CN209821332U - Magnetic connector control circuit in electronic equipment and electronic equipment - Google Patents
Magnetic connector control circuit in electronic equipment and electronic equipment Download PDFInfo
- Publication number
- CN209821332U CN209821332U CN201920346093.1U CN201920346093U CN209821332U CN 209821332 U CN209821332 U CN 209821332U CN 201920346093 U CN201920346093 U CN 201920346093U CN 209821332 U CN209821332 U CN 209821332U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- contact
- type connector
- connector
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims abstract description 83
- 230000002159 abnormal effect Effects 0.000 claims description 23
- 230000005389 magnetism Effects 0.000 abstract description 94
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The application provides a formula connector control circuit is inhaled to magnetism among electronic equipment includes: the device comprises a current source, a voltage detection unit and a control unit; the positive output end of the current source is connected with a first contact in the first magnetic-type connector, and the negative output end of the current source is connected with the ground, wherein the first contact is a suspended contact in the first magnetic-type connector; one input end of the voltage detection unit is connected with the first contact, and the other input end of the voltage detection unit is connected with a second contact in the first magnetic-type connector, wherein the second contact is a grounding contact in the first magnetic-type connector; the output end of the voltage detection unit is connected with the first input end of the control unit; and the control unit is used for determining the connection state of the first magnetic type connector and the second magnetic type connector according to the voltage value output by the voltage detection unit. From this, formula connector control circuit is inhaled to magnetism among the electronic equipment that this application provided can in time discover the contact failure phenomenon of formula connector is inhaled to magnetism, has improved the reliability of inhaling formula connector, has reduced the potential safety hazard.
Description
Technical Field
The application relates to the technical field of electronics, especially, relate to a formula connector control circuit and electronic equipment are inhaled to magnetism among electronic equipment.
Background
With the continuous development of science and technology, electronic devices such as mobile phones and computers are continuously developed, so that the electronic devices are adapted to various requirements of people, and great convenience is brought to the life of people. Meanwhile, the demand for portability of electronic devices is also increasing. At present, data communication or power connection of an electronic device is generally realized by providing an interface connector in the electronic device and establishing connection with the interface connector of the electronic device by using a plug in a signal line or a power line. However, the interface connector in the electronic device needs to occupy a certain volume space, which is not favorable for the lightness and thinness of the electronic device.
In the related art, the magnetic connector may be used instead of the interface connector, thereby reducing the space occupation of the connector in the electronic device. However, in the electronic device, the interface connector is replaced by the contact point, and the contact failure of the contact point is likely to occur, so that the magnetic-type connector is poor in reliability and has a great potential safety hazard.
Disclosure of Invention
The application provides a formula connector control circuit is inhaled to magnetism among electronic equipment for in solving the correlation technique, the contact failure condition appears easily in the contact point of formula connector is inhaled to magnetism, thereby makes the reliability of magnetism type connector poor, has the problem of very big potential safety hazard.
The formula connector control circuit is inhaled to magnetism among the electronic equipment that this application one aspect embodiment provided includes: the device comprises a current source, a voltage detection unit and a control unit; the positive output end of the current source is connected with a first contact in the first magnetic-type connector, and the negative output end of the current source is connected with the ground, wherein the first contact is a suspended contact in the first magnetic-type connector; one input end of the voltage detection unit is connected with the first contact, and the other input end of the voltage detection unit is connected with a second contact in the first magnetic-type connector, wherein the second contact is a grounding contact in the first magnetic-type connector; the output end of the voltage detection unit is connected with the first input end of the control unit; the control unit is used for determining the connection state of the first magnetic type connector and the second magnetic type connector according to the voltage value output by the voltage detection unit, wherein the third contact of the second magnetic type connector is the contact corresponding to the first contact, the fourth contact of the second magnetic type connector is the contact corresponding to the second contact, and the third contact is connected with the fourth contact.
The electronic equipment that this application embodiment provided magnetism is inhaled formula connector control circuit among, through the current source concatenates between first contact and the ground wire in first magnetism is inhaled formula connector, concatenate voltage detection unit between the first contact and the second contact of first magnetism is inhaled formula connector, and then according to the voltage value of voltage detection unit output through the control unit, confirm that the connection status of formula connector is inhaled with the second magnetism to first magnetism and inhale the formula connector, wherein, the third contact in the formula connector is inhaled with the first contact of first magnetism and is connected to the second magnetism, fourth contact in the formula connector is inhaled with the second contact of first magnetism and is inhaled the formula connector to the second magnetism. From this, for the first contact of first magnetism type connector applys voltage through the electric current source, and utilize the difference of the voltage value that the control unit was exported according to voltage detection unit and the voltage value that the electric current source applyed on the first contact, confirm that first magnetism type connector and second magnetism type connector's connected state is inhaled, thereby can in time discover that first magnetism type connector and second magnetism type connector inhale the contact failure phenomenon between the type connector, the reliability of magnetism type connector has been improved, the potential safety hazard has been reduced.
Another aspect of the present application provides an electronic device, which includes the magnetic-type connector control circuit in the electronic device as described above.
