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40results about How to "Improve waterproof level" patented technology

Self-power-generation digital pressure reducing valve and pressure regulating method

The self-power-generation digital pressure reducing valve comprises a main valve and further comprises an electric pressure reducing guide valve, a water inlet of the electric pressure reducing guide valve is connected with a water inlet end of the main valve through a first pipeline, and a water outlet end of the main valve is connected with a water outlet of the electric pressure reducing guide valve through a second pipeline. A water outlet of the electric pressure reduction pilot valve is connected with a diaphragm upper cavity of the main valve control chamber through a third pipeline; the diaphragm lower cavity is connected with the outside through a fourth pipeline, a fifth pipeline is further connected between the water inlet end and the water outlet end of the main valve, and a hydroelectric generator is arranged on the fifth pipeline; the pressure detection devices are arranged in front of and behind the main valve; the controller is used for receiving detection signals of the pressure detection devices so as to control opening and closing of the electric pressure reduction pilot valve; and the hydroelectric generator is connected with the pressure detection device and the electric pressure reduction pilot valve. According to the digital pressure reducing valve, self power generation can be achieved, the power utilization requirement of electric equipment is met, and remote regulation and control can be achieved.
Owner:ZHUZHOU SOUTHERN VALVE +1

Steering intermediate shaft sheath capable of meeting vehicle floating function

The utility model discloses a steering intermediate shaft sheath capable of meeting a vehicle floating function, which comprises a metal plate, an upper dust cover, a lower dust cover, a shaft seal component A and a shaft seal component B are arranged on the metal plate, the lower dust cover penetrates through the upper dust cover through three rubber staple bolt structures to be clamped on the metal plate, and the shaft seal component A is arranged on the metal plate. The shaft seal assembly A is assembled in the upper dust cover in an interference mode, the shaft seal assembly B is assembled in the lower dust cover in an interference mode, the shaft seal assembly A and the shaft seal assembly B are coaxial, and each of the shaft seal assembly A and the shaft seal assembly B comprises a shaft seal fixing sleeve, a supporting ring, a rubber lip, a framework, a spring and lubricating grease. The utility model relates to the technical field of automobile accessories. The steering intermediate shaft sheath capable of meeting the vehicle floating function has the advantages of being easy to assemble, economical, practical, good in dustproof and noise reduction effect, high in waterproof grade and capable of meeting the vehicle floating function.
Owner:ANHUI ZHONGDING RUBBER PLASTIC PROD CO LTD

Waterproof, heating-proof, electric shock-proof and arc-proof structure of adapter

The utility model relates to the technical field of charging guns, and particularly discloses a waterproof, anti-heating, anti-electric shock and anti-arc structure of a conversion head, which comprises a CCS1 gun head and an NACS interface connected with the CCS1 gun head, a first copper contact pin, a first signal pin and a PCBA circuit board are arranged in the CCS1 gun head, a first button and a second button are arranged on the NACS interface, and a second copper contact pin is arranged on the first button. The inner side of the first button and the inner side of the second button are each provided with a microswitch electrically connected with the PCBA circuit board, a copper bar, a second copper pin and a second signal pin are arranged in the NACS interface, and a waterproof sealing strip is arranged between the CCS1 gun head and the NACS interface. According to the utility model, the first copper pin and the second copper pin are both connected with the copper bar in a pressure riveting manner, the first button and the second button are internally provided with the microswitches, power is cut off before the gun is pulled out, electric arc generation is avoided, the electric arc prevention function is realized, and the electric shock prevention function is realized by arranging the safety door structure at the output end of the CCS1 gun head. The waterproof sealing performance is improved by arranging the waterproof sealing strip, and the waterproof grade is improved.
Owner:罗美连

