79results about How to "Lost in time" patented technology

The invention provides a recycling device of an organic solvent in a high-concentration organic waste gas. The recycling device comprises a multi-layer fluidized bed adsorption column, an adsorbent conveying system, a desorption column and a condensing column, wherein the middle section in the fluidized bed adsorption column is separated into 3-15 layers via gas distribution plates, and the layer height is 600mm-1200mm; the bottom of the fluidized bed adsorption column is provided with an air stream inlet and is connected with a waste gas fan; the top of the fluidized bed adsorption column is provided with a cyclone separator with a purified gas outlet and a spiral feeding device; irregular hard nut shell active carbon with the particle size of 40 meshes-70 meshes acts as an adsorbent and flows inside to adsorb waste gas, and the adsorbent flows from the upper layer to the lower layer via an external overflow pipe; nitrogen at 165 DEG C-190 DEG C in the desorption column acts as a desorption gas, and can be recycled. The device not only can solve the difficulty that a bed layer is fired and exploded since reaction heat cannot dissipate due to ultrahigh concentration of a high-concentration organic waste gas at present, and also can reduce the solvent recycling cost.

The invention provides a mechanical footboard loss detecting device and a passenger conveyor with the same. The footboard loss detecting device comprises a rotating shaft, a first rotating arm, a second rotating arm, a contact roller, a resetting mechanism and a sensor, wherein the contact roller is arranged at an extending end of the first rotating arm and is in rolling contact with the lower surface of a footboard of the passenger conveyor so that the second rotating arm is placed at a non-alarm position, the resetting mechanism comprises an elastic part for leading the second rotating arm to move to an alarm position, the sensor is arranged on the movement trace of the second rotating arm, and the second rotating arm contacts with the sensor when moving to the alarm position, so that the sensor generates a footboard loss alerting signal. The mechanical footboard loss detecting device continuously contacts with the lower surface of the footboard through the contact roller, when the footboard is lost, an empty space is generated at the position of the footboard, the contact roller is not pressed, the second rotating arm rotates to press the sensor under the action of spring force, and the sensor generates the footboard loss alerting signal, so that loss of the footboard can be timely detected.

The invention relates to a solar cell module, in particular to a reinforced solar cell module. The reinforced solar cell module comprises toughened glass, a solar cell film and a back plate, wherein packaging materials EVA (Ethylene-vinyl Acetate Copolymer) are respectively arranged between the toughened glass and the solar cell film and between the back plate and the solar cell film; a reinforcing part is arranged on the external side of the back plate; and the back plate is combined together with the reinforcing part by heat conducting silica gel. The invention also relates to a making method of the reinforced solar cell module, which comprises six steps of cell film front-face welding, cell film back-face series welding, laying, laminating, laminated piece reinforcing and framing. The reinforced solar cell module is finally obtained by using the making process. Because the back of the module is additionally provided with a reinforcing part having a supporting reinforcing effect, the bending phenomenon of the module is obviously improved and the strength of the module is also enhanced. In addition, because the reinforcing part is provided with good heat radiation property, the normal power output of the module is assured.

The invention discloses a method and device for preventing a message from being lost in video playback. The method comprises the steps: calculating the I-frame code rate of an I frame in storage equipment during video storage according to a storage code rate, a time period and a playback time needed by a client, and storing the I-frame code rate in a database; controlling the transmission code rate of a network media stream through the call of the I-frame code rate, corresponding to the corresponding time, in the database during double-speed playback; further reducing the transmission code rate through reducing the extraction amount of I frames when the playback is not smooth; enabling the transmission rate of the network media stream to be less than the minimum bandwidth of the network, thereby enabling the transmission code rate of the network media stream on a high-speed link to be less than the forwarding speed of a low-speed link; enabling data in a buffer memory of switch equipment to be able to timely transmitted outwards, and enabling the data which is subsequentially sent to the buffer memory of switch equipment not to be lost, thereby solving discontinuous playback phenomena of a video.