The electronic equipment that this application embodiment provided, can utilize as before electronic equipment in magnetism inhale formula connector control circuit, through concatenating the current source between first contact in the formula connector is inhaled to first magnetism and the ground wire, it connects voltage detection unit to inhale to concatenate between the first contact of formula connector and the second contact at first magnetism, and then according to the voltage value of voltage detection unit output through the control unit, confirm the connection status that formula connector is inhaled to first magnetism and second magnetism, wherein, the third contact in the formula connector is inhaled to second magnetism is connected with the first contact of first magnetism and inhale the formula connector, fourth contact in the formula connector is inhaled to second magnetism is connected with the second contact of first magnetism and inhale the formula connector. From this, for the first contact of first magnetism type connector applys voltage through the electric current source, and utilize the difference of the voltage value that the control unit was exported according to voltage detection unit and the voltage value that the electric current source applyed on the first contact, confirm that first magnetism type connector and second magnetism type connector's connected state is inhaled, thereby can in time discover that first magnetism type connector and second magnetism type connector inhale the contact failure phenomenon between the type connector, the reliability of magnetism type connector has been improved, the potential safety hazard has been reduced.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a magnetic-type connector control circuit in an electronic device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another magnetic-type connector control circuit in an electronic device according to an embodiment of the present disclosure.
Description of reference numerals:
the electronic device comprises an electronic device 10, a magnetic connector control circuit 101 in the electronic device, a current source 1011, a voltage detection unit 1012, a control unit 1013, a current detection unit 1014, a switch assembly 1015, a proximity sensor 1016, a first magnetic connector 102, a first contact 1021, a second contact 1022, a second magnetic connector 20, a third contact 201 and a fourth contact 202.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the like or similar elements throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
This application embodiment is to among the correlation technique, the contact point of magnetism type connector appears contact failure condition easily to make the reliability of magnetism type connector poor, there is the problem of very big potential safety hazard, propose a magnetism type connector control circuit among the electronic equipment.
The electronic equipment that this application embodiment provided magnetism is inhaled formula connector control circuit among, through the current source concatenates between first contact and the ground wire in first magnetism is inhaled formula connector, concatenate voltage detection unit between the first contact and the second contact of first magnetism is inhaled formula connector, and then according to the voltage value of voltage detection unit output through the control unit, confirm that the connection status of formula connector is inhaled with the second magnetism to first magnetism and inhale the formula connector, wherein, the third contact in the formula connector is inhaled with the first contact of first magnetism and is connected to the second magnetism, fourth contact in the formula connector is inhaled with the second contact of first magnetism and is inhaled the formula connector to the second magnetism. From this, for the first contact of first magnetism type connector applys voltage through the electric current source, and utilize the difference of the voltage value that the control unit was exported according to voltage detection unit and the voltage value that the electric current source applyed on the first contact, confirm that first magnetism type connector and second magnetism type connector's connected state is inhaled, thereby can in time discover that first magnetism type connector and second magnetism type connector inhale the contact failure phenomenon between the type connector, the reliability of magnetism type connector has been improved, the potential safety hazard has been reduced.
The magnetic-attraction-type connector control circuit in the electronic device provided by the present application is described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a magnetic-type connector control circuit in an electronic device according to an embodiment of the present disclosure.
As shown in fig. 1, the magnetic-attraction-type connector control circuit 101 in the electronic device includes: a current source 1011, a voltage detection unit 1012, and a control unit 1013;
the positive output end of the current source 1011 is connected with a first contact 1021 in the first magnetic-attraction connector 102, and the negative output end of the current source 1011 is connected with the ground, wherein the first contact 1021 is a floating contact in the first magnetic-attraction connector 102;
one input end of the voltage detection unit 1012 is connected to the first contact 1021, and the other output end of the voltage detection unit 1012 is connected to a second contact 1022 in the first magnetic-type connector 102, where the second contact 1022 is a ground contact in the first magnetic-type connector 102;
an output end of the voltage detection unit 1012 is connected to a first input end of the control unit 1013;
the control unit 1013 is configured to determine a connection state between the first magnetic connector 102 and the second magnetic connector 20 according to the voltage value output by the voltage detection unit 1012, where a third contact 201 of the second magnetic connector 20 is a contact corresponding to the first contact 1021, a fourth contact 202 of the second magnetic connector 20 is a contact corresponding to the second contact 1022, and the third contact 201 is connected to the fourth contact 202.
The electronic device 10 includes a magnetic connector control circuit 101 and a first magnetic connector 102.
The first magnetically-attracted connector 102 may establish a connection with the second magnetically-attracted connector 20 to charge the electronic device 10, or enable the electronic device 10 to establish a data connection with another external device, so as to implement data transmission between the electronic device 10 and the other external device.
