CN216211429U

CN216211429U - Prevention actual measurement integrative combination formula electrical fire detector

Info

Publication number: CN216211429U
Application number: CN202122675805.4U
Authority: CN
Inventors: 刘理; 肖学波; 程祥光; 严仍友
Original assignee: Shenzhen Fanhai Sanjiang Electronics Co Ltd
Current assignee: Shenzhen Hi Tech Investment Sanjiang Electronics Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-05
Anticipated expiration: 2031-11-03

Abstract

The utility model relates to an integrated combination type electric fire detector for preventing actual measurement, which comprises a detector body provided with a shell and a control circuit board arranged in the shell, wherein an MCU control unit is arranged on the control circuit board in the detector body, and is electrically connected with a fault electric arc detection module, a voltage and current sampling module, a temperature sampling module, a residual current sampling module, a sound alarm module, a communication module, an LED indicator lamp, a display screen and a key module, and the LED indicator lamp, the display screen and the key module are all arranged on the shell of the detector body. The utility model discloses a with prevention, monitoring, protection set for an organic whole multi-functional warning terminal combination, simplified the equipment fixing structure of security protection system, more do benefit to the use.

Description

Prevention actual measurement integrative combination formula electrical fire detector

Technical Field

The utility model relates to the field of security and protection, in particular to a prevention and actual measurement integrated combined type electrical fire detector.

Background

The electrical fire monitoring detector is a detector for detecting changes of electrical fire danger parameters such as residual current, temperature and the like in a protected line, and is commonly used in places with complex lines such as factories, large storehouses, offices, commercial buildings, hotels, residences, entertainment places and the like with the highest occurrence probability of electrical fire. However, the existing electrical fire detector has relatively single function, and more different devices need to be arranged to simultaneously take different functions to comprehensively prevent, monitor and protect the fire in the security system, so that the installation of the security system is complicated, and the use is not facilitated.

SUMMERY OF THE UTILITY MODEL

Aiming at the existing defects, the utility model provides an integrated combination type electric fire detector for preventing actual measurement.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an integrative combination formula electrical fire detector of prevention actual measurement, is including being equipped with the shell and the detector body that is equipped with control scheme board in the shell, be provided with MCU the control unit on this internal control scheme board of detector, MCU the control unit electric connection has fault arc detection module, voltage current sampling module, temperature sampling module, residual current sampling module, audible alarm module, communication module, LED pilot lamp, display screen, button module all set up on the shell of detector body.

Preferably, the fault arc detection module, the voltage and current sampling module, the temperature sampling module, the residual current sampling module, the sound alarm module and the communication module are all arranged on a control circuit board of the detector body.

Preferably, the display screen is an LCD display screen.

Preferably, the communication module comprises a wireless communication unit and a wired communication unit, and a communication interface for communication connection of the wired communication unit is arranged on the shell of the detector body.

Preferably, the communication module is communicatively connected with a cloud server.

Preferably, the LED indicator is provided in plural, and the plural LED indicators are different in indication color.

Preferably, the temperature sampling module is provided with an NTC temperature sensor.

Preferably, the external part of the residual current sampling module is electrically connected with a residual current transformer.

Preferably, the key module comprises a key arranged on the shell of the detector body and a key circuit arranged on the control circuit board and controlled by the key.

The utility model has the beneficial effects that: the utility model discloses a module set with various different functions is in the same place and is controlled through MCU the control unit for electric fire detector has had multiple functions, has just reduced the installation of each different functional device in the security protection system, more is favorable to using, and can be connected to the high in the clouds and pass through SMS or mail suggestion alarm information.

Drawings

FIG. 1 is a functional block diagram of an embodiment of the present invention;

FIG. 2a is a first circuit diagram of a fault arc detection module according to an embodiment of the present invention;

FIG. 2b is a circuit diagram II of a fault arc detection module in accordance with an embodiment of the present invention;

FIG. 3 is a circuit diagram of a voltage current sampling module according to an embodiment of the present invention;

FIG. 4 is a circuit diagram of a temperature sampling module according to an embodiment of the present invention;

FIG. 5 is a circuit diagram of a residual current sampling module according to an embodiment of the present invention;

FIG. 6 is a circuit diagram of an audible alarm module according to an embodiment of the present invention;

FIG. 7 is a circuit diagram of a display screen according to an embodiment of the present invention;

FIG. 8 is a circuit diagram of a key module according to an embodiment of the present invention;

FIG. 9 is a circuit diagram of an LED indicator light according to an embodiment of the present invention;

part names and serial numbers in the figure: the device comprises a MCU (microprogrammed control Unit) control unit 10, a key module 2, a fault arc detection module 3, a voltage and current sampling module 4, a temperature sampling module 5, a residual current sampling module 6, a sound alarm module 7, a communication module 8, an LED (light-emitting diode) indicator lamp 9 and a display screen.

Detailed Description

To more clearly illustrate the objects, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention. In addition, directional terms used in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer to directions only as shown in the attached drawings, and are used for better and clearer explanation and understanding of the present invention, and do not indicate or imply orientation which the present invention must have, and thus, should not be construed as limiting the present invention.

