543results about How to "Effective waterproof" patented technology

A power circuit section including a plurality of bus bars is disposed through an insulation layer on a circuit arrangement surface of a heat radiation member. An end of each of the bus bars is folded up from the circuit arrangement surface to form an external connection terminal. An enclosure wall member that surrounds the power circuit section including the external connection terminal is disposed on the heat radiation member. A connector housing contains an external connection connector that comprises a bottom portion provided with terminal, a through-hole into which the external connection terminal is inserted, and a hood that surrounds the external connection terminal. The external connection connector can be coupled to another connector together with the external connection terminal. A waterproof layer is formed within the enclosure wall member so that at least a part of the power circuit section is sealed and the terminal through-hole is sealed.

The invention discloses a button waterproof structure of a washing machine; the button waterproof structure comprises a control panel on the top of the washing machine, a decoration board above the control panel and a computer board component below the control panel; the control panel is provided with a plurality of sets of buttons and display areas corresponding to a computer board circuit; the computer board component comprises a circuit board with a display screen, a computer board box below the computer board and used to support the computer board, and a box cover plate above the computer board and used to protect the computer board; the button waterproof structure is characterized in that the lower bottom surface of the decoration board and the upper plane of the box cover plate are provided with an upper lug and a lower lug corresponding to the display areas, so as to protect a water permeability resistant component of the display screen; waterproof mechanisms used to prevent water from being leaked from the gaps of button holes are arranged at the positions of corresponding buttons of the decoration board and between the buttons and the box cover plate. The structure not only can ensure the production efficiency and does not greatly increase the production cost, but also can make sure the buttons have good touch feeling and the waterproof performance meets requirements.

A power circuit section including a plurality of bus bars is disposed through an insulation layer on a circuit arrangement surface of a heat radiation member. An end of each of the bus bars is folded up from the circuit arrangement surface to form an external connection terminal. An enclosure wall member that surrounds the power circuit section including the external connection terminal is disposed on the heat radiation member. A connector housing contains an external connection connector that comprises a bottom portion provided with terminal, a through-hole into which the external connection terminal is inserted, and a hood that surrounds the external connection terminal. The external connection connector can be coupled to another connector together with the external connection terminal. A waterproof layer is formed within the enclosure wall member so that at least a part of the power circuit section is sealed and the terminal through-hole is sealed.

Preservative composition for various materials and method of preserving the same is disclosed. The preservative composition includes at least one silane-containing material and at least one hydrocarbon solvent containing molecules of at least five carbon atoms.

Preservative composition for various materials and method of preserving the same is disclosed. The preservative composition includes at least one silane-containing material and at least one hydrocarbon solvent containing molecules of at least five carbon atoms.

The invention relates to a high performance epoxy resin waterproof coating which comprises components A and B, wherein the component A comprises the following raw materials in parts by weight: 95-105 parts of epoxy resin, 10-15 parts of an active diluent, 2-5 parts of a surfactant, 1-2 parts of a defoamer, 1-2 parts of a flatting agent, 2-5 parts of an anti-settling agent, 3-5 parts of a plasticizer and 250-300 parts of functional filler; the component B comprises the following raw materials in parts by weight: 20-30 parts of a modified polyether amine curing agent, 10-20 parts of a modified aliphatic polyamine curing agent and 3-4 parts of a coupling agent. The high performance epoxy resin waterproof coating provided by the invention has considerably high elongation at break, tensile strength and chemical resistance. Experiments verify that the elongation at break of the high performance epoxy resin waterproof coating provided by the invention can reach over 80%, the tensile strength can reach over 12MPa, and the humid substrate bonding strength can reach over 4MPa. The coating which is soaked by an H2SO4 aqueous solution for 15 days is free of cracks, empty bumps and falling.

The invention relates to a ventilation and package method of a fuel cell galvanic pile, which comprises a closed package frame. All components of the fuel cell galvanic pile are packaged in the package frame; a ventilation opening is arranged on one surface of the panel of the closed package frame; the ventilation opening is connected with the air blower outlet of the air supplying device of the fuel cell galvanic pile; an air outlet is arranged on the other surface of the panel of the closed package frame; the air outlet is provided with a hydrogen detector which can detect the concentration of the hydrogen inside the closed package frame of the fuel cell galvanic pile. Compared with the prior art, the invention has the advantages that the structure is simple, dust and water can be effectively prevented, the hydrogen concentration can be timely detected, and hydrogen discharging treatment can be timely performed, thereby the explosion caused by the leakage of the hydrogen in the fuel cell galvanic pile can be effectively prevented.

