26results about How to "Achieve insulation" patented technology

The application relates to the technical field of cables, and discloses an insulated high-temperature superconducting cable and a preparation method thereof. The insulated high-temperature superconducting cable comprises, from inside to outside, a lining core, a superconducting conductor, an insulation layer, a shielding layer, a heat insulation pipe and a sheath layer. The raw material of the sheath layer comprises the following components in parts by weight: 100 parts of polyvinyl chloride, 10 to 15 parts of ethylene-vinyl acetate copolymer, 4 to 6 parts of silicone rubber, 20 to 30 parts of composite filler, 5 to 8 parts of compatilizer, 2 to 5 parts of stabilizer and 6 to 10 parts of plasticizer. The raw material of the composite filler comprises the following components in parts by weight: 40 parts of palygorskite powder, 2 to 5 parts of chitosan and 4 to 8 parts of vinyl chloride-methyl methacrylate copolymer. The palygorskite powder, the chitosan and the vinyl chloride-methyl methacrylate copolymer are compounded to form the composite filler, and the composite filler is added into the cable sheath layer, so that the mechanical properties of the cable sheath layer can be effectively improved.

The present disclosure relates to a cutterhead assembly and a slurry shield tunneling machine. The cutterhead assembly comprises a cutterhead (10), an electrode mounting seat (20) arranged on the cutterhead (10) and having a first through hole (21) penetrating through the thickness direction of the cutterhead (10), an emitting electrode (30) having a first electrode portion (31) and a second electrode portion (32), the first electrode portion (31) penetrating through the first through hole (21), the second electrode portion (32) being fixedly connected to the electrode mounting seat (20) through a first connecting piece (41), and a first sealing and insulating assembly (50) being compressed between the emitting electrode (30) and the electrode mounting seat (20) and between the emitting electrode (30) and the first connecting piece (41) to insulate and seal the emitting electrode (30) from the electrode mounting seat (20) and the first connecting piece (41).

The application relates to the technical field of power electronic devices, and provides a surface-mounted power integrated module, which comprises a plastic sealing body area, a pin area and an embedded ceramic substrate area, the pin area is provided with surface-mounted welding ends which extend out of the plastic sealing body, the ceramic substrate area is a three-layer composite structure, an inner copper layer is integrated with two sets of power circuit topologies for refrigeration and heating, and the plastic sealing body area is provided with a groove structure at the corresponding positions of the pins to increase the creepage distance. Through high integration and internal insulation design, the module volume is reduced, the power density and assembly efficiency are improved, and the safety requirements of high-voltage applications are met.

The utility model provides a kind of electric core packaging structure and battery, including insulating film and electric core, electric core includes outer circumferential surface and the end face at the both ends of outer circumferential surface, end face is provided with tab, insulating film includes cladding part and extension, cladding part cladding in the outer circumferential surface of electric core, the extension is extended by the edge of cladding part to the position away from cladding part, and the extension is folded to the end face of electric core, the position of the extension is formed with avoidance area, and the tab is placed in the avoidance area.The electric core packaging structure provided by the utility model uses the avoidance area formed by extension to position and protect tab, and at the same time, it is beneficial to the cladding part to cladding the outer circumferential surface of electric core, to realize insulation effect, further avoid the complex assembly process in traditional insulation structure, i.e. the electric core packaging structure provided by the present application can also realize multiple technical effects of simplifying process, improving battery energy density and reducing cost on the basis of playing an insulating role.

This invention relates to the field of battery technology, specifically to a battery. The battery includes a casing and an electrode assembly, the electrode assembly being located within a receiving space formed by the casing. The casing includes a first through-hole, and the battery further includes a connecting mechanism connected to a first tab assembly, the connecting mechanism passing through the first through-hole. The connecting mechanism includes a conductive element and an insulating element, the conductive element being connected to the first tab assembly, and the insulating element being located between the casing and the conductive element. At least one of the interfaces between the conductive element and the insulating element and between the insulating element and the casing forms a bonding region. The bonding region includes a first surface of the conductive element facing the insulating element and / or a second surface of the casing facing the insulating element, the first surface and / or the second surface including a plurality of recesses, the orthographic projection of the insulating element covering the recesses, and the insulating element including protrusions embedded in the recesses. The battery of this invention is applicable to batteries of various thicknesses and can improve the sealing performance and connection strength of the connecting mechanism.

