easily, forming of a turbulent flow by the medium in the pipeline body is more facilitated, and therefore the heat exchange performance is improved.

The invention discloses a nuclear medicine diagnosis device and a cooling method thereof. The nuclear medicine diagnosis device comprises an outer cover, a machine frame, a plurality of detector unitsand a plurality of signal processing units; a cavity is formed by the outer cover and the machine frame for containing the detector units and the signal processing units. The cooling method comprisesthe following steps that: obtaining the current temperature value of each detector unit; comparing the current temperature value of each detector unit with a preset temperature value to obtain a detector unit of which the current temperature value is greater than or equal to the preset temperature value as a high-temperature detector unit; and cooling the high-temperature detector unit. The cooling method or a disclosed cooling device has a temperature detection control capability, so that the temperature balance of each detector unit is relatively high, and the imaging performance of the nuclear medicine diagnosis device is ensured.

The invention relates to the technical field of railway components, and discloses a hoisting device capable of avoiding stall in the hoisting process by utilizing a centrifugal force effect. The hoisting device comprises a mounting base, the top of the mounting base is fixedly connected with a fixing plate, the front face of the fixing plate is fixedly connected with an arc-shaped block, the top of the arc-shaped block is provided with a limiting groove, and a driving shaft is movably connected to the interior of the fixed plate. According to the hoisting device capable of avoiding stall in the hoisting process under the centrifugal force effect, when the stall situation occurs, a fixed contact makes contact with a movable contact under the centrifugal force effect at the moment, the driving shaft is further made to stop rotating, and therefore the effects that a pay-off shaft of the railway track hoisting device is prevented from slipping, and a steel rail is prevented from falling to hurt people are achieved. The movable contact and the fixed contact are electrically connected with an electromagnetic device so that the overall reaction speed of the device can be increased, the reaction delay of the hoisting device is reduced, and the effect of effectively avoiding the influence of the reaction delay on the reliability of the device is achieved.

The invention relates to a flaw detection mechanism and a flaw detection scanning device, a flaw detection structure is driven to move through a first moving structure, so that the flaw detection structure gets close to a workpiece, and the flaw detection structure can perform flaw detection on the workpiece. When the workpiece has a slope surface or an arc-shaped surface, a first driver is started, and a probe is transmitted through a swinging assembly, so that the probe swings on a first mounting seat, the mounting angle of the probe is changed, and one end of the probe can be aligned to the normal direction of the slope surface or the arc-shaped surface of the workpiece; therefore, the probe can perform effective flaw detection on the workpiece, the detection application range is effectively widened, and the use performance of the device is improved. Meanwhile, the first driver and the probe of the flaw detection mechanism are separated, and the first driver and the probe are in transmission through the swing assembly, so that the situation that the first driver enters water and directly drives the probe to cause driving vibration or driving electric field to interfere flaw detection is effectively avoided, and the influence on the reliability of a flaw detection result is avoided.

The invention relates to accessories for power equipment, and in particular relates to a contact box and a switch cabinet using the contact box. The contact box includes a box body and a ventilation passage which runs through the entire box body. When the box body is used, a heat dissipation hole is arranged at a position directly above the cooperation site of a moving contact and a static contact. A retaining wall is arranged on the edge, which is close to a cabinet board, of the heat dissipation hole in use. The box body is provided with a partition member corresponding to the heat dissipation hole. The partition member divides the heat dissipation hole into more than two heat dissipation channels. The switch cabinet comprises a cabinet body and the contact box. The static contact is fixedly connected in the contact box. The moving contact is cooperatively connected with the static contact in the contact box. The contact box adopting the structure has high heat dissipation efficiency, and at the same time avoids the influence of an electric field on the electrical performance of the contact box when the hole is arranged above the cooperation site of the moving contact and the static contact. When the contact box is placed in the switch cabinet, the contact box can meet the requirements of the protection level and is very practical.

The invention discloses a traveling wave tube slow wave system and a traveling wave tube comprising the same, and a traveling wave tube transceiver module. The slow wave system includes a spiral line,a first port used for inputting a signal to be amplified, a second port used for outputting the amplified signal and receiving an antenna return signal, and a third port used for outputting the received signal, wherein the ports are coupled to the spiral line, and the third port is arranged between the first port and the second port and near the first port. Compared with the traveling wave tube slow wave system containing two energy transmission ports in the prior art, the traveling wave tube slow wave system provided by the invention is additionally provided with a received signal output port, the signal transmitting and receiving function of the traveling wave tube can be achieved, the cascade structure of the existing T/R module is simplified, the miniaturization of information processing equipment is promoted, and the production cost is reduced. Moreover, the influence of the performance limitation of high-power switches on the whole system is avoided, and the system performance and reliability are improved.

