149results about How to "Avoid fever" patented technology

The embodiment of the invention provides a differential Hall current sensor and a manufacturing method thereof, and belongs to the technical field of semiconductors. The differential Hall current sensor comprises a current bar; the insulating layer is bonded on the upper surface of the current bar; the at least two Hall elements are symmetrically arranged on the two sides of the upper surface of the insulating layer in the current direction; and the at least one deflection magnetism gathering block is attached to the magnetic induction surfaces of the at least two Hall elements and is used for deflecting a magnetic field component of the current magnetic field in the direction parallel to the magnetic induction surfaces of the Hall elements into a magnetic field component in the direction perpendicular to the magnetic induction surfaces of the Hall elements. According to the differential Hall current sensor, the current magnetic field is gathered through the deflection magnetism gathering block to form a conduction magnetic circuit, the directions of the magnetic field components are changed, the Hall element obtains the magnetic field intensity formed by superposing the magnetic field components in the two directions, and the measurement sensitivity is improved.

The utility model relates to an automatic feeding medicinal material pulverizer, and belongs to the technical field of traditional Chinese medicinal material processing. The feeding pipeline is in butt joint with a feeding port of the smashing device, a discharging port of the smashing device is connected with an air inlet of the powder collecting device, and an air outlet of the powder collecting device is connected with the induced draft fan. The front end of the feeding pipeline extends to the position below the discharging device. The crushing device is prevented from being filled with a large amount of medicinal materials, and the medicinal materials are prevented from being ground in the crushing device for a long time; meanwhile, air flow is formed through an induced draft fan for feeding, the air flow path is consistent with the medicinal material path, the materials can move towards the finer tail end easily, grinding is promoted, meanwhile, the air flow can take away ground medicinal material powder in time, the medicinal materials are prevented from being ground in the smashing device for a long time, the phenomenon that the medicinal materials are heated due to excessive grinding can be avoided, and the medicinal material quality is guaranteed; negative pressure is formed in the smashing device, the smashing device is relatively closed, medicinal material powder can be effectively prevented from overflowing, dust raising is avoided, production environment sanitation is guaranteed, and cleaning burden is reduced.

The invention discloses grain quality management and detection equipment for humidity detection for grain storage, and relates to the technical field of humidity detection, the grain quality management and detection equipment for humidity detection for grain storage comprises a machine body, and also comprises a material turning device, a dehumidification device and a moisture-proof device; wherein the material turning device comprises a detection device, a motor, a transmission shaft, a first rotating plate, a first rotating rod, a circular ring, a long rod, a supporting rod, a first sliding block, a reciprocating lead screw, a first belt, a support, a vertical rod and a second rotating plate, the detection device is fixedly connected to the top of the interior of the machine body, the motor is fixedly connected to the left side of the machine body, and the transmission shaft is fixedly connected to the output end of the motor; according to the grain quality management detection equipment for humidity detection in grain storage, when the first rotating plate rotates, the first rotating plate can turn over grains on the lower half portion in the machine body upwards, and the grains on the lower half portion of the machine body can be effectively prevented from being in a humid state for a long time.

The invention relates to the technical field of electrical cabinets, and discloses an electromagnetic shielding electrical cabinet with an eddy current prevention function, which comprises a cabinet body, a cabinet door is hinged to the front side surface of the cabinet body, a mounting plate is fixedly connected to the rear side surface of the inner wall of the cabinet body, and a mounting frame is fixedly connected to the front side surface of the mounting plate. According to the invention, each wire or a strand of wires is separated by the wire clamping shell, so that the wires are prevented from being wound together, electromagnetic induction generated by magnetic field overlapping is avoided, the wires are prevented from being heated by eddy current, the safety of the wires is improved, the service life of the wires is prolonged, and the wires are bent after the abutting rods abut against the wires. According to the invention, the long part of the electric wire is tightened, the long electric wire is prevented from being wound together, the applicability of the device is improved, the abutting rod is kept stable, the fixing effect of the abutting rod on the electric wire is improved, and the detection probe monitors the loosening and winding conditions of the electric wire in the moving process.

