14results about How to "Smooth conduction" patented technology

The invention relates to the technical field of magnesium ion battery electrode materials, and discloses a silicate positive electrode material of which the chemical formula is MgNi < x > Mn < 1-x > SiO4, x < = 1; a preparation method of a silicate positive electrode material comprises the following steps: S1, ball-milling and mixing a magnesium source, a nickel source, a manganese source, a silicon source and a fluxing agent according to a certain proportion to obtain a Ni-doped precursor; s2, drying the Ni-doped precursor prepared in the step S1; s3, in a protective atmosphere, pre-sintering the Ni-doped precursor subjected to drying treatment in the step S2, and carrying out heat preservation at 300-400 DEG C for 2-3 hours; and heating to 800-1000 DEG C, continuously preserving heat for 6-8 hours, cooling to room temperature, washing and drying to obtain the Ni-doped silicate positive electrode material with the chemical formula of MgNi < x > Mn < 1-x > SiO4, the material is applied to magnesium ion batteries. According to the technical scheme, through doping of nickel, the problems that when an existing MgMnSiO4 material serves as the positive electrode of the magnesium ion battery, the agglomeration phenomenon is serious, the conductivity is poor, and structural distortion and poor cycle performance are caused by manganese ions can be effectively solved.

The invention provides a preparation method of a stretchable piezoelectric sensor based on oriented PVDF fiber, and relates to the technical field of intelligent sensors, the piezoelectric sensor comprises a packaging layer, a positive TPU film layer, a negative TPU film layer and a PVDF piezoelectric film, the outer surface of the positive TPU film layer and the outer surface of the negative TPU film layer are provided with carbon nanotube particles, and the PVDF piezoelectric film is arranged on the outer surface of the packaging layer. The packaging layer is located on the outer surface of the positive electrode TPU film layer, the outer surface of the negative electrode TPU film layer and the outer surface of the PVDF piezoelectric film. According to the preparation method of the stretchable piezoelectric sensor based on the oriented PVDF fibers, the PVDF nanofiber film with the oriented fiber characteristics is prepared through the electrostatic spinning technology; the PVDF piezoelectric film with high piezoelectric property and high stretchability is obtained by regulating and controlling electrostatic spinning process parameters, the film has high stability and shows good mechanical property through testing, meanwhile, after the film is packaged into a sensor, the open-circuit voltage under different elongation rates is stable through testing, and the mechanical strain of different surface characteristics can be effectively detected.

This utility model discloses a conductive connection terminal, including: a rear sleeve, an inner sleeve, a spring, and a sealing element. The rear sleeve has a first insertion hole, and the inner sleeve is snapped into the opening of the first insertion hole. The inner sleeve has a second insertion hole, which communicates with the first insertion hole. The spring is disposed in the second insertion hole, and the sealing element is disposed in the first insertion hole, with one end of both the inner sleeve and the spring abutting against the sealing element. The end face of the rear sleeve has a conductive layer, and the conductive surface of the inner sleeve is in contact with the conductive layer. The inner sleeve and the conductive layer are made of the same material, which can ensure smooth current conduction between them and avoid electrochemical corrosion caused by the different materials of the inner sleeve and the rear sleeve. Based on this, the rear sleeve can be made of low-cost and lightweight materials (such as aluminum) as needed, thereby achieving the goal of cost reduction and weight reduction. In addition, with the help of the sealing element, electrolyte can be prevented from entering the area between the rear sleeve, the inner sleeve, and the spring, further eliminating the occurrence of electrochemical corrosion.

The application relates to the technical field of heating equipment, and particularly discloses a thick-film heating assembly and a vehicle heater. The thick-film heating assembly comprises a heating core body, the heating core body has a first surface, a first side surface and a second side surface, the first side surface and the second side surface are connected to the two sides of the first surface, a plurality of flow channels are formed in the heating core body, the plurality of flow channels are arranged at intervals along a first direction, and the flow channels penetrate through the first side surface and the second side surface; a heating film is arranged on the first surface; a water inlet pipe is connected to the first side surface and communicates with the plurality of flow channels, and a water inlet cavity is formed in the water inlet pipe; a water outlet pipe is connected to the second side surface and communicates with the plurality of flow channels; and the minimum cross-sectional area of the water inlet cavity along a radial direction is greater than the maximum cross-sectional area of each flow channel along the first direction.

