28results about How to "Enhanced radiation" patented technology

The invention provides a voltage regulation device based on a two-stage DC-DC circuit. The voltage regulation device comprises a voltage acquisition module, a current acquisition module, a controller, a first-stage DC-DC converter, a second-stage DC-DC converter, a first driving circuit and a second driving circuit, the controller is used for receiving a voltage value and a current value acquired by the voltage acquisition module and the current acquisition module, and respectively sending control instructions to the first-stage DC-DC converter and the second-stage DC-DC converter through the first driving circuit and the second driving circuit to adjust the voltage; the regulation method of the controller on the first-stage DC-DC converter is that a proper first-stage DC-DC modulation duty ratio is selected according to the calculated ideal modulation ratio; the adjusting method of the controller on the second-stage DC-DC converter is a sliding mode control algorithm. The method has the advantages that the conversion efficiency is remarkably improved, power loss and heat generation are reduced, high stability and reliability are kept, and the method is suitable for aerospace application.

The utility model discloses a miniaturized double-frequency wide-beam terminal antenna, which relates to the technical field of mobile terminal antennas and comprises an antenna cap, an antenna housing, a radiator assembly, a feed network module, a radio frequency connector and an antenna base, and the radiator assembly, the feed network module and the radio frequency connector are sequentially distributed inside the antenna housing from top to bottom. According to the miniaturized double-frequency wide-beam terminal antenna, the radiation copper strip is arranged in a gradually-changed spiral form, and when the radiation copper strip is at the same rising angle, the spiral arm with the top open circuit structure has a wider beam width than the spiral arm with the short circuit structure, so that low-elevation electromagnetic signal radiation and reception of the satellite antenna are facilitated; the radiation copper strip is provided with four feeding points, each feeding point is connected with two oscillator arms with different lengths, the circular polarization characteristic and the double-frequency radiation characteristic of the antenna are guaranteed, the two oscillator arms with the same feeding guarantee different rising angles and widths, the isolation degree of double-frequency radiation is improved, the shape of a directional diagram is more regular, and higher radiation gain is achieved.

The utility model discloses a camera module base with a heat dissipation effect. The camera module base comprises a base main body, a lens main body, a sensor main body and a substrate, the sensor main body is arranged at the top of the substrate and is positioned in a cavity in the lower part of the base; the surface of the base lower portion and the surface of the base upper portion are both sprayed with heat dissipation coating, the heat dissipation coating is infrared radiation coating, and the thickness of the heat dissipation coating ranges from micrometer to micrometer. Heat dissipation holes are annularly formed in the inner wall of the base lower part at equal intervals, the surface of the base lower part and the surface of the base upper part are each coated with a layer of infrared radiation coating, so that heat transfer and radiation of the base lower part and the base upper part can be enhanced, and the purpose of rapidly cooling the interior of the base is achieved; the inner heat can be quickly transferred and emitted out through the outer surface of the base, the quick cooling effect is achieved, various defects caused by high temperature of the module are reduced, and the heat in the lower portion of the base can be quickly dissipated out through the heat dissipation holes designed in a matched mode.

This invention provides a self-decoupling intermediate frequency (IF) radiating element and a mobile communication antenna, relating to the technical field of wireless communication. The self-decoupling IF radiating element includes a radiating substrate, a dielectric block, two sets of orthogonally polarized dipoles, and four metal patches. The mobile communication antenna includes the self-decoupling IF radiating element. Each metal patch of the self-decoupling IF radiating element forms a capacitive-inductive resonant circuit with each radiating arm. This resonant circuit can add at least one high-frequency resonant point, ensuring that the electrical performance of the self-decoupling IF radiating element remains unaffected while possessing the characteristic of transmitting high-frequency electromagnetic waves. This allows electromagnetic waves generated by the high-frequency radiating element nested below the self-decoupling IF radiating element to effectively pass through, thereby generating good radiation into space. Specifically applied in mobile communication antennas, this eliminates the need for additional decoupling circuits, does not increase insertion loss, and reduces the design complexity and size of common-aperture antennas.