The invention discloses a convenient electric cabinet for electric engineering. The electric cabinet comprises a cabinet body, an installation rack is arranged at the upper side in the cabinet body, the right end of the installation rack is fixed on the right inner wall of the cabinet body; a reinforcing rib is arranged at the lower side of the installation rack; a driving motor is arranged at the left end of the upper side of the installation rack, and the driving motor is a stepping motor; a gear is arranged on an output shaft of the driving motor, and a rack is vertically arranged at the center of the upper side in the cabinet body. The convenient electric cabinet for electric engineering disclosed by the invention is capable of automatically keeping out the sun and the rain, and dehumidifying the internal of the cabinet body; the dehumidifying effect is good, the normal work of the electric cabinet is guaranteed, the electric cabinet can be conveniently moved and fixed, and the convenience is high; furthermore, the gap between the observation glass and a cabinet door is reduced so as to effectively prevent external dust an impurity from entering the electric cabinet.

A waterproof structure manufacturing method of a caisson-type toilet includes manufacturing of a basic layer, an overhead layer and a ground layer, has the advantages of being capable of effectively preventing the common problems that pipelines are broken, water is leaked due to the fact that connectors are not firm and water is accumulated through two-time waterproof structuring and two-time water-discharging structuring, avoiding the spring water phenomenon of the ground of the toilet, facilitating air drying of the toilet and preventing the toilet from being under a wet environment for a long time, and is suitable for the caisson-type toilet with a caisson which is 35-50cm deep.

The invention discloses a leucoderma covering agent. The leucoderma covering agent is a covering liquid or covering cream, wherein the covering liquid mainly comprises 1,2-propyleneglycol, jojoba oil, a preservative, a surfactant, vitamin E acetate, 1,3-dihydroxyacetone, an edible pigment and deionized water; and the covering cream mainly comprises magnesium aluminum silicate, 1,2-propyleneglycol, methyl parahydroxybenzoats, propyl p-hydroxybenzoate, imidazolidinyl urea, talcpowder, titanium dioxide, iron oxide, jojoba oil, vegetable fat, vitamin E acetate, stearyl alcohol, stearic acid, decapolyglycerol monooleate, diolein, triethanolamine and deionized water. The covering liquid has waterproof, sweatproof and wear-resistant effects, and is durable; the covering cream is quick in coloration and natural in color formation, and is convenient to use; and the covering liquid and the covering cream are combined to provide comprehensive covering for leucoderma patients.

A water-proof coating system for reflecting solar radiation, which comprises optionally a base layer on a substrate and a reinforcing layer on the base layer; a white reflective and water-proof layer on the substrate or on the reinforcing layer; and a decorative and reflective layer on the white reflective and water-proof layer; wherein the decorative and reflective layer comprises colored infrared-reflective pigments. Water-borne coatings for forming a decorative and reflective layer in the coating system, which comprise acrylic polymers, colored infrared-reflective pigments and UV cross-linking agents. Said coating system can reflect solar radiation with high efficiency and effectively prevent water from penetrating through; has strong stain resistance and good weather resistance; has strong adhesion to various substrates; and also offers diversified colors for choosing. Said water-borne coatings can be applied easily, and are environment friendly.

The invention discloses a packing device of fuel battery electric pile, which comprises the following parts: closed-typed sealing rack to seal all components of fuel battery electric pile in the pack, wherein the sealing rack contains vent hole, ventilator and air pipe inlet, air pipe outlet, hydrogen pipe inlet, hydrogen pipe outlet, cooling pipe inlet, cooling water outlet corresponding to each flow inlet pipe, wherein the hydrogen detector is set in the vent hole, which extends a vent pipe outsides; the vent fan is set on the vent pipe; the ventilator extends a ventilating pipe outsides with aerator on the vent hole. The invention can detect hydrogen density to discharge hydrogen disposal timely, which avoids explosion due to hydrogen pipe cracking.

