TWI432105B - Circuit device - Google Patents

Description

Circuit device

The present invention relates to a circuit device, and more particularly to a circuit device having an external conductive air bridge.

With the awareness of environmental protection, the efficiency of energy utilization has gradually become an important part of it. Especially for desktop computers, the huge power consumption has gradually become the main source of waste heat in the family. When the computer is running, there are many reasons for the power loss. One of them is the power/grounding power consumption of the printed circuit board (PCB). Due to the limited space available for wiring on the printed circuit board, it is impossible to plan. A sufficient power plane is provided to reduce the resistance value of the power transmission path, thereby causing energy loss.

Accordingly, it is an object of the present invention to provide a circuit arrangement having an external conductive hollow bridge to solve the above problems.

An embodiment of the present invention provides a circuit device including a circuit board and an external conductive air bridge. The circuit board has at least one power receiving end and at least one power output. The external conductive hollow bridge is mounted on the circuit board and electrically connects the power receiving end to the power output end. The external conductive hollow bridge includes a plurality of first conductive connection elements and a second conductive connection element, the second conductive connection elements being at a distance from the circuit board. Each of the first electrically conductive connecting elements includes a first connecting end and a second connecting end. a plurality of first connection ends of the plurality of first conductive connection elements are fixed to the circuit board and electrically connected to the power receiving end and the Power output. The second electrically conductive connection element connects the plurality of second connection ends of the plurality of first electrically conductive connection elements.

Certain terms are used throughout the description and following claims to refer to particular elements. It should be understood by those of ordinary skill in the art that hardware manufacturers may refer to the same elements by different nouns. The scope of this specification and the subsequent patent application do not use the difference of the names as the means for distinguishing the elements, but the difference in function of the elements as the criterion for distinguishing. The term "including" as used throughout the specification and subsequent claims is an open term and should be interpreted as "including but not limited to". In addition, the term "coupled" is used herein to include any direct and indirect electrical connection. Therefore, if a first device is coupled to a second device, it means that the first device can be directly electrically connected to the second device or indirectly electrically connected to the second device through other devices or connection means.

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is an external view of an embodiment of a circuit device having an external conductive hollow bridge according to the present invention, and FIG. 2 is a cross-sectional view of the circuit device shown in FIG. schematic diagram. The circuit device 100 of the present invention includes a circuit board 110 and an external conductive via 120. The circuit board 110 has at least one power receiving end 112 and at least one power output end 114. The circuit board 110 includes a plurality of power supply layers 102_1, 102_2, 102_3, and 102_4 and a plurality of grounding layers 104_1 and 104_2 (note that the power layer The number of grounding layers is for illustrative purposes only, and not as a limitation of the present invention), the power supply layers 102_1~102_4 are used to transmit the supply voltage, and the ground layers 104_1, 104_2 are used to transmit the ground voltage, in addition, the circuit board 110 can be set to have complex A number of circuit elements 106_1, 106_2 (eg, capacitors, inductors, and other components). In this embodiment, the power receiving end 112 and the power output end 114 are electrically connected to the power layers 102_1 102 102_4 in the circuit board 110.

The external conductive hollow bridge 120 is mounted on the circuit board 110, and electrically connects the power receiving end 112 to the power output end 114. The external conductive hollow bridge 120 includes a plurality of first conductive connecting elements 122_1, 122_2, 122_3. And a second electrically conductive connection element 124, wherein each of the first electrically conductive connection elements 122_1, 122_2, 122_3, and 122_4 includes a first connection end 1220 and a second connection end 1222, and the first electrically conductive connection The plurality of first connecting ends 1220 corresponding to the components 122_1~122_4 are fixed to the circuit board 110, and some of the first conductive connecting elements 122_2, 122_4 are electrically connected to the power receiving end 112, and the other first conductive connecting elements 122_1, 122_3 The second electrically conductive connection element 124 is electrically connected to the plurality of second connection ends 1222 of the first electrically conductive connection elements 122_1 122 122_4 and is spaced apart from the circuit board 110. Please note that the number of first electrically conductive connection elements is for illustrative purposes only and is not a limitation of the invention.

Briefly, in this embodiment, the first conductive connection elements 122_1~122_4 are a plurality of metal pillars, and the second conductive connection element 124 is a planar conductor (such as graphite, metal, etc.), and second The conductive connection element 124 is suspended from the circuit board 110 through the support of the first conductive connection elements 122_1~122_4 (ie, the length of the first conductive connection element 122 needs to be at least greater than the highest circuit element on the circuit board 110). The height of 106_2) is intended to reduce the power between the power receiving end 112 and the power output 114 by the power plane provided by the second electrically conductive connection element 124. Resistance, which in turn reduces the power consumption when the power is output.

In detail, it is known from Ohm's law that the magnitude of the resistance is inversely proportional to the cross-sectional area through which the current flows, in other words, through an external power supply channel provided by the first electrically conductive connection elements 122_1~122_4 and the second electrically conductive connection element 124. The cross-sectional area through which the current flows can be additionally increased (compared to the cross-sectional area of the power supply layer in the original circuit board 110), so that the resistance of the power supply output can be effectively reduced. That is, the second electrically conductive connection element 124 can be any shape (eg, a flat surface, a strip, etc.), as long as the cross-sectional area through which the current flows can be increased, and is well known without departing from the spirit of the present invention. Variations made by the skilled artisan according to different system requirements are within the scope of the present invention.

