Electric vehicle charging fire-fighting emergency system

Abstract

The utility model discloses an electric car charging fire-fighting emergency system, a plurality of charging boxes are arranged in an electric car placing area, a fire-fighting module socket, a host, a display screen and a communication module are arranged in a security room, and fire-fighting data sent by a fire-fighting module to the host comprise charging box codes, and temperature and smoke concentration of the environment where the charging boxes are located. The display screen is suitable for displaying the real-time fire-fighting data sent by the host in a screen mode, and the host judges whether to start the sound-light alarm of the fire-fighting module of the corresponding code according to the fire-fighting data, sends alarm characters to the display screen and sends an alarm short message to a mobile phone of a vehicle owner of the corresponding channel. Compared with the prior art, the fire-fighting state of electric car charging is monitored in real time, so that public security personnel in hotels and communities can prejudge the development of the charging state more timely; the system compares fire-fighting numerical values, automatically, clearly and accurately judges fire danger before a fire breaks out, warns security guards, vehicle owners and on-site people as soon as possible, and greatly protects personal and property safety of people in hotel communities.

Description

Technical Field

[0001] The utility model relates to electric vehicle charging protection, in particular to an electric vehicle charging fire emergency system. Background Art

[0002] Small, light and fast electric bicycles are becoming increasingly popular, but in reality, there are also frequent fire accidents caused by charging of electric bicycles.

[0003] In hotels and residential areas, many people live densely, and the fire in trams seriously endangers the safety of people and property. Therefore, it is necessary to design a tram charging fire emergency system. Utility Model Content

[0004] The utility model aims to solve at least one of the above-mentioned technical problems and provide an electric vehicle charging fire emergency system to solve the emergency fire of charging threats and promptly warn security guards and vehicle owners.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A tram charging fire emergency system comprises a host, a display screen, a communication module and a plurality of charging boxes. The charging boxes are arranged in a tram placement area, such as a tram charging shed or a corridor. The charging boxes are provided with a fire module and a socket suitable for electrically connecting to a tram charger. The host, the display screen and the communication module are all arranged in a security room. The fire module, the display screen and the communication module are all electrically connected to the host.

[0007] Among them, the fire data sent by the fire protection module to the host includes the charging box code, the temperature and smoke concentration of the environment where the charging box is located, and the display screen is suitable for displaying real-time fire protection data sent by the host, such as "No. X charging temperature A1 smoke concentration B1", "No. Y charging temperature A2 smoke concentration B2", ..., X and Y are codes; the host is suitable for judging whether to start the sound and light alarm of the fire protection module with the corresponding code according to the fire protection data, and the host judges whether to send alarm characters to the display screen according to the fire protection data, such as "No. X charging fire risk"; the host is connected to the owner's mobile phone through the communication module signal, and the host corresponds the owner's mobile phone of each channel to each coded communication module one by one, and the host is suitable for sending alarm text messages to the owner's mobile phone of the corresponding channel according to the fire protection data, such as "No. X charging fire risk".

[0008] Compared with the prior art, the beneficial effects of the present application include: real-time monitoring of the fire protection status of electric vehicle charging, and displaying it on the security room screen, so that hotel and community security guards can predict the development of the charging status more timely and eliminate charging hazards more timely; in addition, the system compares the fire protection values, automatically and clearly and accurately judges the fire risk before the fire occurs, and warns the security guards, car owners and people on the scene as early as possible, and eliminates possible fires in time, greatly protecting the personal and property safety of the people in the hotel community.

[0009] As an improvement of the above technical solution, it also includes a fire-resistant wire trough, which accommodates a mains power line and a plurality of AC contactors. The socket is electrically connected to the mains power line through one-to-one corresponding normally closed contacts of the AC contactor. The host is suitable for determining whether to disconnect the normally closed contacts of the correspondingly coded AC contactors according to fire data.

[0010] As an improvement of the above technical solution, the fire-resistant wire trough accommodates a wire bundle corresponding one-to-one to the charging box, the outer wall of the charging box is provided with a first fire-resistant terminal suitable for electrically connecting to the socket, and a second fire-resistant terminal suitable for electrically connecting to the fire protection module, the outer wall of the fire-resistant wire trough is provided with a third fire-resistant terminal suitable for electrically connecting one-to-one to the normally closed contacts of the AC contactor, and a fourth fire-resistant terminal suitable for electrically connecting one-to-one to the wire bundle, the first fire-resistant terminal and the corresponding third fire-resistant terminal are connected by a first intermediate cable, and the second fire-resistant terminal and the corresponding fourth fire-resistant terminal are connected by a second intermediate cable.

