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158results about How to "Simple manufacturing process" patented technology

Device and method for realizing conversion between metal rectangular waveguides and microstrip lines

The invention discloses a method for realizing conversion between metal rectangular waveguides and microstrip lines. The device comprises a waveguide converter and a microstrip line converter connected with the waveguide converter. The waveguide converter comprises a waveguide section and a waveguide transition section, wherein the waveguide section comprises a wide edge and a narrow edge; the waveguide transition section is formed by retracting the narrow edge of the waveguide section to a connecting surface between the waveguide converter and the microstrip line converter in a linear lowering way; and a dielectric body is uniformly filled into the wide edge of the waveguide section. The microstrip converter comprises a baseband board and the microstrip lines, wherein the width of the baseband board is the same as that of the metal rectangular waveguide; and the microstrip lines are arranged on the baseband board. Electromagnetic waves are transmitted from the waveguide converter to the microstrip line converter to realize effective conversion between waveguide propagation and microstrip line propagation. The device only relates to a linear planar structure, is simply structure and simple and convenient to manufacture; moreover, a frequency-sensitive geometrical structure is unrelated, and the working frequency range of the device is only limited by own working frequency range of the waveguide, so the device has the characteristic of wideband.
Owner:UNIV OF SCI & TECH OF CHINA

Concentric circle type metal body surface electrode for bioelectrical impedance detection technology and manufacturing method thereof

InactiveCN102090889ASimple manufacturing processEquipment requirements are not high
The invention discloses a concentric circle type metal body surface electrode for a bioelectrical impedance detection technology and a manufacturing method thereof. The method comprises the following steps of: manufacturing metal ring and wafer materials of different sizes by using a mechanical cutting method, and then cleaning the surfaces of the materials to remove dirt on the surfaces; preparing acidic copper chloride etching solution consisting of hydrochloric acid, sodium chloride and copper chloride, and forming a series of micro structures on the surface of the metal ring by using an etching processing method to enlarge the surface area of the electrode; and after the etched metal ring and the wafer are cleaned and dried, integrally connecting the metal ring and the wafer by using non-woven fabric or foam with viscosity to form a concentric circle type double-electrode structure, welding lead buckles and finally obtaining excitation and measurement electrode integrated concentric circle type metal body surface electrode. The method has simple manufacturing process, high production efficiency and low cost, and can effectively reduce the contact impedance of the metal body surface electrode and the human skin and improve the measurement precision of the bioelectrical impedance detection technology.
Owner:SUN YAT SEN UNIV

Cavity filter structure mathematical response model and cavity filter for mobile communication network thereof

The invention relates to a cavity filter used for a microwave communicating system. Aiming at solving the technical problems of disunited structure size and complex structure of the existing cavity filter manufactured by a Chebyshev mathematics response model, the invention provides a mathematics response model of a cavity filter structure and a cavity filter used for a movable communicating network; the mathematics response model thereof adopts an isoparametric element lowpass prototype as the designed mathematics response model of the cavity filter structure and leads the cavity filter structure obtained according to the mathematics response model to respectively have united and consistent structure sizes on the resonance cavity, resonance rod, coupling adjusting rod and resonance cavity clapboard thereof, thus leading the product manufacturing and processing technique of the cavity filter to be greatly simplified; simultaneously the assembled cavity filter is easier to be debugged and is suitable for batch production. Another advantage of the technical scheme is as follows: under the condition of meeting stopband attenuation, the central loss of a benchmark passband is reduced to the minimum; moreover, the unloaded Q value of the cavity can be guaranteed to be maximal and the insertion loss of the cavity filter is minimal.
Owner:丹东华讯电子有限公司

Integral molding process for profile

The invention discloses an integral molding process for a profile. The integral molding process for the profile comprises the steps of 1) cutting: cutting a raw material according to needed length; 2) small hole punching: punching a small molding hole which can facilitate strip-shaped profile bending at a position which is required to be bent; 3) bending; 4) large hole finish cutting. The integral molding process for the profile disclosed by the invention has the advantages that the process is simple, the efficiency is high and metallic frames with high structural stability can be quickly manufactured; since the vertical parts of the strip-shaped profile are not fully cut off when the small molding hole is punched but certain distance is reserved to form a reinforcing connecting part, after the profile is bent, the vertical parts on the two sides of the small molding hole can be connected to form an integrated connecting structure without using a welding process or other connecting parts, the overall structural strength is effectively increased, the stability is good, the appearance is attractive, the welding process is not used, and not only can the production process of the traditional metallic frames be effectively simplified and can the production efficiency be improved, but also the saving of energy and production raw materials can be facilitated and the production cost is decreased.
Owner:东莞市尚准五金制品有限公司

Wind-guiding structure for wall type air-conditioner indoor set

The invention relates to an air guide structure for indoor unit of wall-mounted air-conditioner , comprising a motor (1) and a plurality of shutters (7); wherein, an output shaft of the motor (1) is connected with a connecting rod (2) of the motor. The both ends of the motor connecting rod (2) are connected with the connecting rod of the front shutter (A) and the connecting rod of the back shutter (B), respectively. A plurality of shutters (7) are connected with the connecting rod of the front shutter (A) and the connecting rod of the back shutter (B) by rotating shafts, respectively. The connecting rods of the front shutter (A) are composed of a right-front shutter connecting nod (4) and a left-front connecting nod (6); the connecting rods of the back shutter (B) are composed of a right-back shutter connecting nod (5) and a left-back shutter connecting nod (8). The left-front connecting nod (6) and the left-back shutter connecting nod (8) are connected with the right-front shutter connecting nod (4) and the right-back shutter connecting nod (5), respectively. A plurality of shutters (7) are connected with the left-front connecting nod (6), the left-back shutter connecting nod (8), the right-front shutter connecting nod (4) and theright-back shutter connecting nod (5) by rotating shafts, respectively, and are connected into two groups. The invention has the advantages of simple manufacture technology, quick-assembly, reliable performance and low maintenance costs, even left-right adjustment of air flow in horizontal direction of air conditioner.
Owner:GUANGDONG MIDEA ELECTRIC APPLIANCES CO LTD
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