15results about How to "Improve waterproof level" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

A valve body is provided with a valve cavity, the valve cavity is provided with a main valve port, a valve cover is connected with the valve body and provided with a clamping groove, a waterproof coil is located above the valve cover, a magnetism isolating pipe is arranged in a driving cavity, the outer wall of the magnetism isolating pipe is provided with a pressing ring, and a fixed iron core and a movable iron core of the magnetism isolating pipe are arranged in the magnetism isolating pipe. The mute part is arranged between the valve cavity and the main valve port, a first sealing ring of the mute part is embedded in the clamping groove, a diaphragm of the mute part is installed in the installation port and connected with the movable iron core, a convex ring of the diaphragm is embedded in the sealing groove and extends to the position above the first sealing ring, a pressing ring of the diaphragm is attached to the upper surface of the convex ring and abuts against a pressing ring of the magnetism isolating pipe, and a piston of the mute part is arranged in the valve cavity in a sliding mode and matched with the main valve port. The sealing piece is used for opening and closing a pilot valve port of the piston, and the sealing structure seals the driving cavity. The technical scheme has the advantages of low operation noise, strong capability of adapting to a humid environment, relatively low requirement on driving force, large drift diameter of the valve port and the like, meanwhile, the abrasion of a sealing structure can be avoided, and the service life is relatively long.

The utility model belongs to traffic equipment technical field discloses a traffic signal lamp, including a plurality of side -by -side arrangement's lamp group, the lamp group includes lamp stand and lamp cover, the lamp stand is detachably connected with lamp cover, the lamp stand is inlayed with the lamp tray, the lamp cover is provided with the light outlet, a plurality of lamp stands are connected through slide rail, the slide rail sliding cooperation has the locking mechanism, the locking mechanism includes the tooth and the clamp, the tooth and the clamp cooperate each other to inlay traffic signal lamp, the tooth adjustable position's setting on the slide rail. The utility model can conveniently realize the assembly of traffic signal lamp, and can realize quick, convenient position adjustment when installing traffic signal lamp on the road.

This utility model discloses a combined waterproof box structure, including two spliced ​​boxes and a joint between them. A waterproof mechanism is provided at the joint between the two spliced ​​boxes. The waterproof mechanism includes a sealing strip installed within the joint, structural adhesive installed outside the sealing strip within the joint, and a metal cover plate covering the structural adhesive. The metal cover plate includes a pair of L-shaped angle steels on both sides of the joint and a waterproof cover plate fastened and welded to the pair of L-shaped angle steels. The waterproof cover plate has a C-shaped cross-section. One right-angle side of the L-shaped angle steel is welded to the spliced ​​box, and the other right-angle side is close to the joint. The two L-shaped angle steels are mirror-symmetrically arranged, with their other right-angle sides facing each other. The waterproof cover plate is fastened and welded to the corresponding right-angle side of the L-shaped angle steel, with the other right-angle side located inside the waterproof cover plate. The two L-shaped angle steels and the waterproof cover plate form a sealing groove space, and the joint is located within this sealing groove space. Applying this utility model can improve airtightness and increase shear resistance.