221results about How to "Meet assembly needs" patented technology

The invention provides a metal-plastic composite mobile phone shell and a forming method thereof. The provided mobile phone shell has a metal surface and a plastic structure feature, wherein the external surface of the mobile phone shell is made of a sheet metal and is small in wall thickness, high in strength and beautiful in appearance; a convex structure feature of the internal surface of the mobile phone shell is made of plastics, so that the formation of a complex installation structure is facilitated, and the functional requirements on assembling and shock absorption and the like are satisfied. According to the forming method, structure features of the sheet metal and the plastic are firmly combined together and form an integral structure. Meanwhile, according to the forming method, the combination strength of plastics and metals is high, so that the mobile phone shell satisfies the assembling and application requirements of mobile phones, and also can be applied to the shell production fields of household appliances, computers and other industrial products.

The invention provides a loudspeaker. The loudspeaker includes a casing, a magnetic circuit system accommodated in the casing, a diaphragm system and a driving device, and the diaphragm system includes a plurality of diaphragms arranged perpendicular to the moving direction of the driving device and arranged adjacent to the The diaphragm between the diaphragms is used to hinder the air circulation between the adjacent diaphragms, and the partition divides the space between the adjacent diaphragms into two cavities that are not connected to each other. The magnetic circuit system of the loudspeaker generates driving force, which is transmitted to the transmission member through the voice coil, and the transmission member simultaneously drives a plurality of the diaphragms, and the plurality of diaphragms vibrate at the same time, and the vibration phase same. The loudspeaker of the present invention is conducive to improving the sensitivity of the loudspeaker without increasing the size of the diaphragm.

The invention discloses a push type locking and unlocking mechanism. The push type locking and unlocking mechanism comprises a shell, a drawer, an unlocking button and an elastic element, wherein a drawer cavity and a drawer opening are formed in the shell; the drawer is arranged in the drawer cavity in a sliding mode and used for carrying a cup rack, or an ashtray or a storage box; the drawer is provided with a first buckling part; the unlocking button is arranged on the shell and can move vertically; the elastic element is arranged between the shell and the drawer. The push type locking and unlocking mechanism further comprises a sliding block and a reset torsion spring, wherein the sliding block is arranged on the shell in a sliding mode and can move leftwards and rightwards under the driving of the unlocking button; a second buckle moving leftwards and rightwards along the sliding block is arranged on the sliding block; when the sliding block is in a locking position, the second buckle and the first buckle are mutually engaged; when unlocking is needed, the sliding block drives the second buckle to retreat from the first buckle, so that unlocking is achieved; the two ends of the reset torsion spring are hooked on the shell and the sliding block respectively. By means of the push type locking and unlocking mechanism, the problem of self-unlocking of the mechanism caused by severe brake action when an accident occurs is solved. The push type locking and unlocking mechanism further has the advantages of being shorter in unlocking stroke, higher in space utilization rate and the like. More assembly requirements can be met.

The invention relates to a polymer electrolyte, especially relates to a micropore polymer electrolyte skeletal material prepared by a coaxial electrospinning technology and a method for preparing a gel polymer electrolyte from the skeletal material, and belongs to the field of polymer lithium ion batteries. The preparation method comprises the following steps of 1, preparing core and shell layer electrostatic spinning solutions, 2, preparing a core/shell structure nanometer fiber film by a coaxial electrospinning technology, 3, drying and cutting the nanometer fiber film, and carrying out lamination to obtain a polymer gel electrolyte skeleton, and 4, putting the skeleton into an electrolyte in a glove box and carrying out activation and gelation. The electrolyte skeleton has ultra-strong electrolyte adsorptivity and retentivity. The prepared gel polymer electrolyte has high ion conductivity, a stable electrochemical window, good charging and discharging performances and good interface compatibility with a lithium electrode, satisfies common button cell assembling requirements and can be used for preparation of a secondary lithium ion battery.

The invention belongs to the technical field of automobile parts assembling, and in particular relates to an automobile door hinge clamp. The automobile door hinge clamp comprises a base and a clamping part arranged on the base for clamping a hinge; the clamping part comprises a first clamping part for clamping a main hinge and a second clamping part for clamping a secondary hinge; axial lines ofpin shaft holes of two hinges clamped on the clamping part are parallel to each other; the clamp has two position states, one is that two clamping parts are separated from each other and independently provided with a corresponding hinge part, and the other is that two clamping parts can relatively move along a plane formed by two parallel pin shaft hole axial lines so that the pin shaft axial lines of two hinges can be guided to be superposed with each other, and the two hinges can be positioned in correct assembling positions to be reliably positioned and clamped; the working efficiency is greatly improved, the structure is simple and convenient for operation and maintenance.

