Novel anti-electricity-stealing device for power socket

Abstract

The utility model discloses a novel power socket electricity stealing prevention device, and relates to the technical field of burglar alarm equipment. The anti-theft electric appliance comprises an anti-theft electric appliance body, a control mainboard is arranged in the anti-theft electric appliance body, a power supply relay, a power supply conversion module, a detection conversion circuit and a current transformer are arranged on the control mainboard, one end of the power supply relay is electrically connected with the power supply conversion module, and the other end of the power supply relay is electrically connected with the detection conversion circuit. The current transformer is electrically connected with the detection conversion circuit, the power-on button is arranged on the anti-theft electric appliance body and electrically connected with the power relay and the power conversion module, when a load connected with the anti-theft electric appliance is pulled out to cause power failure, power supply is stopped, power supply can be recovered after the power-on button is pressed down, and therefore electricity stealing is effectively prevented.

Description

Technical Field

[0001] The utility model relates to a device for preventing electricity theft of a new type of power socket, and belongs to the technical field of anti-theft devices. Background Art

[0002] In daily life, a socket strip is a commonly used power connection device. By using the socket strip, the electrical distance can be conveniently extended, bringing convenience to daily electricity use.

[0003] The socket strip is usually used indoors, but there are also cases where it is used outdoors, such as charging an electric vehicle. When the socket strip is used outdoors, there is a situation of electricity theft, such as pulling out the charging cable of the electric vehicle and inserting the charging cable of the thief, which increases the electricity cost of the user. Therefore, a device for preventing electricity theft of a new type of power socket is proposed to solve the problems existing in the prior art. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for preventing electricity theft of a new type of power socket for the defects or deficiencies in the prior art. When the load connected to the anti-theft electrical appliance is pulled out and the power is cut off, the power supply will stop, and the power supply can be restored only by pressing the power-on button, thus effectively preventing the occurrence of electricity theft.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions: It includes an anti-theft electrical appliance main body 1, a control main board is arranged inside the anti-theft electrical appliance main body 1, a power relay 9, a power conversion module 10, a detection conversion circuit 11, and a current transformer 12 are arranged on the control main board. One end of the power relay 9 is electrically connected to the power conversion module 10, one end is electrically connected to the detection conversion circuit 11, the current transformer 12 is electrically connected to the detection conversion circuit 11, and a power-on button 2 is arranged on the anti-theft electrical appliance main body 1 and is electrically connected to the power relay 9 and the power conversion module 10.

[0006] Further, an input power supply terminal 3 is arranged on the anti-theft electrical appliance main body 1, and the output end of the input power supply terminal 3 is electrically connected to the power-on button 2 and the power conversion module 10.

[0007] Further, a load output terminal 5 is also arranged on the anti-theft electrical appliance main body 1. The load output terminal 5 is electrically connected to the current transformer 12, and the load output terminal 5 is electrically connected to the input power supply terminal 3 to form a loop, and current detection is performed through the current transformer 12.

[0008] Further, the input power supply terminal 3 is connected to the power supply 4.

[0009] Further, the load output terminal 5 is connected to the cable 8.

[0010] After adopting the above technical solution, the beneficial effects of the present utility model are as follows: When the load connected to the anti-theft electrical appliance is unplugged and the power is cut off, the power supply will stop, and the power supply can only be restored by pressing the power-on button, thus effectively preventing the occurrence of electricity theft. Brief Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 is the installation schematic diagram of the present utility model;

[0013] Figure 2 is the circuit principle schematic diagram of the present utility model.

[0014] Description of the reference numerals: Anti-theft electrical appliance main body 1, power-on button 2, input power supply terminal 3, power supply 4, load output terminal 5, terminal socket 6, electrical load 7, cable 8, power relay 9, power conversion module 10, detection conversion circuit 11, current transformer 12. Detailed Embodiment

[0015] See Figure 1 - Figure 2As shown in the figure, the technical solution adopted in this specific embodiment is as follows: It includes an anti-theft electrical appliance main body 1, and a control main board is arranged inside the anti-theft electrical appliance main body 1. A power relay 9, a power conversion module 10, a detection conversion circuit 11, and a current transformer 12 are arranged on the control main board. One end of the power relay 9 is electrically connected to the power conversion module 10, and one end is electrically connected to the detection conversion circuit 11. The current transformer 12 is electrically connected to the detection conversion circuit 11. An energization button 2 is arranged on the anti-theft electrical appliance main body 1 and is electrically connected to the power relay 9 and the power conversion module 10. In this embodiment, the anti-theft electrical appliance main body plays an intelligent current on-off control role. When in use, the anti-theft electrical appliance main body is installed in a locked distribution box indoors or outdoors, and the terminal socket is placed outdoors for use. Press the energization button, the power relay is energized and attracted, and the entire circuit is conducted to supply power to the terminal socket. The electrical load can be plugged into the terminal socket for use. The current transformer detects the load operation, and the detection conversion circuit that supplies power through the power conversion module makes the power relay maintain the energized self-locking state. After releasing the energization button, the circuit remains conducting, and the electrical load operates normally; when the electrical load is manually unplugged, the current transformer cannot detect the load current, resulting in power loss. The detection conversion circuit also loses power at the same time, and the power relay in the self-locking state also loses power and disconnects, and the entire circuit is powered off. Even if the electrical load is plugged back in, the circuit cannot resume power supply. Only when the energization button is pressed again, the power relay is re-energized and attracted, the circuit is conducted, and the electrical load can continue to be energized for use. In this way, the anti-theft power function is realized. The overall structure is simple, and the anti-theft power effect is good, allowing users to avoid power theft.

