New energy high-voltage connector wire harness

Abstract

The utility model discloses a new energy high-voltage connector wire harness, which comprises a charging cable, an insulating plastic shell, a PCB (Printed Circuit Board), a main control chip, a triode Q2, a Type-C male socket connector and touch inductive switches, and is characterized in that the touch inductive switches are respectively arranged on the upper end wall and the lower end wall of the insulating plastic shell; the touch sensing switch is respectively and electrically connected with a PA5 pin and a PA6 pin of the main control chip, the PCB is provided with a 5V power supply terminal, a VDD pin of the main control chip is electrically connected with the 5V power supply terminal, a GND pin of the main control chip is electrically connected with the ground, the 5V power supply terminal is electrically connected with a collector electrode of the triode Q2, a PA4 pin of the main control chip is electrically connected with a base electrode of the triode Q2, and the base electrode of the triode Q2 is electrically connected with the base electrode of the triode Q2. And the emitting electrode of the triode Q2 is electrically connected with the CC pin of the Type-C male seat connector. According to the technical scheme of the utility model, the occurrence of a high-voltage sparking phenomenon caused by heating friction in the pulling-out process of the Type-C male socket connector can be effectively prevented, and the use safety of the high-voltage connector wire harness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of Type-C charging cables, and in particular to a new energy high-voltage connector harness. Background Art

[0002] Compared with the traditional micro interface, the Type-C interface has the advantages of not distinguishing between the front and back sides, being able to pass 5A current, and achieving fast charging, so Type-C has gradually become the standard configuration of many mobile phones.

[0003] However, the Type-C charging cable also has many shortcomings. For example, during the plugging and unplugging process of the Type-C male connector and the female connector, the high-voltage charging of the laptop device may cause the contact pins of the Type-C connector to generate sparks during the friction process, burning the Type-C male connector and the female connector. Utility Model Content

[0004] The main purpose of the utility model is to propose a new energy high-voltage connector harness, which aims to solve the technical problem that high-voltage sparks are prone to occur during the plugging and unplugging of the male connector and the female connector of the existing Type-C charging cable, resulting in the burning of the Type-C connector.

[0005] To achieve the above-mentioned purpose, the new energy high-voltage connector harness proposed in the utility model includes a charging cable, an insulating plastic shell, a PCB board, a main control chip, a transistor Q2, a Type-C male connector and a touch sensing switch. The rear end of the insulating plastic shell is provided with a through hole, one end of the charging cable is embedded in the through hole, the other end of the charging cable is electrically connected to the power adapter, the PCB board is arranged in the insulating plastic shell, the main control chip and the transistor Q2 are arranged on the PCB board, the Type-C male connector is arranged at the front end of the insulating plastic shell, the charging cable and the Type-C male connector are electrically connected to the PCB board respectively, and the touch sensing switch is respectively arranged on the insulating On the upper end wall and the lower end wall of the plastic shell, the touch sensing switch is electrically connected to the PA5 pin and the PA6 pin of the main control chip respectively, the PCB board is provided with a 5V power supply terminal, the VDD pin of the main control chip is electrically connected to the 5V power supply terminal, the GND pin of the main control chip is electrically connected to the ground, the 5V power supply terminal is electrically connected to the collector of the transistor Q2, the PA4 pin of the main control chip is electrically connected to the base of the transistor Q2, the emitter of the transistor Q2 is electrically connected to the CC pin of the Type-C male connector, and the PCB board is provided with a 60V high-voltage output terminal, and the 60V high-voltage output terminal is electrically connected to the VBUU pin and the VBUS pin of the Type-C male connector respectively.

[0006] Optionally, a temperature sensor is also included, which is arranged at the rear end of the Type-C male connector. A plurality of pin needles are provided in the Type-C male connector. The temperature sensor abuts against the rear end of the pin needle. The temperature sensor is electrically connected to the PA3 pin of the main control chip.

[0007] Optionally, the temperature sensor is an NTC temperature sensor.

[0008] Optionally, the main control chip adopts a PMS161-U06A chip.

