46results about How to "Avoid affecting performance" patented technology

The utility model provides a secondary battery, a battery pack and an electronic device, the secondary battery comprises: a housing, which comprises a shell and a cover plate, the cover plate covers the opening of the shell, and the cover plate is provided with an explosion-proof valve; the electrode assembly is accommodated in the shell; the current collecting component is in welded connection with the tabs of the electrode assembly and is provided with a plurality of welding areas which are arranged around a central hole of the current collecting component at intervals, each welding area comprises a plurality of welding marks, each welding area is provided with a first end adjacent to the central hole, and each welding mark comprises a second end adjacent to the central hole; a shortest distance H is formed between the first ends of the two adjacent welding areas in the direction around the center hole, and H is larger than or equal to 0.12 D and smaller than or equal to 0.17 D. The flow collecting component further comprises a through groove formed around the center hole, the through groove penetrates through the flow collecting component in the thickness direction of the flow collecting component, the shortest distance T is formed between the first end of the through groove and the center hole in the radial direction of the flow collecting component, and T is larger than or equal to 0 and smaller than or equal to 0.04 3D. According to the technical scheme, at least the flow collecting component can be effectively opened during pressure relief.

The utility model discloses a kind of anti-lodging devices for rice seedling, it is related to rice seedling technical field, including main rod and insertion rod, wherein, two vertical depositing grooves are set up on main rod, a group of equidistance T-shaped sliding slots are set up on the groove wall of each depositing groove, sliding strip is placed in each depositing groove, the middle part of insertion rod is fixed with baffle disc, four ring type arrays of insertion slot are set up on baffle disc, guide rail is fixed in the slot opening of each insertion slot, each guide rail is fixed with sleeve ring, each sleeve ring is movably sleeved with outer expansion rod, the face of sliding strip towards T-shaped sliding slot is fixed with a group of equidistance T-shaped clamping blocks, and elastic net can limit rice plant in safety range in time, effectively prevent lodging, provide sustained, efficient support protection for normal growth of rice, significantly improve the anti-lodging capacity of rice under adverse weather, guarantee rice yield.

The invention discloses a power distribution box convenient for heat dissipation and a use method thereof, and relates to the technical field of power distribution boxes, the power distribution box comprises a case, an air outlet arranged on the case, an air inlet arranged on the case, an access door arranged on the case, a glass window arranged on the access door, a filter device arranged on the case, and an adjusting device arranged on the case, and a cushioning device is arranged on the case. External air passes through a filter screen for certain filtration and dust prevention, the situation that dirt is sucked into the interior to affect the performance of internal equipment is avoided, a person rotates a rotary disc to make a first worm rotate, the first worm rotates to drive a first worm wheel to rotate, the first worm wheel rotates to drive a threaded rod to rotate, and the threaded rod rotates to drive a movable plate to move; the movable plate moves to drive the buckle frame to move, and the buckle frame moves to clamp, fix, separate and disassemble the filter screen, so that the filter screen is convenient to replace and mount.

The utility model relates to PVC calendering film technical field, concretely relates to a PVC calendering film processing and packing integrated assembly line device. Including setting following parts in proper order: granule mixing feeding machine, planetary extruder, filter, swing conveyer, four roll calendering host computer, cooling auxiliary machinery, three roll surface coiler. The utility model discloses through optimizing each mechanism of processing assembly line, more efficiently completes the continuous production of PVC calendering film. Among them, filter removes plasticized material impurity, avoids the influence film performance, cooling auxiliary machinery makes the wave formula uniform cooling of film, prevents deformation, metal separator separates metal impurity, reduces the wear and tear to extruder parts, and four roll calendering host computer sets up roll distance and axle cross -regulation mechanism, and the production parameter can be adjusted flexibly, and three roll surface coiler is equipped with meter, and the film length can be accurately measured.

This utility model discloses a reusable, long-life pre-pump filter, belonging to the field of air purification equipment. The filter mainly consists of a filter cartridge body, a top cover, and a filter medium. A cooling component is installed at the top of the top cover to cool the dust-laden gas, causing changes in the physical properties of dust particles and improving the separation efficiency of dust and gas. The cooling component achieves efficient heat dissipation through a heat-conducting plate, a cooling fan, and heat dissipation fins. A sealing plate is installed at the bottom of the top cover to enhance the sealing performance. The air inlet and spiral groove cooperate to form a spiral airflow that is evenly distributed inside the filter cartridge. The baffles inside the filter cartridge can buffer and guide the airflow, allowing the gas to pass through the filter medium more evenly. The overall structural design is optimized, solving the problems of low filtration efficiency, easy clogging, and insufficient stability and sealing of traditional filters in complex dusty environments. It can effectively purify dust-laden gas and has good application prospects.

