CN218630951U

CN218630951U - Power failure alarm circuit and device

Info

Publication number: CN218630951U
Application number: CN202222997020.3U
Authority: CN
Inventors: 原崇军; 龚光泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-03-14
Anticipated expiration: 2032-11-10

Abstract

The utility model provides a power failure alarm circuit and device relates to the alarm device field. The circuit comprises a first power supply module, a second power supply module, a singlechip module, a relay module and a GSM module; the input ends of the first power supply module and the second power supply module are used for being connected with an external alternating current power supply, the output end of the first power supply module is connected with the input end of the single chip microcomputer module, the output end of the first power supply module is further connected with the coil end of the relay module, the output end of the single chip microcomputer module is connected with the coil end of the relay module, the contact end of the relay module is connected with the input end of the GSM module, and the output end of the second power supply module is connected with the power supply input end of the GSM module. The circuit structure is optimized, so that the alarm range of power failure alarm can be enlarged, and the complexity of the circuit can be reduced.

Description

Power failure alarm circuit and device

Technical Field

The utility model relates to an alarm device field particularly, relates to a power failure alarm circuit and device.

Background

Electronic science and technology has gone into thousands of households, but the following equipment and production safety problems are more and more emphasized, for example, power grids, machine rooms, aquariums, automatic production lines, laboratories, farms and other places require 24-hour operation of the production lines, and communication facilities, street lamp lines, electric wire and cable theft prevention and the like need to immediately alarm when power failure occurs. At present, the alarm is used for various households, such as a power failure alarm, an audible and visual alarm, a shouting alarm and the like, wherein the power failure alarm is an important protection measure. However, in the prior art, the power-off alarm adopting sound-light alarm not only has a complex internal circuit structure and high cost, but also has limited alarm coverage area, and has the problem of untimely power-off notification.

SUMMERY OF THE UTILITY MODEL

In order to overcome above-mentioned problem or solve above-mentioned problem at least partially, the embodiment of the utility model provides a power failure alarm circuit and device, through optimizing circuit structure, can improve the alarm range of power failure warning and reduce the complexity of circuit.

The embodiment of the utility model is realized like this:

in a first aspect, an embodiment of the present application provides a power failure alarm circuit, which includes a first power module, a second power module, a single chip module, a relay module, and a GSM module; the input of first power module and second power module all is used for linking to each other with outside alternating current power supply, the output of first power module links to each other with single chip module's input, the output of first power module still links to each other with relay module's coil end, single chip module's output links to each other with relay module's coil end, relay module's contact end links to each other with GSM module's input, second power module's output links to each other with GSM module's power input end, second power module's surplus electricity holding time is greater than first power module's surplus electricity holding time.

Based on the first aspect, in some embodiments of the present invention, the first power module includes a rectifier circuit and a DC-DC conversion circuit that are connected in sequence, an input end of the rectifier circuit is used to be connected to an external ac power source, an output end of the DC-DC conversion circuit is connected to an input end of the single chip module, and an output end of the DC-DC conversion circuit is further connected to a coil end of the relay module.

In some embodiments of the present invention, the power supply further comprises an AC-DC isolation circuit connected to the output of the rectification circuit.

The utility model discloses an in some embodiments, still including warning uninterrupted power source and alarm lamp, the input of alarm lamp links to each other with the contact end of warning uninterrupted power source and relay module in proper order.

The utility model discloses an in some embodiments, still include the alarm bell, the alarm bell is parallelly connected with the alarm lamp.

In some embodiments of the present invention, the GSM module is of HC-K02-LTE type.

In some embodiments of the present invention, the single chip module is a model GYJ-0183.

In a second aspect, an embodiment of the present application provides a power failure alarm device, which includes a housing and a circuit board provided with the above power failure alarm circuit, where the circuit board is disposed in the housing.

Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:

the utility model discloses an utilize first power module, second power module, single-chip module, relay module and GSM module to carry out warning circuit configuration optimization for the power consumption node that needs the monitoring is inserted jointly to the input when first power module and second power module, can monitor the outage condition of power consumption node, and timely with outage information transmission to remote communication terminal on, realize remote power failure warning purpose. In addition, since the sound and light alarm by the buzzer and the light emitter is not needed to be used continuously, a spare battery is not needed to be designed, the structure and the volume of the circuit can be effectively optimized, and the miniaturization and the cost reduction are facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a power failure alarm circuit of the present invention;

fig. 2 is a schematic structural diagram of another embodiment of the power failure alarm circuit of the present invention;

fig. 3 is a schematic structural diagram of another embodiment of the power failure alarm circuit of the present invention;

fig. 4 is a schematic structural diagram of another embodiment of the power failure alarm circuit of the present invention.

Icon: 1. a first power supply module; 2. a second power supply module; 3. a single chip module; 4. a relay module; 5. a GSM module; 6. a rectifying circuit; 7. a DC-DC conversion circuit; 8. an AC-DC isolation circuit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Examples

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the individual features of the embodiments can be combined with one another without conflict.

Referring to fig. 1-2, an embodiment of the present invention provides a power failure alarm circuit, which includes a first power module 1, a second power module 2, a single chip module 3, a relay module 3, and a GSM module 4; the input of first power module 1 and second power module 2 all is used for linking to each other with outside alternating current power supply, the output of first power module 1 links to each other with single chip module 3's input, the output of first power module 1 still links to each other with relay module 3's coil end, single chip module 3's output links to each other with relay module 3's coil end, relay module 3's contact end links to each other with GSM module 4's input, second power module 2's output links to each other with GSM module 4's power input end, second power module 2's surplus electric power duration is greater than first power module 1's surplus electric power duration.

For the sake of understanding, referring to fig. 1, the signal flow direction of the switches K1, K2, K3 and K4 is described in combination, it should be noted that the switches are not necessarily actually present except that the switch K3 is the normally open switch portion of the relay module 3. Specifically, the on/off of the switch K1 is used for simulating the on/off condition of the power utilization node connected to the input ends of the first power module 1 and the second power module 2, when the switch K1 is closed, it indicates that the power utilization node is normally powered on, and when the switch K1 is disconnected, it indicates that the power utilization node is in a power-off state. The on-off of the switch K2 is used for simulating the condition of the output control signal of the single chip microcomputer module 3, when the switch K2 is closed, the single chip microcomputer module 3 is indicated to output a corresponding control signal, and when the switch K2 is disconnected, the single chip microcomputer module 3 is indicated not to output a corresponding control signal. When the coil end of the relay module 3 is connected with a control signal (the switch K2 is closed), the normally open switch K3 of the relay module 3 is closed. The on-off of the switch K4 is used for simulating whether the GSM module 4 receives a signal transmitted by the relay module 3, when the switch K4 is closed, the signal transmitted by the relay module 3 is normally accessed by the GSM module 4, and when the switch K4 is opened, the signal transmitted by the relay module 3 is disconnected by the GSM module 4. The remaining power maintaining time of the second power module 2 is longer than that of the first power module 1, and not the remaining power maintaining time of the second power module 2 and the first power module 1, but the remaining power maintaining time is required for the operation of the component requiring the operation provided to the corresponding branch.

Therefore, in the above embodiment, after the input ends of the first power module 1 and the second power module 2 are connected to the power utilization node that needs to monitor the power failure condition, when the power utilization node is in a normal power supply state, the switch K1 is closed, the corresponding first power module 1 is powered on, the direct-current voltage is normally output, and the single chip microcomputer module 3 is connected to the working voltage from the first power module 1 and outputs the corresponding control signal. Then, a control loop (coil loop) of the relay module 3 is electrified to control the normally open switch K3 to be closed, and at the moment, the switch K4 is normally electrified (simulated closing). If the power consumption node loses the electricity, switch K1 disconnection to first power module 1 loses the electricity, and corresponding single chip module 3 loses operating voltage, thereby will can not continue to output control signal (switch K2 opens) again. Then, the control loop (coil loop) of the relay module 3 loses power, the normally open switch K3 is controlled to return to the off state, and the switch K4 loses power normally (analog disconnection). That is, because the remaining power duration of the second power module 2 is longer than the remaining power duration of the first power module 1, when the switch K4 is turned off, the operating voltage received by the GSM module 4 from the second power module 2 has not completely disappeared, so that when the GSM module 4 detects that the switch K4 is turned off (actually indicating that the signal received from the relay module 3 is turned off), the GSM module 4 can transmit one or more signals to a mobile terminal such as a mobile phone, so that a user can know that the power consumption node is powered off on the mobile phone.