[0009] The technical solution of the utility model has the following beneficial effects: the technical solution of the utility model, through the touch sensing switch respectively arranged on the upper end wall and the lower end wall of the insulating plastic shell, the touch sensing switch is respectively electrically connected to the PA5 pin and the PA6 pin of the main control chip, the PCB board is provided with a 5V power supply terminal, the VDD pin of the main control chip is electrically connected to the 5V power supply terminal, the GND pin of the main control chip is electrically connected to the earth, the 5V power supply terminal is electrically connected to the collector of the transistor Q2, the PA4 pin of the main control chip is electrically connected to the base of the transistor Q2, the emitter of the transistor Q2 is electrically connected to the CC pin of the Type-C male connector, the PCB board is provided with a 60V high-voltage output terminal, the 60V high-voltage output terminal is respectively electrically connected to the VBUU pin and the VBUS pin of the Type-C male connector, when the user touches the touch sensing switch of the insulating plastic shell with a finger, the main control chip determines that the Type-C male connector is about to be plugged in and out, and the main control chip cuts off The PD handshake protocol between the power adapter and the charging device turns off the 60V high voltage output to the Type-C male connector. After a delay, after waiting for the Type-C male connector to be inserted into the Type-C female connector, the main control chip resumes the PD handshake protocol between the power adapter and the charging device, and converts the 5V low voltage to the 60V high voltage to the Type- female connector of the charging device. When the Type-C male connector is unplugged from the charging device, the finger will touch the touch-sensitive switch on the upper and lower end walls of the insulating plastic shell. The main control chip first cuts off the PD handshake protocol between the power adapter and the charging device, turns off the 60V high voltage output, and switches to 5V low-voltage charging, waiting for the Type-C male connector to be unplugged. The action is completed, thereby effectively preventing the Type-C male connector from being unplugged due to the pin of the Type-C male connector being in high-voltage conduction, heating and friction, and causing high-voltage sparks, thereby improving the safety of the Type-C charging cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0011] Figure 1 This is a schematic diagram of the overall structure of a new energy high-voltage connector harness according to an embodiment of the utility model;

[0012] Figure 2 This is a schematic diagram of the exploded structure of a new energy high-voltage connector harness according to an embodiment of the utility model;

[0013] Figure 3 The circuit principle of a new energy high voltage connector harness according to an embodiment of the utility model Figure 1 ;

[0014] Figure 4 The circuit principle of a new energy high voltage connector harness according to an embodiment of the utility model Figure 2 ;

[0015] Figure 5 The circuit principle of a new energy high voltage connector harness according to an embodiment of the utility model Figure 3 .

[0016] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0019] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0020] The utility model provides a new energy high-voltage connector harness.

[0021] like Figures 1 to 5 As shown, in one embodiment of the utility model, the new energy high-voltage connector harness includes a charging cable 101, an insulating plastic shell 102, a PCB board 103, a main control chip 104, a transistor Q2, a Type-C male connector 105 and a touch sensing switch (not shown). The rear end of the insulating plastic shell 102 is provided with a through hole 1021, one end of the charging cable 101 is embedded in the through hole 1021, and the other end of the charging cable 101 is electrically connected to the power adapter. The PCB board 103 is arranged in the insulating plastic shell 101, the main control chip 104 and the transistor Q2 are arranged on the PCB board 103, and the Type-C male connector 105 is arranged at the front end of the insulating plastic shell 102. The charging cable 101 and the Type-C male connector 105 are electrically connected to the PCB board 103 respectively. The touch switches are respectively arranged on the upper end wall and the lower end wall of the insulating plastic shell 102, and the touch sensing switches are respectively electrically connected to the PA5 pin and the PA6 pin of the main control chip 104. The PCB board 103 is provided with a 5V power supply terminal 1031, the VDD pin of the main control chip 104 is electrically connected to the 5V power supply terminal 1031, the GND pin of the main control chip 104 is electrically connected to the ground, the 5V power supply terminal 1031 is electrically connected to the collector of the transistor Q2, the PA4 pin of the main control chip 104 is electrically connected to the base of the transistor Q2, and the emitter of the transistor Q2 is electrically connected to the CC pin of the Type-C male connector 105. The PCB board 103 is provided with a 60V high-voltage output terminal 1032, and the 60V high-voltage output terminal 1032 is respectively electrically connected to the VBUU pin and the VBUS pin of the Type-C male connector 105.

[0022] Specifically, it also includes a temperature sensor (not shown), which is arranged at the rear end of the Type-C male connector 105. A plurality of pin needles 1051 are arranged in the Type-C male connector 105. The temperature sensor abuts against the rear end of the pin needle 1051. The temperature sensor is electrically connected to the PA3 pin of the main control chip 104. The temperature of the pin needle of the Type-C male connector is detected in real time by the temperature sensor. When the temperature is detected to be higher than the threshold, the main control chip cuts off the PD handshake protocol between the power adapter and the charging device, turns off the 60V high voltage output, and switches to 5V low voltage charging. When the temperature is detected to be lower than the threshold, the main control chip restores the PD handshake protocol between the power adapter and the charging device, and switches from the 5V low voltage to the 60V high voltage to the Type- female connector of the charging device, thereby playing a role of over-temperature protection and further improving the safety of the Type-C charging cable.

