55results about How to "No need to change size" patented technology

The invention relates to the technical field of voice processing equipment, more specifically, to a microphone. A new-type microphone structure comprises a first layer structure, a second layer structure located on the first layer structure, a microphone acoustic cavity formed by the first layer structure and the second layer structure, at least one acoustic hole for acquiring sound signals, which is arranged on the microphone acoustic cavity, and a dustproof component which covers the inside of the acoustic hole. The invention can prevent most of the dust particles and the moisture and the siphoning effect in actual use, which does not need to change the size of the existing microphone. It can be used in thin structures, and can prolong the service life of the microphone.

The present invention relates to a device for reducing the pressure and the velocity of a flowing fluid. According to the present invention, a cage has discs having through-holes which come into close contact with an outer surface of a plug. The discs are stacked in a direction of a central shaft of the cage. Flow passage portions are formed on the stacked discs, wherein the flow passage portions communicate with the outer surfaces of the discs and the inner surfaces which correspond to the through-holes so as to form flow passages between the stacked discs, and the direction of the flow passages changes to a circumferential direction and a vertical direction on the stacked discs. Additionally, the discs are stacked by applying one or more flow passage portion patterns based on the number of times the direction of the flow passages changes and the number of the flow passage portions to the discs so as to control the increasing velocity of a fluid relative to an opening degree formed according to an upward movement of the plug.

A multi-stage tangential magnetic field plasma thruster with a channel magnetic field guiding structure, which relates to an electric thruster to solve the problem that the magnetic field configuration and the tip position of the magnetic mirror of the existing thruster cannot be achieved according to the change of the discharge channel section It is convenient and adjustable, the angle of the magnetic interface at the tip of the magnetic mirror is not easy to adjust, and the long processing period and high price of the samarium cobalt permanent magnet material used for variable cross-section experiments include ceramic sleeves, engine casings and four permanent magnets. The permanent magnet is a ring-shaped permanent magnet, and the four permanent magnets are arranged sequentially from top to bottom. A ceramic sleeve is arranged in the middle of the four permanent magnets. The large-diameter port of the ceramic sleeve faces upward, and the four permanent magnets pass through the engine casing. Snapped together, it also includes five magnetically permeable rings and five non-magnetically permeable matching rings; the five magnetically permeable rings are the first magnetically permeable ring, the second magnetically permeable ring, the third magnetically permeable ring, the fourth The magnetic conduction ring and the fifth magnetic conduction ring. The invention is applied in the aerospace field.

The invention provides a display panel and electronic equipment. A convex-concave pattern is formed in a contact region of a first substrate of the display panel with a supporting column, based on thestructure, contact area of the supporting column with a bottom layer is increased, and the size of a single subpixel does not need to be changed, so that the technical problem that the supporting column of existing 8K ultrahigh-resolution electronic equipment can be peeled off easily is alleviated; meanwhile, by adjusting voltage drop values of clock input transistors in different GOA units, voltage drop values between each GOA unit and a clock driving chip are approximately the same, and CK impedance difference existing in 8K ultrahigh-resolution electronic equipment is alleviated.

The invention relates to a decoupling lightning protection circuit and a lightning protection terminal. The lightning protection circuit includes at least two stages of lightning protection units connected to the conductors of the main circuit, and a decoupling unit is arranged between adjacent lightning protection units. The decoupling unit is at least one magnetic ring, and the magnetic ring is sleeved on the The periphery of the conductor between the two lightning protection units. The connection terminal includes a connection terminal main body and a lightning protector detachably connected to the connection terminal main body. The main body of the connecting terminal includes an insulating shell, a wire inlet and a wire outlet respectively provided at two ends of the insulating shell, and a conductor connecting the wire inlet and the wire outlet. The lightning protection device can use the above-mentioned decoupling lightning protection circuit. By using the magnetic ring set on the periphery of the conductor, the decoupling between the two lightning protection units can be effectively realized when the lightning protection unit is working. The decoupling magnetic ring does not need to be electrically connected to the conductor, which reduces the electrical connection point, improving the reliability of the circuit.

The invention provides a high-pressure slurry-casting ram pump piston system with a split rear cover. The piston rear cover of the system is provided with an inner clamping sleeve and an outer clamping sleeve which are split, and a free space is remained between the inner clamping sleeve and the outer clamping sleeve. The invention solves the problem that a seal washer of the prior high-pressure slurry-casting ram pump piston is often scratched by slurry hardening objects, thereby reducing the replacement time of the seal washer, leading the high-pressure slurry-casting ram pump piston to be in a good work state in a long period, and improving the medium pouring quality and the machine work efficiency. The high-pressure slurry-casting ram pump piston system with a split rear cover has simple structure, greatly improves the processing difficulty of the original rear cover, not only can ensure the tight fit with a piston rod, but also can allow larger operating errors, and can be directly replaced without changing the specifications of the piston system and other subassemblies; and otherwise, the inner clamping sleeve with smaller volume can be made of high wear-resistant materials is tightly fit with the piston rod so as to resist wear and can prolong the service life of the piston system.

Through making intervals among acicular terminal portions be equal to intervals among terminals of a universal connector, a miniaturization butting connector with versatility is provided. The butting connector (1) comprises a terminal (3) possessing a ferrite core (10) and a connector shell (5) which accommodates the terminal (3). The terminal (3) comprises a busbar (28) and a plurality of acicular terminal portions (29) which are extended from the busbar as a certain interval and are along a length direction of the busbar (28). The ferrite core (10) comprises first ferrite cores (10a) arranged on base ends (29a) of the acicular terminal portions (29) and second ferrite cores (10b) arranged on middle portions (29b) of the acicular terminal portions (29). The first ferrite cores (10a) and the second ferrite cores (10b) are alternately arranged on the plurality of acicular terminal portions (29).

The invention provides a spliced ​​tobacco stem box frame and a method of use, which relate to the technical field of cigarette storage, wherein a spliced ​​tobacco stem box frame includes a box body and a frame body arranged in the box body, and the frame body includes a first column, the second column and the third column, the first column is provided with a first clamping block, the first clamping slot is opened between the first clamping block and the first column, the second column is provided with a second clamping block, and the second column is provided with a second clamping block. A second clamping slot is opened between the second clamping block and the second column, the third column includes a first plane and a second plane perpendicular to the first plane, at least a part of the first plane is located in the first clamping slot, and the second At least a part of the plane is located in the second slot, and a backing plate is also arranged in the box. A spliced ​​stem box frame and using method of the present invention do not need to change the size of the tobacco stem box, can effectively strengthen the strength of the tobacco stem box, ensure that the tobacco stem box is not easily deformed during operation, and there is no risk of lining puncture, thereby avoiding Leakage of stems and materials ensures the quality and hygiene of cigarettes.

The invention relates to a runway substrate of a treadmill, which is mainly characterized in that: side frames are fixedly arranged on both sides of a bottom board respectively; a pedal frame is arranged on each side frame; each pedal frame consists of an anti-slip frame and a rib; the anti-slip frames are fixedly arranged on the tops of the opposite side frames; an anti-slip element can be arranged on each anti-slip frame; and the ribs are connected with and arranged on the side not opposite to the bottom boards of the anti-slip frames. Therefore, the constructed runway substrate can increase the width of a runway to the maximum and improve the whole practicability.