Circuit board device, electronic device, and circuit board

Abstract

A circuit board device, an electronic device and a circuit board are disclosed. The circuit board device comprises: a first circuit board comprising a first substrate, a first port, a second port and a first trace, the first port and the second port are arranged on a first side of the first substrate, and the first trace is arranged in the first substrate and connects the first port and the second port; and a second circuit board comprising a second substrate, a third port, a fourth port, a fifth port, a sixth port, a first power supply path and a second power supply path, the third port and the fourth port are arranged on a first side of the second substrate, the fifth port and the sixth port are arranged on a second side of the second substrate, the first power supply path and the second power supply path are arranged in the second substrate, the first power supply path connects the third port and the fifth port, the second power supply path connects the fourth port and the sixth port, the first port is connected to the fifth port, and the second port is connected to the sixth port. Based on the above scheme, the power supply path can be expanded for power supply purposes.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and more specifically, to a circuit board device, electronic device, and circuit board. Background Technology

[0002] With the development of electronic technology, circuit boards are becoming increasingly important for the miniaturization and mass production of electronic devices. As the carrier of electronic components, circuit boards can compactly combine electronic components. Among the various connection paths, the design of the power supply path is particularly critical. Utility Model Content

[0003] This application provides a circuit board device, electronic device, and circuit board to expand the power supply path for power supply applications, save on power supply circuitry required for power supply, and achieve full consolidation of power supply.

[0004] In a first aspect, a circuit board apparatus is provided, comprising: a first circuit board including a first substrate, a first port, a second port, and a first trace, wherein the first port and the second port are disposed on a first side of the first substrate, and the first trace is disposed within the first substrate and connects the first port and the second port; and a second circuit board including a second substrate, a third port, a fourth port, a fifth port, a sixth port, a first power supply path, and a second power supply path, wherein the third port and the fourth port are disposed on a first side of the second substrate, the fifth port and the sixth port are disposed on a second side of the second substrate, the first power supply path and the second power supply path are disposed within the second substrate, and the first power supply path connects the third port and the fifth port, and the second power supply path connects the fourth port and the sixth port, wherein the first port is connected to the fifth port, and the second port is connected to the sixth port.

[0005] The first circuit board can extend the power supply path of the second circuit board without changing the routing of the second circuit board. Selecting a power supply path to power different ports can save on the power supply circuitry required. Furthermore, port power supply merging on the first circuit board near the ports is more efficient than port power supply merging implemented at the power supply path.

[0006] In some implementations of the first aspect, the first trace is connected to the first power supply path via the fifth port and supplies power to the load circuit connected to the fourth port via the sixth port and the fourth port; or, the first trace is connected to the second power supply path via the sixth port and supplies power to the load circuit connected to the third port via the fifth port and the third port.

[0007] In some implementations of the first aspect, a filter circuit is disposed on the second side of the first substrate.

[0008] In some implementations of the first aspect, the third and fourth ports share a common filter circuit.

[0009] In some implementations of the first aspect, the filter circuit includes a capacitor whose capacitance value is determined based on the third port and / or the load circuit to which it is connected, and the fourth port and / or the load circuit to which it is connected.

[0010] In a second aspect, an electronic device is provided, including a circuit board arrangement as described in any of the first aspects.

[0011] Thirdly, a circuit board is provided as a first circuit board for connecting to a second circuit board. The second circuit board includes a first power supply circuit and a second power supply path. The first power supply path is used to supply power to a first load circuit, and the second power supply path is used to supply power to a second load circuit. The first circuit board includes: a first substrate; a first port and a second port disposed on a first side of the substrate. The first port is used to connect to the power supply terminal of the first load circuit, and the second port is used to connect to the power supply terminal of the second load circuit; and a first trace disposed within the first substrate, wherein the first trace connects the first port and the second port.

[0012] In some implementations of the third aspect, the first trace is used to connect the first power supply path to power the second load circuit, or the first trace is used to connect the second power supply path to power the first load circuit.

