CN217692725U - Charging device and corresponding vehicle - Google Patents
Charging device and corresponding vehicle Download PDFInfo
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- CN217692725U CN217692725U CN202221174662.7U CN202221174662U CN217692725U CN 217692725 U CN217692725 U CN 217692725U CN 202221174662 U CN202221174662 U CN 202221174662U CN 217692725 U CN217692725 U CN 217692725U
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Abstract
This writing relates to the technical field of charging, especially relates to a charging device and corresponding vehicle. The charging power adjusting method is used for solving the problem that the charging power of various mobile terminals cannot be adapted to be adjusted in the prior art. The charging module of the charging device in the embodiment charges the equipment to be charged through the charging interface; the output power detection unit is connected between the charging module and the charging interface and used for collecting the output power of the charging module to the charging interface; the main control unit is connected with the charging module and the output power detection unit, and controls the output power of the charging module according to the output power acquired by the output power detection unit and the target charging power of the device to be charged. By using the embodiment, the charging module can be adjusted to meet the target charging power of the device to be charged according to the output power of the charging module to the charging interface and the target charging power of the device to be charged.
Description
Technical Field
This paper relates to the technical field of charging, especially relates to a charging device and corresponding vehicle.
Background
With the popularization of mobile terminals, more and more people need to carry various mobile terminals with them, such as mobile phones, tablet computers and other devices, and the mobile terminals need to be supplemented with electric energy at any time, that is, charging, in the prior art, both wireless charging and wired charging have a problem that a charger can only charge the mobile terminal according to a preset gear, and cannot flexibly adjust output power according to the charging power required by the mobile terminal.
How to realize flexible charging of various charging powers of a mobile terminal is a problem which needs to be solved urgently in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, embodiments herein provide a charging device and a corresponding vehicle, which are used to solve the problem in the prior art that charging power of various mobile terminals cannot be adapted to be adjusted.
The utility model provides a charging device, which comprises a charging module, an output power detection unit, a charging interface and a main control unit;
the charging module charges the equipment to be charged through the charging interface;
the output power detection unit is used for collecting the output power of the charging module to the charging interface;
the main control unit is connected with the charging module and the output power detection unit, and controls the output power of the charging module according to the output power acquired by the output power detection unit and the target charging power of the device to be charged.
As one aspect of embodiments herein, for wireless charging, the charging module comprises a wireless charging power supply, the output power detection unit comprises a wireless output power detection unit, the wireless charging interface comprises a power transmitting coil;
the charging device also comprises a full-bridge resonant circuit, a power transmitting coil driving circuit, a decoding circuit and a wireless charging controller;
the wireless charging power supply is connected with the wireless output power detection unit, the wireless output power detection unit is connected with the full-bridge resonant circuit, the full-bridge resonant circuit is connected with the power transmitting coil driving circuit, the power transmitting coil driving circuit is connected with the power transmitting coil, the power transmitting coil is connected with the decoding circuit, and the wireless charging controller is respectively connected with the main control unit, the wireless charging power supply, the full-bridge resonant circuit, the power transmitting coil driving circuit and the decoding circuit;
the wireless charging controller receives the wireless output power of the wireless charging power supply detected by the wireless output power detection unit, receives the wireless target charging power of the device to be charged acquired by the decoding circuit, and sends the wireless output power and the wireless target charging power to the main control unit;
the main control unit sends a control instruction to the wireless charging controller according to the wireless target charging power, and the wireless charging controller adjusts the wireless output power of the wireless charging power supply according to the control instruction, so that the charging power of the device to be charged reaches the wireless target charging power.
As one aspect of embodiments herein, for wired charging, the charging module comprises a wired charging power supply, the output power detection unit comprises a wired output power detection unit;
the charging device also comprises a wired charging controller;
the wired charging power supply is connected with a wired charging controller, the wired charging controller is connected with a wired output power detection unit, the wired output power detection unit is connected with a wired charging interface, and the wired charging controller is also connected with the wired charging interface;
the wired charging controller acquires wired output power received by the wired charging interface through the wired output power detection unit, receives wired target charging power of the device to be charged acquired by the wired charging interface, and sends the wired output power and the wired target charging power to the main control unit;
the main control unit sends a control instruction to the wired charging controller according to the wired target charging power, and the wired charging controller adjusts the wired output power of the wired charging power according to the control instruction, so that the charging power of the device to be charged reaches the wired target charging power.
Embodiments herein also provide a vehicle having the above charging device, the charging device being in communication with a controller of the vehicle.