[0011] As an improvement of the above technical solution, the fire protection module includes a first infrared temperature sensor and a smoke sensor. The sensing end of the first infrared temperature sensor faces the socket, and the smoke sensor is located above the socket. The fire protection data sent by the fire protection module to the host includes the socket temperature.

[0012] As an improvement of the above technical solution, the fire protection module includes a second infrared temperature sensor, which is a wide-angle infrared temperature sensor. The sensing end of the second infrared temperature sensor is facing the tram, and the fire protection data sent by the fire protection module to the host includes the tram temperature.

[0013] As an improvement of the above technical solution, a positioning frame and a mounting plate are provided in the charging box. The positioning frame is connected to the charging box via a vertical hinge shaft and is fixedly connected to the charging box via a first screw. The mounting plate is connected to the positioning frame via a horizontal hinge shaft and is fixedly connected to the positioning frame via a second screw. The second infrared temperature sensor is installed on the mounting plate, and a light-transmitting window suitable for the second infrared temperature sensor to detect temperature is provided at the front end of the charging box.

[0014] As an improvement of the above technical solution, the fire protection module includes a buzzer and a warning light, and the warning light includes an O-shaped indicator light. The O-shaped indicator light is arranged on the front end face or the left and right end faces of the charging box, and the host determines whether to intermittently turn on the O-shaped indicator light according to the socket temperature.

[0015] As an improvement of the above technical solution, the mounting plate is provided with a spotlight, the light-emitting end of the spotlight is suitable for facing the tram, and the host determines whether to intermittently light up the spotlight according to the temperature of the tram.

[0016] As an improvement of the above technical solution, a vertical groove is provided at the front end of the charging box, the socket is accommodated in the vertical groove, and the sensing end of the first infrared temperature sensor and the sensing end of the smoke sensor are arranged in the vertical groove.

[0017] As an improvement of the above technical solution, the upper end of the vertical groove is a closed end, so that the upper section of the vertical groove forms a smoke trapping area, and the sensing end of the smoke sensor is arranged in the smoke trapping area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a circuit schematic diagram of the electric vehicle charging fire emergency system according to the embodiment of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram showing the structure of a charging box of a fire emergency system for electric vehicle charging;

[0021] Figure 3 for Figure 2 A schematic diagram showing the structure of the charging box when it is opened;

[0022] Figure 4 for Figure 2 A schematic diagram showing the structure of the charging box after the box door and its components are hidden.

[0023] The accompanying drawings are only one specific embodiment of the present invention, and the form and structure of this specific embodiment should not limit the expansion of other embodiments.

[0024] Charging box 100, box body 110, box door 120, vertical groove 121, light-transmitting window 122;

[0025] Fire protection module 130, first infrared temperature sensor 131, second infrared temperature sensor 132, smoke sensor 133, spotlight 134, buzzer 135;

[0026] Socket 140;

[0027] Position adjustment frame 151, mounting plate 152, first screw 153, second screw 154, rubber block 155;

[0028] Terminal block 160;

[0029] Host 200, communication module 210;

[0030] 300 for the owner’s mobile phone;

[0031] Fire-resistant wire duct 400, AC power line 510, wire harness 520, AC contactor KM, fuse FU;

[0032] A first fire-resistant terminal 610 , a second fire-resistant terminal 620 , a third fire-resistant terminal 630 , a fourth fire-resistant terminal 640 , a first intermediate cable 650 , and a second intermediate cable 660 . DETAILED DESCRIPTION

[0033] 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.

[0034] Reference Figures 1 to 3 The utility model provides a vehicle charging fire emergency system, including a host 200, a display screen and a communication module 210 and a plurality of charging boxes 100. The charging box 100 is arranged in a vehicle placement area, such as a vehicle charging shed or a corridor. The charging box 100 is provided with a fire module 130 and a socket 140 suitable for electrically connecting to a vehicle charger. The host 200, the display screen and the communication module 210 are all arranged in a security room. The fire module 130, the display screen and the communication module 210 are all electrically connected to the host 200.