An enhanced aluminum matrix composite brake block is made of raw materials by mixing, hot-press molding and curing processes. The raw materials include, by weight, 20-30 parts of cast aluminum alloy ZAlsi8MgBe powder, 8-10 parts of silicon carbide, 6-8 parts of potassium titanate fibers, 5-6 parts of aramid fibers, 1-2 parts of glass fibers, 5-6 parts of zirconium oxide, 3-4 parts of tetrapod-like zinc oxide whiskers, 1-2 parts of molybdenum disulfide, 1-2 parts of barium sulfate and 1-2 parts of tungsten carbide. Steel is replaced by aluminum alloy in base materials, and heat dissipation performance of the aluminum alloy is much higher than that of the common steel, so that heat generated from brake friction can be dissipated timely, the surface temperature of the brake block is lowered, heat recession under high temperature is alleviated, and wear rate is small; meanwhile, as is shown in experiments, apparent noise can hardly be heard inside a vehicle when the brake block is used with noise frequency under 450Hz.

The invention discloses a high-performance composite brake disc material, the wear resistant material comprises the following raw materials: bisphenol a novolac epoxy resin, diaminodiphenyl sulfone, hollow microspheres, a lubricant, a silane coupling agent, diamine, an imidazoles compound, an anti-oxidant, chloroprene rubber powder, alumina and reinforced fibers. The reinforced fibers can be a mixture of zylonite fiber, aramid fiber, cotton fiber and ramie fiber; the interface combination of fiber and particles in the materials is good, and the fiber and particles in the materials enable synergistic interaction with antimonony oxide and graphite, generation of thermal decomposition, heat attenuation and heat cracks phenomena can be effectively reduced, thermal conductivity of the materials is good, heat generated when brake friction is carried out can be timely radiated, brake disc surface temperature can be rapidly reduced, high temperature heat attenuation is reduced, hollow microspheres, the lubricant, the silane coupling agent and the enhance fiber are specific, friction coefficient of the wear resistant materials can be enhanced by intermolecular cooperation of the substances, and stability of the friction coefficient can be improved simultaneously.

The invention discloses a dynamic data compression and decompression method of a communication process of a wide-area measurement system. According to the method, by researching a real-time dynamic data transmission protocol, a phasor measurement unit end selects complete data format transmission at an integral-second time and selects compressed data format transmission at a non-integral-second time, the phasor measurement unit end voltage compression process comprises DC_IDCODE compression, century second SOC compression, phasor data compression, frequency offset compression, frequency changerate compression, analog compression and digital compression, the phasor measurement unit end transmits a data frame to a data concentrator end, the data concentrator end identifies the format of thedata frame by detecting the format of the data frame transmitted by the phasor measurement unit end, and a compressed data frame is decompressed by reading a configuration frame and the data frame ofa previous moment and thus is restored to a data frame conforming to the transmission protocol.

The invention discloses a wear-resistant material for a brake block of a heavy duty automobile. The wear-resistant material comprises raw materials as follows: bisphenol A novolac epoxy resin, diaminodiphenyl sulfone, mineral powder, a lubricant, a cross-linking agent, chloroprene rubber powder, aluminum oxide, cotton fiber, carbon fiber, aramid fiber, sisal fiber, antimonous oxide, graphite and calcium lignosulfonate. The components are compatible, so that the overall performance of the wear-resistant material is effectively guaranteed, the components can make up for defects in performance mutually and can have high performance due to mutual restriction functions, problems of existing brake blocks are solved, high-speed decline and high-temperature decline can be well prevented, and the wear-resistant material has advantages of better stability and long service life.

The invention discloses a copper-core armored power cable with a fire extinguishing function, the cable includes an armored cable body, the inside of the armored cable body is fixedly connected with afixing device, a cable core is fixedly connected to the inside of the fixing device, the outer side of the cable core is fixedly connected with an insulating layer, the outer side of the insulating layer is fixedly connected with a shielding layer, the outside of the fixing device is filled with a filling layer, and a first protective layer is fixedly connected to the outer side of the filling layer. The fixing device is arranged to fix the cable core and a fixing baffle plate is arranged as a member made of heat dissipating silicone rubber which has good elasticity and extensibility and playing a fixing role, so that the stability of the cable core is improved, and the cable core damage phenomenon is prevented;, at the same time, heat dissipation silicone rubber has good heat dissipationperformance, dissipates the heat generated by the cable core in time, avoids the high temperature of the armored cable body, and prolongs the service life of the armored cable body.

