Vehicle-mounted charger

Abstract

The utility model relates to the technical field of USB3.0 data transmission and double-port charging, in particular to a vehicle-mounted charger, which comprises a panel, a circuit board and a shell, the circuit board is accommodated in the shell, the panel is connected with the shell, the panel is provided with a first through hole and a second through hole, and the first through hole is communicated with the second through hole. A TYPE-C interface of the circuit board is arranged in the first through hole, and a TYPE-A interface of the circuit board is arranged in the second through hole; the circuit board further comprises a USB3.0 HUB chip, an MPQ control chip and a USB3.0 connector, the USB3.0 connector is electrically connected with the USB3.0 HUB chip, and the USB3.0 HUB chip is electrically connected with the TYPE-C interface and the TYPE-A interface respectively, so that the USB3.0 data transmission function of the TYPE-C interface and the TYPE-A interface is realized; and the MPQ control chip is respectively and electrically connected with the TYPE-C interface and the TYPE-A interface, so that a 15W quick charging function of the TYPE-C interface and the TYPE-A interface is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of USB 3.0 data transmission and dual-port charging, in particular to a vehicle charger. Background Art

[0002] The USB car charger takes advantage of the versatility of USB, which is widely used in various charging interfaces. It is then applied to cars to convert the power in the car and transfer it to the corresponding charger using the unified USB interface. In this way, the standard power supply and USB interface in the car can be used to charge various types of chargers, such as mobile phones, MP3s, game consoles, etc.

[0003] With the development of science and technology, USB car chargers for new energy vehicles have more and more uses, and customer needs have become diversified, such as the need for USB fast charging, the need for fast data transmission, the need to read TF cards, and the need to achieve screen projection. Therefore, in order to meet the diverse needs of customers for USB car chargers, the inventor considers researching a USB car charging device. Utility Model Content

[0004] In view of the above problems, an embodiment of the utility model provides a car charger powered by a 24V power supply, which realizes fast data transmission and fast charging of the car charger through a TYPE-C interface and a TYPE-A interface with USB3.0 data transmission and dual-port 15W charging.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a car charger, including: a panel, a circuit board and a shell, the circuit board is accommodated in the shell, the panel is connected to the shell, a first through hole and a second through hole are provided on the panel, the TYPE-C interface of the circuit board is arranged in the first through hole, and the TYPE-A interface of the circuit board is arranged in the second through hole; the circuit board also includes a USB3.0HUB chip, an MPQ control chip and a USB3.0 connector, the USB3.0HUB chip and the MPQ control chip are electrically connected to the TYPE-C interface respectively, the USB3.0HUB chip and the MPQ control chip are electrically connected to the TYPE-A interface respectively, and the USB3.0 connector is used to connect to the car computer; the USB3.0 connector is electrically connected to the USB3.0 HUB chip, and the USB3.0 The HUB chip is electrically connected to the TYPE-C interface and the TYPE-A interface respectively to realize the data transmission function; the MPQ control chip is electrically connected to the TYPE-C interface and the TYPE-A interface respectively to realize the fast charging function.

[0006] Optionally, the circuit board further includes: an ACC power supply and a DC-DC converter; the ACC power supply is electrically connected to the DC-DC converter; and the DC-DC converter is electrically connected to the MPQ control chip.

[0007] Optionally, the ACC power supply is a 24V DC power supply.

[0008] Optionally, the on-board charger further includes a filter and a TVS tube, and the MPQ control chip is provided with a VDD pin; the DC-DC converter is electrically connected to the VDD pin through the filter and the TVS tube.

[0009] Optionally, the USB3.0 connector includes a DM pin, a DP pin, an RX+ pin, a TX+ pin, an RX- pin, a TX- pin and a GND pin, and the USB3.0 HUB chip includes a DM pin, a DP pin, an RX0+ pin, a TX0+ pin, an RX0- pin, a TX0- pin and a GND pin; the DM pin of the USB3.0 connector is electrically connected to the DM pin of the USB3.0 HUB chip; the DP pin of the USB3.0 connector is electrically connected to the DP pin of the USB3.0HUB chip; the RX+ pin is electrically connected to the RX0+ pin; the TX+ pin is electrically connected to the TX0+ pin; the RX- pin is electrically connected to the RX0- pin; the TX- pin is electrically connected to the TX0- pin; the GND pin of the USB3.0 connector is electrically connected to the GND pin of the USB3.0 HUB chip.

