CN103369077A - Mobile terminal and circuit for implementing hot plug of subscriber identity module card of mobile terminal - Google Patents
Mobile terminal and circuit for implementing hot plug of subscriber identity module card of mobile terminal Download PDFInfo
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- CN103369077A CN103369077A CN2013102735224A CN201310273522A CN103369077A CN 103369077 A CN103369077 A CN 103369077A CN 2013102735224 A CN2013102735224 A CN 2013102735224A CN 201310273522 A CN201310273522 A CN 201310273522A CN 103369077 A CN103369077 A CN 103369077A
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Abstract
The invention discloses a mobile terminal and a circuit for implementing the hot plug of a subscriber identity module card of the mobile terminal. The mobile terminal comprises a body and a detachable rear cover; the body or the rear cover is provided with a mechanical switch which is connected with a power supply control circuit of the subscriber identity module card; when the rear cover is detached from the body, the mechanical switch is in a first state to trigger the power supply control circuit to control the power failure of the subscriber identity module card; and when the rear cover and the body are fastened, the mechanical switch is in a second state to trigger the power supply control circuit to control the power supply of the subscriber identity module card. Through the mode, the safe and reliable hot plug operation of the subscriber identity module card can be implemented, and the subscriber identity module card is effectively prevented from being damaged due to abnormal power failure.
Description
Technical field
The present invention relates to a kind of portable terminal and the hot-swappable circuit of realization mobile phone users identification card.
Background technology
When using portable terminal, because a variety of causes, for example SIM card is damaged, and reduces cost of the phone call, obtains better speech quality etc., and the user often need to change SIM card, as changing the SIM card of different operators, perhaps changes the SIM card of different regions etc.Yet, if the user directly takes out SIM card under the state of mobile terminal-opening from the SIM card seat, then so that SIM can not have enough time to preserve data in the portable terminal because of immediately outage, portable terminal may be made mistakes when reading the data of this SIM card next time, even can't Card Reader.
In the prior art, solution of the above problems is normally cut off first the power supply of portable terminal, will take out after the portable terminal shutdown and then with SIM card.But, thus, when each replacing SIM card, all need first portable terminal to be shut down, then could take out SIM card, had a strong impact on the convenience that portable terminal uses, especially when the user needed the frequent SIM card, this impact was more outstanding.That therefore, realizes the portable terminal SIM card hot-swappablely becomes urgent demand.Hot-swappable function is charged plug, refers to take out in the situation of not cutting off the portable terminal power supply or insert SIM card, and the user does not need the power supply of turning-off mobile terminal to change operation to SIM thus, has greatly made things convenient for the replacing of SIM.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of portable terminal and the hot-swappable circuit of realization mobile phone users identification card, can realize the hot-swappable operation that Subscriber Identity Module is safe and reliable, effectively avoids Subscriber Identity Module to damage because of improper power down.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of portable terminal of realizing that Subscriber Identity Module is hot-swappable is provided, comprises fuselage main body and removable rear cover; The fuselage main body comprises the display surface of placing display screen and the rear back side of corresponding bonnet, and removable rear cover is fastened on the fuselage main body; The fuselage main body comprises the power-supplying circuit of Subscriber Identity Module, fuselage main body or bonnet are provided with mechanical switch, mechanical switch is connected with power-supplying circuit, so that when bonnet is separated the fuselage main body, mechanical switch is positioned at the first state and triggers power-supplying circuit according to storage protocol and the outage of the normal power-off sequential control of Subscriber Identity Module Subscriber Identity Module, and when bonnet and fuselage main body fastened, mechanical switch was positioned at the second state and triggers power-supplying circuit and power on according to the normal electrifying timing sequence control of Subscriber Identity Module Subscriber Identity Module.
Wherein, mechanical switch is arranged at the rear back side of fuselage main body, mechanical switch comprises first end and the second end, power-supplying circuit comprises pull-up resistor and controller, one end of pull-up resistor is used for input voltage signal, the other end of pull-up resistor is connected with the first end of mechanical switch, and the second end of mechanical switch is used for being connected with default low level interface, and the other end of pull-up resistor is connected that with controller controller is exported interrupt signal; Control first end and the disconnection of the second end of mechanical switch when bonnet is separated the fuselage main body and make mechanical switch be positioned at the first state, pull-up resistor is by the interrupt signal of voltage signal to controller output high level signal, controller is according to the outage of high level signal control Subscriber Identity Module, control first end and the electric connection of the second end of mechanical switch when bonnet is fastened on the fuselage main body and make mechanical switch be positioned at the second state, to the interrupt signal of controller output low level signal, controller powers on according to low level signal control Subscriber Identity Module so that pull-up resistor passes through mechanical switch ground connection.
