CN210109986U

CN210109986U - Smoke electronic alarm

Info

Publication number: CN210109986U
Application number: CN201921184700.5U
Authority: CN
Inventors: 孙英丹; 邱文波; 沈松慧
Original assignee: Shenzhen Zebao Intelligent Technology Co Ltd
Current assignee: Shenzhen Zebao Intelligent Technology Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-02-21
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses a smog electronic alarm, include: the installation base, set up in main part on the installation base, set up in the maze cavity at main part center, set up in LED pilot lamp in the main part, set up in bee calling organ in the main part, set up in reset button in the main part and set up in the inside circuit board of main part, the circuit board includes: main MCU circuit, wireless transmission module and wireless transmitting circuit, main MCU circuit includes: the smoke alarm device comprises a main MCU chip, a smoke detection circuit and a smoke alarm indicating circuit, wherein the model of the chip selected by the main MCU chip is A88F656NBSO 20J. The utility model discloses an use integrated fortune to put the chip of circuit, reduce manufacturing procedure, the convenient investigation to the trouble saves economic cost's expenditure. Meanwhile, the operational amplifier circuit is integrated with the main MCU chip, so that related data can be processed more quickly, the stability and the anti-interference capability of signal processing are improved, and the circuit is suitable for severe environments.

Description

Smoke electronic alarm

Technical Field

The utility model relates to a fire detection warning field especially relates to a smog electronic alarm.

Background

The process of fire is generally accompanied by smoke, heat and light. In the initial stage of a fire, since the temperature is low, substances are mostly in a smoldering stage, and therefore, a large amount of smoke is generated. Smoke is one of the important characteristics of early fires, and smoke-sensitive fire detectors (smoke-sensing for short) have been developed using this characteristic, and are fire detectors that are capable of responding to visible or invisible smoke particles. The smoke sensation is a device for converting the change of smoke concentration of a detection part into an electric signal to realize the aim of alarming. The internal circuit of the existing smoke detector needs to process signals through the operational amplifier chip and then transmits the signals to the main chip for processing, so that the operational amplifier circuit needs to be connected in the processing process. When the internal operational amplifier circuit of the smoke detector has faults, false alarm or no alarm can be caused, troubleshooting is troublesome, and the cost can be increased when the smoke detector is replaced. In addition, signals received by the smoke detector are amplified through the operational amplifier circuit connected in the circuit and then enter the main control circuit for processing, so that the signal processing time is prolonged, and meanwhile, the external interference resistance is poor.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming prior art's not enough, providing a smog electronic alarm, integrating the function of fortune circuit of putting to replace current fortune circuit of putting, convenient processing avoids simultaneously putting the circuit trouble and influence holistic use because of fortune.

The technical scheme of the utility model as follows: there is provided a smoke electronic alarm comprising: installation base, set up in main part on the installation base, set up in the maze cavity at main part center, set up in LED pilot lamp in the main part, set up in buzzer on the main 5, set up in reset button in the main part and set up in the inside circuit board of main part, the circuit board includes: the wireless transmission module that main MCU circuit, with main MCU circuit connection and with the wireless transmitting circuit that wireless transmission module connects, main MCU circuit includes: the smoke alarm indicating circuit comprises a main MCU chip, a smoke detection circuit connected with the main MCU chip and a smoke alarm indicating circuit connected with the main MCU chip, wherein the chip model of the main MCU chip is A88F656NBSO20J, and the wireless transmitting circuit transmits signals to a host computer end in a wireless mode.

Furthermore, the smoke detection circuit is connected with a transmitting tube and a receiving tube.

Furthermore, the smoke alarm indicating circuit is connected with a piezoelectric buzzer, and the piezoelectric buzzer is arranged corresponding to the buzzer.

Further, the smoke alarm indicating circuit is connected with a reset key.

Further, the smoke alarm indicating circuit is connected with an LED indicating lamp.

Further, the chip model of the wireless transmission module is BC 26.

Further, the junction of main part with the installation base is provided with the external screw thread, the installation base is provided with the internal thread corresponding with this external screw thread, main part and installation base assemble through external screw thread and internal thread.

Adopt above-mentioned scheme, the utility model discloses an use integrated fortune to put the chip of circuit, reduce manufacturing procedure, the convenient investigation to the trouble saves economic cost's expenditure. Meanwhile, the operational amplifier circuit is integrated with the main MCU chip, so that related data can be processed more quickly, the stability and the anti-interference capability of signal processing are improved, and the circuit is suitable for severe environments.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a circuit schematic diagram of the master MCU.

Fig. 3 is a schematic circuit diagram of the wireless transmission module.