[0010] Optionally, the USB3.0 HUB chip further includes an RX1+ pin, an RX1- pin, a TX1+ pin, a TX1- pin, an RX2+ pin, an RX2- pin, a TX2+ pin and a TX2- pin, the TYPE-C interface includes an RX+ pin, an RX- pin, a TX+ pin and a TX- pin, and the TYPE-A interface includes an RX+ pin, an RX- pin, a TX+ pin and a TX- pin; the RX1+ pin is electrically connected to the RX+ pin of the TYPE-C interface; the RX1- pin is electrically connected to the The RX- pin is electrically connected; the TX1+ pin is electrically connected to the TX+ pin of the TYPE-C interface; the TX1- pin is electrically connected to the TX- pin of the TYPE-C interface; the RX2+ pin is electrically connected to the RX+ pin of the TYPE-A interface; the RX2- pin is electrically connected to the RX- pin of the TYPE-A interface; the TX2+ pin is electrically connected to the TX+ pin of the TYPE-A interface; the TX2- pin is electrically connected to the TX- pin of the TYPE-A interface.

[0011] Optionally, the MPQ control chip includes a DP1 pin, a DM1 pin, a first OUT pin, a first GND pin, a DP2 pin, a DM2 pin, a second OUT pin and a second GND pin, the TYPE-C interface also includes a USB D+ pin, a USB D- pin, a VBUS pin and a GND pin, and the TYPE-A interface also includes a USB D+ pin, a USB D- pin, a VBUS pin and a GND pin; the DP1 pin is electrically connected to the USB D+ pin of the TYPE-C interface; the DM1 pin is electrically connected to the USB D- pin of the TYPE-C interface; the first OUT pin is electrically connected to the VBUS pin of the TYPE-C interface; the first GND pin is electrically connected to the GND pin of the TYPE-C interface; the DP2 pin is electrically connected to the USB D+ pin of the TYPE-A interface; the DM2 pin is electrically connected to the USB The D-pin is electrically connected; the second OUT pin is electrically connected to the VBUS pin of the TYPE-A interface; the second GND pin is electrically connected to the GND pin of the TYPE-A interface.

[0012] Optionally, the TYPE-C interface is a 24-pin TYPE-C interface, and the TYPE-A interface is a 9-pin TYPE-A interface.

[0013] The beneficial effects of the embodiments of the present application are as follows: the USB3.0 connector is electrically connected to the USB3.0 HUB chip, the USB3.0 HUB chip is electrically connected to the TYPE-C interface and the TYPE-A interface respectively to realize the data transmission function, and the MPQ control chip is electrically connected to the TYPE-C interface and the TYPE-A interface respectively to realize the fast charging function. The fast data transmission and fast charging functions of the on-board charger are realized by the TYPE-C interface and the TYPE-A interface with USB3.0 data transmission and dual-port 15W charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0015] Figure 1 is a schematic diagram of a vehicle charger provided by an embodiment of the utility model;

[0016] Figure 2It is a front view of the vehicle charger provided by the embodiment of the utility model;

[0017] Figure 3 It is a rear view of the vehicle charger provided by the embodiment of the utility model;

[0018] Figure 4 It is a side view of the vehicle charger provided by the embodiment of the utility model;

[0019] Figure 5 is a top view of the vehicle charger provided by an embodiment of the utility model;

[0020] Figure 6 It is a schematic diagram of a circuit board provided by an embodiment of the utility model;

[0021] Figure 7 It is a schematic diagram of a circuit board circuit provided by an embodiment of the utility model;

[0022] Reference numerals:

[0023] 100. Car charger;

[0024] 110, Panel;

[0025] 120, circuit board; 121, vehicle computer; 122, USB connection module; 123, USB management module; 124, power module; 125, power conversion module; 126, charging management module; 127, USB interface;

[0026] 130. Shell. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by technicians in the technical field of the utility model. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the utility model.

[0029] See also Figures 1 to 6The vehicle charger 100 includes a panel 110, a circuit board 120 and a shell 130. The circuit board 120 is accommodated in the shell 130. The panel 110 is connected to the shell 130. The circuit board 120 includes a vehicle machine 121, a USB connection module 122, a USB management module 123, a power module 124, a power conversion module 125, a charging management module 126 and a USB interface 127.