Wherein, mechanical switch comprises the switch pedestal of metal clips and insulated plastic gum forming, mechanical switch is fixed in the rear back side of fuselage main body by switch pedestal, be provided with four metal pins on the switch pedestal, be respectively the first metal pins, the second metal pins, the 3rd metal pins and the 4th metal pins, four metal pins lay respectively at four positions of switch pedestal; The first metal pins and the second metal pins are positioned at an end position of switch pedestal and are electrically connected with the first end as mechanical switch, the 3rd metal pins and the 4th metal pins are positioned at the other end position of switch pedestal and are electrically connected with the second end as mechanical switch, metal clips comprises stiff end and free end, the stiff end of metal clips is positioned at the other end position of switch pedestal, the free end of metal clips is controlled the first metal pins when free state, the second metal pins and the 3rd metal pins, the 4th metal pins does not connect, so that the first end of mechanical switch and the second end disconnect, in the pressure-acting lower time of the free end of metal clips when bonnet and fuselage main body fasten, controlled the first metal pins, the second metal pins and the 3rd metal pins, the 4th metal pins connects, so that the first end of mechanical switch and the second end are electrically connected.
Wherein, switch pedestal also is provided with the first connection metal sheet and the second connection metal sheet, the first metal pins and the second metal pins and the first connection metal sheet are electrically connected with the first end as mechanical switch, and the 3rd metal pins and the 4th metal pins and the second connection metal sheet are electrically connected with the second end as mechanical switch; The stiff end of metal clips is fixed in the other end position of switch pedestal by a rotation axis, the free end of metal clips is in primary importance in free state, be in the second place under the pressure-acting of the free end of metal clips when bonnet and fuselage main body fastening, the second connection metal sheet is fixed on the rotation axis, mechanical switch also comprises a spring, one end of spring is fixed on the switch pedestal, and the other end of spring is fixed on the rotation axis; Be converted into the second place by primary importance under the pressure-acting of the free end of metal clips at bonnet and fuselage main body fastening the time, and rotation axis is rotated in a first direction, spring is in compressive state under the effect of rotation axis, and rotation axis drives the second connection metal sheet and moves, so that the second connection metal sheet contacts and is electrically connected with the first connection metal sheet, and then so that the first end of mechanical switch and the electric connection of the second end; When bonnet and the disengaging of fuselage main body, trigger spring and become free state from compressive state, be rotated in a second direction, with the control rotation axis, and then make the free end of metal clips be converted into primary importance by the second place, and drive the second connection metal sheet and move, so that the second connection metal sheet and the first connection metal sheet break away from, and then so that the first end of mechanical switch and the disconnection of the second end.
Another technical solution used in the present invention is: a kind of circuit of realizing that the mobile phone users identification card is hot-swappable is provided, the power-supplying circuit and the mechanical switch that is arranged on portable terminal fuselage main body or the removable rear cover that comprise Subscriber Identity Module, mechanical switch is connected with power-supplying circuit, so that when bonnet is separated the fuselage main body, mechanical switch is positioned at the first state and triggers power-supplying circuit according to storage protocol and the outage of the normal power-off sequential control of Subscriber Identity Module Subscriber Identity Module, and when bonnet and fuselage main body fastened, mechanical switch was positioned at the second state and triggers power-supplying circuit and power on according to the normal electrifying timing sequence control of Subscriber Identity Module Subscriber Identity Module.
Wherein, mechanical switch is arranged at the rear back side of fuselage main body, removable rear cover is fastened on the rear back side of fuselage main body, mechanical switch comprises first end and the second end, power-supplying circuit comprises pull-up resistor and controller, and an end of pull-up resistor is used for input voltage signal, and the other end of pull-up resistor is connected with the first end of mechanical switch, the second end of mechanical switch is used for being connected with default low level interface, and the other end of pull-up resistor is connected that with controller controller is exported interrupt signal; Control first end and the disconnection of the second end of mechanical switch when bonnet is separated the fuselage main body and make mechanical switch be positioned at the first state, pull-up resistor is by the interrupt signal of voltage signal to controller output high level signal, controller is according to the outage of high level signal control Subscriber Identity Module, control first end and the electric connection of the second end of mechanical switch when bonnet is fastened on the fuselage main body and make mechanical switch be positioned at the second state, to the interrupt signal of controller output low level signal, controller powers on according to low level signal control Subscriber Identity Module so that pull-up resistor passes through mechanical switch ground connection.
Wherein, mechanical switch comprises the switch pedestal of metal clips and insulated plastic gum forming, mechanical switch is fixed in the rear back side of fuselage main body by switch pedestal, be provided with four metal pins on the switch pedestal, be respectively the first metal pins, the second metal pins, the 3rd metal pins and the 4th metal pins, four metal pins lay respectively at four positions of switch pedestal; The first metal pins and the second metal pins are positioned at an end position of switch pedestal and are electrically connected with the first end as mechanical switch, the 3rd metal pins and the 4th metal pins are positioned at the other end position of switch pedestal and are electrically connected with the second end as mechanical switch, metal clips comprises stiff end and free end, the stiff end of metal clips is positioned at the other end position of switch pedestal, the free end of metal clips is controlled the first metal pins when free state, the second metal pins and the 3rd metal pins, the 4th metal pins does not connect, so that the first end of mechanical switch and the second end disconnect, in the pressure-acting lower time of the free end of metal clips when bonnet and fuselage main body fasten, controlled the first metal pins, the second metal pins and the 3rd metal pins, the 4th metal pins connects, so that the first end of mechanical switch and the second end are electrically connected.