The electronic atomization assembly comprises an outer shell, an atomization top cover and an atomization bottom cover which are sequentially arranged from top to bottom, and further comprises a gas outlet channel, a gas inlet channel, a gas outlet channel, a gas inlet channel, a gas outlet channel and a gas outlet channel, the conductive nail penetrates through the heating end of the atomization bottom cover and extends below the inner end of the air outlet channel; the oil guide channels are symmetrically arranged on the two sides of the conductive nail; each oil guide channel is mounted on the atomization top cover and is arranged between the oil storage bin and the conductive nail; each atomizing core is arranged at the oil outlet end of the corresponding oil guide channel, and the included angle between the pair of atomizing cores is of a reducing structure from bottom to top; the air guide hole is formed in the atomization bottom cover and located between the pair of atomization cores. Compared with the prior art, the utility model has the beneficial effects that by improving the layout of the conductive nail, the oil guide channel and the atomizing core, the gas path flow is smoother, the formed gas mist is fuller, and better suction experience is provided for users.

The invention provides a dual-channel high-power femtosecond laser deciduous tooth selective ablation system, and relates to the field of solid ultrafast laser. Comprising a laser transmitter, a power output unit and an optical fiber clamp, the power output unit comprises a primary output module and a secondary output module, and the primary output module and the secondary output module are respectively connected with the optical fiber clamp. Through the dual-wavelength laser output system, 1 [mu] m near-infrared femtosecond laser and 6.1 [mu] m and 9.5 [mu] m intermediate-infrared tunable femtosecond laser can be output at the same time, meanwhile, a groove is further formed in the optical fiber clamp, reagents such as a decayed tooth display agent can be stored, the needed reagents can be directly and synchronously injected to a target part, and more convenient and accurate ablation experience is achieved.

The invention provides a multi-stage screening type water cooling ash cooling barrel, and relates to the technical field of ash cooling barrels, a connecting rod is rotatably mounted in a first mounting plate, a first gear is fixedly mounted on the side wall of the connecting rod, a second gear is located at the bottom of the first gear, the first gear and the second gear are mounted in an engaged manner, and a cooling barrel body is fixedly mounted in the second gear. The cooling cylinder body is located on the outer side of the spiral body, the first synchronous belt transmission assembly drives the connecting rod to rotate clockwise, the connecting rod drives the first gear to rotate clockwise, the first gear drives the second gear to rotate anticlockwise, the second gear drives the cooling cylinder body to rotate anticlockwise, and the spiral body rotates clockwise and the cooling cylinder body rotates anticlockwise. The aluminum ash is effectively pushed to advance, the aluminum ash is prevented from being accumulated or blocked in the cooling cylinder body, conveying is more uniform and stable, the probability that the aluminum ash makes contact with the inner wall of the cooling cylinder body is increased, and therefore the cooling efficiency and effect are improved.

The invention relates to the technical field of lightning protection grounding, in particular to a manufacturing technology of a lightning protection grounding device of a novel electric contact material, and discloses a grounding device of a flexible graphite lightning protection grounding body. The lightning protection device further comprises a positioning sleeve frame used for positioning and guiding, a lightning protection frame part used for lightning receiving and power transmission, a grounding insertion pile used for grounding and current diffusion, and an auxiliary pile pressing part used for assisting installation of the grounding insertion pile, and a flexible graphite lightning protection connection wire is adopted as a core conduction component, and a graphite column is adopted as a core grounding component. The problems of grounding resistance increase and function failure caused by corrosion of a traditional metal grounding electrode are avoided, and frequent maintenance and replacement are not needed. The flexible graphite lightning protection connecting wire is good in flexibility, not prone to breakage, capable of meeting wiring requirements of different installation scenes, convenient and fast to install, capable of saving labor and accurate in positioning, labor-saving pressing-in of the grounding inserting pile is achieved through structures such as a pedal frame and a pull-down chuck piece of the auxiliary pile pressing part, manual hammering or large machines are not needed, and operation is convenient and fast.

The utility model provides a spliced door butt jointer, which comprises a first guide rail installed on the top of a shutter leaf, a second guide rail fixed on the top of a door frame, a movable butt joint seat installed at the end of the first guide rail, a fixed butt joint seat installed at the end of the second guide rail, the movable butt joint seat and the fixed butt joint seat being mutually butted when the shutter leaf is closed, so that the first guide rail and the second guide rail are in communication, a locking block arranged in the movable butt joint seat, the locking block being linked to a linkage seat arranged on the door frame through a linkage mechanism, the linkage seat driving the linkage mechanism to make the locking block disengage from the first guide rail when the shutter leaf is closed, the linkage seat being separated from the linkage mechanism when the shutter leaf is opened, the locking block being inserted into the first guide rail to limit the sliding of a pulley set. The utility model completely solves the problem that the traditional flat door can only be opened by half, limits the entry and exit of articles, and provides a large-size operation space and an unobstructed view for the user.

