CN221827424U - A NB infrared lighting smoke detector - Google Patents

Abstract

The utility model discloses a smoke detector of an NB infrared illumination lamp, which comprises the following components: the device comprises a mounting plate, a bottom cover arranged on the mounting plate, a surface cover clamped with the bottom cover, an arc-shaped lamp panel arranged between the surface cover and the bottom cover, a buzzer, a PCB key assembly, a Fresnel lens arranged on the PCB key assembly, a PCB assembly, a power assembly, a metal compression bar arranged on the power assembly and a leakage-proof switch; the PCB assembly comprises a main control circuit, an NB transmitting circuit, an infrared receiving circuit, a sound control circuit, an LED driving circuit, a temperature detection circuit and a buzzer circuit; the corresponding ends of the main control circuit are respectively and electrically connected with the corresponding ends of the NB transmitting circuit, the infrared receiving circuit, the sound control circuit, the LED driving circuit, the temperature detection circuit and the buzzer circuit; the sound control circuit and the LED driving circuit are connected with the arc-shaped lamp panel; the buzzer circuit is correspondingly and electrically connected with the buzzer.

Description

A NB infrared lighting smoke detector

Technical Field

The utility model relates to the technical field of alarms, in particular to a NB infrared lighting smoke detector.

Background Art

Smoke detectors prevent fires by monitoring the concentration of smoke. Smoke detectors use ion smoke sensors inside. Ion smoke sensors are technologically advanced, stable and reliable sensors that are widely used in various fire alarm systems. Their performance is far superior to gas resistor-type fire alarms.

The existing smoke detectors do not involve lighting function. At night, people are prone to fall, and the smoke detectors cannot effectively illuminate people. After detecting smoke, the alarm information cannot be sent to relevant personnel in time for timely processing. The alarm, deployment and withdrawal functions cannot be performed after the on-site situation is clarified in the first time, which is easy to cause nuisance to the public.

Utility Model Content

In view of the problems existing in the prior art, the utility model provides a NB infrared lighting smoke detector.

In order to achieve the above purpose, the technical solution of the utility model is as follows:

The utility model provides an NB infrared lighting lamp smoke detector, comprising: a mounting plate, a bottom cover arranged on the mounting plate, a surface cover engaged with the bottom cover, an arc-shaped lamp board arranged between the surface cover and the bottom cover, a buzzer, a PCB board key assembly, a Fresnel lens arranged on the PCB board key assembly, a PCB board assembly and a power supply assembly, a metal pressure rod arranged on the power supply assembly and an anti-missing switch;

The PCB board assembly includes a main control circuit, an NB transmitting circuit, an infrared receiving circuit, a voice control circuit, an LED driving circuit, a temperature detection circuit, and a buzzer circuit; the corresponding ends of the main control circuit are electrically connected to the corresponding ends of the NB transmitting circuit, the infrared receiving circuit, the voice control circuit, the LED driving circuit, the temperature detection circuit, and the buzzer circuit respectively; the voice control circuit and the LED driving circuit are both connected to the arc light board; the buzzer circuit is electrically connected to the buzzer.

Preferably, the arc-shaped light panel is mounted on the surface cover, the Fresnel lens is opposite to the window on the surface cover, and the PCB board button assembly, PCB board assembly and power supply assembly are all arranged on the bottom cover.

Preferably, the bottom cover and the top cover are fixed by means of snaps, and the mounting plate and the bottom cover are fixed by means of screws.

Preferably, the PCB board assembly is also provided with a power supply and networking interface circuit and a step-down circuit; the power supply and networking interface circuit is used to output a 12V voltage to power the circuit, and the step-down circuit is used to step down the 12V input by the power supply and networking interface circuit to power the circuit.

Preferably, the step-down circuit includes step-down circuit 1 and step-down circuit 2; the step-down circuit 1 includes a MC34063 step-down chip and its peripheral circuits, and the MC34063 step-down chip is used to step down the 12V voltage output by the power supply and networking interface circuit to 5V to power the circuit; the step-down circuit 2 includes a MD5130 step-down chip and its peripheral circuits, and the MD5130 step-down chip is used to step down the 5V voltage output by the MC34063 step-down chip to 3.3V to power the circuit.