Wherein, switch pedestal also is provided with the first connection metal sheet and the second connection metal sheet, the first metal pins and the second metal pins and the first connection metal sheet are electrically connected with the first end as mechanical switch, and the 3rd metal pins and the 4th metal pins and the second connection metal sheet are electrically connected with the second end as mechanical switch; The stiff end of metal clips is fixed in the other end position of switch pedestal by a rotation axis, the free end of metal clips is in primary importance in free state, be in the second place under the pressure-acting of the free end of metal clips when bonnet and fuselage main body fastening, the second connection metal sheet is fixed on the rotation axis, mechanical switch also comprises a spring, one end of spring is fixed on the switch pedestal, and the other end of spring is fixed on the rotation axis; Be converted into the second place by primary importance under the pressure-acting of the free end of metal clips at bonnet and fuselage main body fastening the time, and rotation axis is rotated in a first direction, spring is in compressive state under the effect of rotation axis, and rotation axis drives the second connection metal sheet and moves, so that the second connection metal sheet contacts and is electrically connected with the first connection metal sheet, and then so that the first end of mechanical switch and the electric connection of the second end; When bonnet and the disengaging of fuselage main body, trigger spring and become free state from compressive state, be rotated in a second direction, with the control rotation axis, and then make the free end of metal clips be converted into primary importance by the second place, and drive the second connection metal sheet and move, so that the second connection metal sheet and the first connection metal sheet break away from, and then so that the first end of mechanical switch and the disconnection of the second end.
The invention has the beneficial effects as follows: the situation that is different from prior art, in the portable terminal of the present invention, removable rear cover is fastened on the fuselage main body, be provided with mechanical switch in fuselage main body or bonnet, this mechanical switch is connected with the power-supplying circuit of Subscriber Identity Module, when bonnet is separated the fuselage main body, mechanical switch is positioned at the first state and triggers power-supplying circuit according to storage protocol and the outage of the normal power-off sequential control of Subscriber Identity Module Subscriber Identity Module, and when bonnet and fuselage main body fastening, mechanical switch is positioned at the second state and triggers power-supplying circuit and power on according to the normal electrifying timing sequence of Subscriber Identity Module control Subscriber Identity Module, and said process does not need the power supply of turning-off mobile terminal but separates or fasten the fuselage main body by bonnet and trigger, can realize the hot-swappable of Subscriber Identity Module, and before Subscriber Identity Module is taken out and so that the Subscriber Identity Module normal power down, can avoid Subscriber Identity Module to damage because of improper power down, can improve Subscriber Identity Module and carry out hot-swappable security reliability.
Description of drawings
Fig. 1 is the structural representation that the present invention realizes the hot-swappable portable terminal of Subscriber Identity Module one execution mode;
Fig. 2 is that the portable terminal among Fig. 1 is realized the hot-swappable circuit theory diagrams of Subscriber Identity Module by mechanical switch;
Fig. 3 is the plan structure schematic diagram of the mechanical switch of portable terminal among Fig. 1;
Fig. 4 is the side-looking structural representation of the mechanical switch of portable terminal among Fig. 1;
Fig. 5 is the internal structure schematic diagram of the mechanical switch of portable terminal among Fig. 1.
Embodiment
Below in conjunction with drawings and embodiments portable terminal of the present invention is elaborated.
Consult Fig. 1, the present invention realizes that in the execution mode of the portable terminal that Subscriber Identity Module is hot-swappable, portable terminal comprises fuselage main body 10 and removable rear cover 11.Fuselage main body 10 comprises the display surface 101 of placing display screen and the rear back side 102 of corresponding bonnet 11.Removable rear cover 11 is fastened on fuselage main body 10 by the rear back side 102 suitable with it, with the cell rear cover as portable terminal, for the protection of devices such as the battery at the fuselage main body 10 rear back sides, various circuit boards.Subscriber Identity Module is arranged at the rear back side of fuselage main body 10 usually, thereby can change by bonnet 11 is separated fuselage main body 10 when needs are changed Subscriber Identity Module.