It should be noted that the first magnetic connector 102 and the second magnetic connector 20 generally include a plurality of magnetic attraction points with the same number, where the magnetic attraction points in the first magnetic connector 102 and the second magnetic connector 20 may be exposed metal conductor contacts, the magnetic attraction points in the first magnetic connector 102 and the second magnetic connector 20 may be correspondingly connected in a magnetic manner, so as to achieve the conduction between the first magnetic connector 102 and the second magnetic connector 20, so as to charge the electronic device 10, or achieve the data transmission between the electronic device 10 and other external devices.
In the embodiment of the present application, when the first magnetic-type connector 102 is not connected to the second magnetic-type connector 20, the contacts of the first magnetic-type connector 102 are in an open circuit state, and the voltage between the contacts is 0, that is, the voltage between the first contact 1021 and the second contact 1022 is also 0; when the first magnetic connector 102 is connected to the second magnetic connector 20 and the contacts are in good contact with each other, the contacts of the first magnetic connector 102 are connected through the contacts of the second magnetic connector 20 (for example, the first contact 1021 and the second contact 1022 are connected through the third contact 201 and the fourth contact 202), that is, the impedance between the contacts is extremely small, and the voltage value between the contacts of the first magnetic connector 102 is extremely small due to the existence of the leakage current in the circuit.
The contact effect between the first magnetic-type connector 102 and the second magnetic-type connector 20 is influenced by magnetic force, contact displacement, foreign matter, and the like. Specifically, when the magnetic force between the contact in the first magnetic-type connector 102 and the contact in the second magnetic-type connector 20 is weak or the magnetic force is applied to the contact, the contact between the first magnetic-type connector 102 and the contact in the second magnetic-type connector 20 may become loose, which affects the contact effect, so that the impedance of the conduction path is increased and poor contact occurs; when the contacts in the first magnetically-attractable connector 102 are not aligned with (i.e., offset from) the corresponding contacts in the second magnetically-attractable connector 20, the effective cross-sectional area between the contacts in the first magnetically-attractable connector 102 and the corresponding contacts in the second magnetically-attractable connector 20 is reduced, thereby increasing the impedance of the conduction path; when foreign matter exists between the contact in the first magnetic-type connector 102 and the corresponding contact in the second magnetic-type connector 20, the contact effect of the contacts is affected by the existence of the foreign matter, so that the impedance of the conduction path is increased. Therefore, when contact failure occurs between the first magnetic-type connector 102 and the second magnetic-type connector 20, the impedance between the contacts of the first magnetic-type connector 102 with contact failure may be significantly increased, so that, in the embodiment of the present application, it is possible to determine whether the contact between the first magnetic-type connector 102 and the second magnetic-type connector 20 is good or not by detecting the impedance between the contacts of the first magnetic-type connector 102 with contact failure.
As a possible implementation, one or more pairs of contacts in the first magnetically-attractable connector 102 may be selected as the sensing contacts, and the impedance between the selected one or more pairs of sensing contacts may be sensed. When the impedance between one or more pairs of detection contacts is greater than a certain value, it can be determined that there is a poor contact between the first magnetically-attracted connector 102 and the second magnetically-attracted connector 20.
Optionally, when a contact in the first magnetic connector 102 and a corresponding contact in the second magnetic connector 20 are in poor contact, the contact effect of other contacts in the first magnetic connector 102 and the second magnetic connector may also be affected, and therefore, in a possible implementation form of this embodiment, a pair of contacts in the first magnetic connector 102 may be selected as detection contacts to reduce the complexity of the magnetic connector control circuit 101.
It should be noted that the first magnetically-attracted connector 102 generally includes an idle floating contact (the first contact 1021) and a ground contact (the second contact 1022), so that the floating contact and the ground contact in the first magnetically-attracted connector 102 can be selected as detection contacts to reduce the influence of the magnetically-attracted connector control circuit 101 on the first magnetically-attracted connector 102.
As a possible implementation manner, since the voltage between the contacts of the first magnetic-attraction connector 102 increases with the increase of the impedance, that is, the voltage value between the first contact 1021 and the second contact 1022 can reflect the impedance between the first contact 1021 and the second contact 1022, the contact condition between the first magnetic-attraction connector 102 and the second magnetic-attraction connector 20 can be determined by detecting the voltage value between the first contact 1021 and the second contact 1022.
As a possible implementation manner, since the voltage between the contacts in the first magnetic connector 102 is usually small, if the voltage value between the contacts is directly detected, the measurement error will be large, so that a current source 1011 can be connected in series between the first contact 1021 and the ground, so that the first contact 1021 has a certain initial voltage, the measurement error is reduced, and the contact effect between the first magnetic connector 102 and the second magnetic connector 20 is accurately determined. The current source 1011 connected in series between the first contact 1021 and the ground is usually a small current source, so as to ensure that the voltage applied by the current source 1011 on the first contact 1021 does not affect the normal use of the first magnetic-attraction connector.
It should be noted that, in actual use, the size of the current source 1011 may be set according to actual needs, which is not limited in the embodiment of the present application.
