TWI533557B - Switchable charging/discharging mobile modules and using method - Google Patents

Description

Action module capable of freely switching charge and discharge and using method thereof

The invention relates to a mobile module capable of freely switching between charging and discharging and a using method thereof, in particular to a mobile module capable of freely switching between discharge and charging modes and capable of transmitting power to each other, which is equivalent to wireless induction charging and discharging. It is convenient to switch the charging and discharging action module and its use method.

The conventional mobile phone charging system (for example, the mobile phone and its power transfer system and method of the Republic of China Invention No. 201237627) is basically provided with a discharge circuit, a switching circuit and a USB interface on a mobile phone, wherein the switching circuit includes an XOR. The chip and a Switch chip; when the enable end of the Switch chip is pulled to a high potential, and the input end of the Switch chip is pulled to a high potential, the USB interface turns on the discharge circuit, causing the battery of the mobile phone to discharge and pass through the USB interface One USB cable charges another mobile phone; when the enable terminal of the Switch chip is pulled to a high potential, and the input end of the Switch chip is pulled to a low potential, the USB interface is turned on to the charging circuit, so that the current is discharged by the other mobile phone. The USB cable charges the phone's battery.

However, the above charging process must use a USB cable connection. Once the USB cable is not used or the USB cable is damaged, it cannot be used. Moreover, the mobile phone must have a consistent socket to be connected to each other.

The general wireless charging mobile phone does not combine the two-way charging/discharging function, and its most The big missing is a mobile power supply with a wireless charging function or a wireless charging dock, which is used as a charging power source to improve the timeliness of the mobile phone.

In view of this, it is necessary to develop a technique that can solve the above disadvantages.

The object of the present invention is to provide a mobile module capable of freely switching between charging and discharging and a using method thereof, which has a mobile module capable of freely switching between discharge and charging modes, and a power transmission module capable of transmitting each other, and charging and discharging with wireless induction. Very convenient and so on. In particular, the problem to be solved by the present invention is that it is more troublesome to use a USB connection cable for a conventional mobile phone charging design. As for the general wireless charging mobile phone, the two-way charging/discharging function is not combined, and an action of wireless charging function is required. The power supply or the fixed structure of the wireless charging stand is quite inconvenient.

The technical means for solving the above problems is to provide a mobile module capable of freely switching between charging and discharging and a method for using the same. The device part comprises: at least one mobile module, a battery is provided, and each mobile module has one a back surface: at least one inductive coupling coil is disposed in the motion module and adjacent to the back surface, and the mobile module is configured to perform wireless power sensing on the back surface; at least one control unit is disposed in the motion module And switching between a discharge position and a charging position; at least one boosting circuit portion is disposed in the action module, and is switched between the discharge position and the charging position with the control portion, and The switch between the conductive state and the disconnected state is electrically connected to the battery and the inductive coupling coil for boosting and transmitting the power of the battery to the inductive coupling coil for external wireless inductive charging; At least one voltage stabilizing circuit unit is disposed in the action module, and is changed between the discharge position and the charging position, and then changes between the off state and the on state, and the conduction state is The battery and the inductive coupling coil are electrically connected to the inductive coupling coil to sense the incoming power and are transmitted to the battery for charging; and the control system has an application built in the control unit (Application) , referred to as APP), for operating the control unit to switch between the discharge position and the charging position.

The method of use includes the following steps: One. Preparation steps two. The application module respectively sets the two action modules as a charging and discharging step; three. Two action modules back-to-back wireless inductive charging step; four. Close the app to complete the charging step.

The above objects and advantages of the present invention will be readily understood from the following detailed description of the preferred embodiments illustrated herein.

The invention will be described in detail in the following examples in conjunction with the drawings:

10‧‧‧Action Module

101‧‧‧Back

11‧‧‧Battery

20‧‧‧Inductively coupled coil

30‧‧‧Control Department

30A‧‧‧Application

40‧‧‧Boost Circuit Division

50‧‧‧Regulator Circuit Department

60‧‧‧Power Switching Circuit Division

71‧‧‧Preparation steps

72‧‧‧Using the application to set the two action modules to one charge and one step

73‧‧‧Two mobile modules back-to-back wireless inductive charging step

74‧‧‧ Close the application to complete the charging step

81A‧‧‧First charging step

81B‧‧‧Second charging step

81C‧‧‧ Third charging step

81D‧‧‧Fourth charging step

81E‧‧‧Fixing charging step

82A‧‧‧First discharge step

82B‧‧‧Second discharge step

82C‧‧‧ Third discharge step

82D‧‧‧fourth discharge step

82E‧‧‧ fifth discharge step

P1‧‧‧ discharge position

P2‧‧‧Charging position

L1‧‧‧ first waveform

L2‧‧‧ second waveform

L3‧‧‧ third waveform

The first figure is a schematic view of the present invention

The second figure is a schematic diagram of the main structure of the present invention

The third A diagram is a schematic diagram of the charging of the high power to low power mobile module of the present invention.

