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173results about How to "Reduce assembly complexity" patented technology

High-performance power-assisted steering electronic control box

The invention discloses a high-performance power-assisted steering electronic control box. A motor power supply plug connector and a sensor signal plug connector are integrally formed through injection molding and arranged on the front side wall of a cover plate. A vehicle body power supply plug connector and a vehicle body signal plug connector are integrally formed through injection molding and arranged the rear side wall of the cover plate. The motor power supply plug connector is transversely arranged. The sensor signal plug connector, the vehicle body power supply plug connector and the vehicle body signal plug connector are vertically arranged. The height of the cover plate gradually decreases from the middle to the front portion, and the height of the cover plate is kept unchanged from the middle to the rear portion. With the halving line, in the left and right direction, of a shell of the electronic control box serving as a boundary, the motor power supply plug connector and the vehicle body power supply plug connector are located on the left side, and the sensor signal plug connector and the vehicle body signal plug connector are located on the right side. Totally, three circular installation lugs are arranged on the left side wall and the right side wall of a bottom plate. The height of the installation lugs is larger than the thickness of the bottom plate. Positioning protrusions extend into positioning grooves so that the bottom plate and the cover plate can be installed and positioned. The high-performance power-assisted steering electronic control box is compact in structure and small in size and effectively eradicates inter-wire interference produced in the assembling.
Owner:CHONGQING LONGRUN AUTOMOBILE STEERING GEARS

Battery pack, vehicle and energy storage device

The invention discloses a battery pack, a vehicle and an energy storage device. The battery pack comprises a battery array and a support member, wherein the battery array includes a plurality of single batteries, the single batteries have a first size, and the first size is the maximum value of the distance between two parallel planes virtually clamping the single battery; at least one single battery satisfies the following conditions: the first size is greater than or equal to 600mm and less than or equal to 2500mm, and the single battery is supported on the support member; the normal direction of the two parallel planes corresponding to the first size is the Q-direction, the battery pack is internally provided with a battery placement area, the battery array is located in the battery placement area, and the single battery extends from one side of the battery placement area to the other side of the battery placement area in the Q-direction. According to the battery pack of the invention, the plurality of long single batteries form the battery pack, so that the battery capacity of the battery pack is improved. Meanwhile, the first size within the specific range is adopted, and thusthe space utilization ratio of the battery pack can be improved.
Owner:BYD CO LTD

Four-port optical circulator with symmetric structure

The invention discloses a four-port optical circulator with a symmetric structure. The optical circulator is sequentially provided with a dual optical fiber collimating device, a beam splitting / combining element, a polarization conversion subassembly, a light path transformation subassembly, a polarization conversion subassembly, a beam splitting / combining element and a dual optical fiber collimating device along the axial direction of the whole device, wherein the beam splitting / combining element adopts a parallelogram birefringent crystal structure, and moreover, the left inclined surface and the right inclined surface in the crystal structure are both toward the light transmission direction; the light path conversion subassembly comprises a wedge plate pair and a roof prism, wherein the wedge plate pair is formed by combining two wedge plates which are matched with each other at angles; and the optical axes of the two wedge plates are mutually orthogonal. With the adoption of the four-port optical circulator with the symmetric structure provided by the invention, a symmetric light path can be enabled to be formed in the beam splitting / combining element, and the input and output of the optical circulator can be kept on the axis of the whole equipment, thus, the production and assembly can be conveniently carried out; and benefits are brought to debug the light path and package devices.
Owner:HUAZHONG UNIV OF SCI & TECH

Centroid-driven focusing mechanism based on flexible hinge

InactiveCN110727077AHigh linear motion precisionImprove support rigidityMountingsElectric machineEngineering
The invention relates to a centroid-driven focusing mechanism based on a flexible hinge. The centroid-driven focusing mechanism comprises a base, two sets of guide rail sliding blocks, a lens group bracket, an optical lens group, the flexible hinge, a driving connecting rod, a linear motor and a linear motor bracket. Through the two sets of guide rail sliding blocks, a high-precision linear motionsupport is provided for the optical lens group and the lens group bracket, and the linear motor is utilized as motion drive of the optical lens group and the lens group bracket; on the basis of the flexible hinge, the requirement for the angular deviation error between the driving axis of the linear motor and the motion direction of the optical lens group is reduced; and through the driving connecting rod, it is ensured that a driving force-bearing point of the lens group bracket is located between the two sets of guide rail sliding blocks, and thus a centroid-drive form is achieved. According to the focusing mechanism, through the flexible hinge and the driving connecting rod, the influences of the assembly angular deviation error of the linear motor and driving force eccentricity on themotion precision of the lens group are effectively relieved, the problems of jamming, hysteresis and the like of the lens group are avoided, and meanwhile, the assembly complexity of the focusing mechanism is reduced.
Owner:LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC

Automatic bullet conveying device for mortar

The invention discloses an automatic bullet conveying device for a mortar. The automatic bullet conveying device for the mortar is detachably mounted on a mortar barrel (6) fixedly and comprises a guide track system (1), a planar four-bar linkage (2), a lead screw and sliding table mechanism (3), a clamping mechanism (4) and a tray (5); the clamping mechanism (4) is used for clamping a bullet placed on the tray (5); and under the combined action of the planar four-bar linkage (2) and the lead screw and sliding table mechanism (3), the bullet is fed into the mortar barrel (6) along the guide track system (1). The automatic bullet conveying device for the mortar is rapid in bullet conveyance, high in reliability and good in stability.
Owner:NANJING UNIV OF SCI & TECH

Catalyst ignition stage torque distribution method, system and device

The invention provides a catalyst ignition stage torque distribution method. The method is used for a hybrid vehicle comprising a control system and an exhaust system. The method comprises the following steps that: a vehicle driving demand torque and the first temperature of a first catalytic converter are acquired, and whether the temperature of the first catalytic converter reaches an ignition temperature or not is judged; and if the temperature of the first catalytic converter does not reach the ignition temperature, the vehicle driving demand torque is compared with a motor torque output threshold value, and when the vehicle driving demand torque is smaller than or equal to the motor torque output threshold value, a motor control module is adopted to control the output torque of the motor to be the vehicle driving demand torque and control an engine to heat the first catalytic converter. On the basis of the method, the invention further provides a system and a device. According tothe method, system and device of the invention, different output torque distribution strategies are designed the engine works under proper working conditions, so that the temperature of the first catalytic converter and the temperature of a second catalytic converter are increased respectively, and meanwhile, the torque output range of the engine is limited; the situation that oil consumption andemission are not facilitated due to multiple transient working conditions of the engine, large load of a refrigerator and the like is avoided; and vehicle fuel economy is improved.
Owner:ZHEJIANG FENGRUI ENGINE CO LTD +1

Power battery pack, energy storage device and electric vehicle

The invention relates to a power battery pack, an energy storage device and an electric vehicle. The power battery pack comprises an accommodating device (200) and a plurality of single batteries (100) arranged in the accommodating device (200); the accommodating device (200) comprises a first frame (201) and a second frame (202) which are oppositely arranged in the first direction (A1). The plurality of single batteries (100) are arranged between the first frame (201) and the second frame (202); the length of each single battery (100) in the first direction (A1) is L1, the distance between the inner surface of the first frame (201) and the inner surface of the second frame (202) in the first direction (A1) is L2, and L1 / L2 is larger than or equal to 50%. According to the technical scheme,only one single battery is arranged in the first direction, so that the single battery can play a role of a cross beam and / or a longitudinal beam, and the volume utilization rate of the accommodatingdevice is increased.
Owner:BYD CO LTD

Vector water-jet propeller and vector water-jet propulsion method

The invention discloses a vector water jet propeller device and a vector water jet propulsion method, belongs to the technical field of water propulsion of ships and amphibious vehicles, and solves the problem that the existing water jet propulsion ship and amphibious vehicle cannot effectively control the posture of a vehicle body or a ship body. The vector water jet propeller mainly comprises awater inlet shell, a water outlet shell, a propeller support, a water jet propeller inner container and an oil cylinder assembly arranged on the propeller support. The spherical propeller inner container can rotate in the shell, the two ball supports which are perpendicular to each other are fixedly installed on the inner container, the water jet propeller inner container is pushed to rotate in the shell by controlling stretching and retracting of a piston rod of the oil cylinder assembly, the left-right angle and the pitching angle of a water spraying pipe on the inner container are adjusted,and the water spraying angle of the vector water jet propeller is controlled. Vector propelling force in different directions can be obtained by changing the angle of tail water jet flow, then the posture can be adjusted according to environmental disturbance and waves, and the seakeeping performance and navigation stability of amphibious vehicles or ships are improved.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY +1