The invention discloses water-in-oil baby nappy cream which comprises deionized water, glycerin, maleic acid diethyl hexyl acetate, zinc oxide, butanediol, margarine fruit tree butter, 1, 2-pentanediol, tridecyl trimellitate, polydimethylsiloxane, cetyl PEG / PPG-10 / 1 polydimethylsiloxane, sodium lactate, C18-38 alcohol hydroxyl stearoyl stearate, sorbitan sesquioleate, prinsepia utilis seed oil, bisabolol, ginger root extracts, purslane extracts, sodium hyaluronate extracts, sodium hyaluronate, allantoin, tocopheryl acetate, polyhydroxystearic acid, dimethiconol, magnesium sulfate and EDTA (ethylene diamine tetraacetic acid) disodium. The water-in-oil baby nappy cream solves the problems of low-temperature precipitation of water-in-oil cream and difficulty in adding high-content zinc oxide into a cream system, stability of the cream is improved, and baby nappy rash is safely treated. The invention further discloses a preparation method of the water-in-oil baby nappy cream.

The invention relates to a stitched seam structure (1) comprising a first material web (10) having a first barrier layer (42) and a first edge (14) that is on the outer contour of the first material web (10), a second material web (30) having a second barrier layer (42) and a second edge (34) that is on the outer contour of the second material web (30), and at least one seam (21) that joins the first and the second material webs (10, 30) in a seam area (3) thus forming a first seam allowance (13) between the seam (21) and the first edge (14) of the first material web (10) and forming a second seam allowance (33) between the seam (21) and the second edge (34) of the second material web (30). The first and the second material webs (10, 30) are arranged on top of each other in the seam region (3), and the second seam allowance (33) is folded about the first edge (14) of the first material web (10) and covers the at least one seam (21), forming a seam covering (2), said seam covering (2) being joined to the first material web (10) in the seam region (3). Said stitched seam structure can also help to produce water-tight activity clothing which are comfortable to wear.

The invention relates to a preparation method of an environment-friendly dry powder pointing agent taking slag powder as main raw materials, belonging to the technical field of building material preparation processes. The environment-friendly dry powder pointing agent comprises the raw materials in percentage by weight: 55-75 percent of slag powder, 2-10 percent of cement, 10-30 percent of calcite powder, 2-5 percent of re-dispersible emulsoid powder and 0.05-0.3 percent of thickening agent. The environment-friendly dry powder pointing agent has good caking property, good durability and high antiseepage grade, is not in contact with a tapestry brick, generates no cracks, and can effectively inhibit saltpetering. The invention widens a new approach for the resource utilization of the slag powder and has better social efficiency and economic benefit.

The invention discloses an electrical box assembly which comprises an electrical box used for accommodating electrical components, as well as a rear cover and a first fan, wherein at least one first air inlet, at least one first air outlet and at least one window used for allowing a radiator to extend out are formed in the electrical box; at least one second air inlet and at least one second air outlet are formed in the rear cover; the window and the outer side of the first air outlet are covered with the rear cover, and an air duct communicated with the second air inlet and the second air outlet is surrounded by the rear cover and the electrical box; and the first fan is mounted at the second air outlet. According to the electrical box assembly, a double-air-duct design is adopted, the radiating fan is integrated inside the electrical box, and the fan is used for intensively extracting out heat in the electrical box, so that the radiating efficiency of the electrical box is improved, and at the same time, heat radiation of the electrical box is not influenced by the environment and the working condition. The invention further discloses a VRF air-conditioning unit using the electrical box assembly.

The invention relates to an unmanned aerial vehicle for plant protection. The unmanned aerial vehicle for plant protection comprises a center disk, a maintenance end cover and a medicine box, wherein the maintenance end cover and the medicine box are arranged on the center disk; a plurality of mounting holes for being matched with vehicle arms are formed in the center disk; motors and rotors which are connected with rotating shafts of the motors and arranged on the upper portions of the vehicle arms are arranged at the ends of the vehicle arms; a control device is arranged in the center disk and is in signal connection with the motors; the positions, on the lower portions of the rotors, of the bottoms of the vehicle arms are detachably connected with hanging rods connected with nozzles through sleeves; the nozzles communicate with the bottom of the medicine box through a medicine pipe equipped with a medicine pump; buffer gaskets are integrally arranged at the bottom of the medicine box; a limiting nail is fixedly arranged in the position, where the inner walls of the buffer gaskets make contact with the medicine box, of the bottom of the medicine box; the limiting nail is sleeved with a damping spring, and the sharp portion of the limiting nail is arranged downward; and one end of the damping spring is fixedly connected with the medicine box, and the other end of the damping spring is located on the upper portion of the sharp portion of the limiting nail. According to the unmanned aerial vehicle for plant protection, the structure is simple, the design is ingenious, vibration impact in the falling process of the unmanned aerial vehicle can be effectively buffered, and damage to the unmanned aerial vehicle structure is prevented.