The third B diagram is a schematic diagram of the charging of the low power to the high power mobile module of the present invention.

The fourth figure is a schematic view of another embodiment of the present invention.

The fifth figure is a voltage-capacity curve of a typical lithium battery of the present invention.

The sixth figure is a waveform diagram of the oscillating wafer control signal of the AC/DC conversion of the present invention.

Figure 7 is a flow chart of the method of use of the present invention

The eighth figure is a flow chart of the method for switching the action module of the present invention to the charging position

The ninth figure is a flow chart of the method for switching the action module of the present invention to a discharge position

Referring to the first and second figures, the present invention is a mobile module capable of freely switching between charging and discharging, and a method for using the same, the device portion comprising: at least one mobile module 10, a battery 11 is provided, and each action The module 10 has a back surface 101: at least one inductive coupling coil 20 is disposed in the mobile module 10 and adjacent to the back surface 101, and the mobile module 10 performs wireless power sensing on the back surface 101; at least one The control unit 30 is disposed in the mobile module 10 and can be used to switch between a discharge position P1 and a charging position P2 (refer to FIG. 3A); at least one boosting circuit unit 40 is disposed at In the action module 10, the control unit 30 is switched between the discharge position P1 and the charging position P2, and is switched between an on state and an off state, and the conduction state electrically connects the battery 11 And the inductive coupling coil 20 is configured to boost and transmit the power of the battery 11 to the inductive coupling coil 20 for external wireless inductive charging; at least one voltage stabilizing circuit unit 50 is disposed in the motion module 10, And with the control unit 30 at the discharge position P1 and the charging The position P2 is changed, and the state between the disconnection state and the conduction state is changed, and the conduction state electrically connects the battery 11 and the inductive coupling coil 20 The induction coupling coil 20 senses the incoming power voltage and transmits it to the battery 11 for charging. The control unit 30 has an application (Application, APP for short) 30A. The control unit 30 is operated to switch between the discharge position P1 and the charging position P2.

In practice, the action module 10 can be a mobile communication device, such as a smart phone (having an operation screen, a well-known device, not shown in the drawing, and a combination of the first). At least two of the action modules 10 are disposed, and the back sides 101 of any two of the action modules 10 can be back-to-back, and the two inductive coupling coils 20 are coupled to each other to transmit power.

The inductive coupling coil 20 can be a non-contact type transformer for coupling the alternating current power between the two mobile modules 10 from the primary coil to the secondary coil in a non-contact manner to complete wireless inductive charging.

The control unit 30 can be an electronic switch (as shown in the third A and third B diagrams, which is a reference to the switching operation principle of the electronic switch, not the control unit 30 entity, which is first and foremost), and can be in the discharge position. P1 is switched between the charging position P2.

The application 30A can display a control switching screen on the screen of the mobile module 10 for the user to operate and switch the control unit 30 between the discharge position P1 and the charging position P2.

The boosting circuit unit 40 can be a boost integrated chip (for example, the "power supply device and its discharging method" of the Chinese Patent No. I452749, wherein the boosting unit is a column, as long as the boosting action can be achieved, The component composition is not limited, and the current voltage of the battery 11 can be used (in principle, as soon as the charging is completed, the battery will start to discharge, and the voltage starts to fall below the standard output. The voltage is increased to the standard output voltage (this case is set to 4.05 volts).

The voltage stabilizing circuit 50 can be a voltage-stabilized integrated chip (for example, the "power switching circuit and the electronic device using the power switching circuit" of the Republic of China invention patent No. I446686, as long as the voltage regulation can be achieved, the component composition is not limited. The supplied power can be charged and then the battery 11 is charged.

Referring to the fourth figure, the present invention further includes: a set of power switching circuit portions 60, one of which is electrically connected between the control portion 30 and the boosting circuit 40; wherein the other is electrically coupled to the control The portion 30 is between the voltage stabilizing circuit portion 50.

Each of the power switching circuit sections 60 can include an oscillating wafer, a metal-oxide-semiconductor field-effect transistor (MOSFET), and a rectifying diode for use as a DC power source. AC power conversion.