[0030] Among them, see Figure 2 , Figure 2 It is a front view of the vehicle charger. The panel 110 is provided with a first through hole and a second through hole, and white symbols are printed on the panel 110. The USB interface 127 includes a TYPE-C interface and a TYPE-A interface. The TYPE-C interface is arranged in the first through hole, and the circuit TYPE-A interface is arranged in the second through hole. The USB management module 123 and the charging management module 126 are electrically connected to the TYPE-C interface of the USB interface 127, respectively. The USB management module 123 and the charging management module 126 are electrically connected to the TYPE-A interface of the USB interface 127, respectively. The USB connection module 122 is connected to the vehicle computer 121.

[0031] The USB connection module 122 is electrically connected to the USB management module 123, and the USB management module 123 is electrically connected to the TYPE-C interface and the TYPE-A interface respectively to realize the data transmission function; the charging management module 126 is electrically connected to the TYPE-C interface and the TYPE-A interface respectively to realize the fast charging function.

[0032] See also Figure 7 , Figure 7 Schematic diagram of the circuit structure of the circuit board 120. For the above-mentioned USB connection module 122, in this embodiment, the USB connection module 122 is a USB3.0 connector, which is an interface for data transmission and charging with external devices. It is connected to other circuits by connecting to a USB3.0 HUB chip.

[0033] Regarding the above-mentioned USB management module 123, in this embodiment, the USB management module 123 is a USB3.0 HUB chip, the specific model is USB3.0 HUB VL817S, which is a key component connecting the USB3.0 connector, TYPE-C interface and TYPE-A interface, and is mainly used to manage data transmission and charging functions, and transmit data and power signals to the corresponding interfaces.

[0034] Regarding the above-mentioned power module 124, in this embodiment, the power module 124 is an ACC power supply, specifically a 24V DC power supply.

[0035] Regarding the above-mentioned power conversion module 125, in this embodiment, the power conversion module 125 is a DC-DC converter, specifically a model MP9928, which is used to convert the 24V DC power of the vehicle into a voltage suitable for the operation of the USB charger.

[0036] For the above-mentioned charging management module 126, in this embodiment, the charging management module 126 is an MPQ chip, specifically MPQ4252, which is a charging protection and fast control chip connected to the TYPE-C interface and the TYPE-A interface, and is used to monitor parameters such as charging current, voltage and temperature, and provide appropriate charging protection and fast charging control.

[0037] Regarding the above-mentioned USB interface 127, in this embodiment, the USB interface 127 includes a TYPE-C interface and a TYPE-A interface, the TYPE-C interface is specifically a 24-pin TYPE-C interface, and the TYPE-A interface is specifically a 9-pin TYPE-A interface.

[0038] In some embodiments, the ACC power supply is electrically connected to a DC-DC converter, and the DC-DC converter is electrically connected to an MPQ control chip. The power supply of the ACC power supply is controlled by an ACC signal, the DC-DC converter converts the 24V ACC power supply into a voltage suitable for the charger, and the MPQ control chip performs charging protection and fast charging control.

[0039] In some embodiments, the above-mentioned on-board charger also includes a filter, a TVS tube and an anti-reverse connection diode. The MPQ control chip is provided with a VDD pin, and the DC-DC converter is electrically connected to the VDD pin through the filter, the TVS tube and the anti-reverse connection diode. The TVS tube, also known as a transient voltage suppressor, is a semiconductor protection device used to protect electronic equipment from transient excessive voltage and current shocks. The anti-reverse connection diode is an important protection element, also known as a reverse polarity protection diode, which has the characteristics of unidirectional conduction, low forward voltage drop, and fast conduction. The VDD pin is a power supply pin. It can be understood that after the DC-DC converter converts the 24V ACC power supply to 12V, the voltage harmonics and noise are eliminated by connecting the filter to ensure the stability and reliability of the power supply system, and then the TVS tube is used to make the circuit work normally. When subjected to a high-energy instantaneous overvoltage pulse, its working impedance can be immediately reduced to a very low conduction value, allowing large current to pass through and clamping the voltage to a predetermined level, thereby effectively protecting the precision components in the electronic circuit from damage, and then the anti-reverse diode is used to prevent the circuit from being damaged when the DC power supply is reversed, thereby protecting the charger circuit.

