54results about How to "Improve the installation environment" patented technology

The invention relates to a separation mechanism of an oriented rocket nose body. The separation mechanism comprises four explosive bolts, a mounting plate, a support lug, four spring guide rods, four compression springs and a bottom plate, and is characterized by also comprising a top cylinder, four guide rods and four top plates; one end of the top cylinder is fixedly connected to the middle part of the mounting plate, and the other end of the top cylinder is provided with two boss structures; the four guide rods pass through a through hole of a boss in the end part and are fixedly connectedto the other boss; the top plates are arranged at one end of each of the compression springs; and the four top plates compress the four compression springs and are clamped on the boss on the end partof the top cylinder. By the separation mechanism, the rocket nose body can be connected reliably during flight, a combination body of a cabin body and a rocket body can be cast quickly and stably along the axial direction after a deblocking instruction is received, and effective loads inside the cabin body are impacted, damaged and polluted in the separation process so as to provide an excellent installation environment for the subsequent operation of the effective loads.

The invention provides a hanging type construction staircase of a deep foundation pit and a construction method thereof. The hanging type construction staircase is located between two reinforced concrete horizontal supports and comprises a first step section, a second step section and a third step section, wherein the first step section, the second step section and the third step section are connected in a head-to-tail mode to be a Z-shaped structure. According to the hanging type construction staircase of the deep foundation pit, the reinforced concrete horizontal supports in the deep foundation pit engineering are utilized, the staircase is suspended on the supports, the mounting environment of the construction staircase can be greatly expanded, and the use performance is improved; and in addition, the staircase can be lengthened or removed by sections according to the engineering progress, the shortcoming that the site change is large during construction of the deep foundation pit is overcome, and good adaptability is achieved.

The pre-distribution assembly method for slot of underground vehicle comprises: first, finishing the slot pre-distribution on platform based on supporting frame by assembling all cables and accessories into slots according to design request; then, conveying said pre-distribution slots to two sides of vehicle with a hydraulic lifting movable carriage for underframe slot assembly. The advantages of this invention include: not high investment for field and device in infrastructure, about 9-10h to complete the assembly and continuing some work for assembling underframe slot compared with about 12h overseas and stopping other operation; reducing assembly difficulty greatly, and improving work environment.

The embodiment of the invention provides an antenna tuning method and a terminal. The method comprises the steps of obtaining a first working frequency band of a first antenna under the condition that the first antenna is in a working state and a second antenna is in a standby state; determining a target radio frequency path corresponding to the first working frequency band in the at least two second radio frequency paths according to a preset corresponding relation between the working frequency band of the first antenna and the at least two second radio frequency paths; and controlling the second power amplification unit to conduct the second antenna and the target second radio frequency. According to the embodiment of the invention, the radiation power of the antenna in the working state is adjusted by utilizing other antennas and the load on the radio frequency path which can be connected with the other antennas, so that the antenna can work with better working efficiency, thereby saving the use of an antenna tuner and reducing the production cost of the terminal.

The invention discloses a groove body wire arrangement device for bus duct processing and a using method of the device. The wire arrangement device comprises a first L-shaped fixing plate and a secondL-shaped fixing plate. The first L-shaped fixing plate and the second L-shaped fixing plate are oppositely arranged; transverse plates are fixedly connected to the middle parts of the top ends of thefirst L-shaped fixing plate and the second L-shaped fixing plate; L-shaped sliding rods are connected to the tops of the two transverse plates in a sliding mode. One end of each of the two L-shaped sliding rods is fixedly connected with a connecting plate; the ends, away from the L-shaped sliding rods, of the two connecting plates are fixedly connected with guide plates. The bottom ends of the two guide plates are fixedly connected with limiting plates; one side wall of each of the two limiting plates is fixedly connected with a static electricity removing brush. According to the groove bodywire arrangement device for bus duct processing and the using method thereof, a magnetic conductive sleeve and a connecting rod are arranged, any distance between the first L-shaped fixing plate and the second L-shaped fixing plate can be rapidly locked, the fixing requirements of groove bodies of different sizes are met, the fixing steps are simple, and it is not required to screw a screw rod anda screw.