The utility model relates to an electric warmer self-adaptive adjusting connecting structure which comprises a lower housing and an upper cover cap, end plates are arranged at the two ends of the lower housing, a heating pipe is installed on the inner wall of the upper cover cap, the upper cover cap is connected with the lower housing in a sliding mode, one end of the upper cover cap is fixedly connected with one end plate, and the other end of the upper cover cap is fixedly connected with the other end plate. And a thermal deformation telescopic distance is formed between the other end of the upper cover cap and the other end plate. The connecting structure is favorable for reserving a thermal expansion deformation space in the length direction for the upper cover cap.

The invention relates to the technical field of kitchen appliances, in particular to uniform-heating cooking equipment which comprises an upper shell and a lower shell, a hot air circulation assembly is arranged in the upper shell, an inner container and a pot body assembly are arranged in the lower shell, and a gap is formed between the inner container and the pot body assembly to form a hot air channel. A first space communicated with the hot air duct is arranged below the pot body assembly, a second heating piece is arranged in the first space, an oil receiving disc is arranged below the second heating piece, a ventilation area is arranged at the bottom of the pot body assembly, and the second heating piece is arranged around the ventilation area so that heat generated by the second heating piece can enter the pot body assembly through the ventilation area. Grease generated by the food drops into the oil receiving disc through the ventilation area. One part of hot air generated by the hot air circulation assembly enters the pot body assembly, the other part of the hot air enters the first space through the hot air duct, heat generated by the second heating piece is driven to enter the pot body assembly through the ventilation area, and the heating uniformity of the upper surface and the lower surface of food is improved.

The invention provides an industrial fan, and belongs to the technical field of industrial fans. The industrial fan comprises a power device, the power device comprises an upstream power mechanism and a planetary gear speed reduction module, and the planetary gear speed reduction module comprises a rotating shell and a first planetary gear speed reduction mechanism; the rotating shell is used for being connected with fan blades, and a first containing cavity with a first opening in the top is formed in the rotating shell. The first planetary gear speed reducing mechanism is arranged in the first containing cavity and comprises a first center shaft, a first sun gear, a first planet carrier, a first planet gear and a first gear ring, and the first center shaft is connected with the output end of the upstream power mechanism; the first planet carrier penetrates through the first opening to be connected with the fixing part of the upstream power mechanism, the first gear ring is fixedly connected with the rotating shell, and the rotating shell is rotatably connected to the first planet carrier in a hung mode. The fan structure can be simplified, and a larger cooling space can be radiated.

The invention relates to a heat sink (10) for a lighting module of a motor vehicle, comprising at least one protruding cooling element (100) extending in an extension direction between a foot (110) and a free end (111) and having a thickness (e) in a direction transverse to the extension direction, the thickness of the protruding cooling element decreases as it extends from the foot to the free end, characterized in that the protruding cooling element comprises a first portion (101) and a second portion (102), the first portion being located between the foot and the second portion and the second portion being located between the first portion and the free end, a decrease in the thickness of the protruding cooling element in the second portion is greater than a decrease in the first portion. The invention further relates to a light-emitting module comprising the radiator.

This utility model relates to the field of lighting equipment technology, specifically to a surgical room shadowless lamp lighting device, including a shadowless lamp body. The front of the shadowless lamp body is provided with a shadowless lamp light source and a shadowless lamp cover. A first ambient light module and a first ambient light cover are provided at the center of the back of the shadowless lamp body. Multiple second ambient light modules and second ambient light covers are arranged circumferentially along the edges of the shadowless lamp body, with light-shielding elements between adjacent second ambient light modules. This utility model embeds the first and second ambient light modules on non-primary light-emitting surfaces of the shadowless lamp body, such as the back and sides, and provides corresponding diffuser covers, forming a uniform background lighting effect without direct glare, which can meet the diverse lighting needs of different personnel in the operating room.