The application discloses an integrated double-break and double-end voltage sensing integrated pole-mounted switch shell, and belongs to the technical field of pole-mounted circuit breakers. The shell is provided with a vacuum break chamber and an isolation chamber which are parallel along the vertical direction. A vacuum arc-extinguishing chamber is arranged in the vacuum break chamber, and an isolating switch assembly is arranged in the isolation chamber. An isolation observation window is arranged on the shell at a position corresponding to the isolation chamber. The isolation observation window comprises an upper observation window and a lower observation window which are nested with each other and can slide relative to each other. The opening and closing states of the isolating switch can be judged by observing whether the color-marked isolation worm can be seen through the observation window. Voltage sensors are arranged on the incoming line side and the outgoing line side of the shell, each of which is composed of a high-voltage capacitor and a voltage equalizing net, so that independent collection of double-end voltage signals of the incoming line and the outgoing line is realized. The vacuum break and the sliding isolation break are integrated in one body, the state of the isolation break can be directly and visually judged through the adjustable observation window, and the application has the advantages of compact structure, direct and visual state judgment and the like.

This invention relates to the field of semiconductor technology and discloses a curved cadmium telluride thin-film photovoltaic module and its fabrication method. The fabrication method includes: depositing a transparent conductive layer and a cell layer sequentially from bottom to top on one side surface of a glass substrate; forming a P1 laser groove penetrating the transparent conductive layer and the cell layer; sequentially forming a P2 laser groove penetrating the cell layer and a contact layer, the contact layer being located on the surface of the cell layer and covering the inner wall of the P2 laser groove; forming a P3 laser groove penetrating the contact layer and the cell layer, wherein the interior or bottom of the P3 laser groove is a filling layer; performing a hot bending process; forming a first back electrode layer on the surface of the filling layer and a second back electrode layer on the surface of the contact layer; the porosity of the first back electrode layer is greater than that of the second back electrode layer; and removing the filling layer and the first back electrode layer corresponding to the P3 laser groove position using a film removal solution to form a groove. This invention can meet the integration and fabrication of cadmium telluride thin-film modules with arbitrary curved shapes, improving the design flexibility and efficiency of the modules.

This invention discloses a method and system for assessing the insulation aging status of high-voltage equipment, relating to the field of high-voltage equipment insulation detection technology. The invention first extracts original image data of high-voltage equipment with different insulation states, aging types, and degrees from historical insulation aging records, constructs a standard sample library, and preprocesses it to obtain standard image features. Then, it collects image features of the equipment to be assessed, compares them with the standard samples to calculate the comprehensive similarity, determines the insulation state, and identifies the aging type. Next, it extracts operating and environmental parameters, analyzes their influence on the target aging type, and calculates a standard influence benchmark value. Then, it combines the similarity and the two benchmark values ​​to comprehensively assess the insulation aging degree, finally classifying the aging level and triggering the corresponding early warning mechanism. This invention, through the fusion assessment of image features and operating environmental parameters, can identify insulation aging types and calculate the aging degree, achieving high-voltage equipment insulation aging classification and accurate early warning.

According to the rigid polyimide resin for the anode electrophoretic paint and the anode electrophoretic paint provided by the invention, the polyimide resin is rigid water-soluble high-molecular-weight resin, has good insulating property, high temperature resistance and electrolyte resistance, and can be used for protecting a shell film of a power battery when being used for protecting the shell film of the power battery. And the interior and / or the exterior of the power battery can have relatively good insulation, temperature resistance and electrolyte resistance protection.

The utility model provides an underwater brushless motor. The underwater brushless motor comprises a stator assembly and a rotor assembly. The motor is characterized in that the stator assembly comprises a shell and a stator winding arranged on the inner side of the shell, and sealant wrapping the stator winding in a sealed mode is arranged in the shell; the rotor assembly comprises a rotor cylinder and a magnetic ring arranged on the side wall of the rotor cylinder in a sealed mode. A plurality of integrally formed paddles are arranged on the inner side of the rotor cylinder; at least two ceramic bearings are connected between the stator assembly and the rotor assembly, and the rotor assembly is rotatably connected with the stator assembly through the ceramic bearings. The motor adopts a non-central-spindle and non-support design, and the blades and the rotor cylinder are directly integrally formed, so that water flow and sundries can freely pass through the interior of the motor and are not easily wound by foreign matters such as silk threads, motor faults caused by jamming are reduced, and the system stability is improved.

The split type measuring device of the present invention comprises: a first annular core which forms a magnetic closed loop around a first power line and is composed of a first upper core and a first lower core; and a second annular core that forms a magnetic closed loop around the second power line and is composed of a second upper core and a second lower core, the upper module and the lower module being capable of being coupled and separated, the upper module including an upper housing for accommodating the first upper core and the second upper core, and the lower module including a lower housing for accommodating the first upper core and the second upper core. The lower module includes a lower case for accommodating a first lower core and a second lower core, and measures the current of the first power line using the first annular core and the current of the second power line using the second annular core. A pair of first contact regions in which the first upper core and the first lower core are in contact with each other and a pair of second contact regions in which the second upper core and the second lower core are in contact with each other are provided so as to be spaced apart from each other in the direction in which the first power line and the second power line extend.