A quick-connect fuel cell power distribution box

This utility model belongs to the field of fuel cell accessories and discloses a quick-connect fuel cell power distribution box. The power distribution box consists of a top cover and a base; the base has a support surface for placing power distribution and control components, and a fixing pad is connected to the bottom of the base; a sealing ring is provided at the top edge of the base; the top cover is placed on the base. This utility model fuel cell power distribution box has low cost, small size, low failure rate, and high waterproof rating. The internal structure of this power distribution box fixes relays, fuses, and wiring harness terminals without the need for connectors, which effectively saves costs. Since there are no control chips and circuit boards inside, internal space is saved and the failure rate is reduced. This power distribution box has added waterproof plugs and sealing plugs, and the waterproof rating reaches IP67.
Owner:GUANGDONG YUNTAO HYDROGEN ENERGY TECH CO LTD

Waterproof light guide key structure of electronic product

The utility model discloses a waterproof light guide key structure of an electronic product, which comprises a shell, a PCB (printed circuit board) is arranged in the shell, a key switch and an LED (light-emitting diode) lamp are arranged on the PCB, a key hole corresponding to the position of the key switch is arranged on the side surface of the shell, and the LED lamp is arranged in the key hole. And light guide keys which are clamped and fixed with the inner side of the shell, correspond to the key switches and the LED lamps and are made of silica gel materials are arranged in the key holes in an interference fit manner. According to the utility model, only one key hole is arranged, the good astigmatism of the silica gel material is matched with the structural modeling of the light guide key, the light guide effect of the function indicating lamp with a sense of science and technology is obtained, and the good ductility of the silica gel material is matched with the related structure of the shell, so that the key part is easily assembled, and the waterproof grade of the product can be improved; and in combination with the good buffering performance of the silica gel material, components such as the touch switch cannot be damaged in the falling or transportation vibration process of the product, and the product quality is improved.
Owner:SHENZHEN NETIS TECH CO LTD

Injection molding type uniform light guide handle assembly and electric toothbrush

ActiveCN224220274UImprove visual effectsImprove waterproof levelTooth cleaningMedicineLight guide
The utility model relates to the technical field of electric toothbrushes, and particularly discloses an injection molding type uniform light guide handle assembly and an electric toothbrush. The handle assembly comprises a handle shell, a panel assembly and a state light guide assembly, and the panel assembly and the state light guide assembly are arranged on the handle shell in a sleeved mode through the multi-layer injection molding technology. The bar-shaped lamp set is arranged on the handle assembly, processes in all working modes are provided, and richer information is provided for a user; through the arrangement of the black silica gel light insulation piece and the groove of the decoration panel, light of the light emitting piece is effectively gathered, and information transmission is more accurate. The utility model further provides the electric toothbrush comprising the handle assembly, the design of a multi-layer injection molding process is adopted, the light guide part and the fixing part are combined through a die sleeving process, the waterproof grade of the electric toothbrush is improved to IPX8, meanwhile, the information interaction content of the handle is enriched, and the uniform light emitting effect is achieved.
Owner:SHENZHEN MAIJI FUTURE TECHNOLOGY CO LTD

TYPE-C-6P clamping plate waterproof connector

The TYPE-C-6P clamping plate waterproof connector comprises an insulation body, a plurality of metal terminals and a shell wrapping the insulation body, the insulation body comprises a main body portion fixed in the shell, the front end face of the main body portion extends forwards to form a tongue portion which is not in contact with the inner wall of the front portion of the shell, and the tongue portion is in contact with the inner wall of the front portion of the shell. Contact portions of the metal terminals are distributed on the upper surface and the lower surface of the tongue portion, the rear end face of the body portion is combined with the inner wall of the rear portion of the shell in a sealed mode through a glue layer, and terminal pins of the metal terminals penetrate through the glue layer to be combined with the glue layer in a sealed mode. The rear end face of the main body part and the inner wall of the rear part of the shell protrude to form combination parts which are combined with the glue layer into a whole. The TYPE-C-6P clamping plate waterproof connector provided by the utility model has a waterproof function.
Owner:DONGGUAN YOULIAN ELECTRONIC CO LTD