Micro-inertial measuring component structure to resist high overload

The invention discloses a micro-inertial measuring component structure to resist a high overload, and the micro-inertial measuring component structure comprises a supporting structure that is a hollowed-out hexahedral structure formed by supporting ribs. Three orthogonal axial sides of the hexahedral structure are open-through. At least one frame of one hollow plane extends outwardly to form a lugboss, so that the supporting structure has seven hollow planes for mounting circuit boards. A potting material is filled into the internal space of the hexahedral structure through the three orthogonal axial sides. The micro-intertial measuring component structure reduces the degree of assembly complexity of a sensor circuit board as well as an overall component, and reserves a space or a passagefor flowing of the material in the potting process to ensure the compactness of the potting. The micro-inertial measuring component structure is novel in design and easy for assembly operation, and high overload requirements can be met while realization of miniaturization.
Owner:SUZHOU R&D CENT OF NO 214 RES INST OF CHINA NORTH IND GRP

Outdoor modular refrigerating module and installation method thereof

The invention provides an outdoor modular refrigerating module used for conducting refrigeration on a cabinet module. The cabinet module comprises a shell, wherein the side face of the shell is provided with an opening, and the shell is internally provided with a cold channel and a hot channel which are isolated through a cabinet. The refrigerating module comprises a case and a refrigerating module body arranged in the case, wherein the case is provided with an air inlet, an exhaust outlet and an air outlet which is connected with the opening in the shell in a butted manner, and the refrigerating module body comprises an air inlet cavity which communicates the air inlet with the cold channel, an air return cavity which communicates with the hot channel, a direct air inlet unit which is arranged at an inlet of the air inlet cavity, an air wall unit which is arranged at an outlet of the air inlet cavity and an air exhaust unit arranged at the exhaust outlet. The refrigerating module is manufactured, assembled and adjusted in a factory in advance and then conveyed to the scene, and then butt-joint installation of the refrigerating module and the cabinet module is completed, so that the building efficiency of a refrigerating system is greatly improved, the on-site construction workload is reduced, and thorough decoupling with a machine room is achieved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

System and method for online inspection of turbines including aspheric lens

Optical camera systems for nondestructive internal inspection of online, operating power generation turbines, including gas turbine combustor and turbine sections that are at high operating temperatures in the range of over 600 DEG C (1112 DEG F) and which include combustion gas contaminants. The inspection system includes one or more aspheric lenses capable of withstanding continuous operating temperatures above 600 DEG C. The aspheric lenses, alone or in combination with spherical lenses, establish a wider field of view, and require fewer lenses in combination than lens mounts incorporating only spherical lenses. A cooling system incorporated in the inspection system facilitates continuous operation and inhibits lens external surface fouling from combustion gasses.
Owner:SIEMENS ENERGY INC

Back light module, light conducting plate and manufacturing method thereof

A backlight module comprises a diffusion film, a prism film and a light conducting plate, which has a first surface and a second surface opposite the first surface, wherein a plurality of diffusion particles are distributed thereon, the prism film is arranged on the first surface of the light conducting plate, the diffusion film is arranged on the prism film. Besides, the invention also provides a light conducting plate and method for making same.
Owner:PRODISC TECH INC

Position inverse solution method of six-axis robot and six-axis robot

The invention relates to a position inverse solution method of a six-axis robot and the six-axis robot. The inverse position solution method of the six-axis robot is a geometric solution combined with a robot kinematics basic theory, geometric meanings of the six-axis robot can be visually displayed, conventional rigid body kinematics and robotics theories are combined, only basic arithmetical operation and basic operation of a matrix are involved, an iterative operation process is avoided, and the calculation speed is high after programming. The position inverse solution method of the six-axis robot can be used for kinematics simulation before development of the six-axis robot, guiding model selection of parts of the six-axis robot and checking whether the extension value of a piston rod of an electric cylinder of the six-axis robot is within an allowable range or not.
Owner:伯朗特机器人股份有限公司

