WO2019119327A1

WO2019119327A1 - Wireless smoke detector

Info

Publication number: WO2019119327A1
Application number: PCT/CN2017/117589
Authority: WO
Inventors: 邱海燕
Original assignee: 邱海燕
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2019-06-27

Abstract

A wireless smoke sensor, comprising a sensor (1) and an alarm (2) communication connected, wherein, the sensor (1) comprises a smoke sensing module (11) and a wireless charging receiving module (12), the alarm (2) comprises a power module (20), an alarm module (21) and a wireless charging transmitting module (22), during operation, the wireless charging transmitting module (22) of the alarm (2) receives the electric energy transmitted by the power module (20), and transmits the electric energy to the wireless charging receiving module (12) of the sensor (1) in the wireless manner, the wireless charging receiving module (12) transmits the electric energy to the smoke sensing module (11) to supply power thereto, so as to achieve wireless power supply to the sensor (1) by the alarm (2), and when using and installing, the alarm (2) is directly plugged into a power outlet, and the sensor (1) is installed at any position within a certain distance, which is convenient to use.

Description

Wireless smoke detector

Technical field

The invention relates to the technical field of smoke alarms, and in particular to a wireless smoke detector.

Background technique

Among disasters, fires are one of the most frequent and widespread threats to public safety and social development. With the development of modern society, more and more types of electrical appliances are used, which is accompanied by an increasing burden of indoor wiring, coupled with the aging of the line, etc., resulting in an increase in the incidence of indoor fires, giving people life. And property security poses a huge threat. If the fire can be detected in the early stage of the fire and the fire is controlled, the probability of fire can be effectively reduced. For this reason, more and more indoor installations are used to sense the smoke at the time of the fire. The device for alarming, that is, the smoke sensor.

The existing smoke detector generally includes an inductor and an alarm connected thereto. The sensor is generally installed on the roof of the room to sense the concentration of smoke in the room. When the concentration of the smoke exceeds the standard, it indicates that there is a fire in the room. The sensor will send an alarm signal to the alarm. When the alarm receives the alarm signal, it will fire a fire alarm to remind the indoor personnel to control the fire.

The sensors and alarms of the above-mentioned smoke detectors need to be powered to maintain normal operation. In the prior art, the alarms and the sensors are respectively connected to the power source, and the power cord needs to be disposed. The buried power cord needs to be newly added with a power cord. The newly added power cord usually exposes the wall surface, which affects the appearance and is inconvenient to use. Due to this problem, many people have long known that the serious harm of fire, but did not install smoke detectors in the room in time, which is very unfavorable to safety.

Therefore, it is necessary to provide a new smoke detector to solve the above-mentioned long-standing problems.

Summary of the invention

The object of the present invention is to provide a wireless smoke sensor, which can be directly connected to an existing power socket by installing an alarm device without using a power cord during installation, and is convenient to use at any position within a certain distance.

To achieve the above object, the present invention provides a wireless smoke sensor comprising an inductor and an alarm connected to the sensor;

The sensor includes a smoke sensing module and a wireless charging receiving module electrically connected to the smoke sensing module; the alarm device includes a power module, an alarm module electrically connected to the power module, and a wireless charging transmitting module electrically connected to the power module; the smoke sensing module is in communication with the alarm module, and the wireless charging transmitting module can transmit the electrical energy to the wireless charging receiving module in a wireless manner.

The invention also provides a wireless smoke sensor, comprising an inductor and an alarm connected to the sensor;

The sensor includes a smoke sensing module and a wireless charging receiving module electrically connected to the smoke sensing module; the alarm device includes a power module, an alarm module electrically connected to the power module, and a wireless connection with the power module. a charging transmitting module; the smoke sensing module is in communication with the alarm module; and the wireless charging transmitting module can transmit the electrical energy to the wireless charging receiving module in a wireless manner;

Wherein, the power module is used to connect to an AC power grid;

The alarm module includes a control unit, a buzzer electrically connected to the control unit, and an alarm signal receiving unit electrically connected to the control unit; the control unit is electrically connected to the power module; the smoke sensing module a processing unit, a sensing unit electrically connected to the processing unit, and an alarm signal transmitting unit electrically connected to the processing unit, the alarm signal receiving unit receiving a signal emitted by the alarm signal transmitting unit;

The smoke sensing module is an ion smoke sensing module, a photoelectric smoke sensing module, or an infrared beam smoke sensing module.

