CN210867192U - Power supply structure of double circuit boards and electronic equipment - Google Patents
Power supply structure of double circuit boards and electronic equipment Download PDFInfo
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- CN210867192U CN210867192U CN201922252648.9U CN201922252648U CN210867192U CN 210867192 U CN210867192 U CN 210867192U CN 201922252648 U CN201922252648 U CN 201922252648U CN 210867192 U CN210867192 U CN 210867192U
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Abstract
The utility model discloses a power supply structure and electronic equipment of double circuit board, include: the power supply voltage transformation and switch control module B and the power supply voltage transformation and switch control module A on the mainboard are electrically connected with the high-power load A on the power supply board through a bidirectional power supply network; the power panel is electrically connected with the power transformation and switch control module A of the mainboard through a control signal line. By adopting a bidirectional power supply network capable of bidirectionally supplying power between a main board and a power supply board which are separately arranged, the power supply between the two boards is realized by a narrower flexible flat cable or a flexible circuit board, and the cost of the whole machine and the assembly difficulty can be reduced; through the control signal line, the power transformation and the switch control module A, the static electricity consumption of each module on the mainboard can be avoided when the battery supplies power.
Description
Technical Field
The utility model relates to an adopt the power supply field of the electronic equipment of double circuit board, especially relate to a power supply structure and electronic equipment of double circuit board.
Background
At present, in the design process of some embedded electronic devices with batteries, due to reasons such as structure and heat dissipation, a power supply board and a power consumption part of a main board need to be separately arranged on two different PCB boards, meanwhile, the batteries need to be arranged on the main board side, and the main board and the power supply board are both provided with high-power devices. For example, smart speaker systems often require such an arrangement because the speaker power amplifier and the CPU are the largest power loads and heat sources.
In the prior art, as shown in fig. 1, a power network a supplies power from a power board to a motherboard when an external power input is connected, at this time, power supplied to a high-power load a on the power board is provided by a circuit formed by two diodes, and when the external power input is disconnected, power transmission from the motherboard to the power board is realized by a power network B.
In the prior art, the power network needs to provide a large current, and needs to use a wire for transmission, or uses an FFC (flexible flat cable) or an FPC (flexible circuit board) for transmission, which occupies a large number of wires and connector pins, so that the power network a and the power network B both use this method, which results in the problem of occupying duplicate hardware resources for power supply.
SUMMERY OF THE UTILITY MODEL
Based on the problem that prior art exists, the utility model aims at providing a two circuit board layout structure and electronic equipment can solve and separately arrange the scheme of power supply board and the power consumptive part of mainboard in the current, adopts power network A and power network B respectively, has the problem that occupies the power supply hardware resource of duplicate.
The utility model aims at realizing through the following technical scheme:
the utility model discloses embodiment provides a dual circuit board layout structure, include: the power supply voltage transformation and control module B and the power supply voltage transformation and switch control module A on the mainboard are electrically connected with the high-power load A on the power supply board through a bidirectional power supply network;
the power strip pass through the control signal line with the power vary voltage and the electrical connection of on-off control module A of mainboard the utility model discloses embodiment provides an electronic equipment, adopts double circuit board layout structure.
By the foregoing the utility model provides a technical scheme can see out, the embodiment of the utility model provides a double circuit board layout structure and electronic equipment, its beneficial effect is:
the bidirectional power network is arranged between the main board and the power panel to supply power for a high-power load, and the control signal line is arranged between the power panel and the main board, so that bidirectional transmission of the power supplied by the bidirectional power network can be realized, and the electric connection hardware resources between the main board and two PCB boards of the power panel which are separately arranged are reduced, thereby achieving the purposes of saving cost and assembling difficulty.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a dual circuit board layout architecture provided by the prior art;
fig. 2 is a schematic diagram of a dual circuit board layout structure according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the specific contents of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
As shown in fig. 2, an embodiment of the present invention provides a dual circuit board layout structure, including: the power supply voltage transformation and control module B and the power supply voltage transformation and switch control module A on the mainboard are electrically connected with the high-power load A on the power supply board through a bidirectional power supply network;
the power panel is electrically connected with the power transformation and switch control module A of the mainboard through a control signal line
In the power supply structure, the power transformation and switch control module A adopts a chip with an enabling signal or a power transformation and control module of a switch. The power transformation and switch control module A can be used for performing switch control by taking a voltage signal sent by the power panel as a control signal and is turned on or turned off according to the control.
In the above power supply structure, the bidirectional power supply network includes: a first power supply line 1, a second power supply line 2, and a common power supply line 3;
one end of the first power supply line is electrically connected with a power supply transformation and switch control module A on the mainboard;
one end of the second power supply line is electrically connected with the power supply transformation and control module B on the mainboard, and a diode D1 is arranged on the second power supply line;
the other end of the first power supply line is electrically connected to the other end of the second power supply line as a common connection point;
one end of the common power supply line is electrically connected to the common connection point, and the other end of the common power supply line is electrically connected to the high-power load A on the power panel.
The bidirectional power supply network of the structure is matched with a chip with an enabling signal or a switching element to realize the switch-controllable power supply transformation and switch control module A, thus, when the power input terminal is inserted, power is supplied to the mainboard from the power panel through the bidirectional power network, the control signal line provides a voltage signal as a control signal to enable the power transformation and switch control module A to work, the power is supplied to a high-power load B on the mainboard for use through the power transformation and switch control module A, when no power supply is plugged in, the power supply is supplied to a high-power load A on the power supply board by a battery on the mainboard through a power supply transformation and control module B and a diode D1, at the moment, the control signal line has no voltage signal as a control signal, the power transformation and switch control module a is turned off to prevent a loop circuit from being formed between modules on the motherboard.
