Charging pile socket with non-contact temperature monitoring function

Abstract

The utility model belongs to the technical field of charging pile safety, and particularly relates to a charging pile socket with a non-contact temperature monitoring function, which comprises a socket main body, a shell, an infrared thermal imaging sensor, a control module and a relay, a jack panel is arranged on the outer surface of the socket body, a baffle is arranged on the upper edge of the shell, and the baffle protrudes out of the outer surface of the socket body and can prevent rainwater from entering jacks. The infrared thermal imaging sensor is arranged on the lower surface of the baffle plate above the jack position, and the temperature change of the surface of the external plug can be monitored in real time through non-contact acquisition of the temperature of the external plug, so that whether the external plug has an overheating or fire risk or not can be accurately identified; and when the surface temperature of the plug is greater than or equal to the set plug surface temperature threshold, the relay is controlled to cut off the power supply of the charging pile, so that the safety of the charging pile is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the charging pile safety technical field, especially related to a charging pile socket with non -contact temperature monitoring. BACKGROUND

[0002] With the popularity of two -wheeled electric vehicles, the use frequency of charging pile gradually increases. Temperature anomaly in the charging process is one of the main reasons leading to fire and other safety problems. Especially in the case of plug line aging damage, plug is not inserted tightly, charging plug short circuit, the plug is prone to high temperature problem, and then causes the plug to catch fire and causes fire. The existing two -wheeled electric vehicle charging pile over -temperature detection technology mainly detects the temperature inside the charging pile through the temperature sensor on the charging pile mainboard, and whether high temperature or fire exists around the charging pile is inferred. However, this way can only monitor the internal temperature of the charging pile, and cannot accurately judge the temperature of the external plug of the charging pile. Therefore, the prior art has great limitations in preventing fire caused by high temperature of the charging plug. SUMMARY

[0003] In order to solve the above problems, the utility model provides a charging pile socket with non -contact temperature monitoring. The specific technical scheme is as follows:

[0004] A charging pile socket with non -contact temperature monitoring, including socket main part and the matched use shell, infrared thermal imaging sensor, control module, relay, infrared thermal imaging sensor, relay is connected with control module respectively, the power supply of relay is connected with charging pile;

[0005] The outer surface of the socket main part is provided with a jack panel, the upper edge of the shell is provided with a baffle, and the baffle protrudes from the outer surface of the socket main part;

[0006] The infrared thermal imaging sensor is arranged on the lower surface of the baffle above the jack panel position, and is used for detecting the surface temperature of the plug connected with the jack on the jack panel;

[0007] The relay is used for controlling the on-off of the power supply of the charging pile;

[0008] The control module is used for collecting the surface temperature data of the plug detected by the infrared thermal imaging sensor, and controlling the relay to cut off the power supply of the charging pile when the surface temperature of the plug is greater than or equal to the set plug surface temperature threshold.

[0009] Preferably, the socket main part includes a socket assembly and a protection door, and the protection door is horizontally movably arranged between the socket assembly and the jack panel.

[0010] Preferably, a temperature sensor is further included, which is electrically connected with the control module, and is arranged inside the socket assembly for collecting the internal temperature of the socket assembly.

[0011] Preferably, a Hall induction device is further included, which is arranged on the path of horizontal movement of the protection door, and is electrically connected with the control module for generating a high level or low level signal when the protection door moves horizontally.

[0012] Preferably, the Hall induction device includes a Hall sensor and a magnet, the Hall sensor is arranged on the path of horizontal movement of the protection door, and is electrically connected with the control module, and the magnet is arranged on the protection door for approaching or moving away from the Hall sensor when the protection door moves horizontally.

[0013] Preferably, an audible and visual alarm is further included, which is connected with the control module for emitting an audible and visual alarm signal under the control of the control module when the surface temperature of the plug is greater than or equal to a set plug surface temperature threshold.

[0014] Preferably, a clock module is further included, which is connected with the control module for providing a clock source for the control module.

[0015] Preferably, a wireless communication module is further included, which is connected with the control module.