The invention relates to a method for chemically plating metal on a copper substrate, a printed circuit board and a wafer prepared by the method. The method for chemically plating metal on the coppersubstrate comprises the following steps: oil removal, micro-etching, preimpregnation, activation and chemical metal plating; and the surface temperature of the printed circuit board being reduced to below 20 DEG C before the step of activation. According to the method, diffusion coating phenomenon is effectively prevented on the basis of not changing the formula of a bath solution in each step inan existing process.

The invention relates to the technical field of false tooth machining equipment and discloses a pure titanium casting machine with a positioning function for false tooth machining. The pure titanium casting machine comprises a pure titanium casting machine main body, wherein a supporting plate is fixedly connected to the lower surface of the pure titanium casting machine main body; universal balls are fixedly connected to the lower surface of the supporting plate; a bottom plate is fixedly connected to the lower surfaces of the universal balls; an outer cover and a U-shaped plate are fixedly connected to the upper surface of the bottom plate; the U-shaped plate is located in the outer cover; a rectangular through hole is formed in the side wall of the outer cover; and a side door is hinged to the hole wall of the rectangular through hole. The pure titanium casting machine with the positioning function for false tooth machining has the horizontal positioning function, the situation that the reliability of false tooth machining is affected due to shaking of the pure titanium casting machine can be avoided, the pure titanium casting machine further has the functions of automatic false tooth grinding and polishing and dust treatment, time and labor are saved in the false tooth machining process, the false tooth machining efficiency is improved, and the labor intensity of workers is also reduced.

The invention discloses an ultrafast automatic sampling switching system which comprises a cabinet and a centralized control screen, a negative pressure fan is longitudinally arranged at the bottom end of the inner wall of the cabinet on the rear side of an isolation cabinet door, and the inner wall of the cabinet above the negative pressure fan is divided into a left analysis chamber and a right sampling chamber. A first sampling box, a second sampling box and a sampler are sequentially and longitudinally arranged on the inner wall of the right sampling chamber on the outer side of the gas receiving guide plate from bottom to top, a purging device is vertically arranged on the inner wall of the right sampling chamber above the sampler, and PN2PURGE, TOC ON-LINE, IC ON-LINE and Ultra-fast AMCON-LINE are sequentially and fixedly arranged on the inner wall of the left analysis chamber from bottom to top. The centralized control screen is transversely arranged in the middle of the upper surface of the isolation cabinet door at one end of the cabinet away from the observation window. According to the present invention, the Ultra-fast AMC ON-LINE is adopted to increase the sample collection data amount while the overall reaction time of the analysis instrument equipment is shortened, and the purging device is arranged on the inner wall of the right sampling chamber above the sampler so that the influence on the reliability of the subsequent detection due to the residue after the sample switching can be effectively avoided, and the use effect is good.

The invention discloses an engine box body positioning structure which comprises a supporting base and a shielding plate. A positioning base is connected to the supporting base. A locking rod is connected to the positioning base. A locking rod elastic part is also arranged on the positioning base. A shielding extension section is further arranged at the side end of the shielding plate. A locking groove capable of being matched with a locking block is formed in the bottom end of the shielding plate. The locking groove is formed in the manner that an opening is small and an inner cavity is large. The locking block can penetrate through the opening of the locking groove to be located in the inner cavity of the locking groove. The locking block can rotate in the inner cavity of the locking groove. According to the structure, by arranging the locking rod and the shielding plate, the shielding plate can be locked to the top end of a shell box body only by moving and rotating the locking rod,in this way, the shell box body can be positioned, the shielding plate can also be positioned, and the situation that the shell box body and the shielding plate move accidentally is avoided. By meansof cooperation between a magnetic part and a metal part, positioning stability can be further improved.

The invention provides a micro miscellaneous potato floating crushing device for a light and simple potato segmented harvester. The micro miscellaneous potato floating crushing device comprises a mounting rack, a feeding device, a crushing device and a floating detection device, and is characterized in that the crushing device comprises a land wheel shaft, a land wheel, a driving shaft, an extrusion wheel, crushing knives and a driving motor; the land wheel and the extrusion wheel are located in the same plane; a lower bus of the extrusion wheel is 50-100 mm higher than the lower bus of the land wheel; a plurality of J-shaped crushing knives are mounted on a hub of the extrusion wheel; the extending end of a driving shaft provided with the extrusion wheel after penetrating through a floating arm I is connected with an output shaft of a driving motor mounted on the floating arm I through a coupler; the end of a cylinder rod of a hydraulic cylinder of the floating detection device is hinged and fixed to a floating arm II; and the end of a telescopic rod of a linear displacement sensor is hinged to the floating arm II and is close to the hinged position of the cylinder rod of the hydraulic cylinder on the floating arm II. The micro miscellaneous potato floating crushing device for the light and simple potato segmented harvester can automatically crush micro miscellaneous potatoes,and is smooth in obstacle avoidance, efficient in crushing, high in practicability and good in working reliability.