Waterproof ceiling down lamp

ActiveCN224415107Uprevent intrusionImprove waterproof levelWater leakageWasher
The utility model discloses a waterproof type ceiling down lamp, including integrated shell and installation clamp, the outside of integrated shell evenly is provided with the fin of heat dissipation, and the opening of integrated shell is provided with the support ring, and the outer wall of support ring is provided with two water baffle rings from inside to outside, the outside of support ring is provided with the protective cover, and the center of protective cover is provided with the light -transmitting lens piece, the utility model discloses integrated shell design, compact structure has reduced the water leakage risk of joint place. The opening of integrated shell is provided with the support ring, and the outer wall of support ring is provided with two water baffle rings from inside to outside. The design of double water baffle rings can effectively block the invasion of external moisture, improve the waterproof level of the lamp. The inner wall of protective cover is provided with the encapsulation outer groove and encapsulation inner groove respectively at the position corresponding to two water baffle rings, and the groove all is provided with the sealing washer. This multiple sealing structure further enhances the waterproof effect.
Owner:FOSHAN FLC LIGHTING CO LTD

A high voltage connector for ease of installation

The utility model discloses a high -voltage connector convenient to installation, including socket assembly and plug assembly, socket assembly is connected with plug assembly. The utility model has the beneficial effects: the utility model can realize multi -angle installation through rotating plug assembly, breaks through the restriction of traditional connector only 90 or 180 cooperation mode, and the selection range of installation position is greatly expanded, and whole car wiring becomes more convenient, the utility model adopts 360 shielding structure of shielding spring, shielding outer ring and shielding inner ring, effectively avoids the problem of shielding layer loosening, fracture, and electromagnetic interference is effectively inhibited, and the stability of system signal transmission is improved, the utility model discloses through interlocking sealing washer, socket sealing pad, plug sealing washer, small O -ring, sleeve and big O -ring etc.
Owner:WENYI PRECISION TECH (SHANGHAI) CO LTD

A colorful laser light

The present invention discloses a colorful laser lamp, comprising: a housing; a laser lamp module, the laser lamp module comprising a laser lamp, a gear transmission assembly and a first grating sheet, the first grating sheet being arranged on the gear transmission assembly and being located in front of the irradiation of the laser lamp; an LED lamp module, the LED lamp module comprising a multi-color LED lamp, a rotating member and a corrugated sheet, the rotating member being meshedly connected with the gear transmission assembly, the corrugated sheet being arranged on the rotating member and being located in front of the irradiation of the multi-color LED lamp. The present invention realizes a combination of two forms of light by arranging a multi-color LED lamp in the laser lamp, the corrugated sheet enables the light of the multi-color LED lamp to produce a halo effect, and enhances the visual experience together with the laser light, and the rotating member is meshedly connected with the gear transmission assembly, on the one hand, the first grating sheet and the corrugated sheet can be rotated simultaneously, the dynamic change of the light can be increased, and the artistic expression effect of the light can be improved; on the other hand, the laser lamp module and the LED lamp module can be combined more compactly, which can achieve miniaturization.
Owner:CHANGXING POTEK ELECTRONICS & TECH CO LTD

Fuel cell systems and vehicles

This invention provides a fuel cell system, comprising: an air compressor, a heat exchanger, a fuel cell stack, and an intercooler; the air outlet of the air compressor is connected to the inlet of the intercooler, the outlet of the intercooler is connected to the air inlet of the fuel cell stack, the outlet of the intercooler is also connected to the cooling inlet of the air compressor, the high-temperature air outlet of the air compressor is connected to the air inlet of the heat exchanger, the coolant inlet of the heat exchanger is connected to the coolant outlet of the fuel cell stack, the coolant outlet of the heat exchanger is connected to the coolant inlet of the fuel cell stack, and the air outlet of the heat exchanger is connected to an exhaust pipe. The high-temperature air output from the air compressor heats the coolant in the fuel cell stack through the heat exchanger, fully utilizing the heat from the air compressor. This achieves waste heat utilization from the air compressor.
Owner:TOYOTA SINOHYTEC FUEL CELL CO LTD

