CN111542165B - Electrostatic protection system, method, electronic device and storage medium - Google Patents
Electrostatic protection system, method, electronic device and storage medium Download PDFInfo
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- CN111542165B CN111542165B CN202010601531.1A CN202010601531A CN111542165B CN 111542165 B CN111542165 B CN 111542165B CN 202010601531 A CN202010601531 A CN 202010601531A CN 111542165 B CN111542165 B CN 111542165B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application provides an electrostatic protection system, an electrostatic protection method, electronic equipment and a storage medium, wherein the system comprises: PCB, electric capacity module, first switch, PCB is including leaking copper and going the line, leaks copper to walk the line and be located between the outline and the interior frame of PCB, leaks copper to walk the line and be connected with the input of electric capacity module through first switch, and the output of electric capacity module is used for being connected with the system battery. The copper leakage wiring is used for absorbing static electricity and guiding the static electricity into the first switch; the first switch is used for guiding static electricity in the copper leakage wiring to the capacitor module in one direction; the capacitor module is used for storing static electricity and leading the static electricity into the system battery so as to release the static electricity. The electrostatic protection capability of the electronic product is improved.
Description
Technical Field
The present application relates to the field of terminal devices, and in particular, to an electrostatic protection system, an electrostatic protection method, an electronic device, and a storage medium.
Background
The current electronic devices are miniaturized, and the electrostatic voltage which may cause electrostatic discharge damage is also reduced. The electrostatic protection of a printed circuit board (Printed Circuit Board, PCB) is a point discharge phenomenon, and according to the current flow direction, the high voltage area flows to the low voltage area, i.e. the high voltage area moves to the low voltage area, while for a PCB plane, the edge of the PCB is the low voltage area of the whole board, and normal body contact or electrostatic discharge (ESD) test can generate instant high voltage and electrostatic discharge, so that in order to perform electrostatic protection of the PCB, it is necessary to want to release the energy generated by the high voltage to the outside of the board, so as to avoid entering the board, and thus reduce the damage of the parts in the board due to the high voltage.
In the prior art, an electrostatic protection mode for an electronic product is mainly to introduce external static electricity into a ground network of the electronic product system through a wire or a transient diode (Transient Voltage Suppressor, TVS) and the like to release the static electricity.
However, in the prior art, if the impedance of the ground network of the system is too large, static electricity may be directly transmitted into the chip through the signal, and cause fatal damage to the chip.
Disclosure of Invention
The application provides an electrostatic protection system, an electrostatic protection method, electronic equipment and a storage medium, which improve the electrostatic protection capability of electronic products.
In a first aspect, an embodiment of the present application provides an electrostatic protection system, including: the circuit comprises a Printed Circuit Board (PCB), a capacitor module and a first switch.
The PCB comprises a copper leakage wiring, the copper leakage wiring is positioned between an outer frame and an inner frame of the PCB, the copper leakage wiring is connected with an input end of the capacitor module through a first switch, and an output end of the capacitor module is used for being connected with a system battery.
The copper leakage wiring is used for absorbing static electricity and guiding the static electricity into the first switch; the first switch is used for guiding static electricity in the copper leakage wiring to the capacitor module in one direction; the capacitor module is used for storing static electricity and leading the static electricity into the system battery so as to release the static electricity.
In the embodiment of the application, the copper leakage wiring is arranged in the PCB, static electricity is absorbed through the copper leakage wiring, then the static electricity in the copper leakage wiring is led to the capacitor module in one direction through the first switch, so that the storage of the static electricity is realized, the static electricity is led into the system battery, the release of the static electricity is realized, the static electricity is prevented from flowing into the system circuit, the damage of the static electricity to the chip is further avoided, and the static electricity protection capability of an electronic product is improved.
In one possible implementation manner, the electrostatic protection system provided by the embodiment of the application further comprises a controller and a second switch.