[0035] Among them, the fire data sent by the fire module 130 to the host 200 includes the charging box code, the temperature and smoke concentration of the environment in which the charging box 100 is located, and the display screen is suitable for displaying real-time fire data sent by the host 200, such as "charging temperature A1 smoke concentration B1 for No. X", "charging temperature A2 smoke concentration B2", ..., X and Y are codes; the host 200 is suitable for judging whether to start the sound and light alarm of the fire module 130 with the corresponding code according to the fire data, and the host 200 judges whether to send alarm characters to the display screen according to the fire data, such as "charging fire risk for No. X"; the host 200 is connected to the owner's mobile phone 300 through the communication module 210 signal, and the host 200 corresponds the owner's mobile phone 300 of each channel to each coded communication module 210 one by one, and the host 200 is suitable for sending alarm text messages to the owner's mobile phone 300 of the corresponding channel according to the fire data, such as "charging fire risk for No. X".

[0036] A plurality of charging spaces are provided in the tram placement area such as the charging shed, each of which corresponds to a charging box 100, and each charging box 100 is marked with a corresponding code; the AC power line 510 (live wire, neutral wire, ground wire) is introduced into the tram placement area after passing through an air switch and a knife switch, and electrically connects the plurality of charging boxes 100.

[0037] The host can be of many types, such as MCU, computer, PLC controller, etc.; such as Microcontroller Unit Microcontroller Unit, MCU, also known as single-chip microcomputer or single-chip microcomputer, which integrates memory, counter, timer, USB, A / D conversion, etc., and even LCD drive circuits are integrated on it, such as chip-level computers, computer module boards, and MCUs with different combinations of control for different applications. Computers, PLC controllers, etc. are similarly combinations of different components / circuits, and each controller prefers components with different performance specifications.

[0038] An infrared temperature sensor is a device that uses infrared rays to measure temperature. The temperature measurement principle is the blackbody radiation law. Non-contact infrared temperature measurement is also called radiation temperature measurement. Generally, thermoelectric or photoelectric detectors are used as detection elements. It can achieve large-area temperature measurement (wide-angle) or temperature measurement of a certain point on the object being measured.

[0039] The communication module can be a GSM module, a TDMA module, a GPRS module, a 3G module, a 4G module, or a 5G module.

[0040] It can be understood that the charging box 100 has a one-to-one code, and the components and data such as the fire protection module 130 and the socket 140 thereon correspond to the code; other devices that correspond one-to-one to the charging box 100 also correspond to the code, such as the AC contactor KM in the fire-resistant wire duct 400.

[0041] The operation process of the utility model is as follows: in practice, the host 200 can receive the actual fire data of each code in real time (e.g., 10ms), and intermittently compare the actual value of each code with the set threshold value (e.g., every 15 seconds, T=15s), and judge whether there is a fire danger state according to the comparison; wherein, 2s≤T≤2min, the host 200 is not easy to be stuck due to intensive operation, and the fire danger can be judged more timely;

[0042] The host 200 compares the actual value of the fire data with the set threshold every T time. Specifically, when the fire module 130 coded with number X detects that the ambient temperature of the charging box 100 with number X is ≥80°C, and / or the smoke concentration is ≥150ppm, the host 200 determines the fire module 130 coded with number X as a fire risk state based on the comparison, and the host 200 sends the alarm to the display screen. The display screen displays "Charging temperature A1 smoke concentration B1", "Charging temperature A2 smoke concentration B2", ... "Charging with number X is in fire risk" according to the information sent by the host 200. The host 200 activates the sound and light alarm of the fire module 130 coded with number X, and the host 200 sends an alarm text message "Charging with number X is in fire risk" to the mobile phone 300 of the owner of the channel X. The fire module 130 includes a warning light and a buzzer 135. When the on-site personnel or the security guard / car owner who arrives at the scene hears the buzzer 135, they can determine that there is a fire threat in the charging shed, and use the warning light to determine the specific parking space where the threat occurs, and then quickly eliminate the fire threat.

[0043] In some embodiments, when the fire module 130 coded with X detects that the ambient temperature of the charging box 100 is ≥100°C (for example, for PVC cables with a lower ignition point of 150°C), and / or the smoke concentration is ≥350ppm, the host 200 determines the fire module 130 coded with X as a fire state based on the comparison, and the host 200 sends the alarm to the display screen. The display screen also displays "Please cut off the power supply" based on the information sent by the host 200. The security guard can cut off the charging power supply of the entire tram placement area, that is, manually turn off the air switch / knife switch of the charging power supply in the tram placement area.