Preferably, the main control circuit includes an MCU and its peripheral circuits, and the model of the MCU is CS2109BGO.

Preferably, the NB transmitting circuit includes a NB module circuit, a NB module reset wake-up circuit, a NB power control circuit, a level matching circuit, an antenna matching circuit, a SIM card circuit, and a NB power supply circuit; the NB module circuit includes a MN316 chip and its peripheral circuits, and the corresponding ends of the MN316 chip are electrically connected to the NB module reset wake-up circuit, the NB power control circuit, the level matching circuit, the antenna matching circuit, the SIM card circuit, and the corresponding ends of the MCU, respectively, and the corresponding end of the NB power control circuit is also electrically connected to the corresponding end of the NB power supply circuit.

Preferably, the infrared receiving circuit includes an IRM-56384 infrared receiving head and its peripheral circuits, and a corresponding end of the IRM-56384 infrared receiving head is electrically connected to a corresponding end of the MCU.

Preferably, the voice control circuit includes a microphone MIC1, a resistor R17, a resistor R19, a resistor R37, a resistor R16, a resistor R13, a resistor R12, a capacitor C8, a capacitor C16, a capacitor C9, a capacitor C14, a transistor Q6, a transistor Q4, and a MOS tube V5; one end of the microphone MIC1 is electrically connected to the first end of the resistor R17 and the first end of the capacitor C8 respectively; the second end of the capacitor C8 is electrically connected to the first end of the resistor R19, the first end of the capacitor C16, and the first end of the transistor Q6 respectively; the first end of the transistor Q6 is grounded, and the third end of the transistor Q6 is electrically connected to the first end of the resistor R19, the first end of the capacitor C16, and the first end of the transistor Q6 respectively; The second end of capacitor C16, the second end of resistor R19, the first end of resistor R37, and the first end of capacitor C9 are electrically connected. The second end of capacitor C9 is electrically connected to the first end of capacitor C14, the first end of resistor R16, and the first end of transistor Q4 respectively. The second end of transistor Q4 is grounded. The third end of transistor Q4 is electrically connected to the second end of capacitor C14, the second end of resistor R16, and the first end of resistor R13 respectively. The second end of resistor R13 is electrically connected to the first end of resistor R12 and the source of MOSFET V5 respectively. The drain of MOSFET V5 is electrically connected to the second end of resistor R12.

Preferably, the LED driving circuit includes a PT4115 driving chip and its peripheral circuits, and a corresponding end of the PT4115 driving chip is electrically connected to a corresponding end of the MCU.

The technical solution of the utility model has the following beneficial effects:

The utility model alarm is both a smoke monitoring alarm and a lighting lamp. When the light is relatively dim, the device will turn on the lighting when a sound is heard or someone passes by. Especially in the dark night without lights, it can illuminate passers-by to prevent them from falling. It can also monitor smoke, send alarm information to relevant personnel for timely processing, and remotely eliminate the alarm. The NB module can transmit the alarm information to the host and transmit it to the cloud platform. The cloud platform reports the information to the manager, greatly reducing the occurrence of nuisance incidents. This product is easier to popularize, escorting the safety of life and property of the general public and benefiting all mankind.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

Figure 2 is an exploded view of the utility model;

FIG3 is a control module diagram of the utility model;

FIG4 is a schematic diagram of the main control circuit of the utility model;

FIG5 is a schematic diagram of a NB transmitting circuit of the present invention;

FIG6 is a schematic diagram of an infrared receiving circuit of the utility model;

FIG7 is a schematic diagram of a sound control circuit of the present utility model;

FIG8 is a schematic diagram of the LED driving circuit of the utility model;

FIG9 is a schematic diagram of a temperature detection circuit of the present utility model;

FIG10 is a schematic diagram of a key circuit of the utility model;

FIG11 is a schematic diagram of the LED indicator circuit of the utility model;

FIG12 is a schematic diagram of a buzzer circuit of the utility model;

FIG13 is a schematic diagram of the power supply and networking interface circuit of the utility model;

FIG14 is a schematic diagram of a step-down circuit of the utility model.