The utility model discloses a cover plate assembly which comprises a cover plate, a tab lead-out hole is arranged on the cover plate, a tab adapter is arranged in the tab lead-out hole, the tab adapter and the cover plate are insulated and sealed, a tab adapter hole is arranged in the tab adapter, and the tab adapter hole is communicated with the tab lead-out hole. And the geometric dimensions of the tab transfer holes are gradually reduced from inside to outside. The utility model further discloses a battery which comprises a battery body, the battery body comprises a shell and a battery cell, the shell comprises an outer shell and a cover plate assembly covering the outer shell, the cover plate assembly adopts the cover plate assembly, the battery cell is provided with tabs, and the tabs are arranged on the battery cell. Pole columns matched with the pole lug adapter holes are welded on the pole lugs; and the pole columns and the pole lug adapter pieces are welded and sealed by a circle. The battery and the cover plate assembly thereof disclosed by the utility model have the advantages of simple structure and convenience in assembly, and the sealing performance and the electrical connection performance of the tabs can be ensured.

The invention relates to the field of electric pumps, in particular to a double-source mute electric pump. The device comprises a motor assembly and an oil pump. The front end of the motor assembly is provided with a plurality of interfaces, the bottom end of the motor assembly is connected with a plurality of damping assemblies, a stator is arranged in the motor assembly and comprises a plurality of stator assemblies which are annularly and uniformly distributed, each stator assembly comprises a silicon steel part, a high-voltage winding coil and a low-voltage winding coil, and a resin layer is arranged on the periphery of each silicon steel part in an injection molding mode. The silicon steel pieces are provided with winding grooves I and winding grooves II which are distributed in a staggered mode, partition type containing cavities are formed between the adjacent silicon steel pieces, the high-voltage winding coils are wound around the winding grooves I, and the low-voltage winding coils are wound around the winding grooves II. The oil pump is a screw mute gear pump and is detachably installed at the rear end of the motor assembly. The resin layers are arranged on the peripheries of the silicon steel sheets in an injection molding mode to achieve the insulation effect, the high-voltage windings and the low-voltage windings are wound around the magnetic steel grooves at intervals, insulation paper does not need to be inserted for insulation, and the high-voltage windings and the low-voltage windings do not affect each other.

The utility model discloses a kind of increase insulation distance structure relay, it is related to relay technical field, including shell;Bottom plate being installed in the bottom of shell;Relay skeleton being installed in the top of bottom plate and being located inside shell;Load current loop mechanism being installed on relay skeleton;Relay magnetic circuit structure being installed inside relay skeleton and extending to outside, the inside of shell, bottom plate and relay skeleton are provided with corresponding point glue groove, and shell, bottom plate and relay skeleton are covered by glue through point glue groove.The utility model, by glue penetration principle, make relay internal high voltage and low voltage drive structure mutually isolated, increase insulation distance, improve the creepage distance of relay, and higher safety.

The application provides an arc heater ballast resistor fireproof fixing device. The arc heater ballast resistor fireproof fixing device comprises a metal frame and a ceramic fixing assembly for fixing the ballast resistor on the metal frame, the ceramic fixing assembly comprises a first ceramic fixing piece, a second ceramic fixing piece and a ceramic buckle, the ballast resistor has a bending part and a connecting part connected with the bending part, the metal frame has a hollow part corresponding to the bending part, the first ceramic fixing piece is fixed in the hollow part of the metal frame, the second ceramic fixing piece is fixed on the metal frame, and the bending part and the connecting part of the ballast resistor are fixed on the first ceramic fixing piece and the second ceramic fixing piece through the ceramic buckle respectively. The arc heater ballast resistor fireproof fixing device solves the fire risk caused by the sharp rise of the surface temperature of the ballast resistor under the abnormal condition of large current or cooling water supply, and has the advantages of simple structure, light weight and high reliability.

This disclosure relates to the field of battery technology, specifically to a battery and its manufacturing method and device. The battery includes a housing and a cover plate. The housing has an open cavity. The cover plate is disposed at the opening of the housing to seal the opening. The housing includes a main body and a first flange. The first flange is connected to the end of the main body near the cover plate and extends away from the cover plate. The cover plate includes a main body and a second flange. The second flange is disposed at the edge of the main body and extends towards the main body near the housing. The first flange and the second flange are welded together. This avoids heat damage to the terminal assembly or cell caused by welding the housing and cover plate, improving the battery yield and safety.

