34results about How to "Prevent narrowing" patented technology

A linear compressor is provided. The linear compressor may include a frame coupled to a cylinder, a gas hole defined in the frame, and a gas pocket that communicates with the gas hole and transfers a refrigerant gas to the cylinder.

The invention discloses a semiconductor structure and a forming method thereof. The method comprises the steps that: an initial substrate is provided, wherein the initial substrate comprises a first sacrificial film, a first channel film, a second sacrificial film, a second channel film and a third sacrificial film which are sequentially stacked from bottom to top; the third sacrificial film and the second channel film are etched until the surface of the second sacrificial film is exposed to form a third sacrificial layer and a second channel layer; a first protection layer is formed on the side wall of the second channel layer; the second sacrificial film and the first channel film are etched until the surface of the first sacrificial film is exposed to form a second sacrificial layer and a first channel layer; a second protection layer is formed on the side wall of the second channel layer, the side wall of the second sacrificial layer and the side wall of the first channel layer; and the first sacrificial film and a part of the initial substrate are etched to enable the first sacrificial film to form a first sacrificial layer. According to the semiconductor structure and the forming method thereof disclosed by the invention, the CFET manufacturing process is improved, and the performance of the semiconductor structure is improved.

The invention provides a stacked battery. The stacked battery comprises a polar plate group, pressure frames, tabs and a shell, the pressure frames wrap the polar plate group and are connected into awhole through buckles, so that the polar plate group is mounted into a whole by utilizing the pressure frames, the situation that the active substances are softened and peeled off due to shaking amongpolar plates in the use process of the polar plate group is reduced, and the shell is mounted outside the pressure frames, and further the pressure frames or the polar plate group can be further insulated through the shell and are prevented from being damaged by the outside in the use process of the battery. The polar plate group can be fixed through the pressure frames, so that the distance between the positive plates and the negative plates can be unified, the condition that conductive channels become narrower due to thickening the polar plate group caused by the excessive positive plates and negative plates is avoided, and each conductive channel in the electrode plate can ensure the effective utilization rate of active substances of the battery, and the service life of the battery canbe prolonged.

A sipe is formed in a block provided in a tread surface, wide portions extending in a sipe length direction are formed in each of a kick-out side and a step-in side of the sipe, and a total of heights of the wide portions in the kick-out side of the sipe is made larger than a total of heights of the wide portions in the step-in side of the sipe.

The present invention provides a stacked battery, which includes a pole plate group, a pressure frame, a tab and a casing. By wrapping the pressure frame outside the pole plate group, the pressure frame is connected as a whole through buckles, so that the use of the pressure frame to The pole plate group is installed as a whole to reduce the softening and peeling of the active material caused by shaking between the pole plates during the use of the pole plate group. The shell is installed outside the pressure frame to further realize that the battery can pass through the shell during the use of the battery. Insulate and block the outside world from causing damage to the pressure frame or the plate group; the plate group can be fixed through the pressure frame, so that the distance between the positive plate and the negative plate can be unified, and the positive plate and the negative plate can be avoided due to overheating. It often causes the conductive channel narrowing caused by the thickening of the electrode plate group, thereby realizing that each conductive channel in the electrode plate can ensure the effective utilization rate of the active material of the battery; and the service life of the battery can be improved.

A printed circuit board (50) includes a chip-shaped printed antenna (10) having an open end formed by at least two antenna conductors arranged separately from each other. As shown by a hatched portion, on the printed circuit board (50), a ground required by one or more other modules is arranged so as to surround a region around the printed antenna (10) excluding a certain region. Thus, on the printed circuit board (50), the radiation electric field does not become a dipole mode but is formed to discharge in one direction in a balloon shape as shown by a broken line.

The invention provides a water heater comprising: a container (20) equipped with a burner (3) with a downwardly facing combustion surface; a fan housing (10) containing primary air for combustion and fuel gas The fan (10a) that supplies the mixed gas to the burner; the annular gasket (6), which connects the first connection on the downstream end side of the first flow path (1) that forms the downstream side flow path of the fan casing (10) The end face (13) is connected in an airtight state with the second connecting end face (23) on the upstream end side of the second flow path (2) forming the upstream side flow path of the container (20); and the one-way valve (5), which It is installed near the upstream end in the second flow path (2).

The invention discloses a truss shearing mechanism of a triangular truss production line. The truss shearing mechanism of the triangular truss production line structurally comprises an upper shearing device and a lower shearing device. According to the upper shearing device, two upper shearing arms are hinged to an upper hinged shaft, upper scissors are installed at the corresponding ends of the upper shearing arms, the other end of each upper shearing arm is hinged to a crankshaft driving mechanism, and the crankshaft driving mechanism drives the two upper shearing arms to shear an upper spiral rib. The lower shearing device comprises two lower shearing arms, wherein the lower shearing arms are hinged to a first lower hinged shaft and a second lower hinged shaft respectively, lower scissors are installed at the corresponding ends of the lower shearing arms, the other ends of the lower shearing arms are hinged to the two sides of the crankshaft driving mechanism, and the crankshaft driving mechanism drives the two lower shearing arms to shear a lower spiral rib. The truss shearing mechanism of the triangular truss production line has the advantages that power is low, impact on a power grid is low, the structure is simple, and the cost is low; the phenomenon that the two pairs of scissors collide with each other is avoided, the service life is long, and the quality of a sheared truss is improved; a cut of the lower spiral rib is flat after the lower spiral rib is sheared, and the phenomenon that due to the fact that the width of the inner side of the triangular truss becomes narrower, the defect of deformation of the triangular truss is avoided.