Fuselage main body 10 comprises the power-supplying circuit 103 of Subscriber Identity Module, is used for powering on and cutting off the power supply of control Subscriber Identity Module.Fuselage main body 10 is provided with a mechanical switch 104, and this mechanical switch 104 is positioned at the rear back side 102 of fuselage main body 10, and is connected with power-supplying circuit 103.When bonnet 11 is separated fuselage main body 10, mechanical switch 104 is positioned at the first state and triggers power-supplying circuit 103 according to storage protocol and the outage of the normal power-off sequential control of Subscriber Identity Module Subscriber Identity Module, and when bonnet 11 was fastened on fuselage main body 10, mechanical switch 104 was positioned at the second state and triggers power-supplying circuit 103 and power on according to the normal electrifying timing sequence of Subscriber Identity Module control Subscriber Identity Module.When needs are changed Subscriber Identity Module, just can change after at first needing the bonnet 11 of portable terminal separated the fuselage main body, in the present embodiment, by the rear back side 102 in fuselage main body 10 mechanical switch 104 is set, effect by mechanical switch 104 is controlled the Subscriber Identity Modules outage so that trigger power-supplying circuit 103 when bonnet 11 is separated fuselage main body 10, thereby can just make the Subscriber Identity Module normal power down before taking out Subscriber Identity Module.In addition, when Subscriber Identity Module was put into the deck of fuselage main body 10, the effect triggering power-supplying circuit 103 control Subscriber Identity Modules by mechanical switch 104 when bonnet 11 is fastened on fuselage main body 10 powered on.Said process only needs that fuselage main body 10 is separated or fastened to bonnet 11 and can finish, the power supply that does not all need turning-off mobile terminal, realize thus the hot-swappable of Subscriber Identity Module, and effectively avoid Subscriber Identity Module to damage because of improper power down, improve the hot-swappable reliability of Subscriber Identity Module.
In conjunction with Fig. 2-Fig. 5, the mechanical switch 104 of present embodiment is arranged at the rear back side 102 of fuselage main body 10, comprises first end 1041 and the second end 1042.Power-supplying circuit 103 comprises pull-up resistor R and controller 1031, wherein, the end of pull-up resistor R is used for input voltage signal, the first end 1041 of the other end of pull-up resistor R and mechanical switch 104 is electrically connected, and be connected with controller 1031, so that controller 1031 is inputted interrupt signals, the second end 1042 of mechanical switch 104 is used for being connected with default low level interface, is connected such as the ground signalling with the Mobile terminal main board circuit.Particularly, mechanical switch 104 comprises the switch pedestal 1044 of metal clips 1043 and insulated plastic gum forming.Mechanical switch 104 is fixed in the rear back side 102 of fuselage main body 10 by switch pedestal 1044, be provided with four metal pins in switch pedestal 1044, be respectively the first metal pins 1045, the second metal pins 1046, the 3rd metal pins 1047 and the 4th metal pins 1048.Four metal pins lay respectively at four positions of switch pedestal 1044.Wherein, the first metal pins 1045 and the second metal pins 1046 are positioned at switch pedestal 1,044 one end positions and are electrically connected the other end position that is positioned at switch pedestal 1044 with first end 1041, the three metal pins 1047 and the 4th metal pins 1048 as mechanical switch 104 and are electrically connected with the second end 1042 as mechanical switch 104.Metal clips 1043 comprises stiff end 10431 and free end 10432.The stiff end 10431 of metal clips 1043 is arranged on switch pedestal 1044 and the 3rd metal pins 1047 other end position identical with the 4th metal pins 1048.The free end 10432 of metal clips 1043 is controlled the first metal pins 1045 in free state lower time, the second metal pins 1046 is not connected with the 3rd metal pins 1047, the 4th metal pins 1048, so that the first end 1041 of mechanical switch 104 and the second end 1042 disconnect, and then so that mechanical switch 104 not conductings and be positioned at the first state; In the pressure-acting lower time of the free end 10432 of metal clips 1043 when bonnet 11 and fuselage main body 10 fastens, controlled the first metal pins 1045, the second metal pins 1046 is connected with the 3rd metal pins 1047, the 4th metal pins 1048, so that the first end 1041 of mechanical switch 104 and the second end 1042 are electrically connected, and then so that mechanical switch 104 conductings and be positioned at the second state.
Particularly, switch pedestal 1044 also is provided with the first connection metal sheet 1049 and the second connection metal sheet 1050.The first metal pins 1045 and the second metal pins 1046 and the first connection metal sheet 1049 be electrically connected with as first end 1041, the three metal pins 1047 of mechanical switch 104 and the 4th metal pins 1048 and 1050 electric connections of the second connection metal sheet with the second end 1042 as mechanical switch 104.Metal clips 1043 is fixed in the switch pedestal 1044 on the other end position identical with the 4th metal pins 1048 with the 3rd metal pins 1047 by a rotation axis 10433.As shown in fig. 5, rotation axis 10433 ovalizes can certainly be other shapes such as rectangle, taper.Rotation axis 10433 is fixed on the switch pedestal 1044 by a central rotating shaft 10434, rotation axis 10433 take central rotating shaft 10434 as the line of demarcation corresponding rotation axis upper end and the rotation axis lower end of being divided into.Rotation axis 10433 rotates around central rotating shaft 10434, and the stiff end 10431 of metal clips 1043 is fixed on the rotation axis 10433, and metal clips 1043 and rotation axis 10433 interact, and