The performance of the large-granularity FTL table storage device is optimized based on cache management, and after a first storage command indicating write operation is received, whether a logic address indicated by the first storage command hits a previous storage command or not is detected; when the logic address indicated by the first storage command hits the second storage command, updating the second storage command based on the first storage command, and updating the cache unit index of the corresponding entry in the cache management unit based on the cache unit index of the first storage command, each entry of the cache management unit records a logic address of the storage command and a cache unit index of a cache unit used for storing data to be written of the storage command in an associated manner; and when the logical address indicated by the first storage command does not hit the previous storage command, adding an entry to the cache management unit, and recording the logical address of the first storage command and the cache unit index in an associated manner. According to the invention, the amount of data written into the NVM chip can be reduced, and the performance of the storage device is improved.

This utility model discloses a waterproof shell for an industrial tablet PC, including a shell, a bottom shell, and a front panel. The front panel has mounting holes for mounting a display screen. An annular groove is formed on the mounting surface of the bottom shell. An annular skirt is fixedly mounted on the mounting surface of the front panel. A sealing ring is fixedly mounted on the mounting surface of the front panel and is fitted onto the annular skirt. A heat-conducting component is provided on the shell, and a suspension support component is provided at the rear end of the shell. This utility model effectively prevents moisture intrusion by guiding the annular skirt with the annular groove and sealing it tightly with the sealing ring fitted onto the annular skirt, thus solving the problem of unstable waterproof performance of existing shells.

The application relates to the technical field of movable floors, and discloses a double-layer ventilation and heat dissipation type anti-static movable floor, which comprises a base plate, a plurality of mounting holes are arranged on the base plate, support plates are fixedly connected to the two sides of the top of the base plate, a floor tile body is placed at the bottom of the support plate, a strip-shaped groove is arranged on the periphery of the floor tile body, a rubber strip is mounted in the strip-shaped groove, a plurality of anti-skid blocks are fixedly connected to the top of the floor tile body, the spacing between rock wool boards and the floor tile body is 4CM, heat generated by electronic equipment can be efficiently dissipated, and the performance of the equipment can be effectively prevented from being affected by high temperature or the service life of the equipment can be effectively prolonged; meanwhile, the mounting holes of the base plate enhance the stability of the whole in connection with the ground, the rubber strip on the periphery of the floor tile body improves the sealing property, the anti-skid blocks improve the use safety, the cooperation of the dovetail-shaped mounting grooves and the wedges makes the installation more convenient and the splicing more firm, so that the floor has the advantages of structural stability, efficient installation and the like while ensuring ventilation and heat dissipation.

The application relates to a numerical control lathe guide rail cleaning device which comprises a guide rail and a tool holder slidably installed on the guide rail, scrapers are detachably installed at the two ends of the tool holder, the scrapers are slidably connected with the outer surface of the tool holder, and a baffle cover is fixed to the inner side of each tool holder. The scrapers at the two ends of the tool holder can be moved along with the tool holder to preferentially scrape off impurities on the two sides of the guide rail. Meanwhile, the scrapers drive flexible bristles to clean impurities on the upper surface of the guide rail, so that iron filings, dust and other pollutants on the guide rail are completely removed, equipment damage caused by friction between the impurities and the guide rail is avoided, the service life of the guide rail and the tool holder is prolonged, the heat dissipation fan blades in the baffle cover can synchronously rotate along with the movement of the tool holder and the scrapers, the circulation and exchange of air in the baffle cover and the outside through the gap are accelerated, the temperature between the baffle cover and the end of the tool holder is effectively reduced, and the performance of the equipment is prevented from being affected or parts are prevented from being aged due to excessive heat.

This invention discloses a polyvinylidene fluoride (PVDF) resin, its preparation method, and its application. The preparation method includes the following steps: (1) preparing PVDF resin emulsion particles by emulsion polymerization of PVDF monomer; (2) adding a reducing agent and a fluorinated solvent to the obtained PVDF resin emulsion particles; (3) adding PVDF monomer, a dispersant, and an oil-soluble initiator to the emulsion obtained in step (2), and then heating to carry out a suspension polymerization reaction; (4) separating the product after the suspension polymerization is completed to obtain the PVDF resin. The PVDF resin of this invention has high flexibility, high product purity, and high adhesion.