The invention relates to a manufacturing method of a seat cushion made of jute fiber. The method comprises the following steps: firstly, the soaking is performed to jute in compound enzyme water solution prepared by pectase and laccase, and the weight ratio of the compound enzyme water solution and the jute is 12 : 1 to 40 : 1; the pH value of the compound enzyme water solution is firstly adjusted into 4.0 to 6.5, and the compound enzyme water solution is warmed up to 35 to 65 DEG C, and the temperature is kept for 20 to 120 minutes; and then pH value of the compound enzyme water solution is adjusted to more than 8.0 and less than and equal to 9.5, and the compound enzyme water solution is kept for 20 to 120 minutes at 14 to 70 DEG C; then the enzyme inactivation process is performed to the jute processed through the compound enzyme; secondly, jute fiber after being degumed is mixed with chemical fiber, and carding, mesh placement and needling are performed to the chemical fiber; thirdly, the mixed fiber after being needled is thermally pressed and molded; fourthly, a sleeve body is coated. The seat cushion manufacuted by the invention is soft and comfortable, has no urtication feeling when being used by people, and has good antibiosis and anti-acarine performance.

The invention relates to a metal foam carrier CO2 adsorbent. The metal foam carrier CO2 adsorbent comprises a hollow continuous skeleton, wherein the hollow continuous skeleton is made of metal foam, and CO2 adsorbents with a heat conductivity coefficient of 0.06 to 0.12 W / m.K grow or fill in holes in the metal foam. According to the metal foam carrier CO2 adsorbent, the CO2 adsorbent with low heat conductivity coefficient fills in the metal foam, and because the metal foam is a heat transfer medium with good heat-conducting property, the CO2 adsorbent disclosed by the invention adsorbs heat generated by CO2, so that the heat can be dissipated in time, and the CO2 adsorption capacity is increased, thereby overcoming the defect of low adsorption capacity and even adsorbent failure caused by the low heat conductivity coefficient of the CO2 adsorbent. In addition, because the specific surface area of the metal foam is large, more CO2 adsorbents can grow or fill in the limited volume, and therefore, the metal foam carrier CO2 adsorbent can efficiently adsorb CO2.

The contactor unit includes two pair of stylus or more, pressure spring, and lugs setup symmetrically on outside the touch claws at two ends of each stylus. The pressure spring is linear spring. There are comby openings at two ends of linear spring. One pressure spring is setup at each outside end of the stylus. Two ends of each pressure spring are pressed against two lugs at same side of the stylus so as to constitute elastic component of the stylus unit. A spring bracket is socket jointed to middle part of the stylus unit. A plug socket for the stylus and pressure spring to be inserted is setup on the spring bracket along long direction. Position limited fit is formed between inner wall of the plug socket and the pressure spring. Being setup at the middle of the spring bracket, a bolt forms positioning fit together with the stylus. Features are: reasonable structure, compact, and stable working performance of the contactor unit.

The invention discloses a reinforced type aluminum-copper-based composite friction material which is prepared by carrying out procedures of raw material mixing, hot press molding and curing, wherein the raw materials comprise the following components in parts by weight: 15-20 parts of cast aluminum alloy ZAlSi8MgBe powder, 8-10 parts of copper alloy Cu30Ni15Mn powder, 8-10 parts of silicon carbide, 6-8 parts of potassium titanate fiber, 5-6 parts of aramid fiber, 5-6 parts of zirconia, 3-4 parts of tetrapod-like zinc oxide whisker, 1-2 parts of molybdenum disulfide, 1-2 parts of barium sulfate, 1-2 parts of tungsten carbide, 1.5-2 parts of nitrile rubber and 1-2 part of nano-titanium dioxide. According to the reinforced type aluminum-copper-based composite friction material, aluminum alloy and copper alloy are adopted to replace steel in a base material, as the heat radiation of the aluminum alloy and copper alloy is greatly higher than that of ordinary steel, the heat generated from brake friction can be radiated in time, the temperature of the surface of a brake pad is reduced, the high-temperature head fading property is alleviated, and the wear rate is small; and meanwhile the experiment shows that the noise frequency is less than 450Hz, so that people cannot hear conspicuous noise in an automobile.