The utility model relates to the technical field of power electronics, and discloses an overcurrent protection circuit and a power supply circuit, the overcurrent protection circuit comprises a voltage sampling circuit, a current sampling circuit, a voltage threshold determination circuit and a current threshold determination circuit, the second input end inputs reference voltage, and the output end is connected with the first input end of the current threshold judgment circuit; the second input end of the current threshold judgment circuit inputs the output current of the to-be-protected equipment, and the output end of the current threshold judgment circuit is connected with the control end of the to-be-protected equipment; when the voltage threshold judgment circuit judges that the bus voltage is smaller than or larger than the reference voltage, the absolute value of an overcurrent protection point in the current threshold judgment circuit is a first current value or a second current value, and the first current value is larger than the second current value. According to the utility model, when the bus voltage is higher than a threshold value, an over-current protection point is lowered, so that the device stress and turn-off loss of equipment to be protected are reduced.

The utility model provides an LED drive circuit with a night lamp function. The LED drive circuit comprises a compatible dimming chip, a constant current chip, a switching module, a main light source module and an auxiliary light source module. The power supply input end of the compatible dimming chip is used for being connected with an external power supply; the high-voltage end of the compatible dimming chip is connected with the high-voltage end of the constant-current chip and the power input end of the switching module. The compatible dimming chip is used for compensating the bleeder current according to the type of the accessed dimmer; the first output end of the switching module is connected with the main light source module; the second output end of the switching module is connected with the auxiliary light source module. The signal input end of the switching module is connected with an external power supply, generates a switching signal based on the switching state of the external power supply, and switches the main light source module or the auxiliary light source module according to the switching signal; therefore, the loss of a single chip is reduced, and the chip is effectively prevented from heating due to excessive loss.

The present invention relates to the technical field of monitoring equipment, and discloses an information-based remote building intelligent monitoring device, including a supporting mechanism and a monitoring device, wherein the supporting mechanism includes a first fixed frame, an inner wall of the first fixed frame is fixedly connected to a first drive motor, an output end of the first drive motor is fixedly connected to a first fixed block, an inner wall of the first fixed block is fixedly connected to a dual-axis motor, the output end of the dual-axis motor passes through the first fixed block and is fixedly connected to a rotating frame, an inner wall of the rotating frame at one end away from the dual-axis motor is fixedly connected to a hydraulic rod, when remote control monitoring is required, the rotation angle of the monitoring device can be adjusted by the adjusting mechanism, and the height and tilt angle of the monitoring device can be adjusted by the supporting mechanism, thereby reducing the area of ​​blind spots in monitoring, improving the comprehensive and efficient monitoring effect of the building, and reducing the possibility of safety hazards.

The wire outlet structure comprises an oil tank, a first mounting plate, a first sealing piece and a connecting piece, the tank wall of the oil tank is made of an insulating material, a first mounting hole and a first connecting hole are formed in the tank wall of the oil tank, and the first mounting hole is a through hole; the first mounting plate is attached to the inner wall or the outer wall of the oil tank and is provided with a second mounting hole and a second connecting hole, and the second mounting hole is a through hole; the first sealing piece is pressed between the first mounting plate and the tank wall of the oil tank; the conducting bar penetrates through the first mounting hole and the second mounting hole, and two ends of the conducting bar are respectively arranged inside and outside the oil tank; the connecting piece is matched with the first connecting hole and the second connecting hole so as to press the first sealing piece; the oil tank of the wire outlet structure is made of insulating materials, stray loss cannot be generated, heating cannot be generated, and therefore the size of the oil tank can be effectively reduced; and meanwhile, sealing connection between the first mounting plate and the oil tank is achieved through the arrangement of the first sealing piece and the connecting piece.

