66results about How to "Simplify the production assembly process" patented technology

The invention discloses a loudspeaker module, and relates to the technical field of an electroacoustic product. The loudspeaker module comprises a module housing; a loudspeaker monomer is accommodated in the module housing; the loudspeaker monomer divides an integral module inner cavity into two cavities, i.e. a front sound cavity and a rear sound cavity; the rear sound cavity comprises an accommodating cavity and a sound adsorption cavity which are communicated; the loudspeaker monomer is positioned in the accommodating cavity; the sound adsorption cavity is filled with sound adsorption particles; the accommodating cavity is formed by the surrounding of the module housing; the sound adsorption cavity is formed by the surrounding of a sound adsorption cavity housing; the sound adsorption cavity housing is combined with the module housing; and a netted isolation part is arranged between the sound adsorption cavity and the accommodating cavity. The sound adsorption particles of the loudspeaker module disclosed by the invention cannot be influenced by a module production assembling process, and have a good sound adsorption effect; acoustic performance of the module is obviously improved; sound quality is higher; and meanwhile, the loudspeaker module is low in assembling difficulty and high in production efficiency.

The invention relates to the technical field of printing, in particular to a spray head of a color printer. The spray head comprises an ink cavity, a drive device arranged in the ink cavity, and a spray nozzle arranged on the bottom of the ink cavity. The spray head is characterized in that the spray nozzle comprises a spray nozzle inlet arranged in the ink cavity, a spray nozzle outlet arranged below the outer part of the ink cavity, and a spray nozzle wall connecting the spray nozzle inlet with the spray nozzle outlet; the inner wall of the spray nozzle outlet is provided with a piezoelectric drive regulating device used for regulating the pore size of the spray nozzle outlet; and when electrified, the piezoelectric drive device generates deformation based on piezoelectric effect, so that the size of the pore size of the spray nozzle outlet is changed to adapt to printing ink with different particle sizes and viscosity specifications.

A lighting and flashing Christmas tree structure apparatus employs a low power control circuit to control the flashing sequence of LED light strings, capable of randomly altering distribution of the light strings with free choice of colors. A plug-free magnetic power system supplies electrical power to a cuboidal body where each of the four sides thereon has an electrical power receptacle free for user selection. With a LED device controller, a magnificent blinking is emitting from the LED light source to delight Christmas atmosphere. The electrical power offered by the present invention is limited below 24 V, which is within the safety range of the electrical properties code for body contact, therefore being free of safety concerns.

The invention discloses an RH furnace circulating pipe and a building method thereof. The cylindrical circulating pipe is built by alternately arranging a plurality of unit arch bricks obversely and inversely; each unit arch brick is piled by a long arch brick and a short arch brick; and a bayonet is arranged on the long arch brick, and is exactly positioned in the center of each unit arch brick. The RH furnace circulating pipe is improved on the traditional RH furnace circulating pipe, is designed according to the original style on integral appearance and size, replaces the conventional equilong flat building mode by adopting obversely and inversely building unequal arch brick combinations alternately, so that the paving seams among long arch bricks and short arch bricks are staggered, hot expansive force among alternate arch bricks is enhanced, and the problem of partial or whole flotation of the circulating pipe can be effectively solved.

The invention provides a throttling and flow dividing assembly and an air conditioner. The throttling and flow dividing assembly comprises a main pipe and a plurality of branch pipes; a plurality of flow dividing openings are formed in the side wall of the main pipe; the multiple branch pipes communicate with the multiple flow dividing openings in a one-to-one correspondence mode; and a throttlingdevice is arranged in any branch pipe. Through the technical scheme, liquid in the main pipe can evenly flow towards all the branch pipes through the corresponding flow dividing openings, and thus the good flow dividing effect is achieved; and each branch pipe is provided with the corresponding throttling device, and the liquid flowing into all the branch pipes is subjected to throttling and depressurizing through the throttling devices, so that the stability of the flow dividing and throttling processes of the liquid is improved.