The invention has the beneficial effects that the wireless smoke detector of the invention receives the electric energy transmitted by the power module by the wireless charging transmitting module of the alarm, and transmits the electric energy to the wireless charging receiving module of the sensor in a wireless form, and the wireless charging receiving module transmits the electric energy. The utility model is transmitted to the smoke sensing module to supply power to the wireless power supply of the sensor by the alarm device. Therefore, the wireless smoke sensor of the invention does not need to be installed with a power cord when installing, and directly inserts the alarm device into the existing power socket. On the top, the sensor is installed at any position within a certain distance, which is convenient to use.

DRAWINGS

The detailed description of the present invention and the accompanying drawings are to be understood,

In the drawings,

1 is a schematic structural view of a wireless smoke detector of the present invention;

2 is a schematic structural view of an alarm module of a wireless smoke sensor of the present invention;

3 is a schematic structural view of a smoke sensing module of the wireless smoke sensor of the present invention;

4 is a wireless charging transmitter module and a wireless device of a first embodiment of the wireless smoke sensor of the present invention; Schematic diagram of the charging receiving module;

5 is a schematic structural diagram of a wireless charging transmitting module and a wireless charging receiving module according to a second embodiment of the wireless smoke sensor of the present invention;

6 is another schematic structural view of an inductor of a wireless smoke sensor of the present invention;

Fig. 7 is another schematic structural view of an alarm device of the wireless smoke sensor of the present invention.

Detailed ways

In order to further clarify the technical means and effects of the present invention, the following detailed description will be made in conjunction with the preferred embodiments of the invention and the accompanying drawings.

Referring to Figure 1, the wireless smoke sensor of the present invention comprises a sensor 1 and an alarm 2 connected to the sensor 1;

The sensor 1 includes a smoke sensing module 11 and a wireless charging receiving module 12 electrically connected to the smoke sensing module 11 . The alarm device 2 includes a power module 20 , an alarm module 21 electrically connected to the power module 20 , and The wireless charging transmitting module 22 is electrically connected to the power module 20; the smoke sensing module 11 is communicatively connected to the alarm module 21.

The smoke sensing module 11 is configured to sense a smoke concentration, and send an alarm signal to the alarm module 21 when the smoke concentration exceeds a predetermined concentration threshold. The alarm module 21 is configured to perform a fire alarm after receiving an alarm signal. The wireless charging transmitting module 22 is configured to receive the electrical energy transmitted by the power module 20, and transmit the electrical energy to the wireless charging receiving module 12 in a wireless manner; the wireless charging receiving module 12 is configured to receive the electrical energy transmitted by the wireless charging transmitting module 22, The power is transmitted to the smoke sensing module 11 to supply power thereto.

Specifically, referring to FIG. 2, the alarm module 21 includes a control unit 211, a buzzer 212 electrically connected to the control unit 211, and an alarm signal receiving unit 213 electrically connected to the control unit 211. The control unit 211 The electrical module 20 is electrically connected. The control unit 211 drives the buzzer 212 to emit an alarm sound after receiving the alarm signal, thereby performing a fire alarm.

Referring to FIG. 3, the smoke sensing module 11 includes a processing unit 111, a sensing unit 112 electrically connected to the processing unit 111, and an alarm signal transmitting unit 113 electrically connected to the processing unit 111. The alarm signal receiving unit The 213 receives the alarm signal emitted by the alarm signal transmitting unit 113, so that the control unit 211 is communicably connected to the smoke sensing module 11 through the alarm signal receiving unit 213 and the alarm signal transmitting unit 113.

In operation, the smoke sensing module 11 senses the smoke concentration by using the sensing unit 112, and the sensing unit 112 transmits the sensing result to the processing unit 111. When the smoke concentration exceeds a predetermined concentration threshold, the processing unit 111 controls the alarm. The signal transmitting unit 113 sends an alarm signal, which is received by the alarm signal receiving unit 213 of the alarm module 21 and transmitted to the control unit 211. The control unit 211 drives the buzzer 212 to emit an alarm sound based on the alarm signal, thereby performing a fire alarm.

Please refer to FIG. 4 , which is a first embodiment of the wireless smoke sensor of the present invention. The wireless charging transmitting module 22 and the wireless charging receiving module 12 wirelessly transmit energy by means of magnetic resonance (Magnetic Resonance).

