摘要:
The present disclosure relates to a subsea pressure vessel (1). The subsea pressure vessel (1) comprises a housing (3) arranged to maintain a pressure within an interior of the subsea pressure vessel (1) which differs from ambient pressure, a vacuum interrupter (5) arranged within the housing (3), which vacuum interrupter (5) has an enclosure (7) for maintaining a vacuum within the vacuum interrupter (5), and which vacuum interrupter (5) has a fixed terminal (9) with a fixed contact (9a) and a movable terminal (11) with a movable contact (11a), wherein the movable terminal (11) is operable between an open state in which the fixed contact (9a) and the movable contact (11a) are electrically separated and a closed state in which the fixed contact (9a) and the movable contact (11a) are electrically connected, and a movement counteracting arrangement (14) comprising a first counteracting member (15) arranged to move concurrently with the movable terminal (11) between the first state and the second state, and a second counteracting member (17) arranged to apply a counteracting force to the first counteracting member (15) when the movable terminal (11) is in the open state and the interior of the subsea pressure vessel (1) is subjected to a pressure increase compared to a normal operating pressure in the subsea pressure vessel (1) to counteract movement of the movable terminal (11) from the open state to the closed state. A subsea unit comprising a subsea pressure vessel (1) is also presented herein.
摘要:
Proximity switches are disclosed that preferably are provided in a hermetically sealed unit that can be used in harsh environments and under significant pressures, such as underwater and in nuclear power facilities, without having any parts that would require replacement or periodic maintenance. The proximity switches are preferably switches actuated by physical movement of a contact in response to changing magnetic forces. The switches are preferably disposed in a body tube optionally including a hermetic seal assembly to seal an open end of the body tube and/or a ferrule that prevents electrical wires attached to the switch inside the body tube from being pulled away from the switch. Further, the switches preferably maintain a contact pressure between electrical contacts sufficient to withstand acceleration seismic testing of 10g with no contact discontinuity.
摘要:
The concave streak portion 26, in which the welding inclination surface 27 is formed, is provided on the side wall 12; the projecting portion 40, which is fitted into the concave streak portion 26 when the substrate 10 and the lid body 35 overlap to form the switch case 3, is provided on the lid body 35; when the substrate 10 and the lid body 35 are overlapped, the switch case 3 is sealed by contacting the seal ring 31 with the flange portion 38 and the welding shoulder portion 41 interferes with the welding inclination surface 27; the substrate 10 and the lid body 35 are jointed by melting the interference portion by high-frequency welding; the release region K, which keep the communicating state of the inside of the switch case 3 with the outside is designed by notching the projecting portion 40 from the root thereof.
摘要:
In a grinder, a terminal plate (67) is projectingly provided on an upper surface of a controller (60). A connection portion (48), which accommodates a female terminal (49) and includes a slit (50) into which the terminal plate (67) enters, is projectingly provided on a lower surface of a main body portion (39) of a switch block (30). At the time of assembling of the switch block (30) and the controller (60), the terminal plate (67) that enters into the connection portion (48) from the slit (50) is inserted into and connected to the female terminal (49). First and second projections (68), (69) that cover a formation surface of the slit (50) in the connection portion (48) when the connection portion (48) is inserted with and connected to the terminal plate (67) are formed on the upper surface of the controller (60).
摘要:
The invention relates to a switching device arrangement, comprising at least one switching device and a preferably dust-tight housing (2), wherein the switching device has a first operating element (3) and is arranged inside the housing, wherein the housing has at least one first housing part and one second housing part (5) connected to the first housing part preferably in a dust-tight manner, wherein a second operating element (7) is arranged on an outer area of the first housing part, and the second operating element is operatively connected to the first operating element at least indirectly by means of a third operating element. According to the invention, the third operating element is supported at least indirectly on a switching device housing of the switching device for the intended actuation and/or functioning of the switching device and/or for mechanically establishing a state of the switching device in a reliable manner.