The utility model discloses a kind of PTC heater for energy storage product, including water pipe and PTC heater is equipped with water tank on water pipe, water pipe is divided into two sections, it is respectively set on the opposite two ends of water tank and is integrally connected with water tank, the lumen of water pipe is communicated with the inner chamber of water tank, PTC heater includes core seat, PTC heating core, core seat includes at least one with the seat body of the PTC core cavity of plate, PTC heating core is set in PTC core cavity, PTC heating core is wrapped with heat-conducting silica gel sheet, outer core seat is set in water tank, PTC core cavity has two heat-conducting surfaces, heat-conducting surface is parallel with the water flow direction of water tank.Compared with prior art, by setting PTC heater in water tank, make two heat-conducting surfaces of PTC heater contact with medium, give full play to heat dissipation performance, PTC heating core is wrapped by heat-conducting silica gel sheet, realize insulation, to improve the performance of product.

The utility model discloses a fixed cutter shaft roller insulation bearing which comprises a joint bearing, an expansion sleeve arranged outside the joint bearing in a sleeved mode, a first outer end cover and a second outer end cover, the first outer end cover and the second outer end cover are installed at the two ends of the insulation bearing respectively, and a first insulation layer is arranged between the first outer end cover and the joint bearing. A second insulating layer is arranged between the second outer end cover and the knuckle bearing, and a third insulating layer is arranged between the knuckle bearing and the expansion sleeve. The fixed cutter shaft roller is simple in structure, low in cost and good in insulation effect, insulativity between the fixed cutter shaft roller and a machine table and between the fixed cutter shaft roller and a plurality of mechanisms is guaranteed on the premise that working performance of original machine table equipment is not changed, and working stability of the original machine table is guaranteed.

The utility model belongs to electric motor car technical field, concretely relates to a liquid cooling charging seat for electric motor car, water tank for charging seat, the liquid cooling charging seat for electric motor car of the utility model includes: casing, is provided with a pair of guide link piece in it, one end of guide link piece is used for connecting cable, the other end is used for and is connected with connector, water tank is arranged in the casing, and its bottom is pasted with guide link piece, the flow pipe group is connected with water tank, is suitable for the heat dissipation of the cooling medium that is guided to flow through water tank, among them water tank adopts metal material, and its outer surface is provided with aluminium oxide layer or aluminium nitride layer, the liquid cooling charging seat for electric motor car, water tank for charging seat of the utility model replaces existing plastic water tank through adopting metal water tank and setting aluminium oxide layer or aluminium nitride layer on the outer surface, has improved the heat conductivity of water tank greatly and has reduced the manufacturing cost greatly while realizing insulation effect.

The invention provides a high-temperature-resistant continuous fiber reinforced non-metal composite pipe and a preparation method thereof. The non-metal composite pipe has the advantages of high temperature resistance, high pressure resistance and high medium adaptability. The high-temperature-resistant continuous fiber reinforced nonmetal composite pipe sequentially comprises a lining layer, a middle layer and an outer layer from inside to outside, and a pipe of the lining layer (1) is made of polyphenylene sulfide or modified polyphenylene sulfide; the pipe of the middle layer is made of a continuous carbon fiber reinforced thermosetting resin composite material; and the pipe of the outer layer is made of a continuous glass fiber reinforced thermosetting resin composite material. According to the high-temperature-resistant continuous fiber reinforced nonmetal composite pipe, the long-term service temperature exceeds 130 DEG C, the blank of lack of high-performance nonmetal composite pipes capable of resisting the temperature of 93 DEG C or above in China is filled, and development and progress of high-performance nonmetal pipes for oil and gas fields are promoted.

The application discloses an electric core and a battery. The electric core comprises a pole core, an insulation part and a top cover assembly. The pole core comprises a pole core body and a pole lug. The pole core body comprises a body part and a protruding part. A side surface of the body part along a second direction is a first surface. The pole lug is connected to the first surface. The protruding part is also connected to the first surface and is arranged in a first direction and spaced from the pole lug. The protruding part protrudes outward from the first surface along the second direction. The top cover assembly covers the first surface of the body part. The insulation part is arranged between the protruding part and the top cover assembly and wraps the protruding part. In this way, the volume of the electric core is increased to increase the capacity of the electric core, and the insulation performance is realized through the insulation part.