Specifically, the wireless charging and transmitting module 22 includes a power transmitting circuit 221 electrically connected to the power module 20, the power transmitting circuit 221 includes a transmitting coil L1 and a first resonant capacitor C1, and one end of the transmitting coil L1 is electrically Connect the power module 20, the other end is electrically connected to one end of the first resonant capacitor C1, the other end of the first resonant capacitor C1 is electrically connected to the power module 20;

The wireless charging receiving module 12 includes a power receiving circuit 121 electrically connected to the smoke sensing module 11. The power receiving circuit 121 includes a receiving coil L2 and a second resonant capacitor C2, and one end of the receiving coil L2 and the sense of smoke The measuring module 11 is electrically connected, the other end is electrically connected to one end of the second resonant capacitor C2, and the other end of the second resonant capacitor C2 is electrically connected to the smoke sensing module 11;

The power transmission circuit 221 and the power receiving circuit 121 have the same resonant frequency, so that electromagnetic resonance is generated between the power transmitting circuit 221 and the power receiving circuit 121, and thus the power module 20 sends the power to the wireless charging transmitting module 22. After the electrical circuit 221 transmits the electrical energy, the electrical energy can be transmitted from the power transmitting circuit 221 to the power receiving circuit 121 of the wireless charging receiving module 12 in a wireless manner, and then transmitted to the smoke sensing module electrically connected to the power receiving circuit 121. 11. Power the smoke sensing module 11 to maintain its normal operation.

Specifically, the power module 20 is used to connect to an AC power grid. Further, the power module 20 has a plug through which a plug is connected to a socket connected to the AC grid, so that the power module 20 is connected to the AC grid.

Specifically, the inductor 1 can be placed at any position, preferably on an indoor roof.

Specifically, the smoke sensing module 11 can be, but is not limited to, an ionized smoke sensing module, a photoelectric smoke sensing module, or an infrared beam smoke sensing module.

It should be noted that, in the first embodiment of the wireless smoke sensor of the present invention, the wireless charging receiving module 12 electrically connected to the smoke sensing module 11 is disposed in the sensor 1, and the power module is disposed in the alarm 2. 20 electrically connected wireless charging transmitting module 22, further, the wireless charging receiving module 12 and the wireless charging transmitting module 22 wirelessly transmit energy by means of magnetic resonance, specifically, the transmitting coil is disposed in the wireless charging transmitting module 22 A power transmission circuit 221 composed of L1 and the first resonance capacitor C1 is provided with a power receiving circuit 121 composed of a receiving coil L2 and a second resonance capacitor C2, and a resonance of the power transmitting circuit 221 and the power receiving circuit 121 in the wireless charging receiving module 12. The frequency is the same, both generate electromagnetic resonance, so when working, the wireless by the alarm 2 The charging and transmitting module 22 receives the power transmitted by the power module 20, and transmits the power to the wireless charging receiving module 12 of the sensor 1 in a wireless manner, and the wireless charging receiving module 12 transmits the power to the smoke sensing module 11 to supply power thereto. Therefore, the sensor 2 can be wirelessly powered by the alarm device 2, without connecting the sensor 1 and the alarm 2 through the connection line, and there is no need to set a battery that needs to be frequently replaced in the sensor 1, and the wireless smoke sensor is not required to be installed. The power cord is arranged, the alarm is directly plugged into the existing power socket, and the sensor is installed at any position within a certain distance, which is convenient to use, and at the same time, the alarm 2 receives the alarm signal transmitted by the sensor 1 Direct fire alarm, no need to connect with the alarm system in the background, so the alarm 2 can be connected to any socket nearby to connect the power module 20 to the AC grid, and the position selection is flexible, effectively expanding the application of the wireless smoke detector. range.

Please refer to FIG. 5 , which is a second embodiment of the wireless smoke sensor of the present invention. The second embodiment is different from the first embodiment in that the wireless charging transmitting module 22 and the wireless charging receiving module 12 pass through. The radio waves transmit energy wirelessly, and the rest are the same as in the first embodiment.

Specifically, the wireless charging and transmitting module 22 includes a first converting unit 223 and a radio wave transmitter 224 electrically connected to the first converting unit 223; the first converting unit 223 is electrically connected to the power module 20;

The wireless charging receiving module 12 includes a radio wave receiver 123 and a second converting unit 124 electrically connected to the radio wave receiver 123. The second converting unit 124 is electrically connected to the smoke sensing module 11.