[0016] Preferably, an electric energy collection module is further included, which is connected with the control module.

[0017] Preferably, an AC / DC module is further included, which is connected with the control module for converting the power supply of the charging pile into a suitable voltage to provide a working power supply for the control module.

[0018] Compared with the prior art, the utility model has the advantages of the following:

[0019] The baffle of the utility model protrudes from the outer surface of the socket main body, can block rainwater from entering the jack, the infrared thermal imaging sensor is arranged on the lower surface of the baffle above the jack panel position, can collect the temperature of the external plug through non-contact, can monitor the temperature change of the surface of the external plug in real time, can accurately identify whether the external plug has the risk of overheating or fire, and can control the relay to cut off the power supply of the charging pile when the surface temperature of the plug is greater than or equal to a set plug surface temperature threshold, effectively improves the safety of the charging pile. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0021] Figure 1 It is the structural schematic diagram of the charging pile socket of the present application.

[0022] Figure 2 It is the principle schematic diagram of the charging pile socket of the present application.

[0023] Figure 3 It is the installation schematic diagram of the infrared thermal imaging sensor.

[0024] Figure 4 It is the installation position schematic diagram of the temperature sensor of the present application.

[0025] Figure 5 It is the installation position schematic diagram of the Hall induction device of the present application.

[0026] Among them, 1 - socket main body, 11 - jack panel, 12 - socket assembly, 13 - protection door, 2 - shell, 21 - baffle, 3 - infrared thermal imaging sensor, 4 - control module, 5 - temperature sensor, 6 - relay, 7 - Hall induction device, 71 - Hall sensor, 72 - magnet, 8 - audible and visual alarm, 81 - loudspeaker, 82 - warning light, 9 - wireless communication module, 10 - external plug, 40 - clock module, 41 - electric energy acquisition module, 42 - AC / DC module. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the description of the utility model, it needs to explain, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side" and so on the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model.

[0029] In the description of the utility model, several meanings are one or more, the meaning of multiple is more than two, greater than, less than, more than and so on are not included in the number, above, below, within and so on are included in the number.If the term "first", "second", "third" is described, it is only for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0030] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the term "installation", "connection", "connection", "setting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication between two elements.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation. The embodiments will be described below according to the overall structure of the utility model.

[0031] As shown in Figures 1-2 The utility model provides a kind of charging pile socket with non-contact temperature monitoring, including socket main body 1 and the matched use shell 2, infrared thermal imaging sensor 3, control module 4, relay 6;Infrared thermal imaging sensor 3, relay 6 are connected with control module 4 respectively;Relay 6 is connected with the 220V ac power supply of charging pile.Control module 4, relay 6 are set in the inside of matched use shell 2.

[0032] The outer surface of the socket body 1 is provided with a jack panel 11, and the upper edge of the shell 2 is provided with a baffle 21 which protrudes from the outer surface of the socket body 1 and can block rainwater from entering the jack 11. The infrared thermal imaging sensor 3 is arranged on the lower surface of the baffle 21 above the position of the jack 11, and is used to detect the surface temperature of the plug connected to the jack on the jack panel. The relay can control the on-off of the power supply of the charging pile under the control of the control module. The control module collects the surface temperature data of the plug detected by the infrared thermal imaging sensor, and controls the relay to cut off the power supply of the charging pile when the surface temperature of the plug is greater than or equal to the set plug surface temperature threshold. By collecting the temperature of the external plug 10 through the infrared thermal imaging sensor 3, the temperature change of the surface of the external plug 10 can be monitored in real time, so as to accurately identify whether the external plug 10 has a risk of overheating or fire, and effectively improve the safety of the charging pile.

[0033] It is worth noting that the jack panel 11 on the socket body 1 in the embodiment is provided as a five-hole socket structure, and the lower surface of the baffle 21 directly above the five-hole position is provided with an infrared thermal imaging sensor 3. The preferred model of the infrared thermal imaging sensor 3 is AMG8833 sensor, which is arranged directly above the five-hole position of the jack panel 11. The AMG8833 sensor communicates data with the control module 4 through an I2C interface. The visual angle of the AMG8833 sensor is set to 60°, and it is ensured that the upper surface of the external plug 10 falls completely within the visual range of the infrared thermal imaging sensor 3, thereby realizing the real-time monitoring function of the surface temperature of the external plug 10.

