230results about How to "Realize modular production" patented technology

The invention provides a modularized H-bridge cascade multilevel mutual-balance power electronic transformer. Power electronic devices are formed on the basis of IGBTs, the power electronic transformer can achieve four-quadrant controlled operation through an effective control strategy, two-way power flow control can be performed, a H-bridge cascade multilevel modularized structure is adopted for a main circuit, large-scale modularized production is facilitated, actual high-voltage class application can be performed, the harmonic content of output voltage is lower, the switching frequency of the power electronic devices is low, loss is lower, and the voltage-sharing problem is avoided. The system structure of the modularized H-bridge cascade multilevel mutual-balance power electronic transformer is in an AC/DC/AC mode, the high-voltage stage, the isolation stage and the low-voltage stage are achieved, and while the voltage transformation function, the isolation function, the energy transmission function and the like of a conventional transformer are completed, the power flow control and the function of control over the quality of electric energy can be completed.

The invention relates to truss type foldable units and foldable supporting arms formed by the same and particularly to an elastic hinge driving truss type foldable unit and a foldable supporting arm. The elastic hinge driving truss type foldable unit and the foldable supporting arm aim at solving the problems that the existing hinged supporting arm is complicated in driving mechanism, large in folding size and low in repeated unfolding accuracy and accordingly the structural weight is greatly increased and the unfolding reliability is low. The elastic hinge driving truss type foldable unit comprises an upper frame, a lower frame, N elastic hinge type folding arms and N groups of drawing cable assemblies; the upper frame and the lower frame are arranged in a parallel mode; N vertexes of the upper frame and N vertexes of the lower frame are arranged in an upper and lower corresponding mode; every two corresponding vertex angles formed between the upper frame and the lower frame are supported through the corresponding elastic hinge type folding arm and can be connected with each other in a rotating mode; every group of drawing cable assembly is arranged at the diagonal position in a rectangular plane which is formed by the upper frame, the lower frame and the two corresponding adjacent elastic hinge type folding arms. The elastic hinge driving truss type foldable unit and the foldable supporting arm are applied to a satellite, a space station and a space probe.

The invention discloses a plate heat tube type solar photovoltaic-photothermal composite heat collector and a production process thereof. The plate heat tube type solar photovoltaic-photothermal composite heat collector comprises a glass top cover plate (1), an air interlayer (5), a photovoltaic-photothermal composite component (10), a heat insulating layer (6) and a protective back plate (4), which are sequentially arranged from top to bottom, wherein the heat insulating layer (6) is in adhesive connection with the photovoltaic-photothermal composite component (10). The photovoltaic-photothermal composite component (10) is formed by highly integrating a plate heat tube evaporation section 1061 and a photovoltaic cell 103 by means of lamination process, a condensation section (1062) is connected with a heat collection heat exchanger (3) through a sleeve (7), all parts are fixed into a frame (2), and a circulating water inlet pipe (8) and a circulating water outlet pipe (9) which are respectively connected to the heat collection heat exchanger (3) are arranged on the lateral sides of the frame (2). By means of the plate heat tube type solar photovoltaic-photothermal composite heat collector, the temperature of the photovoltaic cell can be decreased greatly, the photovoltaic cell can be cooled more quickly and evenly, hot water can be outputted while electric energy is outputted, and comprehensive solar utilization efficiency is greatly improved. Further, the plate heat tube type solar photovoltaic-photothermal composite heat collector is simple in manufacturing process, efficient and feasible.

The invention relates to a combination sideboard of seamless installation, which is a combination composed of a plurality of independent casings arranged in sequence, characterized in that a face plate with the adjustable width is arranged between the adjacent casings or at the outer side of the combination, the face plate comprises a skin layer with decorating surface and an inner layer with decorating surface, the skin layer and the inner layer are connected in a stacking way through a translational control unit which is used for applying the two layers into a whole and controlling the corresponding sliding direction of the two layers. By using the face plate with the adjustable width of the invention, the combination furniture can be produced and manufactured without considering the real size of the site exactly and any processing procedure on site, thus overcoming the defects that the pollution to the periphery and the site is caused by the secondary processing. Therefore, the furniture manufacture can achieve the building block design and the building block manufacture in real significance.

The invention discloses an electric rotation mechanism for a seat. The mechanism comprises a rotation support, a rotation disc, a fixing disc, a press disc, an upper ball assembly, a lower ball assembly, a driving motor assembly and a semi-circular rack. The driving motor assembly is installed on the fixing disc and comprises a driving gear; the semi-circular rack is installed on the rotation support, the circle center of the semi-circular rack coincides with the rotation center of the rotation support, and the semi-circular rack is meshed with the driving gear; the driving gear in the drivingmotor assembly drives the rotation support to rotate back and forth within 0-180 degrees through the semi-circular rack. According to the electric rotation mechanism for the seat, just through single-grade transmission of the driving motor assembly, the driving gear and the semi-circular rack, the seat can rotate back and forth within 0-180 degrees, and the mechanism has the advantage of small occupation space. Meanwhile, the situation is avoided that a wire harness of the seat rotates without limit and is twisted off.