Power battery pack, energy storage device and electric vehicle

The invention relates to a power battery pack, an energy storage device and an electric vehicle. The power battery pack comprises an accommodating device and a plurality of battery single bodies arranged in the accommodating device. The accommodating device is provided with a plurality of accommodating areas. Each accommodating area is provided with a first frame and a second frame which are oppositely arranged in the first direction, and the battery single bodies arranged between the first frame and the second frame. The first frame and the second frame have different intervals along the first direction among different accommodating areas. Each battery single body comprises a first end and a second end which are opposite to each other, and the distance between the first end and the secondend of each battery single body is matched with the distance between the corresponding first frame and the corresponding second frame. Due to the fact that the battery single bodies extend between the first frame and the second frame, use of the cross beams and / or the longitudinal beams can be reduced, the space utilization rate of the accommodating device is increased, and the accommodating device is provided with the plurality of accommodating areas different in shape and size and can be matched with the structure and shape of an installation space on an electric vehicle.
Owner:BYD CO LTD

Clamp and plate component assembly system with clamp

The invention discloses a clamp and a plate component assembly system with a clamp, and the clamp comprises a clamp seat, a rod member and a pressure block. The clamping seat has a first wall and a second wall; wherein the first wall has a first free end on which the first hook is formed. The second wall is disposed opposite the first wall and has a second free end opposite the first free end; anda second hook is formed on the second free end. The rod has a first end; the first end passes through the holder to move axially between the first wall and the second wall. The pressure block is disposed on the rod at the other side of the clamp opposite the first end; and is movable toward or away from the clamp. When the first end of the rod moves to the first position, the first end presses the first wall and / or the second wall to expand; when the first end of the rod moves to the second position, a gap is formed between the first end and the first wall as well as between the first end andthe second wall.
Owner:AU OPTRONICS CORP

Speed inverse solution method for six-axis robot and six-axis robot

The invention relates to a speed inverse solution method for a six-axis robot and the six-axis robot. The speed inverse solution method for the six-axis robot is a geometric solution combined with a basic theory of robot kinematics, can visually display geometric meanings of the six-axis robot, combines conventional rigid body kinematics with robotics theories, only involves basic arithmetical operation and basic operation of matrixes without iterative operation process, and is high in calculation speed after programming, and the speed inverse solution method for the six-axis robot can be used for kinematics simulation before development of the six-axis robot, guiding model selection of parts of the six-axis robot and inspecting whether the elongation value and the extension speed of a piston rod of an electric cylinder of the six-axis robot are within allowable ranges or not.
Owner:伯朗特机器人股份有限公司

Chalcogenide optical element with electromagnetic shielding performance and preparation method thereof

The invention relates to a chalcogenide optical element with an electromagnetic shielding performance and a preparation method thereof. The method includes following steps: (1) plating an inorganic membrane layer on the surface of a substrate of the chalcogenide optical element; (2) spraying an organic coating on the surface of the inorganic membrane layer; and (3) transferring a graphene infrared transmitting electromagnetic shielding film to the surface of the organic coating to obtain the chalcogenide optical element with the electromagnetic shielding performance. According to the chalcogenide optical element with the electromagnetic shielding performance, compared with the optical element regarding a metal mesh as a shielding body, the realization performance is great, the manufacturing method is simple, and the manufacturing cost is low; according to the chalcogenide optical element with the electromagnetic shielding performance, the light absorption coefficient in the work waveband of 1.06-12 [mu]m is small, the light transmittance is high, and the electromagnetic shielding effect is high; and the sheet resistance is lower than 35 ohms per square, the electromagnetic shielding efficiency is greater than 15 dB, and the infrared transmission loss is less than 3%.
Owner:CHINA BUILDING MATERIALS ACAD

Laser radar

The invention discloses a laser radar. The laser radar comprises at least one laser emitting unit; the laser emitting unit comprises a plurality of emitting devices; each emitting device generates onepath of detection light; the multiple paths of detection light generated by the emitting devices are emitted in parallel to form an emergent light beam; and the emitting devices include a distance emitting device suitable to generate distance detection light, and a color emitting device suitable to generate color detection light. The laser radar is a color laser radar, and distance information and color information can be obtained at the same time; and the multiple paths of the generated detection light are emitted in parallel, so that the laser radar does not need to calibrate the positionsof different emitting devices, the difficulty of back end data processing can be effectively lowered, and the assembly complexity is lowered; and in addition, the laser radar can realize light beam path sharing without extra optical components, and can meet the development requirements of low cost, miniaturization and solid state.
Owner:HESAI TECH CO LTD