Referring to the sixth figure, it is a schematic diagram of the oscillating wafer control signal of the present invention. The method of converting the DC power into the AC power is to use the oscillating chip to output a continuous square wave of a specific frequency, and generate a continuous oscillating trigger signal (such as the first waveform curve L1 shown in FIG. 6) to control the MOSFET ON-OFF alternately switching on, The input DC power is converted into a square wave form to form an AC voltage output. The output gives a high potential when the trigger voltage drops to 1/3Vcc. The output gives a low potential when the threshold voltage (such as the third waveform L3 shown in Figure 6) rises to 2/3 Vcc. The output voltage (such as the second waveform L2 shown in Figure 6) is determined by the charging period of the oscillating wafer T1 and the T2 discharge period, where: T1 = 0.393R ₁ C ₁ ; T2 = 0.393R ₂ C ₂ where: T ₁ is the charging cycle.

R ₁ is the sum of the resistance values through which the current flows when the oscillating wafer is charged.

C ₁ is the sum of the capacitance values through which the current flows when the oscillating wafer is charged.

T ₂ is the discharge period.

R ₂ is the sum of the resistance values through which the current flows when the oscillating wafer is discharged.

C ₂ is the sum of the capacitance values through which the current flows when the oscillating wafer is discharged.

f=1/(T1+T2).

Where f is the oscillation frequency.

Referring to the seventh figure, the method of using the present invention includes the following steps: 1. Preparing step 71: preparing two action modules 10, two inductive coupling coils 20, two control units 30, two boosting circuit units 40, two voltage stabilizing circuit units 50, and two sets of power switching circuit units 60 in advance; The action module 10 is provided with a battery 11 and each of the action modules 10 has a back surface 101; each of the inductive coupling coils 20 is located in the corresponding action module 10 and adjacent to the back surface 101; Each control unit 30 is respectively located in the corresponding action module 10, and each control unit 30 can be used to switch between a discharge position P1 and a charging position P2 (as shown in FIG. 3A). Each of the booster circuit sections 40 is located in the corresponding action module 10, and when the control section 30 is correspondingly switched to the discharge position P1, the booster circuit section 40 is in the path and the remaining time is An open circuit, electrically connecting the battery 11 and the inductive coupling coil 20 for connecting The power of the battery 11 is boosted and transmitted to the inductive coupling coil 20 for external wireless inductive charging; each of the voltage stabilizing circuit units 50 is located in the corresponding action module 10, respectively, when corresponding to the control The portion 30 is switched to the charging position P2, and the voltage stabilizing circuit portion 50 is in the path and is open for the rest of the time. The battery 11 and the inductive coupling coil 20 are electrically connected to the inductive coupling coil 20 for sensing. The power is regulated and transmitted to the battery 11 for charging; one of the set of power switching circuit units 60 is electrically coupled between the control unit 30 and the boosting circuit 40; Connected between the control unit 30 and the voltage stabilizing circuit unit 50; each of the power switching circuit units 60 may include an oscillating wafer, a metal-oxide-semiconductor field-effect transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, Referred to as MOSFET) and a rectifying diode, used as a DC power supply and AC power conversion; The application unit is configured to perform a charging and discharging step 72: the control unit 30 has an application (Application, APP for short) 30A for operating the control unit 30 at the discharge position P1. Switching between the charging positions P2; switching one of the control units 30 of the action module 10 to the discharging position P1, and switching the control unit 30 of the other of the action modules 10 to the Charging position P2; three. The two-action module back-to-back wireless inductive charging step 73: the two mobile modules 10 are relatively wirelessly sensed by the back surface 101, then: [1] the battery 11 of the action module 10 of the discharge position P1 is discharged, The boosting circuit unit 40 performs a boosting process on the direct current, and the inductive coupling coil 20 senses the discharged power; [2] the inductive coupling coil 20 of the action module 10 of the charging position P2 is inductively transmitted. In the power input, the voltage stabilizing circuit unit 50 performs voltage stabilization processing on the DC power, and then charges the battery 11 of the mobile module 10.

four. Close the application to complete the charging step 74: Close the application 30A, complete the charging, and then end.

That is, [a] charging mode: Referring to the eighth figure, the operation flow of the action module 10 in which the control unit 30 switches to the charging position P2 is as follows: First charging step 81A: charging the control module by the control unit end.

The second charging step 81B: the inductive coupling coil senses the incoming power.

The third charging step 81C: the power switching circuit unit performs AC to DC.

The fourth charging step 81D: the voltage stabilizing circuit unit performs voltage stabilization processing on the direct current power.

The fifth charging step 81E: charging the battery of the charging end mobile module.

[b] Discharge Mode: Referring to the ninth diagram, the operation flow of the action module 10 in which the control unit 30 switches to the discharge position P1 is as follows: First discharge step 82A: The control unit switches the action module to the discharge end.

