CN215817561U - Wireless charging module, wireless charging assembly and wireless charger - Google Patents
Wireless charging module, wireless charging assembly and wireless charger Download PDFInfo
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Abstract
The utility model discloses a wireless charging module, a wireless charging assembly and a wireless charger, wherein the wireless charging module comprises a body and a wireless charging unit; the wireless charging unit is arranged in the body and comprises a main control module and a charging module, the main control module is electrically connected with the charging module, the charging module is used for wirelessly charging the power receiving equipment, and the main control module is used for switching a magnetic attraction charging mode and a non-magnetic attraction charging mode so as to enable the charging module to charge the power receiving equipment in a magnetic attraction charging mode or a non-magnetic attraction charging mode; the electromagnetic attraction power receiving equipment is compatible with the electromagnetic attraction power receiving equipment and the non-electromagnetic attraction power receiving equipment.
Description
Technical Field
The utility model relates to the technical field of wireless charging, in particular to a wireless charging module, a wireless charging assembly and a wireless charger.
Background
With the rapid development of scientific technology, wireless charging technology has entered into the lives of people. Some electronic devices, such as mobile phones, can be charged by using a wireless charger, and the mobile phone is directly placed on the wireless charger when being charged.
The relevant technique of domestic wireless charger at present, it charges and the non-magnetism charger charges to equipment is inhaled to the magnetism to have magnetism to inhale the charger to the magnetism to inhale equipment to the non-magnetism, but can't accomplish a wireless charger compatible to magnetism simultaneously inhale equipment and non-magnetism and inhale equipment, when using magnetism to inhale the charger and charge for non-magnetism to inhale the powered device, can appear that charging efficiency hangs down to generate heat and lead to the charge time long, charge and appear disconnected charging, the phenomenon that can't charge even, when using non-magnetism to inhale the charger and inhale magnetism or non-magnetism to inhale the powered device and charge, can lead to the low problem that leads to the charge time long that generates heat of charging efficiency because the counterpoint is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a wireless charging module, a wireless charging assembly and a wireless charger which are compatible with magnetic attraction power receiving equipment and non-magnetic attraction power receiving equipment.
The utility model discloses a wireless charging module, which comprises a body and a wireless charging unit, wherein the body is provided with a charging port; the wireless charging unit is arranged in the body and comprises a main control module and a charging module, the main control module is electrically connected with the charging module, the charging module is used for wirelessly charging the powered device, and the main control module is used for switching between a magnetic suction charging mode and a non-magnetic suction charging mode so as to enable the charging module to charge the powered device in the magnetic suction charging mode or the non-magnetic suction charging mode.
Optionally, the wireless charging unit further includes a detection module, the detection module is electrically connected to the main control module, the detection module is configured to detect a trigger signal and generate a switching signal, and the main control module performs switching between a magnetic attraction charging mode and a non-magnetic attraction charging mode according to the switching signal.
Optionally, the wireless charging module further includes an interface module and a voltage stabilizing module, the interface module is used for connecting an external power supply and supplying power to the wireless charging module, the voltage stabilizing module is electrically connected to the interface module, the detection module and the main control module, and the voltage stabilizing module is used for converting an input voltage and supplying power to the detection module and the main control module.
Optionally, the detection module includes an input end, an inductive switch and an output end, the input end is electrically connected to the voltage stabilizing module, the output end is electrically connected to the main control module, the trigger signal turns on the inductive switch, and the switching signal enters the output end from the input end and is output to the main control module from the output end.
Optionally, the detection module further comprises an inductor, a first resistor, a first capacitor, a second resistor and a second capacitor, the second resistor is connected with the inductive switch in series, one end of the first resistor is connected with the input end, the other end of the first resistor is connected with the first capacitor, the other end of the first capacitor is connected with the second resistor, one end of the second capacitor is connected with the input end, the other end of the second capacitor is connected with the inductor, and the other end of the inductor is connected with the inductive switch.
