Intelligent charging wire

Abstract

The utility model discloses an intelligent charging line which comprises a power supply end plug, a battery end plug, a charging line connecting the power supply end plug and the battery end plug, and a management platform, and temperature measuring modules are arranged in the power supply end plug and the battery end plug to detect a power supply end in real time. A power adapter and a signal processing transmission module are sequentially arranged on the charging line between the power end plug and the battery end plug, and a voltage transformation module is arranged in the power adapter and used for converting the voltage of a power supply into the power supply voltage of the signal processing transmission module; the signal processing and transmitting module processes the electric signals collected by the temperature measuring module and uploads the electric signals to the management platform. The temperature measuring modules are arranged in the power end plug and the battery end plug so as to detect the temperature in real time, the collected temperature is sent to a management platform through the signal processing and transmitting module, and meanwhile the position of a vehicle is positioned in real time through the positioning module; when the temperature of the charging wire is too high during charging of the electric bicycle, an alarm can be given through the management platform.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle charging, and in particular relates to an intelligent charging cable. Background Art

[0002] In recent years, electric bicycles have become a means of transportation for urban and rural residents to travel short distances due to their economic, convenient and environmentally friendly features. There are currently about 250 million electric bicycles in the society. At the same time, electric bicycle fires occur from time to time, and the number of fires, casualties and property losses caused by them are increasing year by year. According to statistics on electric bicycle fires investigated across the country, more than 90% of fires were caused by abnormal temperature rise caused by electric vehicle batteries, and more than 80% of fires occurred during charging, resulting in many fatal accidents.

[0003] Electric vehicle chargers are charging devices specially configured for electric vehicle batteries. Short circuits, overloads, and overcharging of electric vehicle batteries are the main causes of fires during the charging process of electric bicycles. Since the terminal battery heats up during charging and is not detected, it is easy to cause fire accidents. Once an electric vehicle catches fire, the temperature will reach 200°C 90 seconds after the fire. The fire will develop rapidly in an instant. In addition, when the materials of electric vehicles burn, they will produce highly toxic gases such as carbon monoxide, which seriously endangers people's health. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide a smart charging cable to solve the problem of not being able to detect the heating of the terminal battery in time. To achieve this purpose, the specific technical solution of this application is as follows:

[0005] The intelligent charging cable comprises a power end plug, a battery end plug, a charging cable connecting the power end plug and the battery end plug, and a management platform. The power end plug and the battery end plug are both provided with temperature measuring modules to detect the temperature of the charging cable in real time, and a power adapter and a signal processing and transmission module are sequentially provided on the charging cable between the power end plug and the battery end plug. The power adapter is provided with a transformer module to convert the voltage of the power supply into the power supply voltage of the signal processing and transmission module; the signal processing and transmission module processes the electrical signal collected by the temperature measuring module and uploads it to the management platform through the wireless transmission module.

[0006] Furthermore, the temperature measurement module includes a temperature sensor.

[0007] Furthermore, the temperature sensor is bound to a metal sheet inside the power terminal plug and / or the battery terminal plug.

[0008] Further, the voltage transformation module includes a voltage transformation processing chip, and the pin 1 and the pin 8 of the voltage transformation processing chip are connected in parallel with the capacitor C2, the resistor R1, and the capacitor C1 in turn, and then connected to the positive pole of the power supply of the power supply end plug, the other end of the capacitor C1 is connected to the negative pole of the power supply of the power supply end plug and then grounded, the other end of the capacitor C2 is grounded, the other end of the resistor R1 is connected in parallel with the pin 2 of the voltage transformation processing chip and the diode Z3, the output end of the diode Z3 is connected to the resistor R6, the capacitor C5 and the capacitor C6, and then connected to the positive input end of the signal processing transmission module, the other end of the resistor R6 is connected to the positive input end of the signal processing transmission module, and the other end of the resistor R6 is connected to the positive input end of the signal processing transmission module. One end is connected to the negative input end of the signal processing and transmission module; pin 2 of the parallel transformer processing chip is also connected in parallel with capacitor C3 and diode Z1, the other end of diode Z1 is connected to the other end of diode Z1 and then connected to resistor R2 and then connected to pin 4, connected to resistor R5 and then connected to pin 3, connected to capacitor C4 and then connected to pin 5, connected to pin 6, connected to resistor R5 and inductor L1 in parallel, the output end of inductor L1 is connected to the output end of diode Z3, the other end of resistor R5 is connected in parallel with pin 7 and diode Z2, and the other end of diode Z2 is grounded.

[0009] Furthermore, the signal processing and transmission module includes a transistor U1, the positive input end of the transistor U1 is connected to the output end of the transformer module; the negative input end of the transistor U1 is connected to the thermistor RT; and the output end of the transistor U1 is a digital processing chip, which is connected to the wireless transmission module.