The second discharging step 82B: discharging the battery of the discharge end action module.

Third discharging step 82C: The boosting circuit unit performs boost processing on the direct current.

The fourth discharging step 82D: the power switching circuit unit performs DC-to-AC communication.

The fifth discharging step 82E: the inductive coupling coil senses the discharge of electric power.

Referring to the fourth figure, for example, when the two mobile modules 10 perform wireless power charging, the voltage outputted by the battery 11 of the mobile module 10 set to the discharging end is 4.7V, and the voltage is boosted. The circuit portion 40 boosts the voltage and supplies it to the inductive coupling coil 20, at which time the discharge The voltage of the inductive coupling coil 20 is 15.6V, and the voltage induced by the inductive coupling coil 20 at the charging end is 8.1V, and after being regulated by the voltage stabilizing circuit unit 50, the charging end is provided at 4.5V. The battery 11 of the mobile module 10 is charged. This circuit operates at 2KHz.

What is specifically noted here is that a typical lithium battery generally operates within a certain limited range, about 20% SOC to 80% SOC, where SOC is the charge state indicating the percentage of battery storage. These SOC limits will vary depending on the ageing of the battery and the operating environment. Due to the SOC limit, the battery will not be used at full capacity. As shown in the fifth figure, it is a voltage-capacitance (electricity) graph of a typical lithium battery, operating at 20% SOC to 80% SOC to limit the available SOC to within 60%. The voltage-charge of the lithium battery is not linear. When the battery is fully charged, the voltage is about 4.1~4.2V. When the capacity of the battery is 50%, the voltage is about 3.6~3.7V. When the battery is used close to At 0%, the voltage is about 3.1~3.2V.

Taking the voltage-electricity graph of a typical lithium battery in the fifth figure as an example, the focus of the present invention is to assume that two mobile modules 10 are carried (assuming that one of the stored powers is 55% SOC, and the other one is 20% SOC) go out, and when you need to download important documents temporarily, in principle, you will choose the mobile module 10 with 55% SOC. (Refer to the mobile module 10 on the left side of Figure 3B because of the high storage capacity. Downloading important files, but the downloading time is so long that the power is useful, and since the important files cannot be interrupted, the application module 30A of the control unit 30 can download the action files of the important files. Group 10 (mandatory) switches to charging position P2, and another mobile module 10 that stores 20% SOC (such as the mobile module 10 on the right side of Figure B) has the same low power storage. The application 30A of the unit 30 is switched to the discharge position P1, and the two action modules 10 are opposed to the back surface 101. Then, the inductive coupling coil 20 is passed through, so that the mobile module 10 with the stored power of 20% SOC can be made. The power of the battery 11 is charged to the download important The battery 11 of the action module 10 of the document is supplied as an emergency power source.

Of course, the amount of electricity stored depends on the remaining power of the actual battery 11. The scope of the case is not discussed in this case. The focus of this case is that when there are no sources of recharge in the field, as long as the two actions of the present invention are carried The module 10 can be forced to switch to a higher battery even if the battery is lower.

The advantages and functions of the present invention are as follows:

[1] The action module is free to switch between discharge and charge modes. The invention provides an application program in the control unit, which can display a control switching screen on the screen of the action module, and is convenient for the user to freely switch to the discharge mode or the charging mode. Therefore, the action module can freely switch between discharge and charge modes.

[2] Action modules in which power can be transmitted to each other. In particular, low battery power can be forced to a high-power mobile module. The invention can force the power of the low-power action module to the high-power action module through free (forced) switching to meet the use requirements of the action module (for example, downloading important files, not because of insufficient power And interrupted). Therefore, the low battery can be forced to charge to the high-power mobile module.

[3] Wireless inductive charging is quite convenient. The invention is provided with an inductive coupling coil inside the back of the action module. When charging, as long as the two action modules are back to back, the inductive coupling coil inside the back surface can be used for wireless inductive charging, and no need to use any The physical charging line is quite convenient.

The present invention has been described in detail with reference to the preferred embodiments of the present invention, without departing from the spirit and scope of the invention.