The invention relates to the technical field of architectural decoration, in particular to a wave-shaped luminous pass sleeve comprising an upper pass and side passes. The lower part of the upper passhas a two-stage step structure. The upper pass is provided with shielding strips with different lengths. The lower ends of multiple shielding strips are arranged in a wave shape. First human body induction lamp strips are arranged at the bottom of fixing blocks. Each side pass is provided with an installation groove, an arc-shaped locating groove and a lamp shell, and the lamp shell is provided with an arc-shaped locating block. The lamp shell comprises a rectangular bottom shell, an arc-shaped installing part, a rectangular cavity, a heat dissipating member, a reflective cover and a lamp panel with an LED lamp strip. A light-emitting groove, a groove and a light guide post are arranged on that lamp panel. A lamp cover is arranged on that lamp shell. The lamp housing is provided with elastic reverse buckles. The lamp cover is provided with elastic buckles. The wave-shaped luminous pass sleeve has the characteristics of good lighting effect without dazzling, convenient installation anddisassembling, high heat conduction speed, good heat dissipation effect and long service life.

The invention discloses a photovoltaic junction box which has the advantages of wide applicability and convenient connection. The photovoltaic junction box comprises a box body and a box cover, wherein the box cover is arranged on the box body and cooperates with the box body; the bottom of the box body is provided with a mounting hole; six connecting pieces are orderly arranged in the box body; a diode is respectively arranged between every two connecting pieces; the box body, corresponding to one end of both the first connecting piece and the second connecting piece which are arranged on the left and right ends, is respectively provided with a first connecting jack and a second connecting jack; and the box body corresponding one end of both the third connecting piece and the fourth connecting piece is respectively provided with a third connecting jack and a fourth connecting jack. The photovoltaic junction box is connected with the positive and negative bus bars led out from the bottom of a solar battery pack in a clamping mode, thereby being more convenient as compared with the traditional welding technology. Four connecting jacks are arranged on the box body, and the left and right cables have multiple connection modes, so that the application range of the photovoltaic junction box is widened. Radiating fins are arranged on the diodes to emit heat generated by the diodes in time.

The invention relates to the technical field of building decoration and particularly discloses a lobby luminescent decorative door pocket sleeve with soft light, which comprises an upper decorative door pocket and a side decorative door pocket. The lower part of the upper decorative door pocket is a secondary ladder structure, occlusion strips with different lengths are arranged on the upper decorative door pocket, and the lower ends of a plurality of occlusion strips are arranged in wave; a first body induction light bar is arranged at the bottom part of fixed blocks. The side decorative doorpocket is provided with a mounting groove, an arc locating slot and a lamp shell, and arc locating blocks are arranged on the lamp shell; the lamp shell comprises a rectangular bottom case, an arc mounting portion, a rectangular cavity body, a heat dissipation part, a reflector, and a lamp plate with an LED light bar; a lampshade is arranged on the lamp shell, and includes a diffuser plate and ahemispherical lens, the other side of the main body of the lampshade is an inclined surface structure; an elastic reverse buckle is arranged on the lamp shell, and an elastic buckle is arranged on thelampshade. The lobby luminescent decorative door pocket sleeve with soft light has the advantages of sound lighting effect, no hurting for eyes, convenient installation and disassembly, fast heat conduction speed, good heat dissipation effect and long service life.

The invention discloses an air intake cooling structure of a new energy automobile charging pile, comprising four pillars. The top of four pillars is provided with a charging pile. The bottom plate ofthe charging pile is composed of a plurality of air guide plates, and rectangular ventilation holes are evenly arranged at an equal interval in the adjacent air guide plates. The charging pile comprises an inner layer body and an outer layer body. A hollow sandwich layer is arranged between the inner layer body and the outer layer body. The outer layer body is internally provided with a mountingrod, a cooling mechanism and a filter screen layer, the filter screen layer is arranged below the inner layer body, the cooling mechanism includes a wet curtain and two exhaust fans, the two exhaust fans are respectively arranged at the left and right ends of the lower surface of the top end of the inner cavity of the outer layer body, and the wet curtain is arranged above the filter screen layer.The air intake cooling structure can realize the function of air intake cooling for new energy car charging piles, the air circulation inside the charging pile and accelerate the spread of heat, thereby preventing the heat generated during the work process of a power module in the charging pile from damaging the charging pile.