The invention discloses a luminaire radiator with good heat radiation effect and an LED luminaire with a fan. The LED luminaire comprises an LED light source component (1), a luminaire radiator (2), a cooling fan (3), a driving circuit board component (4), and an air inlet hood (6), wherein the LED light source component (1) comprises an LED chip (11) and an LED radiating substrate (12); the luminaire radiator (2) comprises a base plate (21); the undersurface of the base plate (21) is used for being attached to a flat surface of the LED radiating substrate and the top surface of the base plate (21) is provided with a heat radiating part (22) and a plurality of convex parts (23) or concave parts, wherein the heat radiating part is used for heat radiation and containing the cooling fan, and the plurality of convex parts (23) or concave parts are used for increasing the heat radiation area; the cooling fan (3) is arranged on the heat radiating part (22); the air inlet hood (6) is connected with the luminaire radiator (2), wraps and covers the cooling fan (3) therein; the upper part of the air inlet hood (6) has a cavity; the driving circuit board component (4) is positioned in the cavity; and the side wall of the cavity is provided with an air inlet hole (61). The invention can be applied to the field of LED lighting.

The invention provides an exterior wall insulation and decoration system provided with the functions of thermal insulation, decoration and fire prevention and integrally constructed with the structure, and a manufacture and installation method thereof. The insulation and decoration system includes insulation decorating plates serving as exterior formworks, as well as horizontal and vertical caulking strips and fixing pieces, wherein grooves are arranged on the peripheries of the insulation decorating plates; the caulking strips are arranged between the insulation decorating plates and embedded in the grooves; the horizontal caulking strips are provided with horizontal ribs and used for supporting the insulation decorating plates at the upper part during the installation, and installation seams with fixed width are formed between the insulation decorating plates; when the formworks are supported, gaps reserved between the horizontal and the vertical caulking strips are used for mounting wall-penetrating anchor rods; and anchor bolts are embedded in the insulation decorating plates, threads are arranged at the end parts of the anchor rods and used for being connected with the fixing pieces. According to the invention, the fixing pieces are used for connecting the insulation decorating plates with light steel frameworks inside a concrete wall body through the anchor bolts, so that the distance from the light steel frameworks to the inner sides of the insulation decorating plates is kept unchanged, and the thicknesses of protective layers on the two sides of concrete after concreting are accurate.

The invention discloses an accidental water immersion monitoring device for the outdoor power box facility, and the structure of the device comprises a power box top cover, a power box, cooling holes,a waterproof convex edge, a power box door, a waterproof sealing ring, a box door lock, and a micro-liquid alarm apparatus. The power box top cover is disposed above the power box, and is verticallyconnected with the power box through an electric box. The cooling holes are uniformly disposed below two sides of the power box at equal intervals. The cooling holes and the power box are of an integrated structure, and the waterproof convex edge is disposed at an edge of a box door of the power box. The waterproof convex edge and the power box are of an integrated structure, and the power box door is disposed in front of the power box. The beneficial effects of the invention are that the device is provided with the micro-liquid alarm apparatus, can monitor a very small amount of moisture, canmonitor the small amount of water in the power box, can quickly give an alarm signal, improves the monitoring sensitivity of the device, effectively protect the power box, and prolongs the service life of the power box.

Cast and bandage protector that avoids use of a separate sealing ring and therefore can be folded over upon itself, has suitability for convenient packaging and at the same time still provides an effective waterproof sealing arrangement.

Cast and bandage protector that avoids use of a separate sealing ring and therefore can be folded over upon itself, has suitability for convenient packaging and at the same time still provides an effective waterproof sealing arrangement.

A method for treating a piece of wood impregnates the piece of wood with a water repellent, wherein the water repellent is solid at ambient temperatures. The method includes the steps of providing a piece of wood to be treated; heating the piece of wood for a predetermined period of time, the piece of wood being heated at a temperature A; subsequently immersing at least a portion of the piece of wood in a bath of liquefied water repellent, the bath being at a temperature B, for a predetermined period of time. Thereafter the piece of wood is removed from the bath and allowed to cool. The temperature A is above 100° C. and the temperature B is below 100° C. but above a liquefying point for the water repellent, and a differential between temperatures A and B is at least 60° C.