The input end of the second switch is connected with the output end of the capacitor module, and the first output end of the second switch is used for being connected with the system battery.
The controller is connected with the capacitor module and the second switch respectively, and is used for monitoring the electric charge quantity of the capacitor module, and if the electric charge quantity of the capacitor module reaches a preset threshold value, the first output end of the second switch is controlled to be conducted with the system battery.
In the embodiment of the application, the second switch is arranged to connect the capacitor module and the system battery, and the controller is used for monitoring the charge quantity of the capacitor module, so that the second switch is controlled to be conducted with the system battery when the charge quantity reaches the preset threshold value, the static electricity in the capacitor module is released through the system battery, and the stability of the electronic product is improved.
In one possible implementation manner, the electrostatic protection system provided in the embodiment of the present application, the second switch further includes a second output terminal.
The second output end of the second switch is connected with a charging interface of the system, and the charging interface is connected with the controller; the controller is used for monitoring the working state of the charging interface, and if the working state of the charging interface is a connection state, the second output end of the second switch is controlled to be conducted with the charging interface.
In the embodiment of the application, the second output end of the second switch is connected with the charging interface of the system, the controller monitors the working state of the charging interface, and when the working state of the charging interface is in a connection state, namely the charging interface is connected with charging equipment, the second output end of the second switch is controlled to be conducted with the charging interface, so that the static electricity in the capacitor module is released through the charging interface, and the static electricity is further prevented from flowing into a system circuit of an electronic product.
In one possible implementation, the second switch includes a first N-type Metal-Oxide-Semiconductor (NMOS) tube and a second NMOS tube;
the drain electrode of the first NMOS tube and the drain electrode of the second NMOS tube are respectively connected with the output end of the capacitor module, the grid electrode of the first NMOS tube and the grid electrode of the second NMOS tube are respectively connected with the controller, the source electrode of the first NMOS tube is connected with the system battery, and the source electrode of the second NMOS tube is connected with the charging interface.
In one possible implementation, if the controller inputs a high signal to the gate of the first NMOS transistor, the first NMOS transistor is turned on with the system battery.
If the controller inputs a high-level signal to the grid electrode of the second NMOS tube, the second NMOS tube is conducted with the charging interface.
In one possible embodiment, the first switch includes: a diode; the anode of the diode is connected with the drain copper wiring, and the cathode of the diode is connected with the input end of the capacitor module.
The following describes a method, an electronic device, a computer readable storage medium, and a computer program product provided by the embodiments of the present application, and the content and effects thereof may refer to the electrostatic protection system provided by the embodiments of the present application, which are not described herein.
In a second aspect, an embodiment of the present application provides an electrostatic protection method, which is applied to the electrostatic protection system provided in the first aspect and the optional manner of the first aspect, and includes:
monitoring whether the charge quantity of the capacitor module reaches a preset threshold value; and if the charge quantity of the capacitor module reaches a preset threshold value, controlling the first output end of the second switch to be conducted with the system battery so as to release static electricity through the system battery.
In one possible implementation manner, the electrostatic protection system provided by the embodiment of the present application further includes:
and monitoring the working state of a charging interface of the system.
And if the working state of the charging interface is a connection state, controlling the second output end of the second switch to be conducted with the charging interface so as to release static electricity through the charging interface.
In a third aspect, an embodiment of the present application provides an electronic device, including an electrostatic protection system as provided in the first aspect or the realizable manner of the first aspect.
In a fourth aspect, embodiments of the present application provide a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform an electrostatic protection method as provided by the second aspect or the realizable implementation of the second aspect.
In a fifth aspect, embodiments of the present application provide a computer program product comprising: executable instructions for implementing the electrostatic protection method as provided in the second aspect or the alternative of the second aspect.
The application provides an electrostatic protection system, an electrostatic protection method, electronic equipment and a storage medium, wherein the system comprises the following components: the circuit comprises a Printed Circuit Board (PCB), a capacitor module and a first switch. The PCB comprises a copper leakage wiring, the copper leakage wiring is positioned between an outer frame and an inner frame of the PCB, the copper leakage wiring is connected with an input end of the capacitor module through a first switch, and an output end of the capacitor module is used for being connected with a system battery. The copper leakage wiring is used for absorbing static electricity and guiding the static electricity into the first switch; the first switch is used for guiding static electricity in the copper leakage wiring to the capacitor module in one direction; the capacitor module is used for storing static electricity and leading the static electricity into the system battery so as to release the static electricity. In the embodiment of the application, the copper leakage wiring is arranged in the PCB, static electricity is absorbed through the copper leakage wiring, then the static electricity in the copper leakage wiring is led to the capacitor module in one direction through the first switch, so that the storage of the static electricity is realized, the static electricity is led into the system battery, the release of the static electricity is realized, the static electricity is prevented from flowing into the system circuit, the damage of the static electricity to the chip is further avoided, and the static electricity protection capability of an electronic product is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is an exemplary application scenario diagram provided by an embodiment of the present application;
FIG. 2 is a schematic diagram of an electrostatic protection system according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an electrostatic protection system according to another embodiment of the present application;
FIG. 4 is a schematic structural diagram of an electrostatic protection system according to another embodiment of the present application;
FIG. 5 is a schematic diagram of a second switch according to another embodiment of the present application;
FIG. 6 is a flow chart of an electrostatic protection method according to an embodiment of the application;
FIG. 7 is a flow chart of an electrostatic protection method according to another embodiment of the present application;
fig. 8 is a schematic flow chart of an electrostatic protection device according to an embodiment of the application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The current electronic devices are miniaturized, and the electrostatic voltage which may cause electrostatic discharge damage is also reduced. For a PCB plane, the edge of the PCB is the low potential area of the whole board, and normal body contact or ESD test can generate instant high voltage and electrostatic discharge. In the prior art, an electrostatic protection mode for an electronic product is mainly to introduce external static electricity into a ground network of an electronic product system through a wire or a transient diode TVS and the like to release the static electricity. However, if the impedance of the network of the system is too high, static electricity may be directly transmitted into the chip through the signal, and cause fatal damage to the chip.
The application conception of the electrostatic protection system, the method, the electronic equipment and the storage medium provided by the embodiment of the application is that firstly, the copper leakage wiring is arranged in the PCB so as to absorb static electricity through the copper leakage wiring, then the static electricity in the copper leakage wiring is led into the capacitance module in one direction through the switch, the storage of the static electricity is realized through the capacitance module, and the stability of the static voltage is improved. And then the static electricity is led into a system battery of the electronic product, the static electricity is released through the grounding end of the system battery, the static electricity is prevented from flowing into a system circuit of the electronic product, the damage of the static electricity to a chip is further avoided, and the static electricity protection capability of the electronic product is improved.
In the following, an exemplary application scenario of an embodiment of the present application is described.
The electrostatic protection system provided by the embodiment of the application can be integrated in an electronic product, for example, the electronic product can be a terminal device, and the embodiment of the application does not limit the specific type of the terminal device, for example, the terminal device can be a smart phone, a personal computer, a tablet personal computer, a wearable device, a vehicle-mounted terminal, a monitoring device, a camera and the like. Fig. 1 is a schematic view of an exemplary application scenario provided in an embodiment of the present application, as shown in fig. 1, when a user uses a terminal device 10 (smart phone), static electricity may be generated due to dry fingers rubbing against a screen, or static electricity may be generated due to friction of the phone in a bag, a pocket, or the like. The presence of static electricity can seriously affect the performance of the terminal equipment, and thus, the terminal equipment needs to be protected against static electricity.
Fig. 2 is a schematic structural diagram of an electrostatic protection system according to an embodiment of the present application, and as shown in fig. 2, the electrostatic protection system according to an embodiment of the present application may include: the PCB, the capacitor module and the first switch.
The PCB comprises a copper leakage wiring, the copper leakage wiring is positioned between an outer frame and an inner frame of the PCB, the copper leakage wiring is connected with an input end of the capacitor module through a first switch, and an output end of the capacitor module is used for being connected with a system battery. The copper leakage wiring is used for absorbing static electricity and guiding the static electricity into the first switch; the first switch is used for guiding static electricity in the copper leakage wiring to the capacitor module in one direction; the capacitor module is used for storing static electricity and leading the static electricity into the system battery so as to release the static electricity.
The inner frame of the PCB is made of insulating materials, static electricity enters the copper leakage wiring through the outer frame, the copper leakage wiring absorbs the static electricity entering the outer frame, the static electricity is led into the capacitor module through the first switch, and the static electricity can be prevented from entering a system circuit in the PCB of the terminal equipment. The capacitor module absorbs static electricity and stores the static electricity, voltage generated by the static electricity is usually instant high voltage, the static electricity is led into the capacitor module, the instant high voltage can be converted into low voltage through the capacitor module, and the stability of the static electricity is improved. Static electricity is led into the system battery after passing through the capacitor module, and can be discharged through the system battery, so that the static electricity is further prevented from entering a system circuit in the PCB of the terminal equipment, and the system stability is improved.
The embodiment of the application does not limit the type, the model, the size and the like of the PCB. The embodiment of the application does not limit the circuit structure of the first switch, as long as the first switch can realize unidirectional flow of control charges. In one possible embodiment, the first switch comprises a diode; the anode of the diode is connected with the drain copper wiring, and the cathode of the diode is connected with the input end of the capacitor module. In the embodiment of the application, the diode is used as the first switch, the anode of the diode is connected with the drain copper wiring, and the cathode of the diode is connected with the input end of the capacitor module, so that the unidirectional flow of static electricity from the drain copper wiring to the capacitor module is ensured, the complexity of a system circuit is reduced, and the cost of the system is further reduced.
The capacitor module comprises a capacitor, and the embodiment of the application does not limit the type and the capacity of the capacitor.
In one possible implementation manner, the PCB may have a larger size or the usage scenario of the electronic product may be more susceptible to electrostatic interference, and in the electrostatic protection system provided by the embodiment of the present application, the electrostatic discharge capability of the PCB may be improved by setting a plurality of first switches and a plurality of capacitor modules. For example, the electrostatic protection system provided in the embodiment of the present application includes two first switches and two capacitance modules, where the first switch 1 may be connected to the capacitance module 1, the first switch 2 may be connected to the capacitance module 2, and the connection manner between the first switch and the capacitance module and other electronic devices may not be changed.
In the embodiment of the application, the copper leakage wiring is arranged in the PCB, static electricity is absorbed through the copper leakage wiring, then the static electricity in the copper leakage wiring is led to the capacitor module in one direction through the first switch, so that the storage of the static electricity is realized, the static electricity is led into the system battery, the release of the static electricity is realized, the static electricity is prevented from flowing into the system circuit, the damage of the static electricity to the chip is further avoided, and the static electricity protection capability of an electronic product is improved.
On the basis of the embodiment shown in fig. 2, fig. 3 is a schematic structural diagram of an electrostatic protection system according to another embodiment of the present application, and as shown in fig. 3, the electrostatic protection system according to the embodiment of the present application may further include a controller and a second switch.
The input end of the second switch is connected with the output end of the capacitor module, and the first output end of the second switch is used for being connected with the system battery. The controller is connected with the capacitor module and the second switch respectively, and is used for monitoring the electric charge quantity of the capacitor module, and if the electric charge quantity of the capacitor module reaches a preset threshold value, the first output end of the second switch is controlled to be conducted with the system battery.
The embodiment of the application does not limit the specific circuit structure of the second switch and does not limit the type of the controller. The input end of the second switch is connected with the output end of the capacitor module, the first output end of the second switch is used for being connected with the system battery, and charges in the capacitor module can be led into the system battery through the second switch so as to release the charges in the capacitor module. In order to further improve system stability and avoid that charges of the capacitor module are frequently led into the system battery, the embodiment of the application monitors the charge quantity of the capacitor module through the controller, and controls the first output end of the second switch to be conducted with the system battery when the charge quantity of the capacitor module reaches a preset threshold value so as to release the charges in the capacitor module through the system battery.
In the embodiment of the application, the second switch is arranged to connect the capacitor module and the system battery, and the controller is used for monitoring the charge quantity of the capacitor module, so that the second switch is controlled to be conducted with the system battery when the charge quantity reaches the preset threshold value, the static electricity in the capacitor module is released through the system battery, and the stability of the electronic product is improved.
On the basis of any one of the embodiments shown in fig. 2 or fig. 3, fig. 4 is a schematic structural diagram of an electrostatic protection system according to another embodiment of the present application, and as shown in fig. 4, the second switch of the electrostatic protection system according to the embodiment of the present application may further include a second output terminal.
The second output end of the second switch is connected with a charging interface of the system, and the charging interface is connected with the controller; the controller is used for monitoring the working state of the charging interface, and if the working state of the charging interface is a connection state, the second output end of the second switch is controlled to be conducted with the charging interface.
A charging interface is typically included in the terminal device for charging the terminal device, and the charge in the capacitive module may be released through a charging wire or other charging device when the terminal device is charged through the charging interface. Based on this, in the electrostatic protection system provided by the embodiment of the application, the second output end of the second switch is used for being connected with the charging interface of the system, the working state of the charging interface is monitored by the controller, and when the working state of the charging interface is the connection state, the second output end of the second switch is controlled to be conducted with the charging interface, so that the electrostatic discharge through the charging equipment is realized. In another possible embodiment, if the operating state of the charging interface is an off state, the second output terminal of the second switch may be controlled to be disconnected from the charging interface.
In the embodiment of the application, the second output end of the second switch is connected with the charging interface of the system, the controller monitors the working state of the charging interface, and when the working state of the charging interface is in a connection state, namely the charging interface is connected with charging equipment, the second output end of the second switch is controlled to be conducted with the charging interface, so that the static electricity in the capacitor module is released through the charging interface, and the static electricity is further prevented from flowing into a system circuit of an electronic product.
Fig. 5 is a schematic structural diagram of a second switch according to still another embodiment of the present application, and as shown in fig. 5, the second switch includes a first NMOS transistor and a second NMOS transistor, based on any of the embodiments shown in fig. 2 to 4.
The drain electrode of the first NMOS tube and the drain electrode of the second NMOS tube are respectively connected with the output end of the capacitor module, the grid electrode of the first NMOS tube and the grid electrode of the second NMOS tube are respectively connected with the controller, the source electrode of the first NMOS tube is connected with the system battery, and the source electrode of the second NMOS tube is connected with the charging interface.
The source electrode of the first NMOS tube is a first output end of the second switch, the source electrode of the second NMOS tube is a second output end of the second switch, and the first output end and the second output end of the second switch can be respectively controlled to be turned on or off by controlling a level signal input to the grid electrode of the first NMOS tube and a level signal input to the grid electrode of the second NMOS tube through the controller. In one possible implementation, if the controller inputs a high level signal to the gate of the first NMOS transistor, the first NMOS transistor is turned on with the system battery; if the controller inputs a low-level signal to the grid electrode of the first NMOS tube, the first NMOS tube and the system battery are cut off. If the controller inputs a high-level signal to the grid electrode of the second NMOS tube, the second NMOS tube is communicated with the charging interface; if the controller inputs a low-level signal to the grid electrode of the second NMOS tube, the second NMOS tube and the charging interface are cut off.
It should be noted that the schematic structural diagram of the second switch shown in fig. 5 is only one possible implementation, and the embodiment of the present application is not limited thereto. In addition, by adopting the second switch shown in fig. 5, the structure is simple, and the cost of the electrostatic protection system is low.
The following is an embodiment of the method according to the present application, which may be performed by the electrostatic protection system provided by the embodiment of the present application. For details not disclosed in the embodiments of the present application, please refer to the embodiments of the present application.
Fig. 6 is a schematic flow chart of an electrostatic protection method according to an embodiment of the present application, where the method may be implemented by a controller in an electrostatic protection system according to an embodiment of the present application, and as shown in fig. 6, the electrostatic protection method according to an embodiment of the present application may include:
step S101: and monitoring whether the charge quantity of the capacitor module reaches a preset threshold value.
The specific value of the preset threshold is not limited, and may be set according to the charge capacity of the capacitor module, for example, the preset threshold is the charge capacity of the capacitor module or less than the charge capacity of the capacitor module. The embodiment of the application does not limit the specific implementation way of the controller for monitoring the charge quantity of the capacitor module.
Step S102: and if the charge quantity of the capacitor module reaches a preset threshold value, controlling the first output end of the second switch to be conducted with the system battery so as to release static electricity through the system battery.
According to the embodiment of the application, when the electric charge quantity of the capacitor module reaches the preset threshold value, the controller controls the first output end of the second switch to be conducted with the system battery so as to release static electricity through the system battery, and the problem that the capacitor module cannot absorb static electricity when static electricity is continuously introduced into the copper leakage wiring under the condition that the electric charge quantity in the capacitor module is too high or the electric charge quantity in the capacitor module is full is prevented, so that the static electricity protection effect is poor.
The specific implementation manner of whether the first output end of the second switch is conducted with the system battery or not is not limited, and the implementation manner can be determined according to the circuit structure of the second switch. Taking the second switch shown in fig. 5 as an example, the controller controls the first output terminal of the second switch to be conducted with the system battery by inputting a high level signal to the gate of the first NMOS transistor of the second switch.
In a possible implementation manner, on the basis of the embodiment shown in fig. 6, the electrostatic protection system provided by the embodiment of the present application may further include: and monitoring the working state of a charging interface of the system. And if the working state of the charging interface is a connection state, controlling the second output end of the second switch to be conducted with the charging interface so as to release static electricity through the charging interface.
For convenience of description, fig. 7 is a schematic flow chart of an electrostatic protection method according to another embodiment of the present application, as shown in fig. 7, in the electrostatic protection method according to the embodiment of the present application, by obtaining an amount of charge of a capacitor module and a working state of a charging interface, when the working state of the charging interface is determined to be a connection state, whether the amount of charge of the capacitor module reaches a preset threshold or not is controlled to be conducted with the charging interface, and static electricity is discharged through the charging interface, so that stability of a terminal device can be improved by reducing the discharge of static electricity through a system battery. If the working state of the charging interface is not the connection state, judging whether the electric charge quantity of the capacitor module reaches a preset threshold value, if the electric charge quantity of the capacitor module reaches the preset threshold value, controlling the first output end of the second switch to be conducted with the system battery by the controller, and if the electric charge quantity does not reach the preset threshold value, continuously acquiring the electric charge quantity of the capacitor module and the working state of the charging interface by the controller, and recycling the steps to realize electrostatic protection of the electronic equipment.
An embodiment of the present application provides an electrostatic protection device, which is configured to execute an electrostatic protection method provided by the embodiment of the present application, and fig. 8 is a schematic flow chart of the electrostatic protection device provided by the embodiment of the present application, as shown in fig. 8, where the electrostatic protection device provided by the embodiment of the present application may include a monitoring module 81 and a control module 82.
The monitoring module 81 is configured to monitor whether an electric charge amount of the capacitor module reaches a preset threshold; the control module 82 is configured to control the first output terminal of the second switch to be connected to the system battery to discharge static electricity through the system battery if the charge amount of the capacitor module reaches a preset threshold.
In one possible implementation, based on the embodiment shown in fig. 8, further, another embodiment of the present application provides an electrostatic protection system,
the monitoring module 81 is further configured to monitor an operating state of a charging interface of the system.
The control module 82 is further configured to control the second output terminal of the second switch to be connected to the charging interface to discharge static electricity through the charging interface if the working state of the charging interface is a connection state.
The embodiment provided in the present application is merely illustrative, and the module division in fig. 8 is merely a logic function division, and there may be other division manners in actual implementation. For example, multiple modules may be combined or may be integrated into another system. The coupling of the individual modules to each other may be achieved by means of interfaces which are typically electrical communication interfaces, but it is not excluded that they may be mechanical interfaces or other forms of interfaces. Thus, the modules illustrated as separate components may or may not be physically separate, may be located in one place, or may be distributed in different locations on the same or different devices.
In addition, the embodiment of the application further provides a computer-readable storage medium, wherein computer-executable instructions are stored in the computer-readable storage medium, and when at least one processor of the user equipment executes the computer-executable instructions, the user equipment executes the various possibilities.
Among them, computer-readable media include computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a user device. The processor and the storage medium may reside as discrete components in a communication device.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the above embodiments; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (6)
1. An electrostatic protection system, comprising: the device comprises a Printed Circuit Board (PCB), a capacitor module, a first switch, a controller and a second switch;
the PCB comprises a copper leakage wiring, the copper leakage wiring is positioned between an outer frame and an inner frame of the PCB, the copper leakage wiring is connected with an input end of the capacitor module through the first switch, and an output end of the capacitor module is used for being connected with a system battery;
the copper leakage wiring is used for absorbing static electricity and guiding the static electricity into the first switch; the first switch is used for guiding the static electricity in the copper leakage wiring to the capacitor module in one direction; the capacitor module is used for storing the static electricity and guiding the static electricity into the system battery so as to release the static electricity;
the second switch comprises a second output end,
the second output end of the second switch is connected with a charging interface of the system, and the charging interface is connected with the controller;
the controller is used for monitoring the working state of the charging interface, and if the working state of the charging interface is a connection state, the second output end of the second switch is controlled to be conducted with the charging interface;
the first switch includes: a diode;
the anode of the diode is connected with the copper leakage wiring, and the cathode of the diode is connected with the input end of the capacitor module;
the input end of the second switch is connected with the output end of the capacitor module, and the first output end of the second switch is used for being connected with the system battery;
the controller is connected with the capacitor module and the second switch respectively, and is used for monitoring the charge quantity of the capacitor module, and if the charge quantity of the capacitor module reaches a preset threshold value, the first output end of the second switch is controlled to be conducted with the system battery.
2. The system of claim 1, wherein the second switch comprises a first NMOS and a second NMOS;
the drain electrode of the first NMOS tube and the drain electrode of the second NMOS tube are respectively connected with the output end of the capacitor module, the grid electrode of the first NMOS tube and the grid electrode of the second NMOS tube are respectively connected with the controller, the source electrode of the first NMOS tube is connected with the system battery, and the source electrode of the second NMOS tube is connected with the charging interface.
3. The system of claim 2, wherein the system further comprises a controller configured to control the controller,
if the controller inputs a high-level signal to the grid electrode of the first NMOS tube, the first NMOS tube is conducted with the system battery;
and if the controller inputs a high-level signal to the grid electrode of the second NMOS tube, the second NMOS tube is conducted with the charging interface.
4. A method of electrostatic protection, applied to an electrostatic protection system according to any one of claims 1-3, comprising:
monitoring the working state of a charging interface of the system and the charge quantity of a capacitor module;
if the working state of the charging interface is a connection state, controlling the second output end of the second switch to be conducted with the charging interface so as to release static electricity through the charging interface;
if the working state of the charging interface is not the connection state, judging whether the charge quantity of the capacitor module reaches a preset threshold value or not;
if the charge quantity of the capacitor module reaches the preset threshold value, a first output end of the second switch is controlled to be conducted with a system battery so as to release static electricity through the system battery;
and if the charge quantity of the capacitor module does not reach the preset threshold value, continuously monitoring the charge quantity of the capacitor module and the working state of the charging interface.
5. An electronic device comprising an electrostatic protection system according to any one of claims 1-3.
6. A non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of claim 4.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5179497A (en) * | 1991-04-25 | 1993-01-12 | Bakhoum Ezzat G | Ground-free static charge removal device |
| GB9320199D0 (en) * | 1993-06-24 | 1993-11-17 | Yang Hsin Ming | Static electricity protection wrist strap |
| CN101097917A (en) * | 2006-06-28 | 2008-01-02 | 大塚宽治 | Electrostatic discharge protection circuit and terminating resistor circuit |
| CN101260752A (en) * | 2008-04-18 | 2008-09-10 | 张钰博 | Key for dissipating human body electrostatic harassing attack |
| CN104427732A (en) * | 2013-08-28 | 2015-03-18 | 中兴通讯股份有限公司 | Terminal and static electricity collecting and charging method |
| CN105186483A (en) * | 2015-10-30 | 2015-12-23 | 西安易朴通讯技术有限公司 | ESD (Electronic Static Discharge) protection device, mobile terminal and protection method |
| CN206040644U (en) * | 2016-08-31 | 2017-03-22 | 京东方科技集团股份有限公司 | Electrostatic protection circuit, display panel and device |
| CN208243504U (en) * | 2017-07-14 | 2018-12-18 | 莱克电气股份有限公司 | A kind of wireless dust collector of static electrification release function |
| CN208316379U (en) * | 2018-06-26 | 2019-01-01 | 长沙学院 | Static electricity on human body's collection device |
| CN110304260A (en) * | 2019-07-16 | 2019-10-08 | 上海工程技术大学 | The distributed recovery system of electrostatic charge when a kind of unmanned plane during flying |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9065287B2 (en) * | 2011-05-06 | 2015-06-23 | Welch Allyn, Inc. | Recharging energy storage cells using capacitive storage device |
-
2020
- 2020-06-29 CN CN202010601531.1A patent/CN111542165B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5179497A (en) * | 1991-04-25 | 1993-01-12 | Bakhoum Ezzat G | Ground-free static charge removal device |
| GB9320199D0 (en) * | 1993-06-24 | 1993-11-17 | Yang Hsin Ming | Static electricity protection wrist strap |
| CN101097917A (en) * | 2006-06-28 | 2008-01-02 | 大塚宽治 | Electrostatic discharge protection circuit and terminating resistor circuit |
| CN101260752A (en) * | 2008-04-18 | 2008-09-10 | 张钰博 | Key for dissipating human body electrostatic harassing attack |
| CN104427732A (en) * | 2013-08-28 | 2015-03-18 | 中兴通讯股份有限公司 | Terminal and static electricity collecting and charging method |
| CN105186483A (en) * | 2015-10-30 | 2015-12-23 | 西安易朴通讯技术有限公司 | ESD (Electronic Static Discharge) protection device, mobile terminal and protection method |
| CN206040644U (en) * | 2016-08-31 | 2017-03-22 | 京东方科技集团股份有限公司 | Electrostatic protection circuit, display panel and device |
| CN208243504U (en) * | 2017-07-14 | 2018-12-18 | 莱克电气股份有限公司 | A kind of wireless dust collector of static electrification release function |
| CN208316379U (en) * | 2018-06-26 | 2019-01-01 | 长沙学院 | Static electricity on human body's collection device |
| CN110304260A (en) * | 2019-07-16 | 2019-10-08 | 上海工程技术大学 | The distributed recovery system of electrostatic charge when a kind of unmanned plane during flying |
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|---|---|
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