The automatic cleaning device of the transformer cooler comprises the transformer cooler, a supporting frame is arranged outside the transformer cooler, a washing driving mechanism is installed on one side of the top of the supporting frame, a driving piece is installed on the washing driving mechanism, and the driving piece is driven by the washing driving mechanism to horizontally move on the supporting frame; compared with the prior art, the supporting frame, the flushing driving mechanism, the driving piece, the flushing pipe and the spraying head are installed above the transformer cooler, the surface of the transformer cooler can be well flushed, dirt on the surface of the transformer cooler can be effectively removed, the load increase of a cooling fan is reduced, and the service life of the transformer cooler is prolonged. According to the method, function loss of the cooler is prevented, the problems of cooling fan control loop line heating and overload tripping are avoided, meanwhile, manual cleaning operation is not needed, the cleaning efficiency is improved, and safety risks caused by manual cleaning can also be avoided.

The utility model relates to the plug power line field, and discloses an anti-overload plug power line comprising a plug, the bottom end of the plug is provided with a live wire pin 2, the bottom end of the plug is provided with a protector, the bottom end of the protector is fixedly provided with a connecting seat, and the inner wall of the connecting seat is provided with a protection assembly. The protection assembly comprises a first live wire contact pin, the first live wire contact pin is fixedly connected to the bottom end of the connecting base, a connecting sleeve is slidably connected to the outer wall of the top end of the first live wire contact pin, and a sliding plate is fixedly connected to the left side of the connecting sleeve. According to the utility model, when overload is detected through the protector, the electromagnet is started to generate a magnetic field, and the iron sheet is attracted to drive the connecting sleeve to move, so that the connecting sleeve slides out of the second live wire pin to release the connection between the second live wire pin and the first live wire pin, and the connection between the plug and the plugboard can be disconnected; and heating and insulation aging of the power line caused by long-time overload operation are prevented, so that the safety in use is improved.

The utility model discloses a hydroelectric generator which comprises a shell and a base installed below the shell, and an impeller is arranged in the base. A limiting piece is arranged in the middle of the base, and the impeller is prevented from moving downwards through the limiting piece. And the limiting piece and a central shaft of the impeller are concentrically arranged. The limiting piece prevents the impeller from moving downwards through an arranged rolling piece. A containing groove used for containing the rolling piece is further formed in the middle of the limiting piece. And the rolling piece is spherical. In conclusion, due to the fact that the limiting piece is arranged on the base, the impeller is prevented from excessively moving downwards through the limiting piece, and the problems that due to the fact that the impeller drives the motor shaft to excessively move downwards, friction resistance is increased when the rotor rotates, the phenomenon of heating occurs when a generator works, and the rotating speed of the impeller is reduced due to increase of resistance are solved.

The invention discloses an intelligent circuit breaker with a compact structure, and relates to the technical field of circuit breakers, the intelligent circuit breaker comprises a body mechanism, the body mechanism comprises a shell, the inner wall of the shell is fixedly provided with a bimetallic strip, an arc extinguish chamber, two circuit connectors, an electromagnetic coil and a control handle, and the interior of the shell is in threaded connection with two fixing bolts. The ends, close to the arc extinguish chamber, of the two fixing bolts penetrate into the circuit connectors, the interiors of the two circuit connectors are slidably connected with fixing plates, the front faces of the two fixing plates make contact with the ends, close to the fixing plates, of the fixing bolts, and a processing mechanism is arranged on the outer surface of the shell. The processing mechanism comprises a polishing unit, the polishing unit is located on the surface of the shell, the polishing unit is used for polishing and removing an oxide layer on the circuit connector, according to the intelligent circuit breaker with the compact structure, by arranging the polishing unit, heating of the circuit breaker caused by increase of contact resistance is avoided, and good contact between the circuit and the circuit breaker is kept.

