New energy charging pile fire detection system based on multi-source signal

Abstract

The utility model relates to a new energy charging pile fire detection system based on multi-source signals. The system comprises a master control module, a smoke sensing module, a temperature detection module, a current detection module, a voltage detection module, a smoke sensor and a temperature sensor. The smoke sensor and the temperature sensor are arranged on the charging gun, spontaneous combustion of a charged vehicle can be found in time, spontaneous combustion of the charging pile can also be found in time according to the smoke sensing module, the temperature detection module and other modules arranged in the charging pile, and meanwhile through detection of multi-source signals, spontaneous combustion of the charging pile can be found out in time. The influence of factors such as weather and wind power can be dealt with, so that fire-fighting measures can be taken in time to control the fire behavior, and the loss is reduced; meanwhile, according to information transmission between the smoke sensor and the smoke sensing module and between the temperature sensor and the temperature detection module, it can be guaranteed that after an abnormal signal is detected, the abnormal signal can be transmitted to the main control module, reminding is conducted in time, and fire fighting measures are taken in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire detection technical field, concretely relates to a new energy charging pile fire detection system based on multi -source signal. BACKGROUND

[0002] The statements herein merely provide background information related to the utility model and do not necessarily constitute the prior art.

[0003] With the continuous progress and development of electric vehicle technology, more and more new energy electric vehicles are put into use, which makes the number of new energy charging piles gradually increase. In the process of long-term use of the charging pile, the internal circuit of the charging pile will be aged, the charging time will be long, the temperature will be too high, etc. Cause a fire in the charging pile; at the same time in the process of use, it will cause the charging pile to catch fire because of the car spontaneous combustion and other reasons.

[0004] In the prior art, various sensors are usually installed in the charging pile to detect whether the charging pile has caught fire, but this method is more effective for detecting the spontaneous combustion of the charging pile, and the detection of the fire caused by the spontaneous combustion of the car is not ideal.

[0005] When the car catches fire, the fire will spread and cause the charging pile to catch fire; in the process of car spontaneous combustion, a large amount of smoke and high temperature will be generated, but the diffusion of smoke and temperature needs a certain time, when the abnormal state is detected by various sensors inside the charging pile, the charging pile has been affected by the fire at this time, so that it is impossible to take preventive measures for the car and the charging pile in time, and cause great loss. At the same time, in the process of car spontaneous combustion, the internal sensors of the charging pile cannot detect the abnormal state due to weather, wind and other reasons, which also leads to the failure to take preventive measures in time. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem to provide a new energy charging pile fire detection system based on multi -source signal, through the sensor arranged on the charging gun of the charging pile and the detection module arranged in the charging pile, the spontaneous combustion of the charging pile and the vehicle can be found in time, so as to timely remind and take preventive measures.

[0007] The purpose of this invention is to provide a fire detection system for new energy charging piles based on multi-source signals. The charging pile includes a charging gun. The fire detection system includes a main control module, a smoke detection module, a temperature detection module, a current detection module, a voltage detection module, a smoke sensor, and a temperature sensor. The smoke detection module, temperature detection module, current detection module, and voltage detection module are all connected to the main control module and are used to detect smoke, temperature, current, and voltage data in the charging pile, respectively. The smoke sensor and temperature sensor are mounted on the charging gun. The smoke sensor is connected to the main control module and the smoke detection module, and the temperature sensor is connected to the main control module and the temperature detection module.

[0008] As a further technical solution, the fire detection system also includes an alarm module, which is connected to the main control module.

[0009] As a further technical solution, the fire detection system also includes a display module, which is connected to the main control module.

[0010] As a further technical solution, the fire detection system also includes a power supply module, which is connected to the main control module and the display module.

[0011] As a further technical solution, the fire detection system also includes a storage module, which is connected to the main control module.

[0012] As a further technical solution, the fire detection system also includes a communication module, which is connected to the main control module.

[0013] As a further technical solution, the communication module adopts wireless communication.

[0014] As a further technical solution, the main control module is specifically a microcontroller.

[0015] As a further technical solution, the smoke sensor adopts an infrared through-beam smoke sensor.

[0016] As a further technical solution, the temperature sensor adopts a PT100 thermistor.

[0017] The beneficial effects of one or more of the above technical solutions:

[0018] (1) Based on the smoke sensor and temperature sensor installed on the charging gun, the present invention can detect the spontaneous combustion of the charging vehicle in a timely manner. Based on the smoke sensor module and temperature detection module installed in the charging pile, the charging pile can also be detected in a timely manner when it spontaneously combusts. At the same time, through the detection of multi-source signals, it can also cope with the influence of weather, wind and other factors, so as to take timely fire-fighting measures to control the fire and reduce losses.

[0019] (2)The utility model discloses a smoke sensor is set up on the charging gun simultaneously with main control module and smoke module connection, temperature sensor is connected with main control module and temperature detection module simultaneously, and through the information transmission between smoke sensor and smoke module, temperature sensor and temperature detection module, thereby can guarantee after detecting abnormal signal, abnormal signal can be transmitted to main control module, and timely remind and take preventive measures. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the specification provide further understanding of the present application, and serve as an aid in comprehending the present application. Each of the drawings constitutes a part of this application. Embodiments of the application and its description are used to explain the present application, and do not limit the present application.