DETAILED DESCRIPTION

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly specified or limited, a first feature is “on” or “below” a second feature.

“Under” may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature being “above”, “above”, and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “below”, “below”, and “below” the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

1 to 14, the utility model provides a NB infrared lighting smoke detector, comprising: a mounting plate 15, a bottom cover 14 arranged on the mounting plate 15, a surface cover 1 engaged with the bottom cover 14, an arc-shaped lamp board 2 arranged between the surface cover 1 and the bottom cover 14, a buzzer 3, a PCB board key assembly 6, a Fresnel lens 5 arranged on the PCB board key assembly 6, a PCB board assembly 4 and a power supply assembly, a metal pressure rod 7 and an anti-missing switch 8 arranged on the power supply assembly; the power supply assembly comprises a battery 9 or a lithium battery 12, and the metal pressure rod 7 and the anti-missing switch 8 are provided on the battery or the lithium battery; the arc-shaped lamp board 2 is mounted on the surface cover 1, the Fresnel lens 5 is opposite to the window on the surface cover 1, and the emitted light passes through the window conveniently, the PCB board key assembly 6, the PCB board assembly 4, and the power supply assembly are all arranged on the bottom cover 14; the bottom cover 14 is fixed to the surface cover by a buckle 1, and the mounting plate 15 is fixed to the bottom cover 14 by screws, which is convenient for disassembly and assembly;

The PCB board assembly 4 includes a main control circuit 20, a NB transmitting circuit 30, an infrared receiving circuit 40, a voice control circuit 50, an LED driving circuit 60, a temperature detection circuit 70, and a buzzer circuit 100; the corresponding end of the main control circuit 20 is electrically connected to the corresponding end of the NB transmitting circuit 30, the infrared receiving circuit 40, the voice control circuit 50, the LED driving circuit 60, the temperature detection circuit 70, and the buzzer circuit 100; the PCB board key assembly 6 is also provided with a key circuit 80, which is electrically connected to the corresponding end of the main control circuit 20;

The voice control circuit 50 and the LED driving circuit 60 are both connected to the arc light board 2, and can control the switch of the arc light board 2. In a dark environment at night when there is no light, the voice control circuit 50 controls the arc light board 2 to turn on the light, which can provide illumination for passers-by to prevent falls; the buzzer circuit 100 is electrically connected to the buzzer 3.

The PCB board assembly is also provided with a power supply and networking interface circuit 110, a step-down circuit 120, and an LED indicator circuit 90; the power supply and networking interface circuit 110 is used to output a 12V voltage to power the circuit, and the step-down circuit 120 is used to step down the 12V input by the power supply and networking interface circuit and then power the circuit; the step-down circuit 120 includes a step-down circuit 1 and a step-down circuit 2; the step-down circuit 1 includes a MC34063 step-down chip and its peripheral circuits, and the MC34063 step-down chip is used to step down the 12V voltage output by the power supply and networking interface circuit to 5V to power the circuit; the step-down circuit 2 includes a MD5130 step-down chip and its peripheral circuits, and the MD5130 step-down chip is used to step down the 5V voltage output by the MC34063 step-down chip to 3.3V to power the circuit; the corresponding end of the LED indicator circuit 90 is electrically connected to the corresponding end of the MCU; the main control circuit 20 includes an MCU and its peripheral circuits, and the model of the MCU is CS2109BGO.

Referring to Figure 5, the NB transmitting circuit 30 includes a NB module circuit 301, a NB module reset wake-up circuit 306, a NB power control circuit 302, a level matching circuit 303, an antenna matching circuit 304, a SIM card circuit 305, and a NB power supply circuit 307; the NB module circuit 301 includes a MN316 chip and its peripheral circuits, and the corresponding ends of the MN316 chip are electrically connected to the NB module reset wake-up circuit 306, the NB power control circuit 302, the level matching circuit 303, the antenna matching circuit 304, the SIM card circuit 305, and the corresponding ends of the MCU, respectively, and the corresponding end of the NB power control circuit 302 is also electrically connected to the corresponding end of the NB power supply circuit 307.

