MODULAR SHIELDED ELECTRONICS ENCLOSURE
First Claim
1. A modular electronics assembly for reducing electromagnetic interference (EMI), the electronics assembly comprising:
- a first electronic component having an output;
a second electronic component having an input with an input impedance;
a circuit matching element having an input coupled to the output of the first electronic component and an output coupled to the input of the second electronic component, the output of the circuit matching element configured to provide an output impedance that matches the input impedance of the second electronic component;
a conductive surface configured to form a volume, the first electronic component and the circuit matching element disposed within the volume;
wherein all non-conductive passages from the volume to the external environment have at least one cross-sectional opening having a continuous conductive perimeter with a maximum linear length within the opening of less than one quarter wavelength of a maximum shielding frequency.
1 Assignment
0 Petitions
Accused Products
Abstract
A modular electronics enclosure for reducing electromagnetic interference (EMI) is disclosed. The electronics assembly includes a first electronic component having an output, a second electronic component having an input with an input impedance, and a circuit matching element having an input coupled to the output of the first electronic component and an output coupled to the input of the second electronic component. The output of the circuit matching element is configured to provide an output impedance that matches the input impedance of the second electronic component. The electronics assembly also includes a conductive surface that forms a volume that encloses the first electronic component and the circuit matching element. All non-conductive passages from the volume to the external environment have at least one cross-sectional opening having a continuous conductive perimeter with a maximum linear length within the opening of less than one quarter wavelength of a maximum shielding frequency.
-
Citations
31 Claims
-
1. A modular electronics assembly for reducing electromagnetic interference (EMI), the electronics assembly comprising:
-
a first electronic component having an output; a second electronic component having an input with an input impedance; a circuit matching element having an input coupled to the output of the first electronic component and an output coupled to the input of the second electronic component, the output of the circuit matching element configured to provide an output impedance that matches the input impedance of the second electronic component; a conductive surface configured to form a volume, the first electronic component and the circuit matching element disposed within the volume; wherein all non-conductive passages from the volume to the external environment have at least one cross-sectional opening having a continuous conductive perimeter with a maximum linear length within the opening of less than one quarter wavelength of a maximum shielding frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An electronics assembly for removably connecting an electronic assembly to at least one external device while reducing EMI emissions, the electronics enclosure comprising:
-
a first electronic component comprising an output and an electrical interface connector configured to removably mate with a docking connector coupled to the at least one external device; a second electronic component comprising an input having an input impedance; a circuit matching element coupled between the output of the first electronic component and the input of the second electronic component, the circuit matching element configured to provide an output impedance that matches the input impedance of the second electronic component; a conductive sled configured to accept the first electronic component and the circuit matching element; a conductive cover configured to couple to the sled to form a volume, the first electronic component and the circuit matching element disposed within the volume; wherein all non-conductive passages from the volume to the external environment have at least one cross-sectional opening having a continuous conductive perimeter with a maximum linear length within the opening of less than one quarter wavelength of a maximum shielding frequency. - View Dependent Claims (14, 15, 16, 17, 18, 19)
-
-
20. An All-In-One (AIO) assembly for a medical device, the AIO assembly comprising:
-
a display unit having an input with an input impedance; a conductive sled; a motherboard coupled to the sled, the motherboard comprising a processor and a display driver; a breakout board having an input coupled to the display driver and an output coupled to the input of the display, the breakout board output configured to provide an output impedance that matches the input impedance of the display; a conductive cover coupled to the sled, the conductive cover configured to form a volume when coupled to the, the motherboard and the breakout board disposed within the volume; wherein all non-conductive passages from the volume to the external environment have at least one cross-sectional opening having a continuous conductive perimeter with a maximum linear length within the opening of less than one quarter wavelength of a maximum shielding frequency. - View Dependent Claims (21, 22, 23, 24, 25)
-
-
26. An Automated Dispensing Machine (ADM), comprising:
-
a housing; at least one compartment coupled to the housing, the compartment configured to allow access to the contents of the compartment only after receipt of a signal; a docking connector; and an AIO assembly removably coupled to the housing, the AIO comprising; a display unit having an input with an input impedance; a conductive sled; a motherboard coupled to the sled, the motherboard comprising a processor, a display driver, and an electrical interface connector configured to removably mate with the docking connector; a breakout board having an input coupled to the display driver and an output coupled to the input of the display, the breakout board output configured to provide an output impedance that matches the input impedance of the display; a conductive cover coupled to the sled, the conductive cover configured to form a volume when coupled to the sled, the motherboard and the breakout board disposed within the volume; wherein all non-conductive passages from the volume to the external environment have at least one cross-sectional opening having a continuous conductive perimeter with a maximum linear length within the opening of less than one quarter wavelength of a maximum shielding frequency; and wherein the AIO assembly is configured to be removable from the ADM without disassembly of the external shell. - View Dependent Claims (27, 28, 29, 30, 31)
-
Specification