[0044] Compared with the prior art, the beneficial effects of the present application include: real-time monitoring of the fire protection status of electric vehicle charging, and displaying it on the security room screen, so that hotel and community security guards can predict the development of the charging status more timely and eliminate charging hazards more timely; in addition, the system compares the fire protection values, automatically and clearly and accurately judges the fire risk before the fire occurs, and warns the security guards, car owners and people on the scene as early as possible, and eliminates possible fires in time, greatly protecting the personal and property safety of the people in the hotel community.

[0045] Reference Figure 1In some embodiments of the utility model, a fire-resistant wire groove 400 is also included. The fire-resistant wire groove 400 accommodates the mains power line 510 and a plurality of AC contactors KM. The socket 140 is electrically connected to the mains power line 510 through the normally closed contacts of the AC contactors KM corresponding to each other. The host 200 is suitable for judging whether to disconnect the normally closed contacts of the AC contactors KM corresponding to the codes according to the fire data. The coil of the AC contactor KM adopts low-voltage direct current, and the coil of the AC contactor KM is electrically connected to the host 200; when the host 200 compares the fire data of the code X and judges the fire module 130 of the code X as a fire hazard state, the host 200 also controls the coil of the AC contactor KM of the code X to be energized, the normally closed contacts of the AC contactor KM of the code X are disconnected, and the socket 140 of the code X disconnects the charging power supply. The fire-resistant wire duct 400 can be made of PTFE (polytetrafluoroethylene) or FEP (fluorinated ethylene propylene) material. The wire duct has stronger fire resistance and its ignition point is higher than FRPVC and LSZH, with an ignition point of up to 800°C.

[0046] Reference Figure 1 Preferably, the charging box 100 is electrically connected to the normally closed contact of the AC contactor KM through a one-to-one corresponding fuse FU. The fire-resistant wire duct 400 is combined with the fuse FU to better prevent short circuits and reduce the probability of fire spreading.

[0047] Reference Figure 1 In some embodiments of the utility model, the fire-resistant wire trough 400 contains a wire harness 520 corresponding to the charging box 100, and the outer wall of the charging box 100 is provided with a first fire-resistant terminal 610 suitable for electrically connecting to the socket 140 and a second fire-resistant terminal 620 suitable for electrically connecting to the fire protection module 130. The outer wall of the fire-resistant wire trough 400 is provided with a third fire-resistant terminal 630 suitable for electrically connecting to the normally closed contact of the AC contactor KM and a fourth fire-resistant terminal 640 corresponding to electrically connecting to the wire harness 520. The first fire-resistant terminal 610 and the corresponding third fire-resistant terminal 630 are connected by a first intermediate cable 650, and the second fire-resistant terminal 620 and the corresponding fourth fire-resistant terminal 640 are connected by a second intermediate cable 660. The charging box 100 and the fire-resistant wire trough 400 are convenient to disassemble and assemble, and the charging box 100 is easy to adjust the position; in the event of a fire in the charging box 100, the fire-resistant wire trough 400 is still relatively safe.

[0048] Similarly, the shells of the first, second, third and fourth fire-resistant terminals can be made of PTFE (polytetrafluoroethylene) or FEP (fluorinated ethylene propylene) material or epoxy resin.

[0049] The temperature of the environment in which the charging box 100 is located includes the socket temperature. Figures 1 to 3In some embodiments of the present invention, the fire protection module 130 includes a first infrared temperature sensor 131 and a smoke sensor 133. The sensing end of the first infrared temperature sensor 131 faces the socket 140, and the smoke sensor 133 is located above the socket 140. The first infrared temperature sensor 131 and the smoke sensor 133 can directly and instantly sense whether the socket 140 hides the threat of fire; in addition, when the tram end emits smoke, the smoke sensor 133 is at a certain distance from the smoke sensor 133, and the smoke sensor 133 senses the threat of fire at the tram end relatively lagging. The fire protection data sent by the fire protection module 130 to the host 200 includes the socket temperature, the fire protection data intermittently compared by the host 200 includes the socket temperature, the actual temperature of the socket 140 is compared with the corresponding threshold value / set value, and the real-time fire protection data displayed on the display screen may include "X charging socket temperature A11 smoke concentration B1", "Y charging socket temperature A21 smoke concentration B2", etc.