Searchlight

The utility model discloses a searchlight which comprises a light tube component, the light tube component is installed on a holder component through a support component, and the holder component is used for carrying out horizontal rotation adjustment and pitching angle adjustment on the light tube component. A radiator and a high-power light-emitting lamp are arranged in the lamp tube component, the front end of the lamp tube component is connected with the pressing ring component in a sealed mode, the radiator is connected with the lamp tube in a sealed mode, so that a closed light source cavity is formed between the radiator and the pressing ring component, and the high-power light-emitting lamp is located in the light source cavity. The rear portion of the lamp tube component is hollowed out to form a heat dissipation cavity, and the waterproof grade of the light source cavity is higher than that of the heat dissipation cavity. According to the searchlight provided by the utility model, the heat dissipation function and the waterproof function can be well considered, the high waterproof grade can be realized, and the heat dissipation performance cannot be influenced.
Owner:HAIXING MARITIME ELECTRIC GROUP

Outdoor intelligent cabinet

ActiveCN224734937Uavoid enteringImprove waterproof level
This utility model relates to the field of smart cabinet technology, and more particularly to an outdoor smart cabinet. The outdoor smart cabinet includes a cabinet body, multiple cabinet doors, and multiple door connectors. The cabinet body has multiple storage compartments. The cabinet doors are rotatably mounted on the cabinet body via the door connectors, and are used to open or close the storage compartments. The cabinet body also has a water-guiding channel assembly surrounding the storage compartments. A drain outlet assembly is located on the side of the cabinet door near the door connector, including a first drain outlet and a second drain outlet. When the cabinet door is closed, both the first and second drain outlets are connected to the water-guiding channel assembly. In this utility model, the water-guiding channel assembly and the drain outlet assembly prevent rainwater from entering the storage compartments, improving the waterproof rating of the outdoor smart cabinet. The drain outlet assembly is located on the side of the cabinet door facing the door connector, further preventing the end of the cabinet door away from the door connector from accumulating excessive moisture, thus minimizing the amount of water splashed into the storage compartments during the opening and closing of the cabinet door.
Owner:SHENZHEN HIVE BOX NETWORK TECH LTD

Module box structure of ultrasonic water meter

The module box structure comprises an upper shell and a lower shell which are connected, a mounting cavity is formed between the upper shell and the lower shell, the edge of the upper shell is provided with a first inner blocking part and a first outer blocking part, and the first outer blocking part is located on the outer side of the first inner blocking part; a second inner blocking part and a second outer blocking part are arranged on the edge of the lower shell, and the second outer blocking part is located on the outer side of the second inner blocking part; the inner side wall of the first inner blocking part abuts against the outer side wall of the second inner blocking part, the outer side wall of the first inner blocking part abuts against the inner side wall of the second outer blocking part, and the inner side wall of the second outer blocking part abuts against the outer side wall of the second outer blocking part. The first inner blocking part and the first outer blocking part are arranged at the edge of the upper shell, and the second inner blocking part and the second outer blocking part are arranged at the edge of the lower shell, so that a multi-layer and three-dimensional waterproof structure is realized. And the sealing performance of the module box is obviously improved.
Owner:WATER METER DUYUN CITY

Automobile electromagnetic valve coil, electromagnetic valve and electromagnetic valve mounting structure

