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179 results about "Integrally closed" patented technology

In mathematics, more specifically in abstract algebra, the concept of integrally closed has two meanings, one for groups and one for rings.

Variable-tooth gear with sliding-sheet deforming teeth

A variable-tooth gear with sliding-sheet deforming teeth pertains to the technical fields of gearing, and continuously variable mechanical transmissions. The variable-tooth gear is designed in accordance with “the principle of configuring variable-teeth through infinitely deforming sliding-sheets”. The working surface is composed of a large number of thin sliding-sheets (sliding-needles) superposed on one another. The meshing tooth profiles of arbitrary shapes can be configured by the free and infinite sliding of the sliding-sheets. Since the direction of sliding of the sliding-sheets is different from the direction of forces acting thereupon, the sliding-sheets can freely deform with the current tooth profiles. The direction of the force acting upon the sliding-sheet when transmitting power is perpendicular to the free-sliding direction, or the angle therebetween is within the equivalent friction angle, therefore the sliding-sheet possesses the self-locking property. The tooth profile thus remains unchanged when the sliding-sheets are under stress. All the sliding-sheets form an integrally closed elastic enclosure ring, possessing the effect of “rigidity and flexibility being combined, variable-tooth being fixed”. Therefore the load capacity is high, the transmission is a one-stage transmission and the transmission efficiency is high. There are only two key components, such that the structure is simple, the cost is low and the size is compact. This variable-tooth gear realizes, to the core, the concept of “continuously variable transmission via gear meshing”, and can be applied to vehicles or industrial fields of high speed and large power.
Owner:BEIJING VIT MOBILE TECH

Mobile terminal display screen electro-static resetting method and mobile terminal

InactiveCN103745705ADoes not break the synchronization mechanismGuaranteed display effectStatic indicating devicesComputer terminalComputer science
The invention discloses a mobile terminal display screen electro-static resetting method, which comprises the following steps that (1) high level output by a TE (tearing effect) lead pin of a display module is detected in real time; (2) the number of high level output by the TE lead pin in the set time is counted; (3) whether the high level number in the set time is smaller than the threshold value or not is judged, and if so, the fourth step is carried out; otherwise, no action is carried out; (4) ESD (electro-static discharge) abnormal signals are generated and are sent; (5) after ESD abnormal signals are received, the display module is controlled to be closed and opened. The mobile terminal screen electro-static resetting method has the advantages that the display module is controlled to be integrally closed and opened, and the integral resetting display goal is reached. Compared with the prior art in a mode of only resetting a part in the display module, the method provided by the invention has the advantages that the synchronization mechanism of the display module cannot be damaged, so the normal display is ensured. The invention also discloses a mobile terminal with a display screen electro-static resetting function.
Owner:GUANG DONG MING CHUANG SOFTWARE TECH CORP

Bone conduction swimming earphone

The invention provides a bone conduction swimming earphone and relates to the technical field of earphones. The bone conduction swimming earphone has the technical advantage that the training quality of swimmers is improved. The bone conduction swimming earphone comprises an earphone shell, a bone conduction sensor and an earphone circuit board, wherein the bone conduction sensor and the earphone circuit board are mounted in the earphone shell. The earphone shell is an integrally closed flexible shell. An inductive head of the bone conduction sensor is closely attached to the inner wall of the earphone shell. The earphone circuit board is a flexible circuit board. An earphone circuit, a wireless communication module and a digital-to-analogue conversion module are carried on the earphone circuit. The bone conduction sensor is connected to a sound signal output port of the earphone circuit. An antenna port of the wireless communication module is connected with an antenna. A data port of the wireless communication module is connected with a digital signal port of the digital-to-analogue conversion module through a flexible data line. An analog signal port of the digital-to-analogue conversion module is connected to a sound signal input port of the earphone circuit. The bone conduction swimming earphone is particularly suitable for the swimmers.
Owner:上海博科集团博研科技有限公司 +1

Parking discharge control method of fuel cell system

ActiveCN103887538AFuel cell control methods to avoid or significantly mitigate performance degradationAvoid or significantly mitigate control methodsFuel cell auxillariesMotive system fuel cellsUltrasound attenuationHydrogen
The invention relates to a parking discharge control method of a fuel cell system. The parking discharge control method is used to relieve or prevent the performance attenuation of a proton-exchange membrane fuel cell during the parking process so as to prolong the service life of the vehicle fuel cell, wherein the performance attenuation is caused by long term existence of residual hydrogen gas in the positive electrode of the fuel cell. The fuel cell system comprises a buffer space which is next to the fuel cell. When a driver is about to park, a special switch valve in the hydrogen pipeline is closed so as to integrally enclose the hydrogen gas cavity and the buffer space of the fuel cell, then the fuel cell is connected to an external circuit so as to consume the residual hydrogen gas in the hydrogen gas cavity and the buffer space of the fuel cell, thus a certain vacuum degree is achieved in the enclosed space, after a certain vacuum degree is achieved, the external circuit is disconnected and the special switch in the hydrogen gas pipeline is opened, then the residual hydrogen gas quickly enters the buffer space under the pressure difference, and thus the fuel cell attenuation caused by the long term existence of residual hydrogen gas in the hydrogen gas cavity during the parking process is avoided.
Owner:国创氢能科技有限公司

Transfusion device having automatic bottle change and safety protection functions

The invention relates to a transfusion device having automatic bottle change and safety protection functions. The structure of the transfusion device is that a first transfusion bottle gas passage is communicated with a gas inlet, a second transfusion bottle gas passage is communicated with an air space above a liquid stop film in a protection chamber, the air spaces above the liquid stop films in the two protection chambers are not communicated with each other, the protection chambers are integrally sealed, the air space is formed above the liquid stop film, a baffle is fixedly connected below the liquid stop film, a liquid leaking hole is formed in the baffle, a floating block is arranged below the baffle, an outlet is formed in the middle of the bottom of the protection chamber, the outlet is communicated with a transfusion pipe, and each transfusion bottle liquid passage is communicated to the position below the liquid stop film and above the baffle in the protection chamber. According to the invention, the protection chambers are utilized to enable multiple transfusion bottles to transfuse continuously and close the transfusion pipe after transfusion is completed, so as to prevent vein blood backflow, thereby greatly improving the transfusion safety and reducing the workload of medical care personnel.
Owner:NANJING JINTONGRUN MEDICAL SCI & TECH

Mobile terminal equipment having enclosed housing structure

InactiveCN105848019AThe shape is closed and completePromote infiltrationMicrophonesLoudspeakersTerminal equipmentLoudspeaker
The invention provides a mobile terminal equipment having an enclosed housing structure. The equipment comprises a housing with an integral enclosed structure, a touch control screen mounted on the casing, and a terminal main board which is arranged between the housing and the touch control screen and is connected with the touch control screen, wherein the terminal main board is provided with a built-in SIM card module, an earphone module, a power source module and a data transmission module, the built-in SIM card module comprises an built-in SIM card, the earphone module comprises a non-plug-in earphone port, the power source module comprises a non-plug-in charging port, the data transmission module comprises a non-plug-in data transmission port, the terminal main board is further provided with a piezoelectric ceramic module, the piezoelectric ceramic module comprises a piezoelectric ceramic loudspeaker and a piezoelectric ceramic microphone, and the piezoelectric ceramic loudspeaker and the piezoelectric ceramic microphone are both attached to an inner wall of the housing or are embedded on the housing in a sealing mode. The mobile terminal equipment having the enclosed housing structure is advantaged in that aesthetic property is improved, and the waterproof performance is further improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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