[0050] The smoke sensor 133 / smoke detector is provided with radioactive material capable of generating electric current. When smoke particles in the smoke enter the sensor, the corresponding concentration of smoke causes the radioactive material to disturb the corresponding amount of current, and the host recognizes the analog electrical signal value.

[0051] The temperature of the environment in which the charging box 100 is located includes the vehicle temperature. Figures 1 to 3 Preferably, the fire protection module 130 includes a second infrared temperature sensor 132, which is a wide-angle infrared temperature sensor, such as a thermometer gun that is commonly seen, and the sensing end of the second infrared temperature sensor 132 faces the tram. The fire protection data sent by the fire protection module 130 to the host 200 includes the tram temperature, and the fire protection data intermittently compared by the host 200 includes the tram temperature. The actual tram temperature is compared with the corresponding threshold value (wherein the comparison threshold values ​​of the socket temperature and the tram temperature can be the same), and the real-time fire protection data displayed on the display screen can include "X charging socket temperature A11 tram temperature A12 smoke concentration B1", "Y charging socket temperature A21 tram temperature A22 smoke concentration B2", ...

[0052] Reference Figures 2 to 4 Furthermore, the charging box 100 is provided with a positioning frame 151 and a mounting plate 152. The positioning frame 151 is connected to the charging box 100 via a vertical hinge shaft and fixedly connected to the charging box 100 via a first screw 153. The mounting plate 152 is connected to the positioning frame 151 via a horizontal hinge shaft and fixedly connected to the positioning frame 151 via a second screw 154. The second infrared temperature sensor 132 is installed on the mounting plate 152. The front end of the charging box 100 is provided with a light-transmitting window 122 suitable for the second infrared temperature sensor 132 to detect temperature. Figure 4The positioning frame 151 is provided with an arc-shaped slot, and the locking nut is suitable for being accommodated in one point of the arc-shaped slot. The first screw 153 passes through the installation position of the charging box 100 and is connected to the locking nut, so that the positioning frame 151 fixes the current swing direction; the horizontal hinge axis is threaded through the positioning frame 151, and its own optical axis end penetrates the right end of the mounting plate 152. The second screw 154 is threadedly connected to the positioning frame 151 to push the mounting plate 152 to the right, so that the mounting plate 152 is squeezed against the positioning frame 151 through the rubber block 155. The positioning frame 151 fixes the current pitch angle based on the clamping of the second screw 154 and the rubber block 155. By adjusting the swing direction and pitch angle of the mounting plate 152, the second infrared temperature sensor 132 is more accurately oriented toward the tram.

[0053] Reference Figure 3 , Figure 4 The vertical hinge axis is a virtual axis without a real image. By loosening the screw corresponding to the vertical hinge axis (corresponding to the core line of the hinge axis), the positioning frame 151 can drive the components thereon to swing.

[0054] Reference Figure 2 , Figure 3 Preferably, the charging box 100 includes a box body 110 and a box door 120, one end of the box door 120 is hinged to the box body 110, and the other end is connected to the box body 110 through a lock, and the socket 140, the smoke sensor 133, the first infrared temperature sensor 131 and the light-transmitting window 122 are arranged on the box door 120. By opening the box door 120, the second infrared temperature sensor 132 can be conveniently adjusted, and the smoke sensor 133, the first infrared temperature sensor 131, and the second infrared temperature sensor 132 lights can be conveniently maintained.

[0055] In some embodiments of the utility model, the fire protection module 130 includes a buzzer 135 and a warning light. The warning light includes an O-shaped indicator light. The O-shaped indicator light is arranged on the front end face or the left and right end faces of the charging box 100. The host 200 determines whether to intermittently light up the O-shaped indicator light according to the temperature of the socket. After the on-site personnel or the security guard / car owner who arrives at the scene determines the specific dangerous parking space, they can still further quickly determine whether the socket 140 of the parking space is dangerous. Specifically, when the first infrared temperature sensor 131 coded with number X detects that the temperature of the socket coded with number X is ≥ 80°C, the host 200 determines the fire protection module 130 coded with number X as being in a fire risk state based on comparison, and the host 200 sends the alarm to the display screen, and the host 200 activates the buzzer 135 coded with number X, and activates the O-shaped indicator light coded with number X; even, the host 200 sends an alarm character "Charging No. X is in fire risk, the socket 140 and / or the charger is at high temperature" to the display screen, and sends an alarm text message "Charging No. X is in fire risk, the socket 140 and / or the charger is at high temperature" to the mobile phone 300 of the owner of the channel No. X.