[0034] For example, as shown in Figure 3 The AMG8833 sensor is installed directly above the jack panel 11, forming an isosceles triangle with the upper edge and both sides of the jack panel 11. The vertical distance between the AMG8833 sensor and the external plug 10 is 53.35 mm, and the horizontal distance is 16.54 mm. When the external plug 10 is vertically inserted into the jack panel 10, it should be ensured that the AMG8833 sensor can accurately align with the plug surface. At this time, according to the Pythagorean theorem: θ = arctan(53.4 / 16.5) = 72.8°, the top angle of the triangle vertex position where the AMG8833 sensor is located is 180°-72.8°-72.8° = 34.4° < 60°, and the visual angle of the AMG8833 is 60°. At this time, the horizontal plane of the entire external plug 10 can be within the visual range of the AMG8833 sensor.

[0035] As shown in Figures 4-5 The socket body 1 of the embodiment includes a socket assembly 12 and a protection door 13, which is movably arranged between the socket assembly 12 and the jack panel 11, and can prevent foreign matter from directly entering the inside of the socket assembly 12 through the jack 11, thereby avoiding safety accidents such as electric shock and electric shock.

[0036] The embodiment also comprises a temperature sensor 5, which is electrically connected with the control module 4, and is arranged inside the socket assembly 12 to collect the internal temperature of the socket assembly 12. Specifically, the temperature sensor 5 is a thermistor, the sensing end of which is arranged inside the socket body 1, and the thermistor is electrically connected with the control module 4. In addition, the thermistor is preferably a negative temperature coefficient thermistor, the resistance value of which decreases with the increase of temperature, and has the characteristics of long service life, and can support long-time stable operation. An opening is designed on one side of the socket assembly 12, and the sensing head of the thermistor is completely inserted into the opening on one side of the socket assembly 10, so as to ensure that the thermistor is close to the inside of the socket assembly 10 and collects the internal temperature of the socket assembly 10.

[0037] When the temperature sensor 5 collects the temperature inside the socket assembly 12 greater than or equal to the preset internal temperature threshold of the socket assembly, the control module 4 controls the relay 6 to disconnect the power supply of the charging pile.

[0038] Further, the embodiment also comprises a Hall induction device 7, which is arranged on the path of horizontal movement of the protection door 13, and is electrically connected with the control module 4. When the protection door 13 moves horizontally, the Hall induction device 7 can generate a high-level or low-level signal.

[0039] As a preferred embodiment, the Hall induction device 7 comprises a Hall sensor 71 and a magnet 72. The Hall sensor 71 is installed on the path of horizontal movement of the protection door 13, and is electrically connected with the control module 4. The magnet 72 is installed on the protection door 13, and is used to approach or move away from the Hall sensor 71 when the protection door 13 moves horizontally.

[0040] Specifically, the Hall sensor 71 has a Schmitt trigger characteristic, which can eliminate the oscillation of the output signal and provide a stable switching state. When the protection door 13 is in a closed state, the horizontal distance between the magnet 72 and the Hall sensor 71 is the largest. When the external plug 10 is inserted into the inside of the jack panel 11, the protection door 13 drives the magnet 72 to gradually translate to the directly above of the Hall sensor 71. When the magnet 72 gradually approaches the Hall sensor 71, the Hall sensor 71 will detect the change of the magnetic field, and the output signal will switch from high level to low level. When the external plug 10 is pulled out, the protection door 13 drives the magnet 72 to gradually move away, and the output signal of the Hall sensor 71 switches from low level to high level.