Optionally, since the voltage of the second contact 1022 (ground contact) is 0, when the first connector 102 and the second connector 20 are in good contact, that is, the first contact 1021 and the second contact 1022 are conductive, the voltage value between the first contact 1021 and the second contact 1022 is the initial voltage value applied to the first contact 1021 by the current source 1011; when the first connector 102 and the second connector 20 are in poor contact, the voltage between the first contact 1021 and the second contact 1022 is increased, i.e. is greater than the initial voltage applied to the first contact 1021 by the current source 1011. Therefore, the contact condition between the first connector 102 and the second connector 20 can be determined by detecting whether the voltage value between the first contact 1021 and the second contact 1022 is the same as the initial voltage value applied to the first contact 1021 by the current source 1011.
In the embodiment of the present application, the first contact 1021 is connected to a first input terminal of the voltage detection unit 1012, the second contact 1022 is connected to a second input terminal of the voltage detection unit 1012, and an output terminal of the voltage detection unit 1021 is connected to a first input terminal of the control unit 1013, so that the voltage detection unit 1012 can determine a voltage value between the first contact 1021 and the second contact 1022 according to voltage values input by the two input terminals, and transmit the determined voltage value to the control unit 1013.
As a possible implementation manner, an initial voltage value may be preset according to the magnitude of the current source 1011 connected in series between the first contact 1021 and the ground, and the value is stored in the control unit 1013, so that the control unit 1013 may determine whether the obtained voltage value is the same as the preset initial voltage value according to the obtained voltage value and the preset initial voltage value, and perform a corresponding operation according to the determination result.
Specifically, if the control unit 1013 determines that the acquired voltage value is the same as the preset initial voltage value, it may be determined that the first magnetic-type connector 102 and the second magnetic-type connector 20 are in good contact; if control unit 1013 determines that the acquired voltage value is different from the preset initial voltage value, it may be determined that first magnetic-type connector 102 and second magnetic-type connector 20 are in poor contact.
Further, the output end of the control unit 1013 may be further connected to the control end of the first magnetic-type connector 102, so that the control unit 1013 controls the first magnetic-type connector 102 to disconnect from the internal circuit of the electronic device 10 when it is determined that the first magnetic-type connector 102 is in poor contact with the second magnetic-type connector 20. That is, in one possible implementation form of the embodiment of the present application, the control unit 1013 is further configured to:
when the connection state of the first magnetic connector 102 and the second magnetic connector 20 is determined to be abnormal, the first magnetic connector 102 is disconnected from other circuits.
The other circuits may include a charging circuit and a data transmission circuit.
The electronic device 10 can be charged or perform data transmission with other external devices by connecting the first magnetic-type connector 102 and the second magnetic-type connector 20. If the connection state between the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal (poor contact, etc.), the electronic device 10 may generate heat, and the first magnetic-type connector 102 may be burned out, which may cause a great potential safety hazard. Therefore, when determining that the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal, the control unit 1013 may control the connection of the first magnetic-type connector 102 and other circuits in the electronic device 10 to ensure safe operation of the electronic device 10.
Further, the output end of the control unit 1013 may be further connected to a control component of the electronic device 10, so that the control unit 1013 controls the electronic device 10 to send out a reminding message when it is determined that the first magnetic-type connector 102 and the second magnetic-type connector 20 are in poor contact, so that the user can perform processing according to the reminding message. That is, in one possible implementation form of the embodiment of the present application, the control unit 1013 is further configured to:
when determining that the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal, outputting a warning message that the connection of the first magnetic-type connector 102 is abnormal through the electronic device 10.
As a possible implementation manner, if the control unit 1013 determines that the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal, the electronic device 10 may be further controlled to output a warning message indicating that the connection of the first magnetic-type connector 102 is abnormal, so that the user may disconnect the first magnetic-type connector 102 from the second magnetic-type connector 20 according to the warning message, or remove the reason that the connection of the first magnetic-type connector 102 is abnormal, and reconnect the first magnetic-type connector 102 and the second magnetic-type connector 20.
The electronic equipment that this application embodiment provided magnetism is inhaled formula connector control circuit among, through the current source concatenates between first contact and the ground wire in first magnetism is inhaled formula connector, concatenate voltage detection unit between the first contact and the second contact of first magnetism is inhaled formula connector, and then according to the voltage value of voltage detection unit output through the control unit, confirm that the connection status of formula connector is inhaled with the second magnetism to first magnetism and inhale the formula connector, wherein, the third contact in the formula connector is inhaled with the first contact of first magnetism and is connected to the second magnetism, fourth contact in the formula connector is inhaled with the second contact of first magnetism and is inhaled the formula connector to the second magnetism. From this, for the first contact of first magnetism type connector applys voltage through the electric current source, and utilize the difference of the voltage value that the control unit was exported according to voltage detection unit and the voltage value that the electric current source applyed on the first contact, confirm that first magnetism type connector and second magnetism type connector's connected state is inhaled, thereby can in time discover that first magnetism type connector and second magnetism type connector inhale the contact failure phenomenon between the type connector, the reliability of magnetism type connector has been improved, the potential safety hazard has been reduced.
