Intelligent charging device system

Abstract

An intelligent charging device system comprises an input end, the input end is connected with a power supply end point L11 through a circuit breaker QF, the power supply end point L11 is connected with a contact at one end of a contactor KM, a contact at the other end of the contactor KM is connected with one end of a coil end of a thermal relay KH, and the other end of the coil end of the thermal relay KH is used for being connected with a socket; the system further comprises a time control switch SK, the input end of the time control switch SK is connected with the power supply end point L11, the output end of the time control switch SK is connected with a normally-closed contact of a gateway WG, the normally-closed contact of the gateway WG is further connected with the coil end of the contactor KM, and the coil end of the contactor KM is further connected with a normally-closed contact of the thermal relay KH.

Description

Technical Field

[0001] This utility model relates to the field of charging devices, and in particular to an intelligent charging device system. Background Technology

[0002] Currently, household charging devices generally use plugs that are directly inserted into sockets, making them plug-and-play.

[0003] Existing solutions utilize plugs and sockets to charge electrical devices in real time. However, current household electrical systems only provide sockets (charging interfaces) and lack protection functions and real-time charging status monitoring capabilities. Utility Model Content

[0004] To address the aforementioned issues, this technical solution provides an intelligent charging device system.

[0005] To achieve the above objectives, the technical solution is as follows:

[0006] A smart charging device system includes an input terminal, which is connected to a power terminal L11 via a circuit breaker QF. The power terminal L11 is connected to one contact of a contactor KM, and the other contact of the contactor KM is connected to one end of the coil of a thermal relay KH. The other end of the coil of the thermal relay KH is used to connect to a socket.

[0007] It also includes a time control switch SK, whose input terminal is connected to the power supply terminal L11 and whose output terminal is connected to the normally closed contact of the gateway WG. The normally closed contact of the gateway WG is also connected to the coil terminal of the contactor KM, and the coil terminal of the contactor KM is also connected to the normally closed contact of the thermal relay KH.

[0008] In some embodiments, the voltage acquisition terminals of the gateway WG are connected to the three-phase voltage via fuses, and the current acquisition terminals are connected to current transformers.

[0009] In some embodiments, the gateway WG is provided with a communication port for communicating with peripherals.

[0010] In some embodiments, the communication network port is RS485.

[0011] In some embodiments, the input terminal of the time control switch SK is also provided with a fuse FU.

[0012] The beneficial effects of this application are:

[0013] When the time switch is set to the charging period, the switch is closed. Since the contacts of the gateway and the thermal relay are normally closed, the coil of the contactor is energized, and the contactor terminals are connected. At this time, after the circuit breaker is closed, the mains power supplies power to multiple sockets through the contactor terminals and the thermal relay coil. When the thermal relay detects that the current temperature is too high, its terminals open, and the contactor terminals also open, thus achieving protection. In addition, when the gateway detects a current or voltage overload, the gateway terminals will also open, thus achieving protection. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the gateway structure according to an embodiment of the present utility model. Detailed Implementation

[0018] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] Please refer to Figure 1-3 As shown, an intelligent charging device system includes an input terminal, which is connected to a power terminal L11 via a circuit breaker QF. The power terminal L11 is connected to one contact of a contactor KM, and the other contact of the contactor KM is connected to one end of the coil of a thermal relay KH. The other end of the coil of the thermal relay KH is used to connect to a socket.

[0020] It also includes a time control switch SK, whose input terminal is connected to the power supply terminal L11 and whose output terminal is connected to the normally closed contact of the gateway WG. The normally closed contact of the gateway WG is also connected to the coil terminal of the contactor KM, and the coil terminal of the contactor KM is also connected to the normally closed contact of the thermal relay KH.

[0021] When the time switch is set to the charging period, the switch is closed. Since the contacts of the gateway and the thermal relay are normally closed, the coil of the contactor is energized, and the contactor terminals are connected. At this time, after the circuit breaker is closed, the mains power supplies power to multiple sockets through the contactor terminals and the thermal relay coil. When the thermal relay detects that the current temperature is too high, its terminals open, and the contactor terminals also open, thus achieving protection. In addition, when the gateway detects a current or voltage overload, the gateway terminals will also open, thus achieving protection.

[0022] With a simple principle and low manufacturing cost, this system can monitor the charging status of electrical equipment in real time by adding a time control switch and gateway device. It can effectively protect against overheating, overcurrent, and short circuits, and can select charging times based on local off-peak electricity hours to make rational use of resources. This solves the unreliability of existing charging devices, thereby effectively ensuring the safe and reliable operation of charging equipment.

[0023] In this embodiment, the voltage acquisition terminals of the gateway WG are connected to the three-phase voltage via fuses, and the current acquisition terminals are connected to current transformers.

[0024] In this embodiment, the gateway WG is provided with a communication port for communicating with peripheral devices.

[0025] In this embodiment, the communication network port is RS485.

[0026] In this embodiment, the input terminal of the time control switch SK is also equipped with a fuse FU.

[0027] The control circuit principle of this device is as follows: After connecting the device to the mains power, the QF switch is closed first, and the L11 power supply is energized. When the time switch is set to the charging period, the input and output terminals on the controller SK are connected, and the contactor KM coil is energized and closed. At this time, the charging sockets are all in an energized state. If a charging device plug is connected, charging can begin. If the charging device malfunctions, the thermal relay KH will detect abnormal heating and the KH auxiliary contact will disconnect, which can prevent fire.

[0028] Because this device is equipped with a gateway WG, it monitors the charging current status of the charging equipment in real time through current transformers TAA, TAB, and TAC. It can also access the power cloud platform via RS485 communication. Once an abnormality is detected, the contacts of the gateway WG can be remotely disconnected via a mobile APP to de-energize the control circuit and de-energize the contactor KM coil, thereby ensuring the safety of the charging equipment.

[0029] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. An intelligent charging device system, characterized in that, It comprises an input end connected with a power supply end L11 through a circuit breaker QF, one end contact of a contactor KM connected with one end of a coil end of a thermal relay KH, and the other end of the coil end of the thermal relay KH used for connection with a socket; It also comprises a time control switch SK, an input end of which is connected with the power supply end L11, and an output end of which is connected with a normally closed contact of a gateway WG, the normally closed contact of the gateway WG also connected with a coil end of the contactor KM, and the coil end of the contactor KM also connected with a normally closed contact of the thermal relay KH.

2. The intelligent charging device system of claim 1, wherein: The voltage collection end of the gateway WG is connected with three-phase voltage through a fuse respectively, and the current collection end is connected with a current transformer respectively.

3. The smart charging device system of claim 2, wherein: The gateway WG is provided with a communication network port for communication with external devices.

4. The smart charging device system of claim 3, wherein: The communication network port is RS485.

5. The smart charging device system of claim 1, wherein: The input end of the time control switch SK is also provided with a fuse FU.

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