[0013] In some implementations of the third aspect, the circuit board further includes a filter circuit disposed on a second side of the first substrate, with the first side and the second side opposite to each other. Attached Figure Description

[0014] Figure 1 A schematic diagram of a circuit board device according to an embodiment of this application is shown.

[0015] Figure 2 A schematic diagram of another circuit board device according to an embodiment of this application is shown.

[0016] Figure 3 A schematic diagram of another circuit board device according to an embodiment of this application is shown.

[0017] Figure 4 A schematic diagram of another circuit board device according to an embodiment of this application is shown.

[0018] Figure 5 A comparative diagram of power supply schemes is shown.

[0019] Figure 6 A schematic diagram of an electronic device according to an exemplary embodiment of this application is shown. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0021] To keep the drawings concise, the figures in this application only schematically show the parts related to the corresponding embodiments, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, some figures only schematically show some structures or components, and there may actually be more or fewer identical or similar structures or components.

[0022] The business scenarios described in the embodiments of this application are for illustrative purposes only and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0023] In this application, unless otherwise expressly specified and limited, "connection" includes direct or indirect connection between objects: connected objects may be directly connected through a medium (e.g., wires, traces, etc.), or indirectly connected through other components, or may be an internal connection. "Coupling" includes signal connection between objects, which may be achieved directly through a medium (e.g., wires, traces, etc.), or through other components. "Grounding" includes direct grounding or indirect grounding, with indirect grounding including, for example, grounding through other components.

[0024] In this application, unless otherwise expressly specified and limited, ordinal numbers, such as "first," "second," etc., are used only to distinguish the objects being described and should not be construed as indicating or implying the relative importance or order between the objects being described. Furthermore, ordinal numbers do not represent the quantity of the objects being described. "Multiple" includes two or more, and other quantifiers are similar. "Or," "and / or," etc., are used to describe the relationship between objects, indicating a non-exclusive inclusion. For example, "A and / or B," "A or B" can include: "A alone," "B alone," or "A and B." Similarly, "A, B, and / or C," "A, B, or C" can include: "A alone," "B alone," "C alone," "A and B," "A and C," "B and C," or "A, B, and C." Additionally, the " / " in this application is used to indicate an "or" relationship between preceding and following objects. The meaning of "one or more of A and B" or "at least one of A and B" in this application is the same as the meaning of "A and / or B" or "A or B" above. "One or more of A, B and C" or "at least one of A, B and C" has the same meaning as "A, B and / or C" or "A, B or C" above.

[0025] The connection paths of a circuit board include the traces within the board, which are configured based on the connection purpose. However, when the connection purpose of a connection path changes, it is difficult to meet the new connection purpose by modifying the traces within the circuit board. For example, the power supply requirements of a load circuit may change. In view of this, embodiments of this application provide a circuit board device, an electronic device, and a circuit board to expand the power supply applications of the circuit board's power supply paths.

[0026] For example, Figure 1 A schematic diagram of a circuit board device according to an embodiment of this application is shown.

[0027] like Figure 1 As shown, the circuit board assembly includes circuit board 10 and circuit board 20. Circuit board 10 may include substrate 100, port 110, port 120, and trace 130. Ports 110 and 120 are disposed on a first side of substrate 100, and trace 130 is disposed within substrate 100 and connects to ports 110 and 120. Circuit board 20 may include substrate 200, port 230, port 240, port 250, port 260, power supply path 270, and power supply path 280. Ports 230 and 240 are disposed on a first side of substrate 200, ports 250 and 260 are disposed on a second side of substrate 200, and power supply paths 270 and 280 are disposed within substrate 200. Power supply path 270 connects to ports 230 and 250, and power supply path 280 connects to ports 240 and 260. Port 110 is connected to port 250, and port 120 is connected to port 260.

[0028] In circuit board 20, power path 270 can be used to power port 230, and power path 280 can be used to power port 240. The trace 130 of circuit board 10 can connect power paths 270 and 280, allowing both power paths 270 and 280 to be used to power both ports 230 and 240. One of power paths 270 and 280 can be selected for powering both ports 230 and 240, thereby expanding the power supply applications of circuit board 20 without changing the traces. Selecting a power path to power different ports saves on power supply circuitry. Furthermore, port power supply merging near the ports is more efficient than port power supply merging at the power path level (e.g., connecting power paths by soldering resistors).