[0010] Furthermore, the wireless transmission module is a 4G, 5G or NB module, including a positioning chip.

[0011] Furthermore, the positioning chip is a GPS or Beidou positioning chip.

[0012] Compared with the prior art, the utility model has the following advantages: the transformer module of the present application performs secondary transformation in the original electric vehicle charging line transformer box, transforming the 8V~90V high voltage into a 5V low voltage to power the signal processing and transmission module; by arranging temperature measurement modules in both the power end plug and the battery end plug to detect the temperature in the power end plug and the battery end plug in real time, and sending the collected temperature to the management platform through the wireless transmission module, and locating the position of the vehicle in real time through the positioning module, when the temperature of the charging line of the electric bicycle is too high and the current in the charging line is unstable during charging, the management platform can alarm and remind the owner so that the line can be disconnected in time, avoiding fire when the electric bicycle is charging, resulting in casualties and property losses, and timely discovering fire hazards to avoid casualties and property losses caused by fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2This is the circuit diagram of the voltage conversion module of the utility model;

[0015] Figure 3 This is a circuit diagram of the power adapter of the utility model;

[0016] Figure 4 This is a circuit diagram of a voltage conversion module in a specific embodiment of the utility model.

[0017] In the figure: 1-power end plug, 2-charging cable, 3-battery end plug, 4-power adapter, 5-signal processing and transmission module, 6-voltage conversion processing chip, 7-digital processing chip, 8-wireless transmission module, 9-management platform. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the present invention is further described below in conjunction with the accompanying drawings.

[0019] like Figure 1-Figure 3 As shown, a smart charging cable includes a power supply plug 1, a battery plug 3, a charging cable 2 connecting the power supply plug 1 and the battery plug 3, and a management platform 9. The power supply plug 1 and the battery plug 3 are both provided with temperature measurement modules to detect the temperature of the charging cable in real time, and a power adapter 4 and a signal processing and transmission module 5 are sequentially provided on the charging cable 2 between the power supply plug 1 and the battery plug 3. A transformer module is provided in the power adapter 4 to convert the voltage of the power supply into the supply voltage of the signal processing and transmission module 5; the signal processing and transmission module 5 processes the electrical signal collected by the temperature measurement module and uploads it to the management platform 9 through the wireless transmission module 8. Among them, the temperature measurement module includes a temperature sensor. In order to achieve more accurate temperature measurement, the temperature sensor is bound to the metal sheet in the power supply plug 1 and / or the battery plug 3.

[0020] It can be understood that the present application collects the temperature of the power plug 1 and the battery plug 3 in real time through the temperature sensor, and processes the collected temperature information through the signal processing and transmission module 5 and uploads it to the management platform 9 through the wireless transmission module 8. The management platform 9 observes the temperature data. If the temperature inside the power plug 1 and / or the battery plug 3 is too high, the management platform 9 can alarm the owner so that the line can be disconnected in time. The management platform 9 is a prior art, that is, a platform / display capable of displaying control data.

[0021] Continue reading Figure 2It can be seen that the voltage transformation module includes a voltage transformation processing chip 6, and the pin 1 and pin 8 of the voltage transformation processing chip 6 are connected in parallel with capacitor C2, resistor R1, and capacitor C1 in turn, and then connected to the positive pole of the power supply of the power supply end plug 1, the other end of the capacitor C1 is connected to the negative pole of the power supply of the power supply end plug 1 and then grounded, the other end of the capacitor C2 is grounded, the other end of the resistor R1 is connected in parallel with pin 2 of the voltage transformation processing chip 6 and diode Z3, the output end of the diode Z3 is connected to resistor R6, capacitor C5 and capacitor C6, and then connected to the positive input end of the signal processing transmission module 5, the resistor R6 The other end is connected to the negative input end of the signal processing and transmission module 5; the pin 2 of the parallel voltage transformation processing chip 6 is also connected in parallel with the capacitor C3 and the diode Z1, the other end of the diode Z1 is connected to the other end of the diode Z1, and then connected to the resistor R2 and then connected to the pin 4, connected to the resistor R5 and then connected to the pin 3, connected to the capacitor C4 and then connected to the pin 5, connected to the pin 6, connected to the resistor R5 and the inductor L1 in parallel, the output end of the inductor L1 is connected to the output end of the diode Z3, the other end of the resistor R5 is connected in parallel with the pin 7 and the diode Z2, and the other end of the diode Z2 is grounded. It can be seen that the voltage transformation module of this application performs secondary voltage transformation in the original electric vehicle charging line transformer box, transforming the 8-90V high voltage to the 5V low voltage, because the voltage required by the signal processing and transmission module 5 is 5V.