[0041] When the control module 4 receives the low level of the Hall sensor 71, it indicates that the external plug 10 is inserted into the inside of the jack panel 11, and then the control module 4 controls the relay 6 to close, so that the power supply of the charging pile is connected, and the two-wheeled electric vehicle connected with the external plug 10 is charged. When the control module 4 receives the high level of the Hall sensor 71, it indicates that the external plug 10 is pulled out from the jack panel 11, and then the control module 4 controls the relay 6 to disconnect, so as to disconnect the power supply of the charging pile.

[0042] In addition, the utility model still includes sound light alarm 8 and wireless communication module 9, sound light alarm 8 and wireless communication module 9 are connected with control module 4 electricity respectively, sound light alarm 8 includes the loudspeaker 81 of setting at the bottom of shell 2, warning light 82 of setting at the front surface of shell 2, when the temperature value that infrared thermal imaging sensor 3 or temperature sensor 5 real-time acquisition is greater than or equal to corresponding threshold value, control module 4 controls loudspeaker 81 to send alarm sound, control warning light 82 to flash warning light, remind the user of charging or nearby personnel to deal with temperature abnormal problem in time.

[0043] Wireless communication module 9 is preferably 4G communication module, and control module 4 can send the temperature data collected by infrared thermal imaging sensor 3 or temperature sensor 5 to the upper computer connected externally through wireless communication module 9, to facilitate the temperature abnormality cause analysis of management personnel.

[0044] The embodiment also includes clock module 40, electric energy acquisition module 41, AC / DC module 42, clock module 40 is connected with control module 4, and is used to provide clock source for control module 4.Electric energy acquisition module 41 is connected with control module 4.AC / DC module 42 is connected with control module 4, and is used to convert the power supply of charging pile into suitable voltage to provide working power supply for control module 4.

[0045] The working principle of the utility model is as follows:

[0046] The charging socket of the utility model is in the dormant state when not working, when Hall sensor 71 detects that there is external plug 10 insertion, control module 4 controls relay to close and exports the 220V alternating current power supply of charging pile to charge the load connected with external plug 10.

[0047] Infrared thermal imaging sensor 3 collects the surface temperature of external plug 10, and transmits the temperature data collected to control module 4.Meanwhile, temperature sensor 5 collects the temperature inside socket assembly 12, and transmits the temperature data collected to control module 4.

[0048] When the surface temperature of external plug 10 is greater than or equal to the set plug surface temperature threshold value or temperature sensor 5 collects the temperature inside socket assembly 12 and is greater than or equal to the preset socket assembly internal temperature threshold value, control module 4 controls sound light alarm to send sound light alarm signal.

[0049] When the surface temperature of the external plug 10 is greater than or equal to the set plug surface temperature threshold and reaches a preset time T1, or the temperature sensor 5 collects the temperature inside the socket assembly 12 greater than or equal to the preset socket assembly internal temperature threshold and reaches a preset time T2, the control module 4 controls the relay 6 to cut off the power supply of the charging pile, preventing the external plug 10 from catching fire or the socket overheating causing a fire. Wherein, T1 and T2 can be set, which can be the same or different, for example, T1 and T2 are both set to 2 minutes.

[0050] The electric energy collection module collects the power output by the charging pile and transmits it to the control module 4, which uploads the power output by the charging pile, the temperature of the surface of the external plug 10, and the temperature inside the socket assembly 12 to the cloud server in real time through the wireless transmission module.

[0051] The utility model discloses a low -power consumption design, when judging that there is external plug 10 insertion through hall sensor 71, control module 4 wakes up infrared thermal imaging sensor 3 and temperature sensor 4 work, and opens temperature detection, opens power output, when hall sensor 71 detects that external plug 10 pulls out, control module 4 controls relay 6 to disconnect power output, and infrared thermal imaging sensor 3 and temperature sensor 4 stop temperature detection and enter hibernate mode.

[0052] The prior art can only monitor the internal temperature of the charging pile, and cannot accurately identify temperature abnormalities of the external plug, resulting in failure to effectively prevent fires caused by plug overheating or short circuit. The utility model installs infrared thermal imaging sensors (such as AMG8833) outside the charging pile socket and NTC thermistors inside the charging pile, which can monitor the temperature changes on the surface of the plug in real time while detecting the internal temperature of the charging pile, accurately identify whether the plug is overheating or at risk of fire, and effectively improve the safety of the charging pile.