6, the infrared receiving circuit 40 includes an IRM-56384 infrared receiving head and its peripheral circuits. The corresponding end of the IRM-56384 infrared receiving head is electrically connected to the corresponding end of the MCU for detecting fire. The infrared transmitting tube and the receiving tube are installed at a certain angle in the optical maze of the bottom cover 14. In a smoke-free environment, the infrared receiving tube can hardly receive the signal of the infrared transmitting tube. When a fire occurs, smoke will enter the maze. Due to the scattering effect of smoke on light, the infrared receiving tube receives a weak signal. The MCU microprocessor performs a threshold judgment on the signal. If the alarm threshold is reached or exceeded, the buzzer 3 emits a high-decibel alarm sound, the output port emits an alarm level signal, and the red indicator light flashes, so that people can know the fire as soon as possible.

7, the voice control circuit 50 includes a microphone MIC1, a resistor R17, a resistor R19, a resistor R37, a resistor R16, a resistor R13, a resistor R12, a capacitor C8, a capacitor C16, a capacitor C9, a capacitor C14, a transistor Q6, a transistor Q4, and a MOS tube V5; one end of the microphone MIC1 is electrically connected to the first end of the resistor R17 and the first end of the capacitor C8; the second end of the capacitor C8 is electrically connected to the first end of the resistor R19, the first end of the capacitor C16, and the first end of the transistor Q6; the first end of the transistor Q6 is grounded, and the third end of the transistor Q6 is electrically connected to the ground. It is electrically connected to the second end of the capacitor C16, the second end of the resistor R19, the first end of the resistor R37, and the first end of the capacitor C9. The second end of the capacitor C9 is electrically connected to the first end of the capacitor C14, the first end of the resistor R16, and the first end of the transistor Q4. The second end of the transistor Q4 is grounded. The third end of the transistor Q4 is electrically connected to the second end of the capacitor C14, the second end of the resistor R16, and the first end of the resistor R13. The second end of the resistor R13 is electrically connected to the first end of the resistor R12 and the source of the MOSFET V5. The drain of the MOSFET V5 is electrically connected to the second end of the resistor R12.

8 , the LED driving circuit 60 includes a PT4115 driving chip and its peripheral circuits, and a corresponding end of the PT4115 driving chip is electrically connected to a corresponding end of the MCU.

Working principle of this utility model:

When a fire occurs, smoke will enter the detector. Due to the scattering effect of smoke on light, the infrared receiving tube receives a weak signal and sends it to the MCU microprocessor. The MCU signal performs threshold judgment. If it reaches or exceeds the alarm threshold, the buzzer 3 is controlled to emit a high-decibel alarm sound, and the output port sends an alarm level signal. At the same time, the red indicator light is controlled to flash, so that people can know the fire as soon as possible. When the smoke in the detection environment dissipates, the alarm automatically returns to normal working state, and the alarm information is sent to the external cloud platform through the NB transmitting circuit 30. The mobile phone can obtain the state of the intelligent smoke sensor, alarm events, battery voltage and other attributes, so as to promptly notify relevant personnel to handle it, and also improve the safety warning capability of the pipe network, so as to better protect social property and life safety.

The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly/indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims (10)