The invention provides a double-layer annular truss antenna mechanism based on passive drive and relates to double-layer annular truss type expandable antenna mechanisms. The problems that an existing large-caliber single-ring annular truss antenna is small in rigidity, the use rigidity requirement can not be met, an existing annular truss antenna mechanism is complex in drive structure and large in weight, inhaul cables are prone to be twisted after being used for unfolding the mechanism, and the unfolding reliability is low are solved. The double-layer annular truss antenna mechanism comprises multiple inner and outer truss foldable unit modules, multiple inner transition folding assemblies and multiple outer transition folding assemblies. Each inner and outer truss foldable unit module comprises an inner folding unit module, an outer folding unit module and two inner and outer connection truss assemblies. Inner supporting vertical rods and outer supporting vertical rods which are opposite are connected through the inner and outer connection truss assemblies. After the inner and outer truss foldable unit modules are unfolded, an inner and outer double-layer annular truss polyhedron is formed. The double-layer annular truss antenna mechanism is used for a satellite, a space station and a space probe.

The invention discloses a deepwater net cage with a front streamline floating pipe outer frame. The deepwater net cage comprises a floating pipe frame, netting and a mooring system, the floating pipe frame is provided with the front streamline floating pipe outer frame, the front streamline floating pipe outer frame is composed of a front connecting piece, two outwards-protruding arc-shaped main floating pipes, two bent pipe connecting pieces and a back main floating pipe, the front ends of the two outwards-protruding arc-shaped main floating pipes are connected through the front connecting piece, and the back ends of the two outwards-protruding arc-shaped main floating pipes are connected with the two ends of the back main floating pipe respectively through the two bent pipe connecting pieces; in addition, a box tying point is arranged on the front connecting piece. The mooring system comprises an anchor, an anchor rope and an anchor rope weight, the anchor is sunk into the seabed, the lower end of the anchor rope is connected with the anchor, the upper end of the anchor rope is connected with the box tying point, the anchor rope weight is tied and hung on the anchor rope, and the length of the part, located between a tying and hanging point of the anchor rope weight and the upper end of the anchor rope, of the anchor rope approximates the lowest water level water depth of the position of the anchor.

The invention provides an overhead type rectangular wet electric precipitator. The main body section of the electric precipitator is of a rectangular cylindrical structure and comprises a spray washing system, an anode module, a cathode module, a spray humidification system and a uniform distribution device; the electric precipitator is also provided with a shell self-supporting structure which comprises an inner column, an outer column, a main truss, an auxiliary truss and an annular truss; the inner column provided with the main truss is adhered to the outer wall of an absorption tower, and the top end of the main truss is used for supporting the wet electric precipitator; the main truss and the auxiliary truss are spaced from each other and are connected mutually to transfer load; the top end of the outer column provided with the auxiliary truss is used for supporting the wet electric precipitator; the annular truss is attached to the outer wall of the absorption tower; the inner column is arranged on the annular truss. Uniform partition in the precipitator can be realized, the cathode system and the anode system are produced in a modularized manner; the self-supporting structure does not need to occupy land and has no influence on the mounting and the overhauling of the original absorption tower; the effective dust collection area is increased, and the dust removal efficiency is improved.

The invention provides an improved main frame of an offshore net cage. The main frame consists of a floating pipe, and is characterized in that the floating pipe is a hollow elliptical pipe with a horizontal long axis and is prepared by processing a round pipe with relative draught of 10%-20%, and the relative draught refers to the percentage of the ratio of the amount of draught to the blank diameter before flattening. The improved main frame for the offshore net cage is reasonable in structure, high in operability, saved in cost, steady in connection, and improved in stability, anti-typhoon capability and risk prevention capability; and the main frame is mainly used for improving the strength and improving the wind and wave prevention level on the premise of not changing the overall size of an existing main frame, promoting offshore net cage culture to deep open sea areas, and realizing safe culture production in open sea areas with water depth of 20-60m.

The invention discloses a method for purifying air. The method comprises the following steps of: making the air pass through a first-stage high-voltage electrostatic field for exposing genetic substances contained in harmful substances in the air in an electric field directly; introducing the air treated by using the first-stage electric field into a second-stage high-voltage pulse electric field; and striking off molecular bonds of the genetic substances to change genetic information by using high-energy particles formed by high-voltage pulse to crack and kill harmful substances so as to fulfill the aim of purifying the air. The method is on the basis of a cracking principle without generating an electron beam, strong electromagnetism or new photoelectric pollution, so the method is safeon an environment and a human body. Later maintenance is relatively simple; and maintenance cost is low. Simultaneously various microorganisms, bacteria and viruses can be killed, so the air can be purified completely. In conclusion, the method has the characteristics of low cost, long purification maintaining time, no harm or side effect on the human body, so the method can be performed when people are around.