The embodiment of the utility model is shown in figures 1 to 9, and the integrated combination type electrical fire detector for preventing actual measurement comprises a detector body which is provided with a shell and a control circuit board arranged in the shell, wherein the detector body can be any one of the existing electrical fire detectors, the electrical fire detector is provided with the shell and the control circuit board, so that other components can be integrated on the electrical fire detector, an MCU control unit 1 is arranged on the control circuit board in the detector body, the detector adopts single MCU control, the MCU control unit 1 is responsible for collecting and processing all data and controlling the normal work of other functional modules to effectively judge various monitoring signals, and the MCU control unit 1 is electrically connected with a faulty arc detection module 2, a voltage current sampling module 3, a temperature sampling module 4, a residual current sampling module 5, a voltage current sampling module 3, a voltage current sampling module 5, a voltage current sampling module, a voltage sampling module, a current sampling module and a voltage sampling module, The circuit diagram of the detector is shown in fig. 2a and 2b, one is that the following characteristic values, including a current-voltage half-wave peak value, an effective value, a zero-rest time of current (a zero-crossing time of current), amplitude change of two adjacent cycles, a change rate and the like are extracted in a time domain, and the other is that the following characteristic values, including a high-frequency signal amplitude, a harmonic factor, a total harmonic rate, a K coefficient, a distortion content change rate and the like are extracted in a frequency domain; the voltage and current sampling module 3 collects the voltage and current of the input zero live wire and calculates the power and electric energy change, and the circuit thereof is shown in fig. 3; the temperature sampling module 4 is used for collecting temperature, an NTC temperature sensor is arranged on the temperature sampling module, the circuit of the temperature sampling module is shown in figure 4, when the temperature is collected, the MCU controls the field effect transistor through the power supply of the corresponding channel, the resistance value of the NTC temperature sensor is converted into a voltage signal through the voltage division circuit to be sampled by the MCU, and after the MCU obtains a sampling value, the MCU obtains a temperature value by utilizing a table look-up algorithm; the residual current detection module 5 converts primary current into secondary current according to a certain transformation ratio by using an external residual current transformer, then converts the secondary current into a voltage signal through a sampling resistor, and directly samples the voltage signal by using an MCU (microprogrammed control Unit), calculates the residual current of a main loop according to a certain conversion relation after the MCU obtains a sampling value, and realizes the wiring fault detection of the residual current transformer by adopting a field effect transistor switching resistor voltage division circuit mode, wherein the circuit is shown in FIG. 5; the sound alarm module 6 prompts the user to leave by making a sound when definite alarm information exists, and a circuit of the sound alarm module is shown in fig. 6; the communication module 7 is used for transmitting information with a terminal to realize timely and accurate alarm; the display screen 9 is used as a man-machine interaction interface for displaying and setting parameters, an LCD display screen is selected, and a circuit of the LCD display screen is shown in FIG. 7; the key module 10 is used as an input port in human-computer interaction to set corresponding commands, and the circuit thereof is shown in fig. 8; LED pilot lamp 8, display screen 9, button module 10 all set up on the shell of detector body, just so can more audio-visual see instruct and carry out corresponding operation, facilitate the use. Simultaneously all set up fault arc detection module 2, voltage current sampling module 3, temperature sampling module 4, residual current sampling module 5, audible alarm module 6, communication module 7 on the control scheme board of detector body, just integrated as an organic whole with the control scheme board of detector body, convenient production equipment also can miniaturize the detector body.

In a further improvement, for the communication module, the communication module 7 includes a wireless communication unit and a wired communication unit, so that wired or wireless communication connection can be performed, and the use is facilitated. Further, communication module 7 is connected with the cloud ware, comes communication connection terminal through the cloud ware, just can more effective more data of synthesizing at the cloud ware and carry out the analysis, just can make effective analogy to unusual power consumption condition, carries out effectual warning.

In a further improvement, as shown in fig. 9, the LED indicator lamps 8 are provided in plurality, the indicating colors of the LED indicator lamps 8 are different, the LED indicator lamps are directly driven by the IO ports, the indicator lamps are distinguished into the indicator lamps for alarming, fault and communication, one color represents one function, the color of the indicator lamp is red, yellow and green, the alarm and fault lamps are normally on in corresponding states, and the communication indicator lamp is flashing.

In a further improvement, the key module 10 includes a key disposed on the casing of the detector body, and a key circuit disposed on the control circuit board and operated by the key, the key is convenient for a user to operate on the casing, and the key circuit is disposed on the control circuit board and is convenient for production and assembly.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a prevention actual measurement integrative combination formula electrical fire detector which characterized in that: including being equipped with the shell and being equipped with control scheme board's detector body in the shell, be provided with MCU the control unit on this internal control scheme board of detector, MCU the electric connection of control unit has fault arc detection module, voltage and current sampling module, temperature sampling module, residual current sampling module, audible alarm module, communication module, LED pilot lamp, display screen, button module all set up on the shell of detector body.

2. The integrally modular electrical fire detector of claim 1, further comprising: the fault arc detection module, the voltage and current sampling module, the temperature sampling module, the residual current sampling module, the sound alarm module and the communication module are all arranged on a control circuit board of the detector body.

3. The integrally modular electrical fire detector of claim 1, further comprising: the display screen is an LCD display screen.

4. The integrally modular electrical fire detector of claim 1, further comprising: the communication module comprises a wireless communication unit and a wired communication unit, and a communication interface for the wired communication unit to be in communication connection is arranged on the shell of the detector body.

5. The integrally modular electrical fire detector of claim 1, further comprising: the communication module is in communication connection with a cloud server.

6. The integrally modular electrical fire detector of claim 1, further comprising: the LED indicating lamp is provided with a plurality of LED indicating lamps, and the indicating colors of the LED indicating lamps are different.

7. The integrally modular electrical fire detector of claim 1, further comprising: the temperature sampling module is provided with an NTC temperature sensor.

8. The integrally modular electrical fire detector of claim 1, further comprising: and the external part of the residual current sampling module is electrically connected with a residual current transformer.

9. The integrally modular electrical fire detector of claim 1, further comprising: the key module comprises keys arranged on the shell of the detector body and a key circuit arranged on the control circuit board and controlled by the keys.