1. An NB infrared lighting smoke detector, characterized in that it comprises: a mounting plate, a bottom cover arranged on the mounting plate, a surface cover engaged with the bottom cover, an arc-shaped light board arranged between the surface cover and the bottom cover, a buzzer, a PCB board key assembly, a Fresnel lens arranged on the PCB board key assembly, a PCB board assembly and a power supply assembly, a metal pressure rod and an anti-missing switch arranged on the power supply assembly; The PCB board assembly includes a main control circuit, an NB transmitting circuit, an infrared receiving circuit, a voice control circuit, an LED driving circuit, a temperature detection circuit, and a buzzer circuit; the corresponding ends of the main control circuit are electrically connected to the corresponding ends of the NB transmitting circuit, the infrared receiving circuit, the voice control circuit, the LED driving circuit, the temperature detection circuit, and the buzzer circuit respectively; the voice control circuit and the LED driving circuit are both connected to the arc light board; the buzzer circuit is electrically connected to the buzzer. 2. The NB infrared illuminator smoke detector according to claim 1 is characterized in that the arc-shaped lamp board is installed on the surface cover, the Fresnel lens is opposite to the window on the surface cover, and the PCB board button assembly, PCB board assembly, and power supply assembly are all arranged on the bottom cover. 3. The NB infrared illuminator smoke detector according to claim 2 is characterized in that the bottom cover and the top cover are fixed by means of snaps, and the mounting plate and the bottom cover are fixed by screws. 4. The NB infrared lighting smoke detector according to claim 1 is characterized in that the PCB board assembly is also provided with a power supply and networking interface circuit and a step-down circuit; the power supply and networking interface circuit is used to output a 12V voltage to power the circuit, and the step-down circuit is used to step down the 12V input by the power supply and networking interface circuit to power the circuit. 5. The NB infrared lighting smoke detector according to claim 4 is characterized in that the step-down circuit includes a step-down circuit 1 and a step-down circuit 2; the step-down circuit 1 includes a MC34063 step-down chip and its peripheral circuits, and the MC34063 step-down chip is used to step down the 12V voltage output by the power supply and networking interface circuit to 5V to power the circuit; the step-down circuit 2 includes a MD5130 step-down chip and its peripheral circuits, and the MD5130 step-down chip is used to step down the 5V voltage output by the MC34063 step-down chip to 3.3V to power the circuit. 6. The NB infrared illuminator smoke detector according to claim 1, characterized in that the main control circuit includes an MCU and its peripheral circuits, and the model of the MCU is CS2109BGO. 7. The NB infrared lighting smoke detector according to claim 6 is characterized in that the NB transmitting circuit includes a NB module circuit, a NB module reset wake-up circuit, a NB power supply control circuit, a level matching circuit, an antenna matching circuit, a SIM card circuit, and a NB power supply circuit; the NB module circuit includes a MN316 chip and its peripheral circuits, and the corresponding ends of the MN316 chip are electrically connected to the NB module reset wake-up circuit, the NB power supply control circuit, the level matching circuit, the antenna matching circuit, the SIM card circuit, and the corresponding ends of the MCU, respectively, and the corresponding end of the NB power supply control circuit is also electrically connected to the corresponding end of the NB power supply circuit. 8. The NB infrared illuminator smoke detector according to claim 7, characterized in that the infrared receiving circuit comprises an IRM-56384 infrared receiving head and its peripheral circuit, and the corresponding end of the IRM-56384 infrared receiving head is electrically connected to the corresponding end of the MCU. 9. The NB infrared lighting smoke detector according to claim 8 is characterized in that the voice control circuit includes a MIC1 microphone, a resistor R17, a resistor R19, a resistor R37, a resistor R16, a resistor R13, a resistor R12, a capacitor C8, a capacitor C16, a capacitor C9, a capacitor C14, a transistor Q6, a transistor Q4, and a MOS tube V5; one end of the MIC1 microphone is electrically connected to the first end of the resistor R17 and the first end of the capacitor C8 respectively; the second end of the capacitor C8 is electrically connected to the first end of the resistor R19, the first end of the capacitor C16, and the first end of the transistor Q6 respectively; the first end of the transistor Q6 is electrically connected to the first end of the resistor R19, the first end of the capacitor C16, and the first end of the transistor Q6 The third end of the transistor Q6 is electrically connected to the second end of the capacitor C16, the second end of the resistor R19, the first end of the resistor R37, and the first end of the capacitor C9 respectively. The second end of the capacitor C9 is electrically connected to the first end of the capacitor C14, the first end of the resistor R16, and the first end of the transistor Q4 respectively. The second end of the transistor Q4 is grounded. The third end of the transistor Q4 is electrically connected to the second end of the capacitor C14, the second end of the resistor R16, and the first end of the resistor R13 respectively. The second end of the resistor R13 is electrically connected to the first end of the resistor R12 and the source of the MOSFET V5 respectively. The drain of the MOSFET V5 is electrically connected to the second end of the resistor R12. 10. The NB infrared illuminator smoke detector according to claim 9, characterized in that the LED driving circuit comprises a PT4115 driving chip and its peripheral circuit, and the corresponding end of the PT4115 driving chip is electrically connected to the corresponding end of the MCU.