By utilizing the embodiment, the charging module can be adjusted according to the output power of the charging module to the charging interface and the target charging power of the equipment to be charged, so that the target charging power of the equipment to be charged is met, the output power of the charging module can be flexibly, dynamically and continuously adjusted, and the problem that the equipment to be charged is output by a plurality of preset fixed output powers and cannot be compatible with various target charging power requirements is solved; the device to be charged can be charged with enough charging power, so that the charging efficiency is improved, and the charging time is shortened; the problem that the output power is lower than the target charging power required by the equipment to be charged due to aging or impedance change of devices of a wired or wireless part in the charging device can be solved, namely when the charging device is charged wirelessly, the equipment to be charged is eccentrically arranged with the power transmitting coil, the charging power received by the equipment to be charged can be improved by improving the output power of the charging module, and the quick charging function of the equipment to be charged is fully utilized.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art, the drawings used in the embodiments or technical solutions in the prior art are briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a charging device according to an embodiment of the disclosure;
fig. 2 is a schematic structural diagram of a charging device according to an embodiment of the disclosure;
FIG. 3 is a circuit diagram of an input detection circuit according to an embodiment of the present disclosure;
FIG. 4 is a schematic circuit diagram of an auxiliary power supply according to an embodiment of the present disclosure;
fig. 5 is a functional block diagram of a wireless charging section according to an embodiment herein;
FIG. 6 is a schematic circuit diagram of a wireless charging power supply according to an embodiment of the present disclosure;
FIG. 7 is a schematic circuit diagram of a wireless output power detection unit and a full-bridge resonant circuit according to an embodiment of the present disclosure;
FIG. 8 is a schematic circuit diagram of a power transmitting coil driving circuit according to an embodiment of the present disclosure;
fig. 9 is a schematic circuit diagram of a wireless charging controller according to an embodiment of the present disclosure;
FIG. 10 is a functional block diagram of a wired charging section according to an embodiment herein;
FIG. 11 is a schematic circuit diagram of a wired charging power supply according to an embodiment of the present disclosure;
FIG. 12 is a circuit diagram illustrating a wired charging controller and a wired output power detection unit according to an embodiment of the present disclosure;
FIG. 13 is a circuit diagram of a master control unit according to an embodiment of the present disclosure;
FIG. 14 is a schematic circuit diagram of a temperature detection unit according to an embodiment of the present disclosure;
fig. 15 is a circuit schematic of a communication unit according to embodiments herein;
FIG. 16 is a circuit diagram of a display unit according to an embodiment of the present disclosure;
fig. 17 is a circuit diagram of a heat dissipation unit according to an embodiment of the disclosure.
[ description of reference ]
100. A charging device;
101. a charging module;
102. an output power detection unit;
103. a charging interface;
104. a main control unit;
105. a power source;
106. a device to be charged;
201. a power source;
202. a wired charging power supply;
203. a wired output power detection unit;
204. a wired charging interface;
205. a wired charge controller;
206. a wireless charging power supply;
207. a wireless output power detection unit;
208. a wireless charging interface;
209. a wireless charging controller;
210. a main control unit;
211. a device to be charged;
212. a temperature detection unit;
213. a display unit;
214. a heat dissipation unit;
215. a communication unit;
501. a wireless charging power supply;
502. a wireless output power detection unit;
503. a full-bridge resonant circuit;
504. a power transmitting coil drive circuit;
505. a power transmitting coil;
506. a wireless charging controller;
507. a decoding circuit;
1001. a wired charging power supply;
1002. a wired charge controller;
1003. a wired output power detecting unit;
1004. and a wired charging interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described below clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the embodiments described are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments herein without making any creative effort, shall fall within the scope of protection.
Fig. 1 is a schematic structural diagram of a charging apparatus according to an embodiment of the present disclosure, in which it is described that the output power of a charging module can be collected, and the output power of the charging module is gradually increased according to the collected output power and a maximum charging power acceptable by a device to be charged (e.g., a mobile phone, a tablet computer, etc.), so that the device to be charged can be charged with a higher charging power, and the charging apparatus 100 specifically includes:
the charging system comprises a charging module 101, an output power detection unit 102, a charging interface 103, a main control unit 104, a power supply 105 and a device to be charged 106;
the charging module 101 is connected with a power supply 105, and charges a device 106 to be charged through a charging interface 103;
the output power detection unit 102 is connected between the charging module 101 and the charging interface 103 and is used for collecting the output power of the charging module 101 to the charging interface 103;
the main control unit 104 is connected to the charging module 101 and the output power detection unit 102, and controls the output power of the charging module 101 according to the output power obtained by the output power detection unit 102 and the target charging power of the device to be charged.
The power source 105 may be a commercial power, a battery, a vehicle-mounted battery, or a generator, the charging module 101 may convert an alternating current or a direct current into a current charged by the device 106 to be charged, after the charging module 101 outputs the charging current, the charging current is input to the device 106 to be charged through the charging interface 103, in this process, the output power detection unit 102 collects an output power of the charging current of the charging module 101 between the charging module 101 outputs the charging current to the charging interface 103, and sends the output power value to the main control unit 104, and the main control unit 104 controls the charging module 101 to increase the output power or decrease the output power according to a target charging power and the output power value of the device 106 to be charged, so that automatic adjustment of the output power of the device 106 to be charged is achieved, and problems of low charging efficiency, long time and the like caused by charging the device 106 to be charged with the output power of a preset gear in the prior art are avoided.