[0040] In some embodiments, the USB 3.0 connector includes a DM pin, a DP pin, an RX+ pin, a TX+ pin, an RX- pin, a TX- pin, and a GND pin, and the USB 3.0 HUB chip includes a DM pin, a DP pin, an RX0+ pin, a TX0+ pin, an RX0- pin, a TX0- pin, and a GND pin;

[0041] The DM pin of the USB 3.0 connector is electrically connected to the DM pin of the USB 3.0 HUB chip;

[0042] The DP pin of the USB 3.0 connector is electrically connected to the DP pin of the USB 3.0 HUB chip;

[0043] The RX+ pin is electrically connected to the RX0+ pin;

[0044] The TX+ pin is electrically connected to the TX0+ pin;

[0045] The RX- pin is electrically connected to the RX0- pin;

[0046] The TX- pin is electrically connected to the TX0- pin;

[0047] The GND pin of the USB 3.0 connector is electrically connected to the GND pin of the USB 3.0 HUB chip.

[0048] Among them, the DM and DP pins represent USB3.0 differential signals, the RX+ pin represents the positive pole of the USB3.0 receiving signal, the RX0+ pin represents the first RX+ pin of the USB3.0 HUB chip, the RX- pin represents the negative pole of the USB3.0 receiving signal, the RX0- pin represents the first RX- pin of the USB3.0 HUB chip, the TX+ pin represents the positive pole of the USB3.0 transmitting signal, the TX0+ pin represents the first TX+ pin of the USB3.0 HUB chip, the TX- pin represents the negative pole of the USB3.0 transmitting signal, the TX0- pin represents the first TX- pin of the USB3.0 HUB chip, and the GDN pin represents the transmitting signal to the ground wire.

[0049] It can be understood that, by electrically connecting the pins of the USB 3.0 connector to the pins of the USB 3.0 HUB chip, multiple data transmission and charging functions can be realized, that is, the USB interface can be expanded into multiple (such as Figure 3 As shown, a TYPE-C interface and a TYPE-A interface), and multiple interfaces can be used simultaneously.

[0050] In some embodiments, the USB3.0 HUB chip further includes an RX1+ pin, an RX1- pin, a TX1+ pin, a TX1- pin, an RX2+ pin, an RX2- pin, a TX2+ pin, and a TX2- pin, the TYPE-C interface includes an RX+ pin, an RX- pin, a TX+ pin, and a TX- pin, and the TYPE-A interface includes an RX+ pin, an RX- pin, a TX+ pin, and a TX- pin;

[0051] The RX1+ pin is electrically connected to the RX+ pin of the TYPE-C interface;

[0052] The RX1-pin is electrically connected to the RX-pin of the TYPE-C interface;

[0053] The TX1+ pin is electrically connected to the TX+ pin of the TYPE-C interface;

[0054] The TX1-pin is electrically connected to the TX-pin of the TYPE-C interface;

[0055] The RX2+ pin is electrically connected to the RX+ pin of the TYPE-A interface;

[0056] The RX2-pin is electrically connected to the RX-pin of the TYPE-A interface;

[0057] The TX2+ pin is electrically connected to the TX+ pin of the TYPE-A interface;

[0058] The TX2-pin is electrically connected to the TX-pin of the TYPE-A interface.

[0059] Among them, the RX1+ pin represents the second RX+ pin of the USB3.0 HUB chip, and the RX1- pin represents the second RX- pin of the USB3.0 HUB chip; the TX1+ pin represents the second TX+ pin of the USB3.0 HUB chip, and the TX1- pin represents the second TX- pin of the USB3.0 HUB chip; the RX2+ pin represents the third RX+ pin of the USB3.0 HUB chip, and the RX2- pin represents the third RX- pin of the USB3.0 HUB chip; the TX2+ pin represents the third TX+ pin of the USB3.0 HUB chip, and the TX2- pin represents the third TX- pin of the USB3.0 HUB chip.