The invention discloses a device for quickly preparing a stabilizer content analysis sample of small-grain-size gunpowder. A semi-circular material groove is formed at the bottom of a U-shaped feeder base of the device; the material groove passes through two sides and forms a discharge hole and a screw channel; a feeding screw bracket is in fastening connection with one side of the screw channel of the feeder base; an internal thread through hole which corresponds to the discharge hole is formed in the feeding screw bracket; a feeding screw is screwed in the internal thread through hole and corresponds to the discharge hole; a semi-circular upper material groove with corresponding hole diameter is formed on the lower part of a feeder upper cover and matched with the feeder base to form a hole channel in which powder grains are accommodated; and a cutter is arranged in the discharge hole of the feeder base. The invention has the advantages that: the small-grain-size gunpowder can be continuously cut in a continuous feeding and discontinuous cutting mode; by designing the discharge hole and the material groove with different hole diameters, gunpowder with different diameters can be processed; and the device is applicable to preparation of a plurality of kinds of gunpowder.

The invention discloses instant flavored chili peppers and a preparation method thereof. The instant flavored chili peppers comprise the following materials in parts by weight: 100-200 parts of fresh chili peppers, 3-10 parts of edible oil, 0.5-1.5 parts of table salt, 1-10 parts of rosemary leaves, 1-10 parts of lemon grass and 1-10 parts of seasonings. The preparation method of the instant flavored chili peppers disclosed by the invention comprises the following steps: (1), washing the fresh chili peppers and removing pedicles; (2), carrying out surface treatment on the pedicle-removed chili peppers; (3), stir-frying the surface-treated chili peppers; (4), carrying out vacuum treatment; (5), carrying out washing and peeling; (6), carrying out flavoring; and (7), carrying out packaging and sterilizing. The instant flavored chili peppers have the beneficial effects of perfectly retained nutrition, soft and tender tastes, refreshing and natural flavors as well as complete and beautiful structures and so on. Products of the invention fill the vacancy of instant chili-pepper foods and provide preparation methods of the instant chili-pepper foods with multiple flavors; thus, new schemes for developing new chili-pepper varieties are provided.

The invention discloses a traditional Chinese medicine decoction piece crushing device for the pharmacy department. The traditional Chinese medicine decoction piece crushing device comprises a shell, an external thread, a feeding port, connecting plates, a supporting frame, a lifting mechanism, a cutting assembly, a grinding plate, a crushing mechanism and a screening and collecting mechanism; the feeding port is formed in one side of the shell; the external thread is arranged on the outer wall of the shell and located above the feeding port; the lifting mechanism is arranged on one side of the shell; the cutting assembly is arranged on one side of the lifting mechanism; the grinding plate is arranged on one side of the cutting assembly; the crushing mechanism is arranged on one side of the grinding plate; the screening and collecting mechanism is arranged on one side of the crushing mechanism; the three sets of connecting plates are arranged on the other side of the shell; and the supporting frame is arranged on one sides of the connecting plates. According to the traditional Chinese medicine decoction piece crushing device, traditional Chinese medicine decoction piece crushed particles can be more uniform through multi-layer cutting and crushing, and traditional Chinese medicine decoction piece powder is rapidly discharged through the screening and collecting mechanism.

The invention discloses an elevator special flat cable with flame retardant function, include a flat cable body, a cable core is arranged inside the flat cable body, A woven layer is fixedly installedon the outer side of the cable core, A protective sleeve is fixedly mounted on the outer side of the braiding layer, a first insulating layer is arranged on the outer side of the protective sleeve, aflame retardant layer is fixedly mounted on the outer side of the first insulating layer, a heat dissipation layer is fixedly installed on the outside of the fire retardant layer, so that that flameretardant lay is arranged, the flame retardant function is acehived, and a flame retardant fiber is arranged to stop the fire from spreading, fire-retardant adhesive is arranged, so as to avoid largearea burn-out of flat cable body, and reduce the loss, facilitates the maintenance and replacement of the damaged flat cable body, recovers the normal use of the elevator as soon as possible, simultaneously avoids causing serious fire, guarantees the life safety of the user, improves the safety performance of the flat cable body, the fire-retardant glue simultaneously plays the role of bonding, and the heat generated by the cable core is accumulated by setting a cavity.