another is also along with rotation during a therein rotation.The free end 10432 of metal clips 1043 is in free state when not being subjected to External Force Acting, free end 10432 under free state is in primary importance A, and is in second place B under the pressure-acting of the free end 10432 of metal clips 1043 when bonnet 11 fastens with fuselage main body 10.The second connection metal sheet 1050 is fixed on the upper end position of rotation axis 10433.Mechanical switch 104 also comprises a spring 1051, is used for when the free end 10432 of metal clips 1043 is not subjected to External Force Acting and metal clips 1043 is upspring, so that the free end 10432 of metal clips 1043 is in primary importance A.One end of spring 1051 is fixed on the switch pedestal 1044, and the other end is fixed on the lower end position of rotation axis 10433.When the free end 10432 of metal clips 1043 is subjected to External Force Acting and is converted into second place B by primary importance A, the upper end position of rotation axis 10433 rotates along first direction CD along with the change of metal clips 10433 positions, this moment, spring 1051 was in compressed state, and the second connection metal sheet 1050 that is fixed on rotation axis 10433 upper end positions also moves to the first connection metal sheet 1049 places along with the rotation of rotation axis 10433, to contact and to be electrically connected with the first connection metal sheet 1049, thereby so that the first metal pins 1045, the second metal pins 1046 and the 3rd metal pins 1047, the 4th metal pins 1048 is electrically connected, namely so that the first end 1041 of mechanical switch 104 and 1042 electric connections of the second end.When the free end 10432 of metal clips 1043 is not subjected to External Force Acting, spring 1051 becomes free state by compressive state, the lower end position of 1051 pairs of rotation axiss 10433 of spring this moment produces an elastic force, under the effect of this elastic force so that the upper end position of rotation axis 10433 rotate along second direction DC, and then drive metal clips 1043 and the second connection metal sheet 1050 moves, so that metal clips 1043 is converted into primary importance A by second place B, and so that the second connection metal sheet 1050 and 1049 disengagings of the first connection metal sheet, and then so that the first metal pins 1045, the second metal pins 1046 and the 3rd metal pins 1047, the 4th metal pins 1048 does not connect, namely so that the first end 1041 of mechanical switch 104 and 1042 disconnections of the second end.The mechanical switch 104 of present embodiment, effect by spring 1051 can so that the free end 10432 of metal clips 1043 automatically upspring in the situation of external force not having, and the rotation axis 10433 by mechanical switch drives the first connection metal sheet 1049 and is connected 1050 connections of connection metal sheet, the connected mode that belongs to mechanical presses can improve reliability.
The below specifies the portable terminal of present embodiment and realizes the hot-swappable of Subscriber Identity Module by mechanical switch 104.
Portable terminal in normal operation, bonnet 11 normally is fastened on the rear back side 102 of fuselage main body 10, this moment metal clips 1043 free end 10432 under the pressure-acting of bonnet 11 and be in second place B, this moment, spring 1051 was in compressive state, rotation axis 10433 is with the second connection metal sheet 1050 jack-up upwards, so that the second connection metal sheet 1050 contacts and is electrically connected with the first connection metal sheet 1049, thereby so that the first metal pins 1045, the second metal pins 1046 and the 3rd metal pins 1047, the 4th metal pins 1048 is electrically connected and makes mechanical switch 104 conductings.And the second end 1042 of mechanical switch 104 connects the low level interface, when mechanical switch 104 conducting, pull-up resistor R is by mechanical switch 104 ground connection, thereby the voltage signal that inputs to pull-up resistor R is dragged down as low level signal inputs in the controller 1031, namely under the state of portable terminal normal operation pull-up resistor R to the interrupt signal of controller 1031 output low levels.
Under the mobile terminal-opening state, when the user need to change Subscriber Identity Module, at first need the bonnet 11 of portable terminal is opened, when bonnet 11 is separated fuselage main body 10, since metal clips 1043 no longer be subjected to bonnet 11 pressure-acting and so that spring 1051 can become free state by compressive state, thereby the lower end position of 1051 pairs of rotation axiss 10433 of spring produces an elastic force, so that the upper end position of rotation axis 10433 rotates along second direction DC, thereby driving the second connection metal sheet 1050 moves, so that the second connection metal sheet 1050 and the first connection metal sheet 1049 break away from, and then so that the first metal pins 1045, the second metal pins 1046 and the 3rd metal pins 1047, the 4th metal pins 1048 does not connect, mechanical switch 104 disconnects and is positioned at the first state, so that the interrupt signal that the voltage signal that inputs to pull-up resistor R produces after through pull-up resistor R becomes high level signal by low level signal.The interrupt signal of this high level inputs in the controller 1031; after controller 1031 receives the interrupt signal of this high level; finish the storage protection of card information and safely outage according to storage protocol and the normal power-off sequential control of Subscriber Identity Module Subscriber Identity Module; thereby the user can extract Subscriber Identity Module safely, has avoided thus Subscriber Identity Module to damage because of improper outage.Under the mobile terminal-opening state, the user did not power on the Subscriber Identity Module deck before Subscriber Identity Module is inserted portable terminal.