This utility model relates to a staged melting battery connector for electrically connecting a battery cell and a cover plate. It includes a connector body made of conductive metal and at least one intermediate connecting segment. The connector body includes a first conductive portion, a second conductive portion, and an intermediate conductive portion connecting the first and second conductive portions. Each intermediate connecting segment is disposed between the first and second conductive portions, and both ends of each intermediate connecting segment are electrically connected to the first and second conductive portions, respectively. The cross-sectional areas of each intermediate connecting segment are unequal and all smaller than the cross-sectional area of ​​the intermediate conductive portion. The battery connector of this application has a high current-carrying capacity at normal operating temperature and effectively avoids additional heat generation caused by an excessively small current-carrying area. In the event of overcurrent due to faults such as short circuits, the intermediate connecting segments are melted sequentially until the intermediate conductive portion melts, while the overall melting speed still meets the requirement for rapid melting, improving equipment operating safety.

The utility model discloses an airless portable spray gun, which solves the problem that the spraying effect is influenced by the movement frequency of a piston in the existing airless portable spray gun. The airless portable spray gun comprises a machine shell, a liquid pot, a nozzle, a pump body, a driving mechanism and a liquid outlet valve, the nozzle is arranged at the front end of the machine shell, the pump body comprises a pump cavity, the liquid inlet end of the pump cavity is communicated with the liquid pot, and the liquid outlet end of the pump cavity is communicated with the liquid outlet valve through a first check valve. The liquid outlet valve comprises a valve body with a buffering cavity, a valve seat, a valve head and a spring, the valve seat, the valve head and the spring are arranged in the valve body, a liquid outlet hole communicated with the nozzle is formed in the valve seat, the spring acts on the valve body to close the liquid outlet hole, and the pump body extracts liquid from the liquid pot and presses the liquid into the buffering cavity. And after the pressure of the valve head in the buffer cavity exceeds the preset liquid outlet pressure, the valve head is opened, so that liquid in the buffer cavity is sprayed out of the nozzle through the liquid outlet hole.

The invention provides a thermoelectric conversion device, a preparation method thereof and a heat radiation system. The thermoelectric conversion device comprises a thermal radiation emitter, a monocrystalline silicon substrate and a photovoltaic cell, wherein a sub-wavelength gap spacing distance is formed between the first side surface of the monocrystalline silicon substrate and the thermal radiation emitter; the photovoltaic cell is connected to a second side surface opposite to the first side surface of the monocrystalline silicon substrate. The thermal radiation emitter and the photovoltaic cell are integrated on the two sides of the monocrystalline silicon substrate, and the monocrystalline silicon substrate can completely inhibit sub-band gap thermal radiation transmission caused by surface modes such as surface phonons and polarons of the photovoltaic cell, so that unnecessary thermal transmission or thermal radiation is reduced or prevented, unnecessary heating of the photovoltaic cell is avoided, and the service life of the photovoltaic cell is prolonged. The thermoelectric conversion efficiency is improved; and meanwhile, the distance between the thermal radiation emitter and the monocrystalline silicon substrate is set as a sub-wavelength gap, so that the transmission efficiency of thermal radiation is greatly improved.

This utility model relates to the field of medical devices, and more particularly to an MRI-compatible implantable electrode lead and implantable medical device. The implantable electrode lead includes: a conductive core, which may be single-core or multi-core; an insulating layer covering the conductive core; and a shielding layer covering or embedded within the insulating layer. The shielding layer has a mesh structure and is braided from conductive wires with curved sections. This utility model provides a mesh shielding layer made of a biocompatible, electrically conductive material outside the implantable electrode lead. This shielding layer can shield magnetic fields to prevent the internally protected conductive core from overheating, thereby ensuring the safety of the implantable electrode lead during MRI scanning. Furthermore, the shielding layer has a certain degree of elasticity to accommodate the elastic conductor core.

The invention provides a target object rendering method and device, computer equipment and a readable storage medium, and relates to the field of image processing. The method comprises the steps of obtaining target object attributes of a to-be-rendered target object; determining a rendering mode of the to-be-rendered target object according to the target object attribute of the to-be-rendered target object; rendering the target object to be rendered based on the rendering mode; wherein the rendering mode comprises a first rendering mode based on an image illumination technology or a second rendering mode based on a pre-stored spherical harmonic parameter. According to the embodiment of the invention, for the target object which samples the sky Cubemap as IBL illumination, based on the attribute of the target object, IBL illumination is determined to be used for rendering, or illumination obtained by calculating the spherical harmonic parameters of the sky is used for replacing Cubemap sampling for rendering, so that the performance of IBL illumination is improved while the rendering effect is ensured as far as possible; and extra consumption of bandwidth and heating of equipment are avoided.