A gate drive unit circuit, a gate drive circuit and a liquid crystal display apparatus. The gate drive unit circuit comprises a pull-up control module (1), a pull-up module (2), a holding control node generation module (3), a pull-up control node holding module (4) and an output node holding module (5), wherein the holding control node generation module (3) is used for generating, under the control of a forward scanning control signal (U2D) and a reverse scanning control signal (D2U), that are opposite each other in phase, a holding control signal to control a holding control node (netBn) of the current stage, so that after scanning signals are output during forward scanning and reverse scanning, the first signal pulse width of the holding control node (netBn) of the present stage is the same as the pre-set width. The first pulse width of a holding control node (netBn) can be prevented from being reduced, such that the pull-up control node holding module (4) can immediately carry out intermittent low-potential holding on a pull-up control node (netAn), thus improving the reliability of a circuit.

The invention provides a stator assembly and a motor with the stator assembly. The stator assembly includes a stator bracket and a stator core installed on the stator bracket, and the stator bracket includes a support shroud, formed between the support shroud of the stator bracket and the radial side surface of the stator core. There is a first axial airflow passage, and the stator assembly further includes an airflow conveying unit for supplying the first cold airflow to the first axial airflow passage, so that the cold airflow flows in the axial direction. According to the embodiment of the present invention, during the operation of the motor, a cold airflow can be introduced to the other side of the stator opposite to the air gap, so that both radial sides of the stator can be cooled at the same time, reducing the expansion and deformation of the stator core and preventing The air gap is narrowed, and at the same time, it prevents the stator from high-temperature baking of the magnetic poles, protects the magnetic poles, and prolongs the service life of the motor.

The invention discloses a backlight module and a display device. The backlight module comprises a back plate and a rubber frame. The back plate comprises a bottom plate and side walls located on the edge of the bottom plate. The rubber frame is arranged on the side walls and provided with a first supporting part for arranging a display panel. A second supporting part is arranged on the side walls. A groove for arranging an optical film is formed between the first supporting part and the second supporting part. The set distance between the bottom of the groove and the valid display area of the display panel is larger than the set distance between the bottom of the display panel and the bottom of the optical film. By means of the backlight module and the display device, the problem that in a narrow frame display device, edge bright lines are not good can be solved.

The invention discloses a hemangioma stent weaving process, and relates to the technical field of medical instrument production. The hemangioma stent weaving process specifically comprises a shaping assembly matched with a stent; the shaping assembly is composed of a first shaping section, a plurality of transition shaping sections and a second shaping section; the transition shaping sections are distributed between the first shaping section and the second shaping section; and circular holes are formed in the first shaping section, the transition shaping sections and the second shaping section, and a shaping tightening latch is inserted into the circular holes. When the stent is unfolded in a blood vessel, the extrusion effect on the protruding portion of a focus is reduced, damage to vascular wall tissue can be reduced, the stent and the blood vessel can be kept fixed, the front-end blood vessel and the rear-end blood vessel far away from the focus are slightly expanded, and the narrowing phenomenon is effectively avoided; and the middle-layer portion of the stent is coated with an inert film, protrusions at lesion positions are prevented from penetrating through net gaps, and the stenosis phenomenon caused by regrowth of lesions is avoided.

The invention discloses a method for controlling the head width of hot-rolled finish-rolled steel strip to prevent narrowing, which belongs to the technical field of hot-rolled steel strip production, and includes the following steps: S1, judging whether the looper contacts the strip steel; S2, according to the The amount deviation compensates the speed of the upstream rolling mill; S3, judging whether the looper is in the state of drawing steel; S4, in the state of drawing steel, modifying the control parameters, so that the strip steel can quickly and stably leave the state of drawing steel. Firstly, according to the actual amount of looper when the looper lifts the sleeve to contact the strip steel, the speed of the main drive is quickly compensated, and then after the loop amount control is put in, the possible state of the steel drawing is judged, and the corresponding control parameters are modified to make the looper It can quickly get out of the steel drawing state. The present invention intervenes in real time with the additional amount of speed and the adjustment rate of the main transmission speed, thereby avoiding to the greatest extent the narrowing phenomenon of the strip steel caused by the actual amount of sheathing between racks during belt threading is too large or too small.

The invention relates to a processing method of a long-narrow composite material molding part assembling mould. The processing method of the long-narrow composite material molding part assembling mould comprises the following steps of: (1) processing an upper bottom plate and a lower bottom plate; (2) processing a long-narrow clamp plate: (2.1) reserving the margin of 3mm for the thickness and the width; (2.2) carrying out thermal treatment; (2.3) leveling by a bench worker, planning and milling the upper and lower surfaces to be parallel, and reserving a margin of 1mm; and (2.4) numerically processing a matching profile in the width direction and reserving a margin of 1mm; (3) carrying out overall processing on the assembled upper and lower long-narrow clamp plates: (3.1) trimming the involution gaps between three clamp plates respectively; (3.2) grinding two planes in the thickness direction of the overall grinding; and (3.3) numerically processing the upper and lower profiles to meet the dimensional requirement, and then polishing the profiles by bench workers. By using the processing method, the problems that the long-narrow composite material assembling part deforms and the connection of the contact surfaces is poor, the processing precision of the long-narrow assembling mould is improved, and the production efficiency is greatly enhanced.