In one embodiment herein, the charging interface includes a wired charging interface and a wireless charging interface, where the wired charging interface may include, for example, TYPE-a, TYPE-C, and the like interfaces, and may further include a Lighting interface, and the wireless charging interface may include, for example, an interface formed by a power transmitting coil and configured to wirelessly charge with a device to be charged. In the embodiments herein, the wireless charging interface and the wired charging interface may be multiple, for example, include 1 or more wireless charging interfaces, and also include 1 or more wired charging interfaces, for example, 1 wireless charging interface and 2 wired charging interfaces.
As shown in fig. 2, which is a schematic structural diagram of a charging device in an embodiment herein, the charging device in the embodiment of the present disclosure includes a wireless charging portion and a wired charging portion, and a main control unit may dynamically allocate output power of each charging interface according to a total required charging power of devices to be charged connected to the wired charging interface and the wireless charging interface, where the charging device specifically includes:
the charging system comprises a power supply 201, a wired charging power supply 202, a wired output power detection unit 203, a wired charging interface 204, a wired charging controller 205, a wireless charging power supply 206, a wireless output power detection unit 207, a wireless charging interface 208, a wireless charging controller 209, a main control unit 210 and a device to be charged 211; also comprises a temperature detection unit 212, a display unit 213, a heat dissipation unit 214 and a communication unit 215.
The power supply 201 is respectively connected with a wired charging power supply 202 and a wireless charging power supply 206, the wired charging power supply 202 is connected with a wired charging controller 205, the wired charging controller 205 is connected with a wired output power detection unit 203, the wired output power detection unit 203 is connected with a wired charging interface 204, the wired charging interface 204 is connected with a device to be charged 211, and the wired charging controller 205 feeds back the numerical value of the wired output power detected by the wired output power detection unit 203 to the main control unit 210;
the wireless charging power supply 206 is connected with the wireless output power detection unit 207, the wireless output power detection unit 207 is connected with the wireless charging interface 208, the wireless charging interface 208 is connected with another device 211 to be charged through electromagnetic induction, the wireless output power detection unit 207 is further connected with the wireless charging controller 209, the wireless charging controller 209 is connected with the wireless charging power supply 206, and the wireless charging controller 209 feeds back the value of the wireless output power detected by the wireless output power detection unit 207 to the main control unit 210.
The power supply 201 may be a commercial power, a battery power, or an automobile power, and if the power supply is a dc current, the dc current needs to be converted into an ac current after the wireless output power detection unit 207, so as to charge the device to be charged 211 through the power transmitting coil, and if the power supply is an ac current, the ac current needs to be converted into a dc current at the wired charging power supply 202, and then the device to be charged 211 is charged through the wired output power detection unit 203 and the wired charging interface 204. In the following embodiments, a dc power supply is used as an example, but it should be understood that the present invention is not limited thereto.
The temperature detection unit 212, the display unit 213, the heat dissipation unit 214, and the communication unit 215 are respectively connected to the main control unit 210, and the main control unit 210 controls the heat dissipation unit 214 to operate according to a detection result of the temperature detection unit 212, for example, the heat dissipation unit 214 is a fan, and controls the fan to rotate, so as to reduce the temperature of the charging device. The main control unit 210 may also transmit the working temperature detected by the wired output power, the wireless output power, or the temperature detection unit 212 to the display unit 213 for displaying, or when the display unit 213 cannot display rich information, display whether the currently connected device 211 to be charged has been rapidly charged only according to the LED indicator, that is, the output power reaches a certain threshold; in addition, the main control unit 210 may further send the information of the charging device, i.e., the operating state information, the output power, and the like of each component, and the information of the device to be charged to the vehicle bus through the communication unit 215, so that a vehicle controller (ECU) may perform corresponding operations according to the information of the charging device or the information of the device to be charged, for example, display the information of the charging device or the information of the device to be charged through a central dashboard of the vehicle; or the information of opening or closing the vehicle door is acquired through the connection with the vehicle door, so that the main control unit 210 can remind the user that the device 211 to be charged is left in the vehicle through the sound or the display (vehicle-mounted display screen and the like) of the vehicle according to the information of the vehicle door and the state of the charging device, that is, whether the device 211 to be charged is being charged.
The temperature detecting unit 212 may be a temperature sensitive resistor, and is disposed in the wireless charging interface 208, such as in or near the power transmitting coil, or in the vicinity of the wired charging controller 205, for detecting the operating temperature of the charging device. The heat dissipation unit 214 may also be disposed inside the charging device near the heat generating component, so as to achieve the purposes of dissipating heat and ensuring the safety of the device.
In the embodiment herein, the power supply further includes an input detection circuit, as shown in fig. 3, which is a schematic circuit diagram of the input detection circuit in the embodiment herein, and voltage division and control of the input power supply are described in this figure, where VBAT + and BAT-are respectively positive and negative poles of a dc power supply input, VBUS is an output terminal that provides a power supply to the entire charging device, and VBUS _ ADC is an output terminal that outputs a detection current to the main control unit, so that when an input voltage is abnormal, the main control unit can timely process the input voltage to avoid damage to other electrical elements.