This invention discloses a transformer lead fixing device with deformation self-compensation function, relating to the field of transformer technology. The invention includes a fixing plate fixed to the transformer housing, a lead fixing component, a deformation self-compensation mechanism, and a pin mechanism. The deformation self-compensation mechanism includes a clamping component fixed to the end of the lead and multiple stops disposed on the fixing plate. The clamping component has a multi-segmented bent elastic structure, and the stops have inclined abutment surfaces. The pin mechanism adjustably mounts the lead fixing component to the fixing plate. When the lead fixing component is driven to move closer to the transformer housing, the clamping component and the inclined abutment surfaces of the stops abut against each other, generating elastic deformation and achieving electrical contact between the clamping component and the terminal block. This invention, through the multi-segmented bent elastic structure of the clamping component and the unidirectional displacement adjustment of the pin mechanism, achieves adaptive compensation for deformation caused by thermal expansion and contraction and vibration, ensuring long-term stable electrical contact between the terminal block and the lead, and facilitating subsequent maintenance and adjustment.

The utility model relates to a rotor punching sheet of a permanent magnet direct drive motor and the permanent magnet direct drive motor thereof, comprising a plurality of bodies which are connected end to end to form the rotor punching sheet; the magnetic steel grooves are formed in the radial direction of the body; magnetic isolation protrusions are arranged on the two side walls of the magnetic steel groove in a protruding mode. The top of each magnetic steel groove is provided with a magnetic isolation bridge. A plurality of bodies can be spliced to form an annular punching sheet, a magnetic steel is embedded in a magnetic steel groove of each body, the magnetic steel is limited between a magnetic isolation protrusion and a magnetic isolation bridge, the magnetic steel is installed in the magnetic steel groove, an empty groove is formed in the bottom of the magnetic steel, the empty groove plays a magnetic isolation role, and magnetic leakage of a magnetic attraction line is also avoided; and the magnetic isolation bridge also plays a magnetic isolation role and can shield harmonic waves, so that heating of the magnetic steel is avoided, and installation of the magnetic steel is realized.

The utility model discloses a fling-cut switch driving circuit applied to large-current short-network compensation of a submerged arc furnace, which is provided with a power supply circuit, a trigger control circuit, a zero-crossing comparator circuit, a D latch circuit, a contactor output control circuit, an N555 timer circuit, a triode amplifying circuit and a forward and reverse thyristor driving circuit. According to the utility model, a control signal can be output to the contactor while no impact inrush current is ensured when a capacitor is input during zero-crossing triggering of the thyristor, so that the function of long-time current conduction is completed by the contactor, zero-crossing is input, huge heating and loss generated during operation of the thyristor are avoided, the contactor does not generate arc discharge, and the service life of the contactor is prolonged. And the service life is prolonged from electrical service life to mechanical service life, so that maintenance-free, safe and stable operation of short network compensation products in the submerged arc furnace industry in the whole life cycle is realized.

The utility model discloses an asymmetric cooperative control three-phase balance motor soft starter, comprising a three-phase AC power supply input end, a power adjusting unit, an output end connected to a three-phase asynchronous motor, and a main controller which are connected in sequence. The power adjusting unit comprises an A-phase control module which is internally provided with a first thyristor at least controlled by a main controller; the B-phase control module is internally provided with a pair of antiparallel second thyristors controlled by the main controller; and the C-phase control module is internally provided with a pair of third thyristors which are controlled by the main controller and are reversely connected in parallel. The main controller cooperatively controls the conduction angles of the first thyristor, the second thyristor pair and the third thyristor pair in the starting process of the motor by outputting a control signal so as to adjust the voltage applied to the motor and improve the balance of the three-phase output voltage. According to the utility model, the three phases are controlled, so that the three-phase balance during starting is effectively improved, and the vibration and noise of the motor are reduced.