Fig. 4 is a circuit schematic of a wireless transmit circuit.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, the present invention provides a smoke electronic alarm, including: the installation base 6, set up in main part 5 on the installation base 6, set up in the maze cavity 1 at main part 5 center, set up in LED pilot lamp 2 on the main part 5, set up in buzzer 3 on the main part 5, set up in reset button 4 on the main part 5 and set up in the inside circuit board of main part 5. The circuit board includes: the wireless transmission device comprises a main MCU circuit, a wireless transmission module connected with the main MCU circuit and a wireless transmitting circuit connected with the wireless transmission module. The wireless transmitting circuit transmits signals to the host computer end in a wireless mode. The main MCU circuit includes: the smoke alarm indication circuit comprises a main MCU chip, a smoke detection circuit connected with the main MCU chip and a smoke alarm indication circuit connected with the main MCU chip. The model of the chip selected by the main MCU chip is A88F656NBSO20J, and the chip is a product produced and sold by Taiwan Yinglong electronic products Co. The operational amplifier circuit is integrated on the main MCU chip, so that an external operational amplifier circuit is not needed, the installation procedures are reduced, the difficulty of troubleshooting can be correspondingly reduced when a fault occurs, and the maintenance is convenient. Meanwhile, the operational amplifier circuit is integrated with the main MCU chip, so that related data can be processed more quickly, the stability and the anti-interference capability of signal processing are improved, and the operational amplifier circuit can adapt to a more severe use environment.

The smoke detection circuit is connected with a transmitting tube and a receiving tube. The infrared signal is transmitted through the transmitting tube, and the reflected signal is received by the receiving tube. When the external smoke concentration detected by the infrared signal reaches the corresponding response threshold range, the smoke alarm indicating circuit starts an alarm program, simultaneously outputs an alarm signal to the wireless transmission module, and then the wireless transmitting circuit transmits the alarm signal to the host end to transmit an alarm to monitoring personnel.

The smoke alarm indicating circuit is connected with a piezoelectric buzzer, and the piezoelectric buzzer is arranged corresponding to the buzzer 3. The smoke alarm indicating circuit is connected with the LED indicating lamp 2. When the smoke alarm indicating circuit is started, the LED indicating lamp 2 flickers, and the buzzer 3 sends out high-decibel warning sound to remind people in the field to take refuge or emergency rescue.

The smoke alarm indicating circuit is connected with the reset key 4. When the smoke detector is in a normal monitoring state, the reset key 4 is clicked to trigger an alarm mode, and the smoke detector can be used for self-checking of the smoke detector. When the smoke is in the alarm mode, the buzzer can be silenced by clicking the reset button 4.

The chip model of the wireless transmission module is BC 26.

The main part 5 with the junction of installation base 6 is provided with the external screw thread, installation base 6 is provided with the internal thread corresponding with this external screw thread, main part 5 assembles through external screw thread and internal thread with installation base 6. Use first helicitic texture and second helicitic texture to connect, make things convenient for the loading and unloading of main part 5, be convenient for examine and repair or change the cigarette sense.

To sum up, the utility model discloses an use integrated fortune to put the chip of circuit, reduce manufacturing procedure, the convenient investigation to the trouble saves economic cost's expenditure. Meanwhile, the operational amplifier circuit is integrated with the main MCU chip, so that related data can be processed more quickly, the stability and the anti-interference capability of signal processing are improved, and the circuit is suitable for severe environments.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A smoke electronic alarm, comprising: the installation base, set up in main part on the installation base, set up in the maze cavity at main part center, set up in LED pilot lamp in the main part, set up in bee calling organ in the main part, set up in reset button in the main part and set up in the inside circuit board of main part, the circuit board includes: the wireless transmission module that main MCU circuit, with main MCU circuit connection and with the wireless transmitting circuit that wireless transmission module connects, main MCU circuit includes: the smoke alarm indicating circuit comprises a main MCU chip, a smoke detection circuit connected with the main MCU chip and a smoke alarm indicating circuit connected with the main MCU chip, wherein the chip model of the main MCU chip is A88F656NBSO20J, and the wireless transmitting circuit transmits signals to a host computer end in a wireless mode.

2. The smoke electronic alarm of claim 1, wherein said smoke detection circuit is connected to a transmitting tube and a receiving tube.

3. The smoke electronic alarm according to claim 1, wherein said smoke alarm indicating circuit is connected to a piezoelectric buzzer, said piezoelectric buzzer being disposed in correspondence with a buzzer.

4. The smoke electronic alarm of claim 1, wherein said smoke alarm indication circuit is connected to a reset button.

5. The smoke electronic alarm of claim 1, wherein said smoke alarm indication circuit is connected to an LED indicator light.

6. The smoke electronic alarm according to claim 1, wherein the wireless transmission module is selected from a chip model BC 26.

7. The smoke electronic alarm according to claim 1, wherein the connection of the main body and the mounting base is provided with an external thread, the mounting base is provided with an internal thread corresponding to the external thread, and the main body and the mounting base are assembled through the external thread and the internal thread.