71results about How to "Reduce the difficulty of assembly process" patented technology

The invention discloses a loudspeaker module, and relates to the technical field of electric-acoustic products. The loudspeaker module comprises a shell. A vibration system and a magnetic circuit system are accommodated in the shell, the vibration system comprises a diaphragm and a voice coil, the diaphragm and the voice coil are combined with each other, an inner cavity of the integral module is divided into a front sound cavity and a rear sound cavity by the diaphragm, the edge of the diaphragm is fixed onto the shell by the aid of an annular support component, and a plurality of cavity extending portions which are formed by means of starving are distributed on the support component at intervals and are communicated with the rear sound cavity. The loudspeaker module has the advantages that the technical problem of increase of resonant frequencies F0 due to narrow rear sound cavities of loudspeaker modules in the prior art can be solved, and the rear sound cavity of the loudspeaker module is large in volume, low in resonant frequency F0, wide in frequency band, good in acoustic performance and long in service life; the loudspeaker module is low in assembling process difficulty and high in production efficiency.

The invention belongs to the technical field of micro propulsion in aerospace and relates to the MEMS (Micro Electro Mechanical System) technique and the general rocket bipropellant device. A novel liquid bipropellant micro chemical propulsion array is provided by combining the advantages of the current solid and liquid micro chemical propulsion device structures in order to overcome the defects in the prior art. The bipropellant micro chemical propulsion array not only solves the problems on complicated working principle, high requirement of processing and manufacturing technology and low working reliability and the like in the current liquid micro chemical propulsion device, but can simply realize reignition and real-time adjustment of thrusting force and maintain the advantages that the traditional solid micro propulsion system can be distributed in arrays and has high integration level and the like.

The invention discloses a backlight module and a display device, and belongs to the technical field of display. The backlight module comprises a shell, a plurality of light sources, a light guide plate and a diffusion sheet assembly; a flexible circuit board extending in the first direction is fixedly arranged on the surface of the side, close to the light guide plate, of the back plate, and the light sources are located on the side, away from the back plate, of the flexible circuit board. The diffusion sheet assembly comprises a diffusion sheet, an auxiliary strip and a supporting part, one opposite section of area of the auxiliary strip in the second direction is attached to the diffusion sheet, the other section of area is attached to the supporting part, and the supporting part is supported between the auxiliary strip and the back plate. The display device comprises a liquid crystal display panel and any backlight module which are oppositely arranged. According to the backlight module, a narrow frame can be achieved, the structural part is formed by attaching the auxiliary strips of the supporting parts and used for providing supporting lap joint for the shading adhesive tape,lap joint attachment of the shading adhesive tape can be guaranteed, the light leakage problem of the module can be better solved, the assembling process difficulty is lowered, and the stability of the whole backlight module can be better improved.

The invention relates to an electromagnetic valve for an automobile braking system, and belongs to the industry of automobiles. A pressing cover is fixedly connected with a main valve seat through four evenly distributed screws, a sealing gasket is arranged between the pressing cover and the main valve seat, the pressing cover, a magnetism-conductive shell body, a coil supporting frame, a table shoulder and the main valve seat are axially compressed in sequence, an inward flanging is arranged at the central hole of the magnetism-conductive shell body, an upper portion inner ring of the magnetism-conductive shell body is in clearance fit with an upper portion outer ring of the magnetism-conductive shell body in the radial direction, a lower portion inner ring of the magnetism-conductive shell body is in clearance fit with an outer ring of a magnetism-conductive gasket in the radial direction, an inner ring of the magnetism-conductive gasket is in clearance fit with an outer ring of the table shoulder, and a large annular groove and a small annular groove are formed in a valve body of the electromagnetic valve. The electromagnetic valve for the automobile braking system has the advantages that the structure is novel, an electromagnetic coil component does not need to be fixed independently, and the cost and assembly process difficulty are obviously lowered while high-pressure sealing performance and magnetism-conductive performance of an electromagnetic circuit are guaranteed. Besides, when a single electromagnetic valve fails to work, the damaged electromagnetic valve can be replaced independently, the failure of an entire HCU assembly is avoided, and the yield of the entire HCU assembly is obviously improved.

The invention discloses a camera module, comprising: a reinforcing plate; at least one circuit board, wherein the circuit board is provided with at least one hollow area and at least one positioning hole attached to the surface of the reinforcing plate; at least one photosensitive chip, wherein the photosensitive chip is attached to the surface of the reinforcing plate through the hollow area on the circuit board; and at least one lens component, wherein the lens component comprises at least one positioning column corresponding to the positioning hole, and the positioning column penetrates through the positioning hole on the circuit board to be attached to the surface of the reinforcing plate so as to assemble the lens component. The invention further discloses an assembly method of the camera module. By adoption of the camera module and the assembly method, the assembly tolerance of the camera module can be reduced to improve the optical performance of the camera module.