[0029] In the embodiments of this application, ports are distinguished based on their purpose (e.g., the power supply path to be connected), therefore ports are described by class in the description, and their number is only schematically shown in the drawings. A class of ports may include one or more physical ports. For example, five ports 230 are schematically shown in the drawings of this application; however, the embodiments are not limited thereto. Port 230 or a type of port 230 may include one or more ports.

[0030] In this embodiment, the trace 130 is connected to the power supply path 270 through port 250, and can be used to power port 240 through ports 260 and 240; or, the trace 130 is connected to the power supply path 280 through port 260, and can be used to power port 230 through ports 250 and 230.

[0031] In this embodiment, circuit board 20 may include a main circuit board for carrying integrated circuits, such as various chips. The integrated circuit may include load circuits. Ports 230 and 240 of circuit board 20 may be connected to the power supply terminals of different load circuits, and power supply paths 270 and 280 of circuit board 20 may be used to power different load circuits. A first side of the substrate 200 of circuit board 20 may be used to carry the integrated circuit, and a second side of the substrate 200 of circuit board 20 may be used to connect to circuit board 10. Circuit board 10 may include an adapter board. Through the arrangement of circuit board 10, power supply paths 270 and 280 can both be used to power the load circuits connected to ports 230 and 240, thereby allowing selection of a power supply path to power different ports, supporting the merging of power supplies for two load circuits, and saving power circuitry required for power supply. A first side of the substrate 100 of circuit board 10 may be used to connect to circuit board 20, and a second side of the substrate 100 of circuit board 10 is opposite to the first side. The first side of substrates 100 and 200 can be referred to as the top surface or TOP surface, and the second side of substrates 100 and 200 can be referred to as the bottom surface or BOT surface.

[0032] For example, during the die return testing phase, if you want to assess the feasibility of merging the power supply on the main circuit board, you can use an adapter board to quickly assess the risks of merging the power supply without changing the original hardware system design of the main circuit board, without having to redesign the main circuit board, which can save assessment time and material costs.

[0033] For example, during mass production, it may be desirable to consolidate the power supply of the main circuit board to achieve higher performance or cost benefits. The main circuit board has already been manufactured but its power supply is not integrated. An adapter board can be used to consolidate the power supply of the already manufactured main circuit board.

[0034] In this embodiment, trace 130 is connected to power supply path 270 via port 250, and can supply power to the load circuit connected to port 240 via ports 260 and 240; or, trace 130 is connected to power supply path 280 via 260, and can supply power to the load circuit connected to port 230 via ports 250 and 230.

[0035] For example, by merging the power supply to circuit board 20 via circuit board 10, one of power supply paths 270 and 280 can be selected to power the load circuits connected to ports 230 and 240. For instance, power supply path 270 can be selected to power both the load circuits connected to ports 230 and 240; the power supply circuit corresponding to power supply path 280 can be turned off or omitted; alternatively, power supply path 280 can be selected to power both the load circuits connected to ports 230 and 240, and the power supply circuit corresponding to power supply path 270 can be turned off or omitted. Turning off the power supply circuit reduces power consumption. Omitting the power supply circuit reduces material costs and power consumption.

[0036] For example, the power management integrated circuit (PMIC) may include power circuitry corresponding to power supply path 270 and power supply circuitry corresponding to power supply path 280. The power management chip may include Buck and / or LDO (Low-dropout regulator) circuitry. Shutting down the power supply circuitry can be achieved by shutting down the output port corresponding to that power supply circuitry within the power management chip. For example, the power management chip can be actively controlled to shut down the output port. Alternatively, the output port can be shut down by not connecting (e.g., soldering) the inductor to the output port.

[0037] For example, a power management chip may include one of a power supply circuit corresponding to power supply path 270 and a power supply circuit corresponding to power supply path 280. The power supply circuit corresponding to the other may be omitted, thereby reducing the number of power management chips, the number of power supply circuits in the power management chips, or the number of output ports of the power management chips.