Optionally, the sensor is a contact sensor or a non-contact sensor.
Optionally, the wireless charging unit further includes an LED lamp module, the LED lamp module is electrically connected to the main control module, the main control module switches between the magnetic attraction charging mode and the non-magnetic attraction charging mode according to a switching signal, and controls the LED lamp module to display different colors of lights according to the corresponding charging modes.
The utility model also discloses a wireless charging assembly, which comprises a triggering unit and the wireless charging module, wherein the triggering unit is detachably connected with the wireless charging module, the detection module detects the existence of the triggering unit and generates a corresponding switching signal, and the main control module switches a magnetic attraction charging mode and a non-magnetic attraction charging mode according to the switching signal.
Optionally, the trigger unit is a magnet.
The utility model also discloses a wireless charger, which comprises a charging head and the wireless charging assembly; the charging head is connected with the wireless charging module.
According to the utility model, two sets of charging mode software programs are arranged on the main control module in the body, namely a magnetic attraction charging mode and a non-magnetic attraction charging mode respectively, and the main control module can be switched between the two charging modes randomly according to the use environment, so that the wireless charging module is compatible with magnetic attraction charging and non-magnetic attraction charging simultaneously, and is compatible with non-magnetic attraction power receiving equipment and magnetic attraction power receiving equipment simultaneously, and high-efficiency and stable charging can be carried out.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. It is obvious that the drawings in the following description are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic block diagram of a wireless charging module according to an embodiment of the utility model;
FIG. 2 is a schematic block diagram of the wireless charging module concept of an embodiment of the present invention;
FIG. 3 is a circuit schematic of an interface module according to an embodiment of the utility model;
FIG. 4 is a circuit diagram of a voltage regulator module according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an input voltage detection circuit according to an embodiment of the utility model;
FIG. 6 is a schematic diagram of a temperature sensing circuit according to an embodiment of the utility model;
FIG. 7 is a schematic circuit diagram of a detection module according to an embodiment of the utility model;
FIG. 8 is a schematic diagram of EPPQI authentication circuitry according to an embodiment of the present invention;
FIG. 9 is a schematic circuit diagram of an LED module according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a PD protocol identification circuit of an embodiment of the present invention;
FIG. 11 is a schematic diagram of a main control chip connection voltage circuit, a current decoding circuit and a QC protocol identification circuit according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a wireless charging assembly of another embodiment of the present invention;
fig. 13 is a schematic diagram of a wireless charger according to another embodiment of the utility model.
100, a wireless charging module; 110. a body; 120. a wireless charging unit; 121. a main control module; 122. a charging module; 123. a detection module; 124. an interface module; 125. a voltage stabilization module; 130. a trigger unit; 131. a magnet module; VMOD, voltage decoding circuit; an IMOD, current decoding circuit; QC, QC agreement identification circuit; PD, PD agreement identification circuit; 11. a wireless charging assembly; 12. a charging head; 10. a wireless charger;
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present invention may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model will be further elucidated with reference to the drawings and alternative embodiments.
As shown in fig. 1, an embodiment of the present invention discloses a wireless charging module, including a body 110 and a wireless charging unit 120, where the wireless charging unit 120 is disposed in the body 110, the wireless charging unit 120 includes a main control module 121 and a charging module 122, the main control module 121 is electrically connected to the charging module 122, the charging module 122 is configured to wirelessly charge a powered device, and the main control module 121 is configured to switch between a magnetic attraction charging mode and a non-magnetic attraction charging mode, so that the charging module 122 charges the powered device in a magnetic attraction charging mode or a non-magnetic attraction charging mode.
According to the utility model, two sets of charging mode software programs are arranged on the main control module in the body, namely a magnetic attraction charging mode and a non-magnetic attraction charging mode respectively, and the main control module can be switched between the two charging modes randomly according to the use environment, so that the wireless charging module is compatible with magnetic attraction charging and non-magnetic attraction charging simultaneously, and is compatible with non-magnetic attraction power receiving equipment and magnetic attraction power receiving equipment simultaneously, and high-efficiency and stable charging can be carried out.