After Subscriber Identity Module inserted portable terminal, bonnet 11 is fastened on the rear back side 102 of fuselage main body 10, the free end 10432 of metal clips 1043 is depressed into second place B by the primary importance A of free state under the effect of bonnet 11, thereby the upper end position that drives rotation axis 10433 rotates along the CD direction, and the second connection metal sheet 1050 moves to the position of the first connection metal sheet 1049 along with the rotation of rotation axis 10433, to contact and to be electrically connected with the first connection metal sheet 1049, thereby so that the first metal pins 1045, the second metal pins 1046 and the 3rd metal pins 1047, the 4th metal pins 1048 is communicated with, mechanical switch 104 conductings and be positioned at the second state, thereby so that pull-up resistor R is by mechanical switch 104 ground connection, so that being dragged down by high level signal, the interrupt signal that the voltage signal that inputs to pull-up resistor R produces after through pull-up resistor R is low level signal.After controller 1031 receives this low level interrupt signal, power on safely and initialization according to the normal electrifying timing sequence control of Subscriber Identity Module Subscriber Identity Module.
By four metal pins are set in switch pedestal 1044, be conducive to the first end of mechanical switch 104 and fixing of the second end structure, improve the reliability of mechanical switch.In addition, consult Fig. 4, also be provided with two reference columns 1052 and 1053 on switch pedestal 1044, switch pedestal 1044 is fixed on the rear back side 102 of fuselage main body 10 by two reference columns 1052 and 1053.Effect by two reference columns 1052 and 1053 also is conducive to the fixing of switch pedestal 1044, so that switch pedestal 1044 is not easy to absent-mindedness.
The portable terminal of present embodiment can be the portable mobile apparatus such as mobile phone, panel computer.
In the present embodiment, by the effect of bonnet 11 so that metal clips 1043 change in primary importance and the second place, and then conducting or the disconnection of control mechanical switch 104, thereby produce different interrupt signals to controller 1031, controller 1031 is controlled powering on of Subscriber Identity Module according to different interrupt signals or is cut off the power supply, and said process is not all wanted the portable terminal powered-down, can realize the hot-swappable of Subscriber Identity Module thus, and effectively avoid Subscriber Identity Module to damage because of improper outage, improve hot-swappable reliability and the fail safe of Subscriber Identity Module.
In other embodiments, also can directly realize by metal clips conducting or the disconnection of mechanical switch.For example, can make stiff end and the 3rd metal pins and the electric connection of the 4th metal pins of metal clips, the free end of metal clips breaks away from the first metal pins and the second metal pins under free state.When bonnet is fastened on the fuselage main body, be pressed towards the first metal pins and the second metal pins under the pressure-acting of the free end of metal clips when bonnet and fuselage main body fastening, the first metal pins and the second metal pins are by metal clips and the 3rd metal pins and the electric connection of the 4th metal pins, thereby mechanical switch is in conducting state, mechanical switch is in the second state, and then so that pull-up resistor to the interrupt signal of controller output low level.When bonnet is separated the fuselage main body, the free end of metal clips is not subjected to the effect of external force and the free state of rebounding, free end and the first metal pins and the second metal pins break away from and so that mechanical switch disconnect, mechanical switch is positioned at the first state, and then so that pull-up resistor is exported the interrupt signal of high level to controller.
Certainly, also two metal pins can only be set on the switch pedestal of mechanical switch, two metal pins are respectively as first end and second end of mechanical switch, the stiff end of metal clips can be fixed on the first end of mechanical switch and the arbitrary end in the second end, for example be fixed on the second end of mechanical switch, the free end of metal clips breaks away from the metal pins of first end under free state.The free end of metal clips is pressed towards the metal pins of first end and makes the mechanical switch conducting under the pressure-acting when bonnet and fuselage main body fastening, to produce corresponding low level interrupt signal.And after bonnet is separated the fuselage main body, the effect that the free end of metal clips no longer is stressed and the position when free state of rebounding, thereby so that the metal pins of metal clips and first end breaks away from, and then disconnects mechanical switch, thereby produce corresponding high level interrupt signal.By the way, can realize the hot-swappable of Subscriber Identity Module equally.
In addition, mechanical switch also can be arranged on the bonnet, the first end that when bonnet is fastened on the fuselage main body, makes mechanical switch be connected end and connect respectively pull-up resistor and default low level interface, and pass through the effect of fuselage main body so that the metal clips of mechanical switch and the second end in contact, thereby make whole circuit be in conducting state, controller receives low level interrupt signal, and mechanical switch also breaks away from the fuselage main body when bonnet is separated the fuselage main body, thereby so that pull-up resistor and default low level interface disconnect, controller receives the interrupt signal of high level.Can realize the hot-swappable of Subscriber Identity Module equally by the way.
The present invention also provides a kind of circuit of realizing that the mobile phone users identification card is hot-swappable, comprises that the power-supplying circuit of Subscriber Identity Module and the machinery that is arranged on portable terminal fuselage main body or the removable rear cover opens.Wherein, power-supplying circuit and mechanical switch are respectively power-supplying circuit and the mechanical switch in the respective embodiments described above.
