7 results about "Dynamic contact" patented technology

The utility model discloses a three position isolator belongs to switch equipment technical field, including the on contact in left side, the intermediate static contact in on contact right side, the movable moving dynamic contact that has in the intermediate static contact coaxial installation and the grounding contact that is located the intermediate static contact right side and is fixedly connected on the cabinet body aluminum plate, through the left movement of adjusting dynamic contact can control its with on contact contact or disconnect, through the right movement of adjusting dynamic contact can control its with grounding contact contact or disconnect. Through the improvement three position isolator space layout and switching structure, under the electric field distribution uneven of low pressure N2 / dry air insulating medium, the problem of insufficient creepage distance is solved, and the environmental protection requirement is met simultaneously.

The application relates to a compression-type arc-extinguishing chamber, which comprises a static contact mechanism, a dynamic contact mechanism, a cylinder mechanism and an elastic member. The dynamic contact mechanism is disconnectably matched with the static contact mechanism along a first direction. The cylinder mechanism comprises a fixed piston and a cylinder body, and the fixed piston is fixedly arranged relative to the static contact mechanism. The cylinder body is matched with the fixed piston along the first direction to form a piston cooperation. The elastic member is arranged between the dynamic contact mechanism and the cylinder body. The cylinder body and the dynamic contact mechanism are movably matched along the first direction and are driven through the elastic member. In the disconnecting process, due to the compression and blocking effect of the compression chamber, when the cylinder body is obviously resisted and the speed is sharply reduced, the dynamic contact mechanism can continuously deform through the elastic member to move relative to the cylinder body, and cannot be synchronously reduced with the cylinder body, so that the speed change is more stable in the disconnecting process, the dynamic contact mechanism can continuously move along the disconnecting direction, and the risk of disconnecting failure is reduced.

A sealing arrangement is disclosed for sealing between a first component (200) and a second component (300), which are rotatable relative to each other. The sealing arrangement (100) comprises a frame (10) and a sealing body (20), the sealing body (20) being attached to an outer wall of the frame (10). The sealing body (20) is provided with sealing lips (21), the sealing lips (21) being dynamically in contact with the second component (300). The sealing lips (21) comprise a main lip (211) and dust lips (212), the main lip (211) and the dust lips (212) being axially spaced apart, and a first annular cavity (213) being formed between the main lip (211), the dust lips, and the second component (300).The dust lips (212) comprise at least a first dust lip (2121) and a second dust lip (2122), wherein the second dust lip (2122) is used for dynamic contact with the second component (300) and the second dust lip (2122) is provided with a vent hole (2123) that extends through the second dust lip (2122). The vent hole (2123) communicates with the first annular cavity (213), and the first dust lip (2121) is located on the side of the second dust lip (2122) away from the first annular cavity (213) and is used to cover the vent hole (2123) in the axial and radial directions.The problem of vacuum formation in the first annular cavity is solved by the ventilation hole, and by using the first dust lip to cover the ventilation hole, the problems of leakage and failure due to accelerated wear of the sealing lips 21, caused by the direct ingress of contaminating particles into the first annular cavity through the ventilation hole, are solved. A bearing utilizing the described sealing arrangement is also disclosed.

1. The name of the design product: silicon light contact force sensor (guide force spring type). 2. The use of the design product: the shell and tail cable for packaging silicon light pressure sensing chip, suitable for measuring contact force, such as the dynamic contact force value between the subway pantograph and the contact line. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

1. The name of the design product: silicon light bow net contact force sensor (spring box type). 2. The use of the design product: the shell and tail cable for packaging silicon light pressure sensing chip, suitable for measuring contact force, such as the dynamic contact force value between high-speed rail pantograph and contact line. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The application discloses a change-over switch, which comprises a shell and a switch pole, the switch pole comprises a rotating shaft and two sets of contact mechanisms, in a first direction, the rotating shaft is rotatably arranged between the two sets of contact mechanisms, each set of contact mechanisms comprises a static contact group and a dynamic contact assembly, the static contact group comprises two static contacts which are arranged in a second direction, the dynamic contact assembly comprises a contact support and a dynamic contact, the dynamic contact comprises at least two dynamic contact bridges which are arranged side by side in a third direction, each dynamic contact bridge is arranged on the contact support in the second direction, and a dynamic contact point of each dynamic contact bridge is arranged opposite to a static contact point of the static contact in the first direction. In the application, the two adjacent dynamic contact bridges in the same dynamic contact assembly are arranged side by side in the third direction, so that the number of contact points between the dynamic contact assembly and the static contact group can be increased, the two adjacent dynamic contact bridges are prevented from being arranged in the moving direction of the dynamic contact assembly, the space occupied by the dynamic contact assembly in the shell is saved, and the size of the change-over switch is reduced.