The wireless charging means that the wireless charging module and the powered device can be coupled in an electromagnetic induction or magnetic resonance mode to realize energy transmission, and the charging component can charge the component to be charged; the powered device may be a cell phone, a tablet computer, a laptop, a camera, a wearable device, or the like. The present embodiment is described by taking the powered device as a mobile phone,
in this embodiment, the main control module 121 is a main control chip, two software programs of a magnetic attraction charging mode and a non-magnetic attraction charging mode are built in the main control chip, the charging module 122 can be a charging coil, and is triggered by induction or mechanical type, such as light sensation, magnetic sensation, manual switch-on or pressure sensing, and the main control chip in the circuit sets different programs to switch charging modes for the magnetic attraction power receiving device and the non-magnetic attraction power receiving device through a dedicated circuit.
It should be noted that, the wireless charging module in this embodiment, when switching the magnetic attraction charging mode, it is necessary to correspond to the charging surface adaptive magnet on the wireless charging module, so as to align the corresponding receiving coil on the power receiving device accurately, when switching to the non-magnetic attraction power receiving device, it is necessary to detach the magnet on the charging surface, the charging coil uses the standard a11a coil, processing through software enables the wireless charging module to be compatible with the magnetic attraction charging function and pass through the QI standard authentication simultaneously, the authentication requirement of the magnetic attraction device is satisfied through the switching mode of the two versions of different programs, and the device compatible with the QI standard is charged wirelessly.
Further, as shown in fig. 2, the wireless charging unit 120 further includes a detection module 123, the detection module 123 is electrically connected to the main control module 121, the detection module 123 is configured to detect a trigger signal and generate a switching signal, and the main control module 121 switches between a magnetic attraction charging mode and a non-magnetic attraction charging mode according to the switching signal.
The detection module 123 is a switch detection circuit, and specifically may be fingerprint identification, face identification, or pressure sensing identification, after identifying a matching trigger signal, the switch detection circuit path generates a switching signal to the main control module 121, and the main control chip of the main control module 121 receives the switching signal and switches the magnetic attraction charging mode and the non-magnetic attraction charging mode.
In this embodiment, the installation and the dismantlement of cooperation magnet, correspond to switch magnetism and inhale charging mode and non-magnetism, through the existence that detects magnet, give the signal and carry out the procedure to main control chip and switch, it is concrete, install on wireless charging module when magnet, detection module 123 senses the existence of magnet through magnetism sense or pressure sensing, switch detection circuitry switches on, signals gives main control module, main control chip passes through software control and judges, need switch over to magnetism and inhale the mode and charge this moment, do not install on wireless charging module when magnet, detection module 123 does not sense the existence of magnet, switch detection circuitry opens circuit, do not send signals and give main control module, main control chip passes through software control and judges, need switch to inhale the mode and charge for non-magnetism this moment.
Moreover, in other embodiments, the detection module 123 does not receive the signal sent by the magnet, and meanwhile, sends a signal to the main control chip to control the switching to the non-magnetic attraction charging mode.
Furthermore, the wireless charging module further includes an interface module 124 and a voltage stabilizing module 125, the interface module 124 is used for connecting an external power supply and supplying power to the wireless charging module, the voltage stabilizing module 125 is electrically connected to the interface module 124, the detection module 123 and the main control module 121, and the voltage stabilizing module 125 is used for converting an input voltage and then supplying power to the detection module 123 and the main control module 121.
As shown in fig. 3, the interface module 124 is an interface circuit, which is mainly used to connect the wireless charging module for wireless charging and power supply, and is externally connected to 220V high-voltage dc power, specifically, the interface circuit can be selected from TYPE-C and MICRO connection to be adapted to two input interfaces.