The invention belongs to the technical field of automobile electromagnetic valves, and particularly relates to an automobile electromagnetic valve coil, an electromagnetic valve and an electromagnetic valve mounting structure. The automobile electromagnetic valve coil comprises a framework, a coil and a shell, the coil is wound on the framework, and the shell wraps the framework and the coil. A dragging wire is arranged on the shell, the fixed end of the dragging wire is connected to the shell, an electric connector is arranged at the free end of the dragging wire, and the electric connector is electrically connected with the coil through the dragging wire. The electric connector is indirectly connected to the shell through the dragging line, the installation position of the electric connector relative to the electromagnetic valve is adjustable by pulling the free end of the dragging line, then the electric connector is pulled to the position with enough installation space to be connected with a vehicle power line, the installation space of the electromagnetic valve body is saved, the design and installation efficiency is improved, and cost is saved. The sealing gasket is arranged, the sealing ring is additionally arranged between the electromagnetic valve installation base and the electromagnetic valve shell, the waterproof grade of the electromagnetic valve installation structure is improved, the electromagnetic valve, the dragging line and the electric connector are circumferentially positioned, and the service life of the electromagnetic valve is prolonged.
Owner:SICHUAN NINGJIANG SHANCHUAN MACHINERY

Electric mower and electric wheel type equipment

PendingCN119422607ASimple sealing structureImprove waterproof levelMowersVehicle frameDrive shaft
The invention discloses an electric lawn mower which comprises a walking wheel set, a driving device, a driving device, a driving device and a driving device. The walking wheel set comprises a first walking wheel and a second walking wheel; the frame is connected with the first walking wheel and the second walking wheel; the walking motor is provided with a driving shaft and is used for driving the walking wheel set; the mowing motor is used for driving an element to execute a mowing function; the power supply assembly is at least used for supplying power to the walking motor and the mowing motor; the central control assembly comprises a first shell, a second shell and a circuit board assembly arranged in an accommodating space formed by the first shell and the second shell; the circuit board assembly is at least used for controlling running of the walking motor. The central control assembly further comprises a sealing assembly and a cable extending out of the containing space. The sealing assembly is used for achieving sealing between the cable and the first shell or the second shell. By the adoption of the technical scheme, the center control assembly is simple in sealing structure, high in waterproof grade and low in maintenance cost, and the center control assembly is suitable for the electric mower.
Owner:NANJING CHERVON IND

Sealing and waterproof device and monitoring equipment

ActiveCN111668651BImprove waterproof levelavoid damageMonitor equipmentEquipment use
The present invention relates to the technical field of sealing of monitoring equipment, and discloses a sealing and waterproof device and monitoring equipment. The sealing and waterproof device includes a shell, a first sealing component and a second sealing component, a threading part is provided on the side wall of the shell, a first mounting hole is provided at one end of the threading part away from the chamber of the shell, a second mounting hole is provided at the other end, and a first threading hole is provided between the first mounting hole and the second mounting hole; the first sealing component is installed in the first mounting hole, and is used to seal the first threading hole away from the end of the chamber; the second sealing component is installed in the second mounting hole, and is used to seal the first threading hole close to the end of the chamber; the tail wire is sequentially passed through the first sealing component, the first threading hole and the second sealing component. The present invention realizes that the waterproof level of the tail wire of the monitoring equipment is increased from IP66 to IP67; the safety of the equipment is increased, the service life of the equipment is increased, the glue dispensing sealing method is not adopted, the production cost is saved, and the production time is reduced.
Owner:RUANZHI ELECTRONICS CO LTD

Control device and electronic equipment

The embodiment of the invention discloses a control device and electronic equipment, and a functional part is arranged in an isolation cavity of a central assembly so as to protect the functional part. The first movement gap formed between the center assembly and the knob part can effectively reduce abrasion between the center assembly and the knob part during rotation of the knob part. Therefore, the isolation cavity and the first movement gap are arranged in a separated mode, when water or dust or other invading objects enter the first movement gap, the invading objects can be effectively prevented from making contact with the functional component, and then the electrical performance of the functional component is guaranteed. And meanwhile, the control device has a relatively high waterproof grade.
Owner:LUXSHARE PRECISION IND SHENZHEN