In this application a possible implementation form, can also inhale the current detecting element that concatenates between formula sensor's ground contact and voltage detecting element at first magnetism to judge that first magnetism is inhaled formula sensor and is inhaled the formula sensor with the second and be connected when, electronic equipment is charging, is still carrying out data transmission, and according to the current event of carrying out of electronic equipment, inhale formula sensor and be connected when unusual with the second magnetism in the first magnetism of affirmation, make different operations.
The following describes a magnetic-type connector control circuit in an electronic device according to an embodiment of the present application with reference to fig. 2.
Fig. 2 is a schematic structural diagram of another magnetic-type connector control circuit in an electronic device according to an embodiment of the present disclosure.
As shown in fig. 2, the magnetic-attraction-type connector control circuit 101 in the electronic device includes: a current source 1011, a voltage detection unit 1012, a control unit 1013, a current detection unit 1014, a switching element 1015, and a proximity sensor 1016;
the positive output end of the current source 1011 is connected with the switch component 1015, and the negative output end of the current source 1011 is connected with the ground;
the switch element 1015 is connected in series with the positive output terminal of the current source 1011 and the first contact 1021, and a control terminal of the switch element 1015 is connected with the output terminal of the control element 1013, wherein the first contact 1021 is a floating contact in the first magnetic connector 102;
one input end of the voltage detection unit 1012 is connected to the first contact 1021, and the other input end of the voltage detection unit 1012 is connected to a second contact 1022 in the first magnetic-type connector 102, where the second contact 1022 is a ground contact in the first magnetic-type connector 102;
an output end of the voltage detection unit 1012 is connected to a first input end of the control unit 1013;
the current detection unit 1014 is connected in series with one ground contact 1022 in the first magnetic-type connector 102, and an output end of the current detection unit 1014 is connected with a second input end of the control unit 1013;
the output of the proximity sensor 1016 is connected to a third input of the control unit 1013;
the control unit 1013 is configured to determine a connection state between the first magnetic connector 102 and the second magnetic connector 20 according to the voltage value output by the voltage detection unit 1012, where a third contact 201 of the second magnetic connector 20 is a contact corresponding to the first contact 1021, a fourth contact 202 of the second magnetic connector 20 is a contact corresponding to the second contact 1022, and the third contact 201 is connected to the fourth contact 202.
The control unit 1013 is further configured to control the on state of the switch assembly 1015.
By connecting the first magnetic-type connector 102 and the second magnetic-type connector 20, the electronic device 10 can be charged and can also transmit data to other external devices. However, when the electronic device 10 is charged, the current passing through each contact of the first magnetic-attraction-type connector 102 is generally large, so that if the connection state of the first magnetic-attraction-type connector 102 and the second magnetic-attraction-type connector 20 is abnormal when the electronic device 10 is charged, there is a large safety risk, and the connection between the first magnetic-attraction-type connector 102 and the charging circuit can be directly disconnected; when the electronic device performs data transmission with other external devices, the current passing through each contact of the first magnetic-type connector 102 is usually small, even if the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal, the electronic device is not obviously damaged, and the potential safety hazard is small, so that the electronic device 10 can be controlled to send out the prompt message that the connection state of the first magnetic-type connector 102 is abnormal, and the connection of the first magnetic-type connector 102 and other circuits in the electronic device is not disconnected.
As a possible implementation manner, a current detection unit 1014 may be connected in series between the second contact 1022 of the first magnetic-type connector 102 and the control unit 1013, that is, an input end of the current detection unit 1014 is connected with the second contact 1022, and an output end is connected with a second input end of the control unit 1013. So that the current value passing through the second contact 1022 (i.e., the current value passing through the first magnetic-type connector 102) can be detected by the current detection unit 1014 and output to the control unit 1013.
Further, the control unit 1013 may determine whether the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal according to the acquired voltage value output by the voltage detection unit 1012 and the current value output by the current detection unit 1014, and whether the connection of the first magnetic-type connector 102 and other currents in the electronic device 10 needs to be disconnected when determining that the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal. That is, in one possible implementation form of the embodiment of the present application, the control unit 1013 is further configured to:
determining a current value passing through the first magnetically-attractable connector 102 according to an output value of the current detection unit 1014;
when the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is determined to be abnormal and the current value passing through the first magnetic-type connector 102 is greater than the threshold value, controlling a charging loop in the electronic device 10.
As a possible implementation manner, if the control unit 1013 determines that the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal according to the output value of the voltage detection unit 1012, the current value passing through the first magnetic-type connector 102 may be further determined according to the output value of the current detection unit 1014, and whether the electronic device 10 is currently charging may be determined according to the current value passing through the first magnetic-type connector 102.
Alternatively, a threshold value of the current value passing through the first magnetic-type connector 102 may be preset and stored in the control unit 1013, and then, according to a relationship between the current value passing through the first magnetic-type connector 102 and the threshold value, it is determined whether the electronic device 10 is currently being charged. If the current value in the first magnetic connector 1012 is greater than the threshold value, it may be determined that the electronic device 10 is currently being charged, that is, a charging loop in the electronic device 10 may be controlled, so as to avoid damage to the electronic device 10 due to an abnormal connection state between the first magnetic connector 102 and the second magnetic connector 20; if the current value through the first magnetic-type connector 1012 is smaller than the threshold value, it may be determined that the electronic device 10 is not currently charged, i.e., the charging loop in the electronic device 10 does not need to be controlled.