[0056] The O-shaped indicator light may be a conventional lamp structure, which includes a lamp tube, lamp beads, and a light emitting plate covering the light emitting end of the lamp tube; in the utility model, the light emitting plate is provided with an O-shaped light-transmitting area.

[0057] Reference Figures 1 to 4 In some embodiments of the utility model, the mounting plate 152 is provided with a spotlight 134. The spotlight 134 and the condenser of the light beam emission principle thereof are conventional knowledge and will not be elaborated here. The light-emitting end of the spotlight 134 is suitable for facing the tram. The host 200 determines whether to intermittently light the spotlight 134 according to the temperature of the tram. After the on-site personnel or the security guard / car owner who arrives at the scene determines the specific dangerous parking space, they can still further quickly determine whether the tram in the parking space is dangerous. Specifically, when the second infrared temperature sensor 132 coded with number X detects that the temperature of the electric car coded with number X is ≥ 80°C, the host 200 determines the fire protection module 130 coded with number X as being in a fire risk state based on comparison, and the host 200 sends the alarm to the display screen, and the host 200 starts the buzzer 135 coded with number X, starts the spotlight 134 coded with number X, and light beams appear intermittently on the electric car; even, the host 200 sends an alarm character "Charging fire risk in number X, the socket 140 and / or the charger is at high temperature" to the display screen, and sends an alarm text message "Charging fire risk in number X, the electric car and / or the charger is at high temperature" to the mobile phone 300 of the owner of the car in channel X.

[0058] Reference Figure 2 , Figure 3 In some embodiments of the utility model, a vertical groove 121 is provided at the front end of the charging box 100, the socket 140 is accommodated in the vertical groove 121, the sensing end of the first infrared temperature sensor 131 and the sensing end of the smoke sensor 133 are arranged in the vertical groove 121, and the vertical groove 121 is suitable for hiding the socket 140 and the charger plug, so that users and foreign objects are not easy to scratch the socket 140 and the charger plug; the vertical groove 121 facilitates the smoke to float upward in a concentrated manner, so that the smoke sensor 133 can quickly sense the fire hazard.

[0059] Reference Figure 2 , Figure 3 In some embodiments of the present invention, the upper end of the vertical groove 121 is a closed end, so that the upper section of the vertical groove 121 forms a smoke trapping area, and the sensing end of the smoke sensor 133 is arranged in the smoke trapping area. The smoke sensor 133 can sense the fire risk more quickly, and the closed plate at the upper end of the vertical groove 121 is also suitable as a rain shelter for the socket 140, the smoke sensor 133 and the first infrared temperature sensor 131.

[0060] Reference Figure 3In some embodiments of the utility model, a terminal block 160 is provided in the charging box 100, and each port of the terminal block 160 is suitable for electrically connecting each sub-wire of the wire bundle 520 in the fire-resistant wire trough 400 one by one, and the first infrared temperature sensor 131, the smoke sensor 133 and other components are electrically connected to the corresponding ports of the terminal block 160.

[0061] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. Any modification or equivalent substitution that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. A fire emergency system for electric vehicle charging, characterized in that: include: A plurality of charging boxes (100) are arranged in a tram placement area, wherein the charging boxes (100) are provided with a fire protection module (130) and a socket (140) suitable for electrically connecting to a tram charger; The host (200), the display screen and the communication module (210) are all arranged in the security room, and the fire protection module (130), the display screen and the communication module (210) are all electrically connected to the host (200); The fire protection data sent by the fire protection module (130) to the host (200) includes a charging box code, a temperature of an environment in which the charging box (100) is located, and a smoke concentration, and the display screen is suitable for displaying the real-time fire protection data sent by the host (200); The host (200) is adapted to determine whether to activate the sound and light alarm of the fire module (130) corresponding to the code according to the fire data, and the host (200) determines whether to send an alarm character to the display screen according to the fire data; The host (200) is connected to the car owner's mobile phone (300) via the communication module (210) signal, the host (200) corresponds the car owner's mobile phone (300) of each channel to each coded communication module (210) one by one, and the host (200) is suitable for sending an alarm text message to the car owner's mobile phone (300) of the corresponding channel according to the fire data.