Electronic brake signal extension cord

The utility model relates to the technical field of signal extension lines, in particular to an electronic brake signal extension line, which comprises a shell and a branching line card arranged in the shell, the shell is hollow, a slot is arranged on the shell, the branching line card is matched with the slot in an inserting way, an electric wire is arranged on the branching line card, and the branching line card is connected with the electric wire in an inserting way. The two ends of the electric wire extend out of the shell, a sealing glue layer is arranged in the shell, and the sealing glue layer wraps the electric wire and the branching wire clamp. The utility model has the effect of high waterproof grade.
Owner:EDGAR AUTO HARNESSES LTD

Waterproof USB connector

ActiveCN224204460UImprove waterproof levelprevent intrusionCouplings bases/casesUSBMechanical engineering
The utility model relates to the technical field of USB (universal serial bus) connectors, in particular to a waterproof USB connector, which comprises a connector body and further comprises an outer casing and a movable sleeve, the outer casing is sleeved outside an outer casing of the connector body, a sliding slot is arranged at the top end of the outer casing, the movable sleeve is covered on the periphery of a connector body joint, and the bottom of the movable sleeve is in sliding plug-in connection with the sliding slot. According to the utility model, the outer housing is sleeved outside the connector body, the top surface of the outer housing is provided with the sliding slot, the interior of the sliding slot is connected with the moving sleeve through the compression spring, and the top surface of the moving sleeve is fixedly connected with the sealing ring, so that the moving sleeve is not prone to falling off when the connector body is plugged and used; the sealing ring enables the outer housing and the surface of the socket to form a tight sealing structure, thereby effectively preventing water from invading from the connection part of the USB connector and the socket. The protective cover is rotatably arranged on the outer wall of the outer housing, so that the protective cover provides additional physical protection for the connector body, and the damage risk caused by external factors is reduced.
Owner:SHENZHEN YINLIDA TECH CO LTD

Waterproof optical lens with high luminous efficiency

The utility model discloses a waterproof optical lens with high luminous efficiency, which relates to the technical field of optical lenses, and comprises a lens main body, a channel is arranged on the inner side of the lens main body, and a lens assembly is arranged in the channel; the lens assembly comprises an installation frame, a multi-layer coated lens, protruding protection rings, a sealing ring and a waterproof ring, the multi-layer coated lens is located on the inner side of the installation frame, the protruding protection rings are fixedly connected to the two sides of the installation frame and supported on the edges of the two ends of the multi-layer coated lens, and the sealing ring is arranged between the protruding protection rings and the multi-layer coated lens; according to the technical scheme provided by the utility model, through the design of the multilayer coated lens, the overall lighting effect is improved. In addition, the hydrophobic nano coating on the surface reduces water drop attachment, the light propagation path is further optimized, and the high luminous efficiency performance of the lens is ensured. And by utilizing a dual protection mechanism of the sealing ring and the waterproof ring, external moisture is effectively isolated, and the waterproof grade of the lens is greatly improved.
Owner:ZHONGSHAN ADVENTURE LIGHTING ACCESSORIES CO LTD

Heating device of energy storage liquid cooling system

The utility model provides a heating device of an energy storage liquid cooling system, which comprises a plastic shell and a spiral aluminum pipe heating assembly arranged in the plastic shell, the spiral aluminum pipe heating assembly comprises a stainless steel pipe and a spiral aluminum pipe attached to the outer wall of the stainless steel pipe, and the stainless steel pipe and the spiral aluminum pipe are welded and fixed together through aluminum solder. A heating wire is arranged in the spiral aluminum pipe, a temperature control module is arranged in the plastic shell, the temperature control module collects the heating temperature of the spiral aluminum pipe heating assembly and is electrically connected with the heating wire, the advantage that aluminum is high in heat transfer speed is utilized, the aluminum pipe and the stainless steel pipe are welded through aluminum solder, and the heat conversion efficiency is high; the water resistance can be effectively reduced by adopting the straight-through structure, and the problem that the water resistance of the energy storage liquid cooling heater is large is solved.
Owner:HANGZHOU REWEI IND TECH CO LTD