Specifically, the first converting unit 223 is configured to convert the electrical energy transmitted by the power module 20 into a radio wave;

The radio wave transmitter 224 is configured to transmit radio waves converted by the first converting unit 223;

The radio wave receiver 123 is configured to receive radio waves transmitted by the radio wave transmitter 224;

The second converting unit 124 is configured to convert the radio wave received by the radio wave receiver 123 into electric energy to supply power to the smoke sensing module 11.

It should be noted that, in the second embodiment of the wireless smoke sensor of the present invention, the wireless charging receiving module 12 electrically connected to the smoke sensing module 11 is disposed in the sensor 1, and the power module is disposed in the alarm 2. 20 electrically connected wireless charging transmitting module 22, further, wirelessly transmitting energy between the wireless charging receiving module 22 and the wireless charging transmitting module 12 by way of radio waves, specifically, setting the serial connection in the wireless charging transmitting module 22 A conversion unit 223 and a radio wave transmitter 224 are provided with a radio wave receiver 123 and a second conversion unit 124 connected in series in the wireless charging receiving module 12, and the power module 3 is transmitted by the first converting unit 223 in the alarm unit 2. The electrical energy is converted into radio waves and is emitted outward by the radio wave transmitter 224, but by induction The radio wave receiver 123 in the device 1 collects and receives the radio waves emitted by the radio wave reflector 224, and the second conversion unit 124 converts the electric wave to the electric energy to be supplied to the smoke sensing module 11 to supply power thereto, thereby realizing the alarm device 2 Wireless power supply for the sensor 1 does not need to connect the sensor 1 and the alarm 2 through the connection line, and there is no need to set a battery that needs to be frequently replaced in the sensor 1. The wireless smoke sensor is installed without using a power cord, and will directly The alarm device 2 is plugged into the existing power socket, and the sensor 1 is installed at any position within a certain distance, which is convenient to use.

Specifically, referring to FIG. 6 , the sensor 1 may further include: a first power storage module 13 electrically connected to the smoke sensing module 11 and the wireless charging receiving module 12 . After receiving the power transmitted by the wireless charging transmitting module 22, the wireless charging receiving module 12 transmits the power to the smoke sensing module 11 to supply power thereto, and part of the power is transmitted to the first power storage module 13. The first power storage module 13 stores the part of the electrical energy, so that after the wireless charging and transmitting module 22 stops transmitting the electrical energy to the wireless charging and receiving module 12, the first electrical storage module 13 can use the stored electrical energy for the smoke sensing module 11 The power supply maintenance period works normally to prevent the smoke sensing module 11 from failing due to the failure of energy transmission between the wireless charging transmitting module 22 and the wireless charging receiving module 12, thereby enhancing the reliability of the wireless smoke sensor.

Specifically, referring to FIG. 7, the alarm device 2 may further include: a second power storage module 23 electrically connected to the power module 20, the alarm module 21, and the wireless charging and transmitting module 22, so that the power module 20 is powered off. The alarm 2 can also work normally when power cannot be supplied. The first power storage module 13 and the second power storage module 23 can both be rechargeable batteries, such as lithium batteries.

In summary, the wireless smoke sensor of the present invention receives the power transmitted by the power module by the wireless charging transmitter module of the alarm, and transmits the power to the wireless charging receiving module of the sensor in a wireless manner, and the wireless charging receiving module transmits the power. The smoke sensing module supplies power to the wireless power supply of the sensor by the alarm, so there is no need to connect the sensor and the alarm through the connection line, and there is no need to set a battery that needs frequent replacement in the sensor, the wireless cigarette When the sensor is installed, it is not necessary to lay the power cord. The alarm is directly plugged into the existing power socket, and the sensor is installed at any position within a certain distance, which is convenient to use.

In the above, various other changes and modifications can be made in accordance with the technical solutions and technical concept of the present invention, and all such changes and modifications are within the scope of the claims of the present invention. .