2. The electric vehicle charging fire emergency system according to claim 1, characterized in that: It also includes a fire-resistant wire trough (400), the fire-resistant wire trough (400) accommodating a mains power line (510) and a plurality of AC contactors (KM), the socket (140) being electrically connected to the mains power line (510) via one-to-one corresponding normally closed contacts of the AC contactors (KM), and the host (200) being adapted to determine whether to disconnect the normally closed contacts of the correspondingly coded AC contactors (KM) according to fire data.

3. The electric vehicle charging fire emergency system according to claim 2, characterized in that: The fire-resistant wire trough (400) accommodates a wire bundle (520) corresponding one-to-one to the charging box (100), and the outer wall of the charging box (100) is provided with a first fire-resistant terminal (610) suitable for electrically connecting to the socket (140) and a second fire-resistant terminal (620) suitable for electrically connecting to the fire protection module (130). The outer wall of the fire-resistant wire trough (400) is provided with a third fire-resistant terminal (630) suitable for electrically connecting one-to-one to the normally closed contact of the AC contactor (KM) and a fourth fire-resistant terminal (640) corresponding to the wire bundle (520). The first fire-resistant terminal (610) and the corresponding third fire-resistant terminal (630) are connected via a first intermediate cable (650), and the second fire-resistant terminal (620) and the corresponding fourth fire-resistant terminal (640) are connected via a second intermediate cable (660).

4. The electric vehicle charging fire emergency system according to any one of claims 1 to 3, characterized in that: The fire protection module (130) comprises a first infrared temperature sensor (131) and a smoke sensor (133); the sensing end of the first infrared temperature sensor (131) faces the socket (140); the smoke sensor (133) is located above the socket (140); and the fire protection data sent by the fire protection module (130) to the host (200) comprises the socket temperature.

5. The electric vehicle charging fire emergency system according to claim 4, characterized in that: The fire protection module (130) comprises a second infrared temperature sensor (132), the second infrared temperature sensor (132) is a wide-angle infrared temperature sensor, the sensing end of the second infrared temperature sensor (132) faces the tram, and the fire protection data sent by the fire protection module (130) to the host (200) comprises the tram temperature.

6. The electric vehicle charging fire emergency system according to claim 5, characterized in that: The charging box (100) is provided with a positioning frame (151) and a mounting plate (152); the positioning frame (151) is connected to the charging box (100) via a vertical hinge shaft and is fixedly connected to the charging box (100) via a first screw (153); the mounting plate (152) is connected to the positioning frame (151) via a horizontal hinge shaft and is fixedly connected to the positioning frame (151) via a second screw (154); the second infrared temperature sensor (132) is mounted on the mounting plate (152); and a light-transmitting window (122) suitable for the second infrared temperature sensor (132) to detect temperature is provided at the front end of the charging box (100).

7. The electric vehicle charging fire emergency system according to claim 4, characterized in that: The fire module (130) includes a buzzer (135) and a warning light, and the warning light includes an O-shaped indicator light. The O-shaped indicator light is arranged on the front end face or the left and right end faces of the charging box (100), and the host (200) determines whether to intermittently turn on the O-shaped indicator light according to the socket temperature.

8. The electric vehicle charging fire emergency system according to claim 6, characterized in that: The mounting plate (152) is provided with a spotlight (134), the light-emitting end of the spotlight (134) being adapted to face the electric vehicle, and the host (200) determines whether to intermittently light up the spotlight (134) according to the temperature of the electric vehicle.

9. The electric vehicle charging fire emergency system according to claim 4, characterized in that: The front end of the charging box (100) is provided with a vertical groove (121), the socket (140) is accommodated in the vertical groove (121), and the sensing end of the first infrared temperature sensor (131) and the sensing end of the smoke sensor (133) are arranged in the vertical groove (121).

10. The electric vehicle charging fire emergency system according to claim 9, characterized in that: The upper end of the vertical groove (121) is a closed end, so that the upper section of the vertical groove (121) forms a smoke trapping area, and the sensing end of the smoke sensor (133) is arranged in the smoke trapping area.

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