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919 results about "Contact mechanism" patented technology

Double acting self energy thermal expansion type high pressure sulfur hexafluoride breaker arc extinguish chamber

The invention discloses a double acting self energy thermal expansion type high pressure sulfur hexafluoride breaker arc extinguish chamber, comprising a breaker shell and a static contact mechanism, a moving contact mechanism, a cylinder and an operating mechanism which are fixed in the breaker shell in a sealing way, wherein the operating mechanism drives the moving contact mechanism to move; the static contact mechanism comprises a static main contact and a static arc contact, the moving contact mechanism comprises an arc extinguishing port, a moving main contact and a moving arc contact; the static contact mechanism also comprises a rotating shifting fork driving the static arc contact to move up and down and a guide rail for the static arc contact to move up and down; the moving contact mechanism also comprises a push-and-pull rod which is arranged above the arc extinguishing port and can move up and down along with the moving contact mechanism to correspondingly drive the shifting fork to rotate. The invention has novel and reasonable structure design, all components are compactly connected, and use operation is convenient and use effect is good, thus the actual problems that stroke of the moving contact is large and the required operation power is also high during opening and closing operations in use of the existing self energy type breaker arc extinguish chamber can be effectively solved.
Owner:西安森源开关技术研究所有限公司

Double Break Disconnect/Contact System

The present invention relates generally to a mechanism of a contact system for circuit breakers. More particularly, the invention encompasses a mechanism for a rotary double-break contact system, which enables a direct transfer of torque from stored energy components, such as, springs, to the contact arm in the ON-position (contacts closed) without using intermediate cam surface. The mechanism described in the invention also ensures reliable locking of the contact arm in the blow-off position using stationary means that are integral with or fixed to a crossbar module. This invention enables to achieve significant reduction or even to eliminate friction at certain critical interfaces between the contact mechanism components, thus, reducing or potentially eliminating hysteresis, and improving performance consistency, and also eliminating mechanism performance dependency on wear level and condition of an intermediate cam surface. An additional feature of this invention is a reduction of a loss of contact torque/force during over-travel in the ON position when the fixed and/or moveable contacts erode. Configurations described in this invention may also feature physical protection for the moving components of the contact mechanism assembly from flying particles resulting from short circuit shots.
Owner:SIEMENS IND INC

Electric rice cooker

The present invention provides an electric rice cooker which does not discharge steam. The electric rice cooker comprises a pressure regulating valve which is arranged on an inner cover and used for limiting discharge of steam in an inner pot and maintaining a certain pressure, a steam channel used for discharging the steam discharged from the pressure regulating valve outside of a cover, a heating mechanism used for heating the inner pot, and a control mechanism used for controlling electric power of the heating mechanism; wherein, the cover is provided with a first temperature sensor used for detecting the temperature in the inner pot, the steam channel is provided with a second temperature sensor used for detecting discharge of the steam from the pressure regulating valve through temperature changes, the control mechanism uses the heating mechanism to heat the inner pot according to a prescribed rice cooking process, and controls the electric power supplied to the heating mechanism in the way as follows, when the temperature of the first temperature sensor reaches a prescribed temperature, the control mechanism reduces the electric power supplied to the heating mechanism, and when the second temperature sensor detects the discharge of the steam, the control mechanism enables the electric power supplied to the heating mechanism to be reduced more than the above reduced electric power, so as to maintain the pressure in the inner pot to be higher than the atmospheric pressure within the limits that the pressure regulating valve as far as possible does not perform a pressure regulating motion.
Owner:日立グローバルライフソリューションズ株式会社

Leg mechanism for lower limb rehabilitation training

ActiveCN105030485AEasy to monitor running statusEasy to readGymnastic exercisingChiropractic devicesLow speedKnee Joint
The invention discloses a leg mechanism for lower limb rehabilitation training. The leg mechanism comprises a hip joint mechanism, a knee joint mechanism, an ankle joint mechanism, a thigh connecting rod mechanism, and a crus connecting rod mechanism. The hip joint mechanism, the knee joint mechanism, and the ankle joint mechanism are driven by corresponding joint motors and corresponding absolute value code discs are installed for recording joint angles. The hip joint mechanism is provided with a torque sensor; and the knee joint mechanism is provided with a tension and pressure sensor. Therefore, the joint running state monitoring during the training process can be realized and force-position-sensor-based human body motion intention identification can be executed, thereby carrying out active rehabilitation training. The hip joint mechanism, the knee joint mechanism, and the ankle joint mechanism employ reducing mechanisms with large reduction ratios, so that the joint mechanisms have characteristics of low speed and high torque; and the characteristics are similar to the joint characteristics of the lower limb of the human body, so that the mechanism practicability is improved. The thigh connecting rod mechanism and the crus connecting rod mechanism are provided with length hand-operated adjustment and value reading mechanisms, so that the length adjustment processes of the thigh connecting rod mechanism and the crus connecting rod mechanism become convenient.
Owner:北京中科鸿泰医疗科技有限公司

Circuit breaker

The invention discloses a circuit breaker which comprises a housing, a contact mechanism, an arc extinction system, an operation mechanism and a magnetic tripping mechanism, wherein the contact mechanism comprises a dynamic contact and a static contact; a dynamic contact point is arranged on the dynamic contact; a static contact point is arranged on the static contact; the arc extinction system comprises an arc extinction system chamber; the arc extinction chamber is provided with an arc extinction grid-plate, an arc isolation plate and an arc striking assembly; the arc striking assembly comprises an upper arc striking plate and a lower arc striking plate; the lower arc striking plate is connected with a bimetallic strip; the bimetallic strip is matched with the dynamic contact in a linkage manner; the operation mechanism comprises a handle, a main bracket, a linkage assembly and a lock catch assembly; the lock catch assembly comprises a lock catch and a jump catch; the magnetic tripping mechanism comprises an iron core, a coil and a magnetic yoke; the arc extinction chamber comprises an arc inlet end and an arc outlet end; the arc outlet end is provided with arc outlet shunting partition regions which are a first arc outlet region and a second arc outlet region respectively; and arc guide outlets communicated with the first arc outlet region and the second arc outlet region are formed in the housing. The circuit breaker has the advantages of good breaking capacity, excellent arc extinction effect, safety and reliability.
Owner:ZHEJIANG CHUANGQI ELECTRICAL CO LTD
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