The present invention provides an underwater in-situ detection system based on laser induced breakdown spectroscopy technology, and relates to the technical field of underwater in-situ detection systems. The underwater in-situ detection system based on laser induced breakdown spectroscopy technology comprises a base, a bracket is fixedly connected to the top of the base, a micro-air column generating module is fixedly connected to the inside of the bracket, an underwater peristaltic pump is fixedly connected to the top of the bracket, a fixing frame is fixedly connected to one side of the top of the base, and a constant pressure air bag is fixedly connected to the inside of the fixing frame. In the underwater in-situ detection system based on laser induced breakdown spectroscopy technology, the underwater peristaltic pump pumps the gas in the constant pressure air bag into the pipeline, and the air is ejected from the jet needle. At the same time, the underwater peristaltic pump pumps the clean seawater at the bottom of the constant pressure air bag into the second nozzle and the first nozzle to eject it, so as to achieve the purpose of protecting the air column.

The utility model discloses a dynamic flame and ladle body vibration type steel ladle baking system which comprises a steel ladle, a burner adjusting mechanism, a ladle body vibration mechanism and a burner, the burner adjusting mechanism is arranged at the top of the steel ladle, the ladle body vibration mechanism is arranged at the bottom of the steel ladle, and the burner is arranged in the steel ladle. According to the utility model, the burner can rotate and / or lift up and down in the steel ladle through the burner adjusting mechanism, and the generated dynamic flame can improve the thermal shock to scrap steel in each area and each depth in the steel ladle; furthermore, the steel ladle is vibrated at a constant speed through the ladle body vibration mechanism, so that the steel scrap materials in the steel ladle are relatively overturned and rolled, high-temperature flue gas generated by the burner is favorably radiated to the bottom of the lower layer of the steel ladle, the heating strength of the steel scrap at the bottommost layer is improved, and the preheating and soaking effects of the steel scrap are greatly improved compared with a traditional mode; and therefore, the problems of steel scrap condensation and non-uniform local baking of the steel ladle are solved, and the service life of the steel ladle furnace lining is prolonged.

The invention discloses an optical fiber probe and an optical fiber LIBS remote detection system and method, and relates to the technical field of laser detection, the optical fiber probe comprises a shell, and a collimating mirror, a focusing mirror and a quadric surface reflection cavity which are sequentially arranged in the shell along the laser incidence direction; the quadric surface reflection cavity comprises an upper end face and a lower end face, the lower end face is in contact with a sample, and the upper end face is in contact with the focus lens; the center of the lower end face is the focus of the focus lens, and the focus of the focus lens coincides with the first focus of the quadric surface reflection cavity. In the spectrum excitation stage, after being incident, laser is collimated by a collimating mirror and focused on the surface of a sample by a focusing mirror, plasma is excited and generated, and a quadric surface reflection cavity generates spatial constraint on the plasma; in the spectrum collection stage, radiation light generated by the plasma is directly converged and collected by the focus lens or reflected to the focus lens through the quadric surface reflection cavity to be converged and collected. According to the invention, the sensitivity of optical fiber LIBS detection is improved, and automatic focusing is realized.

The utility model belongs to the technical field of electric reactor, disclose a kind of resonant electric reactor. The resonant electric reactor includes bottom plate, and bottom plate is fixed with outer tube, and spiral coil is arranged to the inner wall of outer tube, and coil is fixed on the inner wall of outer tube by multiple positioning cards, and positioning card is strip structure, and length is greater than the spiral height of coil, and multiple limit slots suitable for coil are set in the side of coil of positioning card, and coil is contained in limit slot, and the both ends of coil are respectively connected with first terminal and second terminal by penetrating the side wall of outer tube. When using, external circuit is electrically connected with binding post. The resonant electric reactor disclosed by the utility model is compact in structure, reliable in fixation, smooth in heat dissipation path, can effectively release internal pressure, excellent in insulation performance, and high in safety.