[0021] Figure 1 A structure diagram of the new energy charging pile fire detection system based on multi-source signals.

[0022] Figure 2 A circuit diagram of overvoltage detection in the voltage detection module of the new energy charging pile fire detection system based on multi-source signals.

[0023] 1, main control module, 2, smoke module, 3, temperature detection module, 4, current detection module, 5, voltage detection module, 6, smoke sensor, 7, temperature sensor, 8, alarm module, 9, display module, 10, power module, 11, storage module, 12, communication module. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model are described clearly and completely below. Figures 1-2 The technical solutions in the embodiments of the utility model are described clearly and completely below.

[0025] Embodiment one

[0026] Referring to Figures 1-2 A new energy charging pile fire detection system based on multi-source signals is used for charging piles and charging guns on the charging piles.

[0027] The fire detection system comprises a main control module 1, a smoke module 2, a temperature detection module 3, a current detection module 4, a voltage detection module 5, a smoke sensor 6 and a temperature sensor 7.

[0028] In this embodiment, the master module 1 adopts the STC89 series single-chip microcomputer and is used for receiving signals transmitted by each module and transmitting instructions; meanwhile, the master module 1 can be arranged inside the charging pile. The smoke sensing module 2, the temperature detection module 3, the current detection module 4 and the voltage detection module 5 are also arranged inside the charging pile and are connected with the master module 1. The smoke sensing module 2, the temperature detection module 3, the current detection module 4 and the voltage detection module 5 are used for detecting smoke, temperature, current and voltage data of the charging pile itself and transmitting abnormal detection information to the master module 1.

[0029] When the charging pile is self-ignited, the generated smoke can be detected by the smoke sensing module 2 arranged inside the charging pile. When the detected value exceeds the threshold value set inside, the smoke sensing module 2 transmits information to the master module 1. Meanwhile, whether the charging pile is self-ignited or the charging vehicle is self-ignited, internal short circuit, under-voltage, overload and other problems can be caused. According to the temperature detection module 3, the current detection module 4 and the voltage detection module 5 arranged inside the charging pile, abnormal information can be transmitted to the master module 1, so that preventive measures can be taken in time.

[0030] The smoke sensing module 2, the temperature detection module 3, the current detection module 4 and the voltage detection module 5 can adopt corresponding sensors and are installed at appropriate positions inside the charging pile. The number of sensors in each module is not required here.

[0031] Referring to Figure 2 , the buffer U, the resistor R2 and the diode D are connected in sequence from the In end to the Out end, the In end is connected with the voltage VDD through the resistor R1, and the In end is grounded through the capacitor C1; the resistor R2 and the diode D are also commonly connected with the resistor R3 in parallel, and the Out end is also grounded through the capacitor C2.

[0032] The In end is used for connecting electrical appliances or power transmission lines inside the charging pile, and the Out end is used for connecting the master module 1. When the circuit works normally, the voltage value of the capacitor C1 is VDD, at this time, the buffer U limits the current, so that the detection circuit does not transmit signals to the master module 1. When overvoltage occurs in the charging cabinet and exceeds the voltage VDD, at this time, the current will first pass through the buffer U, and the resistor R2, the resistor R3 and the diode D constitute a buffer circuit to limit the current, thereby playing a buffering role. Meanwhile, the capacitor C2 can play a role of protecting the circuit, and finally the current will give the master module 1 a signal through the Out end, thereby completing the overvoltage detection. When the voltage returns to the normal state, the buffer U will limit the current again.

[0033] In addition, Figure 2The voltage detection module 5 is only one embodiment of detection in the voltage detection module 5; in the specific implementation process, appropriate circuits can be selected for detection according to different structures in the charging pile, and no requirements are made here.

[0034] In the embodiment, the smoke sensor 6 and the temperature sensor 7 are nested at the handle of the charging gun; the smoke sensor 6 is connected with the main control module 1 and the smoke module 2, and the temperature sensor 7 is connected with the main control module 1 and the temperature detection module 3.

[0035] The information between the smoke sensor 6 and the smoke module 2 and the information between the temperature sensor 7 and the temperature detection module 3 can be transmitted to each other; through the above setting, the smoke sensor 6, the smoke module 2, the temperature sensor 7, the temperature detection module 3 and the main control module 1 are not single-line connected, so that the problem that abnormal information cannot be transmitted to the main control module 1 due to single-line connection failure is avoided.

[0036] At the same time, the battery of the existing new energy vehicle is installed at the chassis of the vehicle, and there is still a distance between the vehicle battery and the charging pile when the new energy vehicle is charging; when the new energy vehicle is self-igniting and the fire is not large, the temperature generated at this time is low and the smoke is less, which will not have too much impact on the internal structure of the charging pile, and the smoke module 2 arranged inside the charging pile cannot detect abnormal information in time; when the fire is large, the smoke generated can be detected by the smoke module 2 arranged inside the charging pile and a warning is given; but at this time, the fire has already affected the charging pile, and the charging pile may have caught fire, so that preventive measures cannot be taken in time for the self-igniting vehicle and the charging pile, which finally leads to huge losses.