Further, when it is determined that the connection state between the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal and the control of the charging circuit in the electronic device 10 is required, the control unit may disconnect the connection between the first magnetic-type connector 102 and the charging circuit or disconnect the connection between the charging circuit and the battery in the electronic device 10. That is, in one possible implementation form of the embodiment of the present application, the control unit 1013 is further configured to:
disconnecting the first magnetic connector 102 from the charging loop;
or,
the battery in the electronic device 10 is disconnected from the charging loop.
When the electronic device 10 is charged by the connection between the first magnetic-type connector 102 and the second magnetic-type connector 20, the first magnetic-type connector 102 is connected to the battery in the electronic device 10 through the charging circuit in the electronic device 10, so that the battery is charged. Therefore, when the control unit determines that the connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20 is abnormal and needs to control the charging circuit in the electronic device 10, the disconnection of the first magnetic-type connector 102 and the battery in the electronic device 10 can be realized by disconnecting the first magnetic-type connector 102 and the charging circuit; the battery in the electronic device 10 can be disconnected from the charging loop by disconnecting the battery in the electronic device 10, so that the first magnetic connector 102 is disconnected from the battery in the electronic device 10, and the battery in the electronic device 10 is prevented from being damaged due to the abnormal connection state of the first magnetic connector 102 and the second magnetic connector 20.
Further, when the connection state between the first connector 102 and the second connector 20 is determined by connecting the current source 1011 in series between the first contact 1021 of the first connector 102 and the ground, although the current value of the current source 1011 in series is small, however, connecting a current source to the first contact 1021 of the first connector 102 for a long time still affects the normal operation of the first connector 102, and therefore, a switch module 1015 may be connected in series between the first contact 1021 and the current source 1011, and the on state of the switch module 1015 is controlled by the control unit 1013, when the connection state between the first connector 102 and the second connector 20 needs to be detected, the switch 1015 is turned on, therefore, the connection time between the first magnetic-type connector 102 and the current source 1011 is greatly reduced, and the influence of the current source 1011 on the first magnetic-type connector 102 is reduced. That is, in one possible implementation form of the embodiment of the present application, the control unit 1013 is further configured to:
when the voltage value output by the voltage detection unit 1012 is determined to be within a preset range, the switch component 1015 is controlled to be turned on.
When the first magnetic-attraction connector 102 is not connected to the second magnetic-attraction connector 20, the contacts of the first magnetic-attraction connector 102 are in an open circuit state, and the voltage between the contacts is 0, that is, the voltage between the first contact 1021 and the second contact 1022 is also 0; when the first magnetic connector 102 is connected to the second magnetic connector 20 and the contacts are in good contact with each other, the contacts of the first magnetic connector 102 are turned on by the contacts of the second magnetic connector 20, and a very small voltage value exists between the contacts of the first magnetic connector 102 due to the leakage current in the circuit.
As a possible implementation manner, a voltage child range output by the voltage detection unit 1012 may be preset, and the control unit 1013 may determine whether the first magnetic-type connector 102 is in a connected state with the second magnetic-type connector 20 by an output value of the voltage detection unit 1012 and the preset range. Specifically, if the voltage value output by the voltage detection unit 1012 is within a preset range, that is, the first magnetic connector 102 and the second magnetic connector 20 are in a connection state, the switch assembly 1015 may be controlled to be turned on, that is, the current source 1011 and the first contact 1021 are controlled to be turned on, so as to detect the connection state of the first magnetic connector 102 and the second magnetic connector 20; if the voltage value output by the voltage detection unit 1012 is not within the preset range, it can be determined that the first magnetically-attracted connector 102 and the second magnetically-attracted connector 20 are not in the connected state, i.e., the switch assembly 1015 does not need to be controlled to be turned on.
Note that the preset range is generally a small value. In actual use, the performance of the electronic device may be determined according to actual needs, and this is not limited in the embodiment of the present application.
Furthermore, the user can also select whether to detect the connection state of the first magnetic connector 102 and the second magnetic connector 20 according to the user's own needs. That is, in one possible implementation form of the embodiment of the present application, the control unit 1013 is further configured to:
when a detection instruction is obtained, the switch assembly 1015 is controlled to be turned on.
As a possible implementation manner, the control unit 1013 may further obtain a detection instruction sent by the user through the electronic device 10, and when the detection instruction is obtained, control the switch assembly 1015 to be turned on to detect a connection state of the first magnetic-type connector 102 and the second magnetic-type connector 20.
Optionally, a physical button may be provided in the electronic device 10, and when the control unit 1013 detects that the physical button is triggered, it may be determined that a detection instruction is acquired, and the switch component 1013 is controlled to be turned on; alternatively, detection software may be installed in the electronic device 10, and when the control unit obtains a detection instruction sent by the user through the detection software, the switch assembly 1015 may be controlled to be turned on.