The above only is embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (8)
1. a portable terminal of realizing that Subscriber Identity Module is hot-swappable is characterized in that, comprises fuselage main body and removable rear cover;
Described fuselage main body comprises the display surface of placing display screen and the rear back side of corresponding bonnet, and described removable rear cover is fastened on described fuselage main body;
Described fuselage main body comprises the power-supplying circuit of described Subscriber Identity Module, described fuselage main body or bonnet are provided with mechanical switch, described mechanical switch is connected with described power-supplying circuit, so that when described bonnet is separated the fuselage main body, described mechanical switch is positioned at the first state and triggers described power-supplying circuit and control described Subscriber Identity Module outage according to storage protocol and the normal power-off sequential of Subscriber Identity Module, and when described bonnet and fuselage main body fastened, described mechanical switch was positioned at the second state and triggers described power-supplying circuit and control described Subscriber Identity Module according to the normal electrifying timing sequence of Subscriber Identity Module and power on.
2. portable terminal according to claim 1 is characterized in that,
Described mechanical switch is arranged at the rear back side of described fuselage main body, described mechanical switch comprises first end and the second end, described power-supplying circuit comprises pull-up resistor and controller, one end of described pull-up resistor is used for input voltage signal, the other end of described pull-up resistor is connected with the first end of described mechanical switch, the second end of described mechanical switch is used for being connected with default low level interface, and the other end of described pull-up resistor is connected that with described controller described controller is exported interrupt signal;
Control first end and the disconnection of the second end of described mechanical switch when described bonnet is separated the fuselage main body and make described mechanical switch be positioned at the first state, described pull-up resistor is by the interrupt signal of described voltage signal to described controller output high level signal, described controller is controlled described Subscriber Identity Module outage according to described high level signal, control first end and the electric connection of the second end of described mechanical switch when described bonnet is fastened on the fuselage main body and make mechanical switch be positioned at the second state, so that described pull-up resistor by described mechanical switch ground connection to the interrupt signal of described controller output low level signal, described controller is controlled described Subscriber Identity Module according to described low level signal and is powered on.
3. portable terminal according to claim 2 is characterized in that,
Described mechanical switch comprises the switch pedestal of metal clips and insulated plastic gum forming, described mechanical switch is fixed in the rear back side of described fuselage main body by described switch pedestal, be provided with four metal pins on the described switch pedestal, be respectively the first metal pins, the second metal pins, the 3rd metal pins and the 4th metal pins, described four metal pins lay respectively at four positions of described switch pedestal;
Described the first metal pins and the second metal pins are positioned at an end position of switch pedestal and are electrically connected with the first end as mechanical switch, described the 3rd metal pins and the 4th metal pins are positioned at the other end position of switch pedestal and are electrically connected with the second end as mechanical switch, described metal clips comprises stiff end and free end, the stiff end of described metal clips is positioned at the other end position of described switch pedestal, the free end of described metal clips is controlled described the first metal pins when free state, the second metal pins and described the 3rd metal pins, the 4th metal pins does not connect, so that the first end of described mechanical switch and the second end disconnect, in the pressure-acting lower time of the free end of described metal clips when described bonnet and fuselage main body fasten, controlled described the first metal pins, the second metal pins and described the 3rd metal pins, the 4th metal pins connects, so that the first end of described mechanical switch and the second end are electrically connected.
4. portable terminal according to claim 3 is characterized in that,
Described switch pedestal also is provided with the first connection metal sheet and the second connection metal sheet, described the first metal pins and the second metal pins and described the first connection metal sheet are electrically connected with the first end as mechanical switch, and described the 3rd metal pins and the 4th metal pins and described the second connection metal sheet are electrically connected with the second end as mechanical switch;
The stiff end of described metal clips is fixed in the other end position of described switch pedestal by a rotation axis, the free end of described metal clips is in primary importance in free state, be in the second place under the pressure-acting of the free end of described metal clips when described bonnet and fuselage main body fastening, described the second connection metal sheet is fixed on the described rotation axis, described mechanical switch also comprises a spring, one end of described spring is fixed on the described switch pedestal, and the other end of described spring is fixed on the described rotation axis;
Be converted into the second place by primary importance under the pressure-acting of the free end of described metal clips when described bonnet and fuselage main body fastening, and described rotation axis is rotated in a first direction, described spring is in compressive state under the effect of described rotation axis, and described rotation axis drives described the second connection metal sheet and moves, so that described the second connection metal sheet contacts and is electrically connected with described the first connection metal sheet, and then so that the first end of described mechanical switch and the electric connection of the second end; When described bonnet and the disengaging of described fuselage main body, trigger described spring and become free state from described compressive state, be rotated in a second direction, to control described rotation axis, and then make the free end of described metal clips be converted into primary importance by the second place, and drive described the second connection metal sheet and move, so that described the second connection metal sheet and described the first connection metal sheet break away from, and then so that the first end of described mechanical switch and the disconnection of the second end.