Claims

A wireless smoke sensor includes an inductor and an alarm connected to the sensor;

The sensor includes a smoke sensing module and a wireless charging receiving module electrically connected to the smoke sensing module; the alarm device includes a power module, an alarm module electrically connected to the power module, and a wireless connection with the power module. And charging the transmitting module; the smoke sensing module is in communication with the alarm module, and the wireless charging transmitting module can transmit the electrical energy to the wireless charging receiving module in a wireless manner.
The wireless smoke sensor of claim 1 , wherein the wireless charging transmitting module comprises a power transmitting circuit electrically connected to the power module, the power transmitting circuit comprising a transmitting coil and a first resonant capacitor, the transmitting coil One end is electrically connected to the power module, the other end is electrically connected to one end of the first resonant capacitor, and the other end of the first resonant capacitor is electrically connected to the power module;

The wireless charging receiving module includes a power receiving circuit electrically connected to the smoke sensing module, the power receiving circuit includes a receiving coil and a second resonant capacitor, and one end of the receiving coil is electrically connected to the smoke sensing module, and the other One end is electrically connected to one end of the second resonant capacitor, and the other end of the second resonant capacitor is electrically connected to the smoke sensing module;

The power transmission circuit has the same resonant frequency as the power receiving circuit.
The wireless smoke sensor of claim 1 , wherein the wireless charging transmitting module comprises a first converting unit and a radio wave transmitter electrically connected to the first converting unit; the first converting unit and the power module Electrical connection

The wireless charging receiving module includes a radio wave receiver and a second converting unit electrically connected to the radio wave receiver; the second converting unit is electrically connected to the smoke sensing module.
The wireless smoke sensor of claim 1 , wherein the sensor further comprises: a first power storage module electrically connected to the smoke sensing module and the wireless charging receiving module; the first power storage module is Rechargeable Battery.
The wireless smoke sensor of claim 1 , wherein the alarm further comprises: a second power storage module electrically connected to the power module, the alarm module and the wireless charging transmitter module; the second power storage module To charge the battery.
The wireless smoke sensor according to claim 1, wherein the alarm module comprises a control unit, a buzzer electrically connected to the control unit, and an alarm signal receiving unit electrically connected to the control unit, the control unit and The power module is electrically connected; the smoke sensing module includes a processing unit, a sensing unit electrically connected to the processing unit, and an alarm signal transmitting unit electrically connected to the processing unit, and the alarm signal receiving unit receives the alarm signal The letter emitted by the transmitting unit number.
A wireless smoke sensor includes an inductor and an alarm connected to the sensor;

The sensor includes a smoke sensing module and a wireless charging receiving module electrically connected to the smoke sensing module; the alarm device includes a power module, an alarm module electrically connected to the power module, and a wireless connection with the power module. a charging transmitting module; the smoke sensing module is in communication with the alarm module; and the wireless charging transmitting module can transmit the electrical energy to the wireless charging receiving module in a wireless manner;

Wherein, the power module is used to connect to an AC power grid;

The alarm module includes a control unit, a buzzer electrically connected to the control unit, and an alarm signal receiving unit electrically connected to the control unit; the control unit is electrically connected to the power module; the smoke sensing module a processing unit, a sensing unit electrically connected to the processing unit, and an alarm signal transmitting unit electrically connected to the processing unit, the alarm signal receiving unit receiving a signal emitted by the alarm signal transmitting unit;

The smoke sensing module is an ion smoke sensing module, a photoelectric smoke sensing module, or an infrared beam smoke sensing module.
The wireless cigarette sensor according to claim 7, wherein the wireless charging transmitting module comprises a power transmitting circuit electrically connected to the power module, the power transmitting circuit comprising a transmitting coil and a first resonant capacitor, the transmitting coil One end is electrically connected to the power module, the other end is electrically connected to one end of the first resonant capacitor, and the other end of the first resonant capacitor is electrically connected to the power module;

The wireless charging receiving module includes a power receiving circuit electrically connected to the smoke sensing module, the power receiving circuit includes a receiving coil and a second resonant capacitor, and one end of the receiving coil is electrically connected to the smoke sensing module, and the other One end is electrically connected to one end of the second resonant capacitor, and the other end of the second resonant capacitor is electrically connected to the smoke sensing module;

The power transmission circuit has the same resonant frequency as the power receiving circuit.
The wireless smoke sensor of claim 7, wherein the wireless charging transmitting module comprises a first converting unit and a radio wave transmitter electrically connected to the first converting unit; the first converting unit and the power module Electrical connection

The wireless charging receiving module includes a radio wave receiver and a second converting unit electrically connected to the radio wave receiver; the second converting unit is electrically connected to the smoke sensing module.
The wireless smoke sensor of claim 7, wherein the sensor further comprises a first power storage module electrically connected to the smoke sensing module and the wireless charging receiving module; the alarm further comprising a power module The second power storage module electrically connected to the alarm module and the wireless charging transmitter module.