The invention provides a large-granularity FTL table storage device supporting a low-case storage command, which comprises the following steps: when a received first storage command indicating a write operation is a low-case storage command, constructing a first storage command group comprising a virtual storage command and a storage command in a continuity detection unit, and adding the first storage command group to a second cache; detecting whether the lowercase storage command hits the previous storage command; if the lowercase storage command does not hit the previous storage command, constructing a second storage command group comprising the virtual storage command and the lowercase storage command, and adding the second storage command group to a second cache; and if the lowercase storage command hits the previous second storage command, merging data to be written by the lowercase storage command and the second storage command, and updating the second storage command based on the lowercase storage command. After the storage command group is constructed for the storage commands in the continuity detection unit, hit detection is performed on the lowercase storage commands, and the storage command group is constructed or the storage commands are updated based on the detection condition, so that the storage commands are processed in a proper manner.

The embodiment of the utility model provides a heating element testing device. The heating element testing device comprises a piece taking mechanism, a bearing mechanism and a detection mechanism. The piece taking mechanism comprises a piece taking head, and the piece taking head is used for taking a heating element to be tested; the bearing mechanism comprises a carrier, and the carrier is used for bearing the heating element taken by the material taking head; the detection mechanism comprises a test plate and a test coil, the test coil is arranged at one end, close to the carrier, of the test plate, at least part of the heating element enters the test coil, and the performance of the heating element arranged on the carrier is tested through the test coil and the test plate. According to the heating element testing device provided by the embodiment of the invention, the testing time can be shortened, the production efficiency can be improved, and the heating element can be prevented from being deformed in the testing process to influence the performance by utilizing a machine in a vacuum adsorption and flexibility mode.

The utility model provides a kind of folding type neck-hung wireless earphone, belong to wireless earphone technical field, including left neck-hung column and right neck-hung column and earphone body, left neck-hung column and right neck-hung column side are equipped with instrument box, left neck-hung column and right neck-hung column side are equipped with connector, and a plurality of connectors are provided with connecting post, left neck-hung column and right neck-hung column are rotatably connected by connecting post, right neck-hung column is provided with charging port, a plurality of instrument boxes are equipped with instrument connecting plate, a plurality of instrument connecting plates are equipped with battery, a plurality of earphone bodies are connected with instrument connecting plate, a plurality of instrument boxes are equipped with winding base station, winding base station is provided with rotating shaft, rotating shaft is equipped with winding frame, earphone body line body is wound on winding frame, rotating shaft side is equipped with rotary knob.The device is equipped with winding base station, rotating shaft, winding frame and rotary knob, and the user can manually wind earphone body line body, which improves the convenience of the device to arrange earphone line.

According to the method for reducing the DRAM overhead of the storage device through the large-granularity FTL table, after a storage command is received, an entry index corresponding to a logic address i in the FTL table is determined according to the logic address i carried by the storage command, and the FTL table comprises a plurality of entries; the logical address space size indicated by each entry of the FTL table is N times of the logical address space size indicated by the storage command, and the value of N is an integer greater than or equal to 2; the FTL table is inquired according to the entry index, a first physical address is determined, and the first physical address is associated with N data units in the NVM chip; and accessing a data unit associated with the storage command in the NVM chip according to the first physical address. By changing the organization mode of the FTL table, the high performance of the FTL table is kept while the DRAM storage space occupied by the FTL table is reduced.

The utility model provides a kind of electrode assembly and battery, the electrode assembly of utility model embodiment is winding type structure, electrode assembly includes mutually insulated first pole piece, second pole piece and diaphragm, the diaphragm is spaced between first pole piece and second pole piece;The innermost circle of first pole piece includes first corner section, and first corner section is oppositely arranged with the winding start end of second pole piece;The innermost circle of second pole piece includes second corner section, and second corner section is oppositely arranged with the winding start end of first pole piece;In the length direction of electrode assembly, the maximum distance between first corner section and second corner section is D1, the distance between the winding start end of first pole piece and the winding start end of second pole piece is D2, D1, D2 satisfy 1mm≤D1-D2≤10mm.The winding structure of the electrode assembly of utility model embodiment is suitable in tightness, can avoid the problem that winding structure appears too tight or too loose, and then can avoid affecting the performance of battery.

The utility model relates to instrument and meter technical field discloses a kind of liquid level transmitter of preventing floating ball from falling off, including connecting pipe, the connecting pipe outer wall is provided with quick release assembly, the connecting pipe outer wall is provided with moving assembly, the quick release assembly includes button, the button is set in connecting pipe outer wall, the button inner wall is slidably connected with fixed round block, the fixed round block inner wall is fixedly connected with moving module, the moving module inner wall is slidably connected with moving rod, the moving rod outer wall is fixedly connected with sealing strip two, the moving module inner wall is slidably connected with fixed buckle.In the utility model, first, press button to push and be connected with the moving rod and spring one-one with moving, fixed buckle and moving rod are fixedly moved in moving module, moving module plays an important role of guiding here, solve the obvious defect of the connecting structure of floating ball and connecting rod, lead to the problem that floating ball is easily fallen off.

The invention discloses a given hand wheel for controlling a petroleum drilling machine. The given hand wheel comprises a mounting frame; the core shaft is vertically arranged in the mounting frame; the potentiometer is arranged at the lower part of the mounting frame, and a rotating shaft is connected with the bottom of the mandrel; the hand wheel cover is arranged at the upper part of the mounting frame and connected with the top of the mandrel; the microswitch in a normally closed state is arranged in the mounting frame, and a switch triggering part of the microswitch is in corresponding contact with the core shaft, so that the core shaft can trigger the microswitch when rotating; and the butt joint terminal is arranged in the mounting frame, a socket of the butt joint terminal is connected with an output line of the potentiometer, and a plug is connected with an external line, so that a signal intermediate transmission effect is achieved.

The utility model discloses an anti-deformation structure of a mounting frame. The problem that an existing support is prone to deformation during installation, and consequently a product loses efficacy is solved. The device comprises a mounting frame, the cassette is used for mounting and fixing the mounting rack; the fixing piece is arranged on the cassette; the limiting piece is arranged on the fixing piece; the mounting screw penetrates through the mounting frame and the limiting piece to be connected with the fixing piece, so that the mounting frame and the cassette are fixed, and one end of the limiting piece exceeds the cassette and is flush with the wall or protrudes out of the wall and abuts against the bottom of the mounting frame to be used for limiting the mounting frame when the mounting frame is mounted. The utility model has the beneficial effects that the limiting piece is arranged, the mounting screw penetrates through the limiting piece, and when the mounting screw fixes the mounting rack, the limiting piece is propped against the bottom of the mounting rack for limiting the mounting rack, so that the mounting rack is reliably limited and is not easy to deform, and the influence on the product performance caused by the deformation of the mounting rack is avoided.

The application provides a storage procedure performance tracking method under a distributed database, comprising the following steps: defining a tracking element; tracking sql execution based on the tracking element to obtain a sql_history table; defining a show_procedure interface; recursively tracking the sql_history table based on the show_procedure interface to track the execution of a storage procedure and obtain a tracking statistical table of the storage procedure; based on an enable_track_sql parameter, starting or stopping the tracking function of the sql and the storage procedure; based on the tracking statistical table of the storage procedure, determining the id of the sql affecting the performance of the storage procedure; and based on the id of the sql, analyzing the time consumption distribution of the sql. The application has the beneficial effects of adding statistical information at key nodes of a sql engine, adding parent-child relationship statistical information of the sql and the storage procedure, providing an interface to sort the statistical information of each sub-sql of the storage procedure, and providing a switch to track and avoid affecting the performance.

The invention discloses a network sharing method and electronic equipment, and the method comprises the steps: enabling a network bridge node to be in bridge connection with an external network port, and enabling the network bridge node to be in bridge connection with an internal network port; the forwarding configuration of the first system module is changed, so that a network signal can be sent to the second system module through the external network port, the network bridge node and the internal network port, and the second system module can be networked through the internal network port; and changing the configuration of the external network port and the configuration of the network bridge node, so that the first system module can be networked through the network bridge node. The network sharing method and the electronic equipment provided by the invention have the advantages of normal use of the local application and good equipment performance.