The invention is applicable to the technical field of wireless communication, and provides a slotted cross dipole antenna loaded with an artificial magnetic conductor structure, which comprises three layers of dielectric substrates, namely a first layer of dielectric substrate, a second layer of dielectric substrate and a third layer of dielectric substrate; the two pairs of crossed dipoles are printed on the top and the bottom of the first dielectric substrate in pairs, the surfaces of the crossed dipoles are provided with slots, and each pair of crossed dipoles is connected through a microstrip line segment; the metal columns penetrate through the three layers of dielectric substrates to feed the crossed dipoles; the artificial magnetic conductor structure is printed on the top of the second-layer dielectric substrate; the low-profile broadband high-isolation dual-linear polarization microstrip antenna realizes the characteristics of low profile, broadband, high isolation and dual-linear polarization, and is suitable for the field of Internet of Things and wireless communication.

The utility model relates to an electric warmer heating pipe abnormal sound prevention fixing structure which comprises an upper cover cap, a longitudinal installation groove is formed in the inner wall of the upper cover cap in the length direction of the upper cover cap, a heating pipe is inserted in the longitudinal installation groove, and a pressing plate pressed on the lower side face of the heating pipe is arranged in the upper cover cap. The structure is helpful for compressing the heating pipe in the mounting groove, and prevents the heating pipe from generating abnormal sound in the use process.

The utility model provides a pot-type calcining furnace calcined coke cooling device which comprises a box body, a cooling mechanism is arranged in the box body, the cooling mechanism comprises a rotating shaft arranged in the middle of the interior of the box body, fan blades are arranged at the top of the rotating shaft, and a first rotating motor corresponding to the rotating shaft is arranged at the bottom of the box body. A plurality of cross rods are arranged in the middle of the interior of the box body, a coiled pipe is arranged on the cross rods jointly, a cooling box is arranged at the ends of the coiled pipe jointly, an end cover is arranged at the top of the box body, a plurality of ventilation holes are formed in the end cover, and an air blowing mechanism is arranged at the top of the end cover. According to the calcined coke cooling device for the pot-type calcining furnace, not only can materials be cooled, but also the materials can be well cooled, so that the overall using effect and the overall using efficiency of the device are improved.

The invention belongs to the technical field of communication, and particularly discloses a patch antenna based on SIW feed, which sequentially comprises a radiation patch layer, a coupling gap layer and a metal ground layer from top to bottom, and dielectric substrates or dielectric bonding plates are arranged between the radiation patch layer and the coupling gap layer and between the coupling gap layer and the metal ground layer; a coupling gap is etched in the coupling gap layer; the dielectric substrate or the dielectric bonding plate between the coupling gap layer and the metal ground layer is provided with a plurality of metalized via holes used for connecting the coupling gap layer and the metal ground layer. A plurality of metalized via holes are formed in the periphery and the middle position of the dielectric substrate or the dielectric bonding plate between the coupling gap layer and the metal ground layer, and two rows of metalized via holes are transversely formed in the middle position of the dielectric substrate or the dielectric bonding plate; and the two rows of transversely arranged metalized through holes, the coupling gap layer and the metal ground layer jointly form an SIW feed structure. The antenna provided by the invention has the characteristics of low profile and high gain at the same time.

The invention discloses a special-shaped central cone with the function of suppressing infrared radiation and strengthening mixing, including a central cone located in the inner channel of the engine, a mixing tube is provided at the tip of the central cone extending along the airflow direction, one end of the mixing tube is rotatably matched with the tip of the central cone, and a tail cone is provided at the other end, the mixing tube is spiral, so that the body-attached incoming flow of the central cone generates circumferential velocity and strengthens mixing, the windward surface area of ​​the tail cone is larger than the mixing tube, and the tail cone is used to generate reflux of the inner channel airflow, and reduce the engine wake length by strengthening mixing. The invention can effectively strengthen mixing to shorten the length of the nozzle wake, and strengthen heat dissipation, so that the temperature is reduced faster.