The invention provides a miniature planar dual-frequency-band high precision satellite navigation antenna. The miniature planar dual-frequency-band high precision satellite navigation antenna includesa dielectric plate and a printed circuit base plate, wherein the dielectric plate includes a plurality of high frequency feeding points, a high frequency radiating surface, a plurality of low frequency feeding points, and a low frequency radiating surface; short circuit pins are distributed in the inner ring of the low frequency radiating surface; upward branch knots and downward branch knots aredistributed around the dielectric plate; the upward branch knots contact the printed circuit base plate; the downward branch knots are connected to the low frequency radiating surface; and coupling slits are formed between the upward branch knots and the downward branch knots. The miniature planar dual-frequency-band high precision satellite navigation antenna preferably solves the problems of antenna miniaturization, dual-frequency-band, antenna phase center elevation and the like, provides a design scheme for the miniature planar dual-frequency-band of the high precision satellite navigation antenna, effectively reduces the volume of the antenna, and effectively reduces the weight of the antenna at the same time.

The invention discloses a pipe-free pump which comprises a pump body and a front cover connected to the pump body. A stator and a rotor are arranged in the pump body. An impeller is arranged on a rotating shaft of the rotor. The pump body comprises a shell integrally molded around the profile of the stator in an injection molding manner, a mounting portion molded at the front end of the shell in a secondary injection molding manner and used for being connected with the front cover and a containing cavity for containing the rotor. A water guide cover is arranged in the mounting portion. A water inlet located in the center and water outlets in the side edges of the water inlet are formed in the water guide cover. The impeller is arranged in a water cavity of the water guide cover. The pipe-free pump is simple and reasonable in structure and compact and firm in connection and has the beneficial effects of being low in vibration noise, stable in assembling quality and the like, and a great amount of manpower cost and a great amount of raw material cost are saved.

The invention discloses an automotive panoramic sunroof structure which comprises window glass, a seal ring and a glass reinforcer, wherein the glass reinforcer is arranged below the panoramic sunroof glass, the upper surface of the glass reinforcer and the lower surface of the panoramic sunroof glass are bonded through glue, the outer side edge of the glass reinforcer is connected to the inner side of the seal ring, and the edge of the panoramic sunroof glass and the inner side of the seal ring are in sealed interference fitting. By fixing connecting the inner side edge of the seal ring and the outer side edge of the glass reinforcer, bonding the upper surface of the glass reinforcer to the lower surface of the panoramic sunroof glass through glue and performing sealed interference fitting on the inner side of the seal ring and the edge of the panoramic sunroof glass, and the seal ring is fixed to the edge of the panoramic sunroof glass, so that a hemming process on the edge of the panoramic sunroof glass is avoided, and the seal ring is prevented from being bonded to the panoramic sunroof glass integrally through glue, so that the assembling process is simplified, the assembling cost is lowered, and the cost of developing a hemming mould as the hemming process is required is also lowered.

The invention discloses a light emitting device which comprises a seat and a circuit board. The rectangular circuit board is mounted on the seat in a fastened manner. An embodiment of the invention further provides an indicator lamp which comprises the light emitting device. The indicator lamp and the light emitting device have the advantages that the circuit board of the light emitting device is mounted on the seat in the fastened manner, a worker only needs to directly fastening the assembled circuit board onto the seat, accordingly, fixing effects can be realized, manufacturing and assembling processes can be simplified, and requirements of automatic large-scale production can be met.

The invention relates to a car clutch parts, in particular relates to a car clutch body and the connection of Mandrel. A clutch of connecting body and Mandrel, Mandrel on a clutch body, referred to in the clutch and the structure of these lanes are trough-through bond and mandral link. The beneficial effects of this invention are: production assembly process is simple, low cost, the domestic use of existing technologies to produce the same performance alternative products, but also on improving the products and parts from foreign properties, and break the monopoly of foreign technology to promote the performance of domestic cars raise a great significance.

The invention discloses an LED (Light Emitting Diode) street lamp, which comprises a lamppost, a lamppost connecting rod and a lamp body, wherein the lamppost connecting rod comprises a built-in part embedded in the bottom of the lamp body, and a built-out part exposed to the lamp body, wherein a plurality of first strip-shaped cuts cut by a cutter are arranged on the side surface of the built-in part, and are punched by a punch into a plurality of first radiating holes and arched first radiating fins, and the lamp body comprises a lamp shell, a radiator, LED light source structures, light transmitting covers and fasteners; the lamp shell is made by glass fiber reinforced javascript:void(0);or a PC (Poly Carbonate) material, and the radiator is formed by transversely arranging and splicing a plurality of radiating fins, or by longitudinally overlapping a plurality of radiating fins; the two ends of radiating bases of the radiating fins tilt out and extend out of radiating surfaces, and a plurality of second radiating holes and second radiating fins are arranged on the radiating surfaces. The LED street lamp provided by the invention has the advantages of simple structure, realization of ideal radiating effect by using a self-structure design, reduction in production cost due to the glass fiber reinforced javascript:void(0);or PC lamp shell, various shapes, long servie life and the like.