The invention discloses a speed measurement control device for a motor. The speed measurement control device comprises a motor main shaft inserted in a stator iron core and a rotor iron core, wherein the motor main shaft is fixed in an upper end cover and a lower end cover of the motor through an upper bearing device and a lower bearing device respectively; the upper bearing device comprises an upper end cover bearing fixed on the main shaft; the upper end cover bearing is arranged in a concave platform of the upper end cover of the motor; an upper bearing elastic component is radially arranged on the upper end cover bearing in the concave platform; an upper sealing cover plate is axially arranged on the upper bearing elastic component; the lower bearing device comprises a lower end coverbearing fixed on the main shaft; the lower end cover bearing is arranged in an inner concave platform of the lower end cover of the motor; a lower bearing elastic component is radially arranged on the lower end cover bearing in the inner concave platform; a lower sealing cover plate is arranged in an outer concave platform of the lower end cover of the motor; and signal converters are arranged incavities of the lower sealing cover plate and the outer concave platform. The scheme provided by the invention overcomes the defect that the motor application is limited because the conventional motor is not provided with the speed measurement control device and the like; besides, the speed measurement control device is suitable for various control motors.

The invention discloses a sealing structure of a wire passing hole of an electric device storage body. The sealing structure comprises a sealing plate, wherein the sealing plate is riveted and fixed on the electric device storage body; the wire passing hole is formed in the sealing plate; the sealing plate is connected with a position-adjustable sliding plate which clings to the sealing plate via self-tapping screws; and a wire passing hole size adjustment notch matched with the wire passing hole is formed in the sliding plate. The sealing structure requires no gluing, has excellent environmental protection property, is applicable to various electric device storage bodies, and is high in universality.

The invention discloses a clamping assembly for new energy vehicle power batteries. The clamping assembly comprises a base frame including two base plates and a base plate connecting plate, a linear sliding table arranged between two base plates of the base frame, two rolling platforms respectively arranged in front of upper end surfaces of opposite sides of the two base plates in a length direction of the base plates, a movable adsorption device arranged on the base plate connecting plate, two adjustable guide positioning mechanisms arranged on the two base plates, a clamping device arranged above the front part of the linear sliding table, a rotating mechanism connected to the base plate connecting plate, and an operation controller connected to the base plate connecting plate of the base frame through a fixing frame. The clamping assembly provided by the invention solves a problem of heavy manual transporting and assembling, promotes increase of intelligent level of assembling of the new energy vehicle power batteries, reduces consumption, enhances productivity, and solves the assembling of the new energy vehicle power batteries with different specifications.

The invention provides a bearing buffer unit for a motor, comprising motor spindles, wherein the motor spindles pass through the centers of a stator core and a rotor core, and are respectively fixed in the upper end cap and the lower end cap of a motor by an upper bearing device and a lower bearing device; the upper bearing device comprises upper end cap bearings which are fixed at the spindles; the upper end cap bearings are arranged in a concave platform of the upper end cap of the motor; the upper end cap bearings in the concave platform are respectively provided with an upper bearing elastic element in a radial direction; each upper bearing elastic element is provided with an upper sealing cover plate in an axial direction; the lower bearing device comprises lower end cap bearings which are fixed at the spindles; the lower end cap bearings are arranged in an inner concave platform of the lower end cap of the motor; each lower end cap bearing in the inner concave platform is provided with a lower bearing elastic element in a radial direction; and lower sealing cover plates are arranged in an outer concave platform of the lower end cap of the motor. The above technical scheme isused to overcome the defects that bearings for an existing motor are easily extruded mutually and damaged at the joints of the spindles and the end caps due to high-speed running, heat emission, parking, cooling, deformation and the like, the tail ends of the spindles of the motor are exposed and the like. The bearing buffer unit is used for controlling motors in different freezing operating rooms.