The utility model relates to paint filling technology field, concretely is a kind of paint filling device for paint production, including frame, box, lifting mechanism, iron sheet and connecting mechanism, the box is connected with the frame by the lifting mechanism, the lifting mechanism includes telescopic cylinder, sliding slot and sliding block, the sliding slot is opened in the frame inner wall, the sliding block one end is connected with the box side, the sliding block other end is inserted into the sliding slot, the telescopic cylinder one end is connected with the frame bottom wall, the telescopic cylinder other end is connected with the box bottom, the iron sheet is connected with the box top by the connecting mechanism, the iron sheet top is equipped with liquid inlet subassembly, the box bottom is equipped with liquid outlet subassembly, the connecting mechanism includes locating piece, slot, electric push rod, clamping block and slot, a kind of paint filling device for paint production of the utility model, solve the problem of current equipment inconvenient cleaning.

This utility model discloses a skin care device, including a main unit, an auxiliary head, and at least one filter. The main unit has a light source assembly and a light outlet for emitting light from the light source assembly. The auxiliary head has a light path channel corresponding to the light outlet. A filter is detachably mounted at at least one of the light outlet and the light path channel. The auxiliary head is detachably connected to the main unit to cover the filter. The auxiliary head and main unit of this application are detachably connected, allowing for a tight seal of the filter in the installed state, forming a physical protective barrier. Compared to traditional exposed filter structures, the sealing of the main unit or auxiliary head effectively prevents the filter from shifting due to external impacts. It also effectively blocks dust from entering, preventing dust from affecting light transmittance and filter performance, ensuring stable spectral filtration accuracy, and improving the cosmetic effect. Furthermore, the detachable structure of the auxiliary head and main unit facilitates filter replacement and equipment maintenance, improving the effectiveness of the skin care device.

The application discloses a kind of bubble cleaning devices for pickled vegetable production and processing, including cleaning box, bubble generation structure, rotating structure and filter structure.The even bubble flow is formed by shunt pipe, air pump and filter plate on both sides of cleaning box, rotation stirring is realized by first rotating cage and second rotating cage in the middle, and the filter structure on both sides drives cleaning filter barrel to lift and drain by hydraulic telescopic rod.The device improves the cleaning efficiency of pickled vegetables through the synergistic effect of bubble impact force, water flow turbulence effect and mechanical rotation, while having characteristics such as detachable maintenance, convenient filtering, and is suitable for industrial production scenes.

The utility model discloses a concrete vibrating device, and relates to the technical field of building construction. The device comprises a handle, one end of the handle is fixedly connected with a hose, and the other end of the hose is fixedly connected with a vibrating rod; a driving assembly is arranged in an inner cavity of the vibration rod. The ultrasonic motor is adopted to replace a traditional electromagnetic motor, electromagnetic noise generated by the traditional electromagnetic motor is avoided from the source, meanwhile, the sound control sensor is used for monitoring the noise condition of the surrounding environment in real time, and when the noise exceeds a preset threshold value, a variable-frequency electric appliance in the feedback control assembly feeds back signals according to the sound control sensor; according to the utility model, the signal output to the vibration frequency speed regulation plate is adjusted, and then the current frequency output to the ultrasonic motor is adjusted in real time, and the vibration frequency of the vibration rod is changed, so that the purpose of reducing noise is achieved, the noise can be controlled at a lower level even in high-strength vibration operation, and the influence on the surrounding environment and constructors is greatly reduced.

This invention discloses a method for drying raw materials using waste heat from a sintering brick kiln, relating to the field of sintering brick raw material drying technology. The invention first constructs a material pre-drying platform on the top surface of the tail section of the sintering brick kiln, places the material on the pre-drying platform, and opens a connecting opening at the top of the tail section near the brick outlet. The dryer is then mounted above the connecting opening, and an insulation structure is installed outside the drying equipment. This invention utilizes the waste heat of the kiln to pre-dry the raw materials, removing most of the moisture, before they enter the dryer for further drying. The waste heat from the kiln tail section is discharged through the connecting opening, acting on the dryer cylinder, and then conducted to the material inside the dryer. This isolates the kiln flue gas from contact with the material, preventing impact on the material's properties and sulfur content. The insulation structure also prevents flue gas escape and facilitates temperature control during drying.

The utility model belongs to the technical field of electric power and electricity, and particularly relates to a tachometer multi-range fast switching device which comprises a cabinet body, a fixing column is fixedly connected to the left side of the inner bottom wall of the cabinet body, a motor is installed on the top of the fixing column, a crank is fixedly connected to the output end of the motor, a fixing block is installed on the outer side of the crank, and a rotating shaft is installed on the fixing block. The cranks are rotationally connected to the inner sides of the fixing blocks, and the upper sides and the lower sides of the fixing blocks are fixedly connected with supporting rods. According to the utility model, the crank drives the mounting block to rotate so as to drive the fan at the tail end of the mounting block to rotate, and the fan can stably rotate in multiple directions, so that air is blown to the interior of the cabinet body at different angles, the heating plate is started to generate heat, the fan blows air, and the temperature of the air passing through the heating plate is rapidly increased; and the fan continuously rotates to blow hot air to the electronic components, so that uniform coverage of heat is ensured, the temperature in the cabinet body is increased, and moisture in the cabinet body is dried.