In the embodiment herein, after the input detection circuit, there is an auxiliary power supply, and an output of the auxiliary power supply is connected to other components of the charging device, as shown in fig. 4, which is a circuit schematic diagram of the auxiliary power supply in the embodiment herein, and in this figure, two outputs for converting a dc power supply into a power transmitting COIL driving voltage and supplying current to other electrical elements are described, where VBUS is a power output terminal connected to the input detection circuit, a dc power supply is introduced, and after processing by the electrical elements as in the figure, a COIL _ SEL _ PR terminal and a BUCK _5V terminal are formed, where the COIL _ SEL _ PR terminal is an output terminal for driving the power transmitting COIL to perform wireless charging, and the BUCK _5V terminal is an output terminal for supplying power to electrical elements such as a wireless charging controller, a wired charging controller, a main control unit, a communication unit, and the like.
Fig. 5 is a schematic block diagram of a wireless charging section of a charging device according to an embodiment of the present disclosure, and the structure of the wireless charging section of the charging device according to the present disclosure is described in this figure, which includes a wireless charging power supply 501, a wireless output power detection unit 502, a full-bridge resonant circuit 503, a power transmitting coil driving circuit 504, a power transmitting coil 505, a wireless charging controller 506, and a decoding circuit 507.
The wireless charging controller 506 is further connected with the wireless charging power supply 501, the wireless output power detection unit 502, the full-bridge resonant circuit 503 and the power transmitting coil driving circuit 504, the wireless charging controller 506 supplies power through the auxiliary power supply, and the auxiliary power supply outputs 5V voltage to the wireless charging controller 506.
As shown in fig. 6, which is a schematic circuit diagram of the wireless charging power supply of the embodiment herein, a basic circuit structure of the wireless charging power supply is described in this figure, wherein an input terminal of the wireless charging power supply is an output terminal VBUS from an input detection circuit, the VBUS may range from 9V to 16V, after processing by a wireless charging power supply chip and processing by a buck-boost circuit composed of Q1, Q2, Q3, and Q4 switching tubes, after a current measurement by a resistor R16 and voltage division by resistors R18 and R19 are fed back to a feedback pin (FB) of the wireless charging power supply chip to measure an output voltage (for protecting a lower circuit), and after a filter circuit composed of C26, C27, C28, and C29 is stabilized and filtered, a D2DOUT output current is formed. The PIN3 (PWM) PIN of the wireless charging power supply chip is controlled by the output of the SC8100_ PWM PIN of the wireless charging controller, and the wireless output power, namely D2DOUT, is adjusted by adjusting the PWM signal.
Fig. 7 is a schematic circuit diagram of the wireless output power detection unit and the full-bridge resonant circuit according to the embodiment, in which the wireless output power detection unit and the full-bridge resonant circuit connected to the wireless charging power supply are described, wherein D2DOUT is the output of the wireless charging power supply, a resistor R47 is further connected in series on the current line of the full-bridge resonant circuit for detecting the wireless output power of the wireless charging power supply, two ends of the resistor R47 are respectively connected to PIN7 and PIN8 PINs of the wireless charging controller so as to feed the current at two ends of the resistor R47 back to the wireless charging controller, the full-bridge resonant circuit is formed by Q6, Q7, Q8, and Q9 switching tubes in fig. 7, and the control ends of each switching tube are DRVH2, DRVH1, DRVL2, and DRVL1 respectively connected to corresponding PINs of the wireless charging controller, and the input direct current D2DOUT is converted into alternating current output AC1 and AC2 for driving the power transmitting coil driving circuit through the control of the wireless charging controller.
Fig. 8 is a schematic circuit diagram of a power transmitting COIL driving circuit according to an embodiment of the present invention, in which a circuit structure of the power transmitting COIL driving circuit is described, an AC _ COIL terminal of the power transmitting COIL driving circuit is used for connecting with a decoding circuit of a wireless charging controller, and is used for wirelessly communicating with a device to be charged through the power transmitting COIL, for example, the wireless communication protocol based on QI protocol is used for communication, in the embodiment, three power transmitting COILs (in the figure, a power transmitting COIL 1, a power transmitting COIL 2, and a power transmitting COIL 3) are taken as an example, the three power transmitting COILs are driven by two AC1/AC2 alternating current electrodes output by a full bridge resonant circuit and a voltage output by a COIL _ SEL _ PR terminal of an auxiliary power supply through respective power transmitting COIL driving circuits, therefore, wireless charging and wireless communication with the equipment to be charged are realized, the three power transmitting COILs are respectively connected with corresponding pins of a wireless charging controller and work under the control of the wireless charging controller, and the three power transmitting COIL driving circuits and the three power transmitting COILs work in pairs under the control of the wireless charging controller, for example, the power transmitting COIL 1 and the corresponding first power transmitting COIL driving circuit work to wirelessly charge the corresponding equipment to be charged, or the power transmitting COIL 2 and the corresponding second power transmitting COIL driving circuit work to wirelessly charge the corresponding equipment to be charged, or the power transmitting COIL 3 and the corresponding third power transmitting COIL driving circuit work to wirelessly charge the corresponding equipment to be charged; and the wireless charging of a plurality of devices to be charged can be completed by controlling a plurality of power transmitting coils and corresponding power transmitting coil driving circuits to work together according to the wireless charging controller.