It should be noted that, in actual use, the manner in which the user inputs the detection instruction may be preset according to actual needs, and this is not limited in this application embodiment.
Further, a proximity sensor 1016 may be provided near the first magnetic-type connector 102, so that whether the first magnetic-type connector 102 is connected to the second magnetic-type connector 20 is determined by an output value of the proximity sensor 1016. That is, in one possible implementation form of the embodiment of the present application, the control unit 1013 is further configured to:
and controlling the switch component to be conducted when the first magnetic-type connector is determined to be connected according to the output value of the proximity sensor 1016.
As one possible implementation, the proximity sensor 1016 may be disposed adjacent to the first magnetically-attractable connector 102, such that the proximity sensor 1016 may detect a distance between the first magnetically-attractable connector 102 and another object.
Alternatively, a second threshold value of the output value of the proximity sensor may be preset, and the control unit 1013 may determine whether the first magnetic-type connector 102 is connected according to the relationship between the output value of the proximity sensor 1016 and the preset second threshold value. Specifically, if the control unit 1013 determines that the output value of the proximity sensor 1016 is smaller than the second threshold, it may be determined that the first magnetic-type connector 102 is connected, that is, the switch assembly 1015 may be controlled to be turned on; if the control unit 1013 determines that the output value of the proximity sensor 1016 is greater than the second threshold value, it may be determined that the first magnetically-attractable connector 102 is not connected, i.e., it is not necessary to control the switch assembly 1015 to be turned on.
It should be noted that the second threshold value may be preset to a smaller value, for example, the second threshold value may be preset to 1 mm. In actual use, the second threshold may be preset according to actual needs, which is not limited in the embodiment of the present application.
The magnetic connector control circuit in the electronic device provided by the embodiment of the application, by connecting the current source in series between the first contact of the first magnetic connector and the ground wire, and connecting the switch assembly in series between the current source and the first contact, and connecting the voltage detection unit in series between the first contact and the second contact of the first magnetic connector, and connecting the current detection unit in series between the second contact and the control unit, a proximity sensor is arranged near the first magnetic connector, and then the control unit determines the connection state of the first magnetic connector and the second magnetic connector according to the voltage value output by the voltage detection unit, and controls the charging circuit of the electronic device according to the connection state of the first magnetic connector and the second magnetic connector and the output value of the current detection unit, and controls the charging circuit of the electronic device according to the output value of the voltage detection unit or the output value of the proximity sensor, the conductive state of the switching component is determined. From this, through set up the switch module between first contact and electric current source, concatenate the current detection subassembly between second contact and the control unit, and set up proximity sensor near first magnetism type connector, not only can in time discover that the first magnetism is inhaled the bad contact phenomenon between formula connector and the second magnetism, reduced the potential safety hazard, can reduce the influence that the electric current source inhaled the formula connector to first magnetism in addition, further improved the reliability of inhaling the formula connector.
In order to implement the above embodiments, the present application further provides an electronic device.
The electronic device comprises a first magnetic-type connector and the magnetic-type connector control circuit in the electronic device.
The electronic equipment that this application embodiment provided, can utilize as before electronic equipment in magnetism inhale formula connector control circuit, through concatenating the current source between first contact in the formula connector is inhaled to first magnetism and the ground wire, it connects voltage detection unit to inhale to concatenate between the first contact of formula connector and the second contact at first magnetism, and then according to the voltage value of voltage detection unit output through the control unit, confirm the connection status that formula connector is inhaled to first magnetism and second magnetism, wherein, the third contact in the formula connector is inhaled to second magnetism is connected with the first contact of first magnetism and inhale the formula connector, fourth contact in the formula connector is inhaled to second magnetism is connected with the second contact of first magnetism and inhale the formula connector. From this, for the first contact of first magnetism type connector applys voltage through the electric current source, and utilize the difference of the voltage value that the control unit was exported according to voltage detection unit and the voltage value that the electric current source applyed on the first contact, confirm that first magnetism type connector and second magnetism type connector's connected state is inhaled, thereby can in time discover that first magnetism type connector and second magnetism type connector inhale the contact failure phenomenon between the type connector, the reliability of magnetism type connector has been improved, the potential safety hazard has been reduced.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A magnetic attraction type connector control circuit in an electronic device, comprising: the device comprises a current source, a voltage detection unit and a control unit;
the positive output end of the current source is connected with a first contact in the first magnetic-type connector, and the negative output end of the current source is connected with the ground, wherein the first contact is a suspended contact in the first magnetic-type connector;
one input end of the voltage detection unit is connected with the first contact, and the other input end of the voltage detection unit is connected with a second contact in the first magnetic-type connector, wherein the second contact is a grounding contact in the first magnetic-type connector;
the output end of the voltage detection unit is connected with the first input end of the control unit;
the control unit is used for determining the connection state of the first magnetic type connector and the second magnetic type connector according to the voltage value output by the voltage detection unit, wherein the third contact of the second magnetic type connector is the contact corresponding to the first contact, the fourth contact of the second magnetic type connector is the contact corresponding to the second contact, and the third contact is connected with the fourth contact.