The invention relates to a cooling integral roof panel and a cooling integral roof comprising the same. The integral roof panel comprises an upper panel, a waterproof layer and an air circulating layer connected as a whole from top to bottom; the air circulating layer comprises a phase change layer, a ventilation layer and a base layer connected in sequence; and the base layer comprises a wallboard, a dampproof vapor separation layer and a bottom layer panel connected in sequence. The cooling integral roof panel uses the phase change layer of 40-48 DEG C for absorbing roof sunlight heat to reduce and delay the roof temperature in summer, and the temperature can be reduced by 10-15 DEG C to the greatest extent, so that the roof and indoor temperature difference is reduced, the indoor heat transfer is reduced, and the purposes of reduction of the air conditioner load, energy conservation and consumption reduction are achieved; and the cooling integral roof panel can be used as a roof insuch buildings as a framework concrete structure, a timber structure and a steel structure, and can be used as an additional cooling integral roof panel for a traditional building roof.

The invention discloses an archive management informatization system based on college graduate employment and entrepreneurship demands. The system includes a web server, a file query platform, a campus management system and a human and social bureau management system. Graduates can find where their archives are mailed at any time; At the same time, the graduate's paper archives are lost due to unexpected situations. paper files of graduates can be conveniently found; the student archive database in the campus management system of the university graduates after two years of graduation is deleted by adopting data of the student archive database; data cannot be found due to student archive loss caused by accidents in the period; university graduates can pass names; the student number and themobile phone number are bound with the student archive mailing module. The student archive mailing module sends mailing information every day, university graduates can be bound with the social bureauarchive publishing module through names, student numbers and mobile phone numbers, and the social bureau archive publishing module sends the university graduates information to the mobile phone numbers bound with the university graduates through short messages after the social bureau archive publishing module publishes the university graduates information.

The invention relates to the technical field of an auxiliary device for the production of a flexible circuit board, in particular to a surface treatment device used for the production of the flexiblecircuit board, which can improve the tightness of a stopper door, can press the stopper door and a take-off and release port tightly, improves the treatment effect and improves the use reliability; Atthe same time, the position of the plasma cleaner can be adjusted to adapt to the surface treatment of flexible circuit boards with different sizes and thicknesses, so as to improve the adaptabilityand reduce the use limitation; And in the working process, the heat generated by the line controller can be dissipated in time, thus prolonging its service life and improving its practicability. Comprises a processing tank, a mounting plate, a support table and a line controller; Comprises an upper connecting rod, a lower connecting rod, an upper pressing plate, a lower pressing plate, an upper locking screw, a lower locking screw, an upper arm and a lower arm; The utility model also comprises a support rod, a sliding block, an upper connecting plate, a lower connecting plate, an adjusting plate, a gear rail, a gear motor and a double-control switch. It also includes four sets of cooling fans and four sets of metal protective nets.

The invention provides a liquid-cooled wind generating set and a temperature control system thereof. The temperature control system comprises a plurality of temperature detection parts, a plurality offirst heat exchangers, ground source heat exchange equipment, a circulating pipeline, supercharging equipment and control equipment, wherein the multiple temperature detection parts are used for monitoring the actual measurement temperature values of N heat source parts; the multiple first heat exchangers exchange heat with a plurality of corresponding second heat exchangers arranged on the multiple heat source parts; the circulating pipeline is arranged in the wind generating set and communicates with the multiple first heat exchangers and a third heat exchanger of the ground source heat exchange equipment; and the control equipment is used for controlling the working states of the multiple first heat exchangers, the ground source heat exchange equipment and the supercharging equipment according to the N actual measurement temperature values corresponding to the N heat source parts and the N preset target control temperature values corresponding to the N heat source parts. Accordingto the scheme, a unit area temperature control device of natural resources can be fully utilized, so that systematic temperature control and lower energy consumption of the unit are achieved.