[0016] More specifically, an input power terminal 3 is arranged on the anti-theft electrical appliance main body 1. The output end of the input power terminal 3 is electrically connected to the energization button 2 and the power conversion module 10. The input power terminal is the input connection port for the external power supply and is connected to the energization button and the power conversion module. When the energization button is pressed, the input power terminal and the internal circuit are conducted to realize power on.

[0017] More specifically, a load output terminal 5 is also arranged on the anti-theft electrical appliance main body 1. The load output terminal 5 is electrically connected to the current transformer 12, and the load output terminal 5 is electrically connected to the input power terminal 3 to form a loop, and current detection is carried out through the current transformer 12. The load output terminal is the output end of the anti-theft circuit. When the electrical load is unplugged, the current transformer detects that the load current disappears, the circuit is powered off, and the load output terminal has no power output, and the terminal socket is not powered. The newly connected electrical load cannot be energized for use.

[0018] More specifically, the input power terminal 3 is connected to the power supply 4.

[0019] More specifically, the load output terminal 5 is connected to the cable 8. Since the anti-theft electrical appliance main body is installed indoors or in a distribution cabinet with a lock, a cable needs to be connected to connect to the terminal socket, which is convenient for the electrical load to be connected and used.

[0020] The working principle of the present utility model: The anti-theft electrical appliance main body 1 is installed indoors or in a distribution box with a lock, and the power supply 4 supplies power. After pressing the power-on button 2, the power relay 9 is attracted and the circuit is connected. The load output terminal 5 is powered and outputs to the terminal plug 6 through the cable 8. At this time, the electrical load 7 is plugged into the terminal socket 6 to supply power. During the normal power supply process, the current transformer 12 detects the load operation, and the detection conversion circuit 11 of the power conversion module 10 supplies power to keep the power relay 9 in the power-on self-locking state. After releasing the power-on button 2, the circuit remains conducting, and the electrical load 7 operates normally; when the electrical load 7 is manually unplugged, the current transformer 12 cannot detect the load current, resulting in power loss. The detection conversion circuit also loses power, and the power relay 9 in the self-locking state also loses power and disconnects, resulting in the load output terminal 5 being de-energized, and the terminal socket connected to the cable is also de-energized, thus achieving the anti-theft power effect. When the power-on button 2 is pressed again, the circuit is re-conducted, the load output terminal 5 is powered, and the terminal socket 6 can continue to be powered on and used.

[0021] The above is only used to illustrate the technical solution of the present utility model and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model should be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.

Claims

1. A new type of power socket anti-theft device, characterized by: The anti-theft electrical appliance body (1) comprises a control main board arranged inside the anti-theft electrical appliance body (1), a power supply relay (9), a power supply conversion module (10), a detection conversion circuit (11), and a current transformer (12) arranged on the control main board, one end of the power supply relay (9) being electrically connected to the power supply conversion module (10), and one end of the power supply relay (9) being electrically connected to the detection conversion circuit (11), the current transformer (12) being electrically connected to the detection conversion circuit (11), and a power-on button (2) being electrically connected to the power supply relay (9) and the power supply conversion module (10) being arranged on the anti-theft electrical appliance body (1).

2. A novel power socket anti-theft device according to claim 1, characterized in that: The anti-theft electrical appliance body (1) is provided with an input power terminal (3), and the output end of the input power terminal (3) is electrically connected to a power-on button (2) and a power conversion module (10).

3. The novel anti-theft device for power socket according to claim 1 is characterized in that: The anti-theft electrical appliance body (1) is also provided with a load output terminal (5), the load output terminal (5) is electrically connected to the current transformer (12), and the load output terminal (5) is electrically connected to the input power supply terminal (3) to form a loop, and current detection is performed through the current transformer (12).

4. A novel power socket anti-theft device according to claim 2, characterized in that: The input power terminal (3) is connected to a power source (4).

5. The novel anti-theft device for power socket according to claim 3 is characterized in that: The load output terminal (5) is connected to a cable (8).

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