This invention discloses an automatic switching system, method, and drive circuit for an uninterruptible power supply (UPS) in the field of power electronics. It includes a power module for providing electrical energy to the system; a relay switch unit for controlling the switching of mains power input; an accelerated turn-off unit for accelerating the turn-off of the relay switch unit; a circuit switching unit for switching a high-current drive circuit to a low-current drive circuit after a predetermined delay; and a control module for outputting a high-level signal to control the circuit switching unit to switch the high-current drive circuit to accelerate the closing of the relay switch unit, and outputting a low-level signal to control the accelerated turn-off unit to accelerate the turn-off of the relay switch unit. This invention employs a delayed switching drive design and an accelerated turn-off unit, which significantly simplifies the power supply hardware design, reduces the power requirements of the auxiliary power module, and significantly shortens the relay turn-off time, ensuring the stability and reliability of the UPS during the switching process.

This utility model discloses an uninterruptible power supply circuit and system for multiple frequency converters sharing a battery pack, belonging to the field of frequency converter power supply technology. The uninterruptible power supply circuit for multiple frequency converters sharing a battery pack includes an AC power supply bus, a battery pack, and multiple frequency converter power supply branches; each branch is equipped with an independent three-phase rectifier bridge, a positive isolation diode, and a negative isolation diode. The three-phase rectifier bridge rectifies the AC power to supply power to the frequency converter; the positive and negative isolation diodes are connected in series between the battery pack and the branch input terminal, utilizing their unidirectional conductivity to achieve nanosecond-level zero-switching between AC power supply and battery pack power supply, without the need for a controller; multiple branches share a single battery pack, and the independent rectifier bridge and double-ended isolation diodes eliminate circulating current paths from the hardware topology. This utility model combines the beneficial effects of zero-switching anti-power fluctuation, cost reduction and efficiency improvement through multiple units sharing a battery pack, and enhanced safety by suppressing circulating current.

A core main body (5) of a reactor (6) includes an outer peripheral iron core (20), at least three iron cores (41-44), and at least three coils (51-54). Gaps (101-104) capable of being magnetically connected are formed between two adjacent iron cores. The reactor includes a vibration suppression part (90) to which at least three iron cores are fixed. The vibration suppression part comprises two fixing plates (91, 92) and a rod-shaped component (95) which fastens the two fixing plates to each other, and at least three notches (61-64) which extend from the edge of the fixing plate to the center are formed in at least one of the two fixing plates.

The invention discloses a power grid uninterruptible power supply automatic switching system and method and a driving circuit, and belongs to the technical field of power electronics, and the system comprises a power supply module which is used for providing electric energy for the system; the relay switch unit is used for controlling the on-off of commercial power input; the acceleration turn-off unit is used for accelerating turn-off of the relay switch unit; the circuit switching unit is used for switching the large-current driving loop into a small-current driving loop after a preset time is delayed; and the control module is used for outputting a high-level signal to control the circuit switching unit to switch the large-current driving loop to accelerate the closing of the relay switch unit, and outputting a low-level signal to control the acceleration turn-off unit to accelerate the turn-off of the relay switch unit. The delay switching driving design and the acceleration turn-off unit are adopted, the power supply hardware design can be greatly simplified, the power requirement of the auxiliary power supply module is reduced, meanwhile, the turn-off time of the relay is remarkably shortened, and the stability and reliability of the power grid uninterruptible power supply in the switching process are ensured.