2. The control circuit of claim 1, wherein the control unit is further to: and when the abnormal connection state of the first magnetic-type connector and the second magnetic-type connector is determined, disconnecting the first magnetic-type connector from other circuits.
3. The control circuit of claim 2, wherein the control circuit further comprises: a current detection unit;
the current detection unit is connected in series with one grounding contact in the first magnetic-type connector;
the output end of the current detection unit is connected with the second input end of the control unit;
the control unit is further used for determining a current value passing through the first magnetic type connector according to the output value of the current detection unit;
the control unit is specifically used for determining that the first magnetic type connector and the second magnetic type connector are abnormal in connection state and pass through the current value in the first magnetic type connector is larger than a threshold value, and then controlling the charging loop in the electronic equipment.
4. The control circuit of claim 3, wherein the control unit is specifically configured to: disconnecting the first magnetic-type connector from the charging loop;
or,
and disconnecting the battery in the electronic equipment from the charging loop.
5. The control circuit of claim 1, wherein the control unit is further to: when determining that the connection state of the first magnetic type connector and the second magnetic type connector is abnormal, outputting a reminding message that the first magnetic type connector is abnormal in connection through the electronic equipment.
6. The control circuit of any of claims 1-5, further comprising: a switch assembly;
the switch assembly is connected in series with the current source and the first contact;
the control unit is also used for controlling the conducting state of the switch assembly.
7. The control circuit of claim 6,
the control unit is specifically configured to control the switch assembly to be turned on when it is determined that the voltage value output by the voltage detection unit is within a preset range.
8. The control circuit of claim 6,
the control unit is specifically configured to control the switch assembly to be turned on when the detection instruction is obtained.
9. The control circuit of claim 6, further comprising: a proximity sensor;
the output end of the proximity sensor is connected with the third input end of the control unit;
the control unit is specifically configured to control the switch assembly to be turned on when it is determined that the first magnetic connector is connected according to the output value of the proximity sensor.
10. An electronic device comprising a first magnetically-attractable connector and the control circuit of the magnetically-attractable connector as claimed in any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920346093.1U CN209821332U (en) | 2019-03-18 | 2019-03-18 | Magnetic connector control circuit in electronic equipment and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920346093.1U CN209821332U (en) | 2019-03-18 | 2019-03-18 | Magnetic connector control circuit in electronic equipment and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209821332U true CN209821332U (en) | 2019-12-20 |
Family
ID=68876123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920346093.1U Active CN209821332U (en) | 2019-03-18 | 2019-03-18 | Magnetic connector control circuit in electronic equipment and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209821332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564212A (en) * | 2020-11-30 | 2021-03-26 | 珠海读书郎网络教育有限公司 | System and method for charging protection of telephone watch |
-
2019
- 2019-03-18 CN CN201920346093.1U patent/CN209821332U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564212A (en) * | 2020-11-30 | 2021-03-26 | 珠海读书郎网络教育有限公司 | System and method for charging protection of telephone watch |
| CN112564212B (en) * | 2020-11-30 | 2021-07-20 | 珠海读书郎网络教育有限公司 | System and method for charging protection of telephone watch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3343238B1 (en) | Short-circuit prevention detection device and user terminal | |
| KR102080435B1 (en) | Multpurpose electrical charging structure | |
| US20030211772A1 (en) | Connector with signal detection device | |
| CN109449692B (en) | Adapter and adapter module | |
| RU2014117180A (en) | DIGITAL DETECTION OF THE SAMPLE IN ANALYTE METER | |
| US20190013628A1 (en) | Connector protection method and system | |
| CN104918154B (en) | The method whether earphone socket and test earphone are inserted in place | |
| US10554058B2 (en) | Systems and methods for monitoring an operating status of a connector | |
| CN209821332U (en) | Magnetic connector control circuit in electronic equipment and electronic equipment | |
| TW201815006A (en) | Low-voltage, high-current charging with over-voltage sensing | |
| TWI776715B (en) | Cable assembly capable of detecting bidirectional charging-current | |
| WO2014192834A1 (en) | Battery pack and portable electronic apparatus | |
| CN212410835U (en) | Detection circuit of alternating current input line and socket with detection circuit | |
| CN212013016U (en) | Wireless earphone reset circuit and wireless earphone | |
| JP6804892B2 (en) | Electrical equipment | |
| CN103904488B (en) | Earphone socket | |
| CN106299898B (en) | A kind of interface protector and guard method | |
| CN112180301B (en) | Detection device applied to connector | |
| CN107706977B (en) | Charging current detection method and charging device | |
| US11575232B2 (en) | Electrical plug | |
| CN104934953A (en) | System with potential balancing component, particularly battery system | |
| JP2017041983A (en) | Charging system | |
| US10978747B2 (en) | Leakage detection device and battery pack having the same | |
| CN113162130B (en) | Contact type charging device, wearable equipment and contact type charging system | |
| WO2017201738A1 (en) | Battery protecting board, battery, and mobile terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |