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Power resistors with integrated heat sink

A technology of resistors and heat sinks, which is applied to the direction of adding resistors, resistors, thick film resistors, etc. at the lead-out end, and can solve problems such as adverse effects of circuits

Inactive Publication Date: 2018-11-09
VISHAY DALE ELECTRONICS INC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resistance can vary greatly, adversely affecting the circuit in which the resistor acts

Method used

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  • Power resistors with integrated heat sink
  • Power resistors with integrated heat sink
  • Power resistors with integrated heat sink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] figure 1 A side view cross-section of one embodiment of an integrated assembly 50 of resistor 10 and heat sink 30 mounted to a printed circuit board or other mounting surface 65 is shown. Assembly 50 is suitable for use as a resistor in automotive vehicles, computer servers, or other high power applications, but is not limited to such applications.

[0009] Resistor 10 includes a resistive element 45 having a top surface 47 , and a conductive terminal 35 in electrical contact with said resistive element 45 . Terminal 35 may also be thermally conductive. The resistive element 45 may be coated with a coating material (not shown) to protect the resistive element 45 during plating of the terminal 35 and the terminal 15, as will be described below. The coating material protects the resistive element 45 from electroplating. The coating material may be any electrically insulating material, such as varnish, epoxy, or silicon epoxy material. The coating material can be locat...

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PUM

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Abstract

An all-in-one assembly includes a resistor and a heat sink. The resistor includes a resistive element and a terminal. The heat sink is integral with the resistor and comprises fins of thermally conductive and electrically insulating material and terminals of thermally conductive material positioned at the edges of the fins. At least a portion of the top surface of the resistive element is in thermally conductive contact with the heat sink. Each resistor terminal is in thermally conductive contact with a corresponding end of the heat sink. A method for making an integrated assembly of a resistor and heat sink comprising: forming the heat sink, forming the resistor, and by bonding at least a portion of the top surface of the resistive element to the heat sink and attaching Each conductive terminal is coupled to a corresponding terminal engaging the heat sink and the resistor.

Description

technical field [0001] This application relates to the field of electronic components, in particular resistors. Background technique [0002] Elevated temperatures degrade the performance of some resistors. Resistance can vary greatly, adversely affecting the circuit in which the resistor is functioning. Heat from the environment or heat generated by the resistor itself when it dissipates electrical power causes the resistor to heat up. In order to reduce the operating temperature, the resistors can be attached to heat sinks which help to carry heat away from the resistors. If you want to achieve reduced operating temperatures, you need to remove heat as efficiently as possible. Contents of the invention [0003] An all-in-one assembly includes a resistor and a heat sink. The resistor includes a resistive element having a top surface, and a terminal in electrical contact with the resistive element. The heat sink is integral with the resistor and comprises a heat sink ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C1/084H01C1/148H01C1/14
CPCH01C1/148H01C7/003H01C1/084Y10T29/49082Y10T29/49101H01C1/14H01C17/28
Inventor C·史密斯T·怀亚特
Owner VISHAY DALE ELECTRONICS INC