The invention discloses a waterproof method for an electronic device and a waterproof electronic device. The electronic device comprises a circuit board; the circuit board comprises a board body, a plurality of conducting elements and a key device. The waterproof method comprises the following steps of: applying first non-solid glue to directly coat the key device, solidifying the first non-solid glue to form a first waterproof layer, applying second non-solid glue to at least directly coat the conducting elements, and solidifying the second non-solid glue to form a second waterproof layer. Finally, the circuit board, on which a plurality of waterproof layers are coated, is assembled in a casing body so as to form the waterproof electronic device.

The invention relates to the technical field of heat dissipation structures, and discloses a heat dissipation waterproof structure and a set top box of the heat dissipation waterproof structure. The heat dissipation waterproof structure comprises an upper cover and a top cover, wherein the upper cover is provided with a ventilation window used for ventilation; the top cover is arranged above the ventilation window and is detachably connected with the upper cover through a connecting assembly; a heat dissipation interval used for heat dissipation and ventilation is formed between the upper cover and the top cover; the upper cover below the top cover is provided with heat dissipation holes and a waterproof assembly. The set top box comprises the heat dissipation waterproof structure. The heat dissipation waterproof structure is attractive in appearance, good in heat dissipation, good in waterproof effect, capable of being detached and convenient to maintain. The use reliability and safety of the set top box provided with the heat dissipation waterproof structure are improved.

A waterproof and dustproof self-radiating type motor-driven automobile direct current voltage changer comprises a radiating shell, a radiating cover plate, side sealing plates, a circuit board, a transformer, a coil, a Schottky diode and a field effect tube, wherein the circuit board is arranged in the radiating shell, the transformer, the coil, the Schottky diode and the field effect tube are respectively fixed on the inner side surface of the radiating shell, the radiating cover plate is fixed on the radiating shell in a sealing way, the side sealing plates are fixed at two ends of the radiating shell in the sealing way, and input-output lead bundles pass through a cable diminishing head and are led from the side sealing plates. As the changer adopts a completely-sealed structure, aluminum plates are coated on three surfaces of the transformer, and then the transformer coated by the aluminum plates are arranged on the radiating shell, motor-driven automobile direct current voltage changer with the structure not only solves the problem that the original automobile-mounted storage battery high voltage is converted to the 12V direct voltage, also can solve the problem of radiating of circuit elements and devices, and simultaneously is waterproof and dustproof; and the service life of the motor-driven automobile direct current voltage changer is prolonged.

The invention discloses a packing device of fuel battery motor with sealing packing rack, which comprises the following parts: ventilating hole, ventilator, air filter inlet, radiator pipe inlet and outlet, electric pile air tail gas drainage hole, electric pile intermittent hydrogen tail gas drainage hole, cistern watering hole and drainage hole; wherein the hydrogen detector is set in the ventilating hole, which extends a ventilating pipe outwards; the ventilating fan is set on the ventilating pipe, which extends a ventilating pipe with aerator outwards. The invention can detect hydrogen density to discharge hydrogen disposal timely, which avoids explosion due to hydrogen pipe cracking.

The invention discloses a waterproof and explosion-proof fire extinguishing box of a cable connector. The waterproof and explosion-proof fire extinguishing box comprises a cavity and a cover body, wherein the cover body and the cavity are connected to form a closed explosion-proof cavity of the cable connector, two energy discharging guide pipes and two groups of fire extinguishing assemblies arearranged on the cover body, each fire extinguishing assembly comprises a fire extinguishing pipe and a smoke sensor, a solenoid valve is arranged at a lower end of the fire extinguishing pipe, the solenoid valve is electrically connected with the smoke sensor, a fire extinguishing agent injection hole is formed in an upper end of the fire extinguishing pipe, and a fire extinguishing pipe is filledwith a fire extinguishing agent. The waterproof and explosion-proof fire extinguishing box of the cable connector is compatible with functions of fire extinguishing and energy discharging, the fire extinguishing assembly is used for extinguishing fire when the cable connector is failure and is ignited, the harm is prevented from being further expanded, and the safety of a cable well is ensured; with the adoption of a mode that the cavity and the cover body are combined and connected, the cable connector is convenient to install and has favorable sealing performance; and the energy dischargingguide pipes and the fire extinguishing assemblies are all integrated on the cover body, the production efficiency is favorably improved, and the waterproof and explosion-proof fire extinguishing boxis also more convenient to install, use and store.