The utility model discloses a magnetic drive pump support which comprises a connecting support and a sleeve shell, a plurality of supporting strips are fixedly connected to the surface of the connecting support, a plurality of circulation holes are formed in the surfaces of the supporting strips, the sleeve shell is connected to the surface of the connecting support in a sleeved mode, and the sleeve shell is fixedly connected with the supporting strips. A flowing channel is formed among the sleeve shell, the supporting strip and the connecting support, a discharging connector and a flowing-in connector are installed on the upper surface and the lower surface of the sleeve shell respectively and communicate with the flowing channel, and a space is reserved for flowing of media through the flowing channel between the sleeve shell and the connecting support. A flowing medium exchanges heat with the connecting support, so that heat of the outer magnetic rotor and the inner rotor is smoothly conducted out, the working temperature of the outer magnetic rotor and the working temperature of the inner rotor are reduced, the stability of connection between the sleeve shell and the connecting support is improved through the supporting strips, and the medium can smoothly flow through the circulation holes formed in the supporting strips.

This utility model relates to the field of valve technology, and in particular to a bidirectional valve and an explosion-proof valve. The bidirectional valve provided by this utility model includes a housing and a fixed base fixedly connected to one end of the housing. The inner wall of the housing and the housing together form a ventilation channel. A first through hole is provided on the fixed base, and a second through hole is provided on the housing corresponding to the first through hole. A flexible member abuts against the first through hole, and a first deformation space is provided between the flexible member and the second through hole. At least three sets of slits are evenly distributed circumferentially on the flexible member, and the slits are spaced apart from the first through hole in the radial direction of the bidirectional valve. The first through hole and the second through hole are correspondingly arranged. The flexible member is disposed between the first through hole and the second through hole, and the abutment between the flexible member and the first through hole forms an initial seal to prevent misflow when there is no pressure difference. Compared with complex bidirectional valves with many components, this eliminates components such as valve cores and springs, reduces assembly steps and potential failure points, and improves overall stability.

The utility model relates to the related technical field of lightning arresters, and one embodiment of the utility model provides an explosion-proof lightning arrester which comprises a pair of electrodes and a plurality of resistor discs, the resistor discs are arranged between the electrodes, an outer protection assembly is arranged outside the pair of electrodes, and a supporting conduction assembly is arranged between the electrodes and the resistor discs. The connecting assembly is arranged outside the electrodes, the outer protection assembly comprises an inner insulation sleeve, the inner insulation sleeve wraps the pair of electrodes, a first clamping groove is formed in the periphery of the side surface of each electrode, the inner insulation sleeve is inserted into the first clamping groove, and a plurality of reinforcing rods are arranged in the inner insulation sleeve. According to the technical scheme, the technical problems that in the prior art, the lightning arrester does not have the anti-explosion characteristic, electric sparks, high temperature and the like are possibly generated in the lightning energy releasing process of the lightning arrester once lightning stroke occurs, and combustion or explosion of flammable and explosive substances is extremely easily caused are solved.

The utility model discloses a kind of quick paper feeding devices of paper folding machine, belong to paper folding machine technical field.A kind of quick paper feeding devices of paper folding machine, including the top fixed installation of rack belt conveyor, paper feeding roller is installed on rack, further include: at least two baffle, setting on rack, first adjusting part is equipped on belt conveyor, first adjusting part is used to drive two baffle to be mutually close and away;At least two guide plates are arranged in the middle part of rack, and the bottom end of guide plate is arc design;The utility model can flexibly adjust the support position of cushion block by rotating hand wheel, and change the friction between paper and belt conveyor conveyor belt, and then the suitable friction required by different types of paper can be flexibly set, so that the device can stably, reliably transmit various types of paper, greatly reduce the probability of occurrence of double paper feeding or empty paper condition, help to improve the continuity and stability of paper feeding.

This application discloses an integrated servo motor, belonging to the field of servo motor technology. It includes a drive box and a motor body. The motor body is fitted with a heat sink base. The drive box is mounted on the top surface of the heat sink base. Thermal grease is partially applied to the bottom surface of the drive box, connecting the drive box and the heat sink base. The drive box includes a housing and a control device. The housing has a rectangular parallelepiped structure, and a cavity for mounting the control device is formed inside. The housing is made of die-cast aluminum. This application optimizes the heat dissipation design and structural layout, effectively improving the heat dissipation performance of the integrated servo motor.