The bidirectional power supply network with the structure is composed of the separated elements and the circuits, bidirectional power supply can be realized between the mainboard and the power panel which are separately arranged by only using one power supply line and one control signal line, the bidirectional power supply network is convenient to implement, and the bidirectional power supply network can be conveniently adjusted according to the voltage and current requirements of different mainboards and power panels.
In the power supply structure, the diodes on the first power supply line, the second power supply line and the second power supply line are all arranged on the mainboard;
the common power supply line is connected between the power panel and the main board.
The embodiment of the utility model provides a still provide an electronic equipment, be equipped with separately the mainboard and the power strip that set up in this electronic equipment, the adoption is the power supply structure of foretell double circuit board between mainboard and the power strip.
The embodiments of the present invention will be described in further detail below.
As shown in fig. 2, an embodiment of the present invention provides a dual circuit board layout structure, in which a second power supply line provided with a diode D1 is disposed on a main board, so that the second power supply line, a first power supply line and a common power supply line are organically connected to form a bidirectional power supply network between the main board and a power supply board, and on the main board and the power supply board, two power supply lines where diodes D1 and D2 are located form a power supply selection structure of a high-power load a on the power supply board;
a control signal line is led out from a power input terminal, a chip with an enabling signal or a power transformation and switch control module with a switch element for increasing a control function is adopted on a power transformation and switch control module A of the mainboard, the power transformation and switch control module A is controlled by the control signal led out from the power input terminal, and a power supply path is changed into a bidirectional power network for supplying power.
When the power adapter is plugged in, the power supply supplies power to the mainboard through the bidirectional power network, and when the power adapter is pulled out, the current of the battery is supplied to a high-power load A on the power panel through a path 'power transformation and control module B- > diode D1- > bidirectional power network'.
In order to avoid static electricity consumption caused by the cycle of discharging and charging the battery among the modules (comprising a power supply and control module A, a power supply transformation and control module B, a power supply management unit, a battery and a diode D1) arranged on the mainboard. The utility model discloses a set up the control signal line, use the voltage signal of power input terminal department to control power vary voltage and on-off control module A as control signal, can be when the power strip does not have the power to insert, close power vary voltage and on-off control module A, avoided forming the circulation of static electric quantity consumption between each module on the mainboard. In addition, the introduced control signal does not need large current, and only needs to occupy the position of one wire on an FFC (flexible flat cable) or an FPC (flexible circuit board), so that the increased hardware cost can be ignored.
In the system with the embedded battery equipment, which is designed by separately designing the power panel and the mainboard, the scheme is used for connecting the power panel and the mainboard through a bidirectional power supply network, bidirectional electricity transmission can be carried out through a common power supply line, the circuit used by the power supply network between the power panel and the two PCBs of the mainboard can be reduced, the hardware cost and the circuit complexity are reduced, the static electricity consumption formed by the charge-discharge circulation between the modules on the mainboard caused by the bidirectional power supply network is also avoided by arranging a control signal line and a power transformation and switch control module A which can be controlled by a switch, and the power supply structure can achieve the purposes of saving the cost and the assembly difficulty.
The embodiment of the utility model provides an in the branch board system that this kind of mainboard and power strip separately set up, can be under the prerequisite of guaranteeing former power supply logic and timing stability, can replace original two one-way power networks through the two-way power network that adopts the two-way power supply that can be between mainboard and power strip, realize realizing the electricity with narrower FFC (flexible flat cable) or FPC (flexible circuit board) realize the electricity between two boards to be connected, and then reduce the complete machine cost and assemble the degree of difficulty.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A power supply structure of a dual circuit board, comprising: the power supply voltage transformation and switch control module B and the power supply voltage transformation and switch control module A on the mainboard are electrically connected with the high-power load A on the power supply board through a bidirectional power supply network;
the power panel is electrically connected with the power transformation and switch control module A of the mainboard through a control signal line.
2. The power supply structure of dual circuit boards as claimed in claim 1, wherein the power transforming and switch controlling module a is a power transforming and controlling module of a chip or a switch with an enable signal.
3. The dual circuit board supply structure of claim 1 or 2, wherein the bidirectional power supply network comprises: a first power supply line, a second power supply line, and a common power supply line;
one end of the first power supply line is electrically connected with a power supply transformation and switch control module A on the mainboard;
one end of the second power supply line is electrically connected with the power supply transformation and control module B on the mainboard, and a diode is arranged on the second power supply line;
the other end of the first power supply line is electrically connected to the other end of the second power supply line as a common connection point;
one end of the common power supply line is electrically connected to the common connection point, and the other end of the common power supply line is electrically connected to the high-power load A on the power panel.
4. The dual circuit board supply structure according to claim 3, wherein the diodes on the first and second power supply lines and the second power supply line are provided on the main board;
the common power supply line is connected between the power panel and the main board.
5. An electronic device, characterized in that a main board and a power board are separately arranged in the electronic device, and the power supply structure of the double circuit board according to any one of claims 1 to 4 is adopted between the main board and the power board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922252648.9U CN210867192U (en) | 2019-12-16 | 2019-12-16 | Power supply structure of double circuit boards and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922252648.9U CN210867192U (en) | 2019-12-16 | 2019-12-16 | Power supply structure of double circuit boards and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210867192U true CN210867192U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922252648.9U Active CN210867192U (en) | 2019-12-16 | 2019-12-16 | Power supply structure of double circuit boards and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210867192U (en) |
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2019
- 2019-12-16 CN CN201922252648.9U patent/CN210867192U/en active Active
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