The invention relates to the technical field of frequency converters, and discloses a structure of a single-tube IGBT module frequency converter. The structure comprises a bottom shell box body with aventilation opening and a middle shell box body assembly embedded into the bottom shell box body. The middle shell box body assembly comprises a middle shell box body, a radiator, a fan, a rectifierbridge, a capacitor plate with a capacitor, a driving plate and an aluminum substrate assembly. The fan of the middle shell box body assembly is arranged at the position, corresponding to the ventilation opening, of the middle shell box body. The middle shell box body is provided with a first partition plate and a second partition plate which are arranged in the air duct direction of the fan. Therectifier bridge, the capacitor plate and the driving plate are fixedly connected and mounted on the middle shell box body. The structure has the advantage that the middle shell box body is divided into three internal spaces through the first partition plate and the second partition plate, the aluminum substrate is located in a windless channel, and the capacitor and the radiator are located in the air duct for heat dissipation and are isolated from each other. Meanwhile, compared with a traditional mounting process, the positioning is accurate, the production and assembly process is simple, and the production efficiency is higher.

The invention discloses a vehicle-mounted multi-power-supply charging and discharging management board card and system, and relates to the technical field of power management, and a CAN transceiver, an MCU controller and three switching devices are integrated on the board card; one end of each of the first switching device and the second switching device is configured as a power input, and the other end is configured as a corresponding power output; two ends of the third switching device are respectively connected with the other ends of the first switching device and the second switching device; one end of the third switching device is configured as a generator input and a generator output, or the two ends of the third switching device are configured as the generator input and the generator output respectively; the first switching device, the second switching device and the third switching device are all controlled by the MCU controller; the CAN transceiver is configured to receive engine state information and send message information; and the MCU controller is configured to drive the switch-on and switch-off of each switch device according to the message information. The technical problem that large arrangement space is needed in multi-power-supply charging and discharging management can be solved.

The invention discloses a single part used for a fuel cell. The single part is a multi-phase and multi-component composite film, wherein the composite film comprises five components of polyvinyl alcohol, anion exchange resin, perfluorosulfonate resin, a transitional metal oxide and a transitional metal hydroxide, wherein the polyvinyl alcohol and perfluorosulfonate resin are mixed uniformly to form a film substrate; the anion exchange resin is embedded in the film substrate in a granular way; and the transitional metal oxide and the transitional metal hydroxide are uniformly dispersed in the film substrate in a nanoparticle form. The invention also discloses a preparation method for the single part; a gel film coating method is adopted; the preparation method is simple and easy to control, and suitable for large-scale application; the single part provided by the invention is assembled with a flow field, a clamping plate, a pipeline and other auxiliary parts to form the fuel cell; the fuel cell can realize power generation to the outside by pumping fuel and oxygen; and therefore, the single part can replace a positive electrode-electrolyte film-negative electrode sandwich structure of the conventional fuel cell, so that the battery and the production assembling process can be greatly simplified.

The novel trolley comprises a foldable trolley frame, a pushing handle and four roller assemblies, the pushing handle is installed on the rear portion of the trolley frame, the four roller assemblies are installed at the four corners of the trolley frame, the trolley frame comprises a frame body and a bottom frame assembly, the frame body is composed of a front wall assembly, a rear wall assembly and two side wall assemblies, the bottom frame assembly is located at the bottom of the frame body, and each side wall assembly comprises two connecting rods. Each group of connecting rods comprises long rods, a middle rod and a short rod, the lower end parts of the two long rods are rotationally connected to form a V shape with an upward opening, the upper end parts of the two long rods are rotationally connected with the upper end parts of the front wall assembly and the rear wall assembly respectively, and the upper end part of one middle rod is rotationally connected with the upper end part of one short rod to form a V shape with a downward opening; the lower end parts of the two middle rods are rotationally connected with the lower end parts of the front wall assembly and the rear wall assembly respectively, the upper sections of the two middle rods are riveted with the upper sections of the two long rods respectively, and the lower end parts of the two short rods are riveted with the lower sections of the two long rods respectively. The cart can be folded and stored, the structure is novel, the cloth bag and the frame of the cart are convenient and fast to disassemble and use.