[0038] Optionally, circuit board 20 can host integrated circuits. For example, Figure 2A schematic diagram of another circuit board arrangement according to an embodiment of this application is shown. This circuit board arrangement further includes an integrated circuit 30, which includes a load circuit 310 and a load circuit 320. Port 230 is used to connect to the power supply terminal of the load circuit 310, and port 240 is used to connect to the power supply terminal of the load circuit 320. Power supply path 270 is used to supply power to the load circuit 310, and power supply path 280 is used to supply power to the load circuit 320. The integrated circuit 30 may include a System on Chip (SOC). Optionally, the circuit board 20 may be used to carry multiple integrated circuits. For example, Figure 3 A schematic diagram of another circuit board device according to an embodiment of this application is shown. The circuit board device further includes integrated circuit 31 and integrated circuit 32. Integrated circuit 31 includes a load circuit 311, and integrated circuit 32 includes a load circuit 321. Port 230 is used to connect to the power supply terminal of the load circuit 311, and port 240 is used to connect to the power supply terminal of the load circuit 321. Power supply path 270 is used to supply power to the load circuit 311, and power supply path 280 is used to supply power to the load circuit 321.

[0039] In this embodiment, the adapter board can combine the power supplies of three or more ports on the main circuit board. Optionally, the circuit board 10 may further include a first other port disposed on a first side of the substrate 100, and traces 130 connect port 110, port 120, and the first other port. The circuit board 20 may further include a second other port, a third other port, and other power supply paths. The second other port is disposed on the first side of the substrate 200, the third other port is disposed on the second side of the substrate 200, and the other power supply paths include at least one power supply path disposed within the substrate 200, wherein at least a portion of the second other port is connected to at least a portion of the third other port. The first other port of the circuit board 10 may be connected to the third other port of the circuit board 20 to complete the merging of power supplies for three or more ports.

[0040] In this embodiment, the adapter board may further include a filtering circuit. For example, Figure 4 A schematic diagram of another circuit board device according to an embodiment of this application is shown. The circuit board 10 may further include a filter circuit 140 disposed on a first side or a second side of the substrate 100. Noise may occur during the process of powering the load circuit from the circuit board 20, possibly originating from the power supply or other sources. Providing a filter circuit to the circuit board 20 can reduce noise. The circuit board 10 connects the power supply path and port of the circuit board 20. The filter circuit 140 disposed in the circuit board 110 can be used to filter noise during the process of powering the load circuit from the circuit board 20, and can save the need for a separate filter circuit on the circuit board 20. For example, in the circuit board 20, on the second side of the substrate 200, a filter circuit may not be disposed in the projection area of ​​the integrated circuit or the circuit board 10.

[0041] For example, refer to Figure 4 The filter circuit 140 can be disposed on the second side of the substrate 100. For example, the circuit board 10 may also include a port disposed on the second side of the substrate 100 for connecting to the filter circuit 140, and this port is connected to the trace 130. The trace 130 can connect the filter circuit 140 and the circuit board 20. The filter circuit 140 is disposed on the side of the substrate 100 that is not opposite to the circuit board 20, and is less constrained by space, allowing for flexible selection of its size.

[0042] For example, the filter circuit 140 may be disposed on a first side of the substrate 100. For instance, the circuit board 10 may also include a port disposed on the first side of the substrate 100 for connection to the filter circuit 140, and this port is connected to a trace 130. The trace 130 may connect the filter circuit 140 and the circuit board 20. Disposing the filter circuit 140 on the side of the substrate 100 opposite to the circuit board 20 allows for a more compact circuit board arrangement.

[0043] In this embodiment, ports 230 and 240 can share the filter circuit 140. The circuit board 10 can connect ports 230 and 240, so that the filter circuit 140 can be shared by ports 230 and 240, which improves the utilization rate of the filter circuit 10. Compared with setting an independent filter circuit for each port, the number of filter circuits can be reduced, the setting of filter circuits can be simplified, and the increased cost caused by setting multiple filter circuits for different load circuits can be avoided.