The invention discloses air cylinder rod core production equipment and a production method, and belongs to the field of air cylinder rod core machining. The equipment comprises a base, a turntable segmentation mechanism and an electrical control system, wherein the turntable segmentation mechanism and the electrical control system are installed on the base, and the turntable segmentation mechanismis electrically connected to the electrical control system; and the equipment further comprises an inner pipe automatic feeding and placing mechanism, a piston rod automatic feeding and installing mechanism, a downward pressing piston rod and oil adding mechanism, an automatic feeding and assembling mechanism and an overturning mechanism, wherein the inner pipe automatic feeding and placing mechanism, the piston rod automatic feeding and installing mechanism, the downward pressing piston rod and oil adding mechanism,the automatic feeding and assembling mechanism and the overturning mechanismare electrically connected to the electrical control system. According to the production equipment and the production method, the problems of low efficiency, poor quality and waste of labor in the installation process of the cylinder rod core product can be effectively solved, the product processing and assembling efficiency can be improved, the product quality can be improved, the equipment structure is simple, the design is reasonable, and the equipment is convenient to use.

The invention relates to the technical field of LED light sources, in particular to a high-reliability white light LED plane light source module adopting a metal substrate with a special grooved structure. The high-reliability white light LED plane light source module is characterized in that the upper surface of the metal substrate is provided with a special grooved structure, and the metal substrate is internally provided with a graphic circuit layer and an insulating layer having high reflectivity; an LED light emitting chip is directly arranged in the groove of the metal substrate, and the groove is filled by adopting transparent resin or silica gel; the LED light emitting chip is covered to form a filling layer, and a light scattering layer and a fluorescent powder layer are sequentially arranged on the filling layer. Compared with the prior art, the invention adopts automatic machining processes such as a laser engraving or dry-wet engraving method, and the like to manufacture the special groove so as to build good mounting environment for the chip, and moreover, by adding the combined use of the scattering layer and a light emitting layer, a formed plane has small light source thickness, strong area expandability, high stability, high brightness and good uniformity. The LED chip is directly fixed on the metal substrate with the circuit layer, thus the heat-conducting property is good.

The invention discloses a compression-resistant PE communication pipe in the technical field of PE pipes, a sandwich layer is arranged on the outer wall of the inner tube, the sandwich layer includesa shock absorbing pad, a bubble sphere layer is arranged in the inner cavity of the shock absorbing cushion, a composite pearl cotton layer is arranged in the inner cavity of the bubble sphere layer,a foam layer is arranged in the inner cavity of the composite pearl cotton layer, a reinforcement layer is arranged in the inner cavity of the foam layer, a shock absorbing spring is arranged in the inner cavity of the protective sleeve, the gap between the reinforce layer and the inner tube body is filled with rubber balls, an outer pipe body is arranged on the outer wall of the sandwich layer, an anticorrosion wear-resistant layer is arranged on the outer wall of the outer pipe, the outer wall of the anti-corrosion and wear-resistant layer is uniformly provided with auxiliary wear-resistantconvex grains, the anti-compression performance of the pipe is greatly improved by the mutual cooperation of the shock absorbing cushion, the foam layer and the shock absorbing spring of the inner cavity of the sandwich layer, the deformation of the pipe caused by the external reasons is prevented, the use is affected, the installation cost is increased, and the installation environment can be optimized by the auxiliary wear-resistant convex grains, so as to meet the use demand.

