CN218122093U - Novel multi-functional low pressure circuit detects device - Google Patents

Abstract

The utility model discloses a novel multi-functional low pressure circuit detects device, include: the input end of the alternating current quantity transducer is connected with an alternating current power supply; the device can collect the returned current value and voltage value; the solid-state relay is connected between the alternating current electric quantity transmitter and the load end; the Hall current sensor is arranged on a line between the alternating current electric quantity transmitter and the solid-state relay and is used for detecting the magnitude of electric shock current; the alarm is used for alarming; and the single chip microcomputer is used for receiving information transmitted by the Hall current sensor and the alternating current transducer and controlling the work of the solid-state relay and the alarm according to the information. Adopt the utility model discloses a detection device has protection against electric shock detection, excessive pressure and low pressure detection, overflows and short circuit detection function, can send alarm signal and open circuit, and the practicality is strong.

Description

Novel multi-functional low pressure circuit detects device

Technical Field

The utility model relates to a line detection technical field, in particular to novel multi-functional low pressure circuit detects device.

Background

An alternating current power transmitter is often required to be arranged between the commercial power and the user side for realizing the high-low voltage isolation between the commercial power and the user side. During the period of power consumption at the user end, the voltage may be too low or too high, and the service life of the electric appliance may be affected by the too high or too low voltage. And under the condition of short circuit or electric shock of human body, safety accidents are likely to be caused. Therefore, a novel multifunctional low-voltage line detection device is urgently needed, and is used for detecting voltage and giving an alarm to remind a user when a circuit is in a low-voltage or high-voltage condition; and the current is detected, and the power supply is disconnected under the condition of short circuit of the circuit or electric shock of a human body, so that the safety performance is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel multifunctional low-voltage line detection device, thereby overcoming the defects that the voltage of the existing user terminal is too high or too low, and the detection and the alarm can not be carried out; and when the circuit is short-circuited or the human body is in electric shock, the power supply cannot be detected and disconnected for protection.

In order to achieve the above object, the utility model provides a novel multi-functional low pressure circuit detects device, include: an alternating current quantity transmitter, the input end of which is connected with an alternating current power supply; the alternating current electric quantity transmitter can collect a returned current value and a returned voltage value; the input end of the solid-state relay is connected with the output end of the alternating current electric quantity transmitter, and the output end of the solid-state relay is connected with a load end; the Hall current sensor is arranged on a line between the alternating current transducer and the solid-state relay and is used for detecting the magnitude of electric shock current; the alarm is used for alarming; the Hall current sensor, the alternating current transducer, the solid-state relay and the alarm are all in data connection with the single chip microcomputer, and the single chip microcomputer is used for receiving information transmitted by the Hall current sensor and the alternating current transducer and controlling the solid-state relay and the alarm to work according to the information.

Preferably, in the above technical scheme, the mobile terminal further comprises a liquid crystal display screen, and the liquid crystal display screen is in data connection with the single chip microcomputer and is used for displaying information.

Preferably, in the above technical solution, the mobile terminal further comprises a keyboard, and the keyboard is in data connection with the single chip microcomputer and is used for inputting information.

Preferably, in the above technical solution, the electronic ballast further includes a TIP127 driving circuit, and the TIP127 driving circuit is connected between the single chip microcomputer and the solid-state relay and is used for controlling on/off of the solid-state relay.

Preferably, in the above technical solution, the single chip microcomputer is an STC8 single chip microcomputer.

Preferably, in the above technical solution, the ac power transmitter is a SUI-101A ac power transmitter.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a detection device includes or hall current sensor, can real-time detection circuit's zero sequence current, and normal work does not have the electric current to return, and someone electrocutes and returns leakage current, and the system detects leakage current and then in time breaks off solid state relay to the disconnection power, protection personal safety; wherein, the action current value of the leakage current can be adjusted according to the requirement;

2. the detection device of the utility model comprises an alternating current transducer, the single chip microcomputer can collect the returned voltage value from the alternating current transducer, and the voltage value is compared with the upper limit and the lower limit of the set voltage value of the single chip microcomputer, so that the alarm of overvoltage and low voltage can be realized; the single chip microcomputer can collect the returned current value from the alternating current quantity transducer, and the current value is compared with the upper limit of the current value set by the single chip microcomputer, so that overcurrent alarm can be realized; because the short-circuit current is far larger than the upper limit of the set current value, the short-circuit current can be used as the judgment basis of the short circuit according to the magnitude of the current value, so that the on-off of the solid-state relay is controlled, and the safety performance is improved.

Drawings

Fig. 1 is a flow chart of the novel multifunctional low-voltage line detection device according to the utility model.

Fig. 2 is a schematic structural diagram of the novel multifunctional low-voltage line detection device according to the present invention.

Fig. 3 is a schematic diagram of a TIP127 driving circuit according to the present invention.

Description of the main reference numerals:

the device comprises an alternating current electric quantity transducer 1, a Hall current sensor 2, a solid-state relay 3, a load end 4, a TIP127 driving circuit 5, an alarm 6, a keyboard 7, a liquid crystal display screen 8 and a singlechip 9.

