Housing for electronic circuits, electrically connecting element and contact spring, procedure for electromagnetic shielding
A technology for electrical connection and contact elements, applied in the system field of the frame, can solve problems such as poor electrical contact under pressure, and achieve the effect of reliable shielding and good shielding
Inactive Publication Date: 2007-08-08
BERTIL LOHMAN DESIGN
View PDF13 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This has the disadvantage of possibly getting down pressure in the center of the backplate and poor electrical contact, see column 3 lines 11-16
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0050] In Figure 1, a perspective view of those parts of a device housing or case is shown that will house electronic components that are accessible from the outside of a pluggable board or expansion board connected to connectors inside the case. Use what you need. For device enclosures such as computers, ie for computer cases, this availability from the outside is required for various types of pluggable boards such as graphics boards, audio boards, network boards and the like. These boards include connectors for external connections which may be mounted in the backplane or in the shield of the pluggable board or accessible through openings in the backplane.
[0051] In the sheet metal housing 1 of the equipment box made of electrically conductive material, a large rectangular opening 3 is provided, usually at the back of the box. A plurality of frame parts 5 are fastened in the opening 3 . With the exception of the outermost one located on one of the sides, i.e. the right f...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
At the opening (3) for insertable electronic or similar cards in a housing (1) for electronic circuits a frame is mounted including separate frame parts (5, 5', 5'') having outer portions connecting to the edges of the opening. The frame can by its modular construction be adapted to an arbitrary number of shielding or cover plates (7) that are comprised in such cards and are placed or are to be placed in the opening. A simple mark-up of the position for a card can be easily made on a frame part located at the part opening for the card. The frame parts form together with the cover plates a whole continuous surface. Intermediate frame parts (5) divide the opening in part openings, each intended for only one cover plate. Elastic contact elements (27) are provided mounted in recesses in the frame parts to electrically connect adjacent cover plates to each other and a frame part to that cover plate or those cover plates which are located at the frame part. The contact elements provide a reliable elastic contact to edge surfaces of the cover plates by acting in the plane of the cover plates. Furthermore, contact springs (45, 45') connect the frame parts to the housing.
Description
technical field [0001] The invention relates to a device housing or device housing such as a device box for electronic circuits, comprising an electrically shielded opening for external connection of an expansion board or pluggable board and means for providing such an electric shield, in particular It relates to a method and a device for the electrical connection of a backplane of a pluggable board and a system for building a frame of such a backplane. Background technique [0002] Typically, personal computers tend to provide accessories such as pluggable boards or expansion boards for different functions, such as are usually used to connect a display monitor, that is, to provide a graphics display, for communication, for example, via a modem or with a local network, using to drive speakers. The pluggable board plugs into a specially formed socket connector that typically mounts directly to the motherboard of a personal computer. The short sides of the pluggable board ca...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H05K5/00H05K9/00G06F1/18H05K7/14
CPCG06F1/185G06F1/186H05K9/0016G06F1/184G06F1/18
Inventor B·洛赫曼
Owner BERTIL LOHMAN DESIGN