[0037] When the vehicle is charging, the charging gun is closer to the surface of the vehicle body; when the vehicle (battery) is self-igniting, the smoke rises from the bottom of the vehicle, and at this time the smoke sensor 6 arranged on the charging gun can detect abnormal information faster, so that abnormal information can be detected in the early stage of vehicle self-ignition and transmitted to the main control module 1. At the same time, by arranging the temperature sensor 7 on the charging gun, the distance between the temperature sensor 7 and the vehicle battery is closer; when the vehicle is self-igniting, the temperature sensor 7 can also detect abnormal information in the first time and transmit it to the main control module 1.

[0038] In addition, compared with only setting the smoke sensing module 2 and the temperature detection module 3 in the charging pile, the smoke sensor 6 and the temperature sensor 7 arranged on the charging gun can detect the abnormal information more quickly when encountering bad weather such as strong wind; even if the smoke sensor 6 and the temperature sensor 7 arranged on the charging gun cannot detect in the first time, the temperature detection module 3, the current detection module 4 and the voltage detection module 5 arranged in the charging pile can also detect the short circuit, the under-voltage and the overload problems generated in the charging pile, so as to transmit the abnormal information to the main control module 1.

[0039] In order to ensure that the smoke sensor 6 and the temperature sensor 7 have good sensitivity, the smoke sensor 6 adopts an infrared reflection smoke sensor, and the temperature sensor 7 adopts a PT100 thermal resistance.

[0040] Referring to Figure 1 The fire detection system further comprises an alarm module 8, a display module 9, a power module 10, a storage module 11 and a communication module 12. The alarm module 8, the display module 9, the storage module 11 and the communication module 12 are connected with the main control module 1, and the power module 10 is connected with the main control module 1 and the display module 9.

[0041] The alarm module 8 adopts an alarm buzzer, which alarms when the main control module 1 receives the abnormal information. The display module 9 adopts a liquid crystal display screen, which displays the abnormal information when the main control module 1 receives the abnormal information.

[0042] Meanwhile, the power module 10 adopts a DC 24V power supply, which is used to provide power support for the main control module 1 and the display module 9. The storage module 11 is used to save the abnormal information received by the main control module 1. Finally, the communication module 12 is used for communication, and the communication module 12 can be connected with a remote monitoring center. When the main control module 1 receives the abnormal information, the abnormal information is transmitted to the remote monitoring center, so as to play a reminding role, thereby facilitating the prevention measures for the self-ignition vehicle or the charging.

[0043] In the embodiment, the communication module 12 adopts wireless communication, and can also adopt Ethernet, Bluetooth or Wi-Fi for communication.

[0044] Although the specific embodiments of the utility model have been described in combination with the drawings, it is not a limitation on the protection scope of the utility model. Those skilled in the art should understand that various modifications or changes made by those skilled in the art without creative labor on the basis of the technical scheme of the utility model are still within the protection scope of the utility model.

Claims

1. A new energy charging pile fire detection system based on multi-source signals, the charging pile comprising a charging gun; characterized in that, The fire detection system comprises a master control module, a smoke sensing module, a temperature detection module, a current detection module, a voltage detection module, a smoke sensor and a temperature sensor; the smoke sensing module, the temperature detection module, the current detection module and the voltage detection module are connected with the master control module and are respectively used for detecting smoke, temperature, current and voltage data in the charging pile; the smoke sensor and the temperature sensor are arranged on the charging gun, the smoke sensor is connected with the master control module and the smoke sensing module, and the temperature sensor is connected with the master control module and the temperature detection module; Information between the smoke sensor and the smoke sensing module and between the temperature sensor and the temperature detection module is transmitted to each other; The smoke sensor adopts an infrared opposite-shooting smoke sensor.

2. The new energy charging pile fire detection system based on multi-source signals according to claim 1, wherein The fire detection system further comprises an alarm module, and the alarm module is connected with the master control module.

3. The new energy charging pile fire detection system based on multi-source signals according to claim 1, characterized in that, The fire detection system further comprises a display module, and the display module is connected with the master control module.

4. The new energy charging pile fire detection system based on multi-source signals according to claim 1, characterized in that, The fire detection system further comprises a power module, and the power module is connected with the master control module and the display module.

5. The new energy charging pile fire detection system based on multi-source signals according to claim 1, characterized in that, The fire detection system further comprises a storage module, and the storage module is connected with the master control module.

6. The new energy charging pile fire detection system based on multi-source signals according to claim 1, characterized in that, The fire detection system further comprises a communication module, and the communication module is connected with the master control module.

7. The new energy charging pile fire detection system based on multi-source signals according to claim 6, characterized in that, The communication module adopts wireless communication.

8. The new energy charging pile fire detection system based on multi-source signals according to claim 1, characterized in that, The master control module is specifically a single-chip microcomputer.

9. The new energy charging pile fire detection system based on multi-source signals according to claim 1, characterized in that, The temperature sensor adopts a PT100 thermal resistance.

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