Mobile terminal with metal bracket

The embodiment of the invention, which relates to the technical field of the structural design of a mobile terminal, discloses a mobile terminal with a metal bracket. The mobile terminal comprises a front shell having an inner frame, a display screen module having a display frame connected with the inner frame in a matching manner, a rear shell, and a metal bracket. The rear shell is made of a plastic material based on injection moulding and includes a support member and a connecting member that are formed by injection moulding. The metal bracket arranged between the display screen module andthe rear shell includes a sinking portion, a rigid connecting portion and a fitting portion; and the metal bracket that fixes and the supports the display screen module by the sinking portion is in rigid connection with the rear shell by the rigid connecting portion and is in fitting connection with the front shell by the fitting portion. Therefore, the structural strength of the mobile terminal is improved.
Owner:SHENZHEN ZHANGYUE TECH CO LTD +1

Handheld printer

The invention discloses a handheld printer, and relates to the technical field of printers. The handheld printer comprises a machine shell, an ink box, a main roller, a main control board and an FPC device, wherein the FPC device comprises a flexible circuit board; the main control board and the flexible circuit board are both arranged in the machine shell, the ink box can be placed inside the machine shell, the flexible circuit board is electrically connected with the main control board, and the flexible circuit board can be electrically connected with the ink box; a printing driving module,a position sensor module and an ink box recognition module are integrated on the flexible circuit board; and the main roller is connected with the machine shell, the main roller is connected with a magnet, and the magnet is opposite to a Hall element inside the position sensor module. According to the handheld printer, the printing driving module, the position sensor module and the ink box recognition module are integrated on one flexible circuit board, so that the space utilization rate is improved, the wiring number can be reduced, the assembly complexity is reduced, and the production efficiency is improved.
Owner:ZHUHAI BENTSAI PRINTING TECH CO LTD

Worktable and backside alignment device

The invention belongs to the technical field of integrated circuit manufacturing and specifically discloses a worktable and a backside alignment device. The worktable disclosed by the invention comprises a horizontal base, an air foot, a suction cup and a first air guiding component, wherein the horizontal base is provided with a light-transmitting hole penetrating through the upper surface of thehorizontal base; the air foot is arranged on the horizontal base and is movable on a horizontal plane relative to the horizontal base; a plurality of first light-passing holes are disposed on the airfoot at intervals; when the air foot moves on the horizontal base, the plurality of first light-passing holes can communicate with the light-transmitting hole; the suction cup is arranged above the air foot, and can be rotated in three degrees of freedom relative to the air foot and translated in a vertical direction; the suction cup is provided with a second light-passing hole at a position corresponding to the first light-passing holes; the upper surface of the suction cup is provided with a first adsorption air passage for adsorbing the substrate; one end of the first air guiding componentis in communication with the air foot, and the other end of the first air guiding component is in communication with the first adsorption air passage. The worktable and the backside alignment deviceprovided by the present invention are simple in structure and low in cost.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD

Panel, component for an airplane airfoil comprising the panel, and method for producing the panel

The present invention relates to a panel, especially for a component having a box structure in an airplane airfoil, comprising a surface shaped body and grid-like reinforcement bars protruding from the body on one side of the body, and the body and the grid-like reinforcement bars are integral molded. Since the body and the grid-like reinforcement bars of the panel are integral molded, no additional connecting process is required, so that the disconnection phenomenon as happened between the skin and the stiffener or stringer of the prior art would not occur, and the assembly complexity can be decreased.
Owner:空中客车简易股份公司