In a word, the input ends of the first power module 1 and the second power module 2 are jointly connected to the power utilization node to be monitored, when the power utilization node loses power (is powered off), because the remaining power maintaining time of the branch where the second power module 2 is located is longer than the remaining power maintaining time of the branch where the first power module 1 is located, in the period (actually measured about 50 ms) when the GSM module 4 loses power completely, the GSM module 4 is disconnected from the signal received by the relay module 3, the GSM module 4 immediately transmits a power-off signal outwards through a self transmitter (the existing GSM module 4 needs an external antenna), and therefore, as long as the power-off signal is received on a mobile terminal such as a mobile phone, the power utilization node can be known to be in the power-off condition. Therefore, the user does not need to know that the power utilization node is powered off only within the range of audible and visual alarm as in the prior art. And because the sound and light alarm by the buzzer and the light emitter is not needed to be continuously utilized, a spare battery is not needed to be designed, the structure and the volume of the circuit can be effectively optimized, and the miniaturization and the low cost are facilitated.

Illustratively, the GSM module 4 may be an HC-K02-LTE model, the single chip microcomputer module 3 may be a GYJ-0183 model, the first power module 1 may be an AC-DC module outputting a DC 12V voltage, and the second power module 2 may be an AC-DC module outputting a DC 6V voltage. In the modules corresponding to the models, when the working voltage of the single chip microcomputer module 3 of the GYJ-0183 model is reduced to 10.7V, the switch K2 is immediately disconnected, then the normally open switch K3 on the relay module 3 is disconnected, and then the signal transmitted by the relay module 3 connected to the GSM module 4 is disconnected. Although the first power module 1 and the second power module 2 lose power simultaneously, due to the existence of the single chip module 3 and the relay module 3, the power consumption and the action are faster, so that the GSM module 4 can detect the disconnection of the signal transmitted by the connected relay module 3 and can transmit the signal outwards in the period when the second power module 2 loses power completely.

Referring to fig. 3-4, in some embodiments of the present invention, the first power module 1 includes a rectifier circuit 5 and a DC-DC conversion circuit 7 connected in sequence, an input end of the rectifier circuit 5 is connected to an external ac power source, an output end of the DC-DC conversion circuit 7 is connected to an input end of the single chip module 3, and an output end of the DC-DC conversion circuit 7 is further connected to a coil end of the relay module 3.

In the above embodiment, the input end of the rectifying circuit 5 is connected to an external ac power supply (actually, the input end is connected to a power utilization node for monitoring the power failure condition), so that an original ecological power supply with poor quality of connected electric energy, such as a mains supply or a storage battery power supply, can be converted into a dc voltage with high quality meeting the requirements of the whole circuit. And then the direct-current voltage converted by the rectifying circuit 5 is further stabilized at a required voltage value through the DC-DC conversion circuit 7, so that the stability of the working voltage of a post-stage circuit is improved. Therefore, the situation that the single chip microcomputer module 3 is easily mistakenly deenergized by the power utilization node due to the fact that the fluctuation of the provided direct-current voltage is large is avoided. That is, because when the operating voltage of the single chip module 3 similar to the model GYJ-0183 decreases to 10.7V, the switch K2 is immediately turned off, and if the 12V dc voltage provided by the first power module 1 fluctuates greatly, a false alarm may occur (the minimum value is lower than 10.7V, and certainly, in a conventional circuit, a power module with such poor precision rarely occurs, but it is not excluded that the voltage which the selected single chip module 3 may act on is higher than 10.7V, so that the precision of the dc voltage to be connected is higher).