[0044] In this embodiment, the filter circuit 140 may include a capacitor. The capacitance value of the filter circuit 140 is determined based on port 230 and / or its connected load circuit, and port 240 and / or its connected load circuit. The filter circuit filters power supply noise through the capacitor, and the capacitance value corresponds to the filtering capability of the capacitor. The capacitance value of the filter circuit is determined based on the power supply combined port and / or load circuit, and can simultaneously provide noise filtering for the power supply combined port and / or load circuit.

[0045] Optionally, the capacitance value of the filter circuit is less than or equal to the sum of the capacitance values ​​required by the load circuit connected to port 230 and the load circuit connected to port 240. Ports 230 and 240 share the filter circuit 140. Compared to the case where ports 230 and 240 are connected to filter circuits separately, the capacitance value of the filter circuit 140 is usually less than the sum of the capacitance values ​​required by the filter circuits connected to the ports separately, thereby reducing the capacitance requirement of the filter circuit.

[0046] Furthermore, even in extreme cases where the capacitance value of the filter circuit 140 equals the sum of the capacitance values ​​required by the filter circuits connected to each port, the filter circuit 140 can select capacitors based on the overall capacitance requirement of the ports, offering greater flexibility in capacitor selection. Moreover, due to this flexibility, the actual capacitance value of the filter circuit 140 may still be less than the capacitance values ​​of the filter circuits connected to each port. For example, if each port requires a filter circuit with a capacitance value of C1, the minimum selectable capacitance value for a capacitor or group of capacitors (i.e., multiple capacitors) within the range greater than or equal to C1 is C2, where C2 > C1. Thus, at least a filter circuit with a capacitance value of C2 is selected for each port. The capacitance value of the filter circuit 140 can then be selected as C3, which can fall within the range [2C1, 2C2].

[0047] Optionally, the number of capacitors in the filter circuit is less than or equal to the sum of the number of capacitors required by the load circuit connected to port 230 and the number of capacitors required by the load circuit connected to port 240.

[0048] For the same or one type of capacitor, based on smaller capacitance values ​​or more flexible capacitor selection methods, the port-shared filter circuit can have a smaller number of capacitors required, saving on the cost of the required capacitors.

[0049] In this embodiment, the port connection method can include a fixed connection method and a detachable connection method. A fixed connection method can include soldering, etc. A detachable connection method can include pins, etc. For example, the port connection between circuit board 10 and circuit board 20 can be a fixed connection method to prevent loosening between them. For example, the port connection between circuit board 10 and circuit board 20 can be a detachable connection method; for example, circuit board 10 can be detached from circuit board 20 during use or testing, and another adapter board can be connected to circuit board 20 to enable the use or testing of different power supply schemes and improve replacement efficiency.

[0050] This application also provides a circuit board. The circuit board may include circuit board 10, which serves as a connector for circuit board 20 in testing or the final product. The descriptions of circuit boards 10 and 20 in other embodiments are available and will not be repeated here.

[0051] Figure 5 A comparative diagram of the power supply schemes is shown. (Refer to...) Figure 5 In (a), on the main circuit board 1, ports 103 and 104 are powered by power supply paths 101 and 102, respectively. (Refer to...) Figure 5(b) The main circuit board 2 can be redesigned and manufactured so that ports 203 and 204 are both powered by power supply path 201. However, redesigning and manufacturing the main circuit board 2 incurs additional time and material costs. For example, during the evaluation and optimization of power supply schemes, multiple merging schemes may be proposed to fully verify feasibility, and redesigning and manufacturing the main circuit board for each merging scheme would severely impact the evaluation efficiency of the merging schemes. (Refer to...) Figure 5 (c) In the main circuit board 3, if ports 303 and 304 are powered by power supply paths 301 and 302 respectively, the power supply paths 301 and 302 can be combined by connecting them via connector 305 (e.g., a resistor). However, this combination at the power supply path is insufficient. See reference... Figure 5 (d) According to an embodiment of this application, in the main circuit board 4, when power supply paths 401 and 402 are connected to ports 403 and 404 respectively, a more efficient power supply combination can be achieved by connecting ports 403 and 404 through the adapter board 406 provided on the BOT side.

