Apparatus for and method of cooling molded electronic circuits
First Claim
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1. A compact power conversion device comprising:
- a) a power conversion circuit coupled to receive electric power from a power supply network via power supply leads; and
, b) a heat conductive body thermally coupled with the power conversion circuit for substantially efficient heat transfer from the power conversion circuit and to the power supply leads, such that heat generated by the power conversion circuit is conductively transferred to the power supply network.
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Abstract
An electronic device such as an AC/DC power adapter includes a conductive heat dissipation system. The device contains heat generating components and is powered via power supply leads by an external power supply circuit. The device further contains a thermally conductive mass that is thermally coupled to both the heat generating components and to the power supply leads. When the power supply leads are coupled to receive electricity from the external power supply circuit, heat generated by the device is thermally conducted into the external power supply circuit via the power supply leads.
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Citations
29 Claims
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1. A compact power conversion device comprising:
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a) a power conversion circuit coupled to receive electric power from a power supply network via power supply leads; and
,b) a heat conductive body thermally coupled with the power conversion circuit for substantially efficient heat transfer from the power conversion circuit and to the power supply leads, such that heat generated by the power conversion circuit is conductively transferred to the power supply network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15)
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9. A power converter comprising:
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a) a circuit for converting an electric signal;
b) power supply leads coupled to provide the electric signal to the circuit; and
,c) an electrically inert, thermally conductive mass coupled with the circuit to transfer heat generated by the circuit to the power supply leads, wherein the power supply leads are coupled to a power supply network such that the heat generated by the circuit is transferred to the power supply network. - View Dependent Claims (10, 11, 12, 13, 14, 16)
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17. A method of cooling an electronic device supplied by an external power source, the method comprising:
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a) thermally coupling for substantially efficient heat transfer at least a portion of an electronic device to a thermally conductive body; and
,b) thermally coupling for substantially efficient heat transfer at least a portion of each of a plurality of power supply leads to the thermally conductive body. - View Dependent Claims (18, 19, 20)
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21. An AC/DC converter assembly comprising:
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a) an AC/DC converter circuit having a primary portion and a secondary portion, the primary portion and the secondary portion having a space between them with a thickness;
b) a plurality of AC plugs coupled with the AC/DC converter circuit; and
,c) a housing comprising a thermally conductive and electrically resistive body molded around the AC/DC converter circuit and also around at least a portion of each of the plurality of AC plugs so that the thermally conductive and electrically resistive body is thermally coupled with the AC plugs and the AC/DC converter circuit, wherein, thermal energy dissipated in the AC/DC converter circuit is thermally conducted to the AC plugs. - View Dependent Claims (22, 23, 24, 25, 26)
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27. A device for cooling one or more electronic circuits supplied by an external power source via a plurality of power supply leads, the circuits comprising a plurality of circuit elements, the elements further comprising heat producing elements, the device comprising a thermally conductive mass thermally coupled with at least the heat producing elements of the circuits and with the power supply leads.
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28. A system for cooling an electronic device, the device comprising heat dissipating elements and supplied by an external power source, the means comprising:
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a) means for conductively capturing heat produced by the heat dissipating elements of the device; and
,b) means for conducting the heat captured from the heat dissipating elements of the device into the external power source.
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29. A method of manufacturing a power adaptor, comprising the steps of:
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a) providing a power conversion circuit, including a plurality of power supply leads, power conversion components, and power output leads; and
,b) molding a heat conductive material around the power conversion components to form a plug structure and integrated strain relief structure.
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Specification