A waterproof vehicle-mounted sensor shell

The utility model discloses a waterproof type vehicle -mounted sensor shell, and the device includes: sensor shell main part, one end of sensor shell main part is equipped with sealed end, one end of sealed end is equipped with cable waterproof cover, the surface of sensor shell main part is equipped with a plurality of first inclined groove and second inclined groove, first inclined groove and second inclined groove are symmetrical and even winding on the surface of sensor shell main part, and sensor shell main part includes base layer and anti -permeation layer. The utility model has the advantages of: the first inclined groove and second inclined groove of symmetrical winding of sensor shell main part surface, cooperate 55 and 125's angle of inclination, can change the water flow direction fast, make rainwater, mud water and so on liquid follow the inclined groove and slide down rapidly, compared with traditional smooth plane shell, and the retention time of moisture on the surface is shortened by more than 80%, effectively reduces the probability that liquid infiltrates the seam and cable interface, reduces the risk that sensor loses the effect because of water.
Owner:CHANGZHOU AIMEI OUTDOOR LEISURE PROD CO LTD

An internal LED light source for an LED display screen

ActiveCN118538125Bfirmly connectedImprove waterproof levelElectrical componentsIdentification means
The present invention relates to an internal plug-in LED light source for an LED display screen, wherein several of the internal plug-in LED light sources are simultaneously inserted into an LED light board, wherein the LED light board comprises a light board surface, a device connection surface and several plug holes, wherein the internal plug-in LED light sources are correspondingly inserted into the plug holes, wherein the internal plug-in LED light sources comprise an insertion portion, a light source portion and several power connection pins, wherein the light source portion is connected to the top of the insertion portion, several of the power connection pins are connected to the bottom of the insertion portion, the insertion portion is inserted into the plug hole, the outer side surface of the insertion portion contacts the inner hole wall of the plug hole, a fastening structure is formed by means of the outer side surface and the inner hole wall, several of the power connection pins are connected to the device connection surface of the LED light board, and the light source portion is convexly arranged outside the light board surface of the LED light board.
Owner:SHENZHEN YUANHENG RUISHI TECH CO LTD

Traction machine capable of dissipating heat through traction wheel

A traction machine utilizing a traction wheel to dissipate heat relates to the traction machine technology and comprises a permanent magnet synchronous traction machine shell, a stator, a rotor, a rotating shaft and the traction wheel, the traction wheel is fixed on the rotating shaft penetrating out of the permanent magnet synchronous traction machine shell and comprises a supporting sleeve, an outer ring and a plurality of fan blades, and a rope groove is formed in the outer circle surface of the outer ring. The fan blades are evenly distributed around the axis of the rotating shaft and connected between the supporting sleeve and the outer ring, the included angle between the fanning face of each fan blade and the axis of the rotating shaft is an acute angle, wide gaps are formed between the traction wheel and the end face, facing the traction wheel, of the permanent magnet synchronous traction machine shell, and ventilation channels are formed between the fan blades and the wide gaps. Compared with the prior art, the permanent magnet synchronous traction machine has the advantages that the heat dissipation performance is good, the traction wheel is convenient to replace, and the permanent magnet synchronous traction machine can be efficiently cooled without dust entering the traction machine.
Owner:GUANGDONG HEPU POWER TECH

Electric appliance shell and electric appliance

The utility model discloses an electric appliance shell, which comprises a first shell, a second shell and a cavity formed by assembling the first shell and the second shell and used for accommodating an electric component, and an assembling gap of the first shell and the second shell is sealed by a sealing structure formed by matching the first shell and the second shell. The sealing structure comprises a first sealing rib and a first sealing groove which are arranged on the first shell, and a second sealing rib and a second sealing groove which are arranged on the second shell; the first sealing rib is matched with the second sealing groove in an inserted mode, and the first sealing groove is matched with the second sealing rib in an inserted mode; one side of the first sealing rib and one side of the second sealing rib are in interference fit to form a first side sealing part; the other side of the first sealing rib and the second sealing groove are in relative close contact through interference fit of the first sealing rib and the second sealing rib to form a second side sealing part. The other side of the second sealing rib is in relative close contact with the first sealing groove through the interference fit of the first sealing rib and the second sealing rib to form a third side sealing part; the first side sealing part is located between the second side sealing part and the third side sealing part. In addition, the utility model further discloses an electric appliance adopting the electric appliance shell.
Owner:ZHEJIANG JIECHANG LINEAR MOTION TECH