The utility model discloses a kind of large-volume reaction kettle suitable for high-viscosity adhesive material, including kettle body, the kettle body bottom has the convergence portion of conical shape, the convergence portion gradually increases from below to above diameter;Outer wall heating pipe A, spiral is coiled on the outer surface of the convergence portion;Inner heating pipe, the inner heating pipe has at least three, at least three inner heating pipes ring described above are arranged on the convergence portion, the inner heating pipe is the helical structure of vertical extension, the diameter of tangent circle formed by the innermost point of at least three inner heating pipes is 2 / 5~3 / 5 of kettle body inner diameter. Through the above scheme, high-viscosity material can be uniformly heated without stirring in large-volume reaction kettle, overcome the problem that traditional reaction kettle needs stirring and manufacturing cost is high.

A ray scanning device for a luggage conveying system. The device comprises a transmission apparatus, which transports an object under inspection to pass through a scanning region of the ray scanning device; and a plurality of scanning stages, which are respectively arranged on a plurality of scanning planes in the conveying direction of the object under inspection, wherein each scanning stage comprises a ray source module (10) and a detector group (30), which are arranged opposite one another, the ray source module (10) comprises a plurality of source points for emitting ray beams, and the ray source modules (10) of the plurality of scanning stages are respectively arranged on a lower portion, a left portion and a right portion of the scanning region.

The invention discloses a steam cooking utensil capable of heating uniformly, a cooking cavity and a water tank are arranged in the steam cooking utensil, a heating piece used for heating water to generate steam or heating steam is convexly arranged in the water tank, and the heating piece comprises a heat transfer part and a heating part arranged in the heat transfer part; a plurality of independent heat transfer convection grooves extending in the vertical direction are formed in the surface of the heat transfer part, steam is gathered at the top end of the heat transfer part through the independent heat transfer convection grooves and enters the cooking cavity, and the width of the groove bottom of each heat transfer convection groove in the circumferential direction of the heating piece is smaller than that of a groove opening in the circumferential direction of the heating piece. According to the invention, the heat transfer convection groove is specially designed, so that the heating element has good uniformity when heating water or steam, and the application range and universality of the heating element are improved.

This utility model discloses a high-efficiency burner, comprising: a burner head, with an internally interconnected ejector channel and a mixing chamber, an opening on the top side of the burner head corresponding to the position of the mixing chamber, and a fixing sleeve on the bottom side of the burner head corresponding to the position of the opening; a flame spreader cover, the bottom of which passes through the opening and is connected to the fixing sleeve, with an outlet gap formed between the flame spreader cover and the top side of the burner head; a flow divider plate, located within the opening, extending around the fixing sleeve, and having multiple first through holes; and a flow divider sleeve, located within the outlet gap, having multiple second through holes. This utility model utilizes the flow divider plate and flow divider sleeve to block the combustion gas and air, preventing the combustion gas and air from being directly discharged from the outlet gap, improving the mixing effect of the final exhaust gas, thereby improving combustion efficiency.

The utility model discloses an environmental radiation monitoring verification support, which comprises a supporting assembly, a movable plate, universal self-locking wheels, a positioning shell, positioning nails, a protective shell, a storage piece and a storage shell, and the universal self-locking wheels are arranged at the bottom of the movable plate. The beneficial effects of the utility model are that the whole equipment is moved to a proper position through the universal self-locking wheels, then the positioning nail is inserted into the positioning shell, so that the positioning nail is inserted into the ground to position the whole equipment, and the monitoring equipment body can be conveniently stored through the storage piece when the monitoring equipment body is not used, so that the monitoring equipment body is convenient to use. The monitoring equipment body is prevented from being affected by the environment, so that the monitoring equipment is aged, and the service life of the monitoring equipment is shortened, the monitoring equipment body can be conveniently and rapidly disassembled or assembled through the installation part when the monitoring equipment body needs to be disassembled, maintained or replaced, and radiation in the environment can be conveniently monitored through the monitoring part.

