CN219018060U

CN219018060U - Grounding device

Info

Publication number: CN219018060U
Application number: CN202223068905.1U
Authority: CN
Inventors: 李繁盛
Original assignee: Yongkang Lechong Intelligent Technology Co ltd
Current assignee: Yongkang Lechong Intelligent Technology Co ltd
Priority date: 2022-11-19
Filing date: 2022-11-19
Publication date: 2023-05-12
Anticipated expiration: 2032-11-19

Abstract

The utility model belongs to the technical field of new energy automobile charging equipment, in particular to a grounding device, which comprises a main body, wherein a plug and three jacks are arranged on the main body, a circuit board assembly is arranged in the main body, a live wire and a zero wire which are communicated with the plug and the three jacks are arranged on the circuit board assembly, a ground wire assembly and a switching relay are also arranged on the circuit board assembly, one end of the ground wire assembly is connected with the three jacks, the other end of the ground wire assembly is connected to the zero wire through the switching relay, and a resistor is arranged on the ground wire assembly; the zero line is provided with a detection chip which is connected with the switching relay; when the zero line is electrified, the detection chip arranged on the zero line detects an electrified signal, the detection chip enables the switching relay to be electrified, the switching relay works to enable the other end of the ground wire assembly to be switched to the fire wire, the switching relay is arranged on the zero line, after the household socket is connected reversely with the zero line, the ground wire can be connected to the fire wire by the switching relay, and at the moment, the fire wire is not electrified, so that the ground wire is prevented from being connected with the electrified line.

Description

Grounding device

Technical Field

The utility model belongs to the technical field of new energy automobile charging equipment, and particularly relates to a grounding device.

Background

Due to the popularization of new energy vehicles, more and more household vehicles select new energy vehicles, namely, some new energy vehicles which are purely electric and do not need gasoline. Although the new energy vehicle does not need to be filled with gasoline, charging is still a problem. Particularly, when no special charging pile is arranged in the home, a plurality of new energy vehicles can select a more rapid portable charging gun, and one end of the charging gun is required to be inserted into a socket, and the other end of the charging gun is required to be inserted into the vehicle for use; for the safety of charging, this kind of rifle that charges needs the socket to have ground wire when using, and when the ground wire detection module on the rifle that charges detects the socket and does not have the ground wire, the rifle that charges just can not normally charge. And many old houses are two zero live wires, and the socket lacks the ground wire, leads to unable normal use.

The ground device is characterized in that the ground device is provided with a plurality of sockets, each socket is connected with a power supply, the power supply is connected with a power supply, and the power supply is connected with a power supply.

However, there is a problem that the live wire and the neutral wire in the ground fault are exchanged when the ground fault is used due to the reverse connection of the live wire and the neutral wire, the ground wire originally connected to the neutral wire for spoofing the ground wire detection module on the charging gun is connected to the live wire, and the ground wire and the live wire are connected to generate potential safety hazards, so that the ground fault which can be used by the socket regardless of whether the neutral wire and the live wire are connected reversely is needed.

Disclosure of Invention

The utility model aims to provide a grounding device which has a simple structure and can be used regardless of whether a zero and live wire is connected reversely.

The purpose of the utility model is realized in the following way:

the utility model provides a ground connection treasured, includes the main part, be provided with the plug that is used for connecting domestic socket and offer the three jacks that supply the rifle plug to connect on the main part, the inside circuit board subassembly that is provided with of main part, be equipped with live wire and the zero line of intercommunication plug and three jacks on the circuit board subassembly, still be provided with ground wire subassembly and switching relay on the circuit board subassembly, three jacks are connected to ground wire subassembly one end, and the other end passes through switching relay and connects on the zero line, be provided with the resistance on the ground wire subassembly; a detection chip is arranged on the zero line and is connected with the switching relay; when the zero line is electrified, a detection chip arranged on the zero line detects an electrified signal, the detection chip enables the switching relay to be electrified, and the switching relay works to enable the other end of the ground wire assembly to be switched to the live wire.

In the utility model, two resistors are arranged on the circuit board assembly and are connected in series.

In the utility model, a display screen is further arranged on the circuit board assembly, a display hole is formed in the main body, and the display screen is exposed out of the main body through the display hole.