Bio-based cross-linking agent for textile waterproofing as well as preparation method and application of bio-based cross-linking agent

PendingCN119638953AImprove waterproof levelFibre treatmentPtru catalystCross linker
The invention discloses a preparation method of a bio-based cross-linking agent for textile waterproofing, which comprises the following steps: 1) adding isocyanate and a sealing agent into a clean four-neck flask, and carrying out prepolymerization reaction at the temperature of 90-125 DEG C; (2) adding a solvent into a system after the reaction in the step (1) is completed, cooling to 70-95 DEG C, adding a chain extender and a hydrophilic group, and carrying out heat preservation reaction for 2-3 hours to carry out chain extension reaction; 3) after the chain extension reaction in the step 2) is completed, adding a catalyst, further reacting for 2-4 hours at the temperature of 95-120 DEG C, then cooling to 60 + / -5 DEG C, selectively adding acid to neutralize the system, and controlling the neutralization degree to be 0.85-1.1 of the mole number of cations; (4) deionized water is added for high-speed dispersion and emulsification until no precipitate exists, and the isocyanate is pentamethylene diisocyanate trimer. The obtained cross-linking agent is environmentally friendly while the waterproof performance is ensured.
Owner:OSKAR NEW MATERIAL TECH RES (JIANGSU) CO LTD +1

Embedded wall lamp

The utility model relates to an embedded wall lamp. The embedded wall lamp comprises a shell and a panel fixedly connected with the shell, the panel is fixedly connected with an inner shell, and the inner shell is located in the outer shell; a light source assembly is arranged in the inner shell, a light emitting chamber allowing light generated by the light source assembly to pass through is arranged on the panel, a waterproof connector and at least one waterproof ventilation valve are fixedly installed at the bottom of the inner shell, and heat generated by work of the light source assembly is discharged out of the inner shell through the waterproof ventilation valves. The waterproof ventilation valve is arranged on the inner shell, and heat generated in the using process of the lamp source assembly is discharged from the inner cavity through the waterproof ventilation valve and enters the outer shell. The waterproof level of the embedded wall lamp is higher than IP65 due to the facts that the fixing ring and the panel are connected in a seamless mode, the connecting ring and the shell are connected in a seamless mode, and the sealing ring and the sealant are arranged.
Owner:DONGGUAN GAOMEI PHOTOELECTRIC LIGHTING CO LTD

A type of waterproof camping lamp

ActiveCN224622838UAvoid unstable waterproof performanceLittle effect of temperature change
This utility model discloses a waterproof camping light, specifically relating to the field of outdoor lighting equipment technology. It includes a waterproof lamp tube, a lamp plate bracket, a control board bracket, and a flashlight bracket. The lamp plate bracket is located inside the waterproof lamp tube. Two square waterproof silicone sealants, one and two, are respectively located at both ends of the lamp plate bracket. The control board bracket and the flashlight bracket are locked to the lamp plate bracket by self-tapping screws, thus compressing and sealing the square waterproof silicone sealants. This waterproof camping light utilizes customized square waterproof silicone sealants and a sandwich of waterproof silicone sealant, which are compressed and sealed by self-tapping screws. This avoids the unstable waterproof performance problem caused by thermal expansion and contraction of traditional O-rings. The sealing effect is less affected by temperature changes, improving the waterproof rating, making it suitable for various outdoor environments, and enhancing the product's durability and reliability.
Owner:ZHONGSHAN LUOCHAO ELECTRICAL APPLIANCES CO LTD