4results about How to "Increase contact distance" patented technology

The utility model discloses an activated carbon adsorption device for purifying tert-butylhexane peroxide, and relates to the technical field of activated carbon adsorption. An activated carbon adsorption device for purifying tert-butylhexane peroxide comprises a shell, and a filter frame for filtering gas generated by purification is mounted on the inner wall of the shell; the guide frame is mounted below the filter frame and is used for heating and catalyzing gas; the guide frame comprises a conical block, a plurality of spiral heat conduction plates are arranged on the outer side of the conical block and are distributed in an annular array, the bottom ends of the spiral heat conduction plates correspond to the gas inlet of the shell, a spiral channel is formed between every two adjacent spiral heat conduction plates, the gas transmission distance is prolonged, and the shell comprises an upper shell body and a lower shell body connected with the upper shell body; transmission is carried out in the transmission channel between every two adjacent spiral heat-conducting plates, and in a spiral channel formed by every two adjacent spiral heat-conducting plates, the contact distance between gas and the spiral heat-conducting plates is prolonged, and the heating catalysis efficiency is improved.

The application provides a contact assembly, a change-over switch and a power distribution device, and relates to the technical field of low-voltage electrical apparatuses. The contact assembly comprises a mounting shell, a driving member, a normally-used static contact, a backup static contact, a neutral pole moving contact and phase pole moving contacts; the driving member, the normally-used static contact, the backup static contact, the neutral pole moving contact and the phase pole moving contacts are arranged in the mounting shell; the driving member is connected with the phase pole moving contacts and the neutral pole moving contact, and is used for synchronously and reversely moving the phase pole moving contacts and the neutral pole moving contact, so that the phase pole moving contacts are in contact with the normally-used static contact or the backup static contact, and the neutral pole moving contact is in contact with the normally-used static contact and the backup static contact when the phase pole moving contacts are separated from the normally-used static contact and the backup static contact, thereby eliminating the safety hazard caused by the zero line being empty, and the contact assembly has the advantages of simple structure, few components, reliable action, large contact opening distance and the like, and can meet the design requirements of product miniaturization and modularization.

The application relates to the technical field of cable materials, in particular to an insulating cable material and a preparation method thereof. A large number of'sea-island' interface structures exist in a PP / SEBS blended material body, and charges generated by electrode injection and polarization are prone to accumulating at the'sea-island' interface, so that space charge accumulation is caused, and the voltage breakdown field strength of the material is reduced. Based on the above problems, the application provides an insulating cable material, wherein long-carbon-chain modified graphene is added in the material system; the long carbon chain makes the nano-graphene sheet layer structure not prone to agglomeration; the long carbon chain can also act as a 'bridge' to accelerate the migration speed of carriers in SEBS in all directions, so that the difference between the number of carriers reaching and leaving the'sea-island' interface in the polarization process of the PP / SEBS blended material is reduced, and the space charge accumulation phenomenon at the interface is effectively improved.

The utility model relates to earphone technology field, especially a kind of clip-on ear type bluetooth earphone, including ear cap, earplug, connecting antenna and connecting seat. Connecting antenna inside is provided with sound guide groove, sound guide groove inside is fixedly connected with sound guide pipe, one side is provided with first connecting block integrally formed limit installation disc, the other side is provided with second connecting block integrally formed support connecting bottom plate;Ear cap and earplug are spherical, the spherical shell of ear cap is connected and is composed of first front shell body and first rear shell body, the internal element of ear cap includes mainboard, electrical element, rubber seat and battery;The spherical shell of earplug is connected and is composed of second front shell body and second rear shell body, the internal element of earplug includes subplate, connecting thread, connecting plate, sound production device and support device;Connecting seat includes first connecting seat and second connecting seat.The utility model prevents the interference of absolute input electric signal through sound guide pipe, increases the stability of signal transmission between earphone.