The utility model discloses a display module capable of solving the problem of heat generation at the position of a TFT IC chip, which comprises a TFT display screen, a backlight structure and heat insulation graphite foam, the TFT display screen comprises upper glass and lower glass, one side of the lower glass extends to form a binding lug boss, and the IC chip is bound on the binding lug boss; the backlight structure is arranged on the side face, close to the lower glass, of the TFT display screen, the backlight structure comprises a backlight support and an LED lamp strip, a containing cavity is formed in the backlight support, and the LED lamp strip is arranged on the side wall, close to the IC chip, of the containing cavity; the heat insulation graphite foam is arranged on the side face, away from the upper piece of glass, of the lower piece of glass, and the heat insulation graphite foam is located at the binding protruding part. Thus, through the heat insulation graphite foam, heat conduction of the LED light bar can be prevented from being conducted to the position of the IC chip, meanwhile, heat concentrated at the position of the IC chip can be diffused, the problem that heat is generated at the position of the TFT IC chip is solved, and then the problem that a black screen occurs due to the fact that the temperature at the position of the IC chip is too high is avoided.

The present disclosure provides a wireless charging device, system and wireless charging misalignment detection method, which relate to the field of wireless charging technology. The wireless charging device includes: a transmitting coil, which is used to convert alternating current into a first electromagnetic signal and emit it to wirelessly charge an electronic device; at least two detection coils, which are respectively arranged around the transmitting coil and are located in the same plane as the transmitting coil, and are used to respectively emit a second electromagnetic signal; a control module, which is respectively connected to the at least two detection coils, and is used to respectively detect each voltage peak value of the voltage waveform of the at least two detection coils after detecting that the voltage waveform of the second electromagnetic signal emitted by the at least two detection coils becomes continuous, and determine whether there is a misalignment between the transmitting coil and the receiving coil in the electronic device according to each voltage peak value.

The utility model provides a novel light-emitting diode (LED) spotlight, which relates to the technical field of LED spotlights and comprises a lamp cover, a lamp cap installed inside the lamp cover, an LED spotlight installed inside the lamp cap, an installation head arranged at the top of the lamp cover and a dismounting assembly arranged between the lamp cover and the installation head. According to the novel LED spotlight, the LED spotlight and the mounting head can be rapidly disassembled through the disassembling and assembling assembly, the whole mounting head does not need to be disassembled from an indoor roof, when the LED spotlight is overhauled or replaced, operation is convenient and fast in the disassembling and assembling process, the time and labor are saved, bolts in holes in the indoor roof are prevented from being disassembled and assembled back and forth, and the maintenance cost is reduced. According to the LED spotlight, the holes are formed in the lamp cap, sand and stones in the holes are prevented from loosening and falling off, the situation that the holes are enlarged to affect the bolt installation stability is avoided, heat in the lamp cap can be led out through the cooling fins and the heat removal grooves, the led-out heat can be discharged out of the lamp cover through the heat removal grooves, heat is prevented from being gathered in the lamp cap, and the LED spotlight is prevented from heating and scalding; and the service life of the LED spotlight is prolonged.

The utility model discloses a bottom cover assembly and an electric toothbrush, and the bottom cover assembly comprises a bottom cover which is provided with a storage cavity; the wireless charging module is arranged in the storage cavity; the magnet is arranged in the storage cavity, and the magnet and the wireless charging module are arranged at an interval; and the shielding structure is provided with a first shielding part which extends into the interval. According to the arrangement, a charging structure is prevented from being exposed and corroded by adopting a wireless charging mode, and meanwhile, the connection stability during charging is ensured, and electromagnetic interference is avoided.

An image signal processing method, a pan-tilt head, a transmission device, a pan-tilt head system and a storage medium, wherein the pan-tilt head system includes an image transmission device and a pan-tilt head, wherein the image transmission device is used to convert a first image signal into a second image signal and the image transmission device is used to perform target object recognition processing on the first image signal output by a shooting device, and the image transmission device transmits the second image signal and the result of the target object recognition processing to the pan-tilt head, so that the pan-tilt head can display according to the second image signal and control the pan-tilt head rotation and / or adjust the shooting parameters of the shooting device according to the result of the target object recognition processing. This embodiment realizes the display of real-time images on the pan-tilt head and transfers the image processing function performed by the pan-tilt head to the image transmission device, thereby improving the accuracy of image processing.