In addition, under the same concept, the present invention can also be used to improve the power consumption generated by the ground terminal. Please refer to FIG. 3, which is a cross section of another embodiment of the circuit device with an external conductive air bridge according to the present invention. schematic diagram. The structure of the circuit device 200 of the present invention is similar to the circuit device 100 of the present invention, except that the power receiving end 212 and the power output end 214 are connected to the ground layers 104_1, 104_2 in the circuit board 110, in other words, the first The electrically conductive connection element (only the two first electrically conductive connection elements 222_1, 222_2 are shown in FIG. 3) and the second electrically conductive connection element 224 form an external conductive via 220 for providing an external ground path, wherein The external conductive via 220 can be implemented as an external conductive via 120 as shown in FIG. In addition, each of the first conductive connection elements 222_1, 222_2 includes a first connection end 2220 and a second connection end 2222, and the plurality of first connection ends 2220 corresponding to the first conductive connection elements 222_1, 222_2 are fixed. On the circuit board 110, and a portion of the first electrically conductive connection element (eg, 222_2) is electrically connected to the power receiving end 212, and the other first electrically conductive connection The component (e.g., 222_1) is electrically coupled to the power output 214, and further, the second electrically conductive connection component 224 connects the plurality of second terminals 2222 of the first electrically conductive connection component 222_1, 222_2. The detailed operation principle of the circuit device 200 shown in FIG. 3 can be easily understood by those skilled in the art with reference to the technical contents of FIGS. 1 and 2 described above, and will not be described again for the sake of brevity.

In the embodiment of the present invention, the first conductive fixing elements 122_1~122_4/222_1~222_2 may be screwed, snapped, soldered or bonded to the circuit board 110. However, those skilled in the art have It can be implemented or changed, and the invention is not limited thereto.

In summary, the present invention provides a circuit device having an external conductive air bridge, which can increase the cross-sectional area through which current flows by providing an external power plane to reduce the resistance on the current path, thereby reducing power/grounding. The power consumption generated.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100,200‧‧‧circuit devices

102_1, 102_2, 102_3, 102_4‧‧‧ power layer

104_1, 104_2‧‧‧ Grounding layer

106_1, 106_2‧‧‧ circuit components

110‧‧‧Circuit board

120, 220‧‧‧ external conductive air bridge

112, 212‧‧‧ power receiving end

114, 214‧‧‧ power output

122_1~122_4, 222_1, 222_2‧‧‧ first conductive connection element

124, 224‧‧‧Second conductive connection element

1220, 2220‧‧‧ first connection

1222, 2222‧‧‧second connection

1 is an external view of an embodiment of a circuit device having an external conductive via in the present invention.

Fig. 2 is a schematic cross-sectional view showing the circuit device shown in Fig. 1.

3 is a cross-sectional view showing another embodiment of a circuit device having an external conductive via in the present invention.

100‧‧‧circuit devices

102_1, 102_2, 102_3, 102_4‧‧‧ power layer

104_1, 104_2‧‧‧ Grounding layer

106_1, 106_2‧‧‧ circuit components

110‧‧‧Circuit board

120‧‧‧External Conductive Empty Bridge

112‧‧‧Power receiving end

114‧‧‧Power output

122_1, 122_2‧‧‧ first conductive connection element

124‧‧‧Second conductive connection element

1220‧‧‧First connection

1222‧‧‧second connection

Claims (6)

A circuit device comprising: a circuit board having at least one power receiving end and at least one power output end; and an external conductive hollow bridge mounted on the circuit board and electrically connecting the power receiving end to the circuit board The output conductive terminal includes: a plurality of first conductive connection elements, each of the first conductive connection elements includes a first connection end and a second connection end, the plurality of first conductive ends A plurality of first connecting ends of the connecting component are fixed to the circuit board and electrically connected to the power receiving end and the power output end respectively, wherein the plurality of first conductive connecting elements are a plurality of metal pillars, and the plurality of metals The length of the cylinder is greater than the height of one of the highest circuit components mounted on the circuit board; and a second electrically conductive connection component connecting the plurality of second connection ends of the plurality of first electrically conductive connection elements, the second The electrically conductive connection element is spaced from the circuit board to reduce electrical resistance between the power receiving end and the power output. The circuit device of claim 1, wherein the second electrically conductive connection element is suspended above the circuit board through the support of the plurality of first electrically conductive connection elements. The circuit device of claim 1, wherein the second electrically conductive connection element is a planar conductor. The circuit device of claim 1, wherein the plurality of first guides The electrical fixing component is fixed to the circuit board by screwing, snapping, soldering or bonding. The circuit device of claim 1, wherein the power receiving end and the power output end are connected to a power layer in the circuit board, and the external conductive air bridge provides an external power channel. The circuit device of claim 1, wherein the power receiving end and the power output end are connected to a ground layer in the circuit board, and the external conductive air bridge provides an external grounding channel.