10‧‧‧Action Module

101‧‧‧Back

11‧‧‧Battery

20‧‧‧Inductively coupled coil

30‧‧‧Control Department

30A‧‧‧Application

40‧‧‧Boost Circuit Division

50‧‧‧Regulator Circuit Department

P1‧‧‧ discharge position

P2‧‧‧Charging position

Claims (7)

An action module capable of freely switching charge and discharge includes: at least one action module, a battery is provided, and each action module has a back surface: at least one inductive coupling coil is disposed in the action module And adjacent to the back surface, the mobile module is configured to perform wireless power sensing on the back surface; at least one control unit is disposed in the action module and can be used to switch between a discharge position and a charging position At least one boosting circuit unit is disposed in the action module, and is switched between the discharge position and the charging position with the control unit, and then changes between the conductive state and the disconnected state, and the conductive state Electrically connecting the battery and the inductive coupling coil for boosting and transmitting power of the battery to the inductive coupling coil for external wireless inductive charging; at least one voltage stabilizing circuit portion is disposed in the motion module And the control unit changes between the discharge position and the charging position, and then changes between the disconnected state and the conductive state, and the conductive state electrically connects the battery and the inductive coupling coil for The inductively coupled coil senses the incoming power voltage regulation and transmits to the battery for charging; one set of power switching circuit parts, one of which is electrically connected between the control part and the boosting circuit; The power switching circuit portion is electrically connected to the control portion and the voltage stabilizing circuit portion; the power switching circuit portion includes an oscillating wafer, a metal oxide semiconductor field effect transistor, and a rectifying diode for use as a direct current The alternating current conversion is characterized in that the control unit has an application program for operating the control unit to switch between the discharge position and the charging position. The mobile module is a mobile communication device, which is a smart mobile phone and has an operation screen; the action module is at least set. Two, the back of the two action modules can be back-to-back, and the two inductive coupling coils can transmit power to each other. The action module of claim 2, wherein the control unit is an electronic switch; the application is configured to display a control switch screen on the screen of the action module. The control unit switches between the discharge position and the charging position for operation. The action module of claim 1, wherein the inductively coupled coil is a non-contact type transformer having a primary coil and a primary coil; the inductive coupling coil is used to The AC power between the two action modules is wirelessly inductively charged between the primary coil coupling and the secondary coil in a non-contact manner. The action module capable of freely switching between charging and discharging according to the first aspect of the patent application, wherein the voltage stabilizing circuit is a voltage-stabilized integrated chip, and the power supplied to the power is regulated, and then the battery is supplied. Charging. A method for using a mobile module capable of freely switching between charging and discharging includes: Preparing step: preparing two action modules, two inductive coupling coils, two control sections, two boosting circuit sections, two voltage stabilizing circuit sections, and two sets of power switching circuit sections in advance; wherein: each mobile module is provided with a battery And each action module has a back; Each of the inductively coupled coils is located in the corresponding action module and adjacent to the back surface; each control unit is located in the corresponding action module, and each control unit can be used in one Switching between the discharge position and a charging position; each of the boosting circuit portions is respectively located in the corresponding action module, and when the corresponding control portion is switched to the discharge position, the boosting circuit portion is in the path And the remaining time is open circuit, the battery is electrically connected to the inductive coupling coil, and the power of the battery is boosted and transmitted to the inductive coupling coil for external wireless inductive charging; The control circuit is respectively located in the corresponding action module, and when the control unit is switched to the charging position, the voltage stabilizing circuit portion is in a path and is open for the rest of the time, and electrically connecting the battery and the inductive coupling coil during the path. The power for sensing the incoming inductance of the inductive coupling coil is regulated and transmitted to the battery for charging; one of the group of power switching circuit portions is electrically connected to the control portion and the boosting The other is electrically connected between the control portion and the voltage stabilizing circuit portion; each of the power switching circuit portions includes an oscillating wafer, a metal oxide semiconductor field effect transistor, and a rectification Diode, used as DC and AC conversion; The application module respectively sets the two action modules as a charging and discharging step: the control unit has an application built therein for operating the control unit to switch between the discharging position and the charging position; One of the control modules of the action module switches to the discharge position, and the control portion of the other of the action modules is switched to the charging position ;three. The two-action module back-to-back wireless inductive charging step: the two mobile modules are relatively wirelessly sensed by the back side, then: [1] the battery of the action module of the discharge position is discharged, and the boosting circuit is connected to the direct current Performing a boosting process, the inductively coupled coil senses the release of power; [2] the inductively coupled coil of the action module of the charging position senses the incoming power, and the voltage stabilizing circuit unit performs a voltage stabilization process on the direct current, The battery of the group is charged; Close the app to complete the charging step: close the app, complete charging, and then end. The method for using the mobile module capable of freely switching between charging and discharging according to the sixth aspect of the patent application, wherein: the mobile module is a mobile communication device, which is a smart phone, and has an operation screen; The group is provided with at least two, and the back sides of the two action modules can be back-to-back, and the two inductive coupling coils can transmit power to each other; the control part is an electronic switch.