This invention belongs to the field of batteries, specifically a heat exchange component. It overcomes the problem of excessive localized heat at the terminals of individual cells in existing battery packs, leading to thermal runaway. The heat exchange component includes a water-cooled pipe and multiple conductive components. The inner cavity of the water-cooled pipe serves as a cooling water flow channel. Multiple conductive components are spaced apart along the length of the water-cooled pipe on its outer wall. Each conductive component connects the polarity terminals of two adjacent individual cells, achieving series connection of the individual cells. The water-cooled pipe and each conductive component are insulated. The heat generated at the battery polarity terminals is dissipated through the heat exchange component. Simultaneously, the conductive components of this invention enable series connection between individual cells. Furthermore, this invention can achieve heat exchange using water cooling. Compared to insulating oil cooling, water cooling better meets the efficient, economical, and environmentally friendly cooling requirements of battery systems.

The utility model relates to cable technical field discloses a kind of water-blocking type insulated cables, including wear-resistant coating, the bottom of wear-resistant coating is fixedly connected with water-blocking sheath, the bottom of water-blocking sheath is fixedly connected with high tenacity layer, the outside of high tenacity layer is fixedly connected with antiskid coating, the similar side of water-blocking sheath and high tenacity layer is fixedly connected with antiskid coating, the inside of high tenacity layer is fixedly connected with water-blocking tape, the inside of water-blocking tape is fixedly connected with fixed block, the bottom of fixed block is fixedly connected with partition frame, the similar side of partition frame and water-blocking tape is fixedly connected with fixed block.In the utility model, wear-resistant coating surface layer of water-blocking sheath is protected first, avoid the influence of internal transport and harsh environment, by high tenacity layer inside water-blocking tape preliminary waterproof, internal water-blocking shield layer blocks moisture penetration channel, external fixed filling inner shield layer and outer covering impermeable coating insulation layer.

The utility model relates to the field of batteries, and discloses a battery pack. The battery pack comprises at least two batteries, and a buffer piece is arranged between the adjacent batteries. The battery comprises a shell and a cover plate, the shell is provided with at least one opening, the cover plate covers the opening, a battery cell is arranged in the shell, the battery cell comprises a battery cell body and a tab connected with the battery cell body, and the tab is connected with a pole assembly of the cover plate; the outer surface of the shell is provided with an insulating part, the insulating part is provided with a first area and a second area, and the thickness of the insulating part corresponding to the first area is larger than that of the insulating part corresponding to the second area; in the height direction of the battery, the tabs are at least partially overlapped with the first region; the buffer part is at least partially arranged between the first areas of the adjacent batteries. According to the battery pack provided by the invention, the connection stability of the tabs is prevented from being influenced by the reverse acting force of the buffer strips while the installation stability is kept.

The invention relates to an electrode assembly, a battery monomer, a battery and a power utilization device, the electrode assembly comprises pole pieces and diaphragms, each diaphragm comprises a main body section, and the pole pieces and the main body sections of the diaphragms are stacked and wound to form an electrode main body; at least one axial end of the electrode main body is provided with a tab protruding out of the main body section; the at least one layer of diaphragm comprises a first extension section connected with the main body section, and the first extension section is wound outside the electrode main body for at least one circle; the first extension section is provided with a convex part protruding out of the main body section along the axial end part, and at least part of the convex part is folded towards one side close to the center of the electrode main body so as to cover the edge part of the tab at the corresponding end. The first extension sections are wound at all positions of the electrode main body in the axial direction, so that the radiuses or diameters of all parts of the electrode assembly can be ensured to be the same, all parts of the electrode assembly are uniformly expanded when the electrode assembly is expanded, the outer ring pole piece is not easy to break, and the use performance of the battery monomer is ensured.

This invention relates to the field of reactor technology, and more particularly to a reactor body fixing structure, comprising a lower fixing component located at the connection between the bottom of the reactor body and the bottom of the tank interior, and an upper fixing component located at the connection between the top of the reactor body and the bottom of the tank cover. The reactor body fixing structure of this invention consists of two parts: the lower fixing component and the upper fixing component. By simultaneously adding fixing structures to the upper and lower parts of the reactor body to apply bidirectional constraints in both longitudinal and transverse directions, the reactor body can be connected to the tank as a whole without relative displacement, thus solving the problems of reactor body loosening, deformation, and displacement. Insulation between the reactor body and the tank is achieved by placing an insulating pad between the reactor body and the tank, with the pad fastening bolts fitted with insulating tubes. Similarly, insulation between the reactor body and the tank cover is achieved by placing a tank cover insulating pad between the reactor body and the tank cover, with the core clamp fastening nut fitted with an insulating tube.