The invention relates to a solar photovoltaic assembly and a building curtain wall. The solar photovoltaic assembly comprises a first glass substrate, a solar cell layer, a second glass substrate, a third glass substrate, isolation bars and conjunction boxes. The solar photovoltaic assembly integrates advantages of a photovoltaic module and hollow glass, and adopts the first glass substrate as a light collecting surface; the second glass substrate and the third glass substrate can also carry out secondary or multiple reflections on rays leaked from gaps between the cells in a hollow cavity, so that light passing through the third glass substrate is allowed to be sufficient, and light utilization rate is improved; the building curtain wall formed by the solar photovoltaic assemblies ensures a certain indoor illumination intensity through light passing through the third glass substrate, thereby reducing lighting facilities; and besides, due to shelter of cells, light incident to the room can be reduced effectively, so that use amount of cooling devices can be reduced.

The invention discloses a hanging type empty rail hinge shaft. The hanging type empty rail hinge shaft comprises a pier stud and an empty rail beam body, wherein a pier lug is arranged on the top endof the pier stud, beam lugs are arranged on both sides of the top surface of the empty rail beam body, and the pier lug is movably connected with the beam lugs by virtue of bearing shafts which are horizontally arranged. The invention further discloses a mounting method of the hanging type empty rail hinge shaft. The mounting method comprises the following steps of (S1) mounting the pier stud; (S2) mounting a support square tube and stainless steel; (S3) mounting a square block and a tetrafluorohydrazine sliding block; (S4) mounting a limiting plate; (S5) forming a first through hole; (S6) mounting a square bearing platform; (S7) lifting the empty rail beam body; (S8) mounting the bearing shafts; (S9) mounting adjusting shims; and (S10) mounting a fixed plate. The hanging type empty rail hinge shaft has the advantages that the rotation and sliding of the empty rail beam body are focused on the top of the beam, so that the installation is facilitated, and the sliding and rotation of thebearing shafts are integrated in a factory, so that the implementation of product functions and the quality guarantee are facilitated.

The invention relates to the technical field of basement post-cast strips, in particular to a basement outer wall post-cast strip structure. The structure comprises an outer wall; a post-cast strip isarranged on the outer wall; a reinforcing mesh is exposed on the post-cast strip; the reinforcing mesh comprises transverse shafts and longitudinal shafts which are mutually staggered; a plurality oflongitudinally-arranged steel plates are arranged at the outer side of the post-cast strip; the steel plates shield the post-cast strip; upper shafts and lower shafts are fixedly connected with the faces, close to the reinforcing mesh, of the steel plates; when the steel plates are installed, the upper shafts and the lower shafts are located on the upper sides and the lower sides of the transverse shafts respectively, blocking parts penetrate through the ends, away from the steel plates, of the upper shafts and the lower shafts; and nuts are in threaded connection with the tail ends of the upper shafts and the lower shafts. The basement outer wall post-cast strip structure has the effect of improving the friendliness of the mounting environment of the steel plates.

The invention relates to a heat-insulation cold-preservation insulation board for a low-temperature storage tank and an installation method of the insulation board. The insulation board comprises a high-temperature layer plate (1), an upper intermediate layer plate (2), a lower intermediate layer plate (3) and a low-temperature layer plate (4) which are sequentially arranged in layers, a stainlesssteel mesh (5) is arranged between the high-temperature layer plate (1) and the upper intermediate layer plate (2), a grid cloth (6) is arranged between the upper intermediate layer plate (2) and thelower intermediate layer plate (3), a gap for filling polyurethane is reserved between the lower intermediate layer plate (3) and the low-temperature layer plate (4), a protective skin (7) is arranged on the outer side surface of the high-temperature layer plate (1), and elastic thermal insulation materials (8) are arranged on two adjacent side surfaces of the upper intermediate layer plate (2),the lower intermediate layer plate (3) and the low-temperature layer plate (4). Compared with the prior art, the heat-insulation cold-preservation insulation board has the advantages of being excellent in heat preservation performance, wide in application range, easy and convenient to install, long in service life, excellent in installation environment and excellent in shape design.

