35results about How to "No polarization" patented technology

The invention discloses a vibration loudspeaker and relates to the technical field of electroacoustic products. The vibration loudspeaker comprises a shell, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are contained in the shell. An elastic sheet is arranged on an inner side wall of the shell. The magnetic circuit system comprises a basin rack. A magnet and a spring washer are sequentially arranged in the basin rack. A magnetic gap is formed between the magnet and the spring washer and the side wall of the basin rack. A notch is formed in the side wall of the basin rack. The elastic sheet comprises an edge portion fixed on the shell. An annular middle portion is arranged at the inner side of the edge portion. The edge portion is connected with the middle portion through an elastic arm. A side wall penetrates between the edge portion and the middle portion, so that the middle portion is located in the magnetic gap. A balance weight matched with a structure of the magnetic circuit system is arranged on the middle portion. The vibration loudspeaker solves the problems that a vibration loudspeaker in the prior art is large in size and can not satisfy the requirement for portable electronic terminal microminiaturization development. The vibration loudspeaker has the advantages of being small in size, stable in work performance, capable of fully satisfying the requirement for portable electronic terminal microminiaturization development and the like.

The invention discloses a mobile phone plastic lens manufacturing method and a device. The device comprises a female die cavity, a male die cavity and a controller. The female die cavity is provided with a first upper heating unit, a second upper heating unit and a third upper heating unit. The male die cavity is provided with a first lower heating unit, a second lower heating unit and a third lower heating unit. The first upper heating unit, the second upper heating unit and the third upper heating unit are disposed corresponding to the first lower heating unit, the second lower heating unit and the third lower heating unit respectively. The surface of the female die cavity comprises a first inclined plane, a female die cavity plane and a second inclined plane. The first inclined plane, the female die cavity plane and the second inclined plane are connected in order. The surface of the male die cavity is provided with a first bulge and a second bulge. When the female die cavity and the male die cavity are closed together, the first bulge is outside the first inclined plane, and the second bulge is outside the second inclined plane. According to the method and the device provided by the invention, the mobile phone plastic lens is easy to manufacture, and the manufactured mobile phone plastic lens has high quality.

The invention relates to the technical field of the non-metallic ore deironing equipment and in particular to a built-in vibration magnetic separator. The built-in vibration magnetic separator comprises a hollow housing. An exhaust pipe is installed above the housing. The top of the housing is provided with a feeding pipe and a water inlet pipe. The interior of the housing is successively provided with a sieving net, an upper magnetic pole with a plurality of through holes, a medium box, a medium box base, and a lower magnetic pole from top to bottom. The exterior of the housing is provided with an exciting coil within the upper and lower magnetic pole area. The middle part of the lower magnetic pole is provided with a slag discharge hole. The built-in vibration magnetic separator is characterized in that a vibration motor is further installed above the housing. The vibration motor is connected with a vibration transmission shaft. The vibration transmission shaft successively passes through the sieving net, the upper magnetic pole, and the medium box. The tail end of the vibration transmission shaft is fixed on the medium box base. The sum of the heights of the medium box and the medium box base is less than the distance between the upper and lower magnetic poles, so that the medium box can be upwards and downwards vibrated between the upper and lower magnetic poles. A four-way pipeline communicated with the slag discharge hole is installed below the lower magnetic pole. The built-in vibration magnetic separator is suitable for improving the current deironing equipment.

The invention discloses a public voltage driving method. The method comprises the steps that the picture state of a current display picture is detected according to a preset sampling period, and a control signal is generated according to the picture state of the current display picture; and alternating current public voltage or direct current public voltage is generated according to the control signal. The invention further provides a public voltage driving device and a display device. The picture state of the current display picture is detected according to the preset sampling period. If thecurrent display picture is a dynamic picture, alternating current and direct current public voltage is generated according to the control signal. If the current display picture is a static picture, alternating current public voltage is generated according to the control signal to maintain voltage balance between liquid crystal positive and negative electrodes. Liquid crystal polarization is prevented, and the phenomenon of image-retention is improved.