[0023] Specifically, the temperature sensor adopts an NTC temperature sensor.

[0024] Specifically, the main control chip 104 adopts a PMS161-U06A chip.

[0025] Specifically, the working principle and use process of the utility model are as follows:

[0026] 1. When you pinch the Type-C male connector with your fingers and insert it into the charging device, your fingers will touch the touch-sensitive switches on the upper and lower walls of the insulating plastic shell and send signals to the main control chip, which recognizes that the Type-C male connector has been inserted. The PA4 pin of the main control chip outputs a 5V high voltage to the Type-C male connector, and the PA4 pin of the main control chip outputs a 5V voltage to the transistor Q2. The main control chip cuts off the PD handshake protocol between the power adapter and the charging device, and turns off the 60V high voltage output to the Type-C male connector. After a delay, After the Type-C male connector is inserted into the Type-C female connector, when the main control chip detects that the touch process is over, the PA4 pin of the main control chip outputs a low voltage of 0V to transistor Q2, and the main control chip restores the PD handshake protocol between the power adapter and the charging device, converting the low voltage of 5V to a high voltage of 60V to the Type-C female connector of the charging device. After the charging adapter and the charging device complete the handshake protocol, the 20V / 24V / 36V / 48V / 60V voltage of the power adapter can be output to the charging device by the control circuit of the Type-C charging cable;

[0027] 2. When the Type-C male connector is unplugged from the charging device, the finger will touch the touch-sensitive switch on the upper and lower end walls of the insulating plastic shell and send a signal to the main control chip. The main control chip detects that the Type-C male connector is about to be unplugged, and the PA4 pin of the main control chip outputs a 5V high voltage to the transistor Q2. The main control chip first cuts off the PD handshake protocol between the power adapter and the charging device, turns off the 60V high-voltage output, and switches to 5V low-voltage charging, waiting for the Type-C male connector to be unplugged. This effectively prevents the occurrence of high-voltage sparks caused by the pin of the Type-C male connector being in high-voltage conduction and heat friction during the unplugging process of the Type-C male connector, thereby improving the safety of the Type-C charging cable.

[0028] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A new energy high voltage connector harness, characterized in that: The invention comprises a charging cable, an insulating plastic shell, a PCB board, a main control chip, a transistor Q2, a Type-C male connector and a touch sensing switch. The rear end of the insulating plastic shell is provided with a through hole, one end of the charging cable is embedded in the through hole, the other end of the charging cable is electrically connected to the power adapter, the PCB board is arranged in the insulating plastic shell, the main control chip and the transistor Q2 are arranged on the PCB board, the Type-C male connector is arranged at the front end of the insulating plastic shell, the charging cable and the Type-C male connector are electrically connected to the PCB board respectively, and the touch sensing switch is respectively arranged on the upper end wall and the lower end wall of the insulating plastic shell. The touch sensing switch is electrically connected to the PA5 pin and the PA6 pin of the main control chip respectively, the PCB board is provided with a 5V power supply terminal, the VDD pin of the main control chip is electrically connected to the 5V power supply terminal, the GND pin of the main control chip is electrically connected to the ground, the 5V power supply terminal is electrically connected to the collector of the transistor Q2, the PA4 pin of the main control chip is electrically connected to the base of the transistor Q2, the emitter of the transistor Q2 is electrically connected to the CC pin of the Type-C male connector, and the PCB board is provided with a 60V high-voltage output terminal, and the 60V high-voltage output terminal is electrically connected to the VBUU pin and the VBUS pin of the Type-C male connector respectively.

2. The new energy high voltage connector harness according to claim 1 is characterized in that: It also includes a temperature sensor, which is arranged at the rear end of the Type-C male connector. A plurality of pins are arranged in the Type-C male connector. The temperature sensor abuts against the rear end of the pin. The temperature sensor is electrically connected to the PA3 pin of the main control chip.

3. The new energy high voltage connector harness according to claim 2 is characterized in that: The temperature sensor is an NTC temperature sensor.

4. The new energy high voltage connector harness according to claim 1, characterized in that: The main control chip adopts PMS161-U06A chip.

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