According to the utility model, a transparent cover is arranged outside the main body, and the display screen is positioned in the transparent cover.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

the utility model relates to a grounding device capable of enabling a socket without a ground wire to charge a new energy vehicle, which structurally comprises a main body, wherein one end of the main body is connected with a plug, the plug is used for being connected with a household electrified socket, three jacks are formed in the main body and are used for being inserted with plugs of a portable charging gun, a circuit board assembly used for communicating the plugs with the three jacks is arranged in the main body, a zero line, a live wire and a ground wire are arranged in the circuit board assembly, one end of the ground wire is connected with a ground wire jack on the three jacks, the other end of the ground wire is connected to the live wire or the zero line through a relay, when the relay is not electrified, the ground wire is connected to the zero line, and when the switching relay is electrified, the switching relay can connect the ground wire to the live wire.

The normal socket zero-live wire connection mode is left zero fire and right fire, and zero-live wire is electrified; when the zero and live wires of the household socket are correctly connected, the zero wire in the socket is communicated with the zero wire in the application, and the live wire in the socket is communicated with the live wire in the application, so that the zero wire is not electrified, a switching relay communicated with the zero wire is not electrified, and the ground wire is connected to the zero wire, so that the product can be normally used; when the zero live wire of domestic socket connects reversely, the live wire in the socket is put through with the live wire in this application, lead to zero live wire to exchange, originally connect on the live wire will be received to the ground wire on the live wire, the ground wire live wire contacts, will produce the potential safety hazard, this application will switch the relay and set up on the live wire, after domestic socket zero live wire connects reversely, can lead to not having the live wire circular telegram, will make the switching relay work after the zero line circular telegram, when the switching relay just can connect the ground wire to originally on the live wire, the live wire is uncharged this moment, thereby avoid ground wire and electrified line connection. Therefore, the utility model can be normally used no matter whether the zero and live wires of the household socket are connected reversely, and potential safety hazard is avoided.

The series resistor on the ground wire is used for simulating the effect of real grounding and is used for cheating the ground wire detection module on the charging gun, so that the socket can be charged normally without the ground wire, even if electric leakage exists, the socket can be led out through the zero line, and potential safety hazards cannot be caused.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic illustration of the structure of the present utility model with the transparent cover removed.

Fig. 3 is an exploded view of the present utility model.

Fig. 4 is a schematic circuit diagram of the ground line of the present utility model when the ground line is connected to the zero line.

Fig. 5 is a schematic circuit diagram of the utility model when the ground wire is connected to the live wire.

The meaning indicated by the reference numerals in the figures:

1-a main body; 2-plug; 3-three jacks; 4-a circuit board assembly; 5-live wire; 6-zero line; 7-switching a relay; 8-resistance; 9-a display screen; 10-display holes; 11-a transparent cover; 12-ground wire.

Detailed Description

The utility model is further described with reference to the following specific examples:

the utility model provides a ground connection treasured, includes main part 1, be provided with on main part 1 and be used for connecting domestic socket's plug 2 and offer three jack 3 that supply charging gun plug 2 to connect, the inside circuit board subassembly 4 that is provided with of main part 1, be equipped with live wire 5 and zero line 6 of intercommunication plug 2 and three jack 3 on the circuit board subassembly 4, still be provided with ground wire 12 subassembly and switching relay 7 on the circuit board subassembly 4, three jack 3 is connected to ground wire 12 subassembly one end, and the other end passes through switching relay 7 to be connected on zero line 6, be provided with resistance 8 on the ground wire 12 subassembly; a detection chip is arranged on the zero line 6 and is connected with the switching relay 7; when the zero line 6 is electrified, a detection chip arranged on the line of the zero line 6 detects an electrified signal, the detection chip enables the switching relay 7 to be electrified, and the switching relay 7 works to enable the other end of the ground wire 12 assembly to be switched to the live wire 5.

The utility model relates to a grounding device capable of enabling a socket without a ground wire 12 to charge a new energy vehicle, which structurally comprises a main body 1, wherein one end of the main body 1 is connected with a plug 2, the plug 2 is used for being connected with a household electrified socket, three jacks 3 are formed in the main body 1, the three jacks 3 are used for being inserted into the plug 2 of a portable charging gun, a circuit board assembly 4 used for communicating the plug 2 with the three jacks 3 is arranged in the main body 1, a zero wire 6, a live wire 5 and a ground wire 12 are arranged in the circuit board assembly 4, one end of the ground wire 12 is connected with the ground wire 12 jack on the three jacks 3, the other end of the ground wire 12 is connected with the live wire 5 or the zero wire 6 through a relay, when the relay is not electrified, the ground wire 12 is connected with the zero wire 6, and when the switching relay 7 is electrified, the switching relay 7 can connect the ground wire 12 with the live wire 5.

