CN111969579A - Device and system for protecting connecting terminal - Google Patents
Device and system for protecting connecting terminal Download PDFInfo
- Publication number
- CN111969579A CN111969579A CN202010804892.6A CN202010804892A CN111969579A CN 111969579 A CN111969579 A CN 111969579A CN 202010804892 A CN202010804892 A CN 202010804892A CN 111969579 A CN111969579 A CN 111969579A
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- Prior art keywords
- connection terminal
- conductivity
- protecting
- terminal
- circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a device and a system for protecting a connecting terminal, comprising: connector, detection sensor, control system and display device. The detection sensor is arranged in the connector and used for detecting the conductivity of the environment where the connection terminal of the connector is located and sending the conductivity to the control system, the control system is used for judging whether the conductivity is larger than a protection threshold value or not, if the conductivity is larger than the protection threshold value, prompt information is sent to display equipment to prompt a user to select whether to switch a protection circuit or not, the control system receives selection information issued by the user, and if the selection information is to switch the protection circuit, the circuit of the connection terminal is connected with the protection circuit, wherein the protection circuit is a circuit with the polarity opposite to the electrode polarity of the circuit of the connection terminal, so that the potential of the connection terminal is smaller than the protection voltage of the connection terminal. Therefore, the electronic migration of the connecting terminal is inhibited, the metal oxidation reaction rate is reduced, the connecting terminal is prevented from being corroded, and the service life of the connecting terminal is prolonged.
Description
Technical Field
The invention relates to the field of electronic safety, in particular to a device and a system for protecting a connecting terminal.
Background
Connectors are widely used in electronic devices, such as USB (Universal Serial Bus), headphone jack, BTB (Board-to-Board Connectors), ZIF (Zero Insertion Force Connectors), and the like. Fig. 1 exemplarily shows a structure diagram of a connection terminal, fig. 1 a is a diagram of the connection terminal as a whole, and fig. 1 b is a diagram of the connection terminal after detachment. As shown in fig. 1, the connector includes a connection terminal 101, a plastic body 102, and a fixing base 103. The material of the connecting terminal comprises copper alloy, such as phosphor copper and brass. In an environment where the connection terminal is exposed to an electrolyte (e.g., an aqueous solution or a wet environment), an electrochemical reaction may occur in the connection terminal, thereby causing corrosion, damage, and an adverse effect on normal use of the connection terminal.
The prior art protection methods for the connection terminals include adding a metal plating to the connection terminals to separate the connection terminals from the external environment. For example, a nickel plating layer is electroplated on the connection terminal, and then a noble metal plating layer, such as gold or silver, is electroplated. Thereby preventing the connection terminal from being corroded.
However, the problems in the prior art are that: when the thickness of the electroplating layer is larger than the threshold value, the cost can be improved, and when the thickness of the electroplating layer is not larger than the threshold value, the electroplating layer can have electroplating holes, so that the connecting terminal can be exposed in the electrolyte environment in use, and the connecting terminal is corroded. Therefore, a protection method for a connection terminal is needed to prevent the connection terminal from being corroded, reduce the cost of protecting the connection terminal, and prolong the service life of the connection terminal.
Disclosure of Invention
The embodiment of the invention provides a device and a system for protecting a connecting terminal, which are used for preventing the connecting terminal from being corroded, reducing the cost of protecting the connecting terminal and prolonging the service life of the connecting terminal.
In a first aspect, an embodiment of the present invention provides an apparatus for protecting a connection terminal, including: the device comprises a connector, a detection sensor, a control system and a display device;
the detection sensor is arranged in the connector and used for detecting the conductivity of the environment where the connection terminal of the connector is located and sending the conductivity to the control system;
the control system is used for judging whether the conductivity is greater than a protection threshold value or not, and if the conductivity is greater than the protection threshold value, sending prompt information to the display equipment to prompt a user to select whether to switch a protection circuit or not;
the control system receives selection information issued by the user, and if the selection information is a switching protection circuit, the circuit of the connecting terminal is connected with the protection circuit; the protection circuit is a circuit having an electrode polarity opposite to that of the circuit of the connection terminal so that the potential of the connection terminal is smaller than the protection voltage of the connection terminal.