[0060] It can be understood that the above-mentioned USB connector realizes the data transmission function through the corresponding electrical connection between the various pins of the USB3.0 chip and the various pins of the TYPE-C interface and the TYPE-A interface. That is, when an external device (such as a mobile phone or tablet computer) is connected to the charger through the TYPE-C interface or the TYPE-A interface, the USB3.0 chip will automatically identify the device and enable the corresponding data transmission function, thereby realizing the high-speed USB3.0 data transmission function of the TYPE-C interface and the TYPE-A interface.

[0061] In some embodiments, the MPQ control chip includes a DP1 pin, a DM1 pin, a first OUT pin, a first GND pin, a DP2 pin, a DM2 pin, a second OUT pin, and a second GND pin, the TYPE-C interface also includes a USB D+ pin, a USB D- pin, a VBUS pin, and a GND pin, and the TYPE-A interface also includes a USB D+ pin, a USB D- pin, a VBUS pin, and a GND pin;

[0062] The DP1 pin is electrically connected to the USB D+ pin of the TYPE-C interface;

[0063] The DM1 pin is electrically connected to the USB D-pin of the TYPE-C interface;

[0064] The first OUT pin is electrically connected to the VBUS pin of the TYPE-C interface;

[0065] The first GND pin is electrically connected to the GND pin of the TYPE-C interface;

[0066] The DP2 pin is electrically connected to the USB D+ pin of the TYPE-A interface;

[0067] The DM2 pin is electrically connected to the USB D-pin of the TYPE-A interface;

[0068] The second OUT pin is electrically connected to the VBUS pin of the TYPE-A interface;

[0069] The second GND pin is electrically connected to the GND pin of the TYPE-A interface.

[0070] Among them, the DP1 pin and the DM1 pin represent the first set of USB3.0 differential signals, and the DP2 pin and the DM2 pin represent the second set of USB3.0 differential signals; the OUT pin is used for power output; the VBUS pin is used to connect two TYPE-C or TYPE-A devices so that one device can power another device; the USB D+ pin represents the positive data pole, which is used to transmit data, and the USB D- pin represents the negative data pole, which is used to transmit data.

[0071] It can be understood that the fast charging function is achieved through the electrical connection of the above-mentioned 24V ACC power supply, DC-DC converter and MPQ control chip, and the corresponding electrical connection of each pin of the MPQ control chip with each pin of the TYPE-C interface and the TYPE-A interface, that is, the MPQ control chip can monitor the current, voltage, temperature and other parameters of the device connected to the TYPE-C interface and the TYPE-A interface. According to the needs of the device, the MPQ control chip will control the charger to output appropriate current and voltage to achieve fast charging, thereby shortening the charging time. In addition, the MPQ control chip is also responsible for monitoring the safety of the charging process to ensure that the maximum tolerance of the device is not exceeded or safety problems are caused during the charging process. If an abnormal situation is detected, the MPQ control chip will take corresponding protection measures, such as reducing the charging power, disconnecting the power supply, etc., to ensure the safety of the equipment and the vehicle.

[0072] It should be noted that when the car charger is working, the DC-DC converter converts the vehicle's 24V voltage into a voltage suitable for the charger to work. The MPQ control chip controls the charger to output appropriate current and voltage (for example, 5V voltage and 3A current) by electrically connecting with the DC-DC converter, TYPE-C interface and TYPE-A interface to achieve the 15W fast charging function of the TYPE-C interface and TYPE-A interface. In addition, the USB3.0 connector is electrically connected with the TYPE-C interface and TYPE-A interface through the USB3.0HUB chip to achieve the USB3.0 data transmission function of the TYPE-C interface and TYPE-A interface, so that the TYPE-C interface and TYPE-A interface of the car charger have USB3.0 data transmission function, and at the same time have dual 15W fast charging function to meet the various needs of customers and improve the customer's experience.

[0073] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A vehicle charger, comprising a panel, a circuit board and a shell, wherein the circuit board is accommodated in the shell, and the panel is connected to the shell, characterized in that: The panel is provided with a first through hole and a second through hole, the TYPE-C interface of the circuit board is arranged in the first through hole, and the TYPE-A interface of the circuit board is arranged in the second through hole; The circuit board also includes a USB3.0 HUB chip, an MPQ control chip and a USB3.0 connector. The USB3.0 HUB chip and the MPQ control chip are electrically connected to the TYPE-C interface respectively, and the USB3.0 HUB chip and the MPQ control chip are electrically connected to the TYPE-A interface respectively. The USB3.0 connector is used to connect to the vehicle computer. The USB3.0 connector is electrically connected to the USB3.0 HUB chip, and the USB3.0 HUB chip is electrically connected to the TYPE-C interface and the TYPE-A interface respectively to realize a data transmission function; The MPQ control chip is electrically connected to the TYPE-C interface and the TYPE-A interface respectively to achieve a fast charging function.