Wherein, power transmitting coil's the position that sets up is different, can set up to various power transmitting coil positions of treating the battery charging outfit, for example vertical arrangement, can correspond the different condition in position on the vertical direction of multiple battery charging outfit power transmitting coil like this, perhaps transverse arrangement, can correspond like this and transversely place a plurality of battery charging outfits of treating side by side to carry out wireless charging to a plurality of battery charging outfits of treating simultaneously.
Fig. 9 is a schematic circuit diagram of a wireless charging controller according to an embodiment of the present disclosure, in which a circuit structure of the wireless charging controller is described, the wireless charging controller receives power supplied by a chip of an auxiliary power supply BUCK _5V through PINs PIN3, PIN5, and PIN6, communicates with a UART1_ MCU _ RXD PIN and a UART1_ MCU _ TXD PIN of a main control unit through a PIN15, a PIN16, and a serial port, sends wireless output power detected by a wireless output power detection unit to the main control unit, and sends information of a device to be charged obtained through a decoding circuit, and can also receive a power allocation control instruction sent by the main control unit. The wireless charging controller sends a PWM signal for adjusting the wireless output power to the wireless charging power supply through a PIN47 PIN (SC 8100_ PWM PIN). PINs PIN35-PIN43 of the wireless charging controller are respectively used for outputting control signals for controlling each switch tube of the full-bridge resonant circuit, and PINs PIN25-PIN27 are respectively used for controlling the power transmitting coil driving circuits corresponding to the three power transmitting coils.
When the device to be charged is close to the power transmitting coil, the wireless charging connection is established between the device to be charged and the power transmitting coil due to the magnetic field transmitted by the power transmitting coil of the charging device, and the communication connection between the device to be charged and the power transmitting coil can be established by adopting a QI protocol in the prior art. After the communication connection is established, the device to be charged may send the maximum receiving Power (acceptable maximum charging Power) supported by the device to be charged to the Power transmitting coil through the request message, for example, the maximum receiving Power of the device to be charged is carried in a field 0X04 of the message, of course, other information may also be carried in other communication messages or idle fields in the communication messages of both sides, the Power transmitting coil restores the request message to an information format readable by the wireless charging controller through the decoding circuit, the wireless charging controller reports the information to the main control unit through the serial port, so that the main control unit determines whether or not the device to be charged supports and which wireless charging Power mode is supported according to the information, where the wireless charging mode includes, for example, QI base Power Profile (QI BPP), QI Extended Power Profile (QI base Power Profile), or other private charging protocols, and the main control unit adjusts the wireless output Power of the wireless charging Power supply according to the information and the wireless output Power, so that the transmitting Power of the device to be charged may be further increased, so that the device to be charged may receive the maximum receiving Power to complete the charging quickly.
When the main control unit receives the wireless output power and the maximum charging power acceptable by the device to be charged, the above judgment is performed, and under the condition that no shielding exists or no eccentricity exists between the device to be charged and the power transmitting coil, when the wireless output power is larger than the maximum charging power acceptable by the device to be charged, the wireless output power of the wireless charging power supply can be reduced by a certain step length, for example, 0.5W, until the wireless output power is equal to the maximum charging power acceptable by the device to be charged; when the wireless output power is less than the maximum charging power acceptable to the device to be charged, the wireless output power of the wireless charging power supply may be increased by a certain step size, for example, 0.5W, until the wireless output power is equal to the maximum charging power acceptable to the device to be charged.
Fig. 10 is a schematic block diagram of a wired charging section of a charging device according to an embodiment of the present disclosure, and the structure of the wired charging section of the charging device according to the present disclosure is described in this figure, which includes a wired charging power supply 1001, a wired charging controller 1002, a wired output power detection unit 1003, and a wired charging interface 1004.
The wired charging power supply 1001 takes VBUS output by the input detection circuit as an input power supply, and outputs the VBUS to the wired charging interface 1004 through the wired charging controller 1002 and the wired output power detection unit 1003 after voltage boosting and reducing. The wired charging controller 1002 also supplies power via the auxiliary power supply described above, which outputs a voltage of 5V to the wired charging controller 1002. The wired charging controller 1002 passes the wired output power value detected by the wired output power detection unit 1003 through I 2 The interface C is transmitted to the main control unit, so that the main control unit sends a control instruction of power distribution, and the wired charging controller 1002 adjusts the wired output power according to the control instruction.
The wired charging interface 1004 may include a plurality of, for example, 2 TYPE-a interfaces, 2 TYPE-C interfaces, a plurality of wired charging controllers corresponding to the wired charging interfaces, and a plurality of wired output power detection units.
As shown in fig. 11, which is a schematic circuit diagram of the wired charging power supply of the present embodiment, a circuit structure of the wired charging power supply is described in this figure, the input end of the wired charging power supply is an output end VBUS from the input detection circuit, the VBUS may be in a range of 9V-16V, and after processing by the wired charging power supply chip and processing by the step-up and step-down circuit composed of Q35, Q36, Q37, and Q38 switching tubes, a PD _22V output current is formed after a current measurement by a resistor R169 and voltage division by resistors R171, R172, and R177 are fed back to a feedback pin (FB) of the wired charging power supply chip to measure an output voltage (for protecting a lower circuit).