The invention discloses an assembly pose measurement precision pre-evaluation method based on a Monte Carlo method. The method is used to evaluate a fixing device connected with a mobile device in a plugging or butt joint mode, and the measurement of the relative pose of a large component in a simulation environment includes the measurement of a target point, the calculation of a key point, and the calculation of the relative pose. The method comprises the step that 1, a mobile device and a fixing device are placed on the same rail, the mobile device is moved to the position away from the fixing device by a set distance, and a laser tracker is placed on the side face between the mobile device and the fixing device. A distance measuring sensor and two angle measuring sensors are arranged in the laser tracker. In order to solve the problem of pose measurement precision pre-evaluation in large component digital assembly, the invention designs an assembly pose measurement simulation method. The digital measurement process of large component assembly is simulated through a digital measurement system simulation model, pose simulation measurement and assembly pose evaluation to evaluate whether the pose measurement precision meets the assembly requirement or not.

The invention discloses a liquid inlet and flow equalizing device. The liquid inlet and flow equalizing device comprises a flow divider and a liquid inlet pipe, wherein the outlet of the liquid inlet pipe is communicated with the flow divider, the liquid inlet pipe comprises a first elbow and a second elbow, the first elbow and the second elbow are symmetrically arranged, the two ends of the first elbow are communicated with the two ends of the second elbow respectively, and the flow path of fluid flowing in through the inlet of the liquid inlet pipe and flowing through the first elbow to arrive at the outlet of the liquid inlet pipe is equal to the flow path of fluid flowing through the second elbow to arrive at the outlet of the liquid inlet pipe. After gas-liquid mixed refrigerant enters the liquid inlet pipe, one part of the refrigerant flows along the first elbow, the other part of the refrigerant flows along the second elbow, and finally the two parts of gas-liquid mixed refrigerant converge at the outlet of the liquid inlet pipe. Due to the fact that the two parts of gas-liquid mixed refrigerant are opposite in direction at the outlet of the liquid inlet pipe, steady flow is formed by the two parts of gas-liquid mixed refrigerant at the outlet of the liquid inlet pipe, the two parts of gas-liquid mixed refrigerant are evenly mixed and enter the flow divider so that the amounts of liquid refrigerant entering coil pipes are equal, and stability and reliability of the air conditioner are improved.

The invention discloses a platformization vehicle body floor structure. The platformization vehicle body floor structure comprises a front floor assembly and a rear floor assembly, wherein the front floor assembly is connected with the rear floor assembly through a connecting part of which the length is greater than the changing quantity of wheelbase of a lower vehicle body. According to the platformization vehicle body floor structure disclosed by the invention, the change of the wheelbase of the lower vehicle body is realized through changing the length dimension of a part at a joint of the rear floor assembly and the front floor assembly in the first length direction; the connecting position of the front floor assembly and the rear floor assembly can be adjusted to meet the adjusting requirement of the wheelbase of the lower vehicle body, so that the matching requirement of the vehicle body floor for the lower vehicle body with different wheelbases is met; the use rate of generalization parts and components can be increased, the change of the wheelbase of a platformization vehicle can be realized through the minimum change of parts, and the development period and the cost are reduced.

The invention provides a turbine blade ordering method relating to turbine thickened blades and relates to a location and sort algorithm of turbine blades. At present, thickened blades in turbine blades are fixed randomly through manual work in an entire circle of blades, no accurate location and ordering method exists, over-concentrated problem or over-dispersive problem exists in assembling, and the problem that grinding of an assembling clearance in assembling is incapable is prone to occur, however, the turbine blade ordering method relating to the turbine thickened blades solves the above problems. The ordering method comprises the main steps: S1, confirming the number of the thickened blades of the products participating in ordering according to product design requirements, S2, arranging the thickened blades through an equally distributed principle and confirming the sequence numbers of the thickened blades, S3, confirming the installation site sequence numbers of numbers of the thickened blades and processing random numbers, S4, weighing the thickened blades, S5, ordering the thickened blades, S6, weighing ordinary blades, and S7, ordering the ordinary blades. The invention relates to turbine blade ordering of the thickened blades.

The invention discloses a laminating film for a liquid crystal display (LCD), and a liquid crystal display backlight module. The laminating film for the LCD comprises a first structural layer film, asecond structural layer film, and a composite glue layer; the first structure layer film comprises a first base film, a first prism layer and a back coating; the first prism layer is formed by continuously arranging multiple first prisms, the first prism layer is arranged on an upper surface of the first base layer, and the back coating is arranged at a lower surface of the first base film; the structure layer film comprises a second base film and a second prism layer; the second prism layer is formed by continuously arranging multiple second prisms; the second prism layer is arranged on the upper surface of the second base film; the composite glue layer comprises PBMA or PMMA microspheres; and the first prisms are laminated on the second base film through the composite glue layer. In thepremise of ensuring that the brightness can achieve a liquid crystal display product requirement, the masking can achieve the requirement, thereby ensuring that the interference and the glare are avoided, and the visual effect reaches the standard.

