摘要:
A semiconductor module has a housing, including a power semiconductor, a cooler bearing against the latter and serving for dissipating heat loss. In at least one embodiment, a spring element, which is supported between housing and cooler, is arranged on the side of the cooler remote from the power semiconductor and prestresses the cooler against the power semiconductor.
摘要:
An engine control device, especially an engine control device having an internal by-pass, is disclosed. The universally applicable engine control device includes an integrated by-pass function. For this purpose, a housing includes chambers that are electrically insulated from one another and that are configured both to receive a respective power subunit, and, alternatively, to receive a continuous current-bearing element.
摘要:
The invention relates to a method, particularly suitable for the extraction and enrichment of a volatile component from a liquid, solid or gaseous sample for subsequent introduction into an analytical device, for example, a gas chromatograph. The sample is flushed through a packing of extraction material for extraction of the analytes of interest. A suitable device comprises a syringe with a hollow needle. A chamber is provided between the needle and syringe, in which the extraction material is arranged.
摘要:
An exterior vehicle mirror assembly is disclosed having a holding arm connection with reduced wind turbulence comprising a holding arm having a first end and a second end for attachment to the vehicle. A mirror head is carried by the holding arm having a mirror element. A connection device is disposed between the mirror head to the holding arm having opposing convex sides including a convex mounting side and a convex wind encountering side. The convex mounting side providing an enlarged mounting surface disposed toward the mirror head. The connection device has a contoured cradle for engaging the enlarged mounting surface of the convex mounting side of the holding arm with the opposing convex side of the holding arm being aerodynamically exposed to the on coming wind. A fastener tightly fastens the holding arm and connection device together so that a reliable connection with reduced turbulence is provided for the mirror head and the holding arm.
摘要:
An aim of an embodiment is to reduce the volume of power modules, especially for electronic motor control devices. An area is formed between cooling elements with the aid of an annular shaped rubber seal. A semi-conductor device is sealed with a sealing compound therein. Both sides of the semi-conductor device can be cooled with cooling bodies enabling the amount of space required for the power module to be reduced.
摘要:
A mirror support plate for use with vehicles, which can be attached to a holder by way of a chucking and sliding connection. The support plate is provided with two ridges which protrude from its back and include at least one projection which extends towards the other ridge in such manner that the border region of the holder can be inserted between the back of the holder and the projections. The mirror support plate includes a first elastic element and second elastic element, which function as upper and lower elements. The elastic elements are designed so that as the holder is inserted, it elastically deforms the lower one of the first and second elastic elements towards the back of the mirror support plate allowing outer edges of the holder to move into frictional contact with the projections and the back of the support plate and its upper end into interlocking contact with the upper of the first and second elastic elements.
摘要:
A support arm for a vehicle mirror having at least one mirror head with a mirror pane which includes an upper holding arm (1) made of plastic with an anchoring element (2) for mounting on a vehicle, and a lower holding arm (3) made of plastic with an anchoring element (4) at the bottom for mounting on a vehicle. A one-piece base (6) includes a metal tube (5) whose top or, as the case may be, bottom end is securely connected with the upper and lower holding arm, respectively. The base can also be built in the form of a base plate. In this case, the base has a removable positioning wedge (7) that can be removed from the base to change the angle of at least one mirror pane and/or mirror head carried by the base. The positioning wedge is attached to provide an exterior driver-side rear view mirror, and is removed to provide a passenger-side rear view mirror.
摘要:
In a vacuum contactor, the armature is initially deflected from an armature rest position through an initial movement distance, and then through a driving movement distance to an armature operating position when a pull-in current is applied to a drive coil. An operating element is deflected from an element rest position to an element operating position by the armature only while the latter is passing through the driving movement distance. This makes it possible to achieve a good tripping characteristic of the vacuum contractor.
摘要:
The sheets (1,2) which are to be butt welded are positioned with their edges in contact with one another. To reduce the gap (3) to a width acceptable for laser welding, at least one sheet (2) is plastically deformed along the line of the joint so that material flows towards the gap, reducing the width of the gap. In this way, sheets cut to size with much less precision can be welded together.
摘要:
To increase the measuring sensitivity of a simple-to-manufacture, multi-faced solid optical current sensor, at least one of the light-reflecting lateral faces is displaced radially inward with respect to the remaining light-reflecting lateral faces and has a lesser minimum distance from a center of the solid optical current sensor than the other lateral faces. Because of this displacement, the incident light beam does not move through a closed polygonal progression in the course of a single circuit around a recess for a current conductor, whose current intensity is to be measured by means of the Faraday effect. Helically overlapping displacements of the light circuit paths are created, which cause an increase in light sensitivity. The lateral face or another lateral face can also be displaced outwardly instead of inwardly.