[0022] like Figure 4 In a specific embodiment shown, the voltage conversion module converts the voltage of 8-90V inputted at the power supply end into a 5V output voltage to provide power for the signal processing and transmission module 5. The voltage conversion processing chip is the chip PW2902; the capacitor C1 is 100µF, the capacitor C2 is 0.1µF, the capacitor C3 is 4.7µF, the capacitor C4 is 4.7µF, the capacitor C5 is 100µF, and the capacitor C6 is 0.1µF; the resistor R1 is 82KΩ, the resistor R2 is 5KΩ, the resistor R3 is 59KΩ, the resistor R4 is 59KΩ, the resistor R5 is 0.06Ω, and the resistor R6 is 3KΩ; the diode Z1 is 12, the diode Z2 is 12, and the diode Z3 is 4148; and the inductor L1 is 4.7µH.

[0023] Continue reading Figure 3It can be seen that the signal processing and transmission module 5 of the present application is a prior art and is common knowledge in the art. The signal processing and transmission module 5 includes a transistor U1, the positive input end of the transistor U1 is connected to the output end of the transformer module; the negative input end of the transistor U1 is connected to the thermistor RT; the output end of the transistor U1 is a digital processing chip 7. The digital processing chip 7 of the present application is connected to the wireless transmission module 8, which is a 4G, 5G or NB module. The digital processing chip 7 calculates and gives the temperature data to the wireless transmission module 8 (4G, 5G, NB module), and the wireless transmission module 8 uploads the data to the management platform. The wireless transmission module 8 also includes a positioning chip, which is a GPS or Beidou positioning chip for real-time positioning, and transmits the location information to the management platform 9 via satellite.

[0024] In summary, this application is a transformation and improvement of the basic charging cable. It uses existing mature technologies and products to transform ordinary charging cables into smart charging cables with temperature collection, data transmission, over-temperature alarm, and charging positioning, so as to promptly detect and resolve the fire hazard caused by abnormally high battery temperature during charging.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A smart charging cable, comprising a power end plug (1), a battery end plug (3) and a charging cable (2) connecting the power end plug (1) and the battery end plug (3), characterized in that: The invention also comprises a management platform (9), wherein the power supply end plug (1) and the battery end plug (3) are both provided with temperature measurement modules for real-time temperature detection, and a power adapter (4) and a signal processing and transmission module (5) are sequentially provided on the charging line (2) between the power supply end plug (1) and the battery end plug (3), wherein a transformer module is provided in the power supply adapter (4) for converting the voltage of the power supply into the supply voltage of the signal processing and transmission module (5); the signal processing and transmission module (5) processes the electrical signal collected by the temperature measurement module and uploads the signal to the management platform (9) via the wireless transmission module (8).

2. The smart charging cable according to claim 1, characterized in that: The temperature measurement module includes a temperature sensor.

3. The smart charging cable according to claim 2, characterized in that: The temperature sensor is bound to a metal sheet inside the power terminal plug (1) and / or the battery terminal plug (3).

4. The smart charging cable according to claim 2, characterized in that: The voltage conversion module comprises a voltage conversion processing chip (6), wherein pin 1 and pin 8 of the voltage conversion processing chip (6) are connected in parallel with a capacitor C2, a resistor R1, and a capacitor C1, and then connected to the positive power supply electrode of the power supply end plug (1); the other end of the capacitor C1 is connected to the negative power supply electrode of the power supply end plug (1) and then grounded; the other end of the capacitor C2 is grounded; the other end of the resistor R1 is connected in parallel with pin 2 of the voltage conversion processing chip (6) and a diode Z3; the output end of the diode Z3 is connected to a resistor R6, a capacitor C5, and a capacitor C6, and then connected to the positive input end of the signal processing transmission module (5); the resistor The other end of R6 is connected to the negative input end of the signal processing transmission module (5); the pin 2 of the parallel voltage transformation processing chip (6) is also connected in parallel with the capacitor C3 and the diode Z1, the other end of the diode Z1 is connected to the other end of the diode Z1, and then connected to the resistor R2 in sequence, and then connected to the pin 4, connected to the resistor R5, and then connected to the pin 3, connected to the capacitor C4, and then connected to the pin 5, connected to the pin 6, and connected to the resistor R5 and the inductor L1 in parallel, the output end of the inductor L1 is connected to the output end of the diode Z3, the other end of the resistor R5 is connected in parallel with the pin 7 and the diode Z2, and the other end of the diode Z2 is grounded.

5. The intelligent charging cable according to claim 4, characterized in that: The signal processing and transmission module (5) comprises a transistor U1, the positive input end of the transistor U1 being connected to the output end of the transformer module; the negative input end of the transistor U1 being connected to the thermistor RT; and a digital processing chip (7) at the output end of the transistor U1, the digital processing chip (7) being connected to the wireless transmission module (8).

6. The intelligent charging cable according to claim 5, characterized in that: The wireless transmission module (8) is a 4G, 5G or NB module, and includes a positioning chip.

7. The intelligent charging cable according to claim 6, characterized in that: The positioning chip is a GPS or Beidou positioning chip.

Images