[0053] Traditional temperature monitoring may require direct contact with the plug or the use of contact temperature sensors. Due to installation problems in actual use, it is impossible to ensure that the sensor can accurately contact the plug surface, resulting in inaccurate measurement results and false judgments. Non-contact detection using AMG8833 infrared thermal imaging sensors avoids physical damage or contact interference to the plug, reduces maintenance costs of the equipment, and improves the reliability of the strategy.

[0054] It can be understood that the socket body 1 in the embodiment is provided with two socket panels 11, and the two five-hole socket structures corresponding to the two socket panels 11 can be controlled by the same control module 4 and share a set of audible and visual alarms 8 and wireless communication modules 9, but each five-hole socket structure needs to be provided with a set of infrared thermal imaging sensors 3, temperature sensors 5, relays 6 and hall effect devices 7 to realize individual detection of each five-hole socket.

[0055] The foregoing description of the specific exemplary embodiments of the present application is presented for the purposes of illustration and description. It is not intended to be a limitation on the present application, as described herein. It will be apparent to those skilled in the art that various modifications, adaptations and variations can be made within the scope of the present application, which is set forth in the following claims.

Claims

1. A charging post socket with non-contact temperature monitoring, characterized in that, The socket body is provided with a jack panel, the upper edge of the shell is provided with a baffle, and the baffle protrudes from the outer surface of the socket body. The infrared thermal imaging sensor is arranged on the lower surface of the baffle above the position of the jack panel, and is used for detecting the surface temperature of the plug connected with the jack on the jack panel. The relay is used for controlling the on-off of the power supply of the charging pile. The control module is used for collecting the surface temperature data of the plug detected by the infrared thermal imaging sensor, and controlling the relay to cut off the power supply of the charging pile when the surface temperature of the plug is greater than or equal to the set plug surface temperature threshold. The socket body comprises a socket assembly and a protection door, and the protection door is movably arranged between the socket assembly and the jack panel.

2. The charging post socket with non-contact temperature monitoring according to claim 1, characterized in that, Further comprising a temperature sensor, the temperature sensor is electrically connected with the control module, the temperature sensor is arranged in the socket assembly, and is used for collecting the internal temperature of the socket assembly.

3. The charging post socket with non-contact temperature monitoring according to claim 2, characterized in that, Further comprising a Hall induction device, which is arranged on the path of horizontal movement of the protection door and is electrically connected with the control module, and is used for generating high level or low level signal when the protection door moves horizontally.

4. The charging post socket with non-contact temperature monitoring of claim 2, wherein, The Hall induction device comprises a Hall sensor and a magnet, the Hall sensor is installed on the path of horizontal movement of the protection door and is electrically connected with the control module, and the magnet is installed on the protection door and is used for approaching or moving away from the Hall sensor when the protection door moves horizontally.

5. The charging post socket with non-contact temperature monitoring of claim 4, wherein, Further comprising an audible and visual alarm, the audible and visual alarm is connected with the control module, and is used for emitting audible and visual alarm signal under the control of the control module when the surface temperature of the plug is greater than or equal to the set plug surface temperature threshold.

6. The charging post socket with non-contact temperature monitoring of claim 1, wherein, Further comprising a clock module, the clock module is connected with the control module, and is used for providing clock source for the control module.

7. The charging post socket with non-contact temperature monitoring of claim 1, wherein, Further comprising a wireless communication module, the wireless communication module is connected with the control module.

8. The charging post socket with non-contact temperature monitoring of claim 1, wherein, Further comprising an electric energy collection module, the electric energy collection module is connected with the control module.

9. The charging post socket with non-contact temperature monitoring of claim 1, wherein, Further comprising an AC / DC module, the AC / DC module is connected with the control module, and is used for converting the power supply of the charging pile into appropriate voltage to provide working power supply for the control module.

10. The charging post socket with non-contact temperature monitoring of claim 1, wherein, ​

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