The invention discloses an auxiliary device for aero-engine casing assembling. The auxiliary device comprises an annular channel and 2-6 air heaters arranged on the annular channel, wherein assembly flange spigot sides of to-be-assembled casing segments are surrounded in the annular channel. An outlet of each air heater communicates with the annular channel through an air heating pipe. According to the auxiliary device, the annular channel is designed to be of a halved structure; under the condition that a small distance is reserved between two adjacent casing segments, the two halved parts ofthe annular channel can be fixed to the spigot end faces of the to-be-assembled casing segments, and a spigot is heated; the auxiliary device demounting time and the matched casing assembly adjustingtime are shortened, the pre-assembly work of matched casing segments is advanced to be before spigot heating, and the pre-assembly time is shortened; and the casing assembling requirement is met, andmeanwhile the casing assembling efficiency is greatly improved.

The invention discloses a semiconductor embedded mixed packaging structure, and a manufacturing method of the same. The embedded mixed packaging structure includes a circuit board, an opening or cavity, a semiconductor chip, a semiconductor chip package, packaging materials, and a rewiring layer, wherein the circuit board is provided with a first surface and a second surface which are arranged oppositely; the opening or cavity is arranged in the circuit board and is at least used for accommodating the semiconductor chip (Bare Die) and the semiconductor chip package (Semiconductor Package); the semiconductor chip is arranged in the opening or cavity; the semiconductor chip package is arranged in the opening or cavity; the packaging materials are at least used for covering the first surface of the circuit board and filling the space, unoccupied by the semiconductor chip and the semiconductor chip package, in the opening or cavity; and the rewiring layer is at least used for electrically connecting the semiconductor chip, the semiconductor chip package and the circuit board. The semiconductor embedded mixed packaging structure, and the manufacturing method of the same utilize the circuit board embedded technical scheme, and can simplify the integration technological process of the semiconductor chip and the semiconductor chip package, can improve the integration quality and performance, and can effectively reduce the integration area.

The invention discloses a breaking-in tool for spacecraft ground and on-rack fasteners. The breaking-in tool mainly comprises a dust suction device, a handheld drilling device and a redundancy control box, wherein a dust suction pipe of the dust suction device is communicated with the interior of a box body of the redundancy control box through a connector arranged on the side face of the redundancy control box to ensure that powdered scraps can be effectively sucked into the dust suction device without diffusing; the top of the redundancy control box is provided with a hole so that a drill bit of the handheld drilling device can extend into the redundancy control box to break in and damage the fasteners; the redundancy control box is made of transparent organic glass, and multiple layers of brushes are arranged on the inner side of the box body of the redundancy control box and surrounding the hole in the top to tightly attach to the drill bit of the handheld drilling device and prevent the powdered scraps from diffusing out. The breaking-in tool achieves the technical effect of breaking-in of the fasteners in a confined space and a pollution-sensitive environment, achieves clean dismantling of the fasteners in an abnormal state, and meets the demand for assembly of the spacecraft ground and on-rack fasteners.

A MacPherson independent suspension front axle assembly with a circulating ball steering mechanism comprises a circulating ball power-assisted steering device, a steering driving mechanism, a MacPherson independent suspension and a hydraulic disc brake system. The circulating ball power-assisted steering device is arranged on a frame and connected with the MacPherson independent suspension through the steering drive mechanism which is a broken type steering trapezium mechanism. The MacPherson independent suspension comprises a transverse stabilization system. The hydraulic disc brake system is provided with an ABS device. The front axle assembly fills in the blank of adopting the MacPherson independent suspension system and the circulating ball power-assisted steering device steering system which are matched for domestic light commercial vehicles, the front steering trapezium is large in steering power assistance, and ride comfort and controllability of vehicles are improved.

The invention relates to the technical field of electric transmission and transformation equipment, in particular to an adjustable bus duct. The adjustable bus duct comprises an upper cover plate, a lower cover plate, a left side plate and a right side plate, wherein the upper cover plate and the lower cover plate are connected to the two ends of the left side plate respectively and connected to the two ends of the right side plate respectively, the left side plate and the right side plate are each composed of a main plate and an auxiliary plate, the auxiliary plates are inserted in the main plates and are connected with the main plates in a sliding mode, and the auxiliary plates and the main plates are fixed through nuts. Due to the fact that the left side plate and the right side plate are both designed into the main plate and auxiliary plate combined structures and are fixed through the nuts, the space of the bus duct can be adjusted through relative sliding so that the assembling needs of different specifications of buses can be met, and the application range is greatly expanded.

The invention discloses an improved fitting jig of a touch liquid crystal module. The improved fitting jig can provide a touch module and a liquid crystal module which are assembled. The improved fitting jig comprises a base with a groove and a positioning apparatus, wherein an opening part is formed in one corner of the groove of the base; the groove can accommodate the touch module and the liquid crystal module; and the positioning apparatus is positioned in the opening part of the base and can fix the touch module and the liquid crystal module in the groove of the base. According to the improved fitting jig, the module-to-module assembly precision of the touch module and the liquid crystal module in the jig can be improved through the positioning apparatus to meet the edge-to-edge 0.2mm assembly tolerance demand of a user on products, and meanwhile, the improved fitting jig of the touch liquid crystal module can greatly reduce the cost of assembly materials to satisfy low-cost manufacturing policies of electronic products nowadays.