Detailed Description

The following detailed description of the present invention is provided with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited by the detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Fig. 1 to fig. 3 show a schematic structural diagram of a novel multifunctional low-voltage line detection device according to a preferred embodiment of the present invention, and the detection device includes an ac power transducer 1, a solid-state relay 3, a hall current sensor 2, an alarm 6, and a single chip microcomputer 9. Referring to fig. 1 to 3, an input end of the ac power transmitter 1 is connected to an ac power supply, so that high and low voltage isolation can be achieved, and safety and reliability can be enhanced. Wherein, the alternating current power supply is commercial power. The alternating current quantity transducer 1 can collect the returned current value and voltage value; the voltage value is compared with the upper limit and the lower limit of the voltage value set by the singlechip 9, so that the alarm of overvoltage and low voltage can be realized; the overcurrent alarm can be realized by comparing the current value with the upper limit of the current value set by the singlechip 9; because the short-circuit current is far larger than the upper limit of the set current value, the short-circuit current can be used as the judgment basis of the short circuit according to the magnitude of the current value, so that the on-off of the solid-state relay 3 is controlled, and the safety performance is improved. The input end of the solid-state relay 3 is connected with the output end of the alternating current quantity transducer 1, the output end of the solid-state relay 3 is connected with the load end 4, the load end 4 is a user end, and the solid-state relay 3 can control the on-off of the circuit. The Hall current sensor 2 is arranged on a circuit between the alternating current power transmitter 1 and the solid-state relay 3 and used for detecting the magnitude of electric shock current and detecting zero sequence current of the circuit in real time, no current returns during normal work, leakage current returns when people get an electric shock, and a power supply is timely disconnected when the system detects the leakage current, so that personal safety is protected. The alarm 6 is used for alarming. The Hall current sensor 2, the alternating current transducer 1, the solid-state relay 3 and the alarm 6 are all in data connection with the single chip microcomputer 9, and the single chip microcomputer 9 is used for receiving information transmitted by the Hall current sensor 2 and the alternating current transducer 1 and controlling the solid-state relay 3 and the alarm 6 to work according to the information. When the Hall current sensor 2 detects that a person gets an electric shock, the singlechip 9 controls the solid-state relay 3 to cut off the power supply; when the voltage acquired by the alternating current electric quantity transmitter 1 is too high or too low, the singlechip 9 controls the alarm 6 to give an alarm; when the current value acquired by the alternating current electric quantity transmitter 1 is too high, the singlechip 9 controls the alarm 6 to give an alarm; when the alternating current electric quantity transmitter 1 acquires a short circuit, the singlechip 9 controls the solid-state relay 3 to cut off the power supply, and the safety performance is improved.

Referring to fig. 1, preferably, the detection device further includes a liquid crystal display 8, the liquid crystal display 8 is in data connection with the single chip microcomputer 9 and is used for displaying information, and the information can be information such as a current value and a voltage value detected by a system, and an upper and lower voltage value limit and an upper current value limit manually set in the single chip microcomputer 9, so that manual reading is facilitated.

Referring to fig. 1, the detecting device preferably further includes a keyboard 7, the keyboard 7 is in data connection with the single chip microcomputer 9, and is used for inputting information, facilitating manual input of set values of voltage and current, and manually controlling the operation of the alarm 6, the solid-state relay 3 and other devices.

Referring to fig. 1 and 3, preferably, the detection device further includes a TIP127 driving circuit 5, and the TIP127 driving circuit 5 is connected between the single chip microcomputer 9 and the solid-state relay 3, and is used for controlling on/off of the solid-state relay 3. When the solid-state relay is used, the singlechip 9 drives the TIP127 driving circuit 5 to control a control loop circuit of the solid-state relay 3 to realize the on-off of a power supply after being isolated by photoelectricity.

Referring to fig. 1, the one-chip microcomputer 9 is preferably an STC8 one-chip microcomputer.

Referring to fig. 1, the ac power transmitter 1 is preferably a SUI-101A ac power transmitter.

The data connection described in the utility model is wired connection or wireless connection, which can be selected according to specific needs; when the detection device is used, the detection device is added into the existing low-voltage line, so that the detection device has the functions of electric shock prevention detection, overvoltage detection, low-voltage detection, overcurrent detection, short-circuit detection and the like, can send out related alarm signals and control the on-off of a circuit according to information detected by a system, and is high in practicability.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. The utility model provides a novel multi-functional low pressure circuit detects device which characterized in that includes:

the input end of the alternating current quantity transducer is connected with an alternating current power supply; the alternating current electric quantity transmitter can acquire a returned current value and a returned voltage value;

the input end of the solid-state relay is connected with the output end of the alternating current electric quantity transmitter, and the output end of the solid-state relay is connected with a load end;

the Hall current sensor is arranged on a line between the alternating current transducer and the solid-state relay and is used for detecting the magnitude of electric shock current;

the alarm is used for alarming; and

the Hall current sensor, the alternating current transducer, the solid-state relay and the alarm are all in data connection with the single chip microcomputer, and the single chip microcomputer is used for receiving information transmitted by the Hall current sensor and the alternating current transducer and controlling the solid-state relay and the alarm to work according to the information.

2. The novel multifunctional low-voltage line detection device as claimed in claim 1, further comprising a liquid crystal display screen, wherein the liquid crystal display screen is in data connection with the single chip microcomputer and is used for displaying information.

3. The novel multifunctional low-voltage line detection device as claimed in claim 1, further comprising a keyboard, wherein the keyboard is in data connection with the single chip microcomputer and is used for inputting information.

4. The novel multifunctional low-voltage line detection device as claimed in claim 1, further comprising a TIP127 driving circuit, wherein the TIP127 driving circuit is connected between the single chip microcomputer and the solid-state relay and used for controlling on-off of the solid-state relay.

5. The new multifunctional low-voltage line detection device according to claim 1, wherein the single chip microcomputer is an STC8 single chip microcomputer.

6. The novel multifunctional low-voltage line detection device as claimed in claim 1, wherein the ac power transmitter is a SUI-101A ac power transmitter.

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