The invention relates to environment-friendly dust falling equipment for waste gas treatment and with multiple filtering structures. The dust falling equipment comprises a machine body and an air port, wherein a filtering chamber is formed in the machine body; a transverse plate is arranged in the inner middle part of the filtering chamber; a filtering air net is arranged on the end wall of the transverse plate; an air filtering mechanism is mounted at the side end of the transverse plate; a central through groove is formed in the middle part of the machine body; a sealing drawer penetrates through the front end of the machine body; the air port is formed in the side end of the machine body; side notches are formed in the left end wall and the right end wall of the machine body; and concave bearing mechanisms are mounted at the inner ends of the side notches. The environment-friendly dust falling equipment of the invention has the beneficial effects that side concave plates can be conveniently stored through the side notches; through the use of the side concave plates, a purification pipeline or a purification electric appliance such as a draught fan can be conveniently and directly carried; and meanwhile, the position of the side concave plates can be adjusted through mutual movement between the side concave plates and the side notches, so a more proper assembling environmentcan be conveniently obtained.

The invention discloses an air-cooled fluorine pump air conditioning system and a control method thereof. The control method includes the steps that after the system is installed, actual installationdata including online pipe length and fall data are input into the system, and the system can judge the relation between negative fall and a limiting value by reading the actual installation data; andthe system is automatically controlled to enter a press operation mode, a fluorine pump operation mode or a pressure pump operation mode according to the difference of the negative fall and the limiting valve, and when the negative fall is too large, the power of a refrigerant is improved by utilizing fluorine pump driving, so that the resistance loss and the gravity loss of the refrigerant are counteracted, the product installation and use environment is widened, and meanwhile, energy conservation of annual operation can be realized.

The invention provides a bearing buffer unit for a motor, comprising motor spindles, wherein the motor spindles pass through the centers of a stator core and a rotor core, and are respectively fixed in the upper end cap and the lower end cap of a motor by an upper bearing device and a lower bearing device; the upper bearing device comprises upper end cap bearings which are fixed at the spindles; the upper end cap bearings are arranged in a concave platform of the upper end cap of the motor; the upper end cap bearings in the concave platform are respectively provided with an upper bearing elastic element in a radial direction; each upper bearing elastic element is provided with an upper sealing cover plate in an axial direction; the lower bearing device comprises lower end cap bearings which are fixed at the spindles; the lower end cap bearings are arranged in an inner concave platform of the lower end cap of the motor; each lower end cap bearing in the inner concave platform is provided with a lower bearing elastic element in a radial direction; and lower sealing cover plates are arranged in an outer concave platform of the lower end cap of the motor. The above technical scheme is used to overcome the defects that bearings for an existing motor are easily extruded mutually and damaged at the joints of the spindles and the end caps due to high-speed running, heat emission, parking, cooling, deformation and the like, the tail ends of the spindles of the motor are exposed and the like. The bearing buffer unit is used for controlling motors in different freezing operating rooms.

The invention discloses a capacitor expansion monitoring system and method, and the system comprises a plurality of pressure sensors, and each capacitor unit is provided with at least one pressure sensor; at least two data concentrators, wherein each pressure sensor is correspondingly connected with one data concentrator; the data concentrator is used for detecting the environment temperature of the environment and collecting surface pressure data of the pressure sensor connected with the data concentrator; the data concentrator is also used for sending the event data to the server through the gateway; the server is used for sending a data packet of the data concentrator serving as an event publisher to the data concentrator serving as an event subscriber through the gateway according to the collaborative awareness relationship among the data concentrators; a data concentrator as an event subscriber determines an expansion risk level of a self-monitored capacitor unit from data in the data packet. The capacitor expansion monitoring efficiency is improved, and stable and safe operation of a power grid system is ensured.