Fig. 12 is a schematic circuit diagram of the wired charging controller and the wired output power detecting unit according to the embodiment herein, in which a circuit structure of two wired charging controllers and two wired output power detecting units and two wired charging interfaces are described, wherein the upper part is a TYPE-C TYPE wired charging part, the lower part is a TYPE-a TYPE wired charging part, and the wired charging of the two parts is a wired charging controller supporting the PD protocol.
The upper TYPE-C wired charging controller in the figure receives power input of a wired charging power supply PD _22V through a PIN19 PIN, then controls charging current output to the TYPE-C interface through PIN15, PIN16, PIN17 and PIN18 PINs, the charging current achieves the purpose of wired output power detection through a resistor R148, two sides of the resistor R148 are connected to a PIN6 (CSPC) PIN and a PIN7 (CSNC) PIN of the TYPE-C wired charging controller, and the wired charging controller is connected with a formula P Wired output C port ＝(U Difference between voltages at two ends of R148 ) 2 the/R148 calculates the wired output power of the TYPE-C interface, thereby realizing the purpose that the wired output power passes through the I connected with the PIN21 and the PIN20 PINs 2 The C interface SCL _ TYPE and SDA _ TYPE transmit PIN25 PIN and PIN26 PIN of the main control unit, PIN14 PIN of the TYPE-C TYPE wired charging controller, namely VDRV _ TYPE connection end output current as I 2 The pull-up power supply of the C bus and the TYPE-C TYPE wired charging controller can also acquire the information of the to-be-charged equipment connected with the TYPE-C TYPE wired charging controller through the TYPE-C interface and enable the information to pass through I 2 The C interface is transmitted to the master control unit so that the TYPE-C TYPE wired charging controller can receive the control of the master control unit to adjust the wired output power.
The TYPE-A TYPE wired charging controller at the lower part in the figure receives power input of a wired charging power supply PD _22V through PINs PIN13, PIN14, PIN15 and PIN16, then controls charging current output to the TYPE-A interface through PINs PIN2-PIN6, the charging current achieves the purpose of wired output power detection through a resistor R154, and two sides of the resistor R154 are connected with PIN1 (CS) of the TYPE-A TYPE wired charging controllerP3) PIN and PIN24 (CSN 3) PIN, by formula P Wired output A port ＝(U Difference between voltages at both ends of R154 ) 2 the/R154 calculates the wired output power of the TYPE-A interface, thereby realizing the purpose that the wired output power passes through the I connected with the PIN9 and PIN8 PINs 2 C interface SCL _ TYPE A and SDA _ TYPE A transmit PIN29 PIN and PIN30 PIN to the main control unit, PIN10 PIN of TYPE-A TYPE wired charging controller, that is VDRV _ TYPE A connection end output current is as I 2 The C bus pulls up the power supply, the TYPE-A TYPE wired charging controller can also acquire the information of the equipment to be charged connected with the TYPE-A TYPE wired charging controller through the TYPE-A interface, and the information also passes through the I 2 The C interface is transmitted to the main control unit, so that the TYPE-A TYPE wired charging controller can be controlled by the main control unit to adjust the wired output power.
The method comprises the steps that a charging device is connected with equipment to be charged through a wired charging interface, such as TYPE-A and/or TYPE-C, after connection, charging connection and data information transmission can be established between the charging device and the equipment to be charged, rapid charging connection based on a PD protocol can be established between the charging device and the equipment to be charged through the data information, wired target charging power of the equipment to be charged is obtained, the wired target charging power can comprise the maximum charging power acceptable for the equipment to be charged, and when a main control unit receives the maximum charging power acceptable for the equipment to be charged and the wired output power obtained by a wired output power detection unit, if the wired output power is judged not to reach the maximum charging power acceptable for the equipment to be charged, the wired charging controller is informed to gradually increase the wired output power; and if the wired output power exceeds the maximum charging power acceptable by the equipment to be charged, informing the wired charging controller to gradually reduce the wired output power.
As shown in fig. 13, which is a schematic circuit diagram of a main control unit according to an embodiment of the present disclosure, chip PINs of a Main Control Unit (MCU) are described in the figure, where PIN2 is connected to a temperature detection unit, PINs PIN6 to PIN9 are connected to a vehicle bus for data communication, PIN11 is directly connected to a vehicle door, PINs 14 and 15 are connected to a wireless charging controller, PIN17 is connected to a heat dissipation unit, PINs 23 and 24 are connected to a display unit, PIN43 is connected to an input detection circuit, and PIN29 is connected to a PIN29PIN30 PIN and TYPE-A TYPE wired charging controller I 2 C interface connection's SCL _ TYPE and SDA _ TYPE link, PIN25, PIN26 base PIN are with the wired charging controller's of TYPE-C TYPE I 2 The SDA _ TYPEC and the SCL _ TYPEC connection ends of the C interface connection. The main control unit can also be directly connected with the vehicle door of the vehicle through a PIN11 PIN (PEPS connection end), and the opening or closing information of the vehicle door can be obtained by judging the high level and the low level of the PIN, so that whether the device to be charged is left in the vehicle when a user leaves the vehicle can be judged by combining the charging state of a wired charging part or a wireless charging part of the charging device, and the vehicle ECU is informed to send out prompt information on a display screen or a loudspeaker through a port connected with the vehicle bus, wherein for example, the main control unit can judge whether the device to be charged has output power through a wired output power detection unit or a wireless output power detection unit, and then judge whether the device to be charged is charging. Through the connection pin with the vehicle bus, the charging state of the charging device can also be sent to the vehicle ECU, so that the ECU can display information of the equipment to be charged, such as a brand, an equipment name, whether quick charging is carried out, the current charging power, the electric quantity of the equipment to be charged and the like, on a vehicle display screen.