The invention proposes a self-radiating distribution box for power engineering substations, which includes a box body, the box body includes an inner box body and an outer box body arranged outside the inner box body, a temperature sensor is arranged in the inner box body, and the inner box body A first air duct is formed between the bottom end of the body and the bottom end of the outer box, multiple second air ducts are formed between the side wall of the inner box and the side wall of the outer box, and a plurality of second air ducts are formed between the top of the inner box and the top of the outer box. The third ventilation channel, a fan is arranged in the third ventilation channel; the bottom of the outer box body is provided with an air inlet connected with the first ventilation channel and its top is provided with an air outlet connected with the second ventilation channel, and the bottom of the inner box body There is a first vent communicating with the air inlet passage, and a plurality of second vents communicating with the second vent are provided on the side wall of the inner box, and a self-regulating vent is provided at the second vent. The invention can dissipate the heat in the distribution box to the air in time, thereby reducing the temperature in the distribution box and achieving a good heat dissipation effect.

The invention relates to an automatic airflow control system of an FDM printer. The automatic airflow control system of the FDM printer comprises an air inlet pipe, an automatic control system and universal air outlet pipes. It can be guaranteed that in the process that the FDM printer prints a mold, manual adjustment of a compressed air control valve is not needed, automatic control and adjustment of the air flow are achieved through the automatic airflow control system, the material heat brought by printing is effectively lowered through the compressed air, heat on the mold can be dissipated in time in the printing process, and it is ensured that the form and the size of the printed mold are qualified. The automatic airflow control system of the FDM printer is simple in overall structure, convenient to control, easy to operate and use, capable of being applied to multiple occasions and high in applicability.

The invention relates to the technical field of building decoration, and particularly discloses a light-emitting door-free passage with a good heat dissipation effect. The light-emitting door-free passage comprises an upper door-free passage body (1) and side door-free passage bodies (2); mounting grooves (3) are formed in the side door-free passage bodies, arc-shaped positioning grooves (301) areformed in the mounting grooves, and the side door-free passage bodies are provided with transverse sliding grooves (302); lamp shells (4) and arc-shaped positioning blocks (303) are arranged in the mounting grooves; the lamp shells (4) comprise rectangular bottom shells (401) and arc-shaped mounting parts (402); the rectangular bottom shells are provided with rectangular cavities (403); the rectangular cavities are internally provided with heat dissipation fans (404), and heat dissipation pieces (5) are arranged on the sides of the rectangular cavities; and reflective hoods (6) are arranged on the surfaces of the arc-shaped mounting parts, the reflective hoods are provided with lamp discs (7) with LED lamp belts (709), and the lamp shells are provided with lampshades (8). The light-emitting door-free passage has the characteristics of convenient mounting and dismounting, high heat conduction speed, good heat dissipation effect and long service life.

The invention discloses a separated independent sealing fuel cell, including a gas guide plate and a membrane electrode assembly; part of a sealing area of the membrane electrode assembly is composed of a proton exchange membrane by extending to the periphery; a first sealing ring is arranged on the gas guide plate around the active area, a second sealing ring is arranged around the non-active area, a buffer area is arranged between the first sealing ring and the second sealing ring on the gas guide plate for isolating the first sealing ring and the second sealing ring, and the sealing area of the membrane electrode assembly is corresponding to the sealing area of the first sealing ring and is extruded by the first sealing ring. The fuel cell has superior sealing performance.

The invention relates to the technical field of mobile phone accessories, In particular, the invention relates to a protection device for charging the smart phone, which can well place and clamp the mobile phone, prevent the mobile phone from falling and injuring, improve the practicability, dissipate the heat generated in the charging process of the mobile phone in time, prevent the hazards suchas fire and even explosion, and improve the use reliability. And the cable of the mobile phone charger can be sorted to reduce the space occupation, improve the tidiness of the space and improve the adaptability; The protection device includes a charger; a protection box, an upper slide bar, a lower slide bar, a left adjusting plate, two sets of left clamping mechanisms, two sets of right clampingmechanisms, a right adjusting plate, an upper gear track, a lower gear track, a first driving gear and an adjusting shaft; and also includes four sets of cooling fans; a collection tank, a left placement plate, a right placement plate, a winding shaft, a rotary shaft, and a rotary knob. The top end of the collection tank is connected to the bottom end of the protection tank, and a collection chamber is provided inside the collection tank.