[0052] This application also provides an electronic device, which can be found in [reference 1]. Figure 6 . Figure 6 A schematic diagram of an electronic device according to an exemplary embodiment of this application is shown. (As...) Figure 6 As shown, the electronic device 600 may include any of the above-mentioned circuit boards 610 or circuit board devices 620.

[0053] This application does not limit the type of electronic device. For example, according to some embodiments, the electronic device may include wearable devices. Wearable devices include, but are not limited to: head-mounted devices (e.g., helmets or hats), devices worn on the ears (e.g., headphones), devices worn on the wrist (e.g., watches), and devices worn on other parts of the body (e.g., electronic necklaces, medical monitoring devices, or glasses). According to some embodiments, the electronic device may include portable terminals. For example, the electronic device may include, but is not limited to, mobile phones, general-purpose computing devices (e.g., laptops or tablets), personal digital assistants, etc. According to some embodiments, the electronic device may include other types of edge devices, such as personal computers, in-vehicle computers or in-vehicle computing platforms, or smart home electronic products. According to some embodiments, the electronic device may also include devices such as servers.

[0054] In the above embodiments, the descriptions of different embodiments each have their own emphasis. Parts not described in detail or recorded in a certain embodiment can be referred to in the relevant descriptions of other embodiments. Furthermore, the different embodiments described above can be freely combined as needed. Moreover, as technology evolves, the elements described in this application can be replaced by equivalent elements appearing after this application.

Claims

1. A circuit board device, characterized in that, include: The first circuit board includes a first substrate, a first port, a second port, and a first trace, wherein the first port and the second port are disposed on a first side of the first substrate, and the first trace is disposed within the first substrate and connects the first port and the second port; The second circuit board includes a second substrate, a third port, a fourth port, a fifth port, a sixth port, a first power supply path, and a second power supply path. The third port and the fourth port are disposed on a first side of the second substrate, and the fifth port and the sixth port are disposed on a second side of the second substrate. The first power supply path and the second power supply path are disposed within the second substrate, and the first power supply path connects to the third port and the fifth port, while the second power supply path connects to the fourth port and the sixth port. The first port is connected to the fifth port, and the second port is connected to the sixth port.

2. The circuit board device according to claim 1, characterized in that, The first trace is connected to the first power supply path through the fifth port, and supplies power to the load circuit connected to the fourth port through the sixth port and the fourth port; Alternatively, the first trace can be connected to the second power supply path via the sixth port, and the load circuit connected to the third port can be powered via the fifth port and the third port.

3. The circuit board device according to claim 1 or 2, characterized in that, The first circuit board also includes: A filter circuit is disposed on the second side of the first substrate.

4. The circuit board device according to claim 3, characterized in that, The third port and the fourth port share the same filtering circuit.

5. The circuit board device according to claim 3, characterized in that, The filter circuit includes a capacitor, the capacitance value of which is determined based on the third port and / or the load circuit connected to it, and the fourth port and / or the load circuit connected to it.

6. An electronic device comprising a circuit board assembly as claimed in any one of claims 1 to 5.

7. A circuit board, characterized in that, As a first circuit board used as a connector to a second circuit board, the second circuit board includes a first power supply circuit and a second power supply path. The first power supply path is used to supply power to a first load circuit, and the second power supply path is used to supply power to a second load circuit. The first circuit board includes: First substrate; A first port and a second port are disposed on a first side of the substrate. The first port is used to connect to the power supply terminal of the first load circuit, and the second port is used to connect to the power supply terminal of the second load circuit. A first trace is disposed within the first substrate, wherein the first trace connects the first port and the second port.

8. The circuit board according to claim 7, wherein the first trace is used to connect the first power supply path to supply power to the second load circuit, or the first trace is used to connect the second power supply path to supply power to the first load circuit.

9. The circuit board according to claim 7 or 8, further comprising: A filter circuit is disposed on the second side of the first substrate, with the first side and the second side facing each other.

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