As shown in fig. 4, the voltage regulation module 125 is an LDO power supply circuit, and the LDO power supply circuit outputs a 5V dc voltage after inputting a 220V high voltage dc into U1, and converts the voltage into a voltage required by the system after extracting power from a wireless charging module or other electric devices, and supplies the voltage to the switch detection circuit and the main control chip circuit.
As shown in fig. 5, 6 and 11, the program is switched by detecting the signal of the switch detection circuit, and the wireless charging unit further includes an input voltage detection circuit and a current/voltage decoding circuit, which detects the voltage of the input VBUS to perform voltage detection, performs overvoltage/undervoltage protection, and performs current/voltage decoding by the output current/voltage detection circuit to communicate with the receiving end, thereby implementing the overall charging function of the product.
Further, as shown in fig. 7, the detection module 123 includes an input end, an inductive switch K1, and an output end, the input end is electrically connected to the voltage stabilizing module 125, the output end is electrically connected to the main control module 121, the trigger signal turns on the inductive switch K1, and the switching signal enters the output end from the input end and is output to the main control module 121 from the output end; high level signal makes inductive switch K1's opening, and low level signal makes inductive switch K1 closed, and is concrete, installs back on wireless charging module when magnet, sends high level signal and makes inductive switch K1 open to send switching signal and give main control chip, control switch is magnetism and inhales the mode of charging, dismantles the back when magnet, and low level signal makes inductive switch K1 closed, and no signal sends and gives main control chip, switches to the mode of magnetism of non-magnetism.
Furthermore, the detection module further includes an inductor K, a first resistor R1, a first capacitor C1, a second resistor R2 and a second capacitor C2, the second resistor R2 is connected in series with the inductive switch K1, one end of the first resistor R1 is connected to the input end, the other end of the first resistor R1 is connected to the input end, the other end of the first capacitor C1 is connected to the second resistor R2, one end of the second capacitor R2 is connected to the input end, the other end of the second capacitor R2 is connected to the inductor K, and the other end of the inductor K is connected to the inductive switch K1. The input end of the switch detection circuit is connected with the LDO power supply circuit, the inductor K can be a light sensor, a touch sensor, a magnetic sensor or a pressure sensor, one end of the inductor K is connected with the inductive switch, the other end of the inductor K is grounded, and the output end of the switch detection circuit is connected with the main control chip; the first capacitor C1 is used to supply power to the first resistor R1, and the second capacitor C2 is used to supply power to the inductor K.
Furthermore, the sensor is a contact sensor or a non-contact sensor, and the sensor K is a contact sensor or a non-contact sensor through a sensing switch K1 and a sensor K arranged on the switch detection circuit, when an external trigger signal (light sensation, touch sensation, magnetic sensation, pressure and the like) comes, the sensing switch K1 is turned on, a 5V high level is provided to the main control chip through H _ V1, and the main control chip switches the charging mode to enter the magnetic charging mode after receiving the switching signal; when no external triggering signal (light sensation, touch sensation, magnetic sensation, pressure and the like) comes, the K1 is closed, the H _ V1 is pulled down to the ground, the main control chip does not receive the signal, and the charging mode is switched to enter the non-magnetic attraction charging mode. In this embodiment, the sensor is a contact sensor, specifically a pressure sensor, and receives an external pressure trigger signal to control the opening of the inductive switch K1.
In addition, the charging module conforms to QI standard certification. When the charging module is switched to a non-magnetic absorption mode, because the magnet does not exist on the charging surface, the magnetic absorption effect cannot be realized within 70mm of the central diameter of the coil in the QI standard, namely the charging module conforms to the QI standard authentication, and the power receiving equipment of which the wireless charging module conforms to the QI standard performs wireless charging, the type of the adaptable wireless charging power receiving equipment is greatly improved, and the wireless charging power receiving equipment is convenient for operators to use; specifically, as shown in fig. 8, the standard authentication module is an EPPQI authentication circuit, and is configured to detect whether there is a QI protocol device around the standard authentication module, or detect whether there is a signal transmitted by a wireless QI charging protocol device, and after receiving the signal that detects the QI protocol device, control the coil unit to transmit a wireless protocol signal to perform handshake connection, and after the connection is successful, control the charging module to perform discharging.