Fig. 14 is a schematic circuit diagram of a temperature detection unit according to an embodiment of the present disclosure, in which a circuit structure of the temperature detection unit is described, where the temperature detection unit mainly includes a temperature-sensitive resistor (NTC), and the temperature-sensitive resistor may be placed near an electrical component that generates heat in a charging device, such as a power transmitting Coil, a wireless charging power supply, a wireless charging controller, a wired charging power supply, a wired charging controller, or the like, the temperature-sensitive resistors may also be multiple and respectively placed near different electrical components that generate heat, and a detection result of the temperature detection unit is transmitted to PIN2 of the main control unit through Coil _ NTC.
Fig. 15 is a schematic circuit diagram of a communication unit according to an embodiment of the present disclosure, in which a circuit structure of the communication unit is described, wherein the communication unit is connected to a CAN-TX PIN, a CAN _ RX PIN, and a CAN _ EN PIN of the main control unit through PINs PIN1, PIN4, and PIN6, respectively, connects the main control unit to vehicle buses CANH and CANL PINs, and implements communication with a vehicle controller.
Fig. 16 is a schematic circuit diagram of a display unit according to an embodiment of the present disclosure, in which a circuit structure of the display unit is described, where the display unit is two LED lamps, and the display unit displays different colors or flashes under the control of the main control unit.
Fig. 17 is a schematic circuit diagram of a heat dissipation unit according to an embodiment of the present disclosure, in which a circuit structure of the heat dissipation unit is described, wherein the heat dissipation unit rotates the FAN J5 under the control of the main control unit PWM _ FAN pin, so as to achieve the purpose of dissipating heat of the charging device.
The embodiment herein also provides a vehicle having the charging device, the vehicle is connected with the charging device through a bus, and can perform mutual communication, for example, the output power of the charging device can be transmitted to the ECU of the vehicle
Through the embodiment, the charging module can be adjusted according to the output power of the charging module to the charging interface and the target charging power of the equipment to be charged, so that the target charging power of the equipment to be charged is met, the output power of the charging module can be flexibly, dynamically and continuously adjusted, and the problem that the equipment to be charged is output by a plurality of preset fixed output powers and cannot be compatible with various target charging power requirements is solved; the equipment to be charged can be charged with enough charging power, so that the charging efficiency is improved, and the charging time is shortened; the problem that the output power is lower than the target charging power required by the equipment to be charged due to aging or impedance change of devices of a wired or wireless part in the charging device can be solved, even if the equipment to be charged is eccentrically opposite to the power transmitting coil during wireless charging, the charging power received by the equipment to be charged can be improved by improving the output power of the charging module, and therefore the quick charging function of the equipment to be charged is fully utilized.
It should be understood that, in various embodiments herein, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments herein.
It should also be understood that, in the embodiments herein, the term "and/or" is only one kind of association relation describing an associated object, and means that there may be three kinds of relations. For example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided herein, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is only a logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments herein.
In addition, functional units in the embodiments herein may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions in the present disclosure may substantially or partially contribute to the prior art, or all or part of the technical solutions may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the methods in the embodiments herein. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The principles and embodiments of this document are explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts; meanwhile, for the general technical personnel in the field, according to the idea of this document, there may be changes in the concrete implementation and the application scope, in summary, this description should not be understood as the limitation of this document.
Claims (18)
1. A charging device is characterized by comprising a charging module, an output power detection unit, a charging interface and a main control unit;
the charging module charges the equipment to be charged through the charging interface;
the output power detection unit is used for collecting the output power of the charging module to the charging interface;
the main control unit is connected with the charging module and the output power detection unit, and controls the output power of the charging module according to the output power obtained by the output power detection unit and the target charging power of the device to be charged.
2. The charging device of claim 1, wherein the output power detection unit is connected between the charging module and the charging interface.
3. The charging device according to claim 1, wherein the charging interface comprises a wired charging interface and/or a wireless charging interface.