Referring to fig. 4, in some embodiments of the present invention, the present invention further includes an AC-DC isolation circuit 8 connected to the output end of the rectification circuit 5.

In the above embodiment, the gas discharge tube and the varistor may be used to design the AC-DC isolation circuit 8 in a combined manner, so that a good surge protection effect can be provided for the subsequent circuit, and the AC-DC isolation circuit 8 may also be designed through the fuse, so that a good overcurrent protection effect can be provided for the subsequent circuit.

Referring to fig. 1-4, in some embodiments of the present invention, the relay module further includes an alarm ups and an alarm lamp, and an input end of the alarm lamp is sequentially connected to the alarm ups and a contact end of the relay module 3.

In consideration of the above, if only the GSM module 4 is used to send out a signal for alarming, it may not be known that the power consumption node is powered off in time when the user does not carry a mobile terminal such as a mobile phone. Thereby carry out the light through setting up a reserve uninterrupted power source and alarm lamp and report to the police, let the user can know whether cut off the power consumption node through the situation of observing the alarm lamp.

Additionally, some embodiments of the present invention further include an alarm bell, which is connected in parallel to the alarm lamp. Wherein, through installing the alarm bell additional for the user can also know the condition of power consumption node through the sound condition, and is more intelligent convenient.

The embodiment of the utility model provides a power failure alarm device is still provided, it includes the casing and is provided with foretell power failure alarm circuit's circuit board, and the casing is located to the circuit board. The circuit board provided with the power failure alarm circuit is packaged in the shell to form the power failure alarm device, so that the circuit can be conveniently used. When encapsulating the circuit board in the casing, can fix the circuit board in the casing, thereby prevent that the circuit board is in the casing because the collision that rocks and lead to is in the same direction as bad. For example, a connection post for fixing the circuit board may be provided in the housing, that is, a plurality of through holes may be symmetrically provided on the circuit board, and then the connection post passes through the through hole at the corresponding position and is in damping connection therewith, and then both ends of the connection post are respectively fixed to the inner side wall of the housing. One end of the connecting column can be connected with the circuit board in a butting mode, and the other end of the connecting column is connected with the inner side wall of the shell.

It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A power failure alarm circuit is characterized by comprising a first power supply module, a second power supply module, a single chip microcomputer module, a relay module and a GSM module; the input of first power module and second power module all is used for linking to each other with outside alternating current power supply, first power module's output with single chip module's input links to each other, first power module's output still with relay module's coil end links to each other, single chip module's output with relay module's coil end links to each other, relay module's contact end with GSM module's input links to each other, second power module's output with GSM module's power input end links to each other, second power module's surplus electricity holding time is greater than first power module's surplus electricity holding time.

2. The power failure alarm circuit of claim 1, wherein the first power module comprises a rectifying circuit and a DC-DC conversion circuit connected in sequence, an input end of the rectifying circuit is used for connecting with an external alternating current power supply, an output end of the DC-DC conversion circuit is connected with an input end of the single chip microcomputer module, and an output end of the DC-DC conversion circuit is further connected with a coil end of the relay module.

3. The power outage warning circuit of claim 2, further comprising an AC-DC isolation circuit connected to the output of the rectifying circuit.

4. The power failure alarm circuit according to claim 1, further comprising an alarm uninterruptible power supply and an alarm lamp, wherein an input end of the alarm lamp is sequentially connected to the alarm uninterruptible power supply and a contact end of the relay module.

5. The power failure alarm circuit of claim 4, further comprising an alarm bell connected in parallel with the alarm lamp.

6. The power failure alarm circuit of claim 1, wherein the GSM module is of a HC-K02-LTE type.

7. The power failure alarm circuit of claim 1, wherein the single chip microcomputer module is of a type GYJ-0183.

8. A power failure alarm device comprising a housing and a circuit board provided with the power failure alarm circuit of any one of claims 1 to 7, the circuit board being provided in the housing.