As shown in fig. 9, the wireless charging unit 120 further includes an LED lamp module, the LED lamp module is electrically connected to the main control module 121, the main control module 121 switches between a magnetic attraction charging mode and a non-magnetic attraction charging mode according to a switching signal, and controls the LED lamp module to display different colors according to the corresponding charging modes. Specifically, the LED lamp module includes two independent light emitting diodes D2 and D3, which are respectively connected in series with the third resistor R3 and the fourth resistor R4, and then respectively connected to the main control chip, and in two charging modes, the main control chip is respectively and correspondingly switched to the LED1 with a 5V0 signal, and the main control chip is switched to the LED2 with a 5V1 signal, so as to display two different colors, thereby facilitating identification of the charging mode in which the wireless charging module is located.
When the wireless charger is powered on, the interface is powered by an external power supply, the input voltage VBUS is subjected to 5V voltage conversion by the LDO power supply circuit, and the input voltage is reduced to a required voltage value to supply power to the inductor K1 of the main control chip and other signal circuits such as an LED indicator lamp, a decoding signal circuit and an online upgrading circuit;
as shown in fig. 10 and 11, the QC protocol recognition circuit and the PD protocol recognition circuit further included in the main control circuit communicate with the input adapter through the loading voltage, the input voltage adapter is adjusted to adjust the output voltage by reading different D +/D-voltage combination values and combining CC signals, and the fast charge output function is realized by the communication between the D +/D-and CC signals; when the charging face end is placed into the powered device, the wireless charging module starts to work, the detection control circuit decodes current and voltage, communicates with the receiving end and starts charging;
when the magnet is connected to a product, the sensor K1 receives a signal sent by the magnet and sends a signal to the main control chip, the main control chip controls and judges through software, at the moment, the magnetic attraction charging mode needs to be switched to charge, and the LED lamp is controlled to display a specific color in the magnetic attraction charging mode; after the magnet module is disassembled, the sensor K1 does not receive a signal given by the magnet module, the main control chip judges through software control, and at the moment, the LED lamp is required to be switched to a non-magnetic attraction charging mode for charging and is controlled to display a specific color in the non-magnetic attraction charging mode.
As shown in fig. 12, as another embodiment of the present invention, a wireless charging assembly 11 is disclosed, which includes a triggering unit 130, the wireless charging module 100 of the above-mentioned embodiment, the triggering unit 130 is detachably connected to the wireless charging module 100, the detecting module 123 detects whether the triggering unit 130 exists and generates a corresponding switching signal, and the main control module 121 switches between a magnetic attraction charging mode and a non-magnetic attraction charging mode according to the switching signal.
The triggering unit 130 may be any module, for example, an electric shock is disposed on the wireless charger, the triggering unit is a press block which is in contact with the electric shock in a matching manner, and generates a triggering signal through contact sensing or pressure sensing, or a fingerprint recognition or light sensor is disposed on the wireless charging module 100, and a finger or other component approaches to generate a triggering signal, or a mechanical switch, a button, or the like;
specifically, the magnet is installed on the wireless charging module 100, and then generates a trigger signal to the detection module 123 through another trigger unit, generates a switching signal to the main control module 121, and controls to switch to the magnetic charging mode; when the magnet is taken down, the control is correspondingly switched to a non-magnetic attraction charging mode.
In order to enable the installation of the magnet and the generation of the trigger signal to be performed simultaneously, the trigger unit 130 is a magnet, and the presence of the magnet is directly detected by the detection module, so that the trigger signal can be generated conveniently and quickly; the magnet may be mounted to generate a trigger signal by light sensation, tactile sensation, magnetic sensation, pressure, or the like.