4. The charging device of claim 3, wherein the charging module comprises a wireless charging power supply, the output power detection unit comprises a wireless output power detection unit, and the wireless charging interface comprises a power transmitting coil;
the charging device also comprises a full-bridge resonance circuit, a power transmitting coil driving circuit, a decoding circuit and a wireless charging controller;
the wireless charging power supply is connected with the wireless output power detection unit, the wireless output power detection unit is connected with the full-bridge resonant circuit, the full-bridge resonant circuit is connected with the power transmitting coil driving circuit, the power transmitting coil driving circuit is connected with the power transmitting coil, the power transmitting coil is connected with the decoding circuit, and the wireless charging controller is respectively connected with the main control unit, the wireless charging power supply, the full-bridge resonant circuit, the power transmitting coil driving circuit and the decoding circuit;
the wireless charging controller receives the wireless output power of the wireless charging power supply detected by the wireless output power detection unit, receives the wireless target charging power of the device to be charged acquired by the decoding circuit, and sends the wireless output power and the wireless target charging power to the main control unit;
the main control unit sends a control instruction to the wireless charging controller according to the wireless target charging power, and the wireless charging controller adjusts the wireless output power of the wireless charging power supply according to the control instruction, so that the charging power of the equipment to be charged reaches the wireless target charging power.
5. The charging device of claim 4, wherein the wireless output power detection unit comprises a wireless detection resistor connected in series between the wireless charging power supply and a full-bridge resonant circuit, and feeds back a voltage across the wireless detection resistor to the wireless charging controller.
6. The charging device according to claim 4, wherein the full-bridge resonant circuit converts a direct current input from the wireless charging power supply through the wireless output power detection unit into an alternating current under the control of the wireless charging controller, and outputs the alternating current to the power transmitting coil driving circuit, and the wireless charging of the device to be charged is realized through the power transmitting coil under the driving of the power transmitting coil driving circuit.
7. The charging device of claim 6, wherein the power transmitting coil comprises more than one power transmitting coil, different power transmitting coils being located at different positions to provide a larger wireless charging area.
8. The charging device of claim 3, wherein the charging module comprises a wired charging power supply, and the output power detection unit comprises a wired output power detection unit;
the charging device also comprises a wired charging controller;
the wired charging power supply is connected with a wired charging controller, the wired charging controller is connected with a wired output power detection unit, the wired output power detection unit is connected with a wired charging interface, and the wired charging controller is also connected with the wired charging interface;
the wired charging controller acquires wired output power received by the wired charging interface through the wired output power detection unit, receives wired target charging power of the device to be charged acquired by the wired charging interface, and sends the wired output power and the wired target charging power to the main control unit;
the main control unit sends a control instruction to the wired charging controller according to the wired target charging power, and the wired charging controller adjusts the wired output power of the wired charging power according to the control instruction, so that the charging power of the device to be charged reaches the wired target charging power.
9. The charging device of claim 8, wherein the wired output power detection unit comprises a wired detection resistor and a wired detection capacitor, and the wired output power detection unit is connected in series between the wired charging controller and the wired charging interface and feeds back the voltage across the wired output power detection unit to the wired charging controller.
10. The charging device of claim 8, wherein the wired charging interface comprises more than one wired charging interface; the number of the wired output power detection units corresponds to the number of the wired charging interfaces; the number of the wired charging controllers corresponds to the number of the wired charging interfaces.
11. The charging device of claim 10, wherein the wired charging interface comprises a TYPE-A interface, a TYPE-C interface, or a Lighting interface.
12. A charging device as claimed in claim 3, further comprising a temperature detection unit provided in the charging device for detecting the temperature of the charging device.
13. The charging device of claim 12, wherein the temperature detection unit is disposed near a power transmitting coil of the wireless charging interface.
14. The charging device according to claim 3, further comprising a display unit connected to the main control unit for displaying the output power.
15. The charging device according to claim 3, further comprising a heat dissipation unit connected to the main control unit and disposed in the charging device for dissipating heat of the charging device according to the control of the main control unit.
16. The charging device of claim 15, wherein the heat dissipation unit is disposed near a power transmitting coil of the wireless charging interface.
17. The charging device according to any one of claims 1 to 16, further comprising a communication unit connected between the main control unit and a vehicle bus, and configured to transmit charging information of the charging device to a vehicle controller, so that the vehicle controller performs information interaction with the charging device.
18. A vehicle having the charging device according to any one of claims 1 to 17, characterized by comprising,
the charging device is in communication with a controller of the vehicle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221174662.7U CN217692725U (en) | 2022-05-06 | 2022-05-06 | Charging device and corresponding vehicle |
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| CN202221174662.7U CN217692725U (en) | 2022-05-06 | 2022-05-06 | Charging device and corresponding vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023213315A1 (en) * | 2022-05-06 | 2023-11-09 | 长春捷翼汽车科技股份有限公司 | Charging apparatus, charging method, and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023213315A1 (en) * | 2022-05-06 | 2023-11-09 | 长春捷翼汽车科技股份有限公司 | Charging apparatus, charging method, and vehicle |
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Address after: No. 957, Shunda Road, Gaoxin District, Changchun City, Jilin Province, 130000 Patentee after: Changchun Jieyi Automobile Technology Co.,Ltd. Address before: 130000, 1st floor, 957 Shunda Road, high tech Development Zone, Chaoyang District, Changchun City, Jilin Province Patentee before: CHANGCHUN JIEYI AUTO PARTS CO.,LTD. |
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