The invention relates to the technical field of packaging of lithium batteries, in particular to a packaging method of a solid-state battery. The method comprises the following steps of: performing pre-heating: selecting two steel-plastic films to be butted for preheating; pre-packaging: setting the packaging temperature of an upper sealing head of a packaging machine to be 185-205 DEG C, settingthe packaging pressure to be 0.15-0.2 MP2, setting the packaging time to be 1-1.5s, and performing pre-packaging of the steel-plastic films; final packaging: setting the packaging temperature of the upper sealing head of the sealing machine to be 185-205 DEG C, setting the packaging pressure to be 0.3-0.4MPa, setting the packaging time to be 3-5s, and performing final packaging for the steel-plastic films; and cold press molding: performing cold press treatment for the steel-plastic films, setting the pressure to be 0.04-0.06MPa cold molding and forming of the steel-plastic films to complete the package of the battery cell of the solid state battery. The packaging method can better coating the battery cell of the solid state battery to improve the use performance and the safety performanceof the solid state battery.

The invention relates to the technical field of sludge treatment equipment, in particular to a sludge bin. The sludge bin comprises a bin body and a supporting frame, wherein a feeding port is formedin the upper portion of the bin body, a discharging port is formed in the bottom portion of the bin body, an unloading valve is arranged at the discharging port, a water collecting mechanism used forcollecting leakage water of the unloading valve is arranged below the discharging port, the water collecting mechanism is connected with a water draining mechanism, and the supporting frame is provided with a driving mechanism used for driving the water collecting mechanism to move to the vertical lower portion of the unloading valve and disengage from the vertical lower portion of the unloading valve. The sludge bin has the beneficial effects that when sludge is not unloaded, the water collecting mechanism is moved to the vertical lower portion of the unloading valve to collect the leakage water at the bottom of the bin body, so that the leakage water is prevented from dropping to the ground, the mounting environment of the sludge bin is effectively improved, and the safety is improved; and when the sludge needs to be unloaded, the driving mechanism drives the water collecting mechanism to disengage from the vertical lower portion of the unloading valve, so that the water collecting mechanism is prevented from blocking the sludge, and the damage to the water collecting mechanism caused by sludge falling can be avoided.

The invention relates to a solar photovoltaic assembly and a building curtain wall. The solar photovoltaic assembly comprises a first glass substrate, a solar cell layer, a second glass substrate, a third glass substrate, isolation bars and conjunction boxes. The solar photovoltaic assembly integrates advantages of a photovoltaic module and hollow glass, and adopts the first glass substrate as a light collecting surface; the second glass substrate and the third glass substrate can also carry out secondary or multiple reflections on rays leaked from gaps between the cells in a hollow cavity, so that light passing through the third glass substrate is allowed to be sufficient, and light utilization rate is improved; the building curtain wall formed by the solar photovoltaic assemblies ensures a certain indoor illumination intensity through light passing through the third glass substrate, thereby reducing lighting facilities; and besides, due to shelter of cells, light incident to the room can be reduced effectively, so that use amount of cooling devices can be reduced.

The invention provides an airborne antenna and an aircraft. The airborne antenna comprises a dielectric substrate and two or more radiation sections arranged on the surface of the dielectric substrate, the two or more radiation sections are connected through an impedance matching line, each radiation section is of an axial symmetry structure, and the symmetry axes of different radiation sections have the same direction. By adopting the segmented design of the radiator, the problem of horizontal pattern distortion of the antenna at a high frequency band is improved, and the gain of the antenna at the high frequency band is considered on the basis of satisfying the gain of the antenna at a low frequency band.

The invention discloses a heat insulation and preservation system applied to a low-temperature storage tank. The system comprises an inner heat preservation layer and an outer heat preservation layerwhich are fixed to the surface of the low-temperature storage tank, the inner heat preservation layer is composed of a plurality of heat preservation plates, studs are fixed to the surface of the low-temperature storage tank, and the studs are located in gaps between every two adjacent heat preservation plates. The upper ends of the studs are sleeved with fixing discs, and the fixing discs are pressed on the outer surfaces of every two adjacent heat preservation plates and locked through nuts. The outer heat preservation layer is made of a polyurethane foaming material sprayed outside the inner heat preservation layer. The system is excellent in heat preservation performance, easy to install, firm in connection, not prone to cracking and long in service life.