The invention discloses a concave electrode type flip chip structure and a manufacturing method. In the concave electrode type flip chip structure, since the thickness of the first electrode structure and the second electrode structure is smaller than that of the isolation layer Therefore, in the welding process, the soldering agent is filled to the same surface as the isolation layer, thereby improving the smoothness of the welding surface, and solving the problem that the small-chip LED chip is in the welding process with the substrate or bracket. The phenomenon of inclination or unevenness appears, so that the light-emitting surface of the LED chip is flat, and the light-emitting direction is consistent. On the display and visualization products, the effect of consistent light-emitting direction can be achieved, and there will be no polarization phenomenon at a wide viewing angle. In terms of the color mixing effect of the display, the uniformity of color mixing is effectively improved due to the reduced inclination.

The invention provides a lithium metal battery negative electrode framework material and a preparation method thereof and a lithium metal battery negative electrode. The method includes: mixing soybean products and KOH solution, ultrasonication; freezing the obtained precursor solution with liquid nitrogen and then vacuum freeze-drying to obtain Layered precursor; finally activated and carbonized at 700-800°C to obtain the negative electrode framework material for lithium metal batteries. The method adopts soybean product biomass, and through one-step activation and carbonization, the method is simple and easy, and the raw materials are widely available; and as the negative electrode material of the lithium metal battery, the cycle stability of the battery can be improved. It has a high surface area, a narrow pore size distribution, and a large number. The specific surface area of ​​the lithium metal battery anode skeleton material is as high as 3134m 2 g ‑1 The mesopores are 2.2-2.8nm, and the micropores are concentrated at 0.8nm and 1.4nm; after dozens of cycles of charging and discharging, the lithium metal battery still maintains a stable charging and discharging voltage, and there is almost no polarization.

The invention belongs to the field of ocean base equipment settlement measuring technologies and relates to an ocean base equipment settlement measuring device and method. Designed monitoring equipment can effectively monitor the settlement of ocean base equipment and can effectively distinguish self-weight settlement of the equipment from a displacement change caused by erosion sedimentation. Themeasuring device and method have quite important significance for understanding of the equipment settlement process, safety control of ocean engineering and accuracy judgment on seabed monitoring equipment data. An electrode in use is a solid annular reference electrode with high stability, and power supply to the electrode is not needed. A feeler lever is simple in structure and reasonable in design and can be matched with the ocean base equipment in use. The monitoring method is clear, and monitoring precision is high.

An anti-vibration laser lamp comprises a light path board, wherein a green light laser set, a red light laser set, a blue light laser set, a galvanometer set, a red-reflecting green-pervious lens set and a blue-reflecting red-pervious green-pervious lens set are arranged on the light path board. A first spring is arranged between a first installation plate used for installing the green light laser set and the light path board, a second spring is disposed between a second installation plate used for installing the red light laser set and the light path board, a third spring is arranged between a third installation plate used for installing the blue light laser device and the light path board, and a fourth spring is arranged between a fourth installation plate used for installing an upper galvanometer, a lower galvanometer and a galvanometer base and the light path board. When the laser lamp bears vibration impact from the outside, the first spring, the second spring, the third spring and the fourth springs can buffer the vibration impact borne by the laser lamp, and the aim of vibration absorbing of the laser lamp is achieved, so that polarization of lasers will not occur, the light integration effect of the lasers is guaranteed, and the problem that polarization of a light path is caused by the fact that an existing laser lamp bears outside vibration is solved.

The invention provides a washing machine achieving separate washing. The washing machine comprises a box and a first automatic washing system and a second automatic washing system which are arranged in the box; the first automatic washing system and the second automatic washing system are both a full-automatic roller washing system, and the axis of the first automatic washing system and the axis of the second automatic washing system are located on the same straight line. The first automatic washing system and the second automatic washing system are arranged in the box, and a user can choose to start one of the automatic washing systems or start the two automatic washing systems simultaneously as needed; the axis of the first automatic washing system and the axis of the second automatic washing system are located on the same straight line, therefore, vibration generated by the two automatic washing systems and force applied to the box by the two automatic washing systems on the same horizontal plane in the washing process are similar, the force borne by the box on the same horizontal plane is basically similar, polarization cannot occur, and the stability of the washing machine achieving separate washing in the washing process is improved.