The utility model relates to the related technical field of container type water purification equipment, one embodiment of the utility model provides a purification device convenient to transport, the purification device comprises a bottom plate and an integrated purification equipment main body, the integrated purification equipment main body is mounted on the bottom plate, a supporting moving assembly is arranged on the bottom plate, and the supporting moving assembly comprises a pair of stand columns; the pair of stand columns is arranged on the two sides of the bottom plate, corner protection blocking frames are arranged at the four opposite corners of the surface of the bottom plate, and the corner protection blocking frames are attached to the four opposite corners of the integrated purification equipment body. The technical problems that in the prior art, large transport vehicles and professional hoisting equipment are needed during transportation, and under many conditions, due to limitation of transport channels and site space, large equipment is difficult to reach a designated position, and consequently the equipment is difficult to transfer are solved.

The utility model discloses a kind of cleaning devices for injection mold inner cavity, including box, clamping assembly is arranged in the box, fixed plate is fixedly installed in the box, the top side of fixed plate is equipped with sliding slot, multiple sliding plates are slidably installed in sliding slot, the top side of multiple sliding plates is fixedly connected with same gear ring, by two electric push rods drive clamping plate to move towards each other, cooperate with the antiskid structure of protective pad, different specifications of mold body can be formed stable clamping, avoid shaking influence effect in cleaning process, cylinder drives mold body to descend vertically, make cleaning cylinder extend into inner cavity, the meshing transmission of transmission gear and gear ring ensures that cleaning cylinder high -speed rotates, outside brush can remove adherent stain by scrubbing, cooperate with the combination of water pump in water pumping component, suction pipe, delivery pipe and spray head, water flows through the through-hole of cleaning cylinder and is directly shot into inner cavity, form the synergistic effect of scrubbing and flushing, compared with traditional single flushing mode, cleaning speed and efficiency can be greatly improved.

The invention relates to the technical field of optical isolators, and particularly discloses an optical isolator with a high-efficiency heat dissipation structure, and the optical isolator comprises a liquid cooling channel which is disposed between an outer housing and an inner housing, and the liquid cooling channel comprises a first channel and a second channel; the first connector is installed on the shell, the first connector is connected with the first flow channel, the first connector comprises a first liquid inlet pipe and a first liquid outlet pipe, and the first liquid inlet pipe and the first liquid outlet pipe are communicated with the two ends of the first flow channel respectively; the shell is provided with a first connector and a second connector, the second connector is installed on the shell and connected with the second flow channel, the second connector comprises a second liquid inlet pipe and a second liquid outlet pipe, and the second liquid inlet pipe and the second liquid outlet pipe are communicated with the two ends of the second flow channel respectively. According to the optical isolator assembly, the bidirectional flow channel is arranged, and the liquid inlet ends of the cooling liquid are located at the two ends, so that the two strands of cooling liquid can complement each other during flowing, the heat dissipation of the optical isolator assembly is uniform, and the influence of uneven heat dissipation on the performance of the optical isolator assembly is effectively avoided.

The utility model discloses board collecting equipment, which relates to the technical field of PCB (printed circuit board) production and comprises a frame. The plate collecting mechanism is arranged on the rack, and a plurality of storage groove sets are arranged on the plate collecting mechanism at intervals; the conveying mechanism is arranged on the rack, and at least one PCB is borne on the conveying mechanism; the transferring mechanism is arranged on the rack, and the transferring mechanism is used for correspondingly transferring the PCBs carried on the conveying mechanism into the containing groove set; and the number of the clamping assemblies is at least one, and each clamping assembly corresponds to one containing groove set so as to clamp the PCBs when the PCBs are stored in the containing groove sets. According to the PCB storage device, the situation that the PCB is directly contacted during storage, so that the surface of the PCB is abraded, and the performance is influenced is avoided, the PCB can be kept at the same vertical reference position in the storage groove group, the deviation of the board taking position in the subsequent process is avoided, and the working efficiency is improved.