5. circuit of realizing that the mobile phone users identification card is hot-swappable is characterized in that:
Described circuit comprises the power-supplying circuit and the mechanical switch that is arranged on portable terminal fuselage main body or the removable rear cover of described Subscriber Identity Module, described mechanical switch is connected with described power-supplying circuit, so that when described bonnet is separated the fuselage main body, described mechanical switch is positioned at the first state and triggers described power-supplying circuit and control described Subscriber Identity Module outage according to storage protocol and the normal power-off sequential of Subscriber Identity Module, and when described bonnet and fuselage main body fastened, described mechanical switch was positioned at the second state and triggers described power-supplying circuit and control described Subscriber Identity Module according to the normal electrifying timing sequence of Subscriber Identity Module and power on.
6. circuit according to claim 5 is characterized in that,
Described mechanical switch is arranged at the rear back side of described fuselage main body, described removable rear cover is fastened on the rear back side of described fuselage main body, described mechanical switch comprises first end and the second end, described power-supplying circuit comprises pull-up resistor and controller, one end of described pull-up resistor is used for input voltage signal, the other end of described pull-up resistor is connected with the first end of described mechanical switch, the second end of described mechanical switch is used for being connected with default low level interface, and the other end of described pull-up resistor is connected that with described controller described controller is exported interrupt signal;
Control first end and the disconnection of the second end of described mechanical switch when described bonnet is separated the fuselage main body and make described mechanical switch be positioned at the first state, described pull-up resistor is by the interrupt signal of described voltage signal to described controller output high level signal, described controller is controlled described Subscriber Identity Module outage according to described high level signal, control first end and the electric connection of the second end of described mechanical switch when described bonnet is fastened on the fuselage main body and make mechanical switch be positioned at the second state, so that described pull-up resistor by described mechanical switch ground connection to the interrupt signal of described controller output low level signal, described controller is controlled described Subscriber Identity Module according to described low level signal and is powered on.
7. circuit according to claim 6 is characterized in that,
Described mechanical switch comprises the switch pedestal of metal clips and insulated plastic gum forming, described mechanical switch is fixed in the rear back side of described fuselage main body by described switch pedestal, be provided with four metal pins on the described switch pedestal, be respectively the first metal pins, the second metal pins, the 3rd metal pins and the 4th metal pins, described four metal pins lay respectively at four positions of described switch pedestal;
Described the first metal pins and the second metal pins are positioned at an end position of switch pedestal and are electrically connected with the first end as mechanical switch, described the 3rd metal pins and the 4th metal pins are positioned at the other end position of switch pedestal and are electrically connected with the second end as mechanical switch, described metal clips comprises stiff end and free end, the stiff end of described metal clips is positioned at the other end position of described switch pedestal, the free end of described metal clips is controlled described the first metal pins when free state, the second metal pins and described the 3rd metal pins, the 4th metal pins does not connect, so that the first end of described mechanical switch and the second end disconnect, in the pressure-acting lower time of the free end of described metal clips when described bonnet and fuselage main body fasten, controlled described the first metal pins, the second metal pins and described the 3rd metal pins, the 4th metal pins connects, so that the first end of described mechanical switch and the second end are electrically connected.
8. circuit according to claim 7 is characterized in that,
Described switch pedestal also is provided with the first connection metal sheet and the second connection metal sheet, described the first metal pins and the second metal pins and described the first connection metal sheet are electrically connected with the first end as mechanical switch, and described the 3rd metal pins and the 4th metal pins and described the second connection metal sheet are electrically connected with the second end as mechanical switch;
The stiff end of described metal clips is fixed in the other end position of described switch pedestal by a rotation axis, the free end of described metal clips is in primary importance in free state, be in the second place under the pressure-acting of the free end of described metal clips when described bonnet and fuselage main body fastening, described the second connection metal sheet is fixed on the described rotation axis, described mechanical switch also comprises a spring, one end of described spring is fixed on the described switch pedestal, and the other end of described spring is fixed on the described rotation axis;
Be converted into the second place by primary importance under the pressure-acting of the free end of described metal clips at described bonnet and fuselage main body fastening the time, and described rotation axis is rotated in a first direction, described spring is in compressive state under the effect of described rotation axis, and described rotation axis drives described the second connection metal sheet and moves, so that described the second connection metal sheet contacts and is electrically connected with described the first connection metal sheet, and then so that the first end of described mechanical switch and the electric connection of the second end; When described bonnet and the disengaging of described fuselage main body, trigger described spring and become free state from described compressive state, be rotated in a second direction, to control described rotation axis, and then make the free end of described metal clips be converted into primary importance by the second place, and drive described the second connection metal sheet and move, so that described the second connection metal sheet and described the first connection metal sheet break away from, and then so that the first end of described mechanical switch and the disconnection of the second end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102735224A CN103369077A (en) | 2013-07-01 | 2013-07-01 | Mobile terminal and circuit for implementing hot plug of subscriber identity module card of mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102735224A CN103369077A (en) | 2013-07-01 | 2013-07-01 | Mobile terminal and circuit for implementing hot plug of subscriber identity module card of mobile terminal |
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| CN103369077A true CN103369077A (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102735224A Pending CN103369077A (en) | 2013-07-01 | 2013-07-01 | Mobile terminal and circuit for implementing hot plug of subscriber identity module card of mobile terminal |
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