According to the technical scheme, the humidity of the environment where the connecting terminal of the connecting end is located is detected through the detection sensor, the conductivity of the environment where the connecting terminal is located is further detected, whether the conductivity is larger than a protection threshold value or not is judged through the control system, if the conductivity is larger than the protection threshold value, it is determined that the environment where the connecting terminal is located belongs to a corrosion-prone environment, namely, the connecting terminal is located in an electrolyte environment, prompt information is further sent to the display device, a user can know the current environment, selection information issued by the user is received, when the selection information is switching of the protection circuit, the connecting terminal is connected with the protection circuit, the potential of the connecting terminal is reduced, and the protection voltage is reduced to. Therefore, the electronic migration of the connecting terminal is inhibited, the metal oxidation reaction rate is reduced, the connecting terminal is prevented from being corroded, and the service life of the connecting terminal is prolonged.
Optionally, when the control system determines that the conductivity is not greater than the protection threshold, the control system maintains the current state of the connection terminal.
In the technical scheme, when the conductivity is not greater than the protection threshold value, the control system determines that the environment where the current connecting terminal is located belongs to a non-electrolyte environment, and the connecting terminal is not required to be connected with a protection circuit.
Optionally, if the control system receives the selection information issued by the user as that the protection circuit is not switched, the current state of the connection terminal is maintained.
Optionally, the current state includes a connection state and an unconnected state of the connection terminal; the connection state is the state that the connection terminal is connected with a working circuit; the working circuit provides rated voltage for the connecting terminal.
Optionally, the protection voltage of the connection terminal is a reference voltage of a material of the connection terminal in a neutral pH (hydrogen-ion concentration) environment.
Optionally, the conductivity of the environment in which the connection terminal is located is obtained according to the humidity in the environment in which the connection terminal is located.
According to the technical scheme, the conductivity of the environment where the connecting terminal is located is obtained according to the humidity of the environment where the connecting terminal is located, and then whether the environment where the connecting terminal is located belongs to an electrolyte environment or not is judged through the conductivity, so that the connecting terminal is prevented from being corroded.
Optionally, the detection sensor is located in the same environment as the connection terminal, and is configured to periodically detect the conductivity in the environment where the connection terminal is located.
According to the technical scheme, the detection sensor and the connecting terminal are located in the same environment, so that the conductivity of the current environment where the connecting terminal is located is periodically detected, and the detection accuracy is improved.
Optionally, the connection terminal is provided with a plating layer.
Optionally, the plating layer comprises 50-100 inclusive nickel plating and 3-50 and 0 gold plating.
Among the above-mentioned technical scheme, through setting up the connecting terminal plating layer to prevent that the surface of connecting terminal from being oxidized, and reduce connecting terminal's contact resistance, strengthen signal transmission.
In a second aspect, an embodiment of the present invention further provides a system for protecting a connection terminal, including the apparatus for protecting a connection terminal in the foregoing technical solution.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a connection terminal according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an apparatus for protecting a connection terminal according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a system control for protecting a connection terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 schematically illustrates a structure of an apparatus for protecting a connection terminal according to an embodiment of the present invention, where the structure includes a connector 210 disposed on a terminal device, a detection sensor 220, and a housing 230 of the terminal device.
The connector 210 further includes a connection terminal 2011. For example, the earphone hole is a connector, the terminal in the earphone hole, which is in contact with the earphone plug, is a connecting terminal, the type-c interface of the terminal for charging is a connector, and the terminal in the type-c interface, which is in contact with the charging wire of the terminal, is a connecting terminal. The terminal equipment also comprises display equipment and a control system.
The detection sensor 220 is disposed in the connector 210, and is configured to detect conductivity of an environment in which the connection terminal 2011 of the connector 210 is located, and send the conductivity to a control system in the terminal device.
The control system is configured to determine whether the conductivity of the environment where the connection terminal 2011 is located is greater than a protection threshold, and if the conductivity is greater than the protection threshold, send a prompt message to the display device to prompt a user to select whether to switch the protection circuit. And after the prompt, receiving selection information issued by a user, and if the selection information is a switching protection circuit, connecting the circuit of the connection terminal 2011 with the protection circuit, wherein the protection circuit is a circuit with a polarity opposite to that of an electrode of the circuit of the connection terminal 2011, so that the potential of the connection terminal 2011 is smaller than the protection voltage of the connection terminal 2011.
It should be noted that the protection threshold may be a value set empirically, and may be, for example, 6.7 × 106Siemens per meter, etc.
In the embodiment of the present invention, the detection sensor 220 detects the conductivity of the current environment of the connection terminal 2011, and sends the conductivity to the control system, and the control system determines whether the current conductivity is greater than the protection threshold, and if so, determines that the environment of the current connection terminal 2011 has a higher humidity and belongs to the electrolyte environment. Because water molecules affect the conductivity of the environment, for example, when the conductivity of the environment is reduced to a protection threshold, the humidity of the environment is determined to be higher, and it is determined that the environment belongs to the electrolyte environment. After determining that the connecting terminal is in the electrolyte environment, the control system sends prompt information to the display device to prompt a user, and then the user sends selection information to determine whether the protection circuit needs to be connected or not so as to determine whether the connecting terminal is protected according to the protection circuit or not according to the selection information. For example, the protection circuit is a-48V circuit so that the potential of the connection terminal is lower than the protection voltage of the connection terminal 2011, the metal oxidation reaction rate is reduced, and the connection terminal is prevented from being corroded. In order to better explain the above technical solutions, the following will be illustrated in specific examples.
Example 1
Under the condition of artificial sweat test, two groups of terminal devices are wrapped by cotton yarn machine soaked with artificial sweat, and then placed in 45 deg.C/90-95% humidity environment for a preset time. The two groups of connecting terminals are made of the same material and have the same electroplated layer, wherein the electroplated layer is 0.15mm brass, and the electroplated layer is a 50 mu 0 nickel plated layer and a 15 mu 5 gold plated layer, and the test is carried out after the connecting terminals are plugged and unplugged for preset times.
It should be noted that the two groups of connection terminals include a group a and a group B, wherein the terminal equipment of the group a connection terminal is connected with the protection circuit, so that the potential of the connection terminal is less than the protection voltage corresponding to the material of the connection terminal. The terminal equipment of the B group of connecting terminals has no protection circuit. After a predetermined time, the group a connection terminals were checked for the absence of significant verdigris (i.e., no significant corrosion of the connection terminal surface) after 72 hours. The group B connecting terminals are checked to have no obvious verdigris after 24 hours, and checked to have obvious verdigris after 48 hours (namely, obvious corrosion phenomenon on the surfaces of the connecting terminals).
Further, when the control system determines that the conductivity is not greater than the protection threshold, the current state of the connection terminal 2011 is maintained. Or when the control system receives selection information sent by the user as that the protection circuit is not switched, the current state of the connection terminal 2011 is maintained.
Specifically, the current state includes a connected state and an unconnected state of the connection terminal 2011. The connection state is a state where the connection terminal 2011 is connected to the working circuit, and the working circuit provides a rated voltage to the connection terminal 2011. For example, the connection terminal 2011 is currently in a charging state (i.e., a state in which the operating circuit is connected), the voltage is 5V, and the current is 2A.
The protection voltage of the connection terminal 2011 is a reference voltage of a material of the connection terminal in a neutral pH environment. For example, the reference voltage of zinc is-1.1V in a neutral pH environment, and the reference voltage of lead is-0.5V in a neutral pH environment.
The detection sensor 220 is in the same environment as the connection terminal 2011, and is used for periodically detecting the conductivity in the environment where the connection terminal 2011 is located. By placing the detection sensor 220 and the connection terminal 2011 in the same environment, the accuracy of the detection sensor 220 for detecting the environment in which the connection terminal 2011 is located is improved. For example, in fig. 2, a sealing foam 250 is further disposed on the housing 230 of the terminal device. Used for isolating the external environment from communicating with the interior of the terminal equipment. The detection sensor 220 and the connector 210 are disposed on the terminal device, and are outside the sealing foam 250, which is the same as the external environment.
Illustratively, the connecting terminal is provided with a plating layer, and the specific plating layer comprises: 50-100 electroplated nickel plating and 3-50 and 0 gold plating.
Based on the above description, fig. 3 schematically illustrates a flow chart of system control for protecting a connection terminal according to an embodiment of the present invention. The process may be performed by a terminal device.
As shown in fig. 3, the process specifically includes:
in step 310, the control system obtains the conductivity of the environment in which the connection terminal is located.
The control system periodically acquires the conductivity of the environment where the connection terminal is located, which is periodically detected and transmitted by the detection sensor.
In step 320, the control system determines whether the conductivity is greater than a protection threshold, if so, step 330 is performed, otherwise, step 340 is performed.
The prompt message may be: and determining whether the environment of the front connecting terminal is an electrolyte environment or not and connecting a protection circuit.
The current state of the connection terminal may include: the connection terminal is in an idle state (i.e., a state where no circuit is connected), and the connection terminal is in a connected state (i.e., a state where a certain circuit is connected, such as a circuit when the connection terminal of the earphone jack is connected to the earphone, a circuit when the terminal device is charged, and the like).
In step 350, the control system receives the selection information.
The display device displays the prompt information and receives selection information provided by a user, for example, the user selects to switch the current connection terminal charging circuit to the protection circuit.
And step 360, if the selection information is the switching protection circuit, connecting the connecting terminal with the protection circuit.
In step 370, if the selection information is that the protection circuit is not switched, the current state of the connection terminal is maintained.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A device for protecting a connection terminal, comprising: the device comprises a connector, a detection sensor, a control system and a display device;
the detection sensor is arranged in the connector and used for detecting the conductivity of the environment where the connection terminal of the connector is located and sending the conductivity to the control system;
the control system is used for judging whether the conductivity is greater than a protection threshold value or not, and if the conductivity is greater than the protection threshold value, sending prompt information to the display equipment to prompt a user to select whether to switch a protection circuit or not;
the control system receives selection information issued by the user, and if the selection information is a switching protection circuit, the circuit of the connecting terminal is connected with the protection circuit; the protection circuit is a circuit having an electrode polarity opposite to that of the circuit of the connection terminal so that the potential of the connection terminal is smaller than the protection voltage of the connection terminal.
2. A device for protecting a connection terminal as claimed in claim 1, wherein the control system maintains the current state of the connection terminal when it determines that the electrical conductivity is not greater than the protection threshold.
3. A device for protecting a connection terminal according to claim 2, wherein if the control system receives the selection information issued by the user as not to switch a protection circuit, the current state of the connection terminal is maintained.
4. A connection terminal protecting apparatus according to claim 3, wherein said current state includes a connected state and an unconnected state of said connection terminal; the connection state is the state that the connection terminal is connected with a working circuit; the working circuit provides rated voltage for the connecting terminal.
5. A device for protecting a connection terminal according to claim 1, wherein the protection voltage of the connection terminal is a reference voltage of a material of the connection terminal in a neutral pH environment.
6. A device for protecting a connection terminal according to claim 1, wherein the conductivity of the environment in which the connection terminal is located is obtained based on the humidity in the environment in which the connection terminal is located.
7. A device for protecting a connection terminal as claimed in claim 1, wherein said detection sensor is in the same environment as said connection terminal for periodically detecting the conductivity in the environment in which said connection terminal is located.
8. A device for protecting a connecting terminal as claimed in any one of claims 1 to 7, wherein said connecting terminal is provided with a plating layer.
9. A connecting terminal protecting device according to claim 8, wherein said plating layer comprises 50 to 100 of nickel plating and 3 to 50 and 0 of gold plating.
10. A system for protecting a connection terminal, characterized by comprising a device for protecting a connection terminal according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010804892.6A CN111969579B (en) | 2020-08-12 | 2020-08-12 | Device and system for protecting connecting terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010804892.6A CN111969579B (en) | 2020-08-12 | 2020-08-12 | Device and system for protecting connecting terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111969579A true CN111969579A (en) | 2020-11-20 |
| CN111969579B CN111969579B (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010804892.6A Active CN111969579B (en) | 2020-08-12 | 2020-08-12 | Device and system for protecting connecting terminal |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1933421A2 (en) * | 2006-12-15 | 2008-06-18 | GE Fanuc Embedded Systems , Inc. | Electrical connector element |
| US20190103693A1 (en) * | 2017-09-29 | 2019-04-04 | Apple Inc. | Electrical contacts having sacrificial layer for corrosion protection |
| CN110554850A (en) * | 2018-06-01 | 2019-12-10 | 三星电子株式会社 | Electronic device and method for preventing corrosion of audio jack |
| CN111106485A (en) * | 2019-11-28 | 2020-05-05 | 张喜云 | Possesses charging data line that prevents terminal corruption type C connector that charges soon |
-
2020
- 2020-08-12 CN CN202010804892.6A patent/CN111969579B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1933421A2 (en) * | 2006-12-15 | 2008-06-18 | GE Fanuc Embedded Systems , Inc. | Electrical connector element |
| US20190103693A1 (en) * | 2017-09-29 | 2019-04-04 | Apple Inc. | Electrical contacts having sacrificial layer for corrosion protection |
| CN110554850A (en) * | 2018-06-01 | 2019-12-10 | 三星电子株式会社 | Electronic device and method for preventing corrosion of audio jack |
| CN111106485A (en) * | 2019-11-28 | 2020-05-05 | 张喜云 | Possesses charging data line that prevents terminal corruption type C connector that charges soon |
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| Publication number | Publication date |
|---|---|
| CN111969579B (en) | 2022-04-15 |
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