The invention relates to the technical field of vacuum circuit breakers, in particular to a conductive clamp, a primary conductive loop of a vacuum circuit breaker and the vacuum circuit breaker. The conductive clamp comprises an annular conductive clamp body with an opening, an inner hole of the conductive clamp body forms a clamping opening used for being assembled to a conductive rod, connecting ends are arranged on the periphery of the conductive clamp body at intervals, the connecting ends form a fin type heat dissipation structure on the periphery of the conductive clamp body, one face of each connecting end is a connecting face used for being connected with a flexible connector, and the other face of each connecting end is a connecting face used for being connected with a flexible connector. And other side surfaces are radiating surfaces. The connecting ends arranged at the periphery of the conductive clamp at intervals not only provide a multi-channel circulation path for current, but also utilize the interval areas as heat dissipation channels, thereby effectively reducing heat accumulation, and accelerating conduction and radiation of heat to the outside, thereby obviously reducing the temperature of the conductive clamp and the soft connection part, and improving the reliability of the conductive clamp. And the thermal stability and the safety of the whole conductive system are improved.

The invention relates to the technical field of biological materials, in particular to bone cement with a fluorescence imaging function and application. The invention provides application of aggregation-induced emission functionalized mesoporous nanoparticles in non-diagnostic bone cement fluorescence imaging. The AIE functionalized mesoporous silica material integrates the dual advantages of a porous structure and an AIE fluorophore. When the X-ray imaging probe is applied to bone cement, the condition of the bone cement at an operation part can be observed in a fluorescence imaging manner, so that the radiation problem caused by X-ray imaging is solved. Meanwhile, the problem of poor biocompatibility of a traditional inorganic salt compound is improved by adding the AIE functionalized mesoporous silica.

The embodiment of the invention relates to the technical field of antennas, and discloses an antenna array and communication equipment, and the antenna array comprises a substrate, a first metal plate, a first sub-antenna, a second sub-antenna and a second metal plate. The first sub-antenna is arranged on the first metal plate in a clearance manner, the first sub-antenna comprises a first radiation element, a first antenna unit, a second antenna unit and a first feed part, the first radiation element covers the first antenna unit, and the second antenna unit is arranged on the second surface; the second sub-antenna comprises a second radiation element, a third antenna unit, a fourth antenna unit and a second feed part, the second radiation element covers the third antenna unit, and the fourth antenna unit is arranged on the second surface; according to the antenna array, the second metal plate is arranged on the second surface, so that the coverage requirements of the antenna array on different frequency bands can be met.

The invention relates to the field of UV edge exposure, in particular to a UV LED edge exposure lamp and a multi-channel UV LED edge exposure assembly. The UV LED edge exposure lamp comprises a UV LED lamp bead, a light guide element and a focusing lens; wherein the light guide element is in a prismatic table shape, the small end face of the light guide element is an incident face, the large end face of the light guide element is an emergent face, the incident face right faces the UV LED lamp beads, and the emergent face right faces the focusing lens; the light guide element is used for dodging light emitted by the UV LED lamp beads; the focusing lens is used for focusing the light emitted by the light guide element, and the focusing surface of the focusing lens is used as an exposure area. The UV LED edge exposure lamp disclosed by the invention has the advantages of high energy density, high uniformity, high parallelism, capability of realizing multiple channels through splicing, compact structure and high flexibility, and is suitable for edge exposure of areas with different sizes.

The present invention provides a radio frequency antenna arrangement structure and a host housing and a host device using the structure. The arrangement structure of the radio frequency antenna includes: a chamfered accommodation space located at a certain edge of the metal shell and recessed toward the inside of the metal shell; the bottom surface of the chamfered accommodation space is a chamfered slope arranged along the length direction of the edge, and the chamfered slope is used to install the base of the radio frequency antenna; the width of the chamfered slope is set to: on the basis of ensuring that the radio frequency antenna does not exceed the outer boundary of the chamfered accommodation space, it can just ensure the installation of the base. The application of the radio frequency antenna arrangement structure of the present invention can obtain a larger clearance (nearly 270 degrees), which is convenient for the radio frequency antenna to radiate or receive signals to a wider area, and the functional performance of the radio frequency communication can be enhanced without expanding the boundary space of the metal shell host.