Display screen assembly and electronic equipment

The embodiment of the invention provides a display screen assembly and electronic equipment. The display screen assembly comprises a display screen which is provided with a signal leading-in area forforming an image signal path and a display area for displaying an image; an optical lens which is movably arranged at the under-screen position, corresponding to the signal leading-in area, of the display screen and is used for collecting external image signals led in through the signal leading-in area; and an imaging chip which is arranged in the imaging area of the optical lens and is used for acquiring the image signals acquired by the optical lens. According to the invention, a fingerprint function and a front function are integrated into one lens module, thereby truly achieving the full-screen display effect of the electronic equipment, and enabling the electronic equipment to be more competitive in overall beauty; the functions are more concentrated, the occupied internal space of the mobile phone is smaller, and the portability of electronic equipment is better facilitated; and meanwhile, the number of lens modules is reduced, so that the number of switching BTBs is reduced, theassembly complexity is reduced, and the connection reliability is improved.
Owner:OPPO CHONGQING INTELLIGENT TECH CO LTD

Radio frequency assembly and communication equipment

The embodiment of the invention relates to a radio assembly component and communication equipment. Wherein the radio frequency assembly comprises a radio frequency board which is provided with M first radio frequency connection points; a radio frequency circuit is arranged on the radio frequency board, and the radio frequency circuit is used for supporting transceiving processing of radio frequency signals; an antenna plate is provided with M second radio frequency connection points, and each second radio frequency connection point is connected with one first radio frequency connection point in a one-to-one correspondence manner; an antenna group is arranged on the antenna plate and comprises N antennas; a switching circuit is arranged on the antenna board, a plurality of first ends of the switching circuit are connected with the M second radio frequency connection points in a one-to-one correspondence mode, and a plurality of second ends of the switching circuit are connected with the N antennas in a one-to-one correspondence mode. The switching circuit is used for selectively conducting the radio frequency paths between any M antennas and the M second radio frequency connection points in one-to-one correspondence, so that the occupied area of the radio frequency board can be saved, the insertion loss caused by radio frequency routing on the radio frequency board is effectively reduced, and the communication performance of the radio frequency assembly is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Joining arrangement for joining a first joining partner to a second joining partner of a vehicle

The invention relates to a joining assembly for joining partners of a vehicle, including a first joining partner, at least one second joining partner, and a holding device by which the joining partners can be connected to each other to form the joining assembly, where the holding device includes a receiving structure on which at least one adhesive member is arranged, which can be brought into at least two states, where in a first state, the adhesive member allows an adjustment of the second joining partner on the first joining partner, where the change from the first state into a second state can be activated by transformation means, where in the second state, the adhesive member is cured, whereby fixation of the joining partners to each other can be achieved.
Owner:HBPO

Paper folding type wheel with variable width

The invention relates to a paper folding type wheel with the variable width. The paper folding type wheel comprises a reducing wheel carrier and a wheel shaft installed on the reducing wheel carrier.The reducing wheel carrier comprises a plurality of folding units sequentially connected end to end to form a ring. Each folding unit is provided with a first plane, a second plane, a third plane, a fourth plane, a fifth plane and a sixth plane; a first valley fold line is arranged between the first plane and the second plane and is symmetrically arranged by taking the first valley fold line as acenter; a first mountain fold line is arranged between the third plane and the fourth plane and is symmetrically arranged by taking the first mountain fold line as the center; a second valley fold line is arranged between the first plane and the third plane, a third valley fold line is arranged between the second plane and the fourth plane, the fifth plane and the sixth plane are symmetrically arranged with the first valley fold line as the center, and the fifth plane and the sixth plane are connected with the first plane and the second plane respectively. The paper folding type wheel with thevariable width can adjust the width of the variable-diameter wheel carrier, and belongs to the technical field of variable-width wheels and variable-diameter wheels.
Owner:GUANGZHOU UNIVERSITY

Collision bumper for optical mechanical module, and movable lenses

The invention relates to an optical-machine module and the lens moving buffer device that includes lens, actuator, the first magnetic component and the second magnetic component. The actuator supplies a thrust to drive the lens along optical axis direction. And the first magnetic component is set on the lens. The second magnetic component generates a magnetic reverse thrust along optical direction between the first magnetic component and the second magnetic component. When the actuator drives the lens, the second magnetic component supplies reverse thrust as the buffer power for lens. The non-contact magnetic component takes the place of contact flexible component to avoid the noise and decrease the installing complex. It could effectively save space and decrease volume of the optical-machine module.
Owner:ASUSTEK COMPUTER INC
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