As shown in fig. 13, as another embodiment of the present invention, a wireless charger 10 is disclosed, which includes a charging head 12 and the wireless charging assembly 11 of the above embodiment, wherein the charging head 12 is connected to the wireless charging module 100.
Specifically, still include charging cable, charging cable and charging head 12 and wireless charging module 100 are connected, and the external power supply of charging head 12 inserts wireless charging module 100 with 220V's high-voltage direct current.
The foregoing is a more detailed description of the utility model in connection with specific alternative embodiments, and the practice of the utility model should not be construed as limited to those descriptions. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (10)
1. A wireless module that charges, its characterized in that includes:
a body;
the wireless charging unit is arranged in the body and comprises a main control module and a charging module, the main control module is electrically connected with the charging module, the charging module is used for wirelessly charging the powered device, and the main control module is used for switching between a magnetic suction charging mode and a non-magnetic suction charging mode so as to enable the charging module to charge the powered device in the magnetic suction charging mode or the non-magnetic suction charging mode.
2. The wireless charging module of claim 1, wherein the wireless charging unit further comprises a detection module electrically connected to the main control module, the detection module is configured to detect a trigger signal and generate a switching signal, and the main control module switches between a magnetic charging mode and a non-magnetic charging mode according to the switching signal.
3. The wireless charging module of claim 2, further comprising an interface module and a voltage stabilizing module, wherein the interface module is used for externally connecting a power supply and supplying power to the wireless charging module, and the voltage stabilizing module is electrically connected to the interface module, the detection module and the main control module; the voltage stabilizing module is used for converting input voltage and supplying power to the detection module and the main control module.
4. The wireless charging module of claim 3, wherein the detection module comprises an input terminal, an inductive switch and an output terminal, the input terminal is electrically connected to the voltage stabilizing module, the output terminal is electrically connected to the main control module, the trigger signal turns on the inductive switch, and the switching signal enters the output terminal from the input terminal and is output to the main control module from the output terminal.
5. The wireless charging module of claim 4, wherein the detection module further comprises an inductor, a first resistor, a first capacitor, a second resistor, and a second capacitor, the second resistor is connected in series with the inductive switch, one end of the first resistor is connected to the input terminal, the other end of the first resistor is connected to the first capacitor, the other end of the first capacitor is connected to the second resistor, one end of the second capacitor is connected to the input terminal, the other end of the second capacitor is connected to the inductor, and the other end of the inductor is connected to the inductive switch.
6. The wireless charging module of claim 2, wherein the sensor is a contact sensor or a non-contact sensor.
7. The wireless charging module of claim 2, wherein the wireless charging unit further comprises an LED lamp module electrically connected to the main control module, and the main control module switches between a magnetic charging mode and a non-magnetic charging mode according to a switching signal and controls the LED lamp module to display different colors according to the corresponding charging modes.
8. A wireless charging assembly, characterized by comprising a triggering unit and a wireless charging module according to any one of claims 2 to 7, wherein the triggering unit is detachably connected with the wireless charging module, the detecting module detects the existence of the triggering unit and generates a corresponding switching signal, and the main control module switches between a magnetic attraction charging mode and a non-magnetic attraction charging mode according to the switching signal.
9. The wireless charging assembly of claim 8, wherein the trigger unit is a magnet.
10. A wireless charger, comprising a charging head and the wireless charging assembly of claim 8 or 9; the charging head is connected with the wireless charging module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120646268.8U CN215817561U (en) | 2021-03-30 | 2021-03-30 | Wireless charging module, wireless charging assembly and wireless charger |
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| CN202120646268.8U CN215817561U (en) | 2021-03-30 | 2021-03-30 | Wireless charging module, wireless charging assembly and wireless charger |
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