The normal socket zero fire wire 5 is connected in a left zero fire and right fire mode, and the zero wire 6 is not electrified, and the zero wire 5 is electrified; when the zero line 5 of the household socket is correctly connected, the zero line 6 in the socket is communicated with the zero line 6 in the application, and the live line 5 in the socket is communicated with the live line 5 in the application, because the zero line 6 is not electrified, the switching relay 7 communicated with the zero line 6 is not electrified, and the ground wire 12 is connected to the zero line 6, so that the product can be normally used; when the zero live wire 5 of the household socket is connected reversely, the zero line 6 in the socket is connected with the live wire 5 in the application, the live wire 5 in the socket is connected with the zero line 6 in the application, the zero live wire 5 is exchanged, the ground wire 12 originally connected to the zero line 6 is connected to the live wire 5, the ground wire 12 live wire 5 contacts with each other, the potential safety hazard is generated, the switching relay 7 is arranged on the zero line 6, after the zero live wire 5 of the household socket is connected reversely, the zero line 6 without electricity is electrified, the switching relay 7 can work after the zero line 6 is electrified, and the switching relay 7 can connect the ground wire 12 to the original live wire 5, at the moment, the live wire 5 is not electrified, and therefore the ground wire 12 is prevented from being connected with an electrified line. Therefore, the utility model can be normally used no matter whether the zero line 5 of the household socket is reversely connected or not, and potential safety hazard is avoided.

The series resistor 8 on the ground wire 12 is used for simulating the effect of real grounding and is used for cheating the ground wire 12 detection module on the charging gun, so that the socket can be charged normally without the ground wire 12, even if electric leakage exists, the electric leakage can be led out through the zero line 6, and potential safety hazards cannot be caused.

In the utility model, two resistors 8 are arranged on the circuit board assembly 4, and the two resistors 8 are connected in series. The resistance of the resistor 8 is similar to the ground resistance, so that the grounding effect of the ground wire 12 can be simulated.

In the utility model, the circuit board assembly 4 is further provided with a display screen 9, the main body 1 is provided with a display hole 10, and the display screen 9 is exposed out of the main body 1 through the display hole 10. The display screen 9 can display information whether the zero line 5 is connected reversely.

Further, a transparent cover 11 is arranged outside the main body 1, and the display screen 9 is positioned in the transparent cover 11. The transparent cover 11 is used to protect the display screen 9 and does not affect the display effect of the display screen 9.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A ground connection treasured, its characterized in that: the novel household socket comprises a main body (1), wherein a plug (2) for connecting a household socket is arranged on the main body (1) and three jacks (3) for connecting a charging gun plug (2) are formed, a circuit board assembly (4) is arranged inside the main body (1), a live wire (5) and a zero wire (6) which are communicated with the plug (2) and the three jacks (3) are arranged on the circuit board assembly (4), a ground wire (12) assembly and a switching relay (7) are further arranged on the circuit board assembly (4), one end of the ground wire (12) assembly is connected with the three jacks (3), the other end of the ground wire (12) assembly is connected onto the zero wire (6) through the switching relay (7), and a resistor (8) is arranged on the ground wire (12) assembly; a detection chip is arranged on the zero line (6) and is connected with a switching relay (7); when the zero line (6) is electrified, a detection chip arranged on the line of the zero line (6) detects an electrified signal, the detection chip electrifies the switching relay (7), and the switching relay (7) works to switch the other end of the ground wire (12) component to the live wire (5).

2. A grounding strap as defined in claim 1, wherein: two resistors (8) are arranged on the circuit board assembly (4), and the two resistors (8) are connected in series.

3. A grounding strap as defined in claim 2, wherein: the circuit board assembly (4) is further provided with a display screen (9), the main body (1) is provided with a display hole (10), and the display screen (9) is exposed out of the main body (1) through the display hole (10).

4. A grounding strap according to claim 3, characterized in that: a transparent cover (11) is arranged outside the main body (1), and the display screen (9) is positioned in the transparent cover (11).