The invention discloses a novel automatic edge covering device for a daylighting panel production line. The device comprises a working platform, reshaping mechanisms, striking-off mechanisms and an extrusion roller, wherein support legs are arranged on the lower part of the working platform; a daylighting panel is arranged on the upper part of the working platform; edge covering belts are arranged on the two sides of the daylighting panel; the reshaping mechanisms are arranged on the upper parts of the edge covering belts; each reshaping mechanism comprises a disc, a pressure wheel, a bracket and a connecting rod; sliding blocks are arranged on the upper parts of the brackets; the connecting rods are arranged on the upper parts of the sliding blocks; the angles of the connecting rods relative to the daylighting panel can be freely adjusted; each disc is arranged at one end of the corresponding connecting rod; the pressure wheels are arranged on the upper parts of the discs, and are movably connected to the brackets; the edge covering belts are arranged between the discs and the pressure wheels; the striking-off mechanisms are arranged on the rear sides of the reshaping mechanisms; each striking-off mechanism comprises a bracket, a connecting rod and a scraper; the connecting rods are arranged on the brackets; each scraper is arranged at one end of the corresponding connecting rod. According to the device, the edges of the daylighting panel are automatically covered in the daylighting panel production process, and the daylighting panel is strong in strength; the two sides of the daylighting panel are not required to be cut, so that cutting waste is avoided, and the device is safe and environment-friendly.

The invention discloses an antenna assembly, an electronic device and a control method of the antenna assembly, and belongs to the technical field of communication. The antenna assembly comprises an antenna body which comprises a grounding feed point; and a conductive piece and a driving mechanism, wherein one end of the conductive piece is connected with the grounding feed point of the antenna body, and the other end of the conductive piece is connected with the driving mechanism. The antenna body is grounded through the conductive piece, the length of the conductive piece is adjustable, and the driving mechanism is used for adjusting the length of the conductive piece.

Embodiments of the present invention provide an antenna tuning method and a terminal. The method includes: when the first antenna is in the working state and the second antenna is in the standby state, acquiring the first working frequency band of the first antenna; according to the preset working frequency band of the first antenna and the corresponding relationship between the at least two second radio frequency channels, determine the target radio frequency channel corresponding to the first working frequency band among the at least two second radio frequency channels; control the second power amplifying unit to turn on The second antenna communicates with the target second radio frequency. In the embodiment of the present invention, the radiation power of the antenna in the working state is adjusted by using other antennas and the load on the radio frequency path that can be connected with other antennas, so that the antenna can work with better working efficiency, which can save The use of the antenna tuner is eliminated, and the production cost of the terminal is reduced.

The invention relates to the technical field of LED light sources, in particular to a high-reliability white light LED plane light source module adopting a metal substrate with a special grooved structure. The high-reliability white light LED plane light source module is characterized in that the upper surface of the metal substrate is provided with a special grooved structure, and the metal substrate is internally provided with a graphic circuit layer and an insulating layer having high reflectivity; an LED light emitting chip is directly arranged in the groove of the metal substrate, and the groove is filled by adopting transparent resin or silica gel; the LED light emitting chip is covered to form a filling layer, and a light scattering layer and a fluorescent powder layer are sequentially arranged on the filling layer. Compared with the prior art, the invention adopts automatic machining processes such as a laser engraving or dry-wet engraving method, and the like to manufacture the special groove so as to build good mounting environment for the chip, and moreover, by adding the combined use of the scattering layer and a light emitting layer, a formed plane has small light source thickness, strong area expandability, high stability, high brightness and good uniformity. The LED chip is directly fixed on the metal substrate with the circuit layer, thus the heat-conducting property is good.