2. The vehicle charger according to claim 1, characterized in that: The circuit board also includes: an ACC power supply and a DC-DC converter; The ACC power supply is electrically connected to the DC-DC converter; The DC-DC converter is electrically connected to the MPQ control chip.

3. The vehicle charger according to claim 2, characterized in that: The ACC power supply is a 24V DC power supply.

4. The vehicle charger according to claim 2, characterized in that: The on-board charger also includes a filter and a TVS tube, and the MPQ control chip is provided with a VDD pin; The DC-DC converter is electrically connected to the VDD pin through the filter and the TVS tube.

5. The vehicle charger according to claim 1, characterized in that: The USB3.0 connector includes a DM pin, a DP pin, an RX+ pin, a TX+ pin, an RX- pin, a TX- pin and a GND pin, and the USB3.0 HUB chip includes a DM pin, a DP pin, an RX0+ pin, a TX0+ pin, an RX0- pin, a TX0- pin and a GND pin; The DM pin of the USB 3.0 connector is electrically connected to the DM pin of the USB 3.0 HUB chip; The DP pin of the USB 3.0 connector is electrically connected to the DP pin of the USB 3.0 HUB chip; The RX+ pin is electrically connected to the RX0+ pin; The TX+ pin is electrically connected to the TX0+ pin; The RX- pin is electrically connected to the RX0- pin; The TX- pin is electrically connected to the TX0- pin; The GND pin of the USB 3.0 connector is electrically connected to the GND pin of the USB 3.0 HUB chip.

6. The vehicle charger according to claim 1, characterized in that: The USB3.0 HUB chip also includes an RX1+ pin, an RX1- pin, a TX1+ pin, a TX1- pin, an RX2+ pin, an RX2- pin, a TX2+ pin and a TX2- pin, the TYPE-C interface includes an RX+ pin, an RX- pin, a TX+ pin and a TX- pin, and the TYPE-A interface includes an RX+ pin, an RX- pin, a TX+ pin and a TX- pin; The RX1+ pin is electrically connected to the RX+ pin of the TYPE-C interface; The RX1-pin is electrically connected to the RX-pin of the TYPE-C interface; The TX1+ pin is electrically connected to the TX+ pin of the TYPE-C interface; The TX1-pin is electrically connected to the TX-pin of the TYPE-C interface; The RX2+ pin is electrically connected to the RX+ pin of the TYPE-A interface; The RX2-pin is electrically connected to the RX-pin of the TYPE-A interface; The TX2+ pin is electrically connected to the TX+ pin of the TYPE-A interface; The TX2-pin is electrically connected to the TX-pin of the TYPE-A interface.

7. The vehicle charger according to claim 1, characterized in that: The MPQ control chip includes a DP1 pin, a DM1 pin, a first OUT pin, a first GND pin, a DP2 pin, a DM2 pin, a second OUT pin and a second GND pin, the TYPE-C interface also includes a USB D+ pin, a USB D- pin, a VBUS pin and a GND pin, and the TYPE-A interface also includes a USB D+ pin, a USB D- pin, a VBUS pin and a GND pin; The DP1 pin is electrically connected to the USB D+ pin of the TYPE-C interface; The DM1 pin is electrically connected to the USB D-pin of the TYPE-C interface; The first OUT pin is electrically connected to the VBUS pin of the TYPE-C interface; The first GND pin is electrically connected to the GND pin of the TYPE-C interface; The DP2 pin is electrically connected to the USB D+ pin of the TYPE-A interface; The DM2 pin is electrically connected to the USB D-pin of the TYPE-A interface; The second OUT pin is electrically connected to the VBUS pin of the TYPE-A interface; The second GND pin is electrically connected to the GND pin of the TYPE-A interface.

8. The vehicle charger according to claim 1, characterized in that: The TYPE-C interface is a 24-pin TYPE-C interface, and the TYPE-A interface is a 9-pin TYPE-A interface.

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