The invention relates to a spinning-in pull rod device for a false twist texturizing machine. Six left spinning-in pull rods (5), six right spinning-in pull rods (6) are fixed on a yarn guide base plate device (1) and a guide rail seat device (20); the yarn guide seat plate device (1) and the guide rail seat device (20) are fixed on a lower frame (24) and an upper frame (25) through a base plate (3) and a bracket (4); a yarn guide base plate (9) is connected with a spring steel clamp (2); a yarn guide porcelain (7) is arranged on the yarn guide base plate (9); a slide block (4) is arranged ona pull rod (22), and is in slide connection with a guide rail (10); a swing arm (12) is fixedly connected with the slide block (4) which is provided with a space ring (13) and a sheath (19); the swing arm (12) is provided with a sheath (19) which is provided with a yarn guider (15) and a twist stop (11); and a swing arm guide rail (17) and a clapboard (18) are arranged on a guide rail base plate (16). The spinning-in pull rod device is simple in structure, low in manufacturing cost, convenient to install and regulate, and convenient and reliable to operate.

The invention discloses a novel electromagnetic leakage circuit breaker, include a circuit breaker body, trip mechanism, Operating mechanism, Contact system and leakage signal output system, The tripping mechanism, the operating mechanism, the contact system and the leakage signal output system are arranged inside the circuit breaker body, and the leakage signal output system is used for transmitting the leakage output signal to the operating mechanism, and also comprises a positioning device and a leakage test button. The invention has the advantages of stable frame molding and simple assembly.

The invention relates to the technical field of textile machinery, in particular to a jacquard machine assembly device. The jacquard machine assembly device comprises a broach, electromagnets, clamping plates, a reset spring piece, a moving iron vertical hook, suction assistance spring pieces and reset spring hooks. The broach is arranged on a jacquard machine, the electromagnets are arranged on the clamping plates, the reset spring is arranged on the electromagnet, and the vertical moving iron hook is arranged between the two clamping plates. The vertical moving iron hook is driven by the broach to slide in a T-shaped groove formed by the two clamping plates. A soft magnetic insert is arranged in the vertical moving iron hook. The reset spring hooks are arranged on the clamping plates, and the suction assistance spring pieces are arranged above the reset spring hooks. By means of the jacquard machine assembly device, a moving iron shaft, a moving iron pressure spring, moving iron and a tongue spring which are prone to abrasion are omitted, so that component failures caused by abrasion of the moving iron shaft, the moving iron pressure spring, the moving iron and the tongue spring are eliminated, the component structure is changed, the service lives of the components are prolonged, the machining and assembling difficulty of all components is reduced, production cost is reduced, the failure occurrence rate and maintenance cost are reduced, and the production efficiency of the jacquard machine is improved.

The invention relates to the technical field of sensors, more particularly to a water level sensor comprising a lower casing and an upper casing that are connected together. An air inlet channel is formed in one side of the lower casing. A detecting chamber is arranged in a sealed cavity formed between the lower casing and the upper casing and includes a silicone membrane; and the sealed cavity isdivided into an upper chamber and a lower chamber by the silicone membrane. A magnetic core is connected to a buckle assembly through an ejection assembly. The ejector assembly includes a bottom plate and a hollow top rod that are integrated; the magnetic core sleeves the outside of the hollow top rod; and an inductance coil is connected with a wiring terminal arranged at one side of the upper casing. The assembling process difficulty is reduced substantially; the magnetic core can move up and down stably; and the assembly efficiency and measurement accuracy of the sensor are improved substantially. Meanwhile, on the basis of the reasonable structural design of the air inlet at the bottom of the silicone membrane, forces applied on the bottom of the silicone membrane become uniform and fixed-direction uniform-speed movement is realized. The service life of the sensor is prolonged; and the accuracy of the water level detection is improved.

The invention discloses a solid laser module of a semiconductor laser pump, relating to the technical field of semiconductor lasers. The solid laser module comprises a split upper shell, a split lower shell, a core assembly positioned between the split upper shell and the split lower shell, a water pipeline which is positioned on the split lower shell and is communicated with the core assembly, and a water nozzle which is positioned on the outer side of the water pipeline and is connected with the water pipeline, wherein the core assembly comprises an outer water sealing piece, an inner water sealing piece, a first sealing rubber ring, a second sealing rubber ring, a fixing structural part and a laser array; the inner water sealing piece comprises an end portion and a hollow cylindrical guide barrel fixedly connected with the end portion; the guide barrel is provided with a plurality of turbulence holes; the outer diameter of the end portion is the same as the diameter of the inner cavity of the fixing structural part; the outer diameter of the guide barrel is smaller than the outer diameter of the end portion. By adopting the laser module, the water resistance is reduced, the water flow is increased, the heat dissipating capacity is improved, the forms and quantity of assembled parts are simplified, the difficulty of an assembly process is lowered, and the consistence of the assembly batch is improved.