The invention relates to the technical field of motors, and especially relates to a magnetic suspended rotor support system, a magnetic suspension motor and a dust collector provided with the motor. The magnetic suspended rotor support system includes a shell, a radial displacement sensor, a radial magnetic bearing and an axial magnetic bearing; the radial displacement sensor, the radial magnetic bearing and the axial magnetic bearing are all coaxially arranged in the shell; the shell is provided with an opening at one end in the direction of arrangement of the radial displacement sensor, the radial magnetic bearing and the axial magnetic bearing to receive a motor stator core; and the other end of the shell is provided with a shaft hole for a rotor shaft to extend to the outside. The structure is compact, and the invention is applicable to production of miniature motors. The modularization production of the motor is realized; the quantity of parts is relatively small in the modularization production; the coaxiality of the parts in the magnetic suspended rotor support system can be firstly guaranteed; the raise of the coaxiality precision of the whole motor can be facilitated; the production efficiency can be raised; and the cost can be reduced.

The invention provides a multi-joint heavy load mechanical arm driven by single-blade hydraulic swing oil cylinders. The mechanical arm comprises a base module, a waist joint module, a shoulder jointmodule, a wrist joint module, a large arm and a small arm, wherein the large arm and the small arm are arranged between the modules. The mechanical arm is characterized in that the waist joint module,the shoulder joint module and the wrist joint module are each composed of two perpendicularly-arranged single-blade hydraulic swing oil cylinders. Every two adjacent modules are connected in series and fixed through a flange plate and a bolt, and large torque is transferred in a hydraulic drive mode. The waist joint module and the base module are in matched connection, the waist joint module comprises a J1 oil cylinder and a J2 oil cylinder which are perpendicularly arranged, the shoulder joint module comprises a J3 oil cylinder and a J4 oil cylinder which are perpendicularly arranged, and the wrist joint module comprises a J5 oil cylinder and a J6 oil cylinder which are perpendicularly arranged. The modules in the mechanical arm can be produced in batch, the production cost is reduced, the production efficiency is improved, the overall structure is simple and compact, and disassembly, assembly, overhaul and maintenance are convenient.

A cable-stayed stretch-draw annular expandable antenna mechanism relates to an expandable antenna mechanism and solves the problem that an existing annular truss mechanism has a decrease in stiffnesswith an increase in the diameter of an antenna, cannot meet the stiffness requirements and has a complicated driving mechanism, a large weight and low expansion reliability. The cable-stayed stretch-draw annular expandable antenna mechanism comprises a plurality of cable-stayed stretch-draw expandable unit modules. Each of the cable-stayed stretch-draw expandable unit modules comprises a first expandable unit module and a second expandable unit module which are connected together. The plurality of first expandable unit module and the plurality of second expandable unit modules are arranged alternately and connected together to form a cable-stayed stretch-draw annular truss after expanded. The cable-stayed stretch-draw annular expandable antenna mechanism is good in reliability, compact instructure, light in weight, easy to drive, high in stiffness after fully expanded, meets the requirements for a large-diameter antenna, and is applied to a communication satellite, a space station anda space detector.

The invention discloses a prefabricated concrete column and steel beam joint. The joint comprises a prefabricated joint unit, a prefabricated concrete column and a prefabricated steel beam. The prefabricated concrete column comprises an upper column body and a lower column body, the prefabricated joint unit comprises a box body and a short steel beam, the short steel beam comprises a cross-shaped end and an extending end, the cross-shaped end is located in the box body and is in cross connection, the extending end penetrates out of the box body, and the extending end is connected with the prefabricated steel beam; the lower portion of the box body is provided with a grouting hole, the prefabricated joint unit is arranged between the upper column body and the lower column body, and the prefabricated joint unit is connected between the upper column body and the lower column body through grouting. According to the prefabricated concrete column and the steel beam joint, a prefabricated part is divided into the prefabricated concrete column, the prefabricated steel beam and the prefabricated joint unit, all the parts can be prefabricated in a prefabricating factory, the construction progress can be accelerated, and the construction quality can be improved; in addition, the size of the divided prefabricated part becomes small, and the problems that an existing prefabricated part is large in size and difficult to transport and assemble are solved.

The invention discloses a modular combined wardrobe. The modular combined wardrobe comprises a combined wardrobe body and fixing components, wherein the combined wardrobe body comprises a first base cabinet, a second base cabinet, an intermediate cabinet, a first top cabinet, a second top cabinet and a first lateral cabinet, an interval is arranged between the first base cabinet and the second base cabinet, the intermediate cabinet spans over the first base cabinet an the second base cabinet, intervals are respectively arranged at a left side and a right side of the intermediate cabinet, the first top cabinet and the second top cabinet are respectively arranged on a top face of the intermediate cabinet, an interval is arranged between the first top cabinet and the second top cabinet, the intermediate cabinet is movably connected with the first base cabinet, the second base cabinet, the first top cabinet and the second top cabinet respectively, the first lateral cabinet is arranged at the outer side of the first base cabinet, and is fixedly connected with the first base cabinet, and the fixing components comprise a first high lateral plate, a second high lateral plate, a top line, a top line reinforcing plate and a closing plate. According to the modular combined wardrobe disclosed by the invention, respectively modular components can be prefabricated by a manufacturer, and are then assembled on the spot, width and dimension of a cabinet body can be adjusted to meet requirements for the width and dimension of the